Cooling apparatus

Details Cooling apparatus Cooling apparatus

1992-10-22

1994-04-05

Bennet, Henry A.

Refrigeration

Storage of solidified or liquified gas

Including cryostat

62 512, F25B 1902

Patent

active

052994252

ABSTRACT:
In a cooling apparatus for cooling an object by means of expanding a pressurized gas which is precooled below its inversion temperature, the pressurized, precooled gas is passed through a depressurization outlet and thereby expanded in a manner such that a gas jet exits from the depressurization outlet and is directed towards a surface of the object to be cooled. This surface has a central impingement area which is impinged upon by the gas jet and which is surrounded by a plurality of spiral-shaped outwardly extending ribs. The heat transfer is thereby improved. The gas, which is in the saturated condition, forms a vortex and, as a result, droplets are separated from the gas. This enables utilizing the heat of vaporization of such droplets.

REFERENCES:
patent: 3256712 (1966-06-01), Makowski
patent: 3372556 (1968-03-01), Waldman
patent: 3782129 (1974-01-01), Peterson
patent: 4126017 (1978-11-01), Bytniewski et al.
patent: 4781033 (1988-11-01), Steyert et al.
patent: 4819451 (1989-04-01), Hingst
patent: 4838041 (1989-06-01), Bellows et al.
patent: 5077465 (1991-12-01), Wagner et al.
patent: 5077979 (1992-01-01), Skertic et al.
patent: 5150579 (1992-09-01), Hingst

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