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:
Aug. 23, 2011
Filed:
Feb. 12, 2008
Shiro Honma, Kobe, JP;
Jun Tanimoto, Kobe, JP;
Takashi Maruyama, Akashi, JP;
Yuji Takasugi, Kobe, JP;
Tatsuya Yoshida, Kobe, JP;
Shiro Honma, Kobe, JP;
Jun Tanimoto, Kobe, JP;
Takashi Maruyama, Akashi, JP;
Yuji Takasugi, Kobe, JP;
Tatsuya Yoshida, Kobe, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Hyogo, JP;
Abstract
An exhaust system includes a tubular inner shell for passing therethrough exhaust gases from a combustion engine, and a tubular outer shell enclosing the tubular inner shell and cooperating therewith to define a sound silencing chamber into which the exhaust gases are introduced. The tubular inner shell forms an inner peripheral wall of the sound silencing chamber, and an upstream portion of the inner peripheral wall is formed with a perforated wall area having a plurality of communicating perforations for communicating between an interior of the tubular inner shell and the sound silencing chamber, and a downstream portion of the inner peripheral wall has a non-perforated wall area having no communicating perforation defined therein.