Apparatus for spark advance throttle control
AssigneeOutboard Marine Corporation
InventorLe Roy T. Wood
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a throttle control assembly for positioning the throttle valve of an internal combustion engine of the type including a cam movable in accordance with desired engine speed changes, the throttle control assembly comprising a mechanism coupled to the throttle valve and including a member coupled to the cam for opening the throttle valve in response to movement of the member in a first direction and for closing the throttle valve in response to movement of the member in a second direction, and a relative movement mechanism for preventing continued opening of the throttle valve beyond a predetermined position despite continued movement of the member in the first direction.
Claims21
An engine apparatus comprising an internal combustion engine, a cam movable in response to desired engine speed changes, a throttle valve movable between a closed position and an open position for regulating the flow of combustion air to said engine, and a throttle control assembly responsive to movement of said cam for controlling the position of said throttle valve in accordance with said desired engine speed changes, said throttle control assembly comprising a cam follower for engaging the cam, a cam follower slide supporting said cam follower, a cam follower slide ramp having means on said slide ramp for supporting said cam follower slide in position for engagement of said cam follower with said cam and for movement of said cam follower slide along a predetermined path in response to movement of said cam follower incident to movement of said cam, a linkage assembly coupling said cam follower slide with said throttle valve so as to vary the position of said throttle valve in accordance with the position of said cam follower slide along said predetermined path, a throttle stop for preventing movement of said cam follower slide in one direction along said predetermined path beyond a position corresponding to said open position of said throttle valve, and means for providing relative movement between said cam follower and said cam follower slide when said cam follower slide is in said position and said cam causes continued movement in said one direction of said cam follower, whereby movement of said throttle valve beyond said open position is prevented despite continued movement of said cam in accordance with further desired change in engine speed.
A throttle control assembly for positioning the throttle valve of an internal combustion engine of the type including a cam movable in accordance with desired engine speed changes, said throttle control assembly comprising means coupled to the throttle valve and including a member adapted for coupling to said cam for opening the throttle valve in response to movement of said member in a first direction and for closing the throttle valve in response to movement of said member in a second direction, and lost movement means for preventing continued opening of the throttle valve beyond a predetermined position despite continued movement of said member in said first direction.
A throttle control assembly for positioning the throttle valve of an internal combustion engine of the type including a cam movable in accordance with desired engine speed changes, said throttle control assembly comprising means adapted for coupling to the throttle valve and including apparatus having first and second members and being adapted for coupling to said cam for opening the throttle valve in response to movement of said apparatus in a first direction and for closing the throttle valve in response to movement of said apparatus in a second direction, and relative movement means for preventing continued movement of said apparatus in said first direction beyond a predetermined position despite continued movement of said first member in said first direction.
A throttle control assembly for positioning the throttle valve of an internal combustion engine of the type having a mechanism for advancing and retarding ignition timing in accordance with desired engine speed changes and including a cam movable in accordance with the desired engine speed changes, said throttle control comprising means including a cam follower slide and a cam follower carried by said cam follower slide for translating movement of the cam into movement of said cam follower slide, linkage means coupling said cam follower slide and adapted to be coupled with the throttle valve to vary the position of the throttle valve in accordance with position of said cam follower slide, stop means for preventing movement of said cam follower slide beyond a predetermined stop position, and relative movement means for permitting relative movement between said cam follower and said cam follower slide when said cam follower slide is displaced to said stop position by said stop means and the cam urges further displacement of said cam follower such that movement of the linkage means beyond a desired limit position is prevented despite continued movement of the cam.
An engine apparatus comprising an internal combustion engine, a cam movable in response to desired engine speed changes, a throttle valve movable between a closed position and an open position for regulating the flow of combustion air to said engine, and a throttle control assembly responsive to movement of said cam for controlling the position of said throttle valve in accordance with desired engine speed changes, said throttle control assembly comprising a cam follower for engaging the cam, a support having means thereon for supporting said cam follower in position for engagement with said cam and for movement of said cam follower along a predetermined linear path in response to movement of said cam, and a linkage assembly coupling said cam follower with said throttle valve so as to vary the position of said throttle valve in accordance with the position of said cam follower.
A throttle control assembly for positioning the throttle valve of an internal combustion engine of the type including a cam movable in accordance with desired engine speed changes, said control assembly comprising a cam follower for engaging the cam, a support having means thereon for supporting said cam follower in position for engagement of said cam follower with said cam and for movement of said cam follower along a predetermined linear path in response to movement of said cam, and a linkage assembly coupling said cam follower with said throttle valve so as to vary the position of said throttle valve in accordance with the position of said cam follower.
Dependencies are inferred from the claim text.