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:
Nov. 21, 2023

Filed:

Feb. 18, 2022
Applicant:

Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;

Inventors:

Kentaro Yamamoto, Tokyo, JP;

Masahiko Takano, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 43/02 (2006.01); F24H 1/20 (2022.01); F04B 39/06 (2006.01); F04C 29/04 (2006.01); F04B 41/00 (2006.01); F04B 53/08 (2006.01);
U.S. Cl.
CPC ...
F24H 1/208 (2013.01); F04B 39/06 (2013.01); F04B 41/00 (2013.01); F04B 53/08 (2013.01); F04C 29/04 (2013.01);
Abstract

A waste-heat recovery system includes a waste-heat-recovery heat a tank, a circulation circuit, a circulation pump, and a control device that is configured to obtain the temperature of the heat medium flowing through a heat medium outlet piping of the circulation circuit and the temperature of the water stored in the tank. The control device stops the circulation pump or reduces the rotational frequency thereof in a case where the temperature of the heat medium flowing through the heat medium outlet piping is lower, or lower by a predetermined temperature or more, than the temperature of the water.


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