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:
Feb. 19, 2008
Filed:
Dec. 11, 2006
Tetsuya Arai, Saitama, JP;
Hiroshi Moriyama, Saitama, JP;
Takashi Suzuki, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A carburetor automatic control system in an engine includes, a temperature-sensitive operating device for operating a choke valve so that the choke valve is opened with a temperature increase of the engine and a governor for opening and closing a throttle valve to maintain a preset rotational speed of the engine. The governor device includes, a stepping motor opening and closing the throttle valve over a range from an idling opening degree to a fully opening degree, and an electronic control unit driving the stepping motor so that the rotational speed of the engine is maintained the preset speed. A relief mechanism is interposed between the choke valve and the temperature-sensitive operating device, the relief mechanism opening the choke valve in response to an intake vacuum pressure within the intake passage when the engine is in a cold state and the choke valve is in a fully closed state.