CN202686349U - Series-type dual-chamber proportional valve - Google Patents
Series-type dual-chamber proportional valve Download PDFInfo
- Publication number
- CN202686349U CN202686349U CN 201220323817 CN201220323817U CN202686349U CN 202686349 U CN202686349 U CN 202686349U CN 201220323817 CN201220323817 CN 201220323817 CN 201220323817 U CN201220323817 U CN 201220323817U CN 202686349 U CN202686349 U CN 202686349U
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- valve
- chamber
- piston
- valve body
- series
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- 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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- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
The utility model discloses a series-type dual-chamber proportional valve. The series-type dual-chamber proportional valve comprises a valve body, wherein a valve cavity is arranged in the valve body; a balance piston is arranged in the valve cavity; pistons are arranged at both ends of the balance piston; a leather cup is sleeved on the balance piston; a guide sleeve is arranged at the front end of the piston; an outer spring cover is fixedly arranged at one end of the valve body; a spring is arranged in the outer spring cover; an oil outlet joint is fixedly arranged at the other end of the valve cavity; and a dustproof plug is arranged on the end part of the oil outlet joint. According to the series-type dual-chamber proportional valve, the two chambers are separated by the balance piston, and the brake hydraulic pressure of the two chambers is balanced by the balance piston, so that the pressure difference is reduced, and the brake is stable.
Description
Technical field
The utility model relates to the apportioning valve field, specifically belongs to tandem two-chamber apportioning valve.
Background technology
Apportioning valve is to carry out in proportion continuous step control, change the information that gathers back according to actual conditions target is carried out auto-compensation control, it all is servo-actuated that its valve opening direction, opening amount or spring are set power, realizes a series of continuously actions of controlled servo-actuated variation.Can say that its final function of an apportioning valve is equivalent to the set of a series of congeniality common valve that form according to certain rules, just the apportioning valve system consists of simply by contrast, cost is low, take up an area little, easy realization control.Common two-chamber apportioning valve is generally parallel structure, and two chambeies are independent, because Mismachining tolerance, two chamber accessory sizes are inconsistent, can cause two chamber pressure reduction larger, cause two rear wheel brake power inconsistent, cause the defective of partially stopping.
The utility model content
The purpose of this utility model provides a kind of tandem two-chamber apportioning valve, and tandem two-chamber apportioning valve is separated two chambeies with dummy piston, and by dummy piston balance two chamber brake fluid pressures, pressure reduction is very little, brakes more stable simultaneously.
The technical solution of the utility model is as follows:
Tandem two-chamber apportioning valve, include valve body, have valve pocket in the valve body, in the described valve pocket dummy piston is installed, the two ends of dummy piston are separately installed with piston, be set with leather cup on the dummy piston, piston nose is equipped with guide pin bushing, and valve body one end is installed with the spring outer cover, is provided with spring in the spring outer cover, the other end of valve body is installed with discharge outlet, the end dust plug of discharge outlet.
Oil-feed interface, oil out port are installed on the described body wall.
Tandem two-chamber apportioning valve of the present utility model is separated two chambeies with dummy piston, and by dummy piston balance two chamber brake fluid pressures, pressure reduction is very little, brakes more stable simultaneously.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Referring to accompanying drawing, tandem two-chamber apportioning valve includes valve body 1, have valve pocket 2 in the valve body 1, dummy piston 3 is installed in the valve pocket 2, and the two ends of dummy piston 3 are separately installed with piston 4, are set with leather cup 5 on the dummy piston 3, piston nose is equipped with guide pin bushing 6, valve body 1 one ends are installed with spring outer cover 7, are provided with spring 8 in the spring outer cover 7, and the other end of valve body is installed with discharge outlet, the end dust plug of discharge outlet is equipped with oil-feed interface, oil out port on the body wall.
Claims (2)
1. tandem two-chamber apportioning valve, include valve body, have valve pocket in the valve body, it is characterized in that: in the described valve pocket dummy piston is installed, the two ends of dummy piston are separately installed with piston, be set with leather cup on the dummy piston, piston nose is equipped with guide pin bushing, and valve body one end is installed with the spring outer cover, is provided with spring in the spring outer cover, the other end of valve body is installed with discharge outlet, the end dust plug of discharge outlet.
2. tandem two-chamber apportioning valve according to claim 1 is characterized in that: oil-feed interface, oil out port are installed on the described body wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220323817 CN202686349U (en) | 2012-07-05 | 2012-07-05 | Series-type dual-chamber proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220323817 CN202686349U (en) | 2012-07-05 | 2012-07-05 | Series-type dual-chamber proportional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202686349U true CN202686349U (en) | 2013-01-23 |
Family
ID=47542007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220323817 Expired - Fee Related CN202686349U (en) | 2012-07-05 | 2012-07-05 | Series-type dual-chamber proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202686349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204065A (en) * | 2013-03-14 | 2013-07-17 | 江苏友谊汽车有限公司 | Emergency control circuit of school bus |
-
2012
- 2012-07-05 CN CN 201220323817 patent/CN202686349U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204065A (en) * | 2013-03-14 | 2013-07-17 | 江苏友谊汽车有限公司 | Emergency control circuit of school bus |
| CN103204065B (en) * | 2013-03-14 | 2015-01-28 | 江苏友谊汽车有限公司 | Emergency control circuit of school bus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20130705 |