JP2008246370A - Gas-liquid separator - Google Patents

Abstract

In a gas-liquid separation device, interference between a fluid introduced into the inside and a gas separated inside is prevented to improve separation efficiency and downsize the device.
A case 12 having a cylindrical sealed shape is provided with an introduction portion 13 for introducing oil mixed in with air at an outer peripheral portion thereof, and a liquid discharge portion 14 for discharging oil separated with air at a lower portion. The gas discharge part 15 for discharging the air separated from the oil is provided at the upper part, and the introduction part 13 is provided with an introduction port 13a having a long oval shape in the axial direction of the case 12.
[Selection] Figure 1

Description

  The present invention relates to a gas-liquid separation device that separates and removes air mixed in lubricating oil in a lubricating device that supplies lubricating oil to a lubrication-necessary part such as a valve train system and a sliding system in an internal combustion engine. is there.

  In an engine, lubrication oil is constantly supplied to a valve operating system that opens and closes intake valves and exhaust valves, and a sliding system that drives crankshafts, pistons, etc. to prevent wear and heat generation, and to operate smoothly. I try to secure it. In general, lubricating oil is stored in an oil pan attached to the lower part of the engine, and this oil is supplied to each lubrication required part of the engine through an oil gallery by an oil pump.

  By the way, as described above, this lubricating oil is supplied to each lubrication required part of the engine such as a valve system and a sliding system to prevent wear and heat generation. Air (bubbles) is mixed by the stirring of the lubricating oil. If bubbles are mixed in the lubricating oil, a predetermined amount of lubricating oil cannot be supplied, and seizure or the like due to insufficient lubricating oil occurs.

  Therefore, a removal device for removing bubbles mixed in the lubricating oil is described in, for example, the following Patent Document 1 and proposed. The gas-liquid separation tank described in Patent Document 1 includes a cylindrical vertical tank having a liquid discharge pipe at the bottom and a gas discharge pipe at the top, and a cylinder inner circumferential tangential direction provided at the upper cylindrical wall of the tank. An upper nozzle that discharges fluid and a lower nozzle that is provided in the lower part of the cylindrical wall of the tank and discharges liquid in the direction of the inner circumference of the cylinder and opposite to the upper nozzle 4 are provided.

Japanese Patent Laid-Open No. 10-057510

  However, in the conventional gas-liquid separation tank described above, the fluid supplied from the upper nozzle interferes with the gas separated inside, and the gas-liquid separation efficiency is lowered. That is, as shown in FIG. 15, in the conventional gas-liquid separation tank 001, when the gas-liquid two-phase fluid is introduced into the inside from the upper nozzle 003 of the tank 002, the air is centered on the axis of the tank 002 by the centrifugal separation action. The liquid is separated by moving to the side, and is lifted as it is by the buoyancy and discharged from the gas discharge pipe 004, while the liquid descends while swirling and is discharged from the liquid discharge pipe 005. However, if the opening area of the upper nozzle 003 is increased in order to ensure the introduction amount of the gas-liquid two-phase fluid introduced into the tank 002, the fluid supplied from the upper nozzle is separated from the gas in the tank 002. The gas becomes a spiral shape and the gas-liquid separation efficiency is reduced.

  The present invention solves such a problem, and prevents interference between the fluid introduced into the interior and the gas separated inside, thereby improving separation efficiency and reducing the size of the apparatus. An object is to provide a gas-liquid separator.

  In order to solve the above-described problems and achieve the object, the gas-liquid separation device of the present invention is a gas-liquid separation device that separates liquid and gas using centrifugal force due to swirling of gas-liquid two-phase fluid. A case having a cylindrical sealed shape, an introduction portion provided on an outer peripheral portion of the case for introducing a gas-liquid two-phase fluid into the case, and a gas-liquid two-phase fluid provided at a lower portion of the case. A liquid discharge part for discharging the separated liquid; and a gas discharge part provided at the upper part of the case for discharging the gas separated from the gas-liquid two-phase fluid, wherein the introduction part is long in the axial direction of the case It has an introduction port having a long hole shape.

  In the gas-liquid separation device of the present invention, the introduction port is characterized in that it has an oval shape, a rectangular shape, or a shape in which a large number of circles are continuous.

  In the gas-liquid separation device of the present invention, a plurality of the introduction portions are provided in the circumferential direction of the case.

  In the gas-liquid separation device of the present invention, the plurality of introduction portions are provided at different positions in the axial direction of the case.

  The gas-liquid separation device of the present invention is a gas-liquid separation device that separates liquid and gas using centrifugal force generated by the swirling of the gas-liquid two-phase fluid, the case having a cylindrical sealed shape, and the case An introduction part for introducing a gas-liquid two-phase fluid into the case, and an introduction amount adjusting means for adjusting an introduction amount of the gas-liquid two-phase fluid introduced into the case from the introduction part, A liquid discharge part for discharging the liquid separated from the gas-liquid two-phase fluid provided at the lower part of the case; and a gas discharge part for discharging the gas separated from the gas-liquid two-phase fluid provided at the upper part of the case. It is characterized by comprising.

  In the gas-liquid separation device of the present invention, the case is configured by an inner case and an outer case disposed concentrically to form an outer swirl chamber and an inner swirl chamber, and the outer swirl chamber and the inner swirl chamber. A communication port communicating with the swirl chamber is provided, and the introduction amount adjusting means includes an opening / closing body that adjusts a passage area of the communication port.

  In the gas-liquid separation device of the present invention, the opening / closing body changes the passage area of the communication port according to the introduction speed of the gas-liquid two-phase fluid introduced from the introduction part into the case. .

  In the gas-liquid separator of the present invention, a liquid transport pump is connected to the liquid discharge section, and a gas transport pump is connected to the gas discharge section.

  In the gas-liquid separation device of the present invention, a liquid transport pump is connected to the liquid discharge part, and a return passage is connected to the gas discharge part for returning the liquid to the storage tank.

  In the gas-liquid separation device of the present invention, the case is characterized in that the inner diameters of the upper part and the lower part are set to the same size, and the liquid discharge part is provided at the lower part of the outer periphery of the case.

  According to the gas-liquid separation device of the present invention, a liquid separated from the gas-liquid two-phase fluid is provided at the lower portion with an introduction portion for introducing the gas-liquid two-phase fluid inside the outer peripheral portion of the case having a cylindrical sealed shape. Since the liquid discharge part that discharges the gas, the gas discharge part that discharges the gas separated from the gas-liquid two-phase fluid is provided at the upper part, and the introduction port that forms a long hole shape in the axial direction of the case as the introduction part, The separation efficiency can be improved by preventing interference between the fluid introduced into the interior and the gas separated inside, and the apparatus can be downsized.

  Further, according to the gas-liquid separation device of the present invention, an introduction part for introducing a gas-liquid two-phase fluid into the outer peripheral part is provided on the outer peripheral part of the case having a cylindrical sealed shape, and the introduction part is introduced into the inside from this introduction part. An introduction amount adjusting means for adjusting the introduction amount of the gas-liquid two-phase fluid is provided, a liquid discharge portion for discharging the liquid separated from the gas-liquid two-phase fluid is provided at the lower portion, and the gas separated from the gas-liquid two-phase fluid is provided at the upper portion. Since the gas discharge section for discharging is provided, it is possible to prevent the interference between the fluid introduced into the inside and the gas separated inside, thereby improving the separation efficiency and reducing the size of the apparatus. it can.

  Embodiments of the gas-liquid separator according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this Example.

  1 is a schematic configuration diagram illustrating a gas-liquid separator according to a first embodiment of the present invention, FIG. 2 is a plan view of the gas-liquid separator according to the first embodiment, and FIG. 3 is a gas-liquid separator according to the first embodiment. It is the schematic showing the effect | action of.

  The gas-liquid separation device according to the first embodiment is applied to a lubrication device for an internal combustion engine, and as a gas-liquid two-phase fluid, the lubricating oil (oil) mixed with air (bubbles) is swirled to generate oil generated. It separates into liquid (oil) and gas (air) using centrifugal force. That is, as shown in FIGS. 1 and 2, the gas-liquid separation device 11 according to the first embodiment includes a case 12, an introduction part 13, a liquid discharge part 14, and a gas discharge part 15. A supply passage 17 from the oil tank 16 is connected to the introduction portion 13, and an oil pump 18 is provided in the supply passage 17. In addition, a liquid discharge passage 20 to the oil lubrication portion 19 is connected to the liquid discharge portion 14, while a gas discharge passage 21 is connected to the gas discharge portion 15. Here, the oil lubrication unit 19 is, for example, a valve system that opens and closes an intake valve and an exhaust valve of an engine, and a sliding system that drives a crankshaft, a piston, and the like.

  The case 12 described above has a cylindrical sealed shape, and includes an upper cylindrical portion 12a whose inner diameter is constant along the axial direction, and a lower conical portion 12b whose inner diameter decreases along the lower side in the axial direction. The introduction part 13 includes an introduction port 13a formed in the upper part of the case 12, that is, the outer peripheral part of the upper cylindrical part 12a, and a connecting passage 13b connected to the introduction port 13a. The introduction port 13a has a long hole shape that is long in the axial direction of the case 12, and has an oval shape in this embodiment. The connecting passage 13b has a trumpet shape in which the tip end is enlarged in the vertical direction with respect to the base end, and the supply passage 17 is connected to the base end, while the tip is connected to the introduction port 13a. In this case, the supply passage 17 and the connection passage 13b are connected to the outer peripheral surface of the case 12 in a tangential direction, and the oil stored in the oil tank 16 is passed through the supply passage 17 by the oil pump 18 to the case 12. It can introduce | transduce into the inside from the inlet 13a, and can rotate the inside of the case 12. FIG.

  The liquid discharge portion 14 is provided on the lower surface portion of the lower conical portion 12 b in the case 12, and can discharge oil from which air has been separated and removed inside the case 12. Moreover, the gas discharge part 15 is provided in the upper surface part of the upper cylindrical part 12a in the case 12, and can discharge | emit the air isolate | separated from oil.

  Accordingly, when the oil pump 18 is operated in synchronization with the driving of the engine, the oil stored in the oil tank 16 is introduced into the case 12 through the supply passage 17. At this time, the oil is introduced in a tangential direction along the inner wall surface of the case 12 from the connection passage 13b through the introduction port 13a, so that a swirl flow is generated inside the case 12. Then, the air mixed in the oil by the centrifugal separation is separated by moving to the axial center side of the case 12, is lifted as it is by the buoyancy, and is discharged from the gas discharge portion 15 to the gas discharge passage 21. On the other hand, the oil from which the air has been separated descends while turning, and is discharged from the liquid discharge portion 14 to the liquid discharge passage 20.

  At this time, as shown in FIG. 3, the introduction port 13 a of the case 12 has an oval shape that is long in the axial direction of the case 12, so that the oil introduced from the introduction port 13 a into the case 12 enters the inner wall surface. Therefore, the oil is prevented from interfering with the air that is separated inside the case 12 and rises while turning around the center.

  As described above, in the gas-liquid separation device 11 according to the first embodiment, the case 12 having the hermetic cylindrical shape is provided with the introduction portion 13 for introducing the oil mixed with air in the outer peripheral portion, and the air in the lower portion. The liquid discharge part 14 for discharging the oil separated from the oil is provided, the gas discharge part 15 for discharging the air separated from the oil is provided at the upper part, and the introduction part 13 is formed as an introduction port 13a having a long oval shape in the axial direction of the case 12. Is provided.

  Therefore, when the oil is introduced into the case 12 from the inlet 13a of the introduction part 13, the oil is swirled inside the case 12, and the mixed air rises while moving to the axial center side of the case 12 by the centrifugal separation action. Thus, the oil is discharged from the gas discharge portion 15, while the oil from which the air has been separated descends while turning along the inner wall surface in the case 12 and is discharged from the liquid discharge portion 14. At this time, since the introduction port 13a of the case 12 has an oval shape that is long in the axial direction of the case 12, the oil introduced into the case 12 from the introduction port 13a and swung along the inner wall surface, and the case 12 It is possible to prevent interference with the air that is separated inside and rises while turning around the center. As a result, it is possible to improve the gas-liquid separation efficiency, and it is not necessary to reduce the passage area of the inlet 13a, and a predetermined processing amount, that is, an appropriate oil supply amount to the oil lubrication unit 19 is ensured. be able to. Further, unlike the prior art, it is not necessary to provide a preliminary turning passage or the like, and the apparatus can be downsized.

  FIG. 4 is a schematic configuration diagram illustrating a gas-liquid separation device according to Embodiment 2 of the present invention. In addition, the same code | symbol is attached | subjected to the member which has the same function as what was demonstrated in the Example mentioned above, and the overlapping description is abbreviate | omitted.

  In the second embodiment, as shown in FIG. 4, the gas-liquid separation device 31 includes a case 32, an introduction part 33, a liquid discharge part 34, and a gas discharge part 35. A supply passage 36 is connected to the introduction portion 33.

  The case 32 has a cylindrical sealed shape and includes an upper cylindrical portion 32a and a lower conical portion 32b. The introduction part 33 includes an introduction port 33a formed in the upper part of the case 32, that is, the outer peripheral part of the upper cylindrical part 32a, and a connection passage 33b connected to the introduction port 33a. The introduction port 33a has a long hole shape that is long in the axial direction of the case 32. In the present embodiment, the introduction port 33a has a saddle shape in which two circles are continuous. That is, by performing the drilling process twice on the upper cylindrical portion 32a of the case 32, it is possible to form the introduction port 33a having a stagnation shape in which two circles are continuous. The introduction port 33a is not limited to this daruma shape, and may be a shape in which three or more circles are continuous, and a continuous portion of the circle may be finished in a straight line by post-processing. The connecting passage 33b has a trumpet shape in which the tip end is enlarged in diameter up and down with respect to the base end portion, the supply passage 36 is connected to the base end portion, and the tip end portion is connected to the introduction port 33a. In this case, the supply passage 36 and the connection passage 33 b are tangentially connected to the outer peripheral surface of the case 32, and oil is introduced into the inside of the case 32 from the introduction port 33 a of the case 32 through the supply passage 36. The inside can be swiveled.

  Therefore, when an oil pump (not shown) is operated in synchronization with the driving of the engine, oil is introduced into the case 32 through the supply passage 36. At this time, the oil is introduced in the tangential direction along the inner wall surface of the case 32 through the introduction port 33a from the connection passage 33b, so that a swirl flow is generated inside the case 32. Then, the air mixed in the oil is separated by moving to the axial center side of the case 32 by the centrifugal separation action, is lifted as it is by buoyancy, and is discharged from the gas discharge portion 35. On the other hand, the oil from which the air has been separated descends while turning and is discharged from the liquid discharge portion 34.

  At this time, since the introduction port 33a of the case 32 has a long daruma shape in the axial direction of the case 32, the oil introduced into the case 32 from the introduction port 33a and swung along the inner wall surface, Interference with air that is separated inside and rises while turning around the center is prevented.

  As described above, in the gas-liquid separator 31 according to the second embodiment, the case 32 having a cylindrical sealed shape is provided with the introduction portion 33 for introducing the oil mixed in the air at the outer peripheral portion, and the air at the lower portion. A liquid discharge part 34 for discharging the oil separated from the oil is provided, a gas discharge part 35 for discharging the air separated from the oil is provided at the upper part, and the oval shape that is long in the axial direction of the case 32 as the introduction part 33, that is, a daruma shape The inlet 33a is provided.

  Accordingly, when the oil is introduced into the case 32 from the introduction port 33a of the introduction portion 33, a swirl flow is generated inside the case 32, and the mixed air rises while moving to the axial center side of the case 32 by the centrifugal action. In this way, the oil is separated and discharged from the gas discharge portion 35, while the oil from which the air has been separated descends while turning along the inner wall surface in the case 32 and is discharged from the liquid discharge portion 34. At this time, since the introduction port 33a of the case 32 has a long daruma shape in the axial direction of the case 32, the oil introduced into the case 32 from the introduction port 33a and swung along the inner wall surface, It is possible to prevent interference with the air that is separated inside and rises while turning around the center side. As a result, it is possible to improve the gas-liquid separation efficiency, and it is not necessary to reduce the passage area of the introduction port 33a, and to secure a predetermined processing amount, that is, an appropriate oil supply amount to the oil lubrication unit. Can do.

  Further, in the second embodiment, the introduction port 33a has a long hole shape that is long in the axial direction of the case 32, and has a sword shape in which a plurality of circles are continuous. By performing a plurality of drilling operations, the introduction port 33a is formed. Can be easily formed, and the manufacturing can be facilitated and the manufacturing cost can be reduced. In this embodiment, it is not necessary to provide a preliminary turning passage or the like as in the prior art, and the apparatus can be downsized.

  FIG. 5 is a schematic configuration diagram illustrating a gas-liquid separation device according to Embodiment 3 of the present invention. In addition, the same code | symbol is attached | subjected to the member which has the same function as what was demonstrated in the Example mentioned above, and the overlapping description is abbreviate | omitted.

  In the third embodiment, as shown in FIG. 5, the gas-liquid separator 41 includes a case 42, an introduction part 43, a liquid discharge part 44, and a gas discharge part 45. A supply passage 46 is connected to the introduction portion 43.

The case 42 has a cylindrical sealed shape and includes an upper cylindrical portion 42a and a lower conical portion 42b. The introduction part 43 includes an introduction port 43a formed in the upper part of the case 42, that is, the outer peripheral part of the upper cylindrical part 42a, and a connection passage 43b connected to the introduction port 43a. The introduction port 43a has a long hole shape that is long in the axial direction of the case 42, and has a rectangular shape in this embodiment. That is, the upper cylindrical portion 42a has an upper cylindrical 42a _1, a middle cylinder 42a _2, are formed by bonding the lower cylinder 42a _3, the upper cylinder 42a ₁ is by processing a plate member in a C-shape, rectangular An opening having a shape, that is, an introduction port 43a can be formed. The connecting pipe 43b has a trumpet shape in which the tip end is enlarged in diameter up and down with respect to the base end, and the supply passage 46 is connected to the base end while the tip is connected to the introduction port 43a. In this case, the supply passage 36 and the connection passage 43 b are tangentially connected to the outer peripheral surface of the case 42, and oil is introduced into the case 42 from the introduction port 43 a of the case 42 through the supply passage 46. The inside can be swiveled.

  Therefore, when an oil pump (not shown) is operated in synchronization with the driving of the engine, oil is introduced into the case 42 through the supply passage 46. At this time, the oil is introduced in the tangential direction along the inner wall surface of the case 42 through the inlet 43a from the connection passage 43b, so that the oil turns into a swirl flow inside the case 42. Then, the air mixed in the oil is separated by moving to the axial center side of the case 42 by the centrifugal separation action, is lifted as it is by buoyancy, and is discharged from the gas discharge portion 45. On the other hand, the oil from which the air has been separated descends while turning and is discharged from the liquid discharge portion 44.

  At this time, since the introduction port 43a of the case 42 has an oval shape that is long in the axial direction of the case 42, oil introduced into the case 42 from the introduction port 43a and swung along the inner wall surface, and the case 42 Is prevented from interfering with air rising while turning around the center side.

  As described above, in the gas-liquid separation device 41 of the third embodiment, the case 42 having a cylindrical hermetic shape is provided with the introduction portion 43 for introducing the oil mixed in the air in the outer peripheral portion, and the air in the lower portion. A liquid discharge part 44 for discharging oil separated from the oil is provided, a gas discharge part 45 for discharging air separated from the oil is provided at the top, and the introduction part 43 has a rectangular shape that is elongated in the axial direction of the case 42. An introduction port 43a is provided.

  Accordingly, when the oil is introduced into the case 42 from the introduction port 43a of the introduction portion 43, a swirl flow is generated inside the case 42, and the mixed air rises while moving to the axial center side of the case 42 by the centrifugal separation action. Thus, the oil is discharged from the gas discharge portion 45, while the oil from which the air is separated descends while turning along the inner wall surface in the case 42 and is discharged from the liquid discharge portion 44. At this time, since the introduction port 43a of the case 42 has a rectangular shape elongated in the axial direction of the case 42, the oil introduced into the case 42 from the introduction port 43a and swung along the inner wall surface, It is possible to prevent interference with the air that is separated inside and rises while turning around the center side. As a result, it is possible to improve the gas-liquid separation efficiency, and it is not necessary to reduce the passage area of the introduction port 43a, and to secure a predetermined processing amount, that is, an appropriate oil supply amount to the oil lubrication unit. Can do.

In Example 3, the upper cylindrical portion 42a of the case 42, by coupling the upper cylindrical 42a ₁ and the cylinder 42a ₂ and the lower cylinder 42a ₃ in a C-shape to form the inlet port 43a of a rectangular shape By eliminating the need for drilling with a drill or the like, the introduction port 43a can be easily formed, facilitating manufacturing and reducing manufacturing costs. In this embodiment, it is not necessary to provide a preliminary turning passage or the like as in the prior art, and the apparatus can be downsized.

  FIG. 6 is a schematic configuration diagram illustrating a gas-liquid separator according to a fourth embodiment of the present invention, and FIG. 7 is a plan view of the gas-liquid separator according to the fourth embodiment. In addition, the same code | symbol is attached | subjected to the member which has the same function as what was demonstrated in the Example mentioned above, and the overlapping description is abbreviate | omitted.

  In the fourth embodiment, as shown in FIGS. 6 and 7, the gas-liquid separation device 51 includes a case 52, two introduction parts 53, a liquid discharge part 54, and a gas discharge part 55. A supply passage 56 is connected to each introduction portion 53.

  The case 52 has a cylindrical sealed shape and includes an upper cylindrical portion 52a and a lower conical portion 52b. Each introduction portion 53 includes an introduction port 53a formed in the upper portion of the case 52, that is, the outer peripheral portion of the upper cylindrical portion 52a, and a connection passage 53b connected to the introduction port 53a. In this case, two introduction portions 53 are provided at equal intervals in the circumferential direction of the case 52 and at the same position in the axial direction. The connecting passage 53b has a trumpet shape in which the tip end is enlarged in the vertical direction with respect to the base end, and the supply passage 56 is connected to the base end, while the tip is connected to the introduction port 53a. In this case, the supply passage 56 and the connection passage 53b are connected in a tangential direction with respect to the outer peripheral surface of the case 52, and oil is introduced into each case through the supply passages 56 from the introduction ports 53a of the case 52. The inside of 52 can be swung.

  Therefore, when an oil pump (not shown) is operated in synchronization with the driving of the engine, oil is introduced into the case 52 through the supply passages 56. At this time, the oil is introduced in the tangential direction along the inner wall surface of the case 52 through the inlets 53a from the respective connection passages 53b. Then, the air mixed in the oil is separated by moving to the axial center side of the case 52 by the centrifugal separation action, is lifted as it is by buoyancy, and is discharged from the gas discharge portion 55. On the other hand, the oil from which the air has been separated descends while turning and is discharged from the liquid discharge portion 54.

  At this time, since the introduction port 53a of the case 52 has an oval shape elongated in the axial direction of the case 52, the oil introduced into the case 52 from the introduction port 53a and swung along the inner wall surface, and the case 52 Is prevented from interfering with air rising while turning around the center side. Further, since the oil is introduced into the case 52 from the two introduction parts 53, the amount of oil introduced into the case 52 is increased, and the turning speed of the oil inside the case 52 is increased, so that the oil separation efficiency is increased. Will improve.

  As described above, in the gas-liquid separation device 51 of the fourth embodiment, the case 52 having a cylindrical sealed shape is provided with a plurality of introduction portions 53 for introducing oil mixed with air into the outer peripheral portion, A liquid discharge portion 54 for discharging oil separated from air is provided, and a gas discharge portion 55 for discharging air separated from oil is provided at the upper portion, and each introduction portion 52 has a long oval shape in the axial direction of the case 52. An introduction port 53a is provided.

  Accordingly, when the oil is introduced into the case 52 from the introduction port 53a of the introduction portion 53, a swirl flow is generated inside the case 52, and the mixed air rises while moving to the axial center side of the case 52 by the centrifugal separation action. Thus, the oil is discharged from the gas discharge portion 55, and the oil from which the air has been separated descends while turning along the inner wall surface in the case 52 and is discharged from the liquid discharge portion 54. At this time, since the introduction port 53a of the case 52 has an oval shape elongated in the axial direction of the case 52, the oil introduced into the case 52 from the introduction port 53a and swung along the inner wall surface, and the case 52 It is possible to prevent interference with the air that is separated inside and rises while turning around the center. As a result, the gas-liquid separation efficiency can be improved, and it is not necessary to reduce the passage area of the introduction port 53a, and a predetermined processing amount, that is, an appropriate oil supply amount to the oil lubrication unit is ensured. Can do.

  In the fourth embodiment, the case 52 is provided with two introduction portions 53 at equal intervals in the circumferential direction and at the same position in the axial direction. Therefore, since oil is introduced into the case 52 from the two introduction portions 53, the amount of oil introduced into the case 52 can be increased, and the turning speed of the oil inside the case 52 can be increased. The oil separation efficiency can be improved.

  FIG. 8 is a schematic configuration diagram illustrating a gas-liquid separation device according to Embodiment 5 of the present invention. In addition, the same code | symbol is attached | subjected to the member which has the same function as what was demonstrated in the Example mentioned above, and the overlapping description is abbreviate | omitted.

  In the fifth embodiment, as shown in FIG. 8, the gas-liquid separator 61 includes a case 62, two introduction parts 63, a liquid discharge part 64, and a gas discharge part 65. A supply passage 66 is connected to each introduction portion 63.

  The case 62 has a cylindrical sealed shape and includes an upper cylindrical portion 62a and a lower conical portion 62b. Each introducing portion 63 includes an introducing port 63a formed in an upper portion of the case 62, that is, an outer peripheral portion of the upper cylindrical portion 62a, and a connecting passage 63b connected to the introducing port 63a. In this case, two introduction portions 63 are provided at equal intervals in the circumferential direction of the case 62 and at different positions in the axial direction. The connection passage 63b has a trumpet shape in which the distal end portion is enlarged in the vertical direction with respect to the base end portion, the supply passage 66 is connected to the base end portion, and the distal end portion is connected to the introduction port 63a. In this case, the supply passage 66 and the connection passage 63b are tangentially connected to the outer peripheral surface of the case 62, and oil is introduced into the case 62 through the supply passages 66 from the respective inlets 63a of the case 62. The inside of 62 can be turned.

  Therefore, when an oil pump (not shown) is operated in synchronization with the driving of the engine, oil is introduced into the case 62 through the supply passages 66. At this time, the oil is introduced in the tangential direction along the inner wall surface of the case 62 from the respective connection passages 63b through the introduction ports 63a. Then, the air mixed in the oil is separated by moving to the axial center side of the case 62 by the centrifugal separation action, is lifted as it is by buoyancy, and is discharged from the gas discharge portion 65. On the other hand, the oil from which the air has been separated descends while turning and is discharged from the liquid discharge portion 64.

  At this time, since the introduction port 63a of the case 62 has an oval shape that is long in the axial direction of the case 62, the oil introduced into the case 62 from the introduction port 63a and swung along the inner wall surface, and the case 62 Is prevented from interfering with air rising while turning around the center side. Further, since the oil is introduced from the two introduction portions 63 to different positions in the case 62, the amount of oil introduced into the case 62 is increased, and the turning speed of the oil inside the case 62 is increased. Oil separation efficiency is improved.

  As described above, in the gas-liquid separator 61 according to the fifth embodiment, the oil 62 mixed with air is introduced into the outer periphery of the case 62 having a cylindrical sealed shape, and is provided at different positions in the axial direction. A plurality of introduction parts 63, a liquid discharge part 64 for discharging oil separated from the air at the lower part, a gas discharge part 65 for discharging air separated from the oil at the upper part, and a case 62 as each introduction part 62. An introduction port 63a having a long oval shape in the axial direction is provided.

  Accordingly, when the oil is introduced into the case 62 from the introduction port 63a of the introduction portion 63, a swirl flow is generated inside the case 62, and the mixed air rises while moving to the axial center side of the case 62 by the centrifugal separation action. Then, the gas is discharged from the gas discharge portion 65, while the oil from which the air has been separated descends while turning along the inner wall surface in the case 62 and is discharged from the liquid discharge portion 64. At this time, since the introduction port 63a of the case 62 has an oval shape that is long in the axial direction of the case 62, the oil introduced into the case 62 from the introduction port 63a and swung along the inner wall surface, and the case 62 It is possible to prevent interference with the air that is separated inside and rises while turning around the center. As a result, the gas-liquid separation efficiency can be improved, and it is not necessary to reduce the passage area of the introduction port 63a, and a predetermined processing amount, that is, an appropriate oil supply amount to the oil lubrication unit is ensured. Can do.

  Further, in the fifth embodiment, two introduction portions 63 are provided in the case 62 at equal intervals in the circumferential direction and at different positions in the axial direction. Accordingly, since oil is introduced from the two introduction portions 63 to different positions in the case 62, the amount of oil introduced into the case 62 can be increased and the flow rate thereof can be made uniform in the axial direction. It is possible to increase the rotational speed of the oil in the interior of the cylinder and improve the oil separation efficiency.

  In the fourth and fifth embodiments described above, the two introduction portions 53 and 63 are provided in the cases 52 and 62. However, the number is not limited to two, and three or more may be provided. The introduction portion 63 may be provided at the position.

  9 is a schematic configuration diagram illustrating a gas-liquid separator according to a sixth embodiment of the present invention, FIG. 10 is a horizontal sectional view of the gas-liquid separator according to the sixth embodiment, and FIG. 11 is a gas-liquid separator according to the sixth embodiment. It is a horizontal sectional view showing the operation state in an apparatus.

  In Example 6, as shown in FIGS. 9 and 10, the gas-liquid separation device 71 includes a case 72, an introduction part 73, a liquid discharge part 74, and a gas discharge part 75. A supply passage 76 is connected to each introduction portion 73, and an introduction amount adjustment mechanism that adjusts the introduction amount of oil introduced from the introduction portion 73 into the case 72 is provided in the case 72.

  In this case 72, the inner case 82 is concentrically disposed in the outer case 81, thereby forming an outer swirl chamber 83 between the outer case 81 and the inner case 82. A chamber 84 is formed. The inner case 82 is formed with a plurality of communication ports 85 a and 85 b that connect the outer swirl chamber 83 and the inner swirl chamber 84, and the communication ports 85 a and 85 b are formed on the inner case 82 in the inner swirl chamber 84. It is formed to be inclined in the tangential direction with respect to the inner wall surface. The outer case 81 and the inner case 82 have a cylindrical sealed shape, and are composed of upper cylindrical portions 81a and 82a and lower conical portions 81b and 82b. The introduction part 73 includes an introduction port 73a formed in the upper part of the inner case 82, that is, the outer peripheral part of the upper cylindrical part 82a, and a connecting passage 73b connected to the introduction port 73a.

  As an introduction amount adjusting mechanism, an opening / closing cylinder 86 as an opening / closing body is fitted to the outer peripheral portion of the inner case 82 so as to be rotatable in the circumferential direction. Openings 87a and 87b are formed corresponding to the plurality of communication ports 85a and 85b. A spring 88 as an urging member is stretched between the outer case 81 and the open / close cylinder 86. In FIG. 10, the open / close cylinder 86 is counterclockwise, that is, the oil turning direction. It is biased and supported in the reverse direction.

  Accordingly, when the introduction speed of the oil introduced from the introduction portion 73 into the outer swirl chamber 83 of the case 72 is low, the open / close cylinder 86 is positioned at the low speed position shown in FIG. 10 by the biasing force of the spring 88 and a stopper (not shown). Has been. Therefore, the three communication ports 85b are closed by the opening 87b of the opening / closing cylinder 86, and only the three communication ports 85a are opened by the opening 87a. When the introduction speed of the oil introduced from the introduction part 83 into the outer swirl chamber 83 of the case 82 becomes high, the open / close cylinder 86 rotates against the urging force of the spring 88 by the swirl force of the oil. It moves to the high speed position shown in FIG. Therefore, all the communication ports 85a and 85b are opened by the openings 87a and 87b, and the passage area can be enlarged.

  Further, the connecting passage 73b has a trumpet shape in which the tip end is enlarged in the vertical direction with respect to the base end, and the supply passage 76 is connected to the base end while the tip is connected to the introduction port 73a. . In this case, the supply passage 76 and the connection passage 73b are connected in a tangential direction with respect to the outer peripheral surface of the case 72, and oil is introduced into the case 72 through the supply passages 76 from the introduction ports 73a of the case 72. The inside of 72 can be swung.

  Therefore, when an oil pump (not shown) is operated in synchronization with the driving of the engine, oil is introduced into the case 72 through the supply passage 76. At this time, if the engine is in the low rotation speed region, as shown in FIG. 10, the oil is introduced in the tangential direction along the inner wall surface of the outer swirl chamber 83 from the connection passage 73b through the introduction port 73a. Since it is introduced into the inner swirl chamber 84 through the three communication ports 85a in the open state, a swirl flow is generated inside the inner swirl chamber 84. Therefore, when the engine is running at a low speed and the flow rate of the supply oil is small, the opening area between the outer swirl chamber 83 and the inner swirl chamber 84 (the opening area of the communication port 85a) is reduced to be introduced into the inner swirl chamber 84. The oil turning speed increases. Then, in the inner swirl chamber 84, the oil swirls at an appropriate speed, and the air mixed in the oil is separated by moving to the axial center side of the case 72 by the centrifugal separation action, and is lifted as it is by buoyancy, It is discharged from the discharge unit 75. On the other hand, the oil from which the air has been separated descends while turning and is discharged from the liquid discharge portion 74.

  On the other hand, when the engine is in the high rotation speed region, as shown in FIG. 11, oil is introduced in the tangential direction along the inner wall surface of the outer swirl chamber 83 through the inlet 73a from each connection passage 73b, Since it is introduced into the inner swirl chamber 84 through all the communication ports 85a, 85b in the open state, a swirl flow is generated inside the inner swirl chamber 84. Therefore, when the engine is rotating at a high speed and the flow rate of the supplied oil is large, the inner swirl chamber 84 is made larger by increasing the opening area of the outer swirl chamber 83 and the inner swirl chamber 84 (opening area of the communication ports 85a and 85b). The introduction amount increases while maintaining the swirling speed of the introduced oil. Then, in the inner swirl chamber 84, a large amount of oil swirls at an appropriate speed. Then, the air mixed in the oil is separated by moving to the axial center side of the case 72 by the centrifugal separation action, and rises as it is. The gas is discharged from the gas discharge unit 75. On the other hand, the oil from which the air has been separated descends while turning and is discharged from the liquid discharge portion 74.

  As described above, in the gas-liquid separation device 71 of Example 6, the case 72 having a cylindrical sealed shape is provided with the introduction portion 73 for introducing the oil mixed with the air in the outer peripheral portion, and the air in the lower portion. The liquid discharge part 74 for discharging the oil separated from the oil is provided, the gas discharge part 75 for discharging the air separated from the oil is provided at the upper part, and the amount of oil introduced into the case 72 from the introduction part 73 is adjusted to the case 72 An introduction amount adjusting mechanism is provided.

  Therefore, when oil is introduced into the case 72 from the introduction port 73a of the introduction part 73, when the engine is in the low rotation speed region, the oil introduced from the introduction port 73a into the outer swirl chamber 83 has three communication ports. While being introduced into the inner swirl chamber 84 through 85a, this oil is introduced into the inner swirl chamber 84 through all the communication ports 85a, 85b when the engine is in the high speed region. Therefore, the inner swirl chamber 84 is swirled at an appropriate speed, and the mixed air is separated by moving upward while moving to the axial center side of the case 72 by the centrifugal separation action, and is discharged to the gas discharge unit 75. The oil from which the air is separated descends while turning along the inner wall surface in the case 72 and is discharged from the liquid discharge portion 74. As a result, even if the oil flow rate changes, air can be properly separated from the oil, the gas-liquid separation efficiency can be improved, and a predetermined processing amount, that is, an appropriate amount to the oil lubrication unit can be improved. The oil supply amount can be secured.

  In the sixth embodiment, the case 72 is constituted by the outer case 81 and the inner case 82 arranged concentrically, thereby forming the outer swirl chamber 83 and the inner swirl chamber 84, and the outer swirl chamber 83 and the inner swirl chamber 83. Communication ports 85a and 85b communicating with the swirl chamber 84 are formed, and the passage areas can be adjusted by opening and closing the communication ports 85a and 85b by an opening / closing cylinder 86 as an introduction amount adjusting mechanism. Accordingly, the passage area can be easily changed with a simple configuration, and the gas-liquid separation efficiency can be improved, while the apparatus can be simplified.

  The opening / closing cylinder 86 can change the passage area of the communication ports 85a and 85b according to the introduction speed of the oil introduced from the introduction portion 73 into the case 72. Therefore, the passage area is appropriately changed according to the oil introduction speed, and the gas-liquid separation efficiency can be improved.

  In the above-described embodiment, the open / close cylinder 86 is urged and supported at a predetermined position by the urging force of the spring 88 and is rotated by the turning force of the oil. However, the communication ports 85a and 85b are switched by an electromagnetic solenoid or the like. The passage area may be changeable. In this case, since the oil has a high viscosity when the engine is warmed up, the passage area of the communication ports 85a and 85b is enlarged to reduce the load on the oil pump. Further, when it is desired to increase the oil separation efficiency, the flow area of the introduced oil is increased by reducing the passage area of the communication ports 85a and 85b. Further, the open / close cylinder 86 may be rotated by a driving force transmission mechanism such as a gear according to a control signal from the engine control unit.

  FIG. 12 is a schematic configuration diagram illustrating an engine lubrication device to which a gas-liquid separation device according to Embodiment 7 of the present invention is applied.

  In the engine lubrication device of the seventh embodiment, as shown in FIG. 12, the gas-liquid separation device 91 includes a case 92, an introduction portion 93, a liquid discharge portion 94, and a gas discharge portion 95. A supply passage 97 from the oil tank 96 is connected to the introduction portion 93. In addition, a liquid discharge path 99 to the oil lubrication section 98 is connected to the liquid discharge section 94, and an oil pump (liquid transport pump) 100 is provided in the liquid discharge path 99, while a gas discharge section 95 is connected to the oil tank 96. A gas exhaust passage 101 is connected, and an air pump (gas transport pump) 102 is provided in the gas exhaust passage 101. The oil pump 100 and the air pump 102 can be controlled by the control device 103 according to the engine operating state. The gas-liquid separator 91 is provided with an introduction amount adjustment mechanism that adjusts the amount of oil introduced from the introduction portion 93 into the case 92, similarly to the gas-liquid separator 71 of the sixth embodiment described above. .

  Therefore, when the oil pump 100 and the air pump 102 are driven and controlled by the control device 103, negative pressure acts on the gas-liquid separation device 91 via the liquid discharge passage 99 by the oil pump 100, and the oil in the oil tank 96 passes through the supply passage 97. Inhaled into the gas-liquid separator 91. Then, in this gas-liquid separation device 91, the oil swirls inside, so that the air mixed in the oil is separated by moving to the shaft center side by the centrifugal separation action, and rises as it is due to buoyancy, while the air The oil that has been separated descends while swirling. The air is returned to the oil tank 96 by the gas discharge passage 101, while the oil is supplied to the oil lubrication unit 98 by the liquid discharge passage 99.

  When the oil supply amount to the oil lubrication unit 98 varies according to the operating state of the engine, the control device 103 controls the oil pump 100 and the air pump 102 so that the air is supplied from the oil tank 96 through the supply passage 97. By increasing or decreasing the amount of oil introduced into the liquid separation device 91, the amount of oil supplied to the oil lubrication unit 98 can be increased or decreased.

  Thus, in the engine lubrication device having the gas-liquid separation device 91 according to the seventh embodiment, the supply passage 97 from the oil tank 96 is connected to the introduction portion 93 of the gas-liquid separation device 91, and the liquid discharge portion 94 is connected. An oil pump 100 is provided by connecting a liquid discharge passage 99 to the oil lubrication unit 98, while an air pump 102 is provided by connecting a gas discharge passage 101 to the oil tank 96 to the gas discharge unit 95.

  Accordingly, when the oil pump 100 is driven, a negative pressure is applied to the gas-liquid separator 91 through the liquid discharge passage 99, and the oil in the oil tank 96 is sucked into the gas-liquid separator 91 through the supply passage 97, and the oil inside The air mixed in the oil is separated by moving to the shaft center side by the centrifugal separation action, and is lifted as it is by buoyancy. On the other hand, the oil from which the air is separated is lowered while turning. Therefore, the gas-liquid separation device 91 is always in a negative pressure state, and the separation performance of air from the oil is improved by the action of boiling under reduced pressure, so that the gas-liquid separation efficiency can be improved.

  In the present embodiment, the oil pump 100 and the air pump 102 are controlled by the control device 103 to increase or decrease the amount of oil introduced from the oil tank 96 to the gas-liquid separation device 91 through the supply passage 97, and the oil lubrication unit The amount of oil supplied to 98 can be increased or decreased, and the gas-liquid separator 91 can properly separate air from the oil even if the oil flow rate changes, thereby improving the gas-liquid separation efficiency. In addition, a predetermined processing amount, that is, an appropriate oil supply amount to the oil lubrication unit can be ensured.

  FIG. 13 is a schematic configuration diagram showing an engine lubrication device to which a gas-liquid separation device according to Embodiment 8 of the present invention is applied.

  In the engine lubrication device according to the eighth embodiment, as shown in FIG. 13, the gas-liquid separation device 111 includes a case 112, an introduction portion 113, a liquid discharge portion 114, and a gas discharge portion 115. In this case, the inner diameter of the upper portion and the lower portion of the case 112 is set to the same size, and the liquid discharge portion 114 is provided at the lower outer periphery of the case 112. A supply passage 117 from the oil tank 116 is connected to the introduction portion 113. In addition, a liquid discharge passage 119 to the oil lubrication portion 118 is connected to the liquid discharge portion 114, and an oil pump (liquid transport pump) 120 is provided in the liquid discharge passage 119, while the gas discharge portion 115 is connected to the oil tank 116. A gas exhaust passage 121 is connected, and an air pump (gas transport pump) 122 is provided in the gas exhaust passage 121. The oil pump 120 and the air pump 122 can be controlled by the control device 123 according to the engine operating state. The gas-liquid separator 111 is provided with an introduction amount adjustment mechanism that adjusts the amount of oil introduced from the introduction part 113 into the case 112 in the same manner as the gas-liquid separator 71 of Example 6 described above. .

  Accordingly, when the oil pump 120 and the air pump 122 are driven and controlled by the control device 123, negative pressure acts on the gas-liquid separation device 111 through the liquid discharge passage 119 by the oil pump 120, and the oil in the oil tank 116 passes through the supply passage 117. Inhaled into the gas-liquid separator 111. Then, in this gas-liquid separation device 111, the oil swirls inside, so that the air mixed in the oil is separated by moving to the shaft center side by the centrifugal separation action and rises as it is due to buoyancy, while the air The oil that has been separated descends while turning. The air is returned to the oil tank 116 through the gas discharge passage 121, while the oil is supplied to the oil lubrication unit 118 through the liquid discharge passage 119.

  When the oil supply amount to the oil lubrication unit 118 varies according to the operating state of the engine, the control device 123 controls the oil pump 120 and the air pump 122 so that the air is supplied from the oil tank 116 through the supply passage 117. By increasing or decreasing the amount of oil introduced into the liquid separation device 111, the amount of oil supplied to the oil lubrication unit 118 can be increased or decreased.

  Thus, in the engine lubrication device having the gas-liquid separation device 111 according to the eighth embodiment, the supply passage 117 from the oil tank 116 is connected to the introduction portion 113 of the gas-liquid separation device 111 and the liquid discharge portion 114 is connected. An oil pump 120 is provided by connecting a liquid discharge passage 119 to the oil lubrication unit 118, and an air pump 122 is provided by connecting a gas discharge passage 121 to the oil tank 116 to the gas discharge unit 115.

  Therefore, when the oil pump 120 is driven, a negative pressure is applied to the gas-liquid separator 111 through the liquid discharge passage 119, and the oil in the oil tank 116 is sucked into the gas-liquid separator 111 through the supply passage 117, and the oil inside The air mixed in the oil is separated by moving to the shaft center side by the centrifugal separation action, and is lifted as it is by buoyancy. On the other hand, the oil from which the air is separated is lowered while turning. Therefore, in the gas-liquid separator 111, the performance of separating air from oil is improved by the action of the reduced-pressure boiling due to the constant negative pressure state, and the gas-liquid separation efficiency can be improved.

  In the present embodiment, the oil pump 120 and the air pump 122 are controlled by the control device 123, whereby the amount of oil introduced from the oil tank 116 to the gas-liquid separation device 111 through the supply passage 117 is increased or decreased. The oil supply amount to 118 can be increased or decreased. Further, the gas-liquid separator 111 can appropriately separate air from the oil even if the flow rate of the oil is changed, can improve the gas-liquid separation efficiency, and can also improve the predetermined processing amount, that is, the oil An appropriate oil supply amount to the lubrication part can be ensured.

  Further, in the gas-liquid separation device 111 of the present embodiment, the inner diameters of the upper part and the lower part of the case 112 are set to the same size, and the liquid discharge part 114 is provided at the lower outer periphery of the case 112. Accordingly, the conical portion is not required in the case, and the structure can be simplified and the cost can be reduced, and the oil separated from the air can be discharged from the liquid discharge portion 114 while being swirled. It is possible to reduce gas pressure loss and improve gas-liquid separation efficiency.

  FIG. 14 is a schematic configuration diagram illustrating an engine lubrication device to which a gas-liquid separation device according to Embodiment 9 of the present invention is applied.

  In the engine lubrication apparatus according to the eighth embodiment, as shown in FIG. 14, the gas-liquid separator 131 includes a case 132, an introduction part 133, a liquid discharge part 134, and a gas discharge part 135. A supply passage 137 from the oil tank 136 is connected to the introduction portion 133. Further, a liquid discharge passage 139 to the oil lubrication portion 138 is connected to the liquid discharge portion 134, and an oil pump (liquid transport pump) 140 is provided in the liquid discharge passage 139. On the other hand, an oil return passage 141 from the oil lubrication portion 138 to the oil tank 136 is provided, and a gas discharge passage 143 from the gas discharge portion 135 is connected to the venturi portion 142 of the return passage 141. The oil pump 140 can be controlled by the control device 144 according to the engine operating state. The gas-liquid separator 131 is provided with an introduction amount adjustment mechanism that adjusts the amount of oil introduced from the introduction part 133 into the case 132, similarly to the gas-liquid separator 71 of the sixth embodiment described above. .

  Accordingly, when the oil pump 140 is driven and controlled by the control device 144, negative pressure acts on the gas-liquid separation device 131 via the liquid discharge passage 139 by the oil pump 140, and the oil in the oil tank 136 is separated from the gas-liquid through the supply passage 137. Inhaled by the device 131. Then, in this gas-liquid separator 131, the oil swirls inside, so that the air mixed in the oil is separated by moving to the shaft center side by the centrifugal separation action, and rises as it is due to buoyancy, while the air The oil that has been separated descends while swirling. The oil is supplied to the oil lubrication unit 138 through the liquid discharge passage 139 and returned to the oil tank 136 through the return passage 141. Further, the air is sucked through the gas discharge passage 143 by the suction force generated in the venturi portion 142 and returned to the oil tank 136.

  When the oil supply amount to the oil lubrication unit 138 varies according to the operating state of the engine, the control device 144 controls the oil pump 140 so that the gas-liquid separation device passes through the supply passage 137 from the oil tank 136. By increasing or decreasing the amount of oil introduced to 131, the amount of oil supplied to the oil lubrication unit 138 can be increased or decreased.

  Thus, in the engine lubrication device having the gas-liquid separation device 131 of the ninth embodiment, the supply passage 137 from the oil tank 136 is connected to the introduction portion 133 of the gas-liquid separation device 131, and the liquid discharge portion 134 is connected. An oil pump 140 is provided by connecting a liquid discharge passage 139 to the oil lubrication portion 138, while a gas discharge passage 143 from the gas discharge portion 135 is connected to the venturi portion 142 of the return passage 141 from the oil lubrication portion 138 to the oil tank 136. Connected to.

  Accordingly, when the oil pump 140 is driven, a negative pressure acts on the gas-liquid separator 131 through the liquid discharge passage 139, and the oil in the oil tank 136 is sucked into the gas-liquid separator 131 through the supply passage 137, and the oil inside The air mixed in the oil is separated by moving to the shaft center side by the centrifugal separation action, and is lifted as it is by buoyancy. On the other hand, the oil from which the air is separated is lowered while turning. Therefore, in the gas-liquid separation device 131, the performance of separating air from oil is improved by the action of reduced-pressure boiling due to the constant negative pressure state, and the gas-liquid separation efficiency can be improved.

  In the present embodiment, the oil pump 140 is controlled by the control device 144 to increase / decrease the amount of oil introduced from the oil tank 136 through the supply passage 137 into the gas-liquid separation device 131, and to the oil lubrication unit 138. The oil supply amount can be increased or decreased, and the gas-liquid separation device 131 can properly separate air from the oil even if the oil flow rate changes, thereby improving the gas-liquid separation efficiency. In addition, a predetermined processing amount, that is, an appropriate oil supply amount to the oil lubrication unit can be ensured.

  Further, in the gas-liquid separation device 131 of this embodiment, the gas discharge passage 143 from the gas discharge portion 135 is connected to the venturi portion 142 of the return passage 141, and the gas discharge passage 143 is generated by the suction force generated in the venturi portion 142. Thus, the air tank 136 is returned to the oil tank 136, so that an air pump is not required and the structure can be simplified and the cost can be reduced.

  As described above, the gas-liquid separation device according to the present invention is intended to prevent the interference between the fluid introduced inside and the gas separated inside, thereby improving the separation efficiency and reducing the size of the device. Yes, it is not limited to an internal combustion engine, and is useful when applied to any gas-liquid separator.

It is a schematic block diagram showing the gas-liquid separator which concerns on Example 1 of this invention. It is a top view in the gas-liquid separation apparatus of Example 1. FIG. It is the schematic showing the effect | action in the gas-liquid separator of Example 1. FIG. It is a schematic block diagram showing the gas-liquid separator which concerns on Example 2 of this invention. It is a schematic block diagram showing the gas-liquid separator which concerns on Example 3 of this invention. It is a schematic block diagram showing the gas-liquid separator which concerns on Example 4 of this invention. 6 is a plan view of a gas-liquid separator according to Embodiment 4. FIG. It is a schematic block diagram showing the gas-liquid separator which concerns on Example 5 of this invention. It is a schematic block diagram showing the gas-liquid separator which concerns on Example 6 of this invention. It is a horizontal sectional view in the gas-liquid separator of Example 6. It is a horizontal sectional view showing the operation state in the gas-liquid separation device of Example 6. It is a schematic block diagram showing the engine lubrication apparatus to which the gas-liquid separation apparatus which concerns on Example 7 of this invention was applied. It is a schematic block diagram showing the engine lubrication apparatus to which the gas-liquid separation apparatus which concerns on Example 8 of this invention was applied. It is a schematic block diagram showing the engine lubrication apparatus to which the gas-liquid separator which concerns on Example 9 of this invention was applied. It is the schematic showing the effect | action in the conventional gas-liquid separator.

Explanation of symbols

11, 31, 41, 51, 61, 71, 91, 111, 131 Gas-liquid separation device 12, 32, 42, 52, 62, 72, 92, 112, 132 Case 13, 33, 43, 53, 63, 73 , 93, 113, 133 Introduction part 13a, 33a, 43a, 53a, 63a, 73a Introduction port 14, 34, 44, 54, 64, 74, 94, 114, 134 Liquid discharge part 15, 35, 45, 55, 65 , 75, 95, 115, 135 Gas discharge part 81 Outer case 82 Inner case 83 Outer swirl chamber 84 Inner swirl chamber 85a, 85b Communication port 86 Opening / closing cylinder (introduction amount adjustment, open / close body)
87a, 87b Opening 88 Spring 96, 116, 136 Oil tank (storage tank)
100, 120, 140 Oil pump (liquid transfer pump)
102,122 Air pump (gas transfer pump)
141 Return passage 142 Venturi section

Claims (10)

  A gas-liquid separation device that separates liquid and gas using centrifugal force generated by swirling of a gas-liquid two-phase fluid, and is provided in a case having a cylindrical sealed shape and an outer peripheral portion of the case. An introduction part for introducing a gas-liquid two-phase fluid, a liquid discharge part provided at the lower part of the case for discharging a liquid separated from the gas-liquid two-phase fluid, and a gas-liquid two-phase fluid provided at the upper part of the case A gas-liquid separation device comprising: a gas discharge part for discharging the gas separated from the gas, wherein the introduction part has an introduction port having a long hole shape in the axial direction of the case.   2. The gas-liquid separator according to claim 1, wherein the inlet has an oval shape, a rectangular shape, or a shape in which a large number of circles are continuous.   3. The gas-liquid separator according to claim 1, wherein a plurality of the introduction parts are provided in a circumferential direction of the case. 4.   4. The gas-liquid separation device according to claim 3, wherein the plurality of introduction portions are provided at different positions in the axial direction of the case.   A gas-liquid separation device that separates liquid and gas using centrifugal force generated by swirling of a gas-liquid two-phase fluid, and is provided in a case having a cylindrical sealed shape and an outer peripheral portion of the case. An introduction portion for introducing a gas-liquid two-phase fluid; an introduction amount adjusting means for adjusting an introduction amount of the gas-liquid two-phase fluid introduced into the case from the introduction portion; A gas-liquid separation device comprising: a liquid discharge portion for discharging a liquid separated from a phase fluid; and a gas discharge portion for discharging a gas separated from the gas-liquid two-phase fluid provided at the upper portion of the case. .   6. The gas-liquid separator according to claim 5, wherein the case includes an outer case and an inner case arranged concentrically to form an outer swirl chamber and an inner swirl chamber, and the outer swirl chamber. The gas-liquid separator is provided with a communication port that communicates with the inner swirl chamber, and the introduction amount adjusting means includes an opening / closing body that adjusts a passage area of the communication port.   The gas-liquid separation device according to claim 6, wherein the opening / closing body changes a passage area of the communication port according to an introduction speed of a gas-liquid two-phase fluid introduced from the introduction portion into the case. A gas-liquid separator characterized by the above.   8. The gas-liquid separation device according to claim 1, wherein a liquid transport pump is connected to the liquid discharge section, and a gas transport pump is connected to the gas discharge section. 9. Gas-liquid separator.   9. The gas-liquid separation device according to claim 1, wherein a liquid transport pump is connected to the liquid discharge unit, and a return passage through which the gas discharge unit returns the liquid to the storage tank is connected. A gas-liquid separator characterized by.   10. The gas-liquid separation device according to claim 1, wherein an inner diameter of an upper portion and a lower portion of the case is set to be the same size, and the liquid discharge portion is provided at a lower outer periphery of the case. Gas-liquid separation device.

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