CN206917778U - High-pressure oil pump oil circuit, high-pressure oil pump and engine - Google Patents
High-pressure oil pump oil circuit, high-pressure oil pump and engine Download PDFInfo
- Publication number
- CN206917778U CN206917778U CN201720823493.8U CN201720823493U CN206917778U CN 206917778 U CN206917778 U CN 206917778U CN 201720823493 U CN201720823493 U CN 201720823493U CN 206917778 U CN206917778 U CN 206917778U
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- 230000008676 import Effects 0.000 claims abstract description 30
- 239000012530 fluid Substances 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 128
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013440 design planning Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
Automotive field is the utility model is related to, in particular to a kind of high-pressure oil pump oil circuit, high-pressure oil pump and engine, it is intended to solve the problems, such as that existing oil pump is inconvenient for use.High-pressure oil pump oil circuit, it includes oil transfer pump, the pump housing, inlet metering valve, flow-limiting valve, plunger assembly, delivery valve and common rail pipe；The pump housing includes pump housing inner chamber, and plunger assembly includes plunger cavity；Inlet metering valve includes setting gradually inlet valve forward horizontal stand chamber, oil-feed valve pocket and inlet valve back cavity；Oil-feed valve pocket includes import, first outlet and second outlet.The import of oil transfer pump is connected with oil transfer pump inlet ductwork, and the outlet of oil transfer pump is connected with one end of oil transfer pump export pipeline, and the other end of oil transfer pump export pipeline is connected with the import of inlet valve forward horizontal stand chamber；The import of flow-limiting valve pipeline is connected with oil transfer pump export pipeline, and the outlet of flow-limiting valve pipeline is connected with pump housing inner chamber；Flow-limiting valve is the sliding valve structure with cutoff hole；Inlet valve is by solenoid valve control, and inlet valve is normally open valve.
Description
Technical field
Automotive field is the utility model is related to, in particular to a kind of high-pressure oil pump oil circuit, high-pressure oil pump and is started
Machine.
Background technology
The fuel feeding assembly that high-pressure oil pump belongs in diesel fuel injection system, bears and is pressed and delivered to low pressure diesel
The responsibility of injector assembly.The central principle of high-pressure oil pump is the design planning of oil circuit.
But each several part of traditional oil circuit all some deficiencies：
1) flow-limiting valve is ball valve, and control pressure is not steady enough；
2) return line design is coarse, and oil return is only carried out by gap, the bad control uniformity of recirculating oil quantity, different oil pump differences
It is larger；
3) inlet metering valve is power-off normally close valve, and import part, cost is higher, and maximum stream flow has the upper limit, it is possible to create is cut
Stream.
Utility model content
The purpose of this utility model is to provide a kind of high-pressure oil pump oil circuit, and it can be that high-pressure oil pump output is more stable
With stable oil pressure.
Another object of the present utility model is to provide a kind of high-pressure oil pump for including above-mentioned high-pressure oil pump oil circuit, and it can
Stable high-voltage oil liquid is exported so that combustion chamber uses.
Another object of the present utility model is to provide a kind of engine for including above-mentioned high-pressure oil pump, what it can be well
Burning output power.
What embodiment of the present utility model was realized in：
High-pressure oil pump oil circuit, it includes oil transfer pump, the pump housing, inlet metering valve, flow-limiting valve, plunger assembly, delivery valve and is total to
Rail pipe；The pump housing includes pump housing inner chamber, and plunger assembly includes plunger cavity；Inlet metering valve includes setting gradually inlet valve forward horizontal stand
Chamber, oil-feed valve pocket and inlet valve back cavity；Oil-feed valve pocket includes import, first outlet and second outlet；The import of oil transfer pump with it is defeated
Oil pump inlet ductwork connects, and the outlet of oil transfer pump is connected with one end of oil transfer pump export pipeline, oil transfer pump export pipeline it is another
End is connected with the import of inlet valve forward horizontal stand chamber；The import that the outlet of inlet valve forward horizontal stand chamber passes through the first pipeline and oil-feed valve pocket
Connection；By plunger cavity pipeline and the inlet communication of plunger cavity, the outlet of plunger cavity passes through fuel-displaced the first outlet of oil-feed valve pocket
The inlet communication of valve pipeline and delivery valve, the outlet of delivery valve and the import of common rail pipe connect；The second outlet of inlet valve passes through
Second pipeline is connected with the import of inlet valve back cavity, and the outlet of inlet valve back cavity is connected by the 3rd pipeline and oil transfer pump inlet ductwork
Connect；The import of flow-limiting valve pipeline is connected with oil transfer pump export pipeline, and the outlet of flow-limiting valve pipeline is connected with pump housing inner chamber；Flow-limiting valve
It is arranged on flow-limiting valve pipeline；The import of 4th pipeline is connected with pump housing inner chamber, outlet and the oil transfer pump inlet tube of the 4th pipeline
Road connects；Flow-limiting valve is the sliding valve structure with cutoff hole；Inlet valve is by solenoid valve control, and inlet valve is normally open valve.
Such high-pressure pump oil circuit has with cutoff hole and has the flow-limiting valve of multistage Opening pressure；Using directly control into
The magnetic valve of fuel tap switch, saves space, reduces gap of damming；A set of brand-new oil return circuit, there is multiple cutoff holes and list
To valve, each oil pocket of UNICOM, steady pressure fuel pump, increase exhaust efficiency, lift oil pump performance.Such mode is exactly based on,
It can just be stablized by high-pressure oil pump oil circuit, stable fluid.
In a kind of embodiment of the present utility model：
Above-mentioned oil transfer pump is sliding-vane pump.
In a kind of embodiment of the present utility model：
Above-mentioned inlet valve and delivery valve are integrated on pump cover.
In a kind of embodiment of the present utility model：
The first check valve is provided with above-mentioned delivery valve pipeline, the first check valve is constructed such that fluid from plunger cavity to altogether
The flowing in the direction of rail pipe.
In a kind of embodiment of the present utility model：
Be provided with the second check valve on above-mentioned 3rd pipeline, the second check valve be constructed such that fluid from inlet valve back cavity to
The direction flowing of oil transfer pump.
In a kind of embodiment of the present utility model：
Above-mentioned high-pressure oil pump oil circuit also includes filter screen, and filter screen is arranged in oil transfer pump inlet ductwork；
In oil transfer pump inlet ductwork, filter screen be located at the node of the 4th pipeline and oil transfer pump inlet ductwork, the 3rd pipeline with
Between the node of oil transfer pump inlet ductwork.
In a kind of embodiment of the present utility model：
Above-mentioned high-pressure oil pump oil circuit also includes drive shaft, and plunger assembly includes plunger cavity and the post being arranged in plunger cavity
Plug；
Drive shaft drives plunger to be moved back and forth in plunger cavity.
In a kind of embodiment of the present utility model：
Above-mentioned high-pressure oil pump oil circuit also includes tappet, and drive shaft is camshaft；
Drive shaft drives plunger to be moved back and forth in plunger cavity by tappet.
A kind of high-pressure oil pump, it includes above-mentioned high-pressure oil pump oil circuit.
Just energy output is steady, reaches the hydraulic oil of preset requirement by above-mentioned high-pressure oil pump oil circuit for such high-pressure oil pump
Liquid.
A kind of engine, it includes car running computer and above-mentioned high-pressure oil pump；Car running computer is connected with magnetic valve, common rail pipe
It is connected with the delivery valve of high-pressure oil pump；Common rail pressure and actual common rail pressure of the car running computer according to setting, operate magnetic valve
The aperture of inlet valve is controlled to adjust oil pump feed, to control rail pressure.
Specifically, car running computer (i.e. ECU, also known as electronic control unit) is connected with magnetic valve, according to default program control
Break-make, the aperture of solenoid valve control inlet valve processed, on the one hand adapt to the movement of plunger；On the other hand oil pressure is adjusted out, and then
With the rail pressure needed.
The beneficial effect of the utility model embodiment is：
High-pressure oil pump oil circuit, it includes oil transfer pump, the pump housing, inlet metering valve, flow-limiting valve, plunger assembly, delivery valve and is total to
Rail pipe.Such high-pressure pump oil circuit has with cutoff hole and has the flow-limiting valve of multistage Opening pressure；Using directly control oil-feed
The magnetic valve of threshold switch, space is saved, reduce gap of damming；A set of brand-new oil return circuit, with multiple cutoff holes and unidirectionally
Valve, each oil pocket of UNICOM, steady pressure fuel pump, increase exhaust efficiency, lift oil pump performance.Such mode is exactly based on, is led to
Cross high-pressure oil pump oil circuit just can be stablized, stable fluid.
A kind of high-pressure oil pump, it includes above-mentioned high-pressure oil pump oil circuit.Such high-pressure oil pump passes through above-mentioned hydraulic oil
Just energy output is steady on pump oil road, reaches the high-voltage oil liquid of preset requirement.
A kind of engine, it includes car running computer and above-mentioned high-pressure oil pump；Car running computer is connected with magnetic valve, common rail pipe
It is connected with the delivery valve of high-pressure oil pump；Common rail pressure and actual common rail pressure of the car running computer according to setting, operate magnetic valve
The aperture of inlet valve is controlled to adjust oil pump feed, to control rail pressure.Car running computer is connected with magnetic valve, according to default program
Break-make, the aperture of solenoid valve control inlet valve are controlled, on the one hand adapts to the movement of plunger；On the other hand oil pressure is adjusted out, entered
And the rail pressure to be needed.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 provides a kind of structural representation of high-pressure oil pump oil circuit for the present embodiment.
Fig. 2 is the structural representation of inlet valve in the present embodiment；
Fig. 3 is the schematic diagram of plunger assembly in the present embodiment；
Fig. 4 is the schematic diagram of flow-limiting valve in Fig. 1.
Icon：10- high-pressure oil pump oil circuits；11- oil transfer pumps；12- inlet metering valves；121- inlet valve forward horizontal stand chambers；122-
Oil-feed valve pocket；1221- first outlets；1222- second outlets；123- inlet valve back cavities；13- plunger assemblies；14- delivery valves；15-
Common rail pipe；16- plunger cavities；17- filter screens；18- flow-limiting valves；19- pump housings inner chamber；201- oil transfer pump inlet ductworks；202- oil transfer pumps
Export pipeline；301- flow-limiting valve pipelines；The pipelines of 401- first；The pipelines of 402- second；The pipelines of 403- the 3rd；The pipelines of 404- the 4th；
The check valves of 501- first；The check valves of 502- second.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of.
Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
, it is necessary to explanation in description of the present utility model, if occur term " " center ", " on ", " under ", " left side ",
The orientation or position relationship of the instruction such as " right side ", " vertical ", " level ", " interior ", " outer " are based on orientation shown in the drawings or position
Relation, or the utility model product using when the orientation usually put or position relationship, be for only for ease of and describe this reality
With new and simplify description, rather than instruction or imply that signified device or element there must be specific orientation, with specific
Azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ", " second ", " the 3rd "
Described etc. being only used for distinguishing, and it is not intended that instruction or hint relative importance.
If it is not offered as requiring part abswolute level or outstanding in addition, there is the term such as term " level ", " vertical ", " pendency "
Hang down, but can be slightly tilted.Such as " level " only refers to that its direction is more horizontal with respect to for " vertical ", is not to represent to be somebody's turn to do
Structure must be fully horizontal, but can be slightly tilted.
In description of the present utility model, it is also necessary to explanation, unless otherwise clearly defined and limited, if there is art
Language " setting ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or detachably
Connection, or be integrally connected；Can be mechanical connection or electrical connection；Can be joined directly together, centre can also be passed through
Medium is indirectly connected, and can be the connection of two element internals.For the ordinary skill in the art, can specific feelings
Condition understands concrete meaning of the above-mentioned term in the utility model.
Embodiment
Fig. 1 is refer to, Fig. 1 provides a kind of structural representation of high-pressure oil pump oil circuit 10 for the present embodiment.Hydraulic oil pump oil
Road 10, it includes oil transfer pump 11, the pump housing, inlet metering valve 12, plunger assembly 13, delivery valve 14 and common rail pipe 15.
Further, the pump housing includes pump housing inner chamber 19, and plunger assembly 13 includes plunger cavity 16；Inlet metering valve 12 include according to
Secondary setting inlet valve forward horizontal stand chamber 121, oil-feed valve pocket 122 and inlet valve back cavity 123；Oil-feed valve pocket 122 goes out including import, first
Mouth 1221 and second outlet 1222；
The import of oil transfer pump 11 is connected with the inlet ductwork of oil transfer pump 11, outlet and the export pipeline of oil transfer pump 11 of oil transfer pump 11
One end connection, the other end of the export pipeline of oil transfer pump 11 is connected with the import of inlet valve forward horizontal stand chamber 121；Inlet valve forward horizontal stand
The outlet of chamber 121 is connected by the first pipeline 401 with the import of oil-feed valve pocket 122；
The first outlet 1221 of oil-feed valve pocket 122 passes through the pipeline of plunger cavity 16 and the inlet communication of plunger cavity 16, plunger cavity
By the inlet communication of the pipeline of delivery valve 14 and delivery valve 14, the outlet of delivery valve 14 connects with the import of common rail pipe 15 for 16 outlet
Connect；The second outlet 1222 of inlet valve is connected by the second pipeline 402 with the import of inlet valve back cavity 123, inlet valve back cavity 123
Outlet be connected by the 3rd pipeline 403 with the inlet ductwork of oil transfer pump 11；
The import of the pipeline of flow-limiting valve 18 is connected with the export pipeline of oil transfer pump 11, outlet and the pump housing inner chamber of the pipeline of flow-limiting valve 18
19 connections；Flow-limiting valve 18 is arranged on the pipeline of flow-limiting valve 18；The import of 4th pipeline 404 is connected with pump housing inner chamber 19, the 4th pipe
The outlet on road 404 is connected with the inlet ductwork of oil transfer pump 11；Flow-limiting valve 18 is the sliding valve structure with cutoff hole；Inlet valve passes through electricity
Magnet valve controls, and inlet valve is normally open valve.
Such high-pressure pump oil circuit has with cutoff hole and has the flow-limiting valve 18 of multistage Opening pressure；Using directly control
The magnetic valve of oil-feed threshold switch, space is saved, reduce gap of damming；A set of brand-new oil return circuit, have multiple cutoff holes and
Check valve, each oil pocket of UNICOM, steady pressure fuel pump, increase exhaust efficiency, lift oil pump performance.It is exactly based on such side
Formula, it can just be stablized by high-pressure oil pump oil circuit 10, stable fluid.
Further, in the present embodiment of the present utility model, above-mentioned oil transfer pump 11 is sliding-vane pump.Sliding-vane pump small volume,
Simple in construction, dependable performance.
In the present embodiment, above-mentioned inlet valve and delivery valve 14 are integrated on pump cover.Such set-up mode is saved empty
Between.
With continued reference to Fig. 1, it is unidirectional in the present embodiment of the present utility model, on the above-mentioned pipeline of delivery valve 14 to be provided with first
Valve 501, the first check valve 501 are constructed such that flowing of the fluid from plunger cavity 16 to the direction of common rail pipe 15.
In the present embodiment of the present utility model, the second check valve 502 is provided with above-mentioned 3rd pipeline 403, second is single
It is constructed such that fluid flows from inlet valve back cavity 123 to the direction of oil transfer pump 11 to valve 502.
Reference picture 2, Fig. 2 are the structural representation of inlet valve in the present embodiment.In the present embodiment of the present utility model, on
Stating high-pressure oil pump oil circuit 10 also includes filter screen 17, and filter screen 17 is arranged in the inlet ductwork of oil transfer pump 11；In the inlet tube of oil transfer pump 11
Lu Shang, filter screen 17 is positioned at the 4th pipeline 404 and the node, the 3rd pipeline 403 and the import of oil transfer pump 11 of the inlet ductwork of oil transfer pump 11
Between the node of pipeline.
Reference picture 3, Fig. 3 are the schematic diagram of plunger assembly 13 in the present embodiment.It is from figure 3, it can be seen that new in this practicality
In the present embodiment of type, above-mentioned high-pressure oil pump oil circuit 10 also includes drive shaft, and plunger assembly 13 includes plunger cavity 16 and is arranged on
Plunger in plunger cavity 16；Drive shaft drives plunger to be moved back and forth in plunger cavity 16.
In the present embodiment of the present utility model, above-mentioned high-pressure oil pump oil circuit 10 also includes tappet, and drive shaft is camshaft；
Drive shaft drives plunger to be moved back and forth in plunger cavity 16 by tappet.Tappet dependable performance, have preferably in automobile manufacturing field
Use experience.
Fig. 4 is the schematic diagram of flow-limiting valve 18 in Fig. 1, from Fig. 4 it will be clear that between flow-limiting valve 18 and delivery pump
Fluid flowing.
The present embodiment also provides a kind of high-pressure oil pump, and it includes above-mentioned high-pressure oil pump oil circuit 10.Such high-pressure oil pump
By above-mentioned high-pressure oil pump oil circuit 10, just energy output is steady, reaches the high-voltage oil liquid of preset requirement.
The present embodiment also provides a kind of engine, and it includes car running computer and above-mentioned high-pressure oil pump；Car running computer and electricity
Magnet valve is connected, and common rail pipe 15 is connected with the delivery valve 14 of high-pressure oil pump；Car running computer is according to the common rail pressure of setting and actual
Common rail pressure, the aperture for operating solenoid valve control inlet valve adjusts oil pump feed, to control rail pressure.Specifically, car running computer
(i.e. ECU, also known as electronic control unit) is connected with magnetic valve, according to the logical of default programme-control solenoid valve control inlet valve
Disconnected, aperture, on the one hand adapt to the movement of plunger；On the other hand oil pressure, and then the rail pressure to be needed are adjusted out.
Preferred embodiment of the present utility model is these are only, is not limited to the utility model, for this area
Technical staff for, the utility model can have various modifications and variations.It is all within the spirit and principles of the utility model,
Any modification, equivalent substitution and improvements made etc., should be included within the scope of protection of the utility model.
Claims (10)
- A kind of 1. high-pressure oil pump oil circuit, it is characterised in that：Including oil transfer pump, the pump housing, inlet metering valve, flow-limiting valve, plunger assembly, delivery valve and common rail pipe；The pump housing includes pump housing inner chamber, and the plunger assembly includes plunger cavity；The inlet metering valve include set gradually into Fuel tap forward horizontal stand chamber, oil-feed valve pocket and inlet valve back cavity；The oil-feed valve pocket includes import, first outlet and second outlet；The import of the oil transfer pump is connected with oil transfer pump inlet ductwork, the outlet of the oil transfer pump and the one of oil transfer pump export pipeline End connection, the other end of the oil transfer pump export pipeline are connected with the import of the inlet valve forward horizontal stand chamber；The outlet of the inlet valve forward horizontal stand chamber is connected by the first pipeline with the import of the oil-feed valve pocket；The oil-feed valve pocket First outlet by the inlet communication of plunger cavity pipeline and the plunger cavity, the outlet of the plunger cavity passes through delivery valve pipeline With the inlet communication of the delivery valve, the outlet of the delivery valve is connected with the import of the common rail pipe；The of the inlet valve Two outlets are connected by the second pipeline with the import of the inlet valve back cavity, and the outlet of the inlet valve back cavity passes through the 3rd pipeline It is connected with the oil transfer pump inlet ductwork；The import of flow-limiting valve pipeline is connected with oil transfer pump export pipeline, and the outlet of the flow-limiting valve pipeline connects with the pump housing inner chamber Connect；The flow-limiting valve is arranged on the flow-limiting valve pipeline；The import of 4th pipeline is connected with the pump housing inner chamber, and the described 4th The outlet of pipeline is connected with the oil transfer pump inlet ductwork；The flow-limiting valve is the sliding valve structure with cutoff hole；The inlet valve is by solenoid valve control, and the inlet valve is Normally open valve.
- 2. high-pressure oil pump oil circuit according to claim 1, it is characterised in that：The oil transfer pump is sliding-vane pump.
- 3. high-pressure oil pump oil circuit according to claim 1, it is characterised in that：The inlet valve and the delivery valve are integrated on pump cover.
- 4. high-pressure oil pump oil circuit according to claim 1, it is characterised in that：The first check valve is provided with the delivery valve pipeline, first check valve is constructed such that fluid from the plunger cavity Flowing to the direction of common rail pipe.
- 5. high-pressure oil pump oil circuit according to claim 1, it is characterised in that：The second check valve is provided with 3rd pipeline, second check valve is constructed such that fluid after the inlet valve Chamber flows to the direction of the oil transfer pump.
- 6. high-pressure oil pump oil circuit according to claim 5, it is characterised in that：The high-pressure oil pump oil circuit also includes filter screen, and the filter screen is arranged in the oil transfer pump inlet ductwork；In the oil transfer pump inlet ductwork, the filter screen is located at the section of the 4th pipeline and the oil transfer pump inlet ductwork Between the node of point, the 3rd pipeline and the oil transfer pump inlet ductwork.
- 7. high-pressure oil pump oil circuit according to claim 1, it is characterised in that：The high-pressure oil pump oil circuit also includes drive shaft, and the plunger assembly includes plunger cavity and the post being arranged in plunger cavity Plug；The drive shaft drives the plunger to be moved back and forth in the plunger cavity.
- 8. high-pressure oil pump oil circuit according to claim 7, it is characterised in that：The high-pressure oil pump oil circuit also includes tappet, and the drive shaft is camshaft；The drive shaft drives the plunger to be moved back and forth in the plunger cavity by tappet.
- A kind of 9. high-pressure oil pump, it is characterised in that：Including the high-pressure oil pump oil circuit described in any one in claim 1-8.
- A kind of 10. engine, it is characterised in that：Including the high-pressure oil pump described in car running computer and claim 9；The car running computer is connected with the magnetic valve, and the common rail pipe is connected with the delivery valve of the high-pressure oil pump；Common rail pressure and actual common rail pressure of the car running computer according to setting, operate the aperture of solenoid valve control inlet valve To adjust oil pump feed, to control rail pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720823493.8U CN206917778U (en) | 2017-07-07 | 2017-07-07 | High-pressure oil pump oil circuit, high-pressure oil pump and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720823493.8U CN206917778U (en) | 2017-07-07 | 2017-07-07 | High-pressure oil pump oil circuit, high-pressure oil pump and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206917778U true CN206917778U (en) | 2018-01-23 |
Family
ID=61336296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720823493.8U Active CN206917778U (en) | 2017-07-07 | 2017-07-07 | High-pressure oil pump oil circuit, high-pressure oil pump and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206917778U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361138A (en) * | 2018-01-29 | 2018-08-03 | 中国第汽车股份有限公司 | High-pressure common-rail pipe flow-limiting valve diagnosis detecting method and device |
-
2017
- 2017-07-07 CN CN201720823493.8U patent/CN206917778U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361138A (en) * | 2018-01-29 | 2018-08-03 | 中国第汽车股份有限公司 | High-pressure common-rail pipe flow-limiting valve diagnosis detecting method and device |
| CN108361138B (en) * | 2018-01-29 | 2020-08-25 | 中国第一汽车股份有限公司 | Diagnosis and detection method and device for high-pressure common-rail pipe flow limiting valve |
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| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High -pressure oil pump oil circuit, high -pressure oil pump and engine Effective date of registration: 20190730 Granted publication date: 20180123 Pledgee: Liaoning Xinfeng Real Estate Development Co.,Ltd. Pledgor: LIAOYANG XINFENG TECHNOLOGY CO.,LTD.|LIAONING XINFENG ENTERPRISE GROUP DALIAN YITE SCIENCE & TECHNOLOGY CO.,LTD. Registration number: 2019210000025 |
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Effective date of registration: 20200922 Granted publication date: 20180123 |
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Date of cancellation: 20230922 Granted publication date: 20180123 |