Oil cooled hermetic compressor used for helium service

Details Oil cooled hermetic compressor used for helium service Oil cooled hermetic compressor used for helium service

1986-09-12

1987-09-15

Bennet, Henry A.

Refrigeration

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

62 84, 62468, F25B 900

Patent

active

046937366

ABSTRACT:
In a cryogenic refrigeration system, a hermetic refrigerant compressor pump is used to compress helium. The compressor pump 10 is oil cooled by a heat exchange jacket 46 surrounding a compressor housing 28. Oil from an oil sump 30 within the compressor housing 28 is pumped through an external heat exchanger 44 where it is cooled, to the heat exchange jacket 46. From the heat exchange jacket 46, oil is recycled back to the oil sump 30. Pressure developed by the compressor pump 10 is used to pump the oil.

REFERENCES:
patent: 2963886 (1960-12-01), Palmatier
patent: 4419865 (1983-12-01), Szymaszek
patent: 4516916 (1985-05-01), English et al.
patent: 4558573 (1985-12-01), La Monica

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