Gas bearing piston assembly

Details Gas bearing piston assembly Gas bearing piston assembly

1981-01-08

1984-06-26

Feinberg, Craig R.

Internal-combustion engines

Valved piston

Charge passes from crankcase through valve in piston

92183, 92199, 123 47AB, 123193P, F01L 1100

Patent

active

044559747

ABSTRACT:
A gas bearing supported piston assembly (2) for an internal combustion engine including a piston body (14, 14') and a segmented piston ring (3) arranged to expand to compensate for wear. A piston supporting gas layer (27) is formed between the cylinder walls (8) and the exterior surface of each piston ring segment (32) by means of a plurality of restricted flow passages (40) formed in each segment (32) and extending between the inner and outer surfaces of the segment (32). In one embodiment, gas under pressure is supplied to the ring segments (32) through a single annular cavity (36) formed in piston body (14). In another embodiment, gas under pressure is supplied to the ring segments (32) through a plurality of corresponding holes (70) in piston body (14').

REFERENCES:
patent: Re20256 (1937-01-01), Wuerfel
patent: 665506 (1901-01-01), Carlson
patent: 1754625 (1930-04-01), Henning et al.
patent: 1911736 (1933-05-01), Wilkening
patent: 2468980 (1949-05-01), Huber
patent: 2983098 (1961-05-01), Bush
patent: 3001609 (1961-09-01), Macks
patent: 3335643 (1967-08-01), Wentworth
patent: 3969004 (1976-07-01), Schliemann

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