Patent ID: 6312358
Filing Date: 2001-11-06
Classification: F16H,Y10T

Abstract:
A constant speed drive apparatus for an aircraft generator, comprising:an input shaft for receiving drive torque from an aircraft engine;a traction speed change mechanism having a continuously-variable speed change ratio, said traction speed change mechanism being coupled to said input shaft;an output shaft for supplying the aircraft generator with drive torque, said output shaft being arranged to have a rotational speed varied by said traction speed change mechanism; anda rotational-frequency controlling mechanism for controlling the speed change ratio of said traction speed change mechanism so as to maintain said output shaft at a predetermined rotational frequency;wherein said traction speed change mechanism includes:an input disk interlocked to said input shaft;an output disk interlocked to said output shaft;transmission rollers disposed between said input disk and said output disk;yoke members for supporting said transmission rollers such that said transmission rollers are pivotable about an axis perpendicular to an axis of rotation of each of said transmission rollers and an axis of rotation of said input disk; andand actuator for pulling said yoke members along the axis of rotation of said input disk so as to draw said transmission rollers toward said input disk to generate a pressing force of said transmission rollers.