Reciprocating drive for aircraft or boat - has profiled linear motor track to adjust drive angle within cycle

摘要

The reciprocating drive is for the variable rotor aircraft, or for the variable pitch impellers for boats. It has a profiled track formed by linear motor coils and driving a captive drive element linked to the drive linkage. No further moving parts are required and the system provides an accurate and rapid pitch control. The linkage fitted with simple universal joints.