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:
May. 12, 2009
Filed:
Mar. 15, 2007
Hiroshi Yamaguchi, Kyoto, JP;
Katsumi Fujima, Tsukuba, JP;
Masatoshi Enomoto, Oyama, JP;
Noboru Sawada, Tokyo, JP;
Hiroshi Yamaguchi, Kyoto, JP;
Katsumi Fujima, Tsukuba, JP;
Masatoshi Enomoto, Oyama, JP;
Noboru Sawada, Tokyo, JP;
The Doshisha, , JP;
Mayekawa Mfg. Co. Ltd., , JP;
Showa Denko K.K., , JP;
Showa Tansan Co., Ltd., , JP;
Abstract
A Rankine cycle system has a condenser, a heat pump connected to the condenser, a heat collecting device connected to the heat pump, and an expansion turbine connected to the heat collecting device and the condenser. The heat pump includes an expansion tank or closed vessel, a refrigerant supply conduit connected to the lower part of the expansion tank and to the condenser, and a refrigerant discharge conduit connected to the upper part of the expansion tank. An open/close valve is installed in the refrigerant supply conduit. A pressure regulating valve installed in the refrigerant discharge pipe opens when a pressure reaches a specified value or higher. A temperature regulating device can heat the refrigerant in the expansion tank to produce a refrigerant vapor of saturated temperature or higher, which vapor can be introduced into the heat collecting device.