Throttle valve control apparatus

Details Throttle valve control apparatus Throttle valve control apparatus

1997-04-24

1998-11-03

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

123399, 123400, F02D 908

Patent

active

058294090

ABSTRACT:
When an accelerator drum of a throttle valve control apparatus is turned in a valve opening direction to open a throttle valve, an electric motor is energized to turn a rotatable shaft thereof through a predetermined angle, causing a valve shaft to turn the throttle valve in the valve opening direction. The angular movement of the throttle valve is transmitted from a valve shaft lever through a link to an intermediate lever, whose first engaging finger is angularly moved in the valve opening direction relatively to a second engaging finger of the accelerator drum. The throttle valve control apparatus allows the throttle valve to be controlled with an accelerator pedal and the electric motor. The throttle valve control apparatus is relatively simple in structure, can be designed with increased layout freedom, and can perform both a fail-safe function and a limping-home function.

REFERENCES:
patent: 4785782 (1988-11-01), Tanaka et al.
patent: 4848505 (1989-07-01), Yoshizawa et al.
patent: 5131364 (1992-07-01), Mann
patent: 5265572 (1993-11-01), Kadomukai et al.
patent: 5297521 (1994-03-01), Sasaki et al.
patent: 5297522 (1994-03-01), Buchl
patent: 5367997 (1994-11-01), Kawamura et al.
patent: 5664542 (1997-09-01), Kanazawa et al.
patent: 5685521 (1997-11-01), Yoshida et al.

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