| 摘要 |
<p>A variable pitch propeller e.g. for light aircraft has blades which are mounted in a hub for rotation about their longitudinal axes. The ends of the blades entering the hub have a pinion meshing with axially slidable racks located at the centre of the hub. In order to permit adjustment of play at the teeth flanks, the pinions are arranged at the ends of the blades at right angles to the axes of the blades and can be moved towards or away from the respective racks.</p> |
