Carburetor throttle valve actuator
AssigneeFord Motor Company
InventorShunso F. Watanabe
Life of this patent
Estimating the term…
Abstract
An automotive type carburetor throttle valve actuator is automatically moved within two ranges to provide an idle speed control and a vehicle speed control; the moving mechanism including a compound planetary gear set operatively conditioned for a reduction drive to establish a slowly changing idle speed drive range, and conditioned for a direct drive to establish a faster changing vehicle speed level control range; a microprocessor sensing engine operating conditions for determining the operation of a reversible electric motor and a gear reaction member and clutching mechanism to determine the operating range as well as the speed level change.
Claims5
A motor vehicle throttle valve actuator for controlling the opening of the throttle valve in a first speed control range of movement between the idle speed and wide open throttle valve positions, and a second idle speed range of movement between an essentially closed throttle valve position and a fast idle throttle valve speed position;
- comprising,
- compound planetary gear drive means operatively coupled to said throttle valve for moving said valve through said ranges, holding means operably engagable with a member of the gear means to effect a reduction drive operation of the throttle valve in the second range, and clutching means for locking up the planetary gear drive means to effect operation of said throttle valve through said first range.
Dependencies are inferred from the claim text.