Rotary expansible chamber devices – Working member has planetary or planetating movement – Plural working members or chambers
Patent
1990-12-14
1991-12-24
Bertsch, Richard A.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Plural working members or chambers
418266, F04C 18344
Patent
active
050747690
ABSTRACT:
A rotary compressor includes a support member for supporting a revolution piston while preventing rotary movement thereof with respect to its axis, and at least two sliding blades provided in the revolution piston. Both blades are biased against a surrounding cylinder by a one-piece spring. The maximum volume of the chamber is larger than the conventional chamber due to reciprocal movement of the slidable blades. The blades are positioned or rest at almost the same position in the radial direction of the revolution piston. Therefore, any inertia which effects the spring due to the sliding blades is very small. Thus, the sliding blades press the cylinder with almost constant force which is predetermined by the spring, even if the revolution piston changes the rotational speed thereof.
REFERENCES:
patent: 2423507 (1947-07-01), Lawton
patent: 2732126 (1956-01-01), Smith
patent: 3620654 (1971-11-01), Allen
patent: 4086039 (1978-04-01), Ettridge
patent: 4253806 (1981-03-01), D'Amato
patent: 4692104 (1987-09-01), Hanson
Kazaoka Kenichi
Okazaki Hiroshi
Aisin Seiki Kabushiki Kaisha
Bertsch Richard A.
Cavanaugh David L.
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