Cryogenic refrigerator having a convection system to cool a herm

Details Cryogenic refrigerator having a convection system to cool a herm Cryogenic refrigerator having a convection system to cool a herm

1987-05-27

1989-05-23

Capossela, Ronald C.

Refrigeration

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

62505, 92144, 165185, 310 64, 417366, F25B 900

Patent

active

048318280

ABSTRACT:
In accordance with the invention, a hermetic refrigerant compressor pump which is used to compress helium is cooled by fins which are press fitted to the compressor's housing. The compressor is further cooled by a heat exchanger which cools oil in an oil sump located within the compressor housing. Preferably, a fan is located between the fins and the heat exchanger to help cool the pump.

REFERENCES:
patent: 2426536 (1947-08-01), Vanderweil
patent: 2737370 (1963-03-01), Frisch et al.
patent: 3089016 (1963-05-01), Kelly
patent: 3143284 (1964-08-01), Lindsjo et al.
patent: 3300997 (1967-01-01), Kocher
patent: 3719051 (1973-03-01), Malaker
patent: 4103192 (1978-07-01), Wendt et al.
patent: 4192052 (1980-03-01), MacDonald
patent: 4244098 (1981-01-01), Barcus
patent: 4248050 (1981-02-01), Durenec
patent: 4253859 (1981-03-01), Naka
patent: 4433550 (1984-02-01), Durenec
patent: 4481777 (1984-11-01), Sarcia
patent: 4574591 (1986-03-01), Bertsch
Description of product of Grinnell Supply Sales Co. utilizing cooling fins.
Description of product of Young Radiator Co. utilizing cooling fins.
Description of product of Noranda Metal Industries utilizing cooling fins.
Description of product of Unifin International Div. utilizing cooling fins.

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