Patent ID: 6032647
Filing Date: 2000-03-07
Classification: F02D,F05C

Abstract:
A throttle valve control device for controlling a throttle valve which pivots to assume a close position, an intermediate position and an open position, comprising:a throttle body having a throttle chamber formed therethrough;a pivot shaft rotatably held by said throttle body and extending across said throttle chamber, said throttle valve being secured to said throttle shaft to pivot therewith;an actuator mounted to said throttle body to produce a power to drive the pivot shaft;a reduction gear mechanism arranged between said actuator and said pivot shaft to reduce a speed of an actuation motion applied to the pivot shaft from said actuator;a cam lever constituting a part of said reduction gear mechanism, said cam lever being secured to said pivot shaft to pivot therewith and having a cam surface;a cam follower structure pivotally connected to said throttle body and constantly contacting said cam surface to be pivoted;biasing means for biasing said cam follower structure in a direction to press a part of said cam follower structure against said cam surface; anda close position adjuster mounted on said cam lever to adjust the close position of said throttle valve, said close position adjuster being brought into abutment with said part of said cam follower structure thereby to stop further pivoting of the cam lever when the cam lever is pivoted in a direction to close the throttle valve.