Piston assembly for stirling engine

Details Piston assembly for stirling engine Piston assembly for stirling engine

1997-07-14

1999-02-02

Nguyen, Hoang

Expansible chamber devices

Piston

Non-circular

92192, 92194, 92242, 92247, 60517, F16J 100, F01B 2910

Patent

active

058650911

ABSTRACT:
A piston assembly for a double-acting engine such as a double-acting Stirling engine. A pair of sealing rings located on opposite sides of a sealing washer are positioned between a base section and a dome section of a piston head. These sealing rings are alternatively urged into sealing engagement with the cylinder bore as the piston reciprocates. A single sealing ring design is also disclosed in which the sealing ring is urged into constant sealing engagement by positive pressure accumulated with an interior cavity in the piston head.

REFERENCES:
patent: 3442183 (1969-05-01), Howe et al.
patent: 4270440 (1981-06-01), Lewis, II
patent: 4452042 (1984-06-01), Lindskoug
patent: 4615261 (1986-10-01), Meijer
patent: 4669736 (1987-06-01), Meijer
patent: 4736586 (1988-04-01), Kawajiri et al.
patent: 4998460 (1991-03-01), Wolfs et al.
patent: 5056419 (1991-10-01), Watanabe et al.

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