The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 25, 2017

Filed:

Oct. 04, 2011
Applicants:

Shogo Tamaki, Tokyo, JP;

Makoto Saito, Tokyo, JP;

Ryo Oya, Tokyo, JP;

Inventors:

Shogo Tamaki, Tokyo, JP;

Makoto Saito, Tokyo, JP;

Ryo Oya, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 27/00 (2006.01); F25B 13/00 (2006.01); F25B 1/00 (2006.01); F25B 39/02 (2006.01); F25B 29/00 (2006.01);
U.S. Cl.
CPC ...
F25B 29/003 (2013.01); F25B 13/00 (2013.01); F25B 2313/003 (2013.01); F25B 2313/021 (2013.01); F25B 2313/0231 (2013.01); F25B 2313/0233 (2013.01); F25B 2313/02741 (2013.01); F25B 2313/0314 (2013.01); F25B 2313/0315 (2013.01); F25B 2341/066 (2013.01); F25B 2600/0261 (2013.01); F25B 2700/1931 (2013.01); F25B 2700/21152 (2013.01); F25B 2700/21161 (2013.01); F25B 2700/21163 (2013.01);
Abstract

The volume ratio of a hot-water-supply-side liquid extension pipe to a water heat exchanger is set to be equal to or more than the minimum volume ratio, which is the volume ratio of the hot-water-supply-side liquid extension pipe to the water heat exchanger when the required refrigerant amount during a cooling and hot water supply simultaneous operation in which an indoor-side heat exchanger serves as an evaporator, the water heat exchanger serves as a condenser, cooling energy is supplied from the indoor-side heat exchanger, and heating energy is supplied from the water heat exchanger is equal to the required refrigerant amount during a heating operation in which a heat-source-side heat exchanger serves as an evaporator, the indoor-side heat exchanger serves as a condenser, and heating energy is supplied from the indoor-side heat exchanger.


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