CN109386635A - Two-way valve and high-pressure pump for high-pressure pump - Google Patents
Two-way valve and high-pressure pump for high-pressure pump Download PDFInfo
- Publication number
- CN109386635A CN109386635A CN201710660256.9A CN201710660256A CN109386635A CN 109386635 A CN109386635 A CN 109386635A CN 201710660256 A CN201710660256 A CN 201710660256A CN 109386635 A CN109386635 A CN 109386635A
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- CN
- China
- Prior art keywords
- valve
- valve body
- way valve
- fixing seat
- tap
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/14—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with ball-shaped valve member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/44—Details of seats or valve members of double-seat valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0466—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with a special seating surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0493—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with a spring other than a helicoidal spring
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Check Valves (AREA)
Abstract
The present invention provides a kind of two-way valve for high-pressure pump, provides a kind of two-way valve for high-pressure pump, and the two-way valve is connected with the conveying chamber of high-pressure pump.The two-way valve includes shell, is set in the housing valve body, positioned at valve body side and the first fixing seat for being fixed on shell and the other side positioned at valve body and the second fixing seat for being fixed on shell.The connecting cavity that two-way valve is additionally provided with outlet and is connected to outlet with conveying chamber, the two-way valve includes tap and return port, and valve body can be along the axial movement of two-way valve.When valve body is located at first position, return port closure, tap is openable and is closed；When valve body is located at the second position, return port is opened, tap closure.The present invention also provides a kind of high-pressure pumps.The present invention opens and closes return port by the way that axially displaceable valve body is arranged, and the quantity of components can be reduced by the setting, reduces assembling difficulty.
Description
Technical field
The present invention relates to a kind of two-way valve, especially a kind of two-way valve for high-pressure pump.
Background technique
It in the prior art, is two individual valve bodies for the two-way valve of high-pressure pump and return valve, number of parts is more, production
Built-up time is long.And all parts are each attached on third party's shell of high-pressure oil pump, can not be individually pre-assembled to two-way
Valve or return valve.After each part of return valve is installed to high-pressure pump, the cracking pressure for adjusting return valve can not be continued.After assembling
If the cracking pressure of return valve does not meet expected open and requires, the high-pressure pump after assembling will be scrapped.
Chinese patent CN101432518B discloses a kind of high-pressure pump, and return port and tap are arranged on shell.
Although solving the problems, such as that pressure is excessive to damage, since component is excessive, so resulting in assembling trouble.
Summary of the invention
The object of the present invention is to provide a kind of amount of parts, and few, assembling is simply to the two-way valve and high pressure of high-pressure pump
Pump.
According to an aspect of the present invention, a kind of two-way valve for high-pressure pump is provided, the two-way valve and high-pressure pump
Conveying chamber is connected, and the two-way valve includes shell, the valve body that is set in the housing, is located at valve body side and is fixed to shell
On the first fixing seat and the other side positioned at valve body and the second fixing seat for being fixed on shell, two-way valve is additionally provided with out
Mouth and the connecting cavity for being connected to outlet with conveying chamber, the two-way valve includes tap and return port, and valve body can be along two-way
The axial movement of valve, when valve body is located at first position, return port closure, tap is openable and is closed；When valve seat position
When the second position, return port is opened, tap closure.
Preferably, in the outside of valve body, the second fixed seating is described in the inside of valve body for first fixed seating
Valve body and shell are face contact, the shell be used to be oriented to valve body so that valve body along shell axial movement.
Preferably, the tap is set on valve body, and the return port is set on shell or valve body.
It preferably, further include that between the first fixing seat and valve body and the of inward direction power can be applied to valve body
One elastic device, between the second fixing seat and valve body and can to valve body apply outward direction power the second elastic device
And between the second elastic device and valve body and it can block and open the valve ball of tap, in an inactive state, valve
Ball blocks tap, and valve body and the second fixing seat contact and block return port.
Preferably, the valve body includes cylindrical the first noumenon portion, from what the first noumenon portion vertically extended is in
Cylindric and diameter be less than the first noumenon portion the first extension, it is cylindrical at the same accommodate valve ball and can to valve ball rise guiding make
First hole and the second cylindrical hole, the first hole is connected with the second hole forms tap, and valve body is additionally provided with certainly
First hole is recessed the groove of formation outward, and the second hole is equipped with the first tapered surface close to the end face in the first hole, and the valve ball can be with the
One taper face contact is to block tap.
Preferably, first fixing seat include centre bore, protruding portion, on protruding portion for supporting valve body
Support division and the clearance groove between protruding portion to flow through for fuel oil, first extension and protruding portion connect for face
Touching is for playing the guiding role to valve body.
Preferably, second fixing seat is equipped with the first recirculation hole and confess for being provided from that the fuel oil that tap flows out flows through
Second recirculation hole of the fuel flow returns at mouthful place, equipped with third tapered surface, the valve ball can be with for the end face of second recirculation hole
Triconic face is in contact to block the second recirculation hole.
Preferably, second fixing seat further includes base portion and extends vertically from base portion and stretch to the second of the first hole to prolong
Extending portion, the second throughhole portions are located on the second extension.
Preferably, first elastic device includes two butterfly springs being set together, the described second fixed device
For cylindrical spring.
Preferably, the valve block is equipped with the second tapered surface, second fixing seat close to the end face of the second fixing seat
With the second taper face contact to block return port.
According to an aspect of the present invention, a kind of high-pressure pump is provided comprising conveying chamber, plunger, inlet valve and above-mentioned
Two-way valve.
Provided by the present invention for the two-way valve and high-pressure pump of high-pressure pump, including tap and return port, by setting
Axially displaceable valve body is set to open and close return port, the quantity of components can be reduced by the setting, is reduced
Assemble difficulty.
Detailed description of the invention
It is to provide further understanding of the invention including attached drawing, they are included and constitute part of this application,
Attached drawing shows the embodiment of the present invention, and plays the role of explaining the principle of the invention together with this specification.In attached drawing:
Fig. 1 is the schematic diagram of high-pressure pump of the invention；
Fig. 2 is the perspective view of the two-way valve for high-pressure pump of the invention；
Fig. 3 is the stereogram exploded view of the two-way valve for high-pressure pump of the invention；
Fig. 4 is the exploded sectional view of the two-way valve for high-pressure pump of the invention；
Fig. 5 be Fig. 4 in A-A to cross-sectional view；
Fig. 6 is cross-sectional view when fitting together of the two-way valve for high-pressure pump of the invention；
Fig. 7 is the enlarged drawing in Fig. 6 at B；
Fig. 8 a is the perspective view of valve body；
Fig. 8 b is the perspective view of another angle of valve body；
Fig. 9 a is the perspective view of the first fixing seat；
Fig. 9 b is the cross-sectional view of the first fixing seat；
Figure 10 a is the perspective view of the second fixing seat；
Figure 10 b is the cross-sectional view of the second fixing seat.
Specific embodiment
The embodiment of the present invention is described with detailed reference to attached drawing now.
It is shown in Figure 1, a kind of high-pressure pump comprising conveying chamber 9, plunger 8, inlet valve 10 and two-way valve 100.Pass through
Fuel oil is discharged through two-way valve 100 from conveying chamber 9 plunger 8 through 10 inspiration conveying chamber 9 of inlet valve, then by plunger 8 for fuel oil.It is double
It is connected to valve 100 with the conveying chamber 9 of high-pressure pump.
With further reference to shown in Fig. 2 to Fig. 7, a kind of two-way valve 100 for high-pressure pump comprising shell 1 is set to shell
Valve body 4 in 1, positioned at 4 side of valve body and the first fixing seat 2 for being fixed on shell 1 and positioned at the another of valve body 4
Side and the second fixing seat 7 being fixed on shell 1.Two-way valve 100 is additionally provided with outlet 12 and is connected to outlet 12 with conveying chamber 9
Connecting cavity 11.Two-way valve 100 further includes tap and return port.Valve body 4 can be moved along the axial a of two-way valve 100, work as valve
When pedestal 4 is located at first position, return port closure, tap is openable and is closed；When valve body 4 is located at the second position, return
Discharge orifice is opened, tap closure., can be excessive to avoid the pressure at outlet 12 by setting tap and return port, cause height
The damage of pressure system.
Connecting cavity 11 includes for accommodating the first accommodating cavity 111 of the second fixing seat 7, being located at 111 side of the first accommodating cavity
Third for accommodating the second accommodating cavity 112 of the first fixing seat 2 and valve body 4 and positioned at 111 other side of the first accommodating cavity
Accommodating cavity 113.Third accommodating cavity 113 is connected with opening 12, and the second accommodating cavity 112 is connected with conveying chamber 9.
First fixing seat 2 is located at the outside of valve body 4 and is set in the second accommodating cavity 112.Second fixing seat 7 is located at valve seat
The inside of body 4.Valve body 4 and shell 1 are face contact, and shell 1 is used to be oriented to so that valve body 4 is along shell 1 valve body 4
Axial a is mobile.
Tap is set on valve body 4.In the present embodiment, return port is set in shell 1.In other embodiments
In, return port can also be set on valve body 4.
Two-way valve 100 further includes that between the first fixing seat 2 and valve body 4 and can apply inward direction to valve body 4
First elastic device 3 of power between the second fixing seat 7 and valve body 4 and can apply the of outward direction power to valve body 4
Two elastic devices 6 and between the second elastic device 6 and valve body 4 and it can block and open the valve ball 5 of tap.Non-
When working condition, valve ball 5 blocks tap, and valve body 4 and the second fixing seat 7 contact and block return port.
The screw thread 132 in the second accommodating cavity 112, multiple in the second accommodating cavity 112 is additionally provided on shell 13
Extension 131 and the circulation groove 133 between extension 131.Valve body 4 and extension 131 are face contact.Circulation groove
133 are used for return port of the invention.
With further reference to shown in Fig. 8 a and Fig. 8 b, valve body 4 includes cylindrical the first noumenon portion 41, from the first noumenon
The cylindrical and diameter that portion 41 vertically extends is less than first extension 42, cylindrical while accommodating in the first noumenon portion 41
Valve ball 5 and the first hole 414 that can be play the guiding role to valve ball 5 and the second cylindrical hole 421.First hole 414 and second
Hole 421, which is connected, forms tap, and valve body 4 is additionally provided with from the first groove 413 that recess is formed outward of hole 414, the second hole 421
End face close to the first hole 414 is equipped with the first tapered surface 422, and valve ball 5 can be contacted with the first tapered surface 422 to block tap.
The outer end face in the first hole 414 is the second tapered surface 411.Second fixing seat 7 is contacted with the second tapered surface 411 to block return port.
In a preferred embodiment, the second fixing seat 7 is contacted with the contact portion B of the second tapered surface 411 for line, is in round shape.
With further reference to shown in Fig. 9 a and Fig. 9 b, the first fixing seat 2 includes centre bore 23, protruding portion 24, is located at protruding portion
Clearance groove 22 on 24 with the support division 21 for supporting valve body 4 and between protruding portion 24 to be flowed through for fuel oil.
First extension 42 is face contact for playing the guiding role to valve body 4 with protruding portion 24.
It is provided from what the fuel oil that tap flows out flowed through with further reference to shown in Figure 10 a and Figure 10 b, the second fixing seat 7 is equipped with
First recirculation hole 711 and the second recirculation hole 722.The end face of second recirculation hole 722 is equipped with third tapered surface 721.
Second fixing seat 7 further includes base portion 71 and second extension in the first hole 414 is extended vertically and stretched to from base portion 71
Portion 72,722 part of the second recirculation hole are located on the second extension 72.Between base portion 71 and extension 72 be equipped with groove 73, second
Elastic device 6 is at least partially disposed in groove 73.
In a preferred embodiment, the first elastic device 3 includes two butterfly springs being set together, and is plate；
Second fixed device 6 is cylindrical spring, is helical form.
When work, under the action of plunger 8, the pressure of the fuel oil in conveying chamber 9 becomes larger.Fuel oil in conveying chamber 9
Pressure greatly to a certain extent when, valve ball 5 is pushed open by fuel oil, fuel oil through third accommodating cavity 113, and then from outlet 12 flow out.When defeated
Send pressure reduction in room 6 to a certain extent when, tap 422 is closed by 52 return of valve ball.Pressure at outlet 12 is higher than
When predetermined pressure, valve ball 5, which is pushed back, to be supported onto the first tapered surface 422, and the second elastic device 6 resets, 3 quilt of the first elastic device
Compression, valve body 4 is pushed to be moved along axial a, so that the second fixing seat 7 is separated with the second tapered surface 411, to open reflux
Hole, so that the fuel oil in outlet 12 just flows back into conveying chamber 9 through the first recirculation hole 711, circulation groove 133, clearance groove 22, thus
Play the effect of limitation pressure.In present embodiment, outlet 12 is identical as the pressure of third accommodating cavity 113.The present invention is by setting
Setting two-way valve can satisfy the pressure release requirement of high-pressure pump.
Those skilled in the art can be obvious, the above exemplary embodiments of the invention can be carry out various modifications and modification and
Without departing from the spirit and scope of the present invention.Accordingly, it is intended to which present invention covering is made to fall in the appended claims and its equivalence techniques
Modifications of the present invention and modification in aspects.
Claims (11)
1. a kind of two-way valve for high-pressure pump, the two-way valve is connected with the conveying chamber (9) of high-pressure pump, the two-way valve packet
Shell (1), the valve body (4) being set in shell (1) are included, valve body (4) side is located at and is solid fixed to first on shell (1)
Reservation (2) and the second fixing seat (7) for being located at the other side of valve body (4) and being fixed on shell (1), two-way valve is additionally provided with
Outlet (12) and the connecting cavity (11) for being connected to outlet (12) with conveying chamber (9), the two-way valve includes tap and reflux
Hole, which is characterized in that valve body (4) can be along the axial movement of two-way valve, when valve body (4) is located at first position, return port
Closure, tap is openable and is closed；When valve body (4) is located at the second position, return port is opened, tap closure.
2. two-way valve as described in claim 1, which is characterized in that first fixing seat (2) is located at the outer of valve body (4)
Side, the second fixing seat (7) are located at the inside of valve body (4), and the valve body (4) and shell (1) are face contact, the shell
(1) for valve body (4) be oriented to so that valve body (4) along shell (1) axial movement.
3. two-way valve as described in claim 1, which is characterized in that the tap is set on valve body (4), the return port
On shell (1) or valve body (4).
4. two-way valve as described in claim 1, which is characterized in that further include positioned at the first fixing seat (2) and valve body (4) it
Between and can to valve body (4) apply inward direction power the first elastic device (3), be located at the second fixing seat (7) and valve body (4)
Between and can to valve body (4) apply outward direction power the second elastic device (6) and be set to the second elastic device (6) and valve
Between pedestal (4) and the valve ball (5) of tap can be blocked and open, in an inactive state, valve ball (5) blocks tap, valve
Pedestal (4) and the second fixing seat (7) contact and block return port.
5. such as the described in any item two-way valves of Claims 1-4, which is characterized in that the valve body (4) includes cylindrical
The first noumenon portion (41) is less than the first noumenon portion (41) from the cylindrical and diameter that the first noumenon portion (41) vertically extend
First extension (42), it is cylindrical at the same accommodate valve ball (5) and can to the first hole (414) that valve ball (5) play the guiding role with
And cylindrical the second hole (421), the first hole (414) are connected with the second hole (421) forms tap, and valve body (4) is also
Equipped with from the first hole (414) groove (413) that recess is formed outward, the second hole (421) are equipped with close to the end face of the first hole (414)
First tapered surface (422), the valve ball (5) can contact with the first tapered surface (422) to block tap.
6. two-way valve as claimed in claim 5, which is characterized in that first fixing seat (2) includes centre bore (23), protrudes
Portion (24) is located on protruding portion (24) for supporting the support division (21) of valve body (4) and between protruding portion (24)
With the clearance groove (22) flowed through for fuel oil, first extension (42) and protruding portion (24) are face contact for valve seat
Body (4) play the guiding role.
7. two-way valve as claimed in claim 5, which is characterized in that second fixing seat (7), which is equipped with, is provided from tap outflow
The first recirculation hole (711) for flowing through of fuel oil and the second recirculation hole (722) of the fuel flow returns at (12) for export, described
The end face of two recirculation holes (722) is equipped with third tapered surface (721), and the valve ball (5) can be in contact with third tapered surface (721).
8. two-way valve as claimed in claim 7, which is characterized in that second fixing seat (7) further include base portion (71) and
Second extension (72) in the first hole (414), the second recirculation hole (722) part position are extended vertically and stretched to from base portion (71)
In on the second extension (72).
9. two-way valve as described in claim 1, which is characterized in that first elastic device (3) includes two and is arranged one
The butterfly spring risen, described second fixed device (6) are cylindrical spring.
10. two-way valve as described in claim 1, which is characterized in that end of the valve block (4) close to the second fixing seat (7)
Face is equipped with the second tapered surface (411), and second fixing seat (7) contacts with the second tapered surface (411) to block return port.
11. a kind of high-pressure pump, which is characterized in that it includes conveying chamber (9), plunger (8), inlet valve (10) and such as claim
1 to 10 described in any item two-way valves (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710660256.9A CN109386635B (en) | 2017-08-04 | 2017-08-04 | Two-way valve for a high-pressure pump and high-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710660256.9A CN109386635B (en) | 2017-08-04 | 2017-08-04 | Two-way valve for a high-pressure pump and high-pressure pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109386635A true CN109386635A (en) | 2019-02-26 |
| CN109386635B CN109386635B (en) | 2019-12-06 |
Family
ID=65412317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710660256.9A Active CN109386635B (en) | 2017-08-04 | 2017-08-04 | Two-way valve for a high-pressure pump and high-pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109386635B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102325987A (en) * | 2009-02-20 | 2012-01-18 | 日立汽车系统株式会社 | High-pressure fuel feed pump, and discharge valve unit used therein |
| US8132558B2 (en) * | 2009-12-01 | 2012-03-13 | Stanadyne Corporation | Common rail fuel pump with combined discharge and overpressure relief valves |
| CN105190017A (en) * | 2013-03-15 | 2015-12-23 | 罗伯特·博世有限公司 | High pressure fuel pump comprising an outlet valve arranged between a conveyor chamber and an outlet |
| EP3002446A1 (en) * | 2011-03-08 | 2016-04-06 | Hitachi Automotive Systems, Ltd. | High-pressure fuel supply pump |
| CN105637212A (en) * | 2013-08-02 | 2016-06-01 | 罗伯特·博世有限公司 | High-pressure fuel pump having an outlet valve |
-
2017
- 2017-08-04 CN CN201710660256.9A patent/CN109386635B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102325987A (en) * | 2009-02-20 | 2012-01-18 | 日立汽车系统株式会社 | High-pressure fuel feed pump, and discharge valve unit used therein |
| US8132558B2 (en) * | 2009-12-01 | 2012-03-13 | Stanadyne Corporation | Common rail fuel pump with combined discharge and overpressure relief valves |
| CN102639862A (en) * | 2009-12-01 | 2012-08-15 | 斯塔纳迪恩公司 | Common rail fuel pump with combined discharge and overpressure relief valves |
| EP3002446A1 (en) * | 2011-03-08 | 2016-04-06 | Hitachi Automotive Systems, Ltd. | High-pressure fuel supply pump |
| CN105190017A (en) * | 2013-03-15 | 2015-12-23 | 罗伯特·博世有限公司 | High pressure fuel pump comprising an outlet valve arranged between a conveyor chamber and an outlet |
| CN105637212A (en) * | 2013-08-02 | 2016-06-01 | 罗伯特·博世有限公司 | High-pressure fuel pump having an outlet valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109386635B (en) | 2019-12-06 |
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Effective date of registration: 20191231 Address after: 130033 No. 1981, Wuhan Road, Changchun Economic Development Zone, Jilin, China Patentee after: Shibeite automotive electronics (Changchun) Co., Ltd. Address before: 130033 No. 1981, Wuhan road, economic development zone, Changchun City, Jilin Province Patentee before: Continental Automotive Electronics (Changchun) Co., Ltd. |
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Address after: 130033 No. 1981, Wuhan Road, Changchun Economic Development Zone, Jilin, China Patentee after: WeiPai automotive electronics (Changchun) Co., Ltd Address before: 130033 No. 1981, Wuhan Road, Changchun Economic Development Zone, Jilin, China Patentee before: Shibeite automotive electronics (Changchun) Co., Ltd. |