CN111120169A - Connecting joint for automobile fuel injector - Google Patents
Connecting joint for automobile fuel injector Download PDFInfo
- Publication number
- CN111120169A CN111120169A CN201911148156.3A CN201911148156A CN111120169A CN 111120169 A CN111120169 A CN 111120169A CN 201911148156 A CN201911148156 A CN 201911148156A CN 111120169 A CN111120169 A CN 111120169A
- Authority
- CN
- China
- Prior art keywords
- fuel injector
- fixing
- joint
- sealing
- pressure regulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 53
- 230000000670 limiting effect Effects 0.000 claims abstract description 25
- 230000001105 regulatory effect Effects 0.000 claims abstract description 19
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 3
- 235000011613 Pinus brutia Nutrition 0.000 description 3
- 241000018646 Pinus brutia Species 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/004—Joints; Sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/002—Arrangement of leakage or drain conduits in or from injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/803—Fuel injection apparatus manufacture, repair or assembly using clamp elements and fastening means; e.g. bolts or screws
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention relates to the technical field of automobile fuel injectors, and discloses a connecting joint for an automobile fuel injector, wherein a pressure regulating seat is fixedly connected to the upper surface of a fuel injector main body, an oil return pipe is fixedly connected to the upper surface of the pressure regulating seat, a needle valve is arranged at one end of the fuel injector main body, an oil inlet pipe joint is fixedly connected to the side surface of the fuel injector main body, a sealing component is arranged at one end of the oil inlet pipe joint, a fixing component is connected to one side of the sealing component, a first locking nut is arranged on the side surface of the pressure regulating seat, the joint can be limited by using a first limiting rod and a second limiting rod during connection, the loosening of an external pipeline is avoided, the joint can be fixed under the action of a fixing rod and a fixing bolt, the phenomena of oil leakage and loosening at the joint for a long time are avoided, and the operation is, saves a large amount of time and brings beneficial effects to the use of the automobile fuel injector.
Description
Technical Field
The invention relates to the technical field of automobile fuel injectors, in particular to a connecting joint for an automobile fuel injector.
Background
The automobile oil sprayer is a precise device with very high processing precision, and is required to have a large dynamic flow range, strong anti-blocking and anti-pollution capabilities and good atomization performance, and the automobile oil sprayer receives an oil injection pulse signal sent by an ECU (electronic control Unit) and accurately controls the fuel injection quantity.
When present automobile fuel injector is connecting, the operation is all comparatively troublesome, all can waste a large amount of time when connecting, and the leakproofness is not good after connecting moreover, and is difficult fixed when fixed, uses for a long time down, and the oil leak can all appear in automobile fuel injector joint department and the phenomenon that takes off, has influenced automobile fuel injector's normal use. Accordingly, one skilled in the art has provided a connection fitting for a fuel injector for a vehicle that addresses the problems set forth in the background above.
Disclosure of Invention
The invention aims to provide a connecting joint for an automobile fuel injector, which solves the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a attach fitting for automobile fuel injector, includes sprayer main part and pressure regulating seat, the last fixed surface of sprayer main part is connected with the pressure regulating seat, the last fixed surface of pressure regulating seat is connected with returns the oil pipe, the one end of sprayer main part is provided with the needle valve, the side surface fixedly connected with oil feed pipe joint of sprayer main part, the one end that the oil feed pipe was connected is provided with seal assembly, one side of seal assembly is connected with fixed subassembly, the side surface of pressure regulating seat is provided with first lock nut, the inside of sprayer main part is provided with the ejector pin, the fixed surface of needle valve installs second lock nut, the inside that the oil feed pipe was connected is provided with the gap filter core.
As a still further scheme of the invention: the sealing assembly comprises a fixing part, a sealing ring, a first sealing gasket and a second sealing gasket, wherein the first sealing gasket is fixedly arranged on one side of the fixing part, the second sealing gasket is fixedly connected to one side of the first sealing gasket, and the sealing ring is arranged on one side of the second sealing gasket.
As a still further scheme of the invention: the diameter of mounting is greater than the diameter that first sealed pad and second were sealed, the material that first sealed pad and second were sealed is rubber.
As a still further scheme of the invention: the fixing assembly comprises a fixing rod, a first limiting rod, a sealing cover, a fixing bolt and a second limiting rod, the fixing bolt is arranged at the side end of the fixing rod, the first limiting rod is connected to one side of the fixing rod, the sealing cover is connected to one side of the first limiting rod, and the fixing bolt is connected to one side of the sealing cover.
As a still further scheme of the invention: the clamping grooves matched with the fixing bolts are formed in one side of each fixing rod, the number of the fixing rods is two, and the width of each fixing rod is larger than that of each first limiting rod.
As a still further scheme of the invention: the material of first gag lever post and second gag lever post is the stainless steel, the width of sealed cowling is greater than the width that the oil feed coupling was connected.
As a still further scheme of the invention: the material of pressure regulating seat is stainless steel, it all is provided with the safety cover to return oil pipe and needle valve's surface.
Compared with the prior art, the invention has the beneficial effects that:
through the use of mounting, can tentatively fix external pipeline and oil feed pipe joint, increase the stability between oil feed pipe joint and the external pipeline, at the sealing washer, under the sealed effect of pad and second, can improve the leakproofness between external pipeline and the oil feed pipe joint, avoid the oil leak of joint department, the convenience has been brought for the use of sprayer, use through first gag lever post and second gag lever post, can be when connecting, spacing to the joint, avoid external pipeline pine to appear taking off, under the effect of dead lever and fixing bolt, can fix joint department, avoid long-time joint department the phenomenon that oil leak and pine take off to appear, easy operation is convenient, a large amount of time has been saved, beneficial effect has been brought to the use of automobile fuel sprayer.
Drawings
FIG. 1 is a schematic view of a connection fitting for a fuel injector for a motor vehicle;
FIG. 2 is a schematic view showing an internal structure of a connection joint for a fuel injector of an automobile;
FIG. 3 is a schematic view of a seal assembly in a connection fitting for a fuel injector for a motor vehicle;
FIG. 4 is a schematic structural view of a fixing assembly in a connection joint for a fuel injector of an automobile;
fig. 5 is an enlarged view of a portion a in fig. 4.
In the figure: 1. a fuel injector body; 2. a pressure regulating seat; 3. a seal assembly; 31. a fixing member; 32. a seal ring; 33. a first gasket; 34. a second gasket; 4. a needle valve; 5. an oil inlet pipe joint; 6. an oil return pipe; 7. a fixing assembly; 71. fixing the rod; 72. a first limit rod; 73. a sealing cover; 74. fixing the bolt; 75. a second limiting rod; 8. a first lock nut; 9. a slit filter element; 10. a top rod; 11. a second lock nut.
Detailed Description
Referring to fig. 1 to 5, in an embodiment of the present invention, a connection joint for an automobile fuel injector includes a fuel injector main body 1 and a pressure regulating seat 2, the pressure regulating seat 2 is fixedly connected to an upper surface of the fuel injector main body 1, an oil return pipe 6 is fixedly connected to an upper surface of the pressure regulating seat 2, a needle valve 4 is disposed at one end of the fuel injector main body 1, an oil inlet pipe joint 5 is fixedly connected to a side surface of the fuel injector main body 1, a sealing assembly 3 is disposed at one end of the oil inlet pipe joint 5, the sealing assembly 3 includes a fixing member 31, a sealing ring 32, a first sealing gasket 33 and a second sealing gasket 34, a first sealing gasket 33 is fixedly mounted at one side of the fixing member 31, a second sealing gasket 34 is fixedly connected to one side of the first sealing gasket 33, a sealing ring 32 is disposed at one side of the second sealing gasket 34, a diameter of the fixing member 31 is greater than diameters of the first, the material of pressure regulating seat 2 is the stainless steel, the surface that returns oil pipe 6 and needle valve 4 all is provided with the safety cover, mounting 31 can tentatively fix external pipeline and oil inlet pipe joint 5, increase the stability between oil inlet pipe joint 5 and the external pipeline, the sealed pad 34 of one side fixedly connected with second of first sealed pad 33, the sealed one side of 34 of second pad is provided with sealing washer 32, at sealing washer 32, under the sealed effect of pad 34 of first sealed pad 33 and second, can seal joint department, under multiple sealing action, greatly increased the leakproofness of junction, can avoid joint department oil leak under long-time use, the convenience has been brought for the use of sprayer.
In fig. 4 and 5: one side of the sealing component 3 is connected with a fixing component 7, the side surface of the pressure regulating seat 2 is provided with a first lock nut 8, the inside of the fuel injector main body 1 is provided with a mandril 10, the outer surface of the needle valve 4 is fixedly provided with a second lock nut 11, the inside of the fuel inlet pipe joint 5 is provided with a gap filter element 9, the fixing component 7 comprises a fixing rod 71, a first limiting rod 72, a sealing cover 73, a fixing bolt 74 and a second limiting rod 75, the side end of the fixing rod 71 is provided with the fixing bolt 74, one side of the fixing rod 71 is connected with the first limiting rod 72, one side of the first limiting rod 72 is connected with the sealing cover 73, one side of the sealing cover 73 is connected with the fixing bolt 74, one side of the fixing rod 71 is provided with a clamping groove matched with the fixing bolt 74, the number of the fixing rods 71 is two, the width of the fixing rod 71 is larger than that of the first limiting rod, the width of sealed cowling 73 is greater than the width that advances oil pipe head 5, first gag lever post 72 and second gag lever post 75 have certain limiting displacement to external pipeline, sealed cowling 73 has certain sealing action to advancing oil pipe head 5, later under fixing bolt 74's effect, fix dead lever 71, later just fixed external pipeline and advance oil pipe head 5, can fix joint department, avoid long-time joint department the phenomenon that oil leak and pine take off to appear, and easy operation is convenient, a large amount of time has been saved, beneficial effect has been brought to automobile fuel injector's use.
The working principle of the invention is as follows: when in use, the oil return pipe 6 has a certain oil return effect to prevent the pressure inside the oil injector from being too high, when in connection, an external pipeline is introduced into the oil inlet pipe joint 5, the first limiting rod 72 and the second limiting rod 75 are made of stainless steel, the first limiting rod 72 and the second limiting rod 75 have a certain limiting effect on the external pipeline, the sealing cover 73 has a certain sealing effect on the oil inlet pipe joint 5, then the fixing rod 71 is fixed under the action of the fixing bolt 74, then the external pipeline and the oil inlet pipe joint 5 are fixed, the joint can be fixed, the phenomena of oil leakage and loosening at the joint for a long time are avoided, the operation is simple and convenient, a large amount of time is saved, and beneficial effects are brought to the use of the automobile oil injector, the first sealing gasket 33 is fixedly installed on one side of the fixing member 31, the fixing member 31 can preliminarily fix the external pipeline and the oil inlet pipe joint 5, increase the stability between oil pipe joint 5 and the external pipeline, the sealed pad 34 of one side fixedly connected with second of first sealed pad 33, one side of the sealed pad 34 of second is provided with sealing washer 32, under the effect of sealing washer 32, the sealed pad 33 of first sealed pad and the sealed pad 34 of second, can seal joint department, under multiple sealing action, greatly increased the leakproofness of junction, can avoid joint department oil leak under long-time the use, brought the convenience for the use of sprayer.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (8)
1. The utility model provides a connector for automobile fuel injector, includes sprayer main part (1) and pressure regulating seat (2), its characterized in that, the last fixed surface of sprayer main part (1) is connected with pressure regulating seat (2), the last fixed surface of pressure regulating seat (2) is connected with returns oil pipe (6), the one end of sprayer main part (1) is provided with needle valve (4), the side surface fixed connection of sprayer main part (1) has oil feed pipe joint (5), the one end of oil feed pipe joint (5) is provided with seal assembly (3), one side of seal assembly (3) is connected with fixed subassembly (7), the side surface of pressure regulating seat (2) is provided with first lock nut (8), the inside of sprayer main part (1) is provided with ejector pin (10), the surface fixed mounting of needle valve (4) has second lock nut (11), and a gap filter element (9) is arranged in the oil inlet pipe joint (5).
2. The connecting joint for the fuel injector of the automobile according to claim 1, characterized in that the sealing assembly (3) comprises a fixing piece (31), a sealing ring (32), a first sealing gasket (33) and a second sealing gasket (34), the first sealing gasket (33) is fixedly installed on one side of the fixing piece (31), the second sealing gasket (34) is fixedly connected on one side of the first sealing gasket (33), and the sealing ring (32) is arranged on one side of the second sealing gasket (34).
3. The connection joint for a fuel injector of an automobile according to claim 2, characterized in that the diameter of the fixing member (31) is larger than the diameters of the first gasket (33) and the second gasket (34), and the first gasket (33) and the second gasket (34) are both made of rubber.
4. The connecting joint for the automobile fuel injector according to claim 1, characterized in that the fixing assembly (7) comprises a fixing rod (71), a first limiting rod (72), a sealing cover (73), a fixing bolt (74) and a second limiting rod (75), the fixing bolt (74) is arranged at the side end of the fixing rod (71), the first limiting rod (72) is connected to one side of the fixing rod (71), the sealing cover (73) is connected to one side of the first limiting rod (72), and the fixing bolt (74) is connected to one side of the sealing cover (73).
5. The connecting joint for the automobile fuel injector as claimed in claim 4, characterized in that one side of the fixing rod (71) is provided with a clamping groove matched with the fixing bolt (74).
6. The connection joint for a fuel injector of an automobile as claimed in claim 5, characterized in that the number of the fixing rods (71) is two, and the width of the fixing rods (71) is greater than the width of the first stopper rod (72).
7. The connecting joint for the automobile fuel injector according to claim 4, characterized in that the first limiting rod (72) and the second limiting rod (75) are both made of stainless steel, and the width of the sealing cover (73) is larger than that of the fuel inlet pipe joint (5).
8. The connecting joint for the automobile fuel injector according to claim 1, characterized in that the pressure regulating seat (2) is made of stainless steel, and protective covers are arranged on the outer surfaces of the oil return pipe (6) and the needle valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911148156.3A CN111120169B (en) | 2019-11-21 | 2019-11-21 | Connecting joint for automobile fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911148156.3A CN111120169B (en) | 2019-11-21 | 2019-11-21 | Connecting joint for automobile fuel injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111120169A true CN111120169A (en) | 2020-05-08 |
| CN111120169B CN111120169B (en) | 2021-03-12 |
Family
ID=70496129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911148156.3A Active CN111120169B (en) | 2019-11-21 | 2019-11-21 | Connecting joint for automobile fuel injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111120169B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0754854A2 (en) * | 1995-07-21 | 1997-01-22 | Man Nutzfahrzeuge Ag | Injection valve for compression ignition engines |
| CN2830684Y (en) * | 2005-08-25 | 2006-10-25 | 周书田 | Extended multi-porous oil sprayer |
| CN201513272U (en) * | 2009-09-18 | 2010-06-23 | 广东力源液压机械有限公司 | Pressure regulating type oil injection nozzle |
| US20120153612A1 (en) * | 2010-12-17 | 2012-06-21 | Veritas Ag | Quick-release coupling for fluid lines |
| CN202937393U (en) * | 2012-10-12 | 2013-05-15 | 福建省莆田市中涵机动力有限公司 | Combined common rail oil sprayer body |
| CN203441659U (en) * | 2013-07-31 | 2014-02-19 | 山东鑫亚工业股份有限公司 | Oil injector assembly embedded into cylinder cover of diesel engine and used for injecting and returning oil |
| CN105986946A (en) * | 2015-03-16 | 2016-10-05 | 德尔福技术有限公司 | Arrangement for retaining a fuel injector to a fuel rail socket |
-
2019
- 2019-11-21 CN CN201911148156.3A patent/CN111120169B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0754854A2 (en) * | 1995-07-21 | 1997-01-22 | Man Nutzfahrzeuge Ag | Injection valve for compression ignition engines |
| CN2830684Y (en) * | 2005-08-25 | 2006-10-25 | 周书田 | Extended multi-porous oil sprayer |
| CN201513272U (en) * | 2009-09-18 | 2010-06-23 | 广东力源液压机械有限公司 | Pressure regulating type oil injection nozzle |
| US20120153612A1 (en) * | 2010-12-17 | 2012-06-21 | Veritas Ag | Quick-release coupling for fluid lines |
| CN202937393U (en) * | 2012-10-12 | 2013-05-15 | 福建省莆田市中涵机动力有限公司 | Combined common rail oil sprayer body |
| CN203441659U (en) * | 2013-07-31 | 2014-02-19 | 山东鑫亚工业股份有限公司 | Oil injector assembly embedded into cylinder cover of diesel engine and used for injecting and returning oil |
| CN105986946A (en) * | 2015-03-16 | 2016-10-05 | 德尔福技术有限公司 | Arrangement for retaining a fuel injector to a fuel rail socket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111120169B (en) | 2021-03-12 |
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