Motors: expansible chamber type – Working member position feedback to motive fluid control – Follower type
Patent
1975-05-29
1976-07-06
Halvosa, George E. A.
Motors: expansible chamber type
Working member position feedback to motive fluid control
Follower type
60553, 91431, 303 10, F15B 910
Patent
active
039675360
ABSTRACT:
A power braking apparatus having a housing with a cavity therein through which a fluid under pressure is continually flowing. A piston separates the cavity into an inlet chamber and an outlet chamber. The piston has a passageway for connecting the inlet chamber from the outlet chamber. A valve in the passageway is adapted to regulate the flow of fluid from the inlet chamber to the outlet chamber. A disc located in the stem of the valve is resiliently biased against a head on the stem. One side of the disc is connected to the inlet chamber and the other is connected to the outlet chamber. An actuation input moves the valve toward a seat to restrict the flow of fluid between the inlet chamber and the outlet chamber and establish a pressure differential therebetween. This pressure differential will move the piston to provide an output force. When the pressure differential reaches a predetermined value, the resiliently biased disc on the stem will move away from the head to prevent the complete interruption of flow between the inlet chamber and the outlet chamber.
REFERENCES:
patent: 3050944 (1962-08-01), Schwartz et al.
patent: 3148592 (1964-09-01), Schultz et al.
patent: 3289547 (1966-12-01), Kytta
patent: 3603209 (1971-09-01), MacDuff et al.
patent: 3707112 (1972-12-01), Ewald
patent: 3845693 (1974-11-01), Meyers
patent: 3935709 (1976-02-01), Mathues et al.
Antonis William N.
Butler Douglas C.
Halvosa George E. A.
McCormick Jr. Leo H.
The Bendix Corporation
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