CN105840378A - Oil inlet sealing structure of diesel engine - Google Patents
Oil inlet sealing structure of diesel engine Download PDFInfo
- Publication number
- CN105840378A CN105840378A CN201610332575.2A CN201610332575A CN105840378A CN 105840378 A CN105840378 A CN 105840378A CN 201610332575 A CN201610332575 A CN 201610332575A CN 105840378 A CN105840378 A CN 105840378A
- Authority
- CN
- China
- Prior art keywords
- oil
- installing hole
- fuel injector
- inlet pipe
- oil inlet
- 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
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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
- F02F11/002—Arrangements of sealings in combustion engines involving cylinder heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
- F02F11/005—Arrangements of sealings in combustion engines involving cylinder liners
Abstract
The invention provides an oil inlet sealing structure of a diesel engine. The oil inlet sealing structure comprises a cylinder cover, an oil injector, a guide barrel body, a cam bearing frame, an oil inlet tube, a sealing bush, an oil injector pressing thread sleeve, an oil inlet tube pressing thread sleeve and an oil return head. According to the oil inlet sealing structure of the diesel engine, through the reasonable layout between the oil inlet tube and the cam bearing frame, the guide barrel body and the cylinder cover and the reasonable application of the sealing bush and sealing rubber rings, the reliable sealing of diesel oil and engine oil between the oil injector and the guide barrel body, the guide barrel body and the cylinder cover, the guide barrel body and the oil inlet tube, the oil inlet tube and the cam bearing frame is achieved while the height of an entire engine is reduced.
Description
Technical field
The invention belongs to diesel engine technologies field, especially relate to a kind of diesel engine oil-feed and seal knot
Structure.
Background technology
Diesel injector lateral fuel feed hole multi-processing is in cylinder head, and oil inlet pipe is by being tightened in cylinder head
On clamping sleeve ensure the sealing between oil inlet pipe and fuel injector.This sealing structure good reliability, seals
Link is few, but this kind of structure is applied in cylinder head to have on the diesel engine of enough arrangement space more, works as bavin
When oil machine is towards high summation watt rating and high-quality power development, cylinder head height is depressed, and this kind of structure exists
Difficult point is become in the layout of electromotor.
Summary of the invention
In view of this, it is contemplated that propose a kind of diesel engine to enter oil seal structure, reducing, diesel engine is whole
While height, it is achieved the positive sealing between oil inlet pipe and fuel injector.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
A kind of diesel engine enters oil seal structure, including:
Cylinder head, this cylinder head offers installing hole and oil returning tube under fuel injector；
Fuel injector, the atomizer of this fuel injector lower end stretches into cylinder body through installing hole under described fuel injector, should
The oil return interface of fuel injector is by the inner pipe of the cavity in installing hole under fuel injector with described oil returning tube
The corresponding connection of mouth, fuel injector is positioned at the position below described oil return interface and installing hole under described fuel injector
It is in sealing contact；
Guide cylinder, this guide cylinder offers on fuel injector installing hole, this guide before installing hole and oil inlet pipe
Body is docked with the sealing of installing hole under described fuel injector by installing hole on fuel injector, is sleeved on described oil spout
The upper end of device, and fixing with described cylinder head be connected；
Camshaft bearing framework, is fixed in cylinder head, pacifies after this camshaft bearing framework offers oil inlet pipe
Dress hole, installing hole tandem docking before installing hole and described oil inlet pipe after described oil inlet pipe；
Oil inlet pipe, is sequentially inserted into by installing hole before installing hole after described oil inlet pipe and oil inlet pipe, this oil inlet pipe
The oil-feed interface of inner and described fuel injector be docked and connected, described fuel injector is positioned at described oil-feed interface
The position of top is in sealing contact with installing hole on described fuel injector；
Seal cartridge, sealing shroud is contained on described oil inlet pipe, the two ends of this seal cartridge respectively with described enter
Before oil pipe, after installing hole and oil inlet pipe, installing hole is in sealing contact；
Oil sprayer clamping swivel nut, is fixedly mounted on the upper end of installing hole on described fuel injector；
Oil inlet pipe gland nut, is sleeved on described oil inlet pipe, and is fixedly mounted on peace after described oil inlet pipe
The rear end in dress hole；
Oil return oil head, is arranged in described cylinder head, and with the outer end ferrule of described oil returning tube even
Connect.
Further, described fuel injector is positioned at the position below described oil return interface by the first fluid sealant
Circle is in sealing contact with installing hole under described fuel injector.
Further, between described guide cylinder and cylinder head, it is folded with the second O-ring seal, described second close
Sealing rubber ring and installing hole concentric under installing hole on described fuel injector and fuel injector.
Further, described fuel injector is positioned at the position above described oil-feed interface by the 3rd fluid sealant
Circle is in sealing contact with installing hole on described fuel injector.
Further, described seal cartridge is sleeved on described oil inlet pipe, and by the 4th O-ring seal with
Described oil inlet pipe is in sealing contact.
Further, the front end of described seal cartridge is installed before described oil inlet pipe by the 5th O-ring seal
Hole is in sealing contact, and rear end is in sealing contact by installing hole after the 6th O-ring seal and described oil inlet pipe.
Further, described camshaft bearing framework is connected by alignment pin and described cylinder head are fixing.
Further, described guide cylinder is connected by alignment pin and described cylinder head are fixing.
Relative to prior art, diesel engine of the present invention enters oil seal structure and has the advantage that
(1) diesel engine of the present invention enters oil seal structure, by oil inlet pipe and camshaft bearing framework,
Rational deployment between guide cylinder, cylinder head and seal cartridge and the reasonable utilization of O-ring seal, in fall
While low electromotor complete machine height, it is achieved that fuel injector and guide cylinder, guide cylinder and cylinder head, guide
Body and oil inlet pipe, oil inlet pipe become the diesel oil of framework and the positive sealing of machine oil with camshaft.
(2) diesel engine of the present invention enters oil seal structure, real by middle seal cartridge structure
Show the Elastic Contact between oil inlet pipe and guide cylinder, camshaft bearing framework, can be that oil inlet pipe is reserved certain
Deformation space, on camshaft bearing framework after oil inlet pipe on installing hole and fuel injector between oil-feed interface
In the case of alignment cannot accurately ensure, the elastic deformation of oil inlet pipe self is utilized to ensure oil inlet pipe and spray
Contact between oil device seals, owing to only being contacted with seal cartridge by O-ring seal in the middle of oil inlet pipe, for
Enough spaces have been reserved in the centering deformation of oil inlet pipe, it is achieved that reliably seal.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, the present invention's
Schematic description and description is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.?
In accompanying drawing:
Fig. 1 is the diesel engine oil-feed sealed structural representation described in the embodiment of the present invention；
Fig. 2 is that the diesel engine described in the embodiment of the present invention enters oil seal structure correspondence oil pocket relation schematic diagram.
Description of reference numerals:
1-oil sprayer clamping swivel nut；2-guide cylinder；Installing hole on 21-fuel injector；Install before 22-oil inlet pipe
Hole；3-the 5th O-ring seal；4-the 6th O-ring seal；5-the 4th O-ring seal；6-seal cartridge；7-
Camshaft bearing framework；Installing hole after 71-oil inlet pipe；8-oil inlet pipe gland nut；9-oil inlet pipe；10-gas
Cylinder cap；Installing hole under 101-fuel injector；102-oil returning tube；11-oil return oil head；12-the first fluid sealant
Circle；13-the second O-ring seal；14-fuel injector；141-oil return interface；142-oil-feed interface；15-
Three O-ring seals.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the present invention and the spy in embodiment
Levy and can be mutually combined.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ",
On " ", D score, "front", "rear", "left", "right", " vertically ", " level ",
" push up ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be for based on shown in accompanying drawing
Orientation or position relationship, be for only for ease of the description present invention and simplifying and describe rather than instruction or dark
Show that device or the element of indication must have specific orientation, with specific azimuth configuration and operation, therefore
It is not considered as limiting the invention.Additionally, term " first ", " second " etc. are only used for describing
Purpose, and it is not intended that instruction or hint relative importance or implicit indicate indicated technical characteristic
Quantity.Thus, the feature defining " first ", " second " etc. can be expressed or impliedly wrap
Include one or more this feature.In describing the invention, except as otherwise noted, " multiple "
It is meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term
" install ", " being connected ", " connection " should be interpreted broadly, and connect, also for example, it may be fixing
Can be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can
Being to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.
For the ordinary skill in the art, can understand that above-mentioned term is in the present invention by concrete condition
In concrete meaning.
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As it is shown in figure 1, the present invention includes:
Cylinder head 10, this cylinder head 10 offers installing hole 101 and oil returning tube 102 under fuel injector；
Fuel injector 14, the atomizer of this fuel injector 14 lower end stretches into cylinder through installing hole 101 under fuel injector
Body, the oil return interface 141 of this fuel injector 14 is by the cavity in installing hole 101 under fuel injector and oil return
The inner mouth of pipe correspondence connection of pipeline 102, fuel injector 14 is positioned at the position below oil return interface 141
It is in sealing contact with installing hole under fuel injector 101；
Guide cylinder 2, this guide cylinder 2 offers on fuel injector installing hole before installing hole 21 and oil inlet pipe
22, this guide cylinder 2 is docked with the sealing of installing hole under fuel injector 101 by installing hole 21 on fuel injector,
It is sleeved on the upper end of fuel injector 14, and fixing with cylinder head 10 is connected；
Camshaft bearing framework 7, is fixed in cylinder head 10, and this camshaft bearing framework 7 offers oil-feed
Installing hole 71 after pipe, installing hole 22 tandem docking before installing hole 71 and oil inlet pipe after oil inlet pipe；
Oil inlet pipe 9, is sequentially inserted into by installing hole 22 before installing hole after oil inlet pipe 71 and oil inlet pipe, and this enters
The inner of oil pipe 9 is docked and connected with the oil-feed interface 142 of fuel injector 14, and fuel injector 14 is positioned at oil-feed
Position above interface 142 is in sealing contact with installing hole on fuel injector 21；
Seal cartridge 6, sealing shroud is contained on oil inlet pipe 9, the two ends of this seal cartridge 6 respectively with oil-feed
After the front installing hole 22 of pipe and oil inlet pipe, installing hole 71 is in sealing contact；
Oil sprayer clamping swivel nut 1, is fixedly mounted on the upper end of installing hole 21 on fuel injector；
Oil inlet pipe gland nut 8, is sleeved on oil inlet pipe 9, and is fixedly mounted on installing hole after oil inlet pipe
The rear end of 71；
Oil return oil head 11, is arranged in cylinder head 10, and with the outer end ferrule of oil returning tube 102
Connect.
The position below oil return interface 141 it is positioned at by the first O-ring seal 12 and oil spout on fuel injector 14
Under device, installing hole 101 is in sealing contact.
The second O-ring seal 13, the second O-ring seal 13 it is folded with between guide cylinder 2 and cylinder head 10
With installing hole 101 concentric under installing hole on fuel injector 21 and fuel injector.
The position above oil-feed interface 142 it is positioned at by the 3rd O-ring seal 15 and oil spout on fuel injector 14
On device, installing hole 21 is in sealing contact.
Seal cartridge 6 is sleeved on oil inlet pipe 9, and is sealed with oil inlet pipe 9 by the 4th O-ring seal 5
Contact.
The front end of seal cartridge 6 is in sealing contact by installing hole 22 before the 5th O-ring seal 3 and oil inlet pipe,
Rear end is in sealing contact by installing hole 71 after the 6th O-ring seal 4 and oil inlet pipe.
Camshaft bearing framework 7 is connected by alignment pin is fixing with cylinder head 10.
Guide cylinder 2 is connected by alignment pin is fixing with cylinder head 10.
Also it is machined with locating slot on guide cylinder 2, is connected fixing to fuel injector 14 and locating slot by alignment pin
Connect, it is achieved the location to fuel injector 14 direction of rotation.
In the course of processing, by installing hole 21 on installing hole 101 under control fuel injector and fuel injector
The height dimension of installing hole 71 after installing hole 22 and oil inlet pipe before depth dimensions and oil inlet pipe, it is ensured that enter
Height alignment between oil pipe 9 and oil inlet pipe 9.
Seal cartridge 6 is being fitted without the 4th O-ring seal the 5, the 5th O-ring seal 3 and the 6th fluid sealant
When enclosing 4, after installing hole 22 and oil inlet pipe, installing hole 71 can ensure before oil inlet pipe enough gaps from
By moving, to leave between installing hole 22, oil inlet pipe 9 and seal cartridge 6 before oil inlet pipe 9 and oil inlet pipe
Enough gaps, it is ensured that the deformation space of oil inlet pipe 9.
As in figure 2 it is shown, the oil-feed interface 142 that diesel oil is docked fuel injector 14 by oil inlet pipe 9 enters oil spout
Device 14, is entered by the oil return interface 141 of fuel injector 14 and pacifies on installing hole 101 and fuel injector under fuel injector
In dress hole 21, then sent back to oil return oil head by the oil returning tube 102 connected with installing hole under fuel injector 101
11, in this oil circuit, fuel injector 14 is positioned at the position above oil-feed interface 142 by the 3rd sealing
Cushion rubber 15 seals with installing hole on fuel injector 21, close by second between guide cylinder 2 and cylinder head 10
Sealing rubber ring 13 seals, and fuel injector 14 is positioned at the position below oil return interface 141 by the first fluid sealant
Circle 12 seals with installing hole under fuel injector 101, and seal cartridge 6 and the 4th O-ring seal the 5, the 5th seal
Cushion rubber 3 and the 6th O-ring seal 4 are by installing hole after installing hole before oil inlet pipe 22 and oil inlet pipe 71 and the external world
Logical oil gap sealing, diesel oil is distributed under fuel injector installing hole 21 on installing hole 101, fuel injector, enters
Before oil pipe in installing hole 22 and seal cartridge 6, mix without the machine oil oozed out be positioned at outer end,
While reducing electromotor complete machine height, it is achieved that fuel injector 14 and guide cylinder 2, guide cylinder 2 and cylinder
What lid 10, guide cylinder 2 and oil inlet pipe 9, oil inlet pipe 9 became the diesel oil of framework 7 and machine oil with camshaft can
By sealing.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within the spirit of invention and principle, any modification, equivalent substitution and improvement etc. made, should be included in
Within protection scope of the present invention.
Claims (8)
1. a diesel engine enters oil seal structure, it is characterised in that including:
Cylinder head (10), this cylinder head (10) offers installing hole under fuel injector (101) and returns
Oil-piping (102)；
Fuel injector (14), the atomizer of this fuel injector (14) lower end is through installing hole under described fuel injector
(101) stretching into cylinder body, the oil return interface (141) of this fuel injector (14) is by installing hole under fuel injector
(101) connection corresponding with the inner mouth of pipe of described oil returning tube (102) of the cavity in, fuel injector (14)
On be positioned at installing hole (101) under position and the described fuel injector of described oil return interface (141) lower section and seal
Contact；
Guide cylinder (2), this guide cylinder (2) offers installing hole on fuel injector (21) and oil inlet pipe
Front installing hole (22), this guide cylinder (2) is pacified under fuel injector by installing hole (21) on fuel injector
The sealing docking of dress hole (101), is sleeved on the upper end of described fuel injector (14), and with described cylinder
Lid (10) is fixing to be connected；
Camshaft bearing framework (7), is fixed in cylinder head (10), on this camshaft bearing framework (7)
Offer installing hole (71) after oil inlet pipe, after described oil inlet pipe before installing hole (71) and described oil inlet pipe
Installing hole (22) tandem docking；
Oil inlet pipe (9), by installing hole (22) before installing hole (71) after described oil inlet pipe and oil inlet pipe
Being sequentially inserted into, the oil-feed interface (142) of the inner and described fuel injector (14) of this oil inlet pipe (9) is right
Lead in succession, described fuel injector (14) is positioned at the position of described oil-feed interface (142) top with described
On fuel injector, installing hole (21) is in sealing contact；
Seal cartridge (6), sealing shroud is contained on described oil inlet pipe (9), this seal cartridge (6)
Two ends respectively with described oil inlet pipe before after installing hole (22) and oil inlet pipe installing hole (71) be in sealing contact；
Oil sprayer clamping swivel nut (1), is fixedly mounted on the upper end of installing hole (21) on described fuel injector；
Oil inlet pipe gland nut (8), is sleeved on described oil inlet pipe (9), and is fixedly mounted on described
The rear end of installing hole (71) after oil inlet pipe；
Oil return oil head (11), is arranged in described cylinder head (10), and with described oil returning tube (102)
Outer end ferrule connect.
Diesel engine the most according to claim 1 enters oil seal structure, it is characterised in that: described spray
The position of described oil return interface (141) lower section it is positioned at by the first O-ring seal (12) on oil device (14)
It is in sealing contact with installing hole (101) under described fuel injector.
Diesel engine the most according to claim 1 enters oil seal structure, it is characterised in that lead described in:
Being folded with the second O-ring seal (13) between cylinder (2) and cylinder head (10), described second seals
Cushion rubber (13) and installing hole (101) concentric under installing hole (21) on described fuel injector and fuel injector.
Diesel engine the most according to claim 1 enters oil seal structure, it is characterised in that: described spray
The position of described oil-feed interface (142) top it is positioned at by the 3rd O-ring seal (15) on oil device (14)
It is in sealing contact with installing hole (21) on described fuel injector.
Diesel engine the most according to claim 1 enters oil seal structure, it is characterised in that: described close
Envelope lining (6) is sleeved on described oil inlet pipe (9), and by the 4th O-ring seal (5) with described
Oil inlet pipe (9) is in sealing contact.
Diesel engine the most according to claim 1 enters oil seal structure, it is characterised in that: described close
The front end of envelope lining (6) is close by installing hole (22) before the 5th O-ring seal (3) and described oil inlet pipe
Sealing-in is touched, and rear end is connect by installing hole (71) sealing after the 6th O-ring seal (4) and described oil inlet pipe
Touch.
Diesel engine the most according to claim 1 enters oil seal structure, it is characterised in that: described convex
Wheel bearing framework (7) is connected by alignment pin and described cylinder head (10) are fixing.
Diesel engine the most according to claim 1 enters oil seal structure, it is characterised in that lead described in:
Cylinder (2) is connected by alignment pin and described cylinder head (10) are fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610332575.2A CN105840378A (en) | 2016-05-18 | 2016-05-18 | Oil inlet sealing structure of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610332575.2A CN105840378A (en) | 2016-05-18 | 2016-05-18 | Oil inlet sealing structure of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105840378A true CN105840378A (en) | 2016-08-10 |
Family
ID=56592788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610332575.2A Pending CN105840378A (en) | 2016-05-18 | 2016-05-18 | Oil inlet sealing structure of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105840378A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422348A (en) * | 2015-12-19 | 2016-03-23 | 华南理工大学 | Sealing and flow splitting device based on Commins PT fuel injector detecting experiment |
| CN105973919A (en) * | 2016-07-28 | 2016-09-28 | 北京瑞莱博石油技术有限公司 | Core holding unit |
| CN112031971A (en) * | 2020-08-14 | 2020-12-04 | 东风商用车有限公司 | High-pressure oil pipe assembly |
| CN112746923A (en) * | 2020-07-29 | 2021-05-04 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Split type side oil inlet oil sprayer oil inlet device and side oil inlet oil sprayer oil inlet system |
| CN113250877A (en) * | 2021-06-08 | 2021-08-13 | 河南柴油机重工有限责任公司 | Common rail diesel injector mounting and positioning tool |
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| EP1001162A2 (en) * | 1998-11-12 | 2000-05-17 | Lucas Industries Limited | Injector and injector assembly |
| CN2521410Y (en) * | 2001-09-28 | 2002-11-20 | 中国第一汽车集团公司无锡柴油机厂 | Fuel injector for diesel engine |
| CN1854506A (en) * | 2005-04-28 | 2006-11-01 | 株式会社电装 | Fuel ejector and its assembly method |
| DE102007019278A1 (en) * | 2007-04-24 | 2008-11-06 | Robert Bosch Gmbh | Sealing arrangement for injector installation space for fuel injectors in internal combustion engine, has injector installation space, which takes place in cylinder head area and cylinder head is covered by cylinder head cover |
| CN201273242Y (en) * | 2008-08-12 | 2009-07-15 | 广西玉柴机器股份有限公司 | Fastening structure of oil ejector |
| CN102392708A (en) * | 2011-10-16 | 2012-03-28 | 中国兵器工业集团第七○研究所 | Engine cam shaft bearing frame |
| CN102425520A (en) * | 2011-12-31 | 2012-04-25 | 中国兵器工业集团第七○研究所 | Embedded oil charging structure for high-pressure fuel oil system |
| WO2015087105A1 (en) * | 2013-12-13 | 2015-06-18 | Volvo Truck Corporation | Cover of an internal combustion engine assembly having a common rail, engine assembly and automotive vehicle including such a cover |
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2016
- 2016-05-18 CN CN201610332575.2A patent/CN105840378A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1001162A2 (en) * | 1998-11-12 | 2000-05-17 | Lucas Industries Limited | Injector and injector assembly |
| CN2521410Y (en) * | 2001-09-28 | 2002-11-20 | 中国第一汽车集团公司无锡柴油机厂 | Fuel injector for diesel engine |
| CN1854506A (en) * | 2005-04-28 | 2006-11-01 | 株式会社电装 | Fuel ejector and its assembly method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422348A (en) * | 2015-12-19 | 2016-03-23 | 华南理工大学 | Sealing and flow splitting device based on Commins PT fuel injector detecting experiment |
| CN105422348B (en) * | 2015-12-19 | 2018-01-05 | 华南理工大学 | A kind of sealing part flow arrangement based on comingses PT fuel injector test experiences |
| CN105973919A (en) * | 2016-07-28 | 2016-09-28 | 北京瑞莱博石油技术有限公司 | Core holding unit |
| CN105973919B (en) * | 2016-07-28 | 2019-07-12 | 北京瑞莱博石油技术有限公司 | Core holding unit |
| CN112746923A (en) * | 2020-07-29 | 2021-05-04 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Split type side oil inlet oil sprayer oil inlet device and side oil inlet oil sprayer oil inlet system |
| CN112746923B (en) * | 2020-07-29 | 2022-10-04 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Split type side oil inlet oil sprayer oil inlet device and side oil inlet oil sprayer oil inlet system |
| CN112031971A (en) * | 2020-08-14 | 2020-12-04 | 东风商用车有限公司 | High-pressure oil pipe assembly |
| CN112031971B (en) * | 2020-08-14 | 2022-02-18 | 东风商用车有限公司 | High-pressure oil pipe assembly |
| CN113250877A (en) * | 2021-06-08 | 2021-08-13 | 河南柴油机重工有限责任公司 | Common rail diesel injector mounting and positioning tool |
| CN113250877B (en) * | 2021-06-08 | 2022-04-19 | 河南柴油机重工有限责任公司 | Common rail diesel injector mounting and positioning tool |
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Application publication date: 20160810 |