Piston rod seal

Details Piston rod seal Piston rod seal

1979-01-19

1981-01-27

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 15, F16J 1556

Patent

active

042471214

ABSTRACT:
Leakage of gas is prevented by an oil seal established as an oil reservoir surrounding a piston rod. The reservoir is limited by spring-influenced plastic rings arranged in a seal housing. The springs are located at the low gas pressure side of the seal. Oil is supplied to the piston rod surface at the low pressure side of the seal.

REFERENCES:
patent: 3810634 (1974-05-01), Hakansson
patent: 3848877 (1974-11-01), Bengtsson et al.
patent: 4083566 (1978-04-01), Bengtsson et al.
patent: 4146237 (1979-03-01), Bergman
patent: 4170363 (1979-10-01), Bergman

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