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:
Feb. 04, 2014
Filed:
Jun. 21, 2010
Keisuke Kawakita, Osaka, JP;
Toshinobu Fujisawa, Osaka, JP;
Tatsuya Kawano, Osaka, JP;
Masaaki Ono, Osaka, JP;
Keisuke Kawakita, Osaka, JP;
Toshinobu Fujisawa, Osaka, JP;
Tatsuya Kawano, Osaka, JP;
Masaaki Ono, Osaka, JP;
Yanmar Co., Ltd., Osaka-shi, JP;
Abstract
According to the present invention, even in the case of addition of a transformer for using an engine system with an AC power supply different from the expected voltage of an electrical device, there is substantially no change in the thermal balance in a package due to the presence or absence of the transformer. In the present invention, an engineand an electrical device for driving the engine system are housed in a package. In order for a transformerwhose primary side is an AC power supply and whose secondary side is the expected voltage of the electrical device for driving the engine system to be housed in the package, an intake port, an exhaust port, and a ventilation fan for cooling the transformer are provided in a ventilation path that is independent from other devices.