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:
Sep. 15, 2009
Filed:
Jul. 14, 2008
Hiromichi Tsugami, Chiyoda-ku, JP;
Tatsuro Nagahori, Chiyoda-ku, JP;
Teruhiko Moriguchi, Chiyoda-ku, JP;
Shuzo Isozumi, Chiyoda-ku, JP;
Hiromichi Tsugami, Chiyoda-ku, JP;
Tatsuro Nagahori, Chiyoda-ku, JP;
Teruhiko Moriguchi, Chiyoda-ku, JP;
Shuzo Isozumi, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
An electronically-controlled throttle body includes a throttle valve having a valve disc, fixed on a valve shaft rotatably supported in a body inside which an air-intake passage is formed, for varying an opening area of the air-intake passage; a reduction gear mechanism connected to the valve shaft of the throttle valve; and a motor connected to the reduction gear mechanism; rotational drive power from the motor is transmitted to the valve shaft via the reduction gear mechanism, and the opening area of the air-intake passage is varied by rotatably moving the valve disc. The reduction gear mechanism includes a planetary gear mechanism and a spur gear reduction gear mechanism, rotational drive power from the motor is decelerated by the planetary mechanism, and the decelerated rotational drive power is further decelerated by the spur gear reduction gear mechanism, and then transmitted to the valve shaft.