Volkswagen Ag

Mahle International Gmbh

Ihi Charging Systems International Gmbh

Bosch Mahle Turbo Systems Gmbh Co. Kg

Schwing Gmbh

Reinhold Gracner

Daniel Dobernig

Tim Lowak

Eike Werstat

Alexander Schäffner

Martijn De Graaff

Torsten Jäckel

Jaroslav Kierat

David Klemen

Markus Hatzer

Martijn De Graaf

A method for mounting and setting an actuator of an exhaust gas turbocharger and a suitable electric actuating device are provided. The actuating device has an axially movable actuating rod which is connected to a coupling element which for its part is connected via a pivot pin to an actuation section of a bypass valve, the actuation section being configured as a lever arm. In order to set the desired closed position of the bypass valve during a predefined actuation of the actuating device, the coupling element is first connected to the actuating rod while still being displaceable. Before the fixing, the position of the actuating device which corresponds to the closed position is set by application of the corresponding voltage to the electric actuating device. Subsequently, a prestressing force is applied to the coupling element coaxially with respect to the actuating rod via a pneumatic actuator.

Method for mounting and setting an actuator of an exhaust gas turbocharger, and an actuator intended for a charging device

An actuating drive for a bi-directionally adjustable actuator for at least on of an exhaust gas recirculation device and an exhaust gas turbocharger. The actuating drive includes an electric motor; a toggle lever, which articulates with the actuator via a first toggle lever bearing; and a gear mechanism, connecting the electric motor with the toggle lever, wherein the gear mechanism includes a toothing element on an output side mounted in a pivot bearing, wherein the toggle lever is articulating mounted via a second toggle lever bearing, wherein in a starting state of the actuating drive is associated with a starting position of the actuator, and wherein an acute angle exists between a first straight line extending through the first toggle lever bearing and through the second toggle lever bearing, and a second straight line extending through the pivot bearing and through the second toggle lever bearing.

Actuating drive for bidirectional actuator

Growing community of inventors

Griffen, Austria

Reinhold Gracner