Reciprocating engine

Details Reciprocating engine Reciprocating engine

2004-03-02

2008-12-16

McMahon, M. (Department: 3747)

Internal-combustion engines

Particular piston and enclosing cylinder construction

Piston

C123S193400

Reexamination Certificate

active

07464683

ABSTRACT:
A reciprocating engine comprises: a piston ring; a piston ring which defines an annular gas chamber in cooperation with the piston ring and which is adjacent to the piston ring such that a pressure-receiving area of a side surface of a piston in the annular gas chamber becomes greater on a thrust side than on a counter-thrust side of the piston; and gas passages for allowing the annular gas chamber to communicate with the combustion chamber.

REFERENCES:
patent: 5050485 (1991-09-01), Hoult
patent: 5054375 (1991-10-01), Kawabata et al.
patent: 5265565 (1993-11-01), Bando
patent: 62-026346 (1987-02-01), None
patent: 04-159441 (1992-06-01), None
patent: 04-321757 (1992-11-01), None
patent: 04-347353 (1992-12-01), None
patent: 04-362258 (1992-12-01), None
patent: 05-005459 (1993-01-01), None
patent: 05-033865 (1993-02-01), None
patent: 10-132076 (1998-05-01), None
patent: 2000-509460 (2000-07-01), None
International Search Report for PCT/JP2004/002536 dated Jun. 29, 2004.

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