Dynamically balanced Gifford-McMahon refrigerator cold head

Details Dynamically balanced Gifford-McMahon refrigerator cold head Dynamically balanced Gifford-McMahon refrigerator cold head

1991-02-19

1992-04-14

Capossela, Ronald C.

Refrigeration

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

60520, F25B 900

Patent

active

051036479

ABSTRACT:
A Gifford-McMahon cryorefrigerator is modified by using opposed sub-displacers which are sinusoidally reciprocated in opposite directions with respect to one another such that the force vectors of inertia created by the movement of the sub-displacers are cancelled out. The cancelling out of the force vectors should substantiallly reduce adverse affects associated with displacer banging.

REFERENCES:
patent: 4143520 (1979-03-01), Zimmerman
patent: 4277947 (1981-07-01), Durenec
patent: 4277948 (1981-07-01), Horn et al.
patent: 4366676 (1983-01-01), Wheatley et al.
patent: 4397156 (1983-08-01), Heisig et al.
patent: 4430863 (1984-02-01), Longsworth
patent: 4922722 (1990-05-01), Kazumoto et al.

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