Johnson Controls Technology Company

Steven J Estes

Steven Trent Sommer

John C Hansen

Gregory Keith Beaverson

Andrew Michael Welch

Ivan Jadric

Jeb William Schreiber

Koman B Nambiar

A method for cooling a compressor motor () and a cooling circuit utilizing refrigerant that originates in the condenser () to cool a motor () and electromagnetic bearings (). The motor drives a compressor (), while the electromagnetic bearings support the motor rotor () during operation of the compressor. Liquid refrigerant from the condenser is expanded into a two-phase mixture, passed over the stator, expanded a second time, passed over the bearings and between the stator and rotor, before being returned to an evaporator ().

Motor cooling method for a compressor

A cooling system for a motor powering a compressor in a vapor compression system includes a housing and a cavity within the housing. A first fluid circuit has a first connection to receive a refrigerant into the cavity, and a second connection to deliver refrigerant from the cavity to a heat exchanger for a heat transfer relationship with a heat-generating component.

Motor cooling applications

A cooling system for a motor powering a compressor in a vapor compression system includes a housing enclosing the motor and a cavity located within the housing. A fluid circuit circulates a cooling fluid in the motor, and includes a first connection in the housing to receive cooling fluid and a second connection in the housing to remove cooling fluid. The fluid circuit includes a passageway for cooling fluid positioned in an internal chamber formed in a motor shaft.

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York, PA, United States of America

Steven J Estes