Patent ID: 6494033
Filing Date: 2002-12-17
Classification: F02K,F16H,Y10T

Abstract:
An actuator comprising,a first, rotatable member arranged to be driven by a motor, a sleeve, the first member cooperating with the sleeve such that rotation of the first member at a given speed relative to the sleeve causes the sleeve to be translated axially at a first speed through a predetermined distance, stop means limiting axial translation of the sleeve relative to the first member so that after complete axial translation of the sleeve during continued rotation of the first member the sleeve rotates with the first member, the sleeve rotates with the first member, a second, non-rotatable, member, the sleeve cooperating with the second member whereby rotation of the sleeve at the given speed causes axial translation of the second member relative to the sleeve at a second speed and, a brake arrangement applying a braking force to the sleeve, the braking force resisting rotation of the sleeve but not significantly affecting translation of the sleeve.