Back to results
US 5,293,855 AGranted
Electronic throttle valve drive unit
AssigneeNissan Motor Co., Ltd.
InventorHideo Nakamura
Life of this patent
Estimating the term…
Abstract
An electronic throttle valve drive unit comprises a return mechanism for returning two clutch plates of a first electromagnetic clutch interposed between an accelerator pedal and a throttle valve to a predetermined relative rotation angle position when the first electromagnetic clutch is returned to engagement from disengagement by cutoff of power supply.
Claims5
A drive unit for driving a throttle valve through an accelerator pedal and a motor, comprising:
- a first electromagnetic clutch interposed between the accelerator pedal and the throttle valve, said first electromagnetic clutch being in engagement when no power is supplied, said first electromagnetic clutch being in disengagement when power is supplied, said first electromagnetic clutch including first and second clutch plates;
- a second electromagnetic clutch interposed between the throttle valve and the motor, said second electromagnetic clutch being in disengagement when no power is supplied, said second electromagnetic clutch being in engagement when power is supplied;
- and
- means for returning said first and second clutch plates of said first electromagnetic clutch to a predetermined relative rotation angle position when said first electromagnetic clutch is returned to engagement from disengagement by cutoff of power supply of said first and second electromagnetic clutches.
1 more element
Dependencies are inferred from the claim text.