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:
Sep. 12, 2006
Filed:
Jul. 02, 2002
Osamu Kuwabara, Gunma, JP;
Hiroshi Mukaiyama, Gunma, JP;
Masahiro Kobayashi, Gunma, JP;
Ichiro Kamimura, Gunma, JP;
Hirokazu Izaki, Tochigi, JP;
Toshikazu Ishihara, San Jose, CA (US);
Osamu Kuwabara, Gunma, JP;
Hiroshi Mukaiyama, Gunma, JP;
Masahiro Kobayashi, Gunma, JP;
Ichiro Kamimura, Gunma, JP;
Hirokazu Izaki, Tochigi, JP;
Toshikazu Ishihara, San Jose, CA (US);
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
A heat pump apparatus that having a refrigerating cycle including a compressor, a gas cooler, a pressure reducing device and an evaporator and is designed so that water can be heated by the gas cooler. A refrigerant such as COor the like working in a supercritical area is filled and used at a high-pressure side in the refrigerating cycle and a radiator is equipped between the exit of the gas cooler and the pressure reducing device. The refrigerant temperature at the exit of the radiator is kept at a substantially fixed temperature irrespective of the temperature of hot water to the gas cooler.