CN208330603U - A kind of high voltage common rail pump and the disengaging oil valve assembly for it - Google Patents
A kind of high voltage common rail pump and the disengaging oil valve assembly for it Download PDFInfo
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- CN208330603U CN208330603U CN201721881759.0U CN201721881759U CN208330603U CN 208330603 U CN208330603 U CN 208330603U CN 201721881759 U CN201721881759 U CN 201721881759U CN 208330603 U CN208330603 U CN 208330603U
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Abstract
The utility model provides a kind of disengaging oil valve assembly, including oil-inlet mechanism and oil outlet mechanism, oil-inlet mechanism includes oil inlet valve seat, oil inlet spool and inlet valve elastomeric element, oil inlet valve seat top offers the interior pilot hole communicated with fuel feed hole, oil inlet spool includes the sealing of back taper, the sealing of back taper realizes that the sealing with interior pilot hole open end cooperates under the action of inlet valve elastomeric element；Oil outlet mechanism includes delivery valve seat, fuel-displaced spool and delivery valve elastomeric element, the oil hole out communicated with pilot hole open end in oil-inlet mechanism is offered on delivery valve seat, fuel-displaced spool is globe valve, globe valve is realized and is cooperated with the sealing of oil hole oil outlet out under the action of delivery valve elastomeric element.The utility model additionally provides a kind of high voltage common rail pump, including the above-mentioned disengaging oil valve assembly for high voltage common rail pump.The processing is simple, it is easy to wear not allow for the disengaging oil valve assembly of the utility model, and seals tight；High voltage common rail pump, sealing is tight, and pressure is stablized.
Description
Technical field
The utility model relates to Common-rail technology fields, more particularly to a kind of high voltage common rail pump and for high voltage common rail pump
Pass in and out oil valve assembly.
Background technique
High-pressure common rail technology refers in the closed-loop system being made of high-pressure oil pump, pressure sensor and ECU, by jet pressure
High pressure fuel, is transported to public confession by high-pressure oil pump by the generation of power and a kind of course of injection fuel system completely separate from each other
Oil pipe, by realizing accurate control to the oil pressure in common feeder line, make the revolving speed of high pressure pipe pressure size and engine without
It closes, can significantly reduce Fuel Injection Mechanism of Diesel Engine pressure with the variation of engine speed, therefore also just reduce conventional diesel engine
Defect.
High-pressure pump is for being transported to common rail after fuel oil is pressurized to high pressure from low pressure.Plunger pump is widely used in high-pressure pump at present
Mode.Plunger pump moves back and forth in cylinder body by plunger, so that the volume of pressurization working lumen is changed to realize oil suction, pressure
Oil.Plunger pump has many advantages, such as that rated pressure is high, compact-sized, high-efficient and flow is easy to adjust.
Plunger pump includes plunger bushing and the plunger that can slide along plunger bushing, and the oil inlet being sequentially arranged in plunger bushing
Valve body, oil inlet spool, fuel-displaced valve body, fuel-displaced spool and delivery valve fasten seat.Oil inlet valve body and oil inlet spool constitute inlet valve
Unit, fuel-displaced valve body and fuel-displaced spool constitute fuel-displaced valve cell.Such as plunger is driven by cam mechanism, so that in plunger bushing
Fuel oil is sucked and is pressurizeed to it by middle reciprocating motion, then fastens seat for high pressure via fuel-displaced valve cell and delivery valve
Fuel oil is injected into common rail.
Its working principle is that: camshaft rotates to lower dead center process, and plunger downlink is oil-absorbing process, oily from oil inlet valve seat
Oil inlet passage enter, oil pressure counter oil inlet initial tension of spring opens oil inlet spool, and oil enters from oil inlet passage.Camshaft rotation
Top dead centre process is gone to, plunger uplink is pressure oil process, and oil is pressed into from plunger cavity by the interface channel of oil inlet valve seat, oil
Oil inlet spool is pushed back original position and blocks fuel feed hole by pressure, and pressure can open the delivery valve on delivery valve fastening seat to a certain extent
Core, oil are forced out.
Existing disengaging oil valve manufacturing procedure is cumbersome, and requirement on machining accuracy is high, and processing cost is higher, and use process is easy
Cause because of abrasion poorly sealed.
Therefore, how founding one kind, the processing is simple, do not allow to be also easy to produce abrasion and sealing is strict for high voltage common rail pump
Disengaging oil valve assembly and the high voltage common rail pump comprising the component, become current industry urgent problem to be solved.
Utility model content
First technical problem to be solved in the utility model is to provide a kind of disengaging oil valve for high voltage common rail pump, makes
The processing is simple for it, does not allow to be also easy to produce abrasion, and seals tightly, to overcome existing disengaging oil valve manufacturing procedure cumbersome, processes
Required precision is high, and use process is easy to lead to poorly sealed deficiency because of abrasion.
In order to solve the above technical problems, the utility model provides a kind of disengaging oil valve assembly for high voltage common rail pump,
Including oil-inlet mechanism and oil outlet mechanism, the oil-inlet mechanism includes oil inlet valve seat, oil inlet spool and inlet valve elastomeric element, described
Oil inlet valve seat top offers the interior pilot hole communicated with fuel feed hole, and the oil inlet spool includes the sealing of back taper, described
The sealing of back taper realizes that the sealing with the interior pilot hole open end is matched under the action of the inlet valve elastomeric element
It closes；The oil outlet mechanism includes delivery valve seat, fuel-displaced spool and delivery valve elastomeric element, is offered on the delivery valve seat and institute
The oil hole out that pilot hole open end in oil-inlet mechanism communicates is stated, the fuel-displaced spool is globe valve, and the globe valve is described
Under the action of delivery valve elastomeric element, realizes and cooperate with the sealing of the oil hole oil outlet out.
As a kind of improvement of the utility model, the oil outlet of the oil hole out is provided with interior curved guiding surface, described interior
Curved guiding surface matches with the globe valve.
Be further improved, the open end of the interior pilot hole is provided with interior guiding surface, the interior guiding surface with it is described
The sealing of back taper matches.
It is further improved, the inlet valve elastomeric element includes oil inlet valve spring retainer and oil inlet valve spring, the inlet valve
Spring base is fixed in the oil hole out, and through-hole, the inlet valve are offered at oil inlet valve spring retainer center
Spring is volute spring, and the necking end of the volute spring is connect with the oil inlet spool, the flared end of the volute spring with
The oil inlet valve spring retainer connection.
Be further improved, it is described go out oil hole from oil inlet end successively include diversion cavity section, undergauge section and fuel-displaced to oil outlet
Section, the diversion cavity section are conical cavity, are also provided with the connecting hole being connected to the conical cavity, the company on the oil inlet valve seat
The other end in hole is connect for being connected to plunger working chamber；The oil inlet valve spring retainer is fixed at the undergauge section, it is described into
The peripheral shape of oil valve spring base and the inner wall shape of the undergauge section match.
It is further improved, the oil inlet spool further includes the guide part for being set to the sealing bottom end, the guide part
It is moved axially along the interior pilot hole；Axially directed slot is offered on the guide part, and the guide part is close to the sealing
Portion's bottom end is also provided with annular groove, and one end of the axially directed slot is connected to the annular groove, the other end with it is described
Interior pilot hole bottom end connection, the interior pilot hole bottom end is connected to the fuel feed hole.
It is further improved, the bottom end of the guide part is circumferentially arranged guiding surface.
It is further improved, the oil outlet mechanism further includes delivery valve fastening seat, and the delivery valve fastening seat offers and institute
The high pressure oil outlet that oil hole communicates is stated out, the delivery valve elastomeric element includes oil outlet valve spring seat and oil outlet valve spring, institute
It states oil outlet valve spring seat to be fixed in the high pressure oil outlet, and offers through-hole at oil outlet valve spring seat center,
One end of the oil outlet valve spring is connect with the globe valve, and the other end is connect with the oil outlet valve spring seat.
It is further improved, is fixedly connected between the delivery valve seat and the oil inlet valve seat by spring column pin.
Second technical problem to be solved in the utility model is to provide a kind of high voltage common rail pump, keeps its sealing tight, supplies
Oil pressure is stablized, and solves the easy because of disengaging oil valve abrasion of existing high voltage common rail pump, and causes poorly sealed, charge oil pressure not
Steady problem.
In order to solve the above technical problems, the utility model additionally provides a kind of high voltage common rail pump, including above-mentioned for height
The disengaging oil valve assembly of common rail pump is pressed, the disengaging oil valve assembly is arranged in the plunger bushing of the high voltage common rail pump, and in institute
State the lower oil inlet for realizing high pressure fuel of plunger effect of high voltage common rail pump and fuel-displaced.
After above-mentioned design, the utility model at least has the following advantages:
1, oil inlet spool includes the sealing of back taper, and the interior pilot hole on sealing and oil inlet valve seat matches；It is fuel-displaced
Spool is globe valve, and globe valve is matched with the oil hole that goes out of delivery valve seat；Using the disengaging oil valve of spherical structure on above-mentioned lower cone
The processing is simple for component, it is not easy to wear, and seal tight.
2, the requirement of the concentricity of the interior curved guiding surface matched with globe valve and oil hole out is relatively low, and the processing is simple,
It is beneficial to improve production efficiency, reduces production cost.
3, the volute spring stability is good, long service life, it is not easy to, can be continual and steady because fatigue generates lateral bending
Holding oil inlet spool moved along the axis direction of spring, avoid wearing.
4, guide part is moved axially along interior pilot hole, be can avoid oil inlet spool and is generated lateral deviation and abrasion, guide groove both ends point
Not Lian Tong annular groove and interior pilot hole bottom, oil inlet process oil can from interior pilot hole bottom end by guide groove and annular it is recessed
Slot enters oil hole, keeps oil inlet process more smooth.
5, the spring column pin and oil inlet valve seat and delivery valve seat are interference fitted, and bonding strength is higher, can be avoided inlet valve
Seat and delivery valve seat separate under elastic force or pressure effect.
6, since the disengaging oil valve assembly does not allow easy to wear and sealing tight, make the high pressure for being equipped with the disengaging oil valve assembly
Common rail pump, sealing is tight, and charge oil pressure is stablized.
Detailed description of the invention
Above-mentioned is only the general introduction of technical solutions of the utility model, in order to better understand the technology hand of the utility model
Section, below in conjunction with attached drawing, the utility model is described in further detail with specific embodiment.
Fig. 1 is the partial structure diagram of the disengaging oil valve assembly of the utility model；
Fig. 2 is the partial structure diagram of the high voltage common rail pump of the utility model；
Wherein, 1, plunger bushing, 2, plunger working chamber, 3, annular groove, 4, oil inlet valve seat, 5, connecting hole, 6, fuel feed hole, 7, interior lead
Xiang Kong, 8, oil inlet spool, 9, spring column pin, 10, oil inlet valve spring, 11, oil inlet valve spring retainer, 12, delivery valve seat, 13, water conservancy diversion
Chamber section, 14, undergauge section, 15, fuel-displaced section, 16, fuel-displaced spool, 17, oil outlet valve spring, 18, oil outlet valve spring seat, 19, delivery valve
Fasten seat, 20, high pressure oil outlet.
Specific embodiment
As depicted in figs. 1 and 2, the present embodiment be used for high voltage common rail pump disengaging oil valve assembly, including oil-inlet mechanism and go out
Oil machine structure.In actual use, oil-inlet mechanism and oil outlet mechanism are installed in the plunger bushing 1 of high voltage common rail pump, oil-inlet mechanism with
The counterbore bottom surface that 1 open end of plunger bushing opens up matches, and oil outlet mechanism is connected to the top of oil-inlet mechanism.
Specifically, oil-inlet mechanism includes: oil inlet valve seat 4, oil inlet spool 8 and inlet valve elastomeric element.
4 top of oil inlet valve seat is provided in the axial direction with interior pilot hole 7, and the bottom end of the interior pilot hole 7 is connected with fuel feed hole 6,
Fuel feed hole 6 is arranged radially along oil inlet valve seat 4, and the open end of interior pilot hole 7 is provided with interior guiding surface.
Oil inlet spool 8 is disposed with the sealing and guide part of column interconnecting piece, back taper from top to bottom end.It should fall
The sealing of taper matches the effect purpose realized and seal interior pilot hole 7 with interior guiding surface.
Guide part is arranged in the interior pilot hole 7 of oil inlet valve seat 4, and can move axially along interior pilot hole 7, avoids inlet valve
Core 8 generates lateral deviation relative to interior pilot hole 7, and then avoids therefore generating abrasion.It is opened up on guide part close to sealing bottom end
There is annular groove.Axially directed slot is offered on the periphery of guide part, one end of axially directed slot is connected with annular groove,
The other end is connected to interior 7 bottom end of pilot hole.By setting guide groove and annular groove, keep oil inlet process more smooth.Further
, the bottom end of guide part is circumferentially arranged guiding surface, keeps the edge of guide part gentle by the way that guiding surface is arranged, Neng Goujin
One step reduces the degree of wear between guide part and interior pilot hole 7.
Column interconnecting piece is set to the top of sealing, and the diameter of the column interconnecting piece is less than the diameter of sealing, and with
Sealing forms stepped ramp type structure.
Inlet valve elastomeric element includes oil inlet valve spring retainer 11 and oil inlet valve spring 10.Oil inlet valve spring 10 in the present embodiment
For volute spring, flared end is connect with oil inlet valve spring retainer 11, and necking end is socketed on the column interconnecting piece of oil inlet spool 8
On.Volute spring stability is good, long service life, it is not easy to because fatigue generate lateral bending, can be avoided oil inlet spool 8 and into
Abrasion is generated between oil valve seat 4.Oil inlet valve spring 10 is used to push to oil inlet spool 8 oil inlet valve seat 4, and oil inlet valve spring retainer 11 is used
In support oil inlet valve spring 10.
The oil outlet mechanism of the disengaging oil valve assembly includes: delivery valve seat 12, fuel-displaced spool 16, delivery valve elastomeric element and goes out
Oil valve fastens seat 19.
The bottom end of delivery valve seat 12 is connected with the top of oil inlet valve seat 4, and the top of delivery valve seat 12 and delivery valve fasten
Seat 19 is connected.Offer out oil hole in delivery valve seat 12, should go out oil hole from oil inlet end to oil outlet successively include water conservancy diversion
Chamber section 13, undergauge section 14 and fuel-displaced section 15.The oil outlet of oil hole is equipped with interior curved guiding surface out, and fuel-displaced spool 16 is globe valve,
The globe valve matches the purpose realized and seal oil hole with interior curved guiding surface.The diversion cavity section 13 of oil hole is taper out
Chamber, the bottom end of the conical cavity, that is, the oil inlet end of oil hole is connected with 7 open end of interior pilot hole on oil inlet valve seat 4 out,
Also along connecting hole 5 is axially arranged on oil inlet valve seat 4,5 one end of connecting hole is connected to conical cavity, and the other end is used for and plunger working chamber
2 connections.Oil inlet process oil enters plunger working chamber 2 by interior pilot hole 7, diversion cavity section 13, connecting hole 5, and fuel-displaced process oil is logical
It crosses plunger working chamber 2, connecting hole 5, diversion cavity section 13, undergauge section 14 and enters fuel-displaced section 15.
The undergauge section 14 of oil hole out, the peripheral shape and undergauge of oil inlet valve spring retainer 11 is arranged in oil inlet valve spring retainer 11
The inner wall shape of section 14 matches, and to keep undergauge section 14 to be connected to fuel-displaced section 15, opens up at the center of oil inlet valve spring retainer 11
There is through-hole.
High pressure oil outlet 20 is offered in delivery valve fastening seat 19, it is fuel-displaced logical on high pressure oil outlet 20 and delivery valve seat 12
Hole communicates.Delivery valve elastomeric element includes oil outlet valve spring 17 and oil outlet valve spring seat 18, and oil outlet valve spring seat 18 is arranged in height
It extrudes in oilhole 20.To avoid blocking high pressure oil outlet 20, oil outlet valve spring seat offers through-hole, oil outlet valve spring at 18 center
Seat 18 includes base portion and bar portion, and base portion is connect with the inner wall of high pressure oil outlet 20, one end of bar portion and oil outlet valve spring 17
Connection, the other end of oil outlet valve spring 17 are connect with globe valve.
Bar portion through-hole is offered on the side wall of bar portion, the bar portion through-hole and high pressure oil outlet 20 and oil outlet valve spring seat 18
Through-hole is connected, and the connection area being capable of increasing between the through-hole of oil outlet valve spring seat 18 and high pressure oil outlet 20 avoids spherical shape
Oil circuit is caused to block when the through-hole bottom end of the valve plug plug oil outlet valve spring seat 18.
In addition, specifically being connected by spring column pin 9 between the bottom end of delivery valve seat 12 and the top of oil inlet valve seat 4, bullet
Property pin 9 and oil inlet valve seat 4 and delivery valve seat 12 between for interference fit, bonding strength can be improved, avoid oil inlet valve seat 4 and go out
Oil valve seat 12 separates under the action of elastic force and pressure.
Cooperating shown in Fig. 2, the utility model additionally provides a kind of high voltage common rail pump, including above-mentioned disengaging oil valve assembly,
The oil-inlet mechanism and oil outlet mechanism of the disengaging oil valve assembly are installed in the plunger bushing 1 of high voltage common rail pump, the bottom of oil inlet valve seat 4
The counterbore bottom surface opened up with 1 open end of plunger bushing is held to match, the connecting hole 5 on oil inlet valve seat 4 passes through on counterbore bottom surface
Annular groove 3 is connected with plunger working chamber 2, and delivery valve fastens seat 19 and the inner wall of plunger bushing 1 is tightly connected.
The specific work process of the high voltage common rail pump is as follows:
Oil inlet process: when beginning, oil inlet spool 8 and fuel-displaced spool 16 are in sealing station, i.e., push against inlet valve respectively
The interior curved guiding surface on interior guiding surface and delivery valve seat 12 on seat 4.Camshaft rotates to lower dead center process, plunger downlink,
Oil hole internal pressure power declines out, and the pressure that oil inlet spool 8 is located at 13 side of diversion cavity section also declines therewith.Oil is from oil inlet valve seat 4
Interior pilot hole 7 enter, 10 pretightning force of oil pressure counter oil inlet valve spring opens oil inlet spool 8, into the diversion cavity of oil hole out
Section 13, and plunger working chamber 2 is entered by connecting hole 5.
Fuel-displaced process: oil inlet spool 8 is in an open position at this time, and fuel-displaced spool 16 is in the close position.Camshaft rotation
To top dead centre process, plunger uplink, oil is pressed into out oil hole by connecting hole 5 from plunger working chamber 2, out oil hole internal pressure power
Rise, oil inlet spool 8 blocks interior pilot hole 7 again under the action of elastic force and pressure, so as to form a confined space.
With plunger uplink goes out the pressure in oil hole can be further up, when pressure will open fuel-displaced spool 16 to a certain extent,
Oil enters high pressure oil outlet 20 by going out oil hole, is transported to common rail finally by high pressure oil outlet 20.
Subsequently, as pressure declines in oil outlet, fuel-displaced spool 16 can block again under the action of oil outlet valve spring 17
Firmly go out oil hole.Above-mentioned two process is circulating repetition to high voltage common rail pump in actual work.
The disengaging oil valve assembly of the utility model, the processing is simple, it is easy to wear not allow and sealing is tight, is equipped with disengaging oil
The high voltage common rail pump of valve module, sealing is tight, and charge oil pressure is stablized.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, those skilled in the art make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above,
It falls within the protection scope of the present utility model.
Claims (10)
1. a kind of disengaging oil valve assembly for high voltage common rail pump, including oil-inlet mechanism and oil outlet mechanism, it is characterised in that:
The oil-inlet mechanism includes oil inlet valve seat, oil inlet spool and inlet valve elastomeric element, and oil inlet valve seat top offers
The interior pilot hole communicated with fuel feed hole, the oil inlet spool include the sealing of back taper, and the sealing of the back taper is in institute
Under the action of stating inlet valve elastomeric element, realize that the sealing with the interior pilot hole open end cooperates；
The oil outlet mechanism includes delivery valve seat, fuel-displaced spool and delivery valve elastomeric element, offered on the delivery valve seat with
What pilot hole open end communicated in the oil-inlet mechanism goes out oil hole, and the fuel-displaced spool is globe valve, and the globe valve is in institute
Under the action of stating delivery valve elastomeric element, realizes and cooperate with the sealing of the oil hole oil outlet out.
2. the disengaging oil valve assembly according to claim 1 for high voltage common rail pump, which is characterized in that the oil hole out
Oil outlet be provided with interior curved guiding surface, the interior curved guiding surface matches with the globe valve.
3. the disengaging oil valve assembly according to claim 1 for high voltage common rail pump, which is characterized in that the interior pilot hole
Open end be provided with interior guiding surface, the sealing of the interior guiding surface and the back taper matches.
4. the disengaging oil valve assembly according to claim 1 for high voltage common rail pump, which is characterized in that the inlet valve bullet
Property component include oil inlet valve spring retainer and oil inlet valve spring, the oil inlet valve spring retainer be fixed at it is described go out oil hole in,
And through-hole is offered at oil inlet valve spring retainer center, the oil inlet valve spring is volute spring, the contracting of the volute spring
Mouth end is connect with the oil inlet spool, and the flared end of the volute spring is connect with the oil inlet valve spring retainer.
5. the disengaging oil valve assembly according to claim 4 for high voltage common rail pump, which is characterized in that the oil hole out
It successively include diversion cavity section, undergauge section and fuel-displaced section to oil outlet from oil inlet end, the diversion cavity section is conical cavity, the oil inlet
The connecting hole being connected to the conical cavity is also provided on valve seat, the other end of the connecting hole is used to connect with plunger working chamber
It is logical；
The oil inlet valve spring retainer is fixed at the undergauge section, the peripheral shape of the oil inlet valve spring retainer and the undergauge
The inner wall shape of section matches.
6. the disengaging oil valve assembly according to claim 1 for high voltage common rail pump, which is characterized in that the oil inlet spool
It further include the guide part for being set to the sealing bottom end, the guide part is moved axially along the interior pilot hole；
Axially directed slot is offered on the guide part, and the guide part is also provided with annular close to the sealing bottom end
One end of groove, the axially directed slot is connected to the annular groove, and the other end is connected to the interior pilot hole bottom end, described
Interior pilot hole bottom end is connected to the fuel feed hole.
7. the disengaging oil valve assembly according to claim 6 for high voltage common rail pump, which is characterized in that the guide part
Bottom end is circumferentially arranged guiding surface.
8. the disengaging oil valve assembly according to claim 1 for high voltage common rail pump, which is characterized in that the oil outlet mechanism
Further include delivery valve fastening seat, delivery valve fastening seat offer with it is described go out the high pressure oil outlet that communicates of oil hole,
The delivery valve elastomeric element includes oil outlet valve spring seat and oil outlet valve spring, and the oil outlet valve spring seat is fixed at
In the high pressure oil outlet, and through-hole is offered at oil outlet valve spring seat center, one end of the oil outlet valve spring and institute
Globe valve connection is stated, the other end is connect with the oil outlet valve spring seat.
9. the disengaging oil valve assembly according to claim 1 for high voltage common rail pump, which is characterized in that the delivery valve seat
It is fixedly connected between the oil inlet valve seat by spring column pin.
10. a kind of high voltage common rail pump, which is characterized in that described in any item for high voltage common rail pump including claim 1-9
Oil valve assembly is passed in and out, the disengaging oil valve assembly is arranged in the plunger bushing of the high voltage common rail pump, and in the high-pressure common rail
The lower oil inlet for realizing high pressure fuel of plunger effect of pump and fuel-displaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721881759.0U CN208330603U (en) | 2017-12-28 | 2017-12-28 | A kind of high voltage common rail pump and the disengaging oil valve assembly for it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721881759.0U CN208330603U (en) | 2017-12-28 | 2017-12-28 | A kind of high voltage common rail pump and the disengaging oil valve assembly for it |
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| Publication Number | Publication Date |
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| CN208330603U true CN208330603U (en) | 2019-01-04 |
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ID=64788597
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| CN201721881759.0U Active CN208330603U (en) | 2017-12-28 | 2017-12-28 | A kind of high voltage common rail pump and the disengaging oil valve assembly for it |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989730A (en) * | 2017-12-28 | 2018-05-04 | 北京亚新科天纬油泵油嘴股份有限公司 | A kind of high voltage common rail pump and for its into oil outlet valve component |
-
2017
- 2017-12-28 CN CN201721881759.0U patent/CN208330603U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989730A (en) * | 2017-12-28 | 2018-05-04 | 北京亚新科天纬油泵油嘴股份有限公司 | A kind of high voltage common rail pump and for its into oil outlet valve component |
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Effective date of registration: 20190123 Address after: 300000 2 Yulong Road, automobile industrial park, Wuqing District, Tianjin Patentee after: North oil electronic control fuel injection system (Tianjin) Co., Ltd. Address before: No. 3, Cheng Zhuang Road, Fengtai District, Beijing Patentee before: Beijing Yaxin Ketianwei Oil Pume Nozzle Tip Co., Ltd. |