Patent ID: 6139458
Filing Date: 2000-10-31
Classification: F16H,Y10T

Abstract:
A transmission system comprising:a multiple speed range hydrostatic drive having an output;a drive shaft having a first input connected in rotatable communication with the output of the hydrostatic drive and a second input adapted for connection in rotatable communication with a clutch selectable engageable with an engine for rotating the drive shaft therewith;the hydrostatic drive being selectable operable in at least a first drive mode for rotatably driving the drive shaft within a first rotational speed range, in a second drive mode for rotatably driving the drive shaft within a second rotational speed range, and in a neutral mode for allowing the drive shaft to rotate with the engine when the clutch is engaged;wherein the hydrostatic drive includes a planetary gear set; andwherein the planetary gear set includes a ring gear, a carrier, and a clutch disposed between the ring gear and the carrier engageable for locking the ring gear and the carrier together for operating the hydrostatic drive in the second drive mode.