Device for actuating butterfly throttle valve of an internal com

Details Device for actuating butterfly throttle valve of an internal com Device for actuating butterfly throttle valve of an internal com

1988-10-13

1989-11-07

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

123360, F02D 902, F15B 102

Patent

active

048784702

ABSTRACT:
A device for actuating a butterfly throttle valve of an internal combustion engine includes a hydraulic setting member for rotating a shaft of the throttle valve. The hydraulic setting member is driven by a branch flow of fuel delivered by a fuel pump and acting as pressure medium. The branch flow passes through a series of connection of adjustable throttles connected in a hydraulic bridge circuit. The throttles are adjusted by a regulating signal corresponding to the difference between an actual position signal delivered by a position sensor coupled to the throttle valve, and a desired position sensor coupled for example to a gas pedal of the motor vehicle.

REFERENCES:
patent: 2897906 (1959-08-01), Brueder
patent: 3724430 (1973-04-01), Adler
patent: 3822679 (1974-07-01), Hobo et al.
patent: 4235155 (1980-11-01), Shafer
patent: 4510905 (1985-04-01), Leiber

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