Piston and multilayer piston ring set

Details Piston and multilayer piston ring set Piston and multilayer piston ring set

1989-01-03

1991-01-22

Look, Edward K.

Expansible chamber devices

Piston

With spring means for biasing side wall portion radially

277197, 277199, 277220, 277222, 2988807, 29888076, F16J 906, F16J 916, F16J 924

Patent

active

049861689

ABSTRACT:
Compression piston ring for internal combustion or compressor cylinder and piston comprising double layer of segmented ring sectors having free form circumferential curvature matching the cylinder bore. The double layers are adapted to effectively seal or minimize bypass with resilient means provided for maintaining ring cylinder engagement under light radial pressure.

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patent: 3625526 (1971-12-01), McCormick
patent: 4570945 (1986-02-01), Hayashi
patent: 4615531 (1986-10-01), Green

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