GB2016587A - Hydraulic pressure converters - Google Patents

Hydraulic pressure converters

Info

Publication number
GB2016587A
GB2016587A GB7907331A GB7907331A GB2016587A GB 2016587 A GB2016587 A GB 2016587A GB 7907331 A GB7907331 A GB 7907331A GB 7907331 A GB7907331 A GB 7907331A GB 2016587 A GB2016587 A GB 2016587A
Authority
GB
United Kingdom
Prior art keywords
piston
pressure space
pressure
force
reciprocation
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
GB7907331A
Other versions
GB2016587B (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.)
Girling Ltd
Original Assignee
Girling 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 Girling Ltd filed Critical Girling Ltd
Priority to GB7907331A priority Critical patent/GB2016587B/en
Publication of GB2016587A publication Critical patent/GB2016587A/en
Application granted granted Critical
Publication of GB2016587B publication Critical patent/GB2016587B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/103—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber
    • F04B9/107—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber rectilinear movement of the pumping member in the working direction being obtained by a single-acting liquid motor, e.g. actuated in the other direction by gravity or a spring
    • 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
    • B60T13/00—Transmitting 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
    • B60T13/10—Transmitting 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
    • B60T13/12—Transmitting 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 liquid
    • B60T13/14—Transmitting 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 liquid using accumulators or reservoirs fed by pumps
    • B60T13/148—Arrangements for pressure supply

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Braking Arrangements (AREA)

Abstract

A hydraulic pressure converter, e.g. for powering a vehicle braking system, comprises a differential piston 3, 4 which works in a stepped bore 2 in a housing 1. A pressure space 9 is defined in the housing at the end of a portion 4 of the piston 3 which is of smaller area so that reciprocation of the piston 3 in the bore 2 causes hydraulic fluid to be drawn into the pressure space 9 through a first one-way valve 10 and then pumped to an outlet 13 through a second one-way valve 11. Reciprocation of the piston 3 is accomplished by subjecting the piston 3 to pressure from a pump to move the piston 3 in a first direction away from a stop face 54 and against the force in a compression spring 29 so that hydraulic fluid is drawn into the pressure space. A valve assembly 22 is operative to reduce the force urging the piston 3 in the first direction when the displacement attains a predetermined value whereafter the spring 29 is operative to urge the piston 3 in a second opposite direction to force fluid to the outlet 13 from the pressure space 9. <IMAGE>
GB7907331A 1978-03-18 1979-03-01 Hydraulic pressure converters Expired GB2016587B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7907331A GB2016587B (en) 1978-03-18 1979-03-01 Hydraulic pressure converters

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1083678 1978-03-18
GB7907331A GB2016587B (en) 1978-03-18 1979-03-01 Hydraulic pressure converters

Publications (2)

Publication Number Publication Date
GB2016587A true GB2016587A (en) 1979-09-26
GB2016587B GB2016587B (en) 1982-05-19

Family

ID=26247789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7907331A Expired GB2016587B (en) 1978-03-18 1979-03-01 Hydraulic pressure converters

Country Status (1)

Country Link
GB (1) GB2016587B (en)

Also Published As

Publication number Publication date
GB2016587B (en) 1982-05-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee