CN202220689U - Novel constant pressure valve - Google Patents
Novel constant pressure valve Download PDFInfo
- Publication number
- CN202220689U CN202220689U CN201120363924XU CN201120363924U CN202220689U CN 202220689 U CN202220689 U CN 202220689U CN 201120363924X U CN201120363924X U CN 201120363924XU CN 201120363924 U CN201120363924 U CN 201120363924U CN 202220689 U CN202220689 U CN 202220689U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- spool
- steel ball
- valve
- constant pressure
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a novel constant pressure valve, which comprises a shell and a valve spool. A valve seat and a diaphragm are arranged in the shell, a steel ball is disposed on one side of the valve seat and corresponds to the valve spool, a valve seat spring is disposed on the other side, which is opposite to the valve spool, of the valve seat, and the steel ball is spherically disposed. The technical scheme is adopted, when a synchronizer is used, precision requirements on processing and manufacturing of the valve seat and the valve spool are lowered, two contact surfaces of the valve seat and the valve spool do not need to be extremely smooth, and accordingly production cost of an enterprise is lowered. In addition, the position of the valve spool can be automatically centered, adjusted and closed and pressure consistency of various positions of a sealed surface of the valve spool can be realized without high requirements on concentricity, perpendicularity and position of a hemispherical steel ball, and accordingly, stability and reliability of fuel supply pressure are guaranteed.
Description
Technical field
The utility model relates to the auto parts and components field, is specifically related to a kind of novel constant pressure valve.
Background technique
Hyundai Motor has got into fuel injection and has nebulized burning thoroughly, and hot merit conversion discharging is reduced to the minimum EFI car epoch.Automobile by the control of gravity flow float type fuel pressure, flow and air mixing carburetion formula combustion manner will become history and historical relics.For guarantee Hyundai Motor under steam, brake deceleration or stagnation of movement the fuel pressure of various work operating modes such as restart, the vehicle fuel supply system must have the setting of constant pressure valve.Traditional constant pressure valve generally includes housing and spool, is provided with valve seat and diaphragm in the housing; Corresponding spool one side of valve seat is provided with steel ball; The relative spool opposite side of valve seat is provided with seating spring, and when car deceleration went, fuel pressure can constantly raise; In case fuel pressure greater than this car should the time when working the fuel pressure of operating mode defined; Pressure oil is when fuel circuit is opened fuel pressure and dropped to the pressure of defined thereupon with regard to promoting steel ball, and steel ball is closed under the effect of seating spring, has also guaranteed the fuel pressure when automobile quickens operating mode at full capacity.Yet traditional constant pressure valve, its steel ball are hemispherical, and the high and operation of its required precision to valve seat and spool manufacturing is many, and valve seat contact the high smoothness of working surface needs with spool two and complicated, have therefore increased the cost of production of enterprise; And hemispherical steel ball need very high with one heart with perpendicularity and position degree, can carry out just that centering is regulated the position degree of closing spool and to valve core sealed cover pressure consistency everywhere, with the stable reliability that reaches that guarantees that fuel delivery is pressed.
Summary of the invention
To the deficiency that existing technology exists, the purpose of the utility model is to provide a kind of processing cost lower, the stable and higher novel constant pressure valve of reliability.
For realizing above-mentioned purpose; The utility model provides following technological scheme: a kind of novel constant pressure valve; Comprise housing and spool, be provided with valve seat and diaphragm in the housing, corresponding spool one side of valve seat is provided with steel ball; The relative spool opposite side of valve seat is provided with seating spring, and said steel ball is spherical setting.
Through adopting technique scheme, reduced the required precision of valve seat and spool manufacturing, valve seat contacts working surface and does not also need high smoothness with spool two, therefore reduced the cost of production of enterprise; And do not need hemispherical steel ball such high with one heart with the requirement of perpendicularity and position degree, just can be able to carry out that automatic capturing is regulated the position degree of closing spool and to valve core sealed cover pressure consistency everywhere, thereby stablizing of guaranteeing that fuel delivery presses reaches reliability.
The utility model further is set to: be provided with die cavity in the said valve seat, said die cavity is arranged on the relative spool opposite side of steel ball, is provided with bearing pin and pressure spring in the die cavity, and said bearing pin is folded between pressure spring and the steel ball.
The utility model further is set to: said housing is interlocked by loam cake and lower cover and constitutes; Said spool is connected with loam cake; Said loam cake upper-end surface is provided with filter screen, and the loam cake sidepiece is provided with seal ring and sealed loop-pad, and said seal ring is arranged between filter screen and the sealed loop-pad.
The utility model further is set to: corresponding spool one side of said valve seat is provided with trim ring, and said diaphragm folder peripheral part is folded in loam cake and the lower cover place that is interlocked, and the interior perimembranous of diaphragm is folded between trim ring and the valve seat.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the utility model constant pressure valve example structure figure.
Embodiment
Referring to accompanying drawing 1, the disclosed novel constant pressure valve of the utility model comprises housing 1 and spool 2; Be provided with valve seat 3 and diaphragm 4 in the housing 1; Valve seat 3 corresponding spool 2 one sides are provided with steel ball 5, and valve seat 3 relative spool 2 opposite sides are provided with seating spring 6, and said steel ball 5 is spherical setting.So be provided with, reduced the required precision of valve seat 3 with spool 2 manufacturing, valve seat 3 contacts working surface with 2 liang of spools and does not also need high smoothness, has therefore reduced the cost of production of enterprise; And do not need the requirement of high concentric and perpendicularity and position degree of hemispherical steel ball that kind; With regard to can be able to carry out automatic capturing regulate the position degree of closing spool 2 and to spool 2 sealing surfaces pressure consistency everywhere, thereby guarantee the stable and reliability that fuel delivery is pressed.
Present embodiment further is set to: be provided with die cavity in the said valve seat 3, said die cavity is arranged on steel ball 5 relative spool 2 opposite sides, is provided with bearing pin 7 and pressure spring 8 in the die cavity, and said bearing pin 7 is folded between pressure spring 8 and the steel ball 5.Said housing 1 is interlocked by loam cake 101 and lower cover 102 and constitutes; Said spool 2 is connected with loam cake 101; Said loam cake 101 upper-end surfaces are provided with filter screen 9, and loam cake 101 sidepieces are provided with seal ring 10 and sealed loop-pad 11, and said seal ring 10 is arranged between filter screen 9 and the sealed loop-pad 11.Said valve seat 3 corresponding spool 2 one sides are provided with trim ring 12, and said diaphragm 4 folder peripheral parts are folded in loam cake 101 and lower cover 102 place that is interlocked, and diaphragm 4 interior perimembranous are folded between trim ring 12 and the valve seat 3.
Claims (4)
1. a novel constant pressure valve comprises housing and spool, is provided with valve seat and diaphragm in the housing, and corresponding spool one side of valve seat is provided with steel ball, and the relative spool opposite side of valve seat is provided with seating spring, and it is characterized in that: said steel ball is spherical setting.
2. novel constant pressure valve according to claim 1; It is characterized in that: be provided with die cavity in the said valve seat; Said die cavity is arranged on the relative spool opposite side of steel ball, is provided with bearing pin and pressure spring in the die cavity, and said bearing pin is folded between pressure spring and the steel ball.
3. novel constant pressure valve according to claim 1 and 2; It is characterized in that: said housing is interlocked by loam cake and lower cover and constitutes; Said spool is connected with loam cake; Said loam cake upper-end surface is provided with filter screen, and the loam cake sidepiece is provided with seal ring and sealed loop-pad, and said seal ring is arranged between filter screen and the sealed loop-pad.
4. novel constant pressure valve according to claim 3 is characterized in that: corresponding spool one side of said valve seat is provided with trim ring, and said diaphragm folder peripheral part is folded in loam cake and the lower cover place that is interlocked, and the interior perimembranous of diaphragm is folded between trim ring and the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120363924XU CN202220689U (en) | 2011-09-26 | 2011-09-26 | Novel constant pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120363924XU CN202220689U (en) | 2011-09-26 | 2011-09-26 | Novel constant pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202220689U true CN202220689U (en) | 2012-05-16 |
Family
ID=46042716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120363924XU Expired - Fee Related CN202220689U (en) | 2011-09-26 | 2011-09-26 | Novel constant pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202220689U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653361A (en) * | 2013-11-19 | 2015-05-27 | 丹阳市米可汽车零部件厂 | Oil pressure regulator of automobile |
| CN108096660A (en) * | 2018-01-08 | 2018-06-01 | 美茵（北京）医疗器械研发有限公司 | A kind of flushing aspirator of pressure adjustable |
| CN110501256A (en) * | 2019-09-09 | 2019-11-26 | 中国矿业大学(北京) | A kind of gas level pressure test device for desorption and method |
-
2011
- 2011-09-26 CN CN201120363924XU patent/CN202220689U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653361A (en) * | 2013-11-19 | 2015-05-27 | 丹阳市米可汽车零部件厂 | Oil pressure regulator of automobile |
| CN108096660A (en) * | 2018-01-08 | 2018-06-01 | 美茵（北京）医疗器械研发有限公司 | A kind of flushing aspirator of pressure adjustable |
| CN110501256A (en) * | 2019-09-09 | 2019-11-26 | 中国矿业大学(北京) | A kind of gas level pressure test device for desorption and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120516 Termination date: 20140926 |
|
| EXPY | Termination of patent right or utility model |