Oil cooled piston rings

Details Oil cooled piston rings Oil cooled piston rings

1975-06-02

1977-05-31

Cohen, Irwin C.

Expansible chamber devices

Piston

With ported chamber in piston part for circulating heat...

277 22, F01P 310

Patent

active

040261972

ABSTRACT:
An improved reciprocating engine wherein the pistons are provided with hollow compression rings having a fluid inlet and a fluid outlet and an elongated fluid flow path extending therebetween. A path is established through various parts of the engine including the piston for directing a coolant, usually oil, through the inlet to the interior of the piston ring to cool the ring during engine operation.

REFERENCES:
patent: 522459 (1894-07-01), Ellis
patent: 2386117 (1945-10-01), Hvid
patent: 2554234 (1951-05-01), Baudry et al.
patent: 2832618 (1958-04-01), Knoll et al.
patent: 3204617 (1965-09-01), Hulbert
patent: 3272092 (1966-09-01), Vielmo et al.
patent: 3296943 (1967-01-01), Rosman
patent: 3761102 (1973-09-01), Nicholson
patent: 3843138 (1974-10-01), Cobb

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