Patent ID: 6215206
Filing Date: 2001-04-10
Classification: A61M,B01D,H02K

Abstract:
A rotary linear actuator system, comprising:a motor support including a bearing support and a housing, the housing and the bearing support forming a well;a plunger element adapted to be received by the well, the plunger element being axially movable along its longitudinal axis between a fully retracted position and a fully extended position and rotatable about its longitudinal axis, the plunger element being supported by a bearing located between the plunger element and the bearing support;an array of magnets arranged on one of an outside surface of the plunger element and an inside surface of the motor support;a first set of coils being arranged to apply an axial force on the array of magnets for driving the plunger element in a linear mode; anda second set of coils being arranged to apply a tangential force on the array of magnets for driving the plunger element in a rotational mode.