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:
Apr. 14, 2015
Filed:
Feb. 25, 2010
Kazuhiro Endoh, Kasumigaura, JP;
Tatsuo Fujii, Mito, JP;
Kazuhiro Endoh, Kasumigaura, JP;
Tatsuo Fujii, Mito, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A discharged warm/cold heat of a refrigerant circuit is effectively utilized in order to attain high energy efficiency. Appropriate operation control is executed when a hot-water supplying operation and an air cooling operation are simultaneously performed, whereby high energy efficiency is attained. When an air cooling operation by an air temperature adjusting refrigerant circuit and a hot-water supplying operation by a hot-water supplying refrigerant circuit are executed, the air temperature adjusting refrigerant circuit, and the hot-water supplying refrigerant circuit are controlled such that a target evaporation temperature of the hot-water supplying refrigerant circuit or a target condensation temperature of the air temperature adjusting refrigerant circuit is attained, the target evaporation temperature or the target condensation temperature being set based upon an air cooling capacity and an evaporation temperature of the air temperature adjusting refrigerant circuit and a hot-water supplying capacity and a condensation temperature of the hot-water supplying refrigerant circuit.