Carrier Corporation

Peter J Pileski

Bruce A Fraser

Paul J Flanigan

David M Rockwell

Amit Vaidya

A compressor () has a male rotor (), a female rotor (), and a housing (). The housing has a first bore () and a second bore () respectively accommodating portions of the male rotor and the female rotor. The housing has an inlet (), an outlet (), an economizer port () along at least one of the first bore and the second bore, and an external port () communicating with the economizer port. The housing has a chamber () between the economizer port and the external port having a volume of at least 0.8 liter.

Screw compressor economizer plenum for pulsation reduction

A slide valve for use in a screw compressor comprises a main body portion configured for sliding in a pressure pocket of a screw compressor to regulate output of a working matter through screw rotors of the compressor. The main body of the slide valve includes a plurality of walls that define an enclosed interior cavity. The slide valve also includes a bore extending into a wall of the main body such that working matter discharged from the screw rotors has access to the enclosed interior cavity. The bore is sized to dampen pressure pulsations in the discharged working matter as the discharged working matter flows through the bore.

Screw compressor pulsation damper

A compressor () has a housing () having first () and second () members. A motor () within the housing () is coupled to one or more working elements () to drive the one or more working elements () to compress a fluid. A number of electrical terminals () are each mounted in an associated aperture () in the second housing member () and electrically connected to the motor ().

Compressor terminal plate

Various embodiments of the invention provide a screw compressor for compressing a refrigerant in a refrigeration system. The screw compressor includes a rotor case, which accommodates a primary helical rotor that is intermeshed with at least one secondary helical rotor, to compress the refrigerant in the rotor case. The rotor case also includes a slide valve supporting member that is fixed on an inner wall of the rotor case. Moreover, a slide valve, located in the rotor case, slides axially on the slide valve supporting member. The slide valve controls the volume of refrigerant during compression. The slide valve is fitted with at least one internal pressure relief valve, to relieve internal pressure in the screw compressor.

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Manlius, NY, United States of America

Peter J Pileski