Gas lubricated piston ring assembly

Details Gas lubricated piston ring assembly Gas lubricated piston ring assembly

1985-06-10

1987-07-21

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277103, 277165, 277215, F16J 908, F16J 912

Patent

active

046813268

ABSTRACT:
A piston ring assembly wherein a piston member operating within a cylinder is lubricated by means of gas rather than oil films or solid lubricants. One ring (located near the lower end of piston) or two rings (one located near the lower end and the other near the top end of piston) trap gas between the piston and the cylinder wall to form a gas bearing area. The rings are designed to permit gas flow in one direction into the gas bearing area.

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patent: 4324407 (1982-04-01), Upham et al.
patent: 4462601 (1984-07-01), Skoog

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