CN102200193A - Plunger pump check valve - Google Patents
Plunger pump check valve Download PDFInfo
- Publication number
- CN102200193A CN102200193A CN 201010179430 CN201010179430A CN102200193A CN 102200193 A CN102200193 A CN 102200193A CN 201010179430 CN201010179430 CN 201010179430 CN 201010179430 A CN201010179430 A CN 201010179430A CN 102200193 A CN102200193 A CN 102200193A
- Authority
- CN
- China
- Prior art keywords
- oil
- spring
- plunger pump
- way valve
- valve body
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a plunger pump check valve which comprises a valve body, a steel ball, a spring and a spring seat body, wherein the valve body is provided with an oil inlet part, an oil outlet part and a valve seat arranged between the oil inlet part and the oil outlet part; the spring is arranged between the spring seat body and the steel ball, the center of the spring is also provided with an oil outlet hole, and the steel ball is pressed tightly on the valve seat under the effect of spring force; the valve body is also provided with an overflowing hole, and the diameter of the overflowing hole is greater than the oil outlet part and is adjacent to the oil outlet part; and the spring seat body is provided with at least two oil passing grooves which are communicated with the overflowing hole. Through arranging the overflowing hole at the adjacent part of an oil port part, the overflowing cross section area of an inner cavity of the valve body is increased, simultaneously the oil passing grooves are arranged on the outer periphery of the spring seat body, the flowing of pressure oil which flows from the oil port part is more smooth, the problem that the improper closing of the check valve caused by the plugging of the oil outlet hole under the over pressure effect of the steel ball is solved, and the reliability of the check valve is improved.
Description
Technical field
The present invention relates to a kind of one-way valve, this one-way valve mainly is used as the inlet valve or the outlet valve of motor vehicle braking system fluid pressure governor upper plug pump.
Background technique
Anti-blocking brake system of automobile (ABS) is popularized on modern vehicle gradually, and it also is the basis of other safety installations (as ESP driving dynamic stabilization system and EBD brake power distribution system).Conventional one-way valve is found in " hydraulic pressure and pneumatics " (Du Lailin chief editor, the BJ University Press, 2006.9, the 84th page), to form by parts such as housing, spool, springs, pressure oil flows into from filler opening, act on the spool, when overcoming the elastic force of spring, back down spool, flow out from oil outlet through annular valve port.When liquid flows when reverse, under spring force and oil liquid pressure effect, spool is pressed on the valve seat, and outlet side fluid can not pass through.
Referring to Fig. 2, in the prior art, oil outlet 12 is for being arranged on the axial center hole on the spring pedestal, and the inner of described spring pedestal 13 is provided with the spring seat portion 11 coaxial with described oil outlet 12, is boss and protrudes.Described steel ball 6 is on the valve seat 5 that is pressed on valve body 1 oil-feed oral area 2 the inners under the effect of spring 8, in the fuel-displaced oral area 3 of described valve body, be provided with four and go out oil-gap 7c, along described fuel-displaced oral area 3 circumference uniform distributions, and form four steel ball guiding ribs (not showing on the figure), as the guiding of described steel ball 6.When the pressure of oil-feed oral area 2 acts on the elastic force that overcomes described spring 8 on the steel ball 6, steel ball 6 is lifted from valve seat 5, move along described steel ball guiding rib, pressure oil flows through and flows out from described spring pedestal 13 axial center holes (oil outlet 12) from the described oil-gap 7c of going out.When the pressure oil pressure that flows into from oil-feed oral area 2 is excessive, steel ball 6 very easily is pressed towards the spring seat portion 11 that boss protrudes that is, cause the obstruction of described oil outlet 12, cause that the improper of one-way valve close, influenced the functional reliability of motor vehicle braking system, in addition, because the fuel-displaced fluency of oil outlet 12 is affected, make steel ball 6 vibrations and produce vibration noise, influenced the working life of one-way valve simultaneously.
Summary of the invention
The objective of the invention is to the structure of above-mentioned one-way valve is improved, it is fuel-displaced not smooth to solve former one-way valve oil outlet, and therefore susceptible to plugging problem simultaneously, also solves and produce noise by steel ball, influences the problem in one-way valve life-span.
Technical solution of the present invention is: a kind of plunger pump one-way valve, comprise valve body, steel ball, spring and spring pedestal, and described valve body is provided with an oil-feed oral area and a fuel-displaced oral area and is located at therebetween valve seat; Described spring is arranged between spring pedestal and the steel ball, and its center is provided with an oil outlet, and described steel ball is pressed on the described valve seat under described spring force effect; Also be provided with a flowing hole on described valve body, this flowing hole is away from described valve seat, and its diameter is greater than described fuel-displaced oral area and adjacent with it; On the external circumference of described spring seat, be provided with at least two and cross oil groove, be communicated with described flowing hole.By to have increased the overflow section of described body cavity long-pending with described fuel-displaced oral area adjacent a flowing hole being set, reduced the vibration tendency of steel ball, help reducing the one-way valve noise and increase the one-way valve durability, simultaneously, on the external circumference of described spring seat, oil groove was set, make the pressure oil that flows out from described fuel-displaced oral area flow out more smooth and easy, having solved the invar ball makes described oil outlet stop up under the excessive pressure effect, cause the improper problem of closing of one-way valve, improved the reliability of one-way valve.
As a preferred embodiment of the present invention, described flowing hole comprises flow passage and an adjacent with it overcurrent export department; Described overcurrent export department and the external circumference of described spring seat are adaptive, and its diameter is greater than the diameter of described flow passage, and its semidiameter is less than the described degree of depth of crossing oil groove.Be equipped with a transition chamfering between described overcurrent export department and the described flow passage and between described flow passage and the described oil outlet portion.By an overcurrent export department that is shoulder hole being set at described one-way valve flowing hole outlet end, the spring pedestal is connected on the described valve body by press-fit approach, and can guarantees the described UNICOM of crossing oil groove and described flowing hole, guarantee that one-way valve can not stop up.
As a kind of further preferred version of the present invention, the oil groove excessively on the described spring pedestal is four, and it is uniform along described spring seat excircle, is axial perforation, thereby makes the fuel-displaced even smoothness of pressure oil.
As a kind of further preferred version of the present invention, described spring pedestal and described flowing hole are adaptive, adopt to press-fit to be connected on the described valve body, are provided with a crimp on the exterior edge face of described valve body, its crimp oblique angle is 45 degree, is provided with out oil-gap between itself and the external end face of described spring seat.Press-fit approach by 45 reducings of spending can guarantee enough oil-gaps that goes out, and guarantees fuel-displaced smoothness.
As a preferred embodiment of the present invention, described spring seat interior edge face is provided with the spring seat portion of spill, and this spring seat portion diameter is greater than described center oil outlet but less than the described residing circumferential surface diameter in oil groove bottom of crossing.The improvement of this structure has increased the be communicated with fluency of oil outlet with flowing hole, has reduced protrusion, the easily probability of being stopped up by steel ball because of spring seat portion simultaneously.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is an one-way valve structures schematic representation of the prior art.
The numbering explanation
1 valve body
2 oil-feed oral areas
3 fuel-displaced oral areas
4 bodies
5 valve seats
6 steel balls
7 flowing holes
The 7a flow passage
7b overcurrent export department
7c goes out oil-gap
8 springs
9 cross oil groove
10 crimps
11 spring seat portions
12 oil outlets
13 spring pedestals
14 axial bores.
Embodiment
Referring to Fig. 1, a kind of plunger pump one-way valve, it is installed in the axial bore of body 4, comprises valve body 1, steel ball 6, spring 8 and spring pedestal 13.Be provided with a shoulder hole that axially connects in the middle of the described valve body 1, be provided with oil-feed oral area 2, valve seat 5, fuel-displaced oral area 3, flow passage 7a and the 7b of overcurrent export department successively; On described valve body 1 the above overcurrent export department 7b outer, be provided with a crimp 10, described spring pedestal 13 be fitted in the described overcurrent 7b of export department by this crimp 10.The inner center of described spring pedestal 13 is provided with the spring seat portion 11 of a depression, and is provided with concentric with it oil outlet 12, and described oil outlet 12 is axial perforation.Be provided with four and cross oil grooves 9 on the excircle of described spring pedestal 13, this is crossed oil groove 9 and is axial perforation and evenly distributes along described spring pedestal 13 excircles.Described spring 8 is arranged between spring pedestal 13 and the steel ball 6, and the one end is against in the described spring seat portion 11, and the other end is pressed on described steel ball 6 on the described valve seat 5, the break-make of pilot pressure oil.
By in described valve body 1, flowing hole 7 being set, it is long-pending to have increased liquid outflow flow section, when the oil pressure of oil-feed oral area 2 spring force greater than described spring 8, pressure oil makes described steel ball 6 overcome spring force and lifts from described valve seat 5, described pressure oil flows out through described fuel-displaced oral area 3 from described valve seat 5, and successively by described flow passage 7a, 7b of overcurrent export department or mistake oil groove 9, and shunt in the gap between crimp 10 and described spring pedestal 13 exterior edge faces, not can because of described oil outlet 12 when being subjected to described steel ball 6 and stopping up, cause that one-way valve is improper closes, also reduced simultaneously the vibration tendency of steel ball 6, thereby reduced the one-way valve noise, increased the serviceability of one-way valve steel ball.Improved the reliability of motor vehicle braking system on the whole.
Claims (8)
1. a plunger pump one-way valve comprises valve body, steel ball, spring and spring pedestal, and described valve body is provided with an oil-feed oral area and a fuel-displaced oral area and is located at therebetween valve seat; Described spring is arranged between spring pedestal and the steel ball, is provided with an oil outlet on described spring pedestal, and described steel ball is pressed on the described valve seat under described spring force effect; It is characterized in that: also be provided with a flowing hole on described valve body, this flowing hole is away from described valve seat, and its diameter is greater than described fuel-displaced oral area and adjacent with it; On described spring pedestal, be provided with at least two and cross oil groove, be communicated with described flowing hole.
2. a kind of plunger pump one-way valve according to claim 1 is characterized in that: described flowing hole comprises flow passage and an adjacent with it overcurrent export department; Described overcurrent export department and the external circumference of described spring seat are adaptive, and its diameter is greater than the diameter of described flow passage, and its semidiameter is less than the described degree of depth of crossing oil groove.
3. a kind of plunger pump one-way valve according to claim 1 and 2 is characterized in that: the oil groove excessively on the described spring pedestal is four, and it evenly distributes along the external circumference of described spring seat, is axial perforation.
4. a kind of plunger pump one-way valve according to claim 2 is characterized in that: be equipped with a transition chamfering between described overcurrent export department and the described flow passage and between described flow passage and the described fuel-displaced oral area.
5. a kind of plunger pump one-way valve according to claim 1 and 2, it is characterized in that: described spring pedestal and described flowing hole are adaptive, employing press-fits and is connected on the described valve body, on the exterior edge face of described valve body, be provided with a crimp, be provided with out oil-gap between this crimp and the external end face of described spring seat.
6. a kind of plunger pump one-way valve according to claim 1 and 2 is characterized in that: described spring pedestal interior edge face is provided with the spring seat portion of spill, and this spring seat portion diameter is greater than described oil outlet but less than the described residing circumferential surface diameter in oil groove bottom of crossing.
7. a kind of plunger pump one-way valve according to claim 5 is characterized in that: the crimp on the described valve body, its press-bending oblique angle are 45 degree.
8. a kind of plunger pump one-way valve according to claim 3 is characterized in that: described spring pedestal interior edge face is provided with the spring seat portion of spill, and this spring seat portion diameter is greater than described oil outlet but less than the described residing circumferential surface diameter in oil groove bottom of crossing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010179430 CN102200193B (en) | 2010-05-24 | 2010-05-24 | Plunger pump check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010179430 CN102200193B (en) | 2010-05-24 | 2010-05-24 | Plunger pump check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102200193A true CN102200193A (en) | 2011-09-28 |
| CN102200193B CN102200193B (en) | 2012-09-05 |
Family
ID=44661077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010179430 Active CN102200193B (en) | 2010-05-24 | 2010-05-24 | Plunger pump check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102200193B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225703A (en) * | 2012-01-31 | 2013-07-31 | 株式会社电装 | Check valve |
| CN108644105A (en) * | 2018-06-12 | 2018-10-12 | 台州巨力工具有限公司 | A kind of check valve and hydraulic tool for hydraulic tool |
| WO2019166134A1 (en) * | 2018-03-02 | 2019-09-06 | Robert Bosch Gmbh | High pressure fuel pump with pressure limiting valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3024998A1 (en) * | 1980-07-02 | 1982-01-28 | Robert Bosch Gmbh, 7000 Stuttgart | Non-return valve for motor vehicle electric fuel pump - has valve element acted on by bias spring simultaneously controlling opening movement |
| WO1987006318A1 (en) * | 1986-04-12 | 1987-10-22 | Stein Guenter | Check valve |
| CN2596139Y (en) * | 2002-12-30 | 2003-12-31 | 北京振冲工程股份有限公司 | Reversal valve |
| CN201053524Y (en) * | 2007-06-22 | 2008-04-30 | 广东恒基金属制品实业有限公司 | One-way valve for heat pump refrigeration system |
| CN201671809U (en) * | 2010-05-24 | 2010-12-15 | 浙江万向精工有限公司 | Check valve of plunger pump |
-
2010
- 2010-05-24 CN CN 201010179430 patent/CN102200193B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3024998A1 (en) * | 1980-07-02 | 1982-01-28 | Robert Bosch Gmbh, 7000 Stuttgart | Non-return valve for motor vehicle electric fuel pump - has valve element acted on by bias spring simultaneously controlling opening movement |
| WO1987006318A1 (en) * | 1986-04-12 | 1987-10-22 | Stein Guenter | Check valve |
| CN2596139Y (en) * | 2002-12-30 | 2003-12-31 | 北京振冲工程股份有限公司 | Reversal valve |
| CN201053524Y (en) * | 2007-06-22 | 2008-04-30 | 广东恒基金属制品实业有限公司 | One-way valve for heat pump refrigeration system |
| CN201671809U (en) * | 2010-05-24 | 2010-12-15 | 浙江万向精工有限公司 | Check valve of plunger pump |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225703A (en) * | 2012-01-31 | 2013-07-31 | 株式会社电装 | Check valve |
| CN103225703B (en) * | 2012-01-31 | 2015-09-30 | 株式会社电装 | One-way valve |
| WO2019166134A1 (en) * | 2018-03-02 | 2019-09-06 | Robert Bosch Gmbh | High pressure fuel pump with pressure limiting valve |
| CN108644105A (en) * | 2018-06-12 | 2018-10-12 | 台州巨力工具有限公司 | A kind of check valve and hydraulic tool for hydraulic tool |
| CN108644105B (en) * | 2018-06-12 | 2023-06-30 | 台州巨力工具股份有限公司 | One-way valve for hydraulic tool and hydraulic tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102200193B (en) | 2012-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201671809U (en) | Check valve of plunger pump | |
| US8733848B2 (en) | Vehicle brake device and its reservoir | |
| CN102138002B (en) | Piston pump | |
| CN201851753U (en) | Improved ESP (Electronic Stability Program) delivery valve | |
| CN102200193B (en) | Plunger pump check valve | |
| US9346447B2 (en) | Solenoid valve for brake system | |
| CN108137030B (en) | Valve device for throttling a pressure medium flow and damping device for damping pressure pulsations | |
| US8281802B2 (en) | Valve for anti-lock brake system | |
| CN104973037A (en) | Solenoid Valve For Brake System | |
| KR20100003785A (en) | Solenoid valve for brake system | |
| US20160176387A1 (en) | Pressure Change Damper for a Hydraulic Vehicle Brake System with Brake Force Control, and Hydraulic Vehicle Brake System with Brake Force Control with such a Pressure Change Damper | |
| CN105620456B (en) | Vacuum solenoid valve | |
| CN105673741A (en) | Brake pump of loader | |
| JP6329704B2 (en) | Valve structure group for pressure fluctuation attenuator for hydraulic vehicle brake device of braking force control type, hydraulic block for such vehicle brake device, and vehicle brake device equipped with such hydraulic block | |
| US9061667B2 (en) | Hydraulic piston pump | |
| JP2005335674A (en) | Master cylinder | |
| JP7203703B2 (en) | Cylinder device manufacturing method and cylinder device | |
| CN1734142B (en) | Valve installation | |
| KR100819914B1 (en) | A electronic control master cylinder | |
| US10730493B2 (en) | Hydraulic block and manufacturing method for a hydraulic block including at least one check valve | |
| CN2839690Y (en) | Superimposed relief valve | |
| CN100482991C (en) | Valve device | |
| CN102072216B (en) | Energy-saving reducing valve for hydraulic system | |
| US20050006190A1 (en) | Brake control device with a check valve for a motor vehicle | |
| CN210118494U (en) | Check valve with damping function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |