Rotary expansible chamber devices – With plural working fluid inlet or outlet passages
Patent
1979-10-25
1981-12-29
Vrablik, John J.
Rotary expansible chamber devices
With plural working fluid inlet or outlet passages
418 61A, 418 76, 418 77, 418 79, 418 83, 418 94, 418116, 418117, 418142, F01C 122, F01C 1904, F01C 1908, F01C 2104
Patent
active
043080022
ABSTRACT:
A Wankel-type engine has a housing with a chamber therein having parallel, axially spaced side surfaces joined by an end surface which has a semi-circular contour in an axially longitudinal plane. A rotor, eccentrically mounted on a shaft carried by the housing for rotation in the chamber, has a pair of side portions adjacent to the chamber side surfaces and a plurality of lobes, each having an end portion which has a semi-circular configuration corresponding to the semi-circular contour of the chamber end surface. Multi-layer, self-expanding seals engaging the chamber end surface are carried by each rotor end portion, and the rotor side portions carry seals engaging the chamber side surfaces. Lubrication is supplied to the seals. The semi-circular chamber end surface is provided on a separate member mounted between a pair of housing members, or alternatively is provided on complimentary portions of a pair of housing members.
REFERENCES:
patent: 1442828 (1923-01-01), Rotermund
patent: 3083699 (1963-04-01), Froede
patent: 3120921 (1964-02-01), Hovorka
patent: 3142440 (1964-07-01), Schagg
patent: 3253581 (1966-05-01), Nallinger
patent: 3448727 (1969-06-01), Kobayakawa
patent: 4058321 (1977-11-01), Gavrun et al.
Farley Joseph W.
Vrablik John J.
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