Rolling piston type expansion machine

Details Rolling piston type expansion machine Rolling piston type expansion machine

1995-09-27

1997-04-01

Freay, Charles G.

Rotary expansible chamber devices

Working member has planetary or planetating movement

With relatively movable partition member

418 67, 418188, F01C 102

Patent

active

056160194

ABSTRACT:
A rolling piston type expansion machine eliminates the need for an open-close valve mechanism and smoothens the timing of inflow of high-pressure gas. The machine includes a cylinder having a discharge port and a roller freely gyratable or orbital in the cylinder. A freely movable blade supported in the cylinder has its tip in contact with the circumferential surface of the roller to form an expansion chamber. A gas passage is freely rotatably supported by a main bearing member and a secondary bearing member. The gas passage is formed in a main shaft having a crank shaft portion that gyrates or orbits the roller. An inlet port is provided along a shaft center of the main shaft. An inflow timing control portion controls inflow timing of the suction gas toward the expansion chamber via the inlet port of the gas passage.

REFERENCES:
patent: 1923291 (1933-08-01), Zimmerer
patent: 3269646 (1966-08-01), August
patent: 5322424 (1994-06-01), Fujio

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