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:
Sep. 24, 2002
Filed:
Aug. 25, 2000
Applicant:
Inventors:
Hidetoshi Kageyama, Iwata, JP;
Nobuaki Karaki, Iwata, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 3/300 ;
U.S. Cl.
CPC ...
F02B 3/300 ;
Abstract
A compact supercharged internal combustion engine, wherein the supercharger is mounted above the twin overhead cam cylinder head of the engine but is readily detachable from it. The drive for the pumping elements of the supercharger including counter rotating shafts to which balance masses are added so as to assist in engine balancing. In addition to supplying compressed air to the combustion chambers of the engine for combustion, the supercharger also supplies air to an air injection system that cooperates with the exhaust system for reducing the emissions of undesirable pollutants to the atmosphere.