Patent ID: 6817960
Filing Date: 2004-11-16
Classification: B60K,B60Y,F16H,Y10T

Abstract:
A hydrostatic transaxle comprising:an axle module comprising an axle casing, a differential and a reduction gear train connected to said differential, said gear train including an input drive, said differential and gear train disposed in said axle casing; a pair of axles connected to said differential and supported within said axle casing; a hydrostatic transmission module comprising a transmission casing separate from said axle casing and a hydraulically connected rump and motor disposed in said transmission casing, said pump having an input driving said pump and said motor having an output means drivingly connected to said reduction gear train; said hydrostatic transmission casing removably connected to said axle mechanism casing; said motor output means comprising a shaft piloted to said input drive of said reduction near train, the piloting of said shaft and input drive constituting the alignment mechanism of said hydrostatic transmission module and said axle module; and wherein said motor output means comprises an output shaft and said input drive comprises an input shaft, said output shaft defining a first surface coaxially engaged with a second surface defined by said input shaft, said output shaft not radially confined by said axle casing, whereby the alignment of said axle module with said transmission module consists solely of engagement of said first and second surfaces of respective output and input shafts.