Patent ID: 6360718
Filing Date: 2002-03-26
Classification: F02D

Abstract:
A load adjustment apparatus for a final control element which determines the power of an internal combustion engine, is designed, in particular, as a throttle valve and is arranged on an actuating shaft, in which arrangement the actuating shaft can be driven so as to be pivotable between a minimum-load position and a full-load position by an actuating part, connected thereto in a rotationally fixed position, by a reversible actuating gear, having a preloaded return spring which is formed as a torsion spring and acts on the actuating shaft in minimum-load direction, and having an emergency-running spring by which the actuating shaft can be moved in the full-load direction as far as an emergency-running position, wherein the return spring and the emergency-running spring are formed by a single torsion spring (18), a first end thereof being connected to the actuating shaft (2) and a second end (12) thereof is moved against force of the torsion spring (18) between the emergency-running position and the minimum-load position by a minimum-load gear (20) coupled to the actuating gear (5), wherein, between the emergency-running position and the full-load position, the second end (12) of the torsion spring (18) rests against a stop (13) and, between the emergency-running position and the minimum-load position, is moved away from the stop (13).