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. 24, 2010
Filed:
Nov. 09, 2004
Hisato Tanaka, Wako, JP;
Tsuneo Endoh, Wako, JP;
Yasuhisa Tateoka, Wako, JP;
Hiroaki Hara, Wako, JP;
Hisato Tanaka, Wako, JP;
Tsuneo Endoh, Wako, JP;
Yasuhisa Tateoka, Wako, JP;
Hiroaki Hara, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
An intake/exhaust valve seal structure for an internal combustion engine is disclosed. A sealing surface is formed by a valve seat surface in a ceiling of a combustion chamber and a valve face surface provided on an intake/exhaust valve. The sealing surface lies on a first conical surface having an axis of the intake/exhaust valve as its rotation axis and includes a line of intersection of the first conical surface with an inner wall face of the ceiling of the combustion chamber. A method for manufacturing the intake/exhaust valve is also disclosed.