| 摘要 |
A nutation drive apparatus wherein the nutator is prevented from rotating or is allowed to undergo controlled rotation in one direction during operation of the apparatus by means of simultaneous nutative contact with two rotors or stators or by restraining means acting on the central plane of nutation of the nutator. The nutator may make contact with the rotor(s) or stator(s) by means of friction-drive surfaces and the position of the centre of nutation which remains stationary during nutation may be varied relative to the rotor(s) or stator(s). |
