IT1270355B - Servomodulatore di frenata con valvola rele' per impianti pneumatici di frenatura - Google Patents

Servomodulatore di frenata con valvola rele' per impianti pneumatici di frenatura

Info

Publication number
IT1270355B
IT1270355B ITTO930337A ITTO930337A IT1270355B IT 1270355 B IT1270355 B IT 1270355B IT TO930337 A ITTO930337 A IT TO930337A IT TO930337 A ITTO930337 A IT TO930337A IT 1270355 B IT1270355 B IT 1270355B
Authority
IT
Italy
Prior art keywords
control
chamber
braking
relay valve
servomodulator
Prior art date
Application number
ITTO930337A
Other languages
English (en)
Inventor
Domenico Angelillo
Original Assignee
Bendix Heavy Vehicle Syst
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 Bendix Heavy Vehicle Syst filed Critical Bendix Heavy Vehicle Syst
Priority to ITTO930337A priority Critical patent/IT1270355B/it
Publication of ITTO930337A0 publication Critical patent/ITTO930337A0/it
Priority to DE4415925A priority patent/DE4415925A1/de
Publication of ITTO930337A1 publication Critical patent/ITTO930337A1/it
Application granted granted Critical
Publication of IT1270355B publication Critical patent/IT1270355B/it

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
    • 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
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/18—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere
    • B60T15/20—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere controlled by two fluid pressures

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Regulating Braking Force (AREA)

Abstract

Il servomodulatore comprende un corpo (11) con un primo ed un secondo ingresso di comando (41, 42) destinati a ricevere pressioni di comando della frenatura (p41, p42) per un primo e, rispettivamente, un secondo asse, un ingresso di alimentazione (1) per la pressione di frenatura proveniente da una sorgente di pressione esterna, un'uscita (2) da collegare al circuito frenante di un asse dell'autoveicolo, e un'apertura di scarico (3).Nel corpo (11) è provvista una valvola relè (30, 90-92) includente uno stantuffo di comando (30), per controllare la comunicazione fra l'ingresso di alimentazione (1) e detta uscita (2) del corpo (11), e fra una camera di reazione (100) adiacente allo stantuffo (30) e l'apertura di scarico (3) del corpo (11). Da parte opposta alla camera di reazione (100) rispetto allo stantuffo (30), sono definite una prima ed una seconda camera di comando (70, 20) in cui sono scorrevoli a tenuta due porzioni distinte di tale stantuffo (30); la prima camera (70) comunica con il primo ingresso di comando del corpo (11). Fra il primo ed il secondo ingresso di comando (41, 42) vi è una valvola differenziale (73) che controlla la comunicazione fra la seconda camera di comando (20) e, selettivamente, il primo ed il secondo ingresso di comando (41, 42) del corpo (11).(Fig. 1).
ITTO930337A 1993-05-17 1993-05-17 Servomodulatore di frenata con valvola rele' per impianti pneumatici di frenatura IT1270355B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITTO930337A IT1270355B (it) 1993-05-17 1993-05-17 Servomodulatore di frenata con valvola rele' per impianti pneumatici di frenatura
DE4415925A DE4415925A1 (de) 1993-05-17 1994-05-05 Servobremsmodulator mit Relaisventil für pneumatische Bremsanlagen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO930337A IT1270355B (it) 1993-05-17 1993-05-17 Servomodulatore di frenata con valvola rele' per impianti pneumatici di frenatura

Publications (3)

Publication Number Publication Date
ITTO930337A0 ITTO930337A0 (it) 1993-05-17
ITTO930337A1 ITTO930337A1 (it) 1994-11-17
IT1270355B true IT1270355B (it) 1997-05-05

Family

ID=11411481

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO930337A IT1270355B (it) 1993-05-17 1993-05-17 Servomodulatore di frenata con valvola rele' per impianti pneumatici di frenatura

Country Status (2)

Country Link
DE (1) DE4415925A1 (it)
IT (1) IT1270355B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201122011D0 (en) 2011-12-21 2012-02-01 Haldex Brake Products Ltd Valve assembly
CN111963593B (zh) * 2020-08-22 2022-04-29 东科克诺尔商用车制动技术有限公司 一种双活塞差动阀总成

Also Published As

Publication number Publication date
ITTO930337A0 (it) 1993-05-17
ITTO930337A1 (it) 1994-11-17
DE4415925A1 (de) 1994-12-15

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970530