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:
Nov. 10, 2009
Filed:
Aug. 19, 2005
Motohiro Shimizu, Saitama, JP;
Toshimitsu Takaishi, Saitama, JP;
Hiroyuki Eguchi, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A cogeneration system that is operated in system connection is disconnected from the system and operated independently at a power failure of the system. A power generatordriven by an engine E is connected to a system. A water-cooling devicerecovers exhaust heat of the engine E. When an operating switchis switched, to its independent operation mode for an independent operation apart from the system, the upper limit of the target rotation speed Ntgt of an electronic governoris increased over that at system connection operation, thereby the engine speed can be increased, and the maximum output point of the power generatoris increased for operation. When a power failure of the systemis detected by a power failure detecting unit, an operation mode judging unitoutputs a judgment result similar to that at the moment when the independent operation mode is instructed and increases the upper limit of the target engine speed Ntgt, and turns off a connection switchto disconnect the system connection.