Device with orbiting valve having a seal piston

Details Device with orbiting valve having a seal piston Device with orbiting valve having a seal piston

1990-09-10

1992-08-04

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

1376252, 251176, F01C 110, F01C 1908, F16K 2500

Patent

active

051353695

ABSTRACT:
A closed center gerotor device wherein the sealing between the commutator for the device and the surrounding body is provided by a wave spring biased "O" ring sealed pressure operated piston.

REFERENCES:
patent: 2984223 (1961-05-01), Budzich
patent: 3289601 (1966-12-01), Compton
patent: 3572983 (1971-03-01), McDermott
patent: 4298318 (1981-11-01), Tsuchiya et al.
patent: 4480971 (1984-11-01), Swedberg
patent: 4976594 (1990-12-01), Bernstrom

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