Control apparatus for a throttle stop of an internal combustion engine
First Claim
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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.
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Abstract
The present invention relates to a control apparatus for a throttle stop. The control apparatus provides accurate and consistent throttle stop operation.
44 Citations
19 Claims
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1. A throttle stop apparatus to regulate the power of an internal combustion engine comprising:
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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.
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2. A throttle stop comprising:
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a throttle stop element configured and arranged to be moveable between a full open position and at least one flow restricting position to regulate the power of an engine by controlling the flow from an air-fuel metering device to the engine; an electric motor mounted to the throttle stop element, the motor configured to move the throttle stop element a characteristic amount upon receiving an electrical signal in a direction that is determined by the electrical signal such that the throttle stop element is moveable between the full open position and the at least one flow restricting position; and a controller configured to control operation of the motor and preprogrammed to provide different positions, different rates of movement, different directions of movement, and different durations of movement for the throttle stop element during the course of a race. - View Dependent Claims (3, 4, 5, 6, 7)
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8. A controllable throttle stop comprising:
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a mounting section constructed to engage a throttle linkage element; an electric motor mounted to the mounting section, the motor being configured to move upon receiving an electrical signal in a direction that is determined by the electrical signal; an extendable link extending away from the motor; the motor coupled to the extendable link to move the extendable link away from the mounting section in one direction and to move the extendable link toward the mounting section in another direction whereby the motor lengthens and shortens the throttle stop; and a controller configured to control operation of the motor and programmable to provide different positions, different rates of movement, different directions of movement, and different durations of movement for the extendable link during the course of a race. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A controllable throttle stop comprising:
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a baseplate constructed to be mounted between a fuel metering device and an intake manifold of an internal combustion engine, the baseplate having passages through which air and fuel flow from the fuel metering device into the internal combustion engine; throttle plates movably mounted to the baseplate to selectively interfere with flow through the passages; a throttle plate mechanism configured to engage the throttle plates to selectively move the throttle plates between a closed position that interferes with flow through the passages and an open position that permits at least substantially unimpeded flow through the passages; an electrical motor driven actuator operatively coupled to the throttle plate mechanism to move the throttle plates to a more open position in one direction and to a more closed position in another direction to thereby selectively position the throttle plates; and a controller configured to control operation of the actuator and programmable to include an operational curve that provides different positions, different rates of movement, different directions of movement, and different durations of movement for the throttle plates during the course of a race. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification