JPS5579736A - Reduced speed sensing type liquid pressure control valve - Google Patents

Reduced speed sensing type liquid pressure control valve

Info

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
Application number
JP15330378A
Other languages
Japanese (ja)
Inventor
Toshifumi Maehara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akebono Brake Industry Co Ltd
Original Assignee
Akebono Brake Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Akebono Brake Industry Co Ltd filed Critical Akebono Brake Industry Co Ltd
Priority to JP15330378A priority Critical patent/JPS5579736A/en
Publication of JPS5579736A publication Critical patent/JPS5579736A/en
Pending legal-status Critical Current

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
JP15330378A 1978-12-12 1978-12-12 Reduced speed sensing type liquid pressure control valve Pending JPS5579736A (en)

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)

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