Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tomiharu Isogai0
Takuji Nakamura0
Date of Patent
December 16, 2008
Patent Application Number
11768238
Date Filed
June 26, 2007
Patent Primary Examiner
Patent abstract
An intake air control valve has a bore defining member and a butterfly-type valve member that includes a shaft and a valve body. The valve body has a pair of valve portions joined to the shaft and rotatable between a fully closed position and a fully opened position; Each of the valve portions has a central portion and opposite end portions along a direction of the rotational axis of the valve member. The thickness of each of the valve portions gradually increases from the central portion toward the end portions.
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