GB927688A - Fluid pressure control valves - Google Patents

Fluid pressure control valves

Info

Publication number
GB927688A
GB927688A GB33038/61A GB3303861A GB927688A GB 927688 A GB927688 A GB 927688A GB 33038/61 A GB33038/61 A GB 33038/61A GB 3303861 A GB3303861 A GB 3303861A GB 927688 A GB927688 A GB 927688A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
tube
chamber
bore
piston
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
GB33038/61A
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.)
Bendix Corp
Original Assignee
Bendix Corp
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 Corp filed Critical Bendix Corp
Publication of GB927688A publication Critical patent/GB927688A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T13/00Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/241Differential pressure systems
    • B60T13/242The control valve is provided as one unit with the servomotor cylinder
    • B60T13/245Hydraulic command of the control valve, hydraulic transmission to the brake
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B17/00Combinations of telemotor and servomotor systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/126Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
    • F16K31/128Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like servo actuated
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/365Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a diaphragm
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86493Multi-way valve unit
    • Y10T137/86574Supply and exhaust
    • Y10T137/86622Motor-operated
    • Y10T137/8663Fluid motor
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86493Multi-way valve unit
    • Y10T137/86574Supply and exhaust
    • Y10T137/8667Reciprocating valve
    • Y10T137/86694Piston valve
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86919Sequentially closing and opening alternately seating flow controllers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Braking Systems And Boosters (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)

Abstract

927,688. Fluid-pressure brakes. BENDIX CORPORATION. Sept. 14, 1961 [Oct. 3, 1960], No. 33038/61. Class 103 (1). [Also in Group XXIX] Apparatus controlling vehicle brakes consists of an hydraulic intensifier piston B connected with lost-motion to the rod 16 of a vacuumsuspended spring-loaded diaphragm C; the piston B slides in a bore 14 and its rearward position is defined by a shoulder 26 having a washer 24 positioned by a further washer 30 and a perforated bushing 32. Fluid-pressure from a master cylinder is admitted to the rear of the piston B via a port 46; the forward end of the piston B has a compensating bore 52 opening to the bore 14 by a port 54, the inner end of the bore 52 being controlled by a ball 56 on the end of the rod 16. The operation of the diaphragm C is controlled by a self-lapping valve arrangement E embodying a vacuum chamber 64 always open to the diaphragm chamber 60, a control 68 leading to the diaphragm chamber 58 and an atmospheric chamber 72. A spring-loaded elastomeric diaphragm 76 attached to the intensifier housing defines chambers 64, 68, whilst the diaphragm periphery is extended to form the chamber 72 which is separated from chamber 68 by a partition 78 with an opening 82 therethrough controlled by a poppet valve 86 which is aligned with a tube 84 in the diaphragm 76 providing communication between chambers 64, 68. The poppet valve 86, which is spring closed, has a closure portion 90 and an inner flange 92. The diaphragm 76 is retained upon the tube 84 by plates 100, 104, the latter of which is curved, and a groove 106 in the tube; a hub part 94 of the diaphragm extends over and beyond the end of the tube and is rounded away from the latter to ensure a good seal with the flange 92. The inner end of the tube 84 is solid and is housed in a bore 110 which opens to the chamber at the rear of the intensifier piston B and hence to the port 46. When pressure from the master cylinder is applied to the port 46 the tube 84 is lowered so that the hub 94 abuts flange 92 and closes off the vacuum connection to diaphragm chamber 58, the hub end subsequently deforming until the end of the tube 84 abuts the flange 92; continued movement of the tube 84 unseats the poppet valve 86 to admit air from chamber 72 and diaphragm chamber 58 via control chamber 68, the pressure build-up in the latter causing the hub 94 to be biased radially on to the tube 84. The resulting motion of the diaphragm C causes the ball 56 to close the compensating bore 52 and move the piston B into the bore 14, the displaced fluid operating the braking system. The pressure continues to build up in control chamber 68 until the diaphragm 76 is urged upwardly a sufficient amount to enable the poppet valve 86 to reseat. The pressure in the port 46 is reduced to release the braking effort so that the diaphragm 76 moves further upwards to open the passage through the tube 84 the piston B travels leftwardly and displaces fluid against the tube 84 which again seats on the flange 92. Complete removal of pressure from the port 46 causes the parts to return to the inoperative position shown.
GB33038/61A 1960-10-03 1961-09-14 Fluid pressure control valves Expired GB927688A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US59914A US3108615A (en) 1960-10-03 1960-10-03 Reaction valve construction

Publications (1)

Publication Number Publication Date
GB927688A true GB927688A (en) 1963-06-06

Family

ID=22026101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33038/61A Expired GB927688A (en) 1960-10-03 1961-09-14 Fluid pressure control valves

Country Status (2)

Country Link
US (1) US3108615A (en)
GB (1) GB927688A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3357311A (en) * 1965-10-11 1967-12-12 Bendix Corp Servomotor system
US3482605A (en) * 1967-11-13 1969-12-09 James S Ballantine Differential pressure pneumatic device
US3487846A (en) * 1968-03-15 1970-01-06 Robertshaw Controls Co Pneumatic control system and pneumatically operated actuator therefor or the like
US3613733A (en) * 1969-05-08 1971-10-19 John A Machek Antiskid mechanism
US3646758A (en) * 1970-03-30 1972-03-07 Bendix Corp Vacuum control for servomotor
US10260639B2 (en) 2013-06-10 2019-04-16 Fisher Controls International Llc Actuator bushings having integral seals

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2393524A (en) * 1943-10-04 1946-01-22 Bendix Aviat Corp Control for fluid pressure power devices
US2910051A (en) * 1957-05-16 1959-10-27 Bendix Aviat Corp Pneumatic brake valve to provide feel
US2797665A (en) * 1953-03-30 1957-07-02 Automotive Prod Co Ltd Servo-assisted liquid pressure braking systems for vehicles
US2805647A (en) * 1955-08-31 1957-09-10 Kelsey Hayes Co Booster brake mechanism

Also Published As

Publication number Publication date
US3108615A (en) 1963-10-29

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