CN201706023U - Diaphragm straight-through pressure regulating valve - Google Patents
Diaphragm straight-through pressure regulating valve Download PDFInfo
- Publication number
- CN201706023U CN201706023U CN201020173432XU CN201020173432U CN201706023U CN 201706023 U CN201706023 U CN 201706023U CN 201020173432X U CN201020173432X U CN 201020173432XU CN 201020173432 U CN201020173432 U CN 201020173432U CN 201706023 U CN201706023 U CN 201706023U
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- China
- Prior art keywords
- valve ball
- valve
- lower chamber
- oil outlet
- spring
- 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 - Lifetime
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Abstract
The utility model discloses a diaphragm straight-through pressure regulating valve, which comprises a pressure regulating cavity and a lower cavity combined into a valve chamber. A diaphragm is arranged between the pressure regulating cavity and the lower cavity which are communicated with each other through an oil outlet pipe, a large spring is disposed inside the pressure regulating cavity, the top of the large spring is fixedly connected with the pressure regulating cavity, the bottom of the large spring is connected with a spring seat, the spring seat is fixedly connected with the oil outlet pipe, a valve ball is disposed inside the lower cavity and arranged inside a valve ball seat, a small spring is arranged between the valve ball and the valve ball seat, the valve ball seat is fixedly connected with the lower cavity, and the top of the valve ball is matched with the bottom face of the oil outlet pipe. The diaphragm straight-through pressure regulating valve can be used in an oil non-return system, can maintain pressure without fuel flowing, has smaller volume, can omit an oil pump stand space, and is simple in structure and higher in cost performance.
Description
Technical field
The utility model relates to a kind of automobile electronics, is specifically related to the straight-through pressure regulator valve of a kind of diaphragm type.
Background technique
Motor Vehicle oil pump support is provided with pressure regulator valve, is used to regulate the pressure of engine fuel system, and keeps system pressure stable, thereby automotive emission is not exceeded standard.
At present, pressure regulator valve more and more is used in the no oil return system, but existing pressure regulator valve volume is bigger than normal, therefore how to make the pressure regulator valve volume littler, and cost performance is higher, becomes current major technique bottleneck.
The model utility content
Technical problem to be solved in the utility model provides the straight-through pressure regulator valve of a kind of diaphragm type, and it can keep oil pressure stable when fuel flow fluctuates, and plays the pressurize effect when no fuel flow.
For solving the problems of the technologies described above, the technical solution of the straight-through pressure regulator valve of the utility model diaphragm type is:
Comprise pressure regulation cavity, lower chamber, pressure regulation cavity and lower chamber are combined to form valve pocket; Be provided with diaphragm between pressure regulation cavity and the lower chamber, be communicated with by oil outlet tube between pressure regulation cavity and the lower chamber; In the pressure regulation cavity big spring being set, fixedlys connected with the pressure regulation cavity in the big spring top, and the bottom of big spring connects spring seat; Spring seat is fixedlyed connected with oil outlet tube; Valve ball is set in the lower chamber, and valve ball is arranged in the valve ball seat, is provided with little spring between valve ball and the valve ball seat; The valve ball seat is fixedlyed connected with lower chamber; The valve ball top cooperates with the bottom surface of oil outlet tube.
Described oil outlet tube bottom surface is the conical surface, contacts for the conical surface between the bottom surface of valve ball and oil outlet tube.
Described lower chamber bottom is provided with filter screen.Described filter screen is fixedlyed connected with the valve ball seat by back-off structure.
Described lower chamber is arranged with bracing ring, O shape circle.
The technique effect that the utility model can reach is:
The utility model can be used for not having in the oil return system, keeps oil pressure stable when fuel flow fluctuates, and plays the pressurize effect when no fuel flow.
Volume of the present utility model is littler, can save the oil pump bracket space.
Of the present utility model simple in structure, cost performance is higher.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the structural representation of the straight-through pressure regulator valve of the utility model diaphragm type.
Description of reference numerals among the figure:
1 is the pressure regulation cavity, and 2 is big spring,
3 is spring seat, and 4 is diaphragm,
5 is lower chamber, and 6 is oil outlet tube,
7 is bracing ring, and 8 are O shape circle,
9 is filter screen, and 10 is little spring,
11 is the valve ball seat, and 12 is valve ball.
Embodiment
As shown in Figure 1, the utility model diaphragm type leads directly to pressure regulator valve, comprises pressure regulation cavity 1, lower chamber 5, and pressure regulation cavity 1 is combined to form valve pocket with lower chamber 5; Be provided with diaphragm 4 between pressure regulation cavity 1 and the lower chamber 5, be communicated with by oil outlet tube 6 between pressure regulation cavity 1 and the lower chamber 5;
Big spring 2 is set in the pressure regulation cavity 1, and big spring 2 roof anchorage are connected in the top of pressure regulation cavity 1, and the bottom of big spring 2 connects spring seat 3; Spring seat 3 is fixedlyed connected with oil outlet tube 6;
Valve ball 12 is set in the lower chamber 5, and valve ball 12 is arranged in the valve ball seat 11, is provided with little spring 10 between valve ball 12 and the valve ball seat 11; Valve ball seat 11 and lower chamber 5 achieve a fixed connection by interference fit; Valve ball 12 tops cooperate with the bottom surface of oil outlet tube 6, and oil outlet tube 6 bottom surfaces are the conical surface, and valve ball 12 is that the conical surface contacts with the bottom surface of oil outlet tube 6, form conical surface seal;
Lower chamber 5 outer bracing ring 7, the O shape circles 8 of being arranged with, lower chamber 5 bottoms are provided with filter screen 9; The filter screen 9 of lower chamber 5 bottoms is fixedlyed connected with valve ball seat 11 by back-off structure, and filter screen 9 can play the effect of isolating impurity in the fuel oil.
By regulating the elastic force of big spring 2, can realize adjusting to the cracking pressure of pressure regulator valve.
Working principle of the present utility model is:
Fuel oil enters in the lower chamber 5 by filter screen 9, and when fuel pressure surpasses the cracking pressure of regulation (fuel pressure is greater than the elastic force of big spring 2), diaphragm 4 lifts, and drives oil outlet tube 6 and rises, and the bottom surface of oil outlet tube 6 is separated with valve ball 12, realizes the unlatching of valve; This moment, fuel oil can flow back into fuel tank by oil outlet tube 6, thereby guaranteed the relatively stable of fuel pressure;
When fuel pressure was less than cracking pressure in the lower chamber 5, under the elastic force effect of big spring 2, diaphragm 4 descended, and drives oil outlet tube 6 and moves down, and the bottom surface of oil outlet tube 6 and valve ball 12 are resumed contacts, and realizes closing of valve; This moment, fuel oil was stored in the lower chamber 5, thereby played the pressurize effect.
Claims (5)
1. a diaphragm type leads directly to pressure regulator valve, it is characterized in that: comprise pressure regulation cavity (1), lower chamber (5), pressure regulation cavity (1) is combined to form valve pocket with lower chamber (5); Be provided with diaphragm (4) between pressure regulation cavity (1) and the lower chamber (5), be communicated with by oil outlet tube (6) between pressure regulation cavity (1) and the lower chamber (5);
Big spring (2) is set in the pressure regulation cavity (1), fixedlys connected with pressure regulation cavity (1) in big spring (2) top, and the bottom of big spring (2) connects spring seat (3); Spring seat (3) is fixedlyed connected with oil outlet tube (6);
Valve ball (12) is set in the lower chamber (5), and valve ball (12) is arranged in the valve ball seat (11), is provided with little spring (10) between valve ball (12) and the valve ball seat (11); Valve ball seat (11) is fixedlyed connected with lower chamber (5); Valve ball (12) top cooperates with the bottom surface of oil outlet tube (6).
2. diaphragm type according to claim 1 leads directly to pressure regulator valve, it is characterized in that: described oil outlet tube (6) bottom surface is the conical surface, contacts for the conical surface between the bottom surface of valve ball (12) and oil outlet tube (6).
3. diaphragm type according to claim 1 leads directly to pressure regulator valve, it is characterized in that: described lower chamber (5) bottom is provided with filter screen (9).
4. diaphragm type according to claim 3 leads directly to pressure regulator valve, it is characterized in that: described filter screen (9) is fixedlyed connected with valve ball seat (11) by back-off structure.
5. diaphragm type according to claim 1 leads directly to pressure regulator valve, it is characterized in that: described lower chamber (5) is arranged with bracing ring (7), O shape circle (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020173432XU CN201706023U (en) | 2010-04-27 | 2010-04-27 | Diaphragm straight-through pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020173432XU CN201706023U (en) | 2010-04-27 | 2010-04-27 | Diaphragm straight-through pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201706023U true CN201706023U (en) | 2011-01-12 |
Family
ID=43443179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020173432XU Expired - Lifetime CN201706023U (en) | 2010-04-27 | 2010-04-27 | Diaphragm straight-through pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201706023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102648706A (en) * | 2012-05-10 | 2012-08-29 | 市下控股有限公司 | Pressure adjusting and stabilizing device for sprayer spray gun |
-
2010
- 2010-04-27 CN CN201020173432XU patent/CN201706023U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102648706A (en) * | 2012-05-10 | 2012-08-29 | 市下控股有限公司 | Pressure adjusting and stabilizing device for sprayer spray gun |
| CN102648706B (en) * | 2012-05-10 | 2013-11-06 | 市下控股有限公司 | Pressure adjusting and stabilizing device for sprayer spray gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110112 |
|
| CX01 | Expiry of patent term |