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. 12, 2005
Filed:
Mar. 31, 2003
Satoru Akimoto, Shizuoka, JP;
Hidenori Takahashi, Shizuoka, JP;
Shinichi Kajiya, Shizuoka, JP;
Makoto Yokokura, Shizuoka, JP;
Satoru Akimoto, Shizuoka, JP;
Hidenori Takahashi, Shizuoka, JP;
Shinichi Kajiya, Shizuoka, JP;
Makoto Yokokura, Shizuoka, JP;
Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka-Ken, JP;
Abstract
A power generator unit incorporates an engine and a generator driven by the engine. The generator incorporates a multi piece sound insulation cover that allows for efficient cooling of the various internal components. A plurality of cooling paths are created within the cover and air is drawn into and through the cover by two separate fans. An engine cooling fan draws in cooling air through a generally dedicated cooling air vent(s) to cool an electronic control(unit, an engine cylinder, and a muffler. A generator cooling fan draws in cooling air through an additional cooling air vent(s) to cool an engine crankcase and the generator. The insulation cover provides quiet operation and efficient cooling of the power generator.