CN108150327A - Connection structure of oil sprayer and high-pressure oil pipe - Google Patents
Connection structure of oil sprayer and high-pressure oil pipe Download PDFInfo
- Publication number
- CN108150327A CN108150327A CN201810026883.1A CN201810026883A CN108150327A CN 108150327 A CN108150327 A CN 108150327A CN 201810026883 A CN201810026883 A CN 201810026883A CN 108150327 A CN108150327 A CN 108150327A
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- fuel injector
- union nut
- hole
- pressure 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.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 22
- 239000000446 fuel Substances 0.000 claims description 74
- 239000007921 spray Substances 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 150
- 238000005266 casting Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 208000025599 Heat Stress disease Diseases 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 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
- 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
- F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
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
A connection structure of an oil sprayer and a high-pressure oil pipe comprises the oil sprayer, the high-pressure oil pipe and a union nut, wherein the oil sprayer is arranged on a cylinder cover, one end of the union nut is provided with a threaded hole, the other end of the union nut is provided with an oil pipe hole which is coaxial with the threaded hole and communicated with the threaded hole, one end of the union nut is communicated with an oil pipe of the oil sprayer through the threaded hole, the other end of the union nut extends out after penetrating through the cylinder cover, an oil pipe pier head is communicated with the oil pipe of the oil sprayer after the high-pressure oil pipe penetrates through the oil pipe hole, a bushing is sleeved at a position, close to the oil pipe pier head, of the high-pressure oil pipe, the inner peripheral surface of the bushing is in interference fit with the outer peripheral surface of the high-pressure oil pipe, the outer peripheral surface. The design has the advantages of simple structure, simple and convenient assembly, good sealing effect, long service life, simple manufacture and high reliability.
Description
Technical field
The present invention relates to fuel injector field more particularly to the connection structures of a kind of fuel injector and high-pressure oil pipe, main to be applicable in
In simplified structure, reduce assembly difficulty.
Background technology
At present, the connection of high-pressure oil pipe and fuel injector needs one section of high-pressure connecting pipe of intermediate connection（HPC）, HPC pass through cylinder
Cover the pilot hole of casting and fuel injector crush seal.Existing diesel high pressure fuel tube assembly is by high-pressure oil pipe, lock sleeve, connection
Three kinds of parts of nut composition, antidetonation, it is locking, leak-proof can be good, with reliable, the calibration pressure of compression test under super high is
160MPa.But there are following defects for the prior art：Increase cylinder casting difficulty, while assemble complexity；Existing design can not expire
The sealing demand of sufficient super-pressure fuel pressure, HPC structures are compressed from rear end, more demanding to HPC integral strengths, and
HPC heads excessive high hardness can generate sealing risk.
Chinese patent, Authorization Notice No. CN202833533U, authorized announcement date are the utility model on March 27th, 2013
It discloses a kind of fuel injector high-pressure oil pipe union nut and the sealing structure including the union nut, fuel injector is arranged on cylinder cap
On, and in cylinder head cover, high-pressure oil pipe is stretched into cylinder head cover and is connected on fuel injector by union nut, and union nut includes
Turret head head, stop lug and cylindrical plug and the tube chamber for axially penetrating through entire union nut.Although the utility model is close
It is good to seal effect, but it still has following defect：The utility model mesohigh oil pipe needs to stretch into passes through pipe again in cylinder head cover
Connected nut is connected to fuel injector, and union nut is mounted on by sealing ring on cylinder head cover, and such design is not only complicated, and
And assembling is cumbersome.
Invention content
The purpose of the present invention is overcome the problems, such as it is in the prior art it is complicated, assembling it is cumbersome the defects of and, provide
A kind of connection structure of fuel injector simple in structure, assembling is easy and high-pressure oil pipe.
In order to achieve the above object, the technical solution of the present invention is：A kind of connection structure of fuel injector and high-pressure oil pipe,
Including fuel injector, high-pressure oil pipe, union nut, the fuel injector is arranged on cylinder cap, and the fuel injector oil pipe of fuel injector passes through connection
Pipe nut is connected with high-pressure oil pipe, and one end of the union nut offers threaded hole, the other end of union nut offer with
Threaded hole is coaxial and the oil pipe hole that communicates, one end of the union nut are connected by threaded hole with fuel injector oil pipe, union spiral shell
Female other end stretches out after passing through cylinder cap, and the high-pressure oil pipe connects after passing through oil pipe hole with the fuel injector oil pipe in threaded hole
It is logical.
The oil pipe hole includes No.1 oil pipe hole and No. two oil pipe holes, and the diameter in the No.1 oil pipe hole is more than No. two oil pipes
The diameter in hole, the one end in the No.1 oil pipe hole are communicated with No. two oil pipe holes, and the other end in No.1 oil pipe hole is communicated with threaded hole,
The high-pressure oil pipe includes oil pipe ontology and the oil pipe pier nose of its end set, the oil pipe ontology are plugged in No. two oil pipe holes
Interior, the oil pipe pier nose is located in No.1 oil pipe hole, and the fuel injector oil pipe connects after passing through threaded hole with oil pipe pier nose, oil spout
The peripheral surface of device oil pipe is connected with threaded hole.
It is located on the oil pipe ontology and is arranged with bushing, the inner peripheral surface and oil pipe of the bushing close to the position of oil pipe pier nose
The peripheral surface interference fit of ontology, the peripheral surface of bushing are in contact with the inner peripheral surface of union nut.
One end that the union nut is located at outside cylinder cap is provided with flange face, and the structure of the flange face is can twisting knot
Structure.
The structure of the flange face is quadrangle, hexagon, dodecagon, hexagonal flower-shape or flat.
The union nut includes the No.1 linkage section, interlude, No. two linkage sections that are sequentially communicated, the No.1 linkage section
It is connected with fuel injector oil pipe, No. two linkage sections connect after passing through cylinder cap with flange face, the diameter of the No.1 linkage section, two
The diameter of number linkage section is all higher than the diameter of interlude.
The position being located on No. two linkage sections outside cylinder cap is arranged with gasket, and the gasket passes through bolt and cylinder cap
It is connected.
Compared with prior art, beneficial effects of the present invention are：
1st, one end of union nut offers threaded hole, union spiral shell in the connection structure of a kind of fuel injector of the present invention and high-pressure oil pipe
Female other end offers oil pipe hole that is coaxial with threaded hole and communicating, and one end of union nut passes through threaded hole and fuel oil injector
Pipe connects, and the other end of union nut stretches out after passing through cylinder cap, high-pressure oil pipe pass through behind oil pipe hole with the spray in threaded hole
Oily device oil pipe connection, such design are not only simple in structure, and during assembling, and the high-pressure oil pipe with union nut is passed through on cylinder cap
Hole after, tighten union nut.Therefore, the configuration of the present invention is simple, assembling are easy.
2nd, oil pipe ontology is plugged in No. two oil pipe holes in the connection structure of a kind of fuel injector of the present invention and high-pressure oil pipe, oil
Pipe pier head is located in No.1 oil pipe hole, and fuel injector oil pipe connects after passing through threaded hole with oil pipe pier nose, the periphery of fuel injector oil pipe
Face is connected with threaded hole, improves sealing effect；It is located on oil pipe ontology and is arranged with bushing close to the position of oil pipe pier nose, increases
If bushing, high-pressure oil pipe cracking risk is reduced；Union nut includes the No.1 linkage section, interlude, No. two companies being sequentially communicated
Section is connect, No.1 linkage section is connected with fuel injector oil pipe, and No. two linkage sections connect after passing through cylinder cap with flange face, No.1 linkage section
Diameter, No. two linkage sections diameter be all higher than the diameter of interlude, such design not only reduces manufacture difficulty, and improves
Unfailing performance.Therefore, sealing effect of the present invention is good, service life is long, is simple to manufacture, reliability height.
3rd, one end that union nut is located at outside cylinder cap in the connection structure of a kind of fuel injector of the present invention and high-pressure oil pipe is set
There is a flange face, the structure of flange face is can twisting structure so that installation is easy with dismounting；It is located at outside cylinder cap on No. two linkage sections
Position is arranged with gasket, and gasket is connected by bolt with cylinder cap, and not only sealing effect is good, but also assembles easy.Therefore,
Present invention assembling is easy, sealing effect is good.
Description of the drawings
Fig. 1 is the structure diagram of the connection structure of a kind of fuel injector of the present invention and high-pressure oil pipe.
Fig. 2 is the vertical view of the connection structure of a kind of fuel injector of the present invention and high-pressure oil pipe.
Fig. 3 is mesohigh oil pipe of the present invention and the structure diagram of union nut assembling.
Fig. 4 is the structure diagram of union nut in the present invention.
In figure：Fuel injector 1, high-pressure oil pipe 2, oil pipe ontology 21, oil pipe pier nose 22, union nut 3, threaded hole 31, oil pipe
Hole 32, the oil pipe hole 322 of No.1 oil pipe hole 321, two, flange face 33, No.1 linkage section 34,35, No. two linkage sections 36 of interlude,
Cylinder cap 4, bushing 5, gasket 6, bolt 7, injector plate 8, follower bolt 9, high pressure oil rail 10.
Specific embodiment
Below in conjunction with description of the drawings, the present invention is described in further detail with specific embodiment.
Referring to Fig. 1 to Fig. 4, the connection structure of a kind of fuel injector and high-pressure oil pipe, including fuel injector 1, high-pressure oil pipe 2, connection
Pipe nut 3, the fuel injector 1 are arranged on cylinder cap 4, and the fuel injector oil pipe of fuel injector 1 passes through union nut 3 and high-pressure oil pipe 2
Connection, one end of the union nut 3 offer threaded hole 31, and the other end of union nut 3 offers coaxial with threaded hole 31
And the oil pipe hole 32 communicated, one end of the union nut 3 are connected by threaded hole 31 with fuel injector oil pipe, union nut 3
The other end stretches out after passing through cylinder cap 4, the high-pressure oil pipe 2 pass through behind oil pipe hole 32 with the fuel injector oil pipe in the threaded hole 31
Connection.
The oil pipe hole 32 includes No.1 oil pipe hole 321 and No. two oil pipe holes 322, the diameter in the No.1 oil pipe hole 321
More than the diameter in No. two oil pipe holes 322, the one end in the No.1 oil pipe hole 321 is communicated with No. two oil pipe holes 322, No.1 oil pipe hole
321 other end is communicated with threaded hole 31, and the high-pressure oil pipe 2 includes oil pipe ontology 21 and the oil pipe pier nose of its end set
22, the oil pipe ontology 21 is plugged in No. two oil pipe holes 322, and the oil pipe pier nose 22 is located in No.1 oil pipe hole 321, described
Fuel injector oil pipe connects after passing through threaded hole 31 with oil pipe pier nose 22, and the peripheral surface of fuel injector oil pipe is connected with threaded hole 31.
It is located on the oil pipe ontology 21 and is arranged with bushing 5, the inner peripheral surface of the bushing 5 close to the position of oil pipe pier nose 22
It is interference fitted with the peripheral surface of oil pipe ontology 21, the peripheral surface of bushing 5 is in contact with the inner peripheral surface of union nut 3.
One end that the union nut 3 is located at outside cylinder cap 4 is provided with flange face 33, and the structure of the flange face 33 is can pull
It is twisted structure.
The structure of the flange face 33 is quadrangle, hexagon, dodecagon, hexagonal flower-shape or flat.
The union nut 3 includes 35, No. two linkage sections 36 of No.1 linkage section 34, interlude for being sequentially communicated, and described one
Number linkage section 34 is connected with fuel injector oil pipe, and No. two linkage sections 36 connect after passing through cylinder cap 4 with flange face 33, the No.1
The diameter of linkage section 34, No. two linkage sections 36 diameter be all higher than the diameter of interlude 35.
The position being located on No. two linkage sections 36 outside cylinder cap 4 is arranged with gasket 6, and the gasket 6 passes through bolt 7
It is connected with cylinder cap 4.
The principle of the present invention is described as follows：
The design is related to a kind of high-pressure oil pipe union nut for super-pressure fuel system, and union nut one end is equipped with interior spiral shell
Line, the other end is equipped with is located at the end in union nut for the oil pipe hole of high-pressure oil pipe insertion and hexagonal flange, high-pressure oil pipe
Equipped with the pier nose for preventing high-pressure oil pipe from deviating from, it is arranged with outside oil pipe along the length direction of high-pressure oil pipe between pier nose and union nut
Bushing, bushing are interference fitted with high-pressure oil pipe, and bushing is in contact away from the one side of high-pressure oil pipe with union nut, the effect of bushing
It is that force part is allowed to reduce high-pressure oil pipe cracking risk far from high-pressure oil pipe pier nose deformed region；High-pressure oil pipe assembly passes through cylinder
It covers by tightening the hexagonal flange of union nut one end after stomidium gap, to be threadedly coupled with fuel injector, and to high pressure fuel
It is sealed.
Above-mentioned designing scheme has been successfully applied to next-generation state's sixfold diesel engine newly developed, which carries
The fuel system of 2500bar, high-pressure oil pipe are directly attached by cylinder cap rocker arm chamber hole with fuel injector, and union nut is worn cylinder and set
Meter reduces the casting difficulty of cylinder cap, while increases the cooling heat transferring contact surface of cylinder cap, greatly optimizes the heat fatigue of cylinder cap
Characteristic, and other types pass through HPC（High-pressure connecting pipe）It is connect with fuel injector, HPC passes through the duct cast in cylinder cap and oil spout
Device connects, and will certainly occupy a part of cooling-water duct and contact area.In addition, union nut respectively with high pressure oil rail and oil spout
Device connector is connected through a screw thread, and union nut gives axial force transmission to high-pressure oil pipe pier nose part, pier nose again with junction contacts portion
Divide and generate flexible deformation to high pressure fuel crush seal, the program can meet 2500bar superelevation compression ignitions by reliability demonstration
The sealing demand of oil.The design simplifies the connection structure of high-pressure oil pipe and fuel injector, reduces cylinder casting and final assembly
Complexity；Union nut connection improves super-pressure fuel sealing reliability.
Embodiment：
Referring to Fig. 1 to Fig. 4, the connection structure of a kind of fuel injector and high-pressure oil pipe, including fuel injector 1, high-pressure oil pipe 2, union spiral shell
Mother 3, the fuel injector 1 is arranged on cylinder cap 4, and the fuel injector oil pipe of fuel injector 1 is connected by union nut 3 with high-pressure oil pipe 2,
One end of the union nut 3 offers threaded hole 31, and the other end of union nut 3 is offered coaxial with threaded hole 31 and communicated
Oil pipe hole 32, one end of the union nut 3 connected by threaded hole 31 with fuel injector oil pipe, the other end of union nut 3
It is stretched out after across cylinder cap 4, the high-pressure oil pipe 2 connects after passing through oil pipe hole 32 with the fuel injector oil pipe in threaded hole 31；
The oil pipe hole 32 includes No.1 oil pipe hole 321 and No. two oil pipe holes 322, and the diameter in the No.1 oil pipe hole 321 is more than No. two
The diameter in oil pipe hole 322, the one end in the No.1 oil pipe hole 321 are communicated with No. two oil pipe holes 322, No.1 oil pipe hole 321 it is another
One end is communicated with threaded hole 31, and the high-pressure oil pipe 2 includes oil pipe ontology 21 and the oil pipe pier nose 22 of its end set, described
Oil pipe ontology 21 is plugged in No. two oil pipe holes 322, and the oil pipe pier nose 22 is located in No.1 oil pipe hole 321, the fuel injector
Oil pipe connects after passing through threaded hole 31 with oil pipe pier nose 22, and the peripheral surface of fuel injector oil pipe is connected with threaded hole 31；The oil
It is located on tube body 21 and is arranged with bushing 5, inner peripheral surface and the oil pipe ontology 21 of the bushing 5 close to the position of oil pipe pier nose 22
Peripheral surface is interference fitted, and the peripheral surface of bushing 5 is in contact with the inner peripheral surface of union nut 3；The union nut 3 is located at cylinder cap 4
Outer one end is provided with flange face 33, and the structure of the flange face 33 is hexagon；The union nut 3 includes what is be sequentially communicated
35, No. two No.1 linkage section 34, interlude linkage sections 36, the No.1 linkage section 34 are connected with fuel injector oil pipe, described No. two
Linkage section 36 connects after passing through cylinder cap 4 with flange face 33, and diameter, the diameter of No. two linkage sections 36 of the No.1 linkage section 34 are equal
More than the diameter of interlude 35；The position being located on No. two linkage sections 36 outside cylinder cap 4 is arranged with gasket 6, the sealing
Pad 6 is connected by bolt 7 with cylinder cap 4.
Claims (7)
1. a kind of connection structure of fuel injector and high-pressure oil pipe, including fuel injector（1）, high-pressure oil pipe（2）, union nut（3）, institute
State fuel injector（1）It is arranged on cylinder cap（4）On, fuel injector（1）Fuel injector oil pipe pass through union nut（3）With high-pressure oil pipe（2）
Connection, it is characterised in that：The union nut（3）One end offer threaded hole（31）, union nut（3）The other end open up
Have and threaded hole（31）Oil pipe hole that is coaxial and communicating（32）, the union nut（3）One end pass through threaded hole（31）With spray
Oily device oil pipe connection, union nut（3）The other end pass through cylinder cap（4）After stretch out, the high-pressure oil pipe（2）Across oil pipe hole
（32）Afterwards with positioned at threaded hole（31）Interior fuel injector oil pipe connection.
2. the connection structure of a kind of fuel injector according to claim 1 and high-pressure oil pipe, it is characterised in that：The oil pipe hole
（32）Including No.1 oil pipe hole（321）With No. two oil pipe holes（322）, the No.1 oil pipe hole（321）Diameter be more than No. two oil
Pore（322）Diameter, the No.1 oil pipe hole（321）One end and No. two oil pipe holes（322）It communicates, No.1 oil pipe hole
（321）The other end and threaded hole（31）It communicates, the high-pressure oil pipe（2）Including oil pipe ontology（21）And its end set
Oil pipe pier nose（22）, the oil pipe ontology（21）It is plugged in No. two oil pipe holes（322）It is interior, the oil pipe pier nose（22）Positioned at No.1
Oil pipe hole（321）Interior, the fuel injector oil pipe passes through threaded hole（31）Afterwards with oil pipe pier nose（22）It connects, outside fuel injector oil pipe
Circumferential surface and threaded hole（31）It is connected.
3. the connection structure of a kind of fuel injector according to claim 2 and high-pressure oil pipe, it is characterised in that：The oil pipe sheet
Body（21）It is upper to be located at close to oil pipe pier nose（22）Position be arranged with bushing（5）, the bushing（5）Inner peripheral surface and oil pipe ontology
（21）Peripheral surface interference fit, bushing（5）Peripheral surface and union nut（3）Inner peripheral surface be in contact.
4. the connection structure of a kind of fuel injector and high-pressure oil pipe according to any one in claim 1-3, feature exist
In：The union nut（3）Positioned at cylinder cap（4）Outer one end is provided with flange face（33）, the flange face（33）Structure be
It can twisting structure.
5. the connection structure of a kind of fuel injector according to claim 4 and high-pressure oil pipe, it is characterised in that：The flange face
（33）Structure be quadrangle, hexagon, dodecagon, hexagonal flower-shape or flat.
6. the connection structure of a kind of fuel injector according to claim 4 and high-pressure oil pipe, it is characterised in that：The union spiral shell
It is female（3）Including the No.1 linkage section being sequentially communicated（34）, interlude（35）, No. two linkage sections（36）, the No.1 linkage section
（34）It is connected with fuel injector oil pipe, No. two linkage sections（36）Across cylinder cap（4）Afterwards with flange face（33）Connection, the No.1
Linkage section（34）Diameter, No. two linkage sections（36）Diameter be all higher than interlude（35）Diameter.
7. the connection structure of a kind of fuel injector according to claim 6 and high-pressure oil pipe, it is characterised in that：No. two companies
Connect section（36）It is upper to be located at cylinder cap（4）Outer position is arranged with gasket（6）, the gasket（6）Pass through bolt（7）With cylinder cap
（4）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810026883.1A CN108150327A (en) | 2018-01-11 | 2018-01-11 | Connection structure of oil sprayer and high-pressure oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810026883.1A CN108150327A (en) | 2018-01-11 | 2018-01-11 | Connection structure of oil sprayer and high-pressure oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108150327A true CN108150327A (en) | 2018-06-12 |
Family
ID=62461317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810026883.1A Pending CN108150327A (en) | 2018-01-11 | 2018-01-11 | Connection structure of oil sprayer and high-pressure oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108150327A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296487A (en) * | 2018-11-13 | 2019-02-01 | 东风商用车有限公司 | Fuel injector installation positioning tool |
| CN113107729A (en) * | 2021-04-09 | 2021-07-13 | 东风（十堰）汽车管业有限公司 | Assembly structure for eliminating damage between high-pressure oil pipe body and long bushing |
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| US20060163873A1 (en) * | 2005-01-25 | 2006-07-27 | Benteler Automobiltechnik Gmbh | Connection assembly for pipelines |
| CN202532055U (en) * | 2012-05-03 | 2012-11-14 | 东风汽车有限公司 | Spherical pier head structure of high-pressure oil pipe |
| CN203223324U (en) * | 2013-04-24 | 2013-10-02 | 上海柴油机股份有限公司 | Diesel engine fuel oil injector and high-pressure fuel oil inlet pipe connecting device |
| DE102012012422A1 (en) * | 2012-06-22 | 2013-12-24 | Daimler Ag | Fastening arrangement for fastening fuel line to injector, has passage opening that is conically formed in longitudinal extension direction of fuel line in subarea |
| DE102016012080A1 (en) * | 2016-10-08 | 2017-04-27 | Daimler Ag | Apparatus and method for turning a arranged on a media line union nut |
| CN207960816U (en) * | 2018-01-11 | 2018-10-12 | 东风商用车有限公司 | Connection structure of oil sprayer and high-pressure oil pipe |
| CN109296487A (en) * | 2018-11-13 | 2019-02-01 | 东风商用车有限公司 | Fuel injector installation positioning tool |
| CN112963279A (en) * | 2021-03-19 | 2021-06-15 | 广西玉柴机器股份有限公司 | Cylinder penetrating sealing structure of oil injector |
-
2018
- 2018-01-11 CN CN201810026883.1A patent/CN108150327A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060163873A1 (en) * | 2005-01-25 | 2006-07-27 | Benteler Automobiltechnik Gmbh | Connection assembly for pipelines |
| CN202532055U (en) * | 2012-05-03 | 2012-11-14 | 东风汽车有限公司 | Spherical pier head structure of high-pressure oil pipe |
| DE102012012422A1 (en) * | 2012-06-22 | 2013-12-24 | Daimler Ag | Fastening arrangement for fastening fuel line to injector, has passage opening that is conically formed in longitudinal extension direction of fuel line in subarea |
| CN203223324U (en) * | 2013-04-24 | 2013-10-02 | 上海柴油机股份有限公司 | Diesel engine fuel oil injector and high-pressure fuel oil inlet pipe connecting device |
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| CN207960816U (en) * | 2018-01-11 | 2018-10-12 | 东风商用车有限公司 | Connection structure of oil sprayer and high-pressure oil pipe |
| CN109296487A (en) * | 2018-11-13 | 2019-02-01 | 东风商用车有限公司 | Fuel injector installation positioning tool |
| CN112963279A (en) * | 2021-03-19 | 2021-06-15 | 广西玉柴机器股份有限公司 | Cylinder penetrating sealing structure of oil injector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296487A (en) * | 2018-11-13 | 2019-02-01 | 东风商用车有限公司 | Fuel injector installation positioning tool |
| CN113107729A (en) * | 2021-04-09 | 2021-07-13 | 东风（十堰）汽车管业有限公司 | Assembly structure for eliminating damage between high-pressure oil pipe body and long bushing |
| CN113107729B (en) * | 2021-04-09 | 2023-03-14 | 东风（十堰）汽车管业有限公司 | Assembly structure for eliminating damage between high-pressure oil pipe body and long bushing |
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