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:
Dec. 24, 1991
Filed:
Jul. 17, 1990
Junkichi Amano, Iwata, JP;
Masashi Murakami, Iwata, JP;
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Abstract
A number of embodiments of compact high efficiency induction systems for an internal combustion engine. In each embodiment, the induction system includes a first pipe section that extends from the respective intake passage of the engine and which terminates in a downwardly turned right angle section. A U shaped pipe section is interconnected at one end to this right angle section and its other end is served by a plenum chamber that is integrally formed with the first pipe section. In some embodiments, the plenum chamber lies at least in part over the first pipe section and in other embodiments it is forwardly of it. In some embodiments, the U shaped pipe section is detachably connected to the plenum chamber, first pipe section assembly so as to permit attachment of different length sections for tuning for different engines.