Control surface e.g. rudder, operating mechanism for airplane, has gearing placed downstream of hydraulic motor so that drive shaft of motor drives input shaft of gearing, and output shaft coincides with rotational axis of rudder

摘要

The operating mechanism has a toothed gearing (2) including an input shaft and an output shaft. The gearing is placed downstream of a hydraulic drive motor (1), so that required torque output for a control surface such as rudder (12), is built up. A drive shaft of the motor drives the input shaft of the gearing, and the output shaft coincides with a rotational axis (3) of the rudder. The motor is supplied with hydraulic energy via a hydraulic tube (9). The mechanism can have more than one drive motor. The drive motor is operated both in left and right operations.