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. 24, 2018

Filed:

Dec. 06, 2011
Applicants:

Shogo Tamaki, Tokyo, JP;

Makoto Saito, Tokyo, JP;

Fumitake Unezaki, Tokyo, JP;

Nobuaki Uehara, Tokyo, JP;

Inventors:

Shogo Tamaki, Tokyo, JP;

Makoto Saito, Tokyo, JP;

Fumitake Unezaki, Tokyo, JP;

Nobuaki Uehara, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24D 19/10 (2006.01); F24D 11/02 (2006.01); F24D 3/18 (2006.01); F24D 17/00 (2006.01); F24D 17/02 (2006.01);
U.S. Cl.
CPC ...
F24D 19/1072 (2013.01); F24D 3/18 (2013.01); F24D 11/0214 (2013.01); F24D 17/001 (2013.01); F24D 17/02 (2013.01); F24D 19/1039 (2013.01); F24D 19/1054 (2013.01); F25B 2600/13 (2013.01); Y02B 30/52 (2013.01); Y02B 30/745 (2013.01);
Abstract

A heat pump heating and hot-water system includes a water heating heat exchanger for heating water by heat exchange with a heating medium heated by a heat pump unit, an indoor heating unit, a heating circulation circuit for selectively pumping the heating medium to either of the water heating heat exchanger and the indoor heating unit using a heating medium pump, and a hot-water accumulating circuit that sends water in a hot-water storage tank to the water heating heat exchanger and returns water having passed through the water heating heat exchanger to the hot-water storage tank using a water pump. The volumetric flow rate of the heating medium pumped to the water heating heat exchanger by the heating medium pump is higher than or equal to the volumetric flow rate of the water pumped to the water heating heat exchanger by the water pump.


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