Power plants – Pressure fluid source and motor – Pulsator
Patent
1983-06-10
1989-04-11
Hershkovitz, Abraham
Power plants
Pressure fluid source and motor
Pulsator
13750518, B60T 1300
Patent
active
048194336
ABSTRACT:
The hydraulic brake system having at least one wheel brake is adapted to be pressurized by a master brake cylinder actuated by a hydraulic power booster. An auxiliary pressure is adjustable in a pressure chamber of the hydraulic power booster by means of a brake valve. Interposed between an auxiliary pressure source and the brake valve is a pressure-reducing valve that is controllable by the auxiliary pressure and contains a valve controlling a passageway, the valve being acted upon by the auxiliary pressure to open the passageway. To simplify the construction of the pressure-reducing valve, the closure member of the valve is exposed to the reduced pressure in the pressure-reducing valve such that a force related to the valve seat surface will be exerted on the closure member in the closing direction of the passageway of the pressure-reducing valve.
REFERENCES:
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patent: 2997851 (1961-08-01), Trubert et al.
patent: 4034566 (1977-07-01), Suketomo et al.
patent: 4215715 (1980-08-01), Raskin
patent: 4244278 (1981-01-01), Belart et al.
patent: 4254623 (1981-03-01), Dauvergne
patent: 4279271 (1981-07-01), Neff
patent: 4444440 (1984-04-01), Farr
patent: 4482190 (1984-11-01), Burgdorf et al.
Hershkovitz Abraham
IT&T Industries, Inc.
Raden James B.
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