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Title: Refrigeration arrangement and methods for reducing charge migration

A refrigerator appliance including a refrigerant circuit between a condenser, an evaporator, and a compressor that includes two conduits and pressure reducing devices arranged in parallel between the evaporator and the condenser. The appliance also includes a valve system to direct refrigerant through one, both or none of the conduits and pressure reducing devices, and a heat exchanging member in thermal contact with either one pressure reducing device, or one conduit between the pressure reducing device and the valve system.
Issue Date:
OSTI Identifier:
Whirlpool Corporation DOEEE
Patent Number(s):
Application Number:
Contract Number:
Resource Relation:
Patent File Date: 2012 Feb 21
Research Org:
Whirlpool Corporation, Benton Harbor, MI (United States)
Sponsoring Org:
Country of Publication:
United States

Other works cited in this record:

Control Of Refrigerant Migration To Compressor During Shutdown
patent, March 1973

Refrigerant mass flow control at low ambient temperatures
patent, August 1976

Refrigeration system having auxiliary cooling for control of coolant flow
patent, November 1986

Multi-temperature evaporator refrigerator system with variable speed compressor
patent, August 1993

Energy efficient insulation system for refrigerator/freezer
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Fuzzy logic apparatus control
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Method for sequentially operating refrigeration system with multiple evaporators
patent, December 1993

Method of starting and running an internal combustion engine connected to a refrigerant compressor
patent, July 1994

Control algorithm for dual temperature evaporator system
patent, December 1994

Multi-temperature evaporator refrigeration system with variable speed compressor
patent, January 1995

Methods and apparatus for operating a refrigeration system characterized by controlling maximum operating pressure
patent, March 1995

Methods and apparatus for operating a refrigeration system
patent, May 1995

Dual evaporator refrigerator with non-simultaneous evaporator
patent, November 1995

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patent, December 1995

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Hybrid dehumidication system
patent, April 2006

patent, November 2008

Method of controlling compressor and controller
patent, November 2008

Combined refrigerant compressor and secondary liquid coolant pump
patent, July 2011

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