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JPS57167857A - Braking oil pressure control device for vehicle brake system - Google Patents

Braking oil pressure control device for vehicle brake system

Info

Publication number
JPS57167857A
JPS57167857A JP7263781A JP7263781A JPS57167857A JP S57167857 A JPS57167857 A JP S57167857A JP 7263781 A JP7263781 A JP 7263781A JP 7263781 A JP7263781 A JP 7263781A JP S57167857 A JPS57167857 A JP S57167857A
Authority
JP
Japan
Prior art keywords
oil
housing
attached
seal member
pressure receiving
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.)
Granted
Application number
JP7263781A
Other languages
Japanese (ja)
Other versions
JPH0147334B2 (en
Inventor
Mitsutoyo Mizusawa
Koichi Miyasaka
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.)
Nissin Kogyo Co Ltd
Original Assignee
Nissin Kogyo 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 Nissin Kogyo Co Ltd filed Critical Nissin Kogyo Co Ltd
Priority to JP7263781A priority Critical patent/JPS57167857A/en
Publication of JPS57167857A publication Critical patent/JPS57167857A/en
Publication of JPH0147334B2 publication Critical patent/JPH0147334B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/26—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)

Abstract

PURPOSE:To provide a means to detect oil leak failure by dividablly joining a housing at the middle a housing containing a pair of pressure receiving pistons and connecting the inside and outside of such joined part with a small hole to allow the flow of working oil from the inside only through said hole. CONSTITUTION:A proportional valve consists of a pressure receiving piston 9, a valve 23 and a pressure adjusting spring 13, its housing 5 being divided to a left part 51 and a right part 52 at its middle, one-way sealing member 29 being attached to a seal housing 34 on such divided surface, and a small hole 28 being connected to the outside. When a seal member 301 attached to the outer circumference of either one of the pressure receiving piston 91 or a seal member 311 attached to the outer circumference of a valve transfer piston 111 is worn or damaged to allow flow of working oil from an input oul pressure chamber 181 to a larger diameter hole 81, such oil flows outside through the one-way seal member 29 and the small hole 28 thereby enabling the detection of failure through the abnormal change of oil level in the oil reservoir of the master cylinder M.
JP7263781A 1981-05-14 1981-05-14 Braking oil pressure control device for vehicle brake system Granted JPS57167857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7263781A JPS57167857A (en) 1981-05-14 1981-05-14 Braking oil pressure control device for vehicle brake system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7263781A JPS57167857A (en) 1981-05-14 1981-05-14 Braking oil pressure control device for vehicle brake system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP5345081A Division JPS57167854A (en) 1981-04-09 1981-04-09 Braking oil pressure control device for vehicle brake system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP15168681A Division JPS57167858A (en) 1981-09-25 1981-09-25 Failure detection device for braking oil pressure control device of vehicle

Publications (2)

Publication Number Publication Date
JPS57167857A true JPS57167857A (en) 1982-10-15
JPH0147334B2 JPH0147334B2 (en) 1989-10-13

Family

ID=13495096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7263781A Granted JPS57167857A (en) 1981-05-14 1981-05-14 Braking oil pressure control device for vehicle brake system

Country Status (1)

Country Link
JP (1) JPS57167857A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5889448A (en) * 1981-11-20 1983-05-27 Nissan Motor Co Ltd Liquid pressure control valve for two-channel piping
US4492411A (en) * 1981-10-29 1985-01-08 Sumitomo Electric Industries, Ltd. Brake pressure control valve with a disabler for split braking system
JPS61291260A (en) * 1985-06-18 1986-12-22 Nissin Kogyo Kk Trouble detecting device for brake oil pressure controlling device of vehicle
KR19990041132A (en) * 1997-11-21 1999-06-15 정몽규 Load sensing proportioning valve for automotive brake system
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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4492411A (en) * 1981-10-29 1985-01-08 Sumitomo Electric Industries, Ltd. Brake pressure control valve with a disabler for split braking system
JPS5889448A (en) * 1981-11-20 1983-05-27 Nissan Motor Co Ltd Liquid pressure control valve for two-channel piping
JPH0143659B2 (en) * 1981-11-20 1989-09-21 Nitsusan Jidosha Kk
JPS61291260A (en) * 1985-06-18 1986-12-22 Nissin Kogyo Kk Trouble detecting device for brake oil pressure controlling device of vehicle
JPH0343107B2 (en) * 1985-06-18 1991-07-01 Nisshin Kogyo Kk
KR19990041132A (en) * 1997-11-21 1999-06-15 정몽규 Load sensing proportioning valve for automotive brake system
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

Also Published As

Publication number Publication date
JPH0147334B2 (en) 1989-10-13

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