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US 4,727,840 AGranted
Throttle valve control device
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsMinoru Nishida, Hideaki Katashiba
Life of this patent
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Abstract
A throttle valve control device comprises: a valve shaft for operating a throttle valve; a differential gear device having first and second drive gears, for driving the valve shaft; first and second electronic control actuators for rotating the first and second drive gear, respectively; and a sensor for detecting the degree of opening of the throttle valve, so that the operation of the throttle valve is controlled by the electronic control actuators while the degree of opening of the throttle valve is being detected.
Claims2
A throttle valve control device comprising:
- a valve shaft for operating a throttle valve adapted to vary the output of an engine;
- a differential gear device for driving said valve shaft, said differential gear device having first and second drive gears;
- first and second electronic control actuators for rotating said first and second drive gears of said differential gear device, respectively;
- and
- an opening degree sensor for detecting a degree of opening of said throttle valve.
2 more elements
Dependencies are inferred from the claim text.