Stirling cycle engine having shaft seal means

Details Stirling cycle engine having shaft seal means Stirling cycle engine having shaft seal means

1983-07-28

1984-11-20

Husar, Stephen F.

Power plants

Motor operated by expansion and/or contraction of a unit of...

Unit of mass is a gas which is heated or cooled in one of a...

277 3, 277 15, F02G 100, F16J 1556

Patent

active

044831412

ABSTRACT:
A stirling cycle engine including a working piston defining a working chamber, a crankshaft located in a crankchamber, a connecting rod connecting the working chamber with the crankshaft, the connecting rod being passed through intermediate members. A gas seal structure is provided in the intermediate members around the connecting rod, the gas seal structure including a first oil chamber and a second oil chamber, the second oil chamber being located closer to the crankchamber than the first oil chamber, a resilient sealing ring disposed between the first and second oil chambers and having an outer surface tapered toward the crankchamber to reduce diameter thereof, a spring for biasing the sealing ring toward the crankchamber so that the outer surface of the sealing ring is urged to an opposing surface formed in one of the intermediate members. The first oil chamber is subjected to a pressure proximity to a minimum pressure produced in the working chamber, whereas the second oil chamber to the atmospheric pressure.

REFERENCES:
patent: 3667349 (1972-06-01), Siebert et al.
patent: 3848877 (1974-11-01), Bengtsson et al.
patent: 4146237 (1979-03-01), Bergman
patent: 4247121 (1981-01-01), Bergman
patent: 4428584 (1984-01-01), Shapiro

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