Oil pressure maintenance for screw compressor

Details Oil pressure maintenance for screw compressor Oil pressure maintenance for screw compressor

1991-05-21

1992-08-04

Makay, Albert J.

Refrigeration

Automatic control

Refrigeration producer

62470, 621964, 418DIG1, F25B 3100

Patent

active

051348560

ABSTRACT:
A pressurized supply of oil for lubrication and other purposes for a helical screw compressor is automatically and continuously maintained in an oil separator in the compressor discharge line by a check valve assembly which is controlled by the pressure differential between the compressor inlet and the condenser, a bypass around the valve's control element permitting equalization of pressure on its opposite sides to permit closing by a biasing element.

REFERENCES:
patent: 2128388 (1938-08-01), Williams et al.
patent: 2155051 (1939-04-01), Kagi
patent: 2338486 (1944-01-01), Bixler
patent: 2418853 (1947-04-01), Shoemaker
patent: 3827255 (1974-08-01), Kish
patent: 3850009 (1974-11-01), Villadsen
patent: 4180986 (1980-01-01), Shaw
patent: 4653286 (1987-03-01), Huenniger
patent: 4749166 (1988-06-01), Huenniger
patent: 4916914 (1990-04-01), Short

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