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Title: Synchronous temperature rate control for refrigeration with reduced energy consumption

Methods of operation for refrigerator appliance configurations with a controller, a condenser, at least one evaporator, a compressor, and two refrigeration compartments. The configuration may be equipped with a variable-speed or variable-capacity compressor, variable speed evaporator or compartment fans, a damper, and/or a dual-temperature evaporator with a valve system to control flow of refrigerant through one or more pressure reduction devices. The methods may include synchronizing alternating cycles of cooling each compartment to a temperature approximately equal to the compartment set point temperature by operation of the compressor, fans, damper and/or valve system. The methods may also include controlling the cooling rate in one or both compartments. Refrigeration compartment cooling may begin at an interval before or after when the freezer compartment reaches its lower threshold temperature. Freezer compartment cooling may begin at an interval before or after when the freezer compartment reaches its upper threshold temperature.
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Issue Date:
OSTI Identifier:
Whirlpool Corporation DOEEE
Patent Number(s):
Application Number:
Contract Number:
Resource Relation:
Patent File Date: 2015 Sep 10
Research Org:
Whirlpool Corporation, Benton Harbor, MI (United States)
Sponsoring Org:
Country of Publication:
United States

Other works cited in this record:

Variable capacity binary refrigerant refrigeration apparatus
patent, November 1983

Sequentially controlled single evaporator refrigerator
patent, November 1984

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

Control algorithm for dual temperature evaporator system
patent, December 1994

Temperature control method of refrigerator
patent, June 1996

Temperature control system for a multi compartment refrigerator
patent, May 1999

Freezer-equipped refrigerator
patent, November 1999

Apparatus for supplying cold air in refrigerators
patent, November 1999

Method of supplying cold air in refrigerators
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Method for selection of refrigerator control parameters
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Refrigerator freezer with two evaporators for respective refrigerating and freezing compartments
patent, February 2001

Refrigerator having a cooler mounted in each of a refrigerator compartment and a freezer compartment
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patent, June 2002

Flexible sealed system and fan control algorithm
patent, December 2003

Variable speed refrigeration system
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Refrigerator system and software architecture
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patent-application, September 2004

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Cooling Storage Cabinet and Method of Operating Thereof
patent-application, September 2009

Cooling storage and method of operating the same
patent-application, April 2010

Cooling storage and method of operating the same
patent-application, May 2010

Variable position air damper for a refrigerator
patent-application, July 2011

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