Patent ID: 7032877
Filing Date: 2006-04-25
Classification: F02M,Y10T

Abstract:
1. An actuator for reversibly moving a valve flap of a valve, comprising: a drive shaft to which the valve flap is connected; a toothed quadrant mounted to be rotatable about a first axis of rotation of the drive shaft, wherein the toothed quadrant is not fixedly connected to the drive shaft; a further quadrant larger than the toothed quadrant and arranged in parallel with the toothed quadrant and fixedly connected to the drive shaft; a two-armed lever mounted between the toothed quadrant and the further quadrant to be rotatable about a second axis of rotation of a pin which is arranged in parallel with the first axis of rotation on a side of the further quadrant that faces the toothed quadrant, wherein the lever does not touch the drive shaft, wherein the first axis of rotation is further away from a toothed ring of the toothed quadrant than the second axis of rotation and wherein a first lever arm, which faces the first axis of rotation when the valve is in a closed position, of the two-armed lever is larger than a distance between the second axis of rotation and an edge of the further quadrant which, together with one edge of the toothed quadrant, rests flush against a first stop when the valve is in the closed position; wherein the toothed quadrant has a cutout and a projection is arranged on the two-armed lever at an end, which faces away from the second axis of rotation, of a second lever arm of the two-armed lever and is directed into the cutout, and wherein the further quadrant has a third stop for the second toothed quadrant on an edge which faces a second stop that is associable with an open position of the valve.