Pneumatically controlled split cycle cooler

Details Pneumatically controlled split cycle cooler Pneumatically controlled split cycle cooler

1983-03-21

1985-07-02

Capossela, Ronald C.

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

60520, F25B 900

Patent

active

045260087

ABSTRACT:
A pneumatically controlled split cycle cooler utilizes a dual piston compressor in conjunction with a remotely positioned head, the dual pistons are angularly spaced to provide in phase and out of phase pressure pulses for the head; and the head includes a pneumatic piston having an upwardly extending stem to which is attached a displacer/regenerator, a coldfinger, and a pair of pressure volumes spaced above and below the piston by seals and a pneumatic dampening volume between the seals, said pressure volumes operatively connected to the dual pistons for adding and subtracting their pressures in a complementary manner for proper timing and location of the displacer/regenerator and said pneumatic dampening volume operative to provide a pneumatic dampening of the piston to prevent the displacer/regenerator from striking the ends of the cooler and creating audible noise and microphonic inputs to a load to be cooled.

REFERENCES:
patent: 3523427 (1970-08-01), Simpson
patent: 3765187 (1973-10-01), Horn
patent: 3793846 (1974-02-01), Dehne
patent: 3991586 (1976-11-01), Acord
patent: 4206609 (1980-06-01), Durenec

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