TWI414676B - Low friction and high life of the displacement device - Google Patents

Abstract

A durable low-fiction shifter device comprises a cylinder and a shifter movably connected in the cylinder. One end of the shifter is circumferentially disposed with a plurality of movable balls in contact with the interior of the cylinder. Thus, the shifter may use the support of linear bearing produced by the movable balls in the cylinder to reduce the frictional resistance between the shifter and the cylinder and enables the concentric axial motion between the shifter and the cylinder, thereby enhancing engine efficiency and increasing the engine life.

Description

Low friction and high life displacement device

The invention relates to a low friction and high life displacement device, in particular to a support mechanism for the displacement device to generate a linear bearing in a cylinder by using a plurality of movable balls, thereby reducing the frictional resistance between the displacement device and the cylinder, and at the same time The concentric axial movement between the displacement and the cylinder can be achieved to improve the efficiency of the engine and improve the life of the engine.

According to the current advanced countries, the Stirling engine is actively developed, mainly used in the Dish/Stirling Solar Power Generation System and the Combined Heat and Power System.

The basic structure of the conventional Stirling engine (as shown in Fig. 4) is that the main cylinder 6 and the power cylinder 7 are connected by the communication pipe 8. The piston in the master cylinder is generally referred to as a displacer 61. There is a gap between the displacer 61 and the cylinder bore 62, and the internal gas can move freely through the gap; and the shifter 61 is connected by airtight treatment. The rod 63 is coupled to the crank shaft 64, and the power piston 71 (Piston) and the power cylinder 7 are in an airtight state, and the power piston 71 is also coupled to the crank shaft 73 by the link 72, and the crank shaft 64 of the shifter 61 is The crankshaft 73 of the power piston 71 has a phase difference of 90 degrees.

The main technical bottleneck problem of the Stirling engine currently under development is the operating life of the system, and the most important life is caused by the poor displacement of the displacement device 61, because the Stirling engine is operated by both sides of the displacement device 61. The temperature difference is used as the power source. The left side is the hot end and the right side is the cold end. The hot regenerator in the displacement device 61 is a thermal energy register, which continuously acts as an endothermic and exothermic heat, causing temperature difference on both sides; In the dish type solar thermal power generation system, the dish reflection concentrating heat collecting, the temperature difference between the hot end and the cold end can be 700 ° C ~ 1500 ° C, the high temperature difference will cause the deformation of the components, after long-term use, the original shifter 61 The gap with the main cylinder 6 will not be maintained continuously, resulting in the generation of friction. The energy consumption of the friction reduces the operating efficiency of the system. In addition, the fines generated by the friction will block the heat and further increase the heat exchange efficiency. The dramatic reduction in the overall Stirling engine system results in severe performance variability.

In view of this, the inventors of this case have intensively discussed the above-mentioned problems of conventional inventions, and actively pursued solutions through years of experience in R&D and manufacturing of related industries. After long-term efforts in research and development, they finally succeeded in developing this book. Invented the "low friction and high life displacement device" to improve the problems of the conventional use.

The main object of the present invention is to enable the displacement device to use a plurality of movable balls to generate a linear bearing support in the cylinder, thereby reducing the frictional resistance between the displacement device and the cylinder, and at the same time maintaining a concentric axis between the displacement device and the cylinder. Move to the sport to achieve improved engine efficiency and improved engine life.

To achieve the above object, the present invention is a low friction, high life displacement device comprising: a cylinder; and a shifter movably coupled to the cylinder, wherein one end of the shifter is provided with a plurality of cylinder internals Contact the active ball.

In an embodiment of the invention, the cylinder system includes a fixing base and a cavity disposed on one side of the fixing seat, and the displacement device is disposed in the cavity in a gastight manner, and the displacement device is such that The moving unit generates displacement in the cavity.

In an embodiment of the invention, the cylinder is further provided with a power unit that is in airtight communication with the cavity through the fixing base, and the power unit is connected to the actuation unit.

In an embodiment of the invention, the cylinder, the power unit and the actuating unit may be disposed on a carrying unit.

In an embodiment of the present invention, the power unit includes a receiving portion that communicates with the cavity through the fixing seat, a piston that is disposed in the receiving portion in an airtight manner, and a connecting rod connected to the piston. And a crank shaft connected at one end to the actuating unit and connected to the connecting rod at the other end.

In an embodiment of the invention, one end of the shifter has a link, and the other end of the link has a crankshaft coupled to the actuating unit.

Please refer to the "1st, 2nd, and 3rd drawings" for a perspective view of the present invention, a schematic cross-sectional view of the present invention, and a schematic perspective view of the present invention. As shown in the figure, the present invention is a low friction and high life displacement device comprising at least one cylinder 1 and a displacement device 2.

The cylinder 1 mentioned above comprises a fixing base 11 and a cavity 12 provided on one side of the fixing base 11.

The displacement device 2 is movably coupled to the cavity 12 of the cylinder 1 in a gastight manner, and one end of the displacement device 2 is provided with a plurality of movable balls 21 which are in contact with the interior of the cavity 12 provided in the cylinder 1. If so, the above design constitutes a new low friction and high life displacement device.

When the present invention is used, the displacement device 2 can be connected to the actuator unit 3, so that the displacement unit 2 is displaced in the cavity 12 by the actuation unit 3, and the cylinder 1 is further provided with a transmission fixing seat 11 a power unit 4 in airtight communication with the cavity 12, and the power unit 4 is connected to the actuation unit 3, and The cylinder 1, the power unit 4 and the actuating unit 5 can be disposed on a carrying unit 5, and one end of the shifter 2 has a connecting rod 22, and the other end of the connecting rod 22 has an actuating unit The crankshaft 23 is connected to the crankshaft 23, and the power unit 4 includes a receiving portion 41 that communicates with the cavity 12 through the fixing base 11, a piston 42 that is movably disposed in the receiving portion 41, and a piston. 42 connecting connecting rod 43 and a crank shaft 44 whose one end is connected with the actuating unit 3 and the other end is connected with the connecting rod 43; thus, the displacement of the shifter 2 and the power unit 4 can drive the actuating unit 3, and when displaced When the device 2 reciprocates in the cavity 12 of the cylinder 1, the effect of the linear bearing can be caused by the rolling friction and support of the movable balls 21 at one end of the displacement device 2, so that the inner wall of the cavity 12 and the displacement device 2, both The gap can be permanently maintained to maintain the concentric motion between the displacement 2 and the cylinder 1, which can effectively reduce the energy loss of the friction force and prolong the service life.

In summary, the low friction and high life displacement device of the invention can effectively improve various disadvantages of the conventional use, and the displacement device can use the majority of the movable balls to generate the support of the linear bearing in the cylinder, thereby reducing the friction between the displacement device and the cylinder. Resistance, and at the same time, can maintain concentric axial movement between the displacement device and the cylinder, thereby achieving the effect of improving the operating efficiency of the engine and improving the life of the engine; thereby making the invention more progressive, more practical, and more suitable for consumers. It must have met the requirements of the invention patent application and filed a patent application according to law.

However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; therefore, the simple equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the invention are modified. All should remain within the scope of the invention patent.

(this part of the creation)

1. . . cylinder

11. . . Fixed seat

12. . . Cavity

2. . . Displacer

twenty one. . . Active ball

twenty two. . . link

twenty three. . . Crankshaft

3. . . Actuating unit

4. . . Power unit

41. . . Housing

42. . . piston

43. . . link

44. . . Crankshaft

5. . . Bearer unit

(customized part)

6. . . Main cylinder

61. . . Displacer

62. . . Cylinder block

63. . . link

64. . . Crankshaft

7. . . Power cylinder

71. . . Power piston

72. . . link

73. . . Crankshaft

8. . . Connecting pipe

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view showing the state of the cross section of the present invention.

Fig. 3 is a perspective view showing the appearance of the present invention.

Figure 4 is a schematic view of the profile state of the conventional use.

1. . . cylinder

11. . . Fixed seat

12. . . Cavity

2. . . Displacer

twenty one. . . Active ball

twenty two. . . link

Claims (6)

A low-friction and high-life displacement device includes: a cylinder; and a displacement device that is movably coupled to the cylinder, and one end of the displacement device is provided with a plurality of movable balls that are in contact with the interior of the cylinder. The low friction and high life displacement device according to the first aspect of the patent application, wherein the cylinder system comprises a fixing base and a cavity disposed on one side of the fixing seat, and the displacement device is airtight Disposed in the cavity, and the displacement device is displaced by the actuation unit in the cavity. The low-friction and high-life shifter device according to the second aspect of the patent application, wherein the cylinder is further provided with a power unit that communicates with the cavity through the fixed seat, and the power unit is connected to the actuating unit. . The low friction and high life displacement device according to claim 3, wherein the cylinder, the power unit and the actuating unit are disposed on a carrying unit. The low-friction and high-life shifter device according to the third aspect of the patent application, wherein the power unit includes a receiving portion that communicates with the cavity through the fixing seat, and is disposed in the airtight manner in the receiving portion. The piston in the piston, the connecting rod connected to the piston, and the crank shaft connected at one end to the actuating unit and connected to the connecting rod at the other end. A low friction and high life displacement device according to the second aspect of the patent application, wherein one end of the displacement device has a connecting rod, and the other end of the connecting rod has a crank shaft connected to the actuating unit. .