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.
Patent No.:
Date of Patent:
Feb. 07, 2017
Filed:
Apr. 07, 2011
Hiroshi Maitani, Tokyo, JP;
Masashi Fujitsuka, Tokyo, JP;
Motohiko Kawagishi, Tokyo, JP;
Yoshihiro Takahashi, Tokyo, JP;
Hiroshi Maitani, Tokyo, JP;
Masashi Fujitsuka, Tokyo, JP;
Motohiko Kawagishi, Tokyo, JP;
Yoshihiro Takahashi, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A control apparatus for a heat pump hot water supply system of the indirect heating method is provided such that a change in heat transfer efficiency of a second heat exchanger is estimated by using either or both of a tank water temperature and a temperature of a second refrigerant flowing through a water circuit. When the heat transfer efficiency is determined to be high, an operation switching unit raises an output of a heat source device. When the heat transfer efficiency is determined to be low, the operation switching unit lowers the output of the heat source device.