Plunger for compressors

Details Plunger for compressors Plunger for compressors

1977-10-11

1980-06-24

Cohen, Irwin C.

Expansible chamber devices

Piston

With spring means for biasing side wall portion radially

92182, 92257, F16J 102, F16J 106

Patent

active

042089530

ABSTRACT:
A plunger comprises a carrier and a hollow sleeve portion extending around a portion of the carrier. The sleeve portion rests between longitudinally spaced radial shoulders of the carrier. A portion of the carrier disposed within the sleeve is radially spaced from the sleeve to form a gap, which gap is pressurized to counteract pressures acting exteriorly on the sleeve portion. The gap can communicate with the environment surrounding the plunger so that external pressures pressurize the gap before or during plunger operation. The carrier may comprise a body portion and a cover portion which are connected by means of extensions which project through the sleeve portion. The sleeve portion can be formed of a material having a smaller coefficient of expansion than the body portion or cover portion.

REFERENCES:
patent: 1731147 (1929-10-01), Moyer et al.
patent: 1764458 (1930-06-01), McLean
patent: 2413347 (1946-12-01), Hamilton et al.
patent: 2874012 (1959-02-01), Stern
patent: 3187839 (1965-06-01), Prather
patent: 3335643 (1967-08-01), Wentworth
patent: 3471079 (1969-10-01), Myers
patent: 3490344 (1970-01-01), Archer
patent: 4044655 (1977-08-01), Kennicott

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