ES8405325A1 - A brake pressure regulator for an hydraulic vehicle braking system - Google Patents

A brake pressure regulator for an hydraulic vehicle braking system

Info

Publication number
ES8405325A1
ES8405325A1 ES526067A ES526067A ES8405325A1 ES 8405325 A1 ES8405325 A1 ES 8405325A1 ES 526067 A ES526067 A ES 526067A ES 526067 A ES526067 A ES 526067A ES 8405325 A1 ES8405325 A1 ES 8405325A1
Authority
ES
Spain
Prior art keywords
piston
pressure
stop
stepped piston
pressure regulator
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.)
Expired
Application number
ES526067A
Other languages
Spanish (es)
Other versions
ES526067A0 (en
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries 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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of ES526067A0 publication Critical patent/ES526067A0/en
Publication of ES8405325A1 publication Critical patent/ES8405325A1/en
Expired 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
    • B60T8/262—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 using valves with stepped characteristics
    • B60T8/265—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 using valves with stepped characteristics for hydraulic brake systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)
  • Regulating Braking Force (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

In a housing (10), a stepped piston (40) bounds an inlet chamber (20) with its smaller face (A36) and an outlet chamber (24) with its larger face (A38). These two chambers (20, 24) are connected to each other by a valve (44, 46) which is controlled by the stepped piston (40). The inlet chamber (20) is also bounded by an auxiliary piston (30). Between the two pistons (30, 40), a spring (54) is arranged which tends to hold the stepped piston (40) at a first stop (52) against the pressure in the outlet chamber (24) and to hold the auxiliary piston (30) at a second stop (56) against the pressure in the inlet chamber (20). The difference between the faces (A38-A36) of the stepped piston (40) is greater than the operative face (A30-A36) of the auxiliary piston (30) on the inlet side. Movement of the auxiliary piston (30) in the direction of the outlet chamber (24) is limited by a third stop (58) formed on the housing (10), said stop not interfering with the freedom of movement of the stepped piston (40). The brake pressure regulator, which is preferably connected in series to one or more rear-wheel brakes, thus takes on a regulating characteristic which closely conforms to the ideal, almost parabolic curve of pressure in the rear- wheel brakes in relation to the pressure in the front-wheel brakes.
ES526067A 1982-09-30 1983-09-29 A brake pressure regulator for an hydraulic vehicle braking system Expired ES8405325A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823236321 DE3236321A1 (en) 1982-09-30 1982-09-30 BRAKE FORCE CONTROLLER FOR A HYDRAULIC VEHICLE BRAKE SYSTEM

Publications (2)

Publication Number Publication Date
ES526067A0 ES526067A0 (en) 1984-06-01
ES8405325A1 true ES8405325A1 (en) 1984-06-01

Family

ID=6174639

Family Applications (1)

Application Number Title Priority Date Filing Date
ES526067A Expired ES8405325A1 (en) 1982-09-30 1983-09-29 A brake pressure regulator for an hydraulic vehicle braking system

Country Status (6)

Country Link
JP (1) JPS5984653A (en)
DE (1) DE3236321A1 (en)
ES (1) ES8405325A1 (en)
FR (1) FR2533872A1 (en)
GB (1) GB2127508A (en)
IT (1) IT1169562B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199910B (en) * 1987-01-19 1991-08-28 Nippon Air Brake Co Fluid pressure control valve
JP2782207B2 (en) * 1988-10-24 1998-07-30 株式会社ナブコ Machine parts and hydraulic pressure control valves containing the parts
DE4237451A1 (en) * 1992-11-06 1994-05-11 Teves Gmbh Alfred Hydraulic pressure reducing valve
FR2861677B1 (en) * 2003-10-29 2006-02-10 Beringer Sa PRESSURE LIMITING DEVICE FOR A HYDRAULIC BRAKE CIRCUIT OF A VEHICLE
DE102007011134A1 (en) 2007-03-07 2008-09-11 Johann Hay Gmbh & Co. Kg Automobiltechnik Driving disks and process for their production

Also Published As

Publication number Publication date
FR2533872A1 (en) 1984-04-06
GB2127508A (en) 1984-04-11
IT1169562B (en) 1987-06-03
ES526067A0 (en) 1984-06-01
DE3236321A1 (en) 1984-04-05
IT8322860A1 (en) 1985-03-13
GB8325025D0 (en) 1983-10-19
IT8322860A0 (en) 1983-09-13
JPS5984653A (en) 1984-05-16

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Legal Events

Date Code Title Description
MM4A Patent lapsed

Effective date: 19960401