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:
Apr. 05, 2005
Filed:
May. 13, 2004
Yukihiro Shibata, Aichi-ken, JP;
Toru Sakurai, Aichi-ken, JP;
Yukihiro Shibata, Aichi-ken, JP;
Toru Sakurai, Aichi-ken, JP;
Aisan Kogyo Kabushiki Kaisha, Aichen-ken, JP;
Abstract
An intake valve device includes a throttle body defining a bore for the flow of intake air. A throttle shaft is rotatably mounted to the throttle body. A slit is formed in the throttle shaft in a diametrical direction and extends throughout the diameter of the throttle shaft. The slit has opposing end walls along the rotational axis of the throttle shaft. A throttle valve is inserted into the slit of the throttle shaft and fixed in position relative to the throttle shaft. Possible intake air leakage channels are defined between the outer periphery of the throttle valve and the end walls of the slit. At least one restriction portion is formed on the throttle valve so as to extend into at least one of the possible leakage channels in order to narrow the possible leakage channel and reduce or inhibit the leakage of intake air.