Patent ID: 7487758
Filing Date: 2009-02-10
Classification: F02D

Abstract:
1. A throttle stop apparatus to regulate the power of an internal combustion engine comprising: a body mounted in a flow path between an air-fuel metering device and intake valves of the engine; at least a first plate and a second plate located within the body and moveable between a full open position and at least one flow restricting position to selectively regulate the power of the engine by controlling flow from the air-fuel metering device to the intake valves of the engine, each of the first and second plates having an opening with a configuration and dimension sufficient to create substantially no restriction to the flow in the full open position; an electric motor driven actuator coupled to the first and second plates to move at least one plate relative to another to provide full alignment of the openings in the full open position at wide open throttle conditions of the engine and to provide at least partial restriction to the flow at the at least one flow restricting position; and a controller configured to control operation of the actuator and preprogrammable to include an operational curve that provides different positions, different rates of movement, different directions of movement, and different durations of movement for the first and second plates during the course of a race.