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:
Mar. 01, 2011
Filed:
Jan. 09, 2007
Takashi Bessho, Obu, JP;
Takashi Bessho, Obu, JP;
Aisan Kogyo Kabushiki Kaisha, Obu-shi, Aichi-ken, JP;
Abstract
A butterfly valve-type throttle valveincludes a valve shaftextending across an intake air passageof an internal combustion engine, and a butterfly-type valve bodyfor adjusting a flow rate of an intake air flowing through the intake air passageby rotating in unison with the valve shaft. The valve bodyis constituted by two split members, and is configured such that the split membersare coupled to each other by a welding, which is a coupling that uses no screw, and such that an axial holefor fitting with the valve shaftis formed through the coupling. A gap closing memberis provided on a circumferential edge portion of the valve bodyfor closing a gap between the valve bodypositioned at a fully closed position and a passage wall surfaceof the intake air passage.