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. 11, 2012
Filed:
Nov. 25, 2009
Takeshi Inaba, Saitama, JP;
Makoto Yazaki, Saitama, JP;
Makoto Yonezawa, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
An outboard motor S has an upstream intake silencer with an upstream expansion chamber, and a downstream intake silencer disposed under the upstream intake silencer. The upstream expansion chamber has a lower wall of a stepped shape including a raised part overlapping the downstream intake silencer in a plane and a lowered part without overlapping with the downstream intake silencer in a plane and at a level lower than that of the raised part. An upstream outlet passage of the upstream intake silencer is formed in the raised part. The downstream intake silencer has a stepped upper wall having a raised part, and a lowered part underlying the lower wall of the upstream expansion chamber in a plane and extending at a level lower than that of the raised part.