Continuously variable transmission mounting assembly

摘要

A snowmobile has a frame with an engine compartment and a tunnel, a front suspension, at least one ski, an engine, a bracket having a first portion joined to the engine and a second portion having an aperture defined therein, an output shaft, a countershaft passing through the aperture, a motion decoupler disposed around the countershaft and being supported by the second portion of the bracket, the countershaft being rotationally supported in the motion decoupler, a driving pulley disposed on the output shaft, a driven pulley disposed on the countershaft, a drive belt looped around the driving and driven pulleys, and an endless drive track. The driving pulley, the driven pulley and the drive belt together form a continuously variable transmission.

主权项

1. A snowmobile comprising:
a frame, the frame including:
an engine compartment; anda tunnel rearward of the engine compartment; a front suspension connected to the frame; at least one ski connected to the front suspension; an engine disposed in the engine compartment; a bracket having a first portion joined to the engine and a second portion having an aperture defined therein; an output shaft driven by the engine; a countershaft passing through the aperture; a motion decoupler disposed around the countershaft, the motion decoupler being supported by the second portion of the bracket, and the countershaft being rotationally supported in the motion decoupler; a driving pulley disposed on the output shaft and rotating therewith; a driven pulley disposed on the countershaft and rotating therewith; a drive belt looped around the driving and driven pulleys to transfer torque from the driving pulley to the driven pulley, the driving pulley, the driven pulley and the drive belt together forming a continuously variable transmission; and an endless drive track disposed below the tunnel for propelling the snowmobile, the endless drive track being operatively connected to the countershaft.