CN110131084A - A kind of valve rod couple high pressure common rail injector - Google Patents
A kind of valve rod couple high pressure common rail injector Download PDFInfo
- Publication number
- CN110131084A CN110131084A CN201910478220.8A CN201910478220A CN110131084A CN 110131084 A CN110131084 A CN 110131084A CN 201910478220 A CN201910478220 A CN 201910478220A CN 110131084 A CN110131084 A CN 110131084A
- Authority
- CN
- China
- Prior art keywords
- valve
- stem sleeve
- valve stem
- valve rod
- oil
- 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 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 38
- 229910052742 iron Inorganic materials 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 206010008469 Chest discomfort Diseases 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
-
- 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
- F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
A kind of valve rod couple high pressure common rail injector, including valve body, valve rod, valve stem sleeve, pressure compensation opening, valve stem sleeve bore are equipped on valve body, valve stem sleeve is mounted in valve stem sleeve bore by engagement sleeves, the upper end face contact of shaft shoulder seat and pressure compensation opening, the aperture of pressure compensation opening is greater than the outer diameter of engagement sleeves, and the lower end of fuel feed hole is communicated with pressure compensation opening, the inner hole and valve rod couple premise clearance fit of valve stem sleeve, are equipped with sealing ring between pressure compensation opening and valve stem sleeve outer diameter.It is replaceable fit structure by valve rod and valve stem sleeve couple, between valve stem sleeve and valve body, when the fit clearance between valve rod and valve stem sleeve is because wearing overproof, can directly replace valve stem sleeve and valve rod, the working service cost of fuel injector can be greatly reduced.Pressure compensation opening, which is arranged, can eliminate the compressive deformation of valve stem sleeve inner hole, and lead to the fit clearance for increasing valve rod and matching hole.Sealing ring is set between pressure compensation opening and valve stem sleeve outer diameter, the purpose is to prevent from leaking.
Description
Technical field:
The invention patent relates to use for diesel engine electric-control common-rail type fuel injectors.
Background technique:
Prior art injector assembly structure is as shown in Figure 1 and Figure 2, it includes valve body 1, valve rod 2, valve stem sleeve 3, throttling body
4, ball sealer 5, iron-absorbing base 6, suction iron 7, electromagnetic valve components 8, needle pressure spring 91, double guide sleeves 92, oil spout needle 93, oil spout are even
Part set 94 and locking cap 95, be equipped on valve body 1 fuel feed hole 11, upper outer oil input channel 12, oblique oil outlet 13, valve rod matching hole 14,
Lower outer oil input channel 15, pressure release oil duct 16 and lower pilot hole 17, valve rod 2 are cooperated with the valve rod that gap fiting mode is mounted on valve body 1
In hole 14.
It is couple premise clearance fit structure between valve rod 2 and valve body 1, when valve rod 2 in this high pressure common rail injector
After cooperating precision to fail because of abrasion between valve rod matching hole 14, fuel injector will integrally be scrapped.Simultaneously as valve rod 2
It is high pressure oil between top and valve rod matching hole 14, the valve rod matching hole 14 of valve body 1 can make valve under high pressure effect at work
The borehole enlargement of bar matching hole 14 deforms, so that fit clearance increases between valve rod 2 and valve rod matching hole 14, entire oil spout
Sealing performance is not good for device, is easy to produce the defect of injection pressure decline.
Summary of the invention:
The object of the present invention is to provide a kind of valve rod couple high pressure common rail injectors, wherein only valve rod and valve stem sleeve
For vulnerable part, and valve body and other parts are reusable, meanwhile, it is the cooperation of no pressure difference between valve rod and valve stem sleeve, eliminates
The compressive deformation of the two matching pair and the defect for causing fit clearance to increase is sprayed to improve the sealing performance of fuel injector
Oil pressure is stablized.
The technical solution adopted by the present invention is that:
A kind of valve rod couple high pressure common rail injector, it is characterized in that: including valve body 1, valve rod 2, valve stem sleeve 3, throttling body
4, ball sealer 5, iron-absorbing base 6, suction iron 7, electromagnetic valve components 8, needle pressure spring 91, double guide sleeves 92, oil spout needle 93, oil spout are even
Part set 94 and locking cap 95, be equipped on valve body 1 fuel feed hole 11, upper outer oil input channel 12, oblique oil outlet 13, lower outer oil input channel 15,
Pressure release oil duct 16, lower pilot hole 17, pressure compensation opening 18, valve stem sleeve bore 19, the valve stem sleeve 3 include shaft shoulder seat 31, cooperation
Set 32 and fuel feed hole 33, valve stem sleeve 3 are mounted in valve stem sleeve bore 19 by engagement sleeves 32, are between the two clearance fit, axis
The upper end face contact of shoulder seat 31 and pressure compensation opening 18, the aperture of pressure compensation opening 18 are greater than the outer diameter of engagement sleeves 32, and oil inlet
The lower end in hole 33 is communicated with pressure compensation opening 18, the inner hole and 2 couple premise clearance fit of valve rod of valve stem sleeve 3, flat in pressure
It weighs and is equipped with sealing ring 31 between hole 18 and 3 outer diameter of valve stem sleeve, throttling body 4, ball sealer are sequentially arranged on the upper surface of valve stem sleeve 3
5, iron-absorbing base 6, suction iron 7 and electromagnetic valve components 8 are inhaled iron 7 and are sleeved in iron-absorbing base 6, inhale the top surface of iron 7 by electromagnetism valve portion
Reset spring 81 in part 8 is oppressed, and ball sealer 5 is pushed down in the mandril bottom surface for inhaling iron 7, and needle pressure spring 91 and double guide sleeves 92 are successively
It is sleeved on the lower section of valve rod 2, needle pressure spring 91 is located in lower pilot hole 17, the lower end of needle pressure spring 91 and lower 92 top surface of guide sleeve
Contact, oil nozzle needle 93 are sleeved in resistance oil nozzle sleeve 94, and the oil nozzle couple that oil nozzle needle 93 and resistance oil nozzle sleeve 94 form passes through locking cap
95 are rotated in the lower end of valve body 1.
Further, elastic ring 96 is equipped on the upper surface of needle pressure spring 91.
Due to this premise clearance fit by valve rod 2 directly with valve body 1, valve rod 2 is changed to by valve stem sleeve 3 and is mounted on valve body
On 1, it is replaceable fit structure between valve stem sleeve 3 and valve body 1 that valve rod 2 and valve stem sleeve 3, which are couple premise clearance fit, when
When fit clearance between valve rod 2 and valve stem sleeve 3 is overproof because of abrasion, valve stem sleeve 3 and valve rod 2 can be directly replaced, can make to spray
Oily device restores precision, only can scrap valve stem sleeve 3 and valve rod 2, if taking repair scheme, valve rod 2 be can also be used, as long as reconditioning valve rod
The inner hole of set 3, other parts may be by, and reduce the working service cost of fuel injector.
On the other hand, due to being provided with pressure compensation opening 18, so that the inner hole of valve stem sleeve 3 and outer diameter are in same pressure shape
State eliminates the compressive deformation because of high pressure oil to 3 inner hole of valve stem sleeve, and leads to the fit clearance for increasing valve rod 2 and matching hole.?
Sealing ring 31 is equipped between 3 outer diameter of pressure compensation opening 18 and valve stem sleeve, the purpose is to prevent high pressure oil from 3 outer diameter of valve stem sleeve and valve
The cooperation section of rod set bore 19 leaks.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of existing fuel injector；
Fig. 2 is the structural schematic diagram of valve body in Fig. 1；
Fig. 3 is structural schematic diagram of the invention；
Fig. 4 is the structural schematic diagram of valve body；
Fig. 5 is the structural schematic diagram of valve stem sleeve；
In figure: 1- valve body；2- valve rod；3- valve stem sleeve；4- throttling body；5- ball sealer；6- iron-absorbing base；7- inhales iron；8- electricity
Magnet valve component；91- needle pressure spring；The bis- guide sleeves of 92-；93- oil spout needle；94- oil injection coupling set；95- locking cap；96- elasticity
Circle；11- high pressure fuel feed hole；The upper outer oil duct of 12-；13- inclined oil hole of air；14- valve rod matching hole；Outer oil input channel under 15-；16- pressure release oil
Road；Pilot hole under 17-；18- pressure compensation opening；19- valve stem sleeve bore；31- shaft shoulder seat；32- engagement sleeves；33- fuel feed hole.
Specific embodiment:
The specific embodiment illustrated the present invention with reference to the accompanying drawing:
A kind of valve rod couple high pressure common rail injector, shown in Fig. 3-Fig. 5, including valve body 1, valve rod 2, valve stem sleeve 3, throttling
Body 4, iron-absorbing base 6, inhales iron 7, electromagnetic valve components 8, needle pressure spring 91, double guide sleeves 92, oil spout needle 93, oil spout at ball sealer 5
Couple set 94 and locking cap 95, are equipped with fuel feed hole 11, upper outer oil input channel 12, oblique oil outlet 13, lower outer oil input channel on valve body 1
15, pressure release oil duct 16, lower pilot hole 17, pressure compensation opening 18, valve stem sleeve bore 19, the valve stem sleeve 3 include shaft shoulder seat 31, match
Trap 32 and fuel feed hole 33, valve stem sleeve 3 are mounted in valve stem sleeve bore 19 by engagement sleeves 32, are between the two clearance fit,
The upper end face contact of shaft shoulder seat 31 and pressure compensation opening 18, the aperture of pressure compensation opening 18 are greater than the outer diameter of engagement sleeves 32, and into
The lower end of oilhole 33 is communicated with pressure compensation opening 18, the inner hole and 2 couple premise clearance fit of valve rod of valve stem sleeve 3, in pressure
It is equipped with sealing ring 31 between 3 outer diameter of balance hole 18 and valve stem sleeve, throttling body 4, sealing are sequentially arranged on the upper surface of valve stem sleeve 3
Ball 5, inhales iron 7 and electromagnetic valve components 8 at iron-absorbing base 6, inhales iron 7 and is sleeved in iron-absorbing base 6, inhales the top surface of iron 7 by solenoid valve
Reset spring 81 in component 8 is oppressed, and ball sealer 5 is pushed down in the mandril bottom surface for inhaling iron 7, elastic ring 96, needle pressure spring 91 and double
Guide sleeve 92 is successively sleeved on the lower section of valve rod 2, and elastic ring 96 and needle pressure spring 91 are located in lower pilot hole 17, needle pressure spring 91
Lower end contacted with lower 92 top surface of guide sleeve, oil nozzle needle 93 is sleeved in resistance oil nozzle sleeve 94, oil nozzle needle 93 and 94 groups of resistance oil nozzle sleeve
At oil nozzle couple be rotated in the lower end of valve body 1 by locking cap 95.
Its work is as follows in principle:
When 8 power loss of electromagnetic valve components, reset spring 81 pushes down ball sealer 5 by inhaling iron 7, and ball sealer 5 is made to close section
The relief hole of 4 top surface of fluid, high pressure oil enters the top of valve rod 2 from fuel feed hole 11, upper outer oil input channel 12, oblique oil outlet 13 at this time
High pressure chest, while high pressure oil enters the oil spout high pressure enclosed by oil nozzle needle 93 and resistance oil nozzle sleeve 94 by lower outer oil input channel 15
Chamber acts on oil nozzle needle 93, due to valve rod 2 upper diameter be greater than oil nozzle needle 93 diameter, valve rod 2 downwardly against
Oil nozzle needle 93 is in fuel injector and closes shape；When electromagnetic valve components 8 must be electric, the elastic force that iron 7 overcomes reset spring 81 is inhaled
Move up, ball sealer 5 by from throttling 4 top surface of body relief hole enter high pressure oil open, at this point, high pressure oil from fuel feed hole 11, on
Relief hole and pressure release oil duct after outer oil input channel 12, oblique oil outlet 13 enter the top high-voltage chamber of valve rod 2, from throttling 4 top surface of body
17 communicate, and flow out from relief hole pressure release, and enter from the high pressure oil of lower outer oil input channel 15 and enclosed by oil nozzle needle 93 and resistance oil nozzle sleeve 94
The oil spout high pressure chest of synthesis, acts on oil nozzle needle 93, since the top of valve rod 2 is in pressure release state, oil nozzle needle 93
With valve rod 2 to movement under high pressure oil effect, oil nozzle needle 93 is opened at this time, and fuel injector is made to be in oil spout state.This structure
Fuel injector after being passed through high pressure oil, since the shaft shoulder seat 31 of valve stem sleeve 3,32 upper section of engagement sleeves are all in same pressure environment shape
Under state, therefore, eliminates and increase valve rod 2 and cooperation due to compressive deformation of the high pressure oil to valve rod matching hole increases in the prior art
The fit clearance in hole.Between 3 outer diameter of pressure compensation opening 18 and valve stem sleeve be equipped with sealing ring 31, the purpose is to prevent high pressure oil from
The cooperation section of 3 outer diameter of valve stem sleeve and valve stem sleeve bore 19 leaks.
There are many embodiments of the present invention, do not enumerate one by one herein, as long as taking valve rod 2 and 3 couple of valve stem sleeve, and make
It is all the functions alternative such as present invention that valve rod couple, which is in all technical solutions to work under isobaric environment, is belonged to of the invention
Protection scope.
Claims (2)
1. a kind of valve rod couple high pressure common rail injector, it is characterized in that: include valve body 1, valve rod 2, valve stem sleeve 3, throttling body 4,
Ball sealer 5, inhales iron 7, electromagnetic valve components 8, needle pressure spring 91, double guide sleeves 92, oil spout needle 93, oil injection coupling at iron-absorbing base 6
Set 94 and locking cap 95 are equipped with fuel feed hole 11, upper outer oil input channel 12, oblique oil outlet 13, pressure compensation opening 14, valve on valve body 1
Rod set bore 15, lower outer oil input channel 16, pressure release oil duct 17, relief hole 18 and lower pilot hole 19, the valve stem sleeve 3 include shaft shoulder seat
31, engagement sleeves 32 and fuel feed hole 33, valve stem sleeve 3 are mounted in valve stem sleeve bore 15 by engagement sleeves 32, are between the two gap
Cooperation, the upper end face contact of shaft shoulder seat 31 and pressure compensation opening 14, the aperture of pressure compensation opening 14 are greater than the outer diameter of engagement sleeves 32,
And the lower end of fuel feed hole 33 is communicated with pressure compensation opening 14, the inner hole and 2 couple premise clearance fit of valve rod of valve stem sleeve 3,
Between 3 outer diameter of pressure compensation opening 14 and valve stem sleeve be equipped with sealing ring 31, be sequentially arranged on the upper surface of valve stem sleeve 3 throttling body 4,
Ball sealer 5, inhales iron 7 and electromagnetic valve components 8 at iron-absorbing base 6, inhales iron 7 and is sleeved in iron-absorbing base 6, inhales the top surface of iron 7 by electricity
Reset spring 81 in magnet valve component 8 is oppressed, and ball sealer 5, needle pressure spring 91 and double guide sleeves are pushed down in the mandril bottom surface for inhaling iron 7
92 are successively sleeved on the lower section of valve rod 2, and needle pressure spring 91 is located in lower pilot hole 19, the lower end of needle pressure spring 91 and lower guide sleeve
The contact of 92 top surfaces, oil nozzle needle 93 are sleeved in resistance oil nozzle sleeve 94, and the oil nozzle couple that oil nozzle needle 93 and resistance oil nozzle sleeve 94 form passes through
Locking cap 95 is rotated in the lower end of valve body 1.
2. valve rod couple high pressure common rail injector according to claim 1, it is characterized in that: in the upper surface of needle pressure spring 91
It is equipped with elastic ring 96.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910478220.8A CN110131084B (en) | 2019-06-03 | 2019-06-03 | Valve rod coupling type high-pressure common rail fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910478220.8A CN110131084B (en) | 2019-06-03 | 2019-06-03 | Valve rod coupling type high-pressure common rail fuel injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110131084A true CN110131084A (en) | 2019-08-16 |
| CN110131084B CN110131084B (en) | 2024-05-28 |
Family
ID=67579941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910478220.8A Active CN110131084B (en) | 2019-06-03 | 2019-06-03 | Valve rod coupling type high-pressure common rail fuel injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110131084B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529317A (en) * | 2019-08-23 | 2019-12-03 | 一汽解放汽车有限公司 | A kind of fuel injection valve valve pocket assembly |
| CN111594368A (en) * | 2020-04-17 | 2020-08-28 | 莆田市宏业精密机械有限公司 | Area compensation manufacturing method of pressure balance oil nozzle and pressure balance oil nozzle manufactured by same |
| CN114483383A (en) * | 2022-01-28 | 2022-05-13 | 刘义亭 | Gas fuel injector |
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|---|---|---|---|---|
| US20120103308A1 (en) * | 2010-10-28 | 2012-05-03 | Caterpillar, Inc. | Two-Way Valve Orifice Plate for a Fuel Injector |
| EP2778386A1 (en) * | 2013-03-13 | 2014-09-17 | Delphi International Operations Luxembourg S.à r.l. | Control valve assembly and fuel injector incorporating a control valve assembly |
| CN104728002A (en) * | 2015-03-26 | 2015-06-24 | 常州博瑞油泵油嘴有限公司 | High pressure common rail oil sprayer without static leakage |
| CN204458154U (en) * | 2015-03-09 | 2015-07-08 | 龙口龙泵燃油喷射有限公司 | A kind of pressure balance type common-rail injector |
| EP2947306A1 (en) * | 2014-05-22 | 2015-11-25 | Continental Automotive GmbH | Injector for injecting fluid |
| CN105673282A (en) * | 2016-04-08 | 2016-06-15 | 龙口龙泵燃油喷射有限公司 | Pressure-balanced valve type common-rail fuel injector |
| CN206352540U (en) * | 2017-01-18 | 2017-07-25 | 哈尔滨工程大学 | Two-way oil-feed orifice-plate type electric-controlled fuel injector |
| CN206386211U (en) * | 2017-01-18 | 2017-08-08 | 哈尔滨工程大学 | A kind of two-way oil-feed orifice-plate type electric-controlled fuel injector with ditch |
| EP3339628A1 (en) * | 2016-12-23 | 2018-06-27 | Continental Automotive GmbH | Valve assembly for an injection valve and injection valve |
| CN210317570U (en) * | 2019-06-03 | 2020-04-14 | 无锡格林鲍尔科技有限公司 | Valve rod matching part high-pressure common rail oil injector |
-
2019
- 2019-06-03 CN CN201910478220.8A patent/CN110131084B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120103308A1 (en) * | 2010-10-28 | 2012-05-03 | Caterpillar, Inc. | Two-Way Valve Orifice Plate for a Fuel Injector |
| EP2778386A1 (en) * | 2013-03-13 | 2014-09-17 | Delphi International Operations Luxembourg S.à r.l. | Control valve assembly and fuel injector incorporating a control valve assembly |
| EP2947306A1 (en) * | 2014-05-22 | 2015-11-25 | Continental Automotive GmbH | Injector for injecting fluid |
| CN204458154U (en) * | 2015-03-09 | 2015-07-08 | 龙口龙泵燃油喷射有限公司 | A kind of pressure balance type common-rail injector |
| CN104728002A (en) * | 2015-03-26 | 2015-06-24 | 常州博瑞油泵油嘴有限公司 | High pressure common rail oil sprayer without static leakage |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529317A (en) * | 2019-08-23 | 2019-12-03 | 一汽解放汽车有限公司 | A kind of fuel injection valve valve pocket assembly |
| CN111594368A (en) * | 2020-04-17 | 2020-08-28 | 莆田市宏业精密机械有限公司 | Area compensation manufacturing method of pressure balance oil nozzle and pressure balance oil nozzle manufactured by same |
| CN114483383A (en) * | 2022-01-28 | 2022-05-13 | 刘义亭 | Gas fuel injector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110131084B (en) | 2024-05-28 |
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Address after: No.203-2, Chengnan Road, Xinwu District, Wuxi City, Jiangsu Province Patentee after: WUXI GELIN BAOER TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 214028, No. 203-4 Chengnan Road, Xinwu District, Wuxi City, Jiangsu Province Patentee before: WUXI GELIN BAOER TECHNOLOGY Co.,Ltd. Country or region before: China |