Rotary expansible chamber devices – With mechanical sealing – Axially movable end wall or end wall portion
Patent
1984-04-20
1985-09-03
Vrablik, John J.
Rotary expansible chamber devices
With mechanical sealing
Axially movable end wall or end wall portion
418259, 418269, F04C 1800, F04C 2900
Patent
active
045389764
ABSTRACT:
A partition member is fitted within a casing at a location between an end wall of a pump housing accommodated within the casing and an opposed inner end face of the casing and cooperates with the one end wall to define a suction chamber therebetween. A first discharge pressure chamber is defined between an outer peripheral surface of the pump housing and an inner peripheral surface of the casing, and a second discharge pressure chamber between the above opposed inner end face of the casing and the partition member, respectively. The two discharge pressure chambers communicate with each other via passages formed through the partition member and the above end wall of the pump housing. A suction port and a discharge port are formed in the casing at the same axial side thereof, the former opening in the suction chamber in a substantially direct manner.
REFERENCES:
patent: 2099193 (1937-11-01), Brightwell
patent: 3404634 (1968-10-01), Connelly
patent: 4408964 (1983-10-01), Mochizuki et al.
patent: 4419058 (1983-12-01), Franklin, Jr. et al.
Diesel Kiki Co. Ltd.
Olds, III Theodore W.
Vrablik John J.
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