US Patent 7908878 Refrigerating apparatus

Patent 7908878 was granted and assigned to Daikin Industries, Ltd. on March, 2011 by the United States Patent and Trademark Office.

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Patent

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Current Assignee

Daikin Industries, Ltd.

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

79088780

Patent Inventor Names

Masakazu Okamoto0

Date of Patent

March 22, 2011

Patent Application Number

119192250

Date Filed

April 3, 2006

Patent Primary Examiner

Melvin Jones

Patent abstract

Refrigerant sent from a heat source side circuit (14) to utilization side circuits (11, 12, 13) is made to be single-phase liquid by using cooling means (36, 45) or a vapor-liquid separator (35). Variable-opening utilization side expansion valves (51, 52, 53) are provided in the utilization side circuits (11, 12, 13) so that an expansion process in a refrigeration cycle is performed also in the circuits.

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