JPS5579736A - Reduced speed sensing type liquid pressure control valve - Google Patents
Reduced speed sensing type liquid pressure control valveInfo
- Publication number
- JPS5579736A JPS5579736A JP15330378A JP15330378A JPS5579736A JP S5579736 A JPS5579736 A JP S5579736A JP 15330378 A JP15330378 A JP 15330378A JP 15330378 A JP15330378 A JP 15330378A JP S5579736 A JPS5579736 A JP S5579736A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- control
- liquid pressure
- constituting
- piston
- 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 to obtain an ideal distribution of brake power by constituting a proportioning valve with a first and a second control pistons constituting a first and a second valve mechanisms respectively and giving different activating liquid pressures for a slow ascending control at operation initiating points for respective pistons.
CONSTITUTION: A reduced speed sensing type liquid pressure control valve accomodates a proportioning valve 2, opening or closing passageways between an input and an output liquid chambers 7, 8, bypass-controlled through a G valve 3 closing a flow passageway by a predetermined reduced speed upon braking of a vehicle, by a balance between a energized power of a control spring 9 and an acting power of a liquid pressure. Here, the valve 2 is constituted with a first control piston 5, constituting a first valve mechanism, and a second control piston 12 constituting a second valve mechanism accomodated in the piston 5. Respective control pistons 5, 12 open flow passageways 10, 18 when they are moved by a liquid pressure against springs 9, 16, however, an activating liquid pressure for a slow ascending control at an operation initiating point of the piston 12 is set higher in this case.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15330378A JPS5579736A (en) | 1978-12-12 | 1978-12-12 | Reduced speed sensing type liquid pressure control valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15330378A JPS5579736A (en) | 1978-12-12 | 1978-12-12 | Reduced speed sensing type liquid pressure control valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5579736A true JPS5579736A (en) | 1980-06-16 |
Family
ID=15559522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15330378A Pending JPS5579736A (en) | 1978-12-12 | 1978-12-12 | Reduced speed sensing type liquid pressure control valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5579736A (en) |
-
1978
- 1978-12-12 JP JP15330378A patent/JPS5579736A/en active Pending
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