Abstract: An air atomizing throttle body is formed with a single point fuel injector located above the inlet to the throttle body induction passage, the throttle body having an inverted cup-shaped sleeve valve, the lower edges of which cooperate with a stationary conical valve seat projecting radially into the induction passage to define a variable area flow path, and including idle speed air vents to equalize pressures on opposite sides of the sleeve valve to minimize the force needed to move the valve by a pressure operated bellows incorporated into the valve, the valve members forming a labryinthian type air/fuel flow path for the shearing of the fuel globules to atomize the same.

Abstract: A motor vehicle throttle valve positioner consisting of an elongated screw means moving the throttle valve and providing two ranges of movement, one being an engine idle speed mode of operation to maintain the engine at the correct idling speed level as determined by a microprocessor or similar electronic control, the other being a speed control mode of operation wherein a chosen engine off-idle speed level is maintained, and a failsafe operation returning the throttle valve to the idle speed range in the event of electrical failure or termination of the speed control mode of operation.