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:
Jul. 31, 2007
Filed:
Jun. 17, 2004
Shigeru Hisanaga, Kariya, JP;
Yasushi Yamanaka, Nakashima-gun, JP;
Kenji Tsukahara, Anjo, JP;
Kazuhide Uchida, Hamamatsu, JP;
Shigeru Hisanaga, Kariya, JP;
Yasushi Yamanaka, Nakashima-gun, JP;
Kenji Tsukahara, Anjo, JP;
Kazuhide Uchida, Hamamatsu, JP;
DENSO Corporation, Kariya, JP;
Nippon Soken, Inc., Nishio, JP;
Abstract
A fluid machine according to the present invention has an expansion device for collecting waste heat from an internal combustion engine and converting the collected heat energy into mechanical rotational force, an electric rotating device selectively operating as an electric power generator and as an electric motor, and a pump device for pressurizing refrigerant for Rankine cycle, wherein those components are operatively connected with each other by a single rotating shaft. When starting up Rankine cycle, the electric rotating device is operated as the electric motor, so that the pump device is driven to pressurize and pump out high pressure refrigerant. Once the expansion device starts its operation, the electric rotating device is rotated by the expansion device and therefore the operational mode of the electric rotating device is switched over to the power generating mode. The expansion device will be operated at its maximum efficiency in relation to the heat energy inputted into the Rankine cycle, by controlling the power generation at the electric rotating device.