JPS57110554A - Liquid pressure control device for double piping - Google Patents
Liquid pressure control device for double pipingInfo
- Publication number
- JPS57110554A JPS57110554A JP18772080A JP18772080A JPS57110554A JP S57110554 A JPS57110554 A JP S57110554A JP 18772080 A JP18772080 A JP 18772080A JP 18772080 A JP18772080 A JP 18772080A JP S57110554 A JPS57110554 A JP S57110554A
- Authority
- JP
- Japan
- Prior art keywords
- control
- piston
- valve
- control piston
- cross sectional
- 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.)
- Pending
Links
Landscapes
- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
PURPOSE: To simplify the device by a method wherein the cross sectional area of a control piston is made larger than that of a balance piston and the parting distance of a fail-safe clip is rendered to be smaller than the stroke of the control piston.
CONSTITUTION: A control piston 10 constitutes a proportional valve, together with a control spring 14, a valve body part 11 and a valve seat 12. A balance piston 20, the parting distance of which from the control piston 10 is limited to S2 by being connected with the fail-safe clip 17, constitute a trailing type valve together with a valve body part 21 and a valve seat 22. The stroke of the control piston 10 is rendered to be S1 and the relationship S1>S2 is established. Furthermore, the cross sectional area A1 of the control piston 10 is made larger than that A2 of the balance piston 20. When something wrong at the trailing side, the proportional valve is actuated by the difference of the cross sectional areas. When something wrong at the control side, the balance piston 20, being applied with the control spring 14, acts as a limiting valve, resulting in doubling the control pressure.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18772080A JPS57110554A (en) | 1980-12-29 | 1980-12-29 | Liquid pressure control device for double piping |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18772080A JPS57110554A (en) | 1980-12-29 | 1980-12-29 | Liquid pressure control device for double piping |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57110554A true JPS57110554A (en) | 1982-07-09 |
Family
ID=16210985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18772080A Pending JPS57110554A (en) | 1980-12-29 | 1980-12-29 | Liquid pressure control device for double piping |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57110554A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5939254U (en) * | 1982-09-07 | 1984-03-13 | 曙ブレーキ工業株式会社 | Load-responsive double-piped hydraulic control device |
CN1332838C (en) * | 2005-07-12 | 2007-08-22 | 浙江亚太机电股份有限公司 | Proportional valve having failure protective device |
CN1332839C (en) * | 2005-08-02 | 2007-08-22 | 浙江亚太机电股份有限公司 | Single chamber failure protection apparatus of double chamber proportioning valve |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52124583A (en) * | 1976-04-12 | 1977-10-19 | Nissan Motor Co Ltd | Brake oil press. control valve |
JPS5784252A (en) * | 1980-11-15 | 1982-05-26 | Nissin Kogyo Kk | Brake oil pressure control valve for vehicle |
-
1980
- 1980-12-29 JP JP18772080A patent/JPS57110554A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52124583A (en) * | 1976-04-12 | 1977-10-19 | Nissan Motor Co Ltd | Brake oil press. control valve |
JPS5784252A (en) * | 1980-11-15 | 1982-05-26 | Nissin Kogyo Kk | Brake oil pressure control valve for vehicle |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5939254U (en) * | 1982-09-07 | 1984-03-13 | 曙ブレーキ工業株式会社 | Load-responsive double-piped hydraulic control device |
JPH0234135Y2 (en) * | 1982-09-07 | 1990-09-13 | ||
CN1332838C (en) * | 2005-07-12 | 2007-08-22 | 浙江亚太机电股份有限公司 | Proportional valve having failure protective device |
CN1332839C (en) * | 2005-08-02 | 2007-08-22 | 浙江亚太机电股份有限公司 | Single chamber failure protection apparatus of double chamber proportioning valve |
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