Cryogenic refrigerator

Details Cryogenic refrigerator Cryogenic refrigerator

1991-10-17

1993-07-06

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With classifying or separating of material

51313, B02C 1700

Patent

active

052246574

ABSTRACT:
A cryogenic refrigerator comprising a closed cylinder provided with an inlet and an outlet for introducing and discharging a coolant gas into and out of the cylinder, a displacer slidably housed in the closed cylinder and housing a cooling member therein and having a passage through which the coolant gas flows, a device coaxially arranged in and along the passage of the displacer in which the cooling member is housed to divide the passage into outer and inner ones, a device for reciprocating the displacer in the cylinder, and a device for repeating the process of introducing the high pressure coolant gas into the cylinder through the inlet and discharging it out of the cylinder, synchronizing with the reciprocating displacer.

REFERENCES:
patent: 2591083 (1952-04-01), Maier
patent: 4221342 (1980-09-01), Tadema et al.
patent: 4366676 (1983-01-01), Wheatley et al.
patent: 4825660 (1989-05-01), Okumura
"A New Low-Temperature Gas Expansion Cycle", Part 1 by McMahon and Gifford, W. E., Advances in Cryogenic Eng. vol. 5, pp. 354-367, (1960).
"The Gifford-McMahon Cycle", by Gifford, W. E., Advances in Cryogenic Eng., vol. II, pp. 152-159, (1966).

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