JPS5657553A - Liquid pressure controlling device for double piping - Google Patents
Liquid pressure controlling device for double pipingInfo
- Publication number
- JPS5657553A JPS5657553A JP13320379A JP13320379A JPS5657553A JP S5657553 A JPS5657553 A JP S5657553A JP 13320379 A JP13320379 A JP 13320379A JP 13320379 A JP13320379 A JP 13320379A JP S5657553 A JPS5657553 A JP S5657553A
- Authority
- JP
- Japan
- Prior art keywords
- liquid pressure
- caused
- balance piston
- plunger
- failure
- 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 enable a control in the same manner as a normal time even when a failure is caused in one system by a method wherein a normally-opened communicating path in a B system is closed when a relative movement between a plunger and a balance piston exceeds a predetermined value, in a captioned device in a vehicle brake system.
CONSTITUTION: When a failure in a liquid pressure is caused in B system, the operation in the B system is same as that upon the normal operation except that a balance piston 11 will not be caused to move to the left. On the other hand, when a failure is caused in A system, a liquid pressure is acted on the left side only of the balance piston 11 and as this liquid pressure is increased, a control piston 13 is moved to the left against a spring energizing force of a control spring 16. In this case, if a plunger 5 is not caused to move, communication between small output liquid chambers b1, b2 in the B system is shut off because a flow path thereof is closed by a check valve mechanism and an increase of the output liquid pressure will not be obtained at all, whereby, the plunger 5 is followed the left movement of the balance piston 11 to obtain a liquid pressure in the same manner as that of the normal time.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13320379A JPS5657553A (en) | 1979-10-16 | 1979-10-16 | Liquid pressure controlling device for double piping |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13320379A JPS5657553A (en) | 1979-10-16 | 1979-10-16 | Liquid pressure controlling device for double piping |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5657553A true JPS5657553A (en) | 1981-05-20 |
Family
ID=15099133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13320379A Pending JPS5657553A (en) | 1979-10-16 | 1979-10-16 | Liquid pressure controlling device for double piping |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5657553A (en) |
-
1979
- 1979-10-16 JP JP13320379A patent/JPS5657553A/en active Pending
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