Solenoid operated device to control curb idle position of throttle valve

A solenoid actuated device in combination with an internal combustion engine having a carburetor with a throttle valve and a throttle arm thereon, and an ignition system for the engine electrically connected to the device, said device controlling the curb idle position of the throttle valve and permitting the throttle valve to close below the curb idle position upon deactivation of the ignition system, and comprising:

• an outer housing having a winding therein electrically connected to said ignition system, an armature mounted for movement between energized and deenergized positions and having a central bore therethrough, a shaft mounted within said central bore for longitudinal movement with the armature and having one extending end in electrical contact with the throttle arm when the throttle valve is at curb idle position and below curb idle position, and being out of electrical contact with said arm when the throttle valve is opened above the curb idle position, said shaft being extended in the energized position of said armature to move the throttle arm to the curb idle position and being retracted in the deenergized position of the armature to move the throttle arm below the curb idle position, said one end of the shaft being electrically insulated from said armature and housing and connected to a source of electrical energy for grounding said source when the shaft is in electrical contact with the throttle arm thereby to permit the energizing of other selective electrically actuated devices.