FR2427232A1 - IMPROVEMENTS RELATED TO HYDRAULIC BRAKING CIRCUITS - Google Patents

IMPROVEMENTS RELATED TO HYDRAULIC BRAKING CIRCUITS

Info

Publication number
FR2427232A1
FR2427232A1 FR7913861A FR7913861A FR2427232A1 FR 2427232 A1 FR2427232 A1 FR 2427232A1 FR 7913861 A FR7913861 A FR 7913861A FR 7913861 A FR7913861 A FR 7913861A FR 2427232 A1 FR2427232 A1 FR 2427232A1
Authority
FR
France
Prior art keywords
piston
braking circuits
balance
spring
master cylinder
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
FR7913861A
Other languages
French (fr)
Other versions
FR2427232B1 (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.)
Automotive Products PLC
Original Assignee
Automotive Products PLC
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 Automotive Products PLC filed Critical Automotive Products PLC
Publication of FR2427232A1 publication Critical patent/FR2427232A1/en
Application granted granted Critical
Publication of FR2427232B1 publication Critical patent/FR2427232B1/fr
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
    • B60T8/18—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution
    • B60T8/1812—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution characterised by the means for pressure reduction
    • B60T8/1818—Lever mechanism

Landscapes

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

Abstract

Ce régulateur comporte un balancier 29 dont la position du point d'appui 28 dépend de la charge appliquée à un essieu 15 du véhicule et qui commande l'envoi de liquide hydraulique d'un maître-cylindre 12, par l'intermédiaire d'une soupape à bille 43, 44, aux freins de l'essieu. La pression de freinage agît sur le balancier 29 par l'intermédiaire d'un piston 46 a l'encontre de la pression du maître-cylindre qui agit par l'intermédiaire d'un piston 35 et d'un piston 39. Un ressort de compression préchargé 40 s'oppose à l'action du piston 39. En variante, le piston 39 et le ressort 40 peuvent être remplacés par une soupape réductrice de pression classique montée dans la canalisation d'alimentation du piston 35. Application aux circuits de freinage des véhicules utilitaires.This regulator comprises a balance 29 whose position of the fulcrum 28 depends on the load applied to an axle 15 of the vehicle and which controls the sending of hydraulic fluid to a master cylinder 12, via a ball valve 43, 44, to the axle brakes. The braking pressure acts on the balance 29 via a piston 46 against the pressure of the master cylinder which acts via a piston 35 and a piston 39. A spring of preloaded compression 40 opposes the action of the piston 39. As a variant, the piston 39 and the spring 40 can be replaced by a conventional pressure reducing valve mounted in the supply line of the piston 35. Application to braking circuits commercial vehicles.

FR7913861A 1978-05-31 1979-05-30 IMPROVEMENTS RELATED TO HYDRAULIC BRAKING CIRCUITS Granted FR2427232A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB2572978 1978-05-31
GB2573078 1978-05-31
GB7917209A GB2022206B (en) 1978-05-31 1979-05-17 Load responsive brake control valves

Publications (2)

Publication Number Publication Date
FR2427232A1 true FR2427232A1 (en) 1979-12-28
FR2427232B1 FR2427232B1 (en) 1984-11-30

Family

ID=27258470

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7913861A Granted FR2427232A1 (en) 1978-05-31 1979-05-30 IMPROVEMENTS RELATED TO HYDRAULIC BRAKING CIRCUITS

Country Status (2)

Country Link
FR (1) FR2427232A1 (en)
GB (1) GB2022206B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60195263U (en) * 1984-06-06 1985-12-26 アイシン精機株式会社 Load responsive hydraulic control valve
DE3435176C2 (en) * 1984-09-25 1994-05-11 Rexroth Mannesmann Gmbh Load-dependent balance beam brake pressure control valve for motor vehicle brakes
ATE93786T1 (en) * 1988-03-15 1993-09-15 Oerlikon Knorr Eisenbahntech BRAKE VALVE, ESPECIALLY A DRIVER'S BRAKE VALVE AND A LOAD SENSING BRAKE VALVE FOR CONTROLLING BRAKE LINE PRESSURE.
CH680120A5 (en) * 1989-05-31 1992-06-30 Oerlikon Knorr Eisenbahntech

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1051484A (en) * 1963-04-02 1900-01-01
FR977052A (en) * 1942-06-12 1951-03-27 Citroen Sa Andre Brake control relay
DE1251668B (en) * 1967-10-05
FR2030692A5 (en) * 1969-08-21 1970-11-13 Bosch
FR2285271A1 (en) * 1974-09-17 1976-04-16 Dba BRAKE CORRECTOR
DE2556308A1 (en) * 1975-12-13 1977-06-23 Knorr Bremse Gmbh Venting control for load sensitive brake valve - with non return valve in side of sleeve valve element
DE2642077A1 (en) * 1976-09-18 1978-03-23 Bosch Gmbh Robert LOAD DEPENDENT BRAKE FORCE REGULATOR

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1251668B (en) * 1967-10-05
FR977052A (en) * 1942-06-12 1951-03-27 Citroen Sa Andre Brake control relay
GB1051484A (en) * 1963-04-02 1900-01-01
FR2030692A5 (en) * 1969-08-21 1970-11-13 Bosch
FR2285271A1 (en) * 1974-09-17 1976-04-16 Dba BRAKE CORRECTOR
DE2556308A1 (en) * 1975-12-13 1977-06-23 Knorr Bremse Gmbh Venting control for load sensitive brake valve - with non return valve in side of sleeve valve element
DE2642077A1 (en) * 1976-09-18 1978-03-23 Bosch Gmbh Robert LOAD DEPENDENT BRAKE FORCE REGULATOR

Also Published As

Publication number Publication date
GB2022206A (en) 1979-12-12
GB2022206B (en) 1982-06-09
FR2427232B1 (en) 1984-11-30

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Legal Events

Date Code Title Description
ST Notification of lapse