Vdo Adolf Schindling Ag

Andreas Radlinski

Harald Frey

Torsten Bellon

In order to control the air throughput through the intake pipe of an internal combustion engine, the power of which is controlled by displacement of a throttle valve, there is provided in the intake pipe in known manner a dome-shaped contour which follows the throttle valve over a part of the adjustment angle. Also, the cable pulley has a circular shape in a useful region of operation, but the pulley is fastened eccentrically on the throttle valve. In this way, there is obtained a sensitive displacement by electric motor of the throttle valve in the idling range on the one hand, and a very direct response of the throttle valve to a movement of the gas pedal on the other hand.

Device for controlling the power of an internal combustion engine

For the displacement of a throttle valve (1) which is rotatably mounted in the intake connection (2) of an internal combustion engine, there is provided a device with electromotive actuating drive, gearing and clutch (10) as well as electronic control device (11) with which the entire load range, in addition to the idle range, can be automatically controlled. In this connection, a coupling member (15) is provided between the pulley (8), which is mechanically coupled to the gas pedal (6), and a first lever (13) which is rigidly attached to the throttle-valve shaft (1a). Furthermore, the main return spring (3) acts directly on the pulley (8), the coupling member (15) is urged by a coupling spring (16) against the first lever (13) of the throttle-valve shaft (1a), and a third return spring (19) acts on the driven shaft (18) of the actuating drive (9)

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Oberursel, Germany

Andreas Radlinski