Refrigeration – Gas compression – heat regeneration and expansion – e.g.,...
Patent
1984-03-23
1985-08-13
Wayner, William E.
Refrigeration
Gas compression, heat regeneration and expansion, e.g.,...
60520, F25B 900
Patent
active
045341761
ABSTRACT:
The disclosure is a dual controlled linear resonance cryogenic cooler and comprised of a remote cold finger and a compressor, both driven by linear motors. A motor control means is used with the linear motors to drive both motors with a phase delay of the cold finger motor from that of the compressor motor such that the compressor linear motor alternately drives a piston to produce alternating pressure waves in a light cooling gas in working relation with a regenerator-displacer in the remote cold finger and the cold finger linear motor has a delayed phase relationship with the compressor linear motor. The use of linear motors which are slightly out of phase with each other selectively provides flat top and bottom dead center with constant linear increases and decreases therebetween for the compressor piston to follow and to eliminate the normal side forces of the piston that cause excessive wear.
REFERENCES:
patent: 3991586 (1976-11-01), Acord
patent: 4090858 (1978-05-01), Hanson
patent: 4397155 (1983-08-01), Davey
patent: 4403478 (1983-09-01), Robbins
patent: 4417448 (1983-11-01), Horn et al.
Dunmire Howard L.
Horn Stuart B.
Wright Richard A.
Harwell Max L.
Lane Anthony T.
Lee Milton W.
The United States of America as represented by the Secretary of
Wayner William E.
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