Rotary expansible chamber devices – Working member has planetary or planetating movement – Plural working members or chambers
Patent
1986-05-01
1988-05-03
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Plural working members or chambers
418133, 418186, F03C 208, F04C 210
Patent
active
047416815
ABSTRACT:
A rotary fluid pressure device of the type including a gerotor gear set (15) including a ring member (19) and a star (23). Adjacent the gerotor set is an endcap member (17) having an end surface (41) in engagement with the adjacent end surface (42) of the star. The disclosed invention relates to valve-in-star type valving whereby both the manifold valving action and the commutating valving action occur at the interface of the surfaces (41) and (42). Specifically, fluid is communicated from the inlet port (37) through a pressure chamber (43) into a manifold zone (57) defined by the star, then through a passage (65) into fluid port (61). The ports (61) are in commutating fluid communication with a plurality of stationary valve passages (51) defined by the endcap member (17), each of which is in communication with one of the gerotor volume chambers.
REFERENCES:
patent: 3233524 (1966-02-01), Charlson
patent: 3270682 (1966-09-01), Charlson
patent: 3825376 (1974-07-01), Petersen et al.
patent: 3894821 (1975-07-01), White, Jr.
patent: 4411606 (1983-10-01), Miller
patent: 4474544 (1984-10-01), White, Jr.
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