F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
230/31, 230/39,
F25B 43/02 (2006.01) F04C 29/02 (2006.01) F25B 1/047 (2006.01)
Patent
CA 1233799
Title INTEGRAL SLIDE VALVE-OIL SEPARATOR APPARATUS IN A SCREW COMPRESSOR Inventor James C. Tischer Abstract The slide valve assembly by which the capacity of an oil- injected screw compressor is controlled includes a valve portion con- nected to a piston. The valve portion is located in the screw rotor housing while the valve actuating piston is located within a pressure housing interior of a centrifugal oil separator in what would otherwise be unused space. The rod connecting the valve portion and piston pene- trates the discharge port of the compressor. The piston is actuated and the compressor is loaded by directing separated oil from the oil sump in a sealed sump housing into the pressure chamber within the cen- trifugal oil separator. The oil separator is located within the sealed oil sump housing. Oil is vented from the pressure housing into a suc- tion area within the rotor housing to unload the compressor. Such oil is sucked into the working chamber of the compressor where it assists in the cooling, lubricating and sealing of compressor components.
521571
American Standard International Inc.
Fetherstonhaugh & Co.
Wabco-Standard Inc.
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