JPS55140638A - Liquid pressure controller for double piping - Google Patents

Liquid pressure controller for double piping

Info

Publication number
JPS55140638A
JPS55140638A JP4683879A JP4683879A JPS55140638A JP S55140638 A JPS55140638 A JP S55140638A JP 4683879 A JP4683879 A JP 4683879A JP 4683879 A JP4683879 A JP 4683879A JP S55140638 A JPS55140638 A JP S55140638A
Authority
JP
Japan
Prior art keywords
piston
slidably engaged
valve mechanism
spring
liquid pressure
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
JP4683879A
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 JP4683879A priority Critical patent/JPS55140638A/en
Priority to US06/109,116 priority patent/US4322114A/en
Priority to FR8000562A priority patent/FR2446205A1/en
Priority to GB8000962A priority patent/GB2041127B/en
Priority to DE3001001A priority patent/DE3001001C2/en
Publication of JPS55140638A publication Critical patent/JPS55140638A/en
Pending legal-status Critical Current

Links

Landscapes

  • Hydraulic Control Valves For Brake Systems (AREA)

Abstract

PURPOSE: To increase the braking force of rear wheels as compared with that at the time of normal operation of a controller, by releasing the operation of a valve mechanism in the other system under normal operation and always linking input and output liquid chambers when one of the two independent liquid pressure systems causes a failure.
CONSTITUTION: A tubular fail-safe piston 5 with stepped portions is slidably engaged into value cylinders 2, 3 with stepped portions and pressed rightward by a stopper spring 8 through a valve seat 6 and spring seat 7. A balance piston 12 is slidably engaged into said piston 5 to divide it into right and left liquid chamber a2, b2 which are linked to a rear wheel brake system repectively through output ports 14, 15. While in the cylinder 2, a control piston 16, in which one end is slidably engaged in a blind-holed cylinder 17 and the other end in the piston 5, is housed to construct a first valve mechanism of a system (a). Further a ball 25 that constitutes a second valve mechanism of a system (b) with a valve seat 26 of the piston 5 is provided and pressed leftward by a spring 27.
COPYRIGHT: (C)1980,JPO&Japio
JP4683879A 1979-01-12 1979-04-17 Liquid pressure controller for double piping Pending JPS55140638A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP4683879A JPS55140638A (en) 1979-04-17 1979-04-17 Liquid pressure controller for double piping
US06/109,116 US4322114A (en) 1979-01-12 1980-01-02 Hydraulic pressure control device for double hydraulic piping for vehicle brakes
FR8000562A FR2446205A1 (en) 1979-01-12 1980-01-11 HYDRAULIC PRESSURE CONTROL DEVICE FOR DUAL VEHICLE BRAKE HYDRAULIC PIPE
GB8000962A GB2041127B (en) 1979-01-12 1980-01-11 Hydraulic pressure control valve assembly for dual circuit braking systems
DE3001001A DE3001001C2 (en) 1979-01-12 1980-01-12 Dual circuit braking system for motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4683879A JPS55140638A (en) 1979-04-17 1979-04-17 Liquid pressure controller for double piping

Publications (1)

Publication Number Publication Date
JPS55140638A true JPS55140638A (en) 1980-11-04

Family

ID=12758473

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4683879A Pending JPS55140638A (en) 1979-01-12 1979-04-17 Liquid pressure controller for double piping

Country Status (1)

Country Link
JP (1) JPS55140638A (en)

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