Gm Global Technolgoy Operations, Inc.

Roy K Martin

Reece R Fuehrer

An engine direction reversing gear arrangement has a drive gear on the engine centerline and a driven gear, meshing with the drive gear, on the an idler shaft. The transmission input is an angle gear such that a V-drive is provided between the engine and the vehicle output drive members. The direction reversing is accomplished with two gear meshes, the gear pair on the engine and transmission centerline and the angle input drive to the transmission.

Drive-reversing gearing for an engine driven transmission

A torque clipping mechanism embodying the concepts of the present invention is adapted to obviate torque spikes from being imparted to the transmission of a vehicle by the crankshaft of an engine during the start-up and shut-down procedures for that engine. The torque clipping mechanism operates in conjunction with a torque transfer device that is operatively connected between the crankshaft, which delivers torque from the engine, and the rotatable input shaft of a vehicular transmission. A spring is employed to effect the application of the torque transfer device, but the spring allows slippage of the torque transfer device upon the application of a pre-determined torsional force to the torque transfer device. Hydraulic fluid acting under centrifugal force is employed to preclude slippage when the rotational speed of the power output shaft exceeds a predetermined rate.

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Plainfield, IN, United States of America

Roy K Martin