Pressure-regulating device for a hydraulic circuit

Details Pressure-regulating device for a hydraulic circuit Pressure-regulating device for a hydraulic circuit

1994-03-28

1994-10-25

Oberleitner, Robert J.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

303 10, B60T 1318

Patent

active

053583167

ABSTRACT:
The invention relates to a pressure-regulating device for a hydraulic circuit, especially for a brake circuit of a motor vehicle, comprising at least one source of fluid under pressure (10) connected to a reservoir of fluid under low pressure (16) and, in at least one subcircuit (I, II), a second source of fluid under pressure (50) and two pressure receivers (20, 22). According to the invention, a proportional solenoid valve (24, 26) is associated with each pressure receiver (20, 22) and is connected to the source of fluid under pressure (10) and to the second source of fluid under pressure (50), and a differential pressure/vacuum valve (100) closes, at rest, communication between the source of fluid under pressure (10) and the supply of the second source of fluid under pressure (50), this communication being opened when the second source of fluid under pressure is put into operation.

REFERENCES:
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patent: 5018797 (1991-05-01), Takata
patent: 5042886 (1991-08-01), Sato
patent: 5106167 (1992-04-01), Matsuda
patent: 5152586 (1992-10-01), Burgdorf
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patent: 5174637 (1992-12-01), Kervagoret
patent: 5186093 (1993-02-01), Kervagoret
patent: 5186525 (1993-02-01), Sato et al.
patent: 5191827 (1993-03-01), Kervagoret
patent: 5234030 (1993-08-01), Kervagoret et al.

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