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. 07, 2000
Filed:
Oct. 26, 1998
Unisia Jecs Corporation, Atsugi, JP;
Abstract
For controlling a throttle valve of an internal combustion engine, there is provided a control valve control device. The device includes a throttle body; a pivot shaft rotatably held by the throttle body and extending across a throttle chamber of the throttle body, the throttle valve being secured to the throttle shaft to pivot therewith; an electric actuator mounted to the throttle body to produce a power to drive the pivot shaft; and a reduction gear mechanism arranged between the electric actuator and the pivot shaft to reduce a speed of an actuation motion applied to the pivot shaft from the actuator. The throttle valve control device further includes a cam lever constituting a part of the reduction gear mechanism, the cam lever being secured to the pivot shaft to pivot therewith and having a cam surface; a cam follower structure pivotally connected to the throttle body and constantly contacting the cam surface to be pivoted; a spring for biasing the cam follower structure in a direction to press a part of the cam follower structure against the cam surface; and a close position adjuster mounted on the cam lever to adjust the close position of the throttle valve. When the cam lever is pivoted in a direction to close the throttle valve, the close position adjuster is brought into abutment with the part of the cam follower structure thereby to stop further pivoting of the cam lever.