Rotary expansible chamber devices – Miscellaneous
Patent
1987-06-11
1988-08-16
Freeh, William L.
Rotary expansible chamber devices
Miscellaneous
13751215, 137853, 291567A, F04C 2344, F16K 1514, B23P 1500
Patent
active
047640995
ABSTRACT:
A cylinder has at least one valve seating surface-forming portion which has an outer surface formed therein with at least one recess, the bottom surface of which serves as a valve seating surface. A discharge valve is arranged on the outer surface of the valve seating surface-forming portion to close or open outlet holes formed in respective ones of the valve seating surface at locations where the wall thickness of the cylinder is the minimum. The discharge valve has at least one elastic valve body having an arcuate cross section and disposed in tight contact with a corresponding one of the valve seating surface. The valve seating surface is arcuately concavely cured with almost the same radius of curvature as that of the valve body of the discharge valve.
REFERENCES:
patent: 1759798 (1930-05-01), Murphy
patent: 1999599 (1935-04-01), Smith
patent: 2174337 (1939-09-01), Welsmiller
patent: 4070895 (1978-01-01), Yamada
patent: 4127369 (1978-11-01), Eiermann
patent: 4149834 (1979-04-01), Eiermann
patent: 4199309 (1980-04-01), Connor
patent: 4305424 (1981-12-01), Wankel
patent: 4570585 (1986-02-01), Hayashi
patent: 4668172 (1987-05-01), Shibuya
Inomata Kenichi
Nakajima Nobuyuki
Okada Shigeru
Diesel Kiki Co. Ltd.
Freeh William L.
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