Power plants – Pressure fluid source and motor – Pulsator
Patent
1978-12-26
1982-02-02
Hershkovitz, Abraham
Power plants
Pressure fluid source and motor
Pulsator
91460, B60T 1320
Patent
active
043133037
ABSTRACT:
A brake force servo-device, especially for motor vehicles, with a control piston, selectively actuatable preferably by a brake pedal, which cooperates with a connecting valve connected with a pressure medium source and which is operable to displace a flow medium out of its cylinder space for the actuation of the connecting valve; a working piston is thereby actuated by the pressure controlled by the connecting valve, whereby the control piston is constructed as one-piece control piston having an annular step and is sealed off, on the one hand, within the area of its entry into the brake force servo-housing and, on the other, in proximity of its end face which projects into a working pressure space; the control piston thereby abuts at the working piston present in the working pressure space while the connecting valve is actuated by the flow medium displaced by the annular-shaped step of the control piston out of the annular space which is formed between its two bearing places.
REFERENCES:
patent: 2976686 (1961-03-01), Stelzer
patent: 3831491 (1974-08-01), Thomas
patent: 3915066 (1975-10-01), Thomas
patent: 3928970 (1975-12-01), Farr
patent: 3967538 (1976-07-01), Thomas
patent: 3988967 (1976-11-01), Orzel
patent: 4034566 (1977-07-01), Suketomo
Daimler-Benz Aktiengesellschaft
Hershkovitz Abraham
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