GB778093A - Hydraulic pressure regulating device - Google Patents

Hydraulic pressure regulating device

Info

Publication number
GB778093A
GB778093A GB16787/55A GB1678755A GB778093A GB 778093 A GB778093 A GB 778093A GB 16787/55 A GB16787/55 A GB 16787/55A GB 1678755 A GB1678755 A GB 1678755A GB 778093 A GB778093 A GB 778093A
Authority
GB
United Kingdom
Prior art keywords
pressure
annular gap
regulating device
piston
valve
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
GB16787/55A
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.)
HEINZ TEVES
Original Assignee
HEINZ TEVES
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 HEINZ TEVES filed Critical HEINZ TEVES
Publication of GB778093A publication Critical patent/GB778093A/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
    • 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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/224—Master control, e.g. master cylinders with pressure-varying means, e.g. with two stage operation provided by use of different piston diameters including continuous variation from one diameter to another
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • G05D16/103—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger the sensing element placed between the inlet and outlet
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • G05D16/109—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger with two or more pistons acting as a single pressure controller that move together over range of motion during normal operations

Landscapes

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

Abstract

778,093 Hydraulic brakes. TEVES, H. and TEVES, E. A., [trading as TEVES MASCHINEN-UND ARMATURENFABRIK KOMM.- GES., A.]. June 10, 1955 [July 14, 1954], No. 16787/55. Class 103 (1). In an hydraulic pressure regulating device, particularly for use in regulating the distribution of braking force in vehicle brakes, having a stepped piston operated by pressure from a pressure-generating means (for example a master cylinder), a valve controls communication between the annular gap formed ahead of the larger diameter end of the piston and the reservoir and is operated by spring force due to the low pressure range and, when the pressure increases is closed by means of a piston or the like which is acted upon by the pressure in the high pressure space such that the pressure in the annular gap rises as the working pressure rises. In the embodiment illustrated, showing the rest position of the device, the hydraulic pressure regulating device 1 is situated between the master cylinder and the pipe leading to the rear wheel brake cylinders. As pressure from the pressure generating means (the master cylinder), via pipe 2, increases, the control piston 3 is displaced to the left and the pressure in the high-pressure space 11 rises. Since the pressure exerted by the pressure generating means is initially low, the annular gap 4 communicates with annular channel 5 via bore 12 and valve opening 13 and bore 14. When the pressure in the high-pressure space 11 reaches a given value, piston 15 is displaced and opening 13 closed by valve 9 so that the pressure relief of the annular gap 4 is prevented. A further increase of pressure allows pressure medium to pass from the annular gap 4 only when the pressure in the annular chamber 5 is greater than the pressure urging valve 9 on to its seat. The pressure in annular gap 4 rises until it reaches a value equal to the pressure in the space 11 and then no further transmission of pressure takes place. A spring loaded valve 10 is provided to relieve any excess pressure set up in annular gap 4. By suitably dimensioning the regulating device, equalisation of the front and rear wheel braking power is obtained at the commencement of braking. Upon the attainment of a predetermined pressure in the master cylinder, no further increase in pressure is transmitted by the regulating device whereupon the front wheel brake power becomes greater than the rear wheel brake power to take account of the dynamic axle load displacement.
GB16787/55A 1954-07-14 1955-06-10 Hydraulic pressure regulating device Expired GB778093A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE778093X 1954-07-14

Publications (1)

Publication Number Publication Date
GB778093A true GB778093A (en) 1957-07-03

Family

ID=6686896

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16787/55A Expired GB778093A (en) 1954-07-14 1955-06-10 Hydraulic pressure regulating device

Country Status (2)

Country Link
FR (1) FR1125359A (en)
GB (1) GB778093A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1361381A2 (en) * 2002-05-08 2003-11-12 Ross Operating Valve Company High pressure valve
CN109070860A (en) * 2016-04-21 2018-12-21 罗伯特·博世有限公司 Pressure controlled vehicle brake apparatus can electronically be carried out and for controlling the method that can electronically carry out pressure controlled vehicle brake apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3009324A (en) * 1960-01-28 1961-11-21 American Brake Shoe Co Fluid pressure operated hydraulic brake apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1361381A2 (en) * 2002-05-08 2003-11-12 Ross Operating Valve Company High pressure valve
EP1361381A3 (en) * 2002-05-08 2004-03-03 Ross Operating Valve Company High pressure valve
CN109070860A (en) * 2016-04-21 2018-12-21 罗伯特·博世有限公司 Pressure controlled vehicle brake apparatus can electronically be carried out and for controlling the method that can electronically carry out pressure controlled vehicle brake apparatus
CN109070860B (en) * 2016-04-21 2021-07-23 罗伯特·博世有限公司 Electronically pressure-adjustable vehicle brake system and method for controlling an electronically pressure-adjustable vehicle brake system

Also Published As

Publication number Publication date
FR1125359A (en) 1956-10-30

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