Piston seal device for reciprocating compressor

Details Piston seal device for reciprocating compressor Piston seal device for reciprocating compressor

1985-08-27

1987-06-30

Look, Edward K.

Expansible chamber devices

Piston

Side wall portion includes peripheral axially extending...

92249, 277169, 277171, 277DIG6, F16J 900

Patent

active

046761438

ABSTRACT:
A piston seal device for a reciprocating compressor, having a piston slidably mounted in a cylinder bore and having a circumferential groove, and a resilient piston ring fitted in the circumferential groove of the piston and sealingly engageable with the cylinder bore. The circumferential groove includes a centrally recessed bottom wall for causing the piston ring to be resiliently and arcuately deformed to have a pair of opposite outer corner edges sealingly engageable with the cylinder bore. The piston sealing device thus provides a great sealing force both at the discharge stage and the intake stage, thereby improving the efficiency and lubrication of the compressor.

REFERENCES:
patent: 1177010 (1916-03-01), Brunskill
patent: 1773749 (1930-08-01), Petersen
patent: 2187880 (1940-01-01), Kaysing
patent: 2893800 (1959-07-01), Schmidt et al.
patent: 3291497 (1966-12-01), Cross
patent: 3678809 (1972-07-01), Doutt

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