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Snowmobile with improved drive train

A technology for motor vehicles and drive trains, applied to drive trains. Fields, can solve problems such as wall thickness

Inactive Publication Date: 2008-07-30
BOMBARDIER RECREATIONAL PROD INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is also a traditional solid countershaft that is drilled through to reduce its weight, but in order to be able to machine its splined end, the wall thickness remains very thick, so the traditional solid countershaft remains quite heavy

Method used

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  • Snowmobile with improved drive train
  • Snowmobile with improved drive train
  • Snowmobile with improved drive train

Examples

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Embodiment Construction

[0027] Referring now to FIG. 1 , a snowmobile incorporating an embodiment of the present invention is generally indicated at 10 . A particular application of the invention relates to snowmobiles, although certain aspects of the invention are applicable to other types of vehicles.

[0028] The snowmobile 10 includes a front end 12 and a rear end 14 defined in line with the direction of travel of the vehicle. The snowmobile 10 includes a frame 16 that generally includes a tunnel 18 , an engine mount portion 20 and a front suspension assembly portion 22 . Channel 18 is generally constructed of an inverted U-shaped bent metal sheet that extends rearwardly along the longitudinal axis of snowmobile 10 and connects to engine mount portion 20 at the front. An engine 24 , shown schematically in FIG. 1 , is supported by the engine mount portion 20 of the frame 16 . At the front end 12 of the snowmobile 10 is provided a steering assembly (not labeled) on which two skis 26 are positione...

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PUM

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Abstract

A snowmobile is disclosed having improved drive train including a continuously variable transmission (CVT) having a drive belt looped around a driving pulley and a driven pulley, and a transversely arranged jackshaft wherein the driven pulley is connected directly onto the outer surface of one end of the jackshaft. The transverse jackshaft is preferably made from a thin-walled hollow tube and thedriven pulley is preferably press fitted thereon. A method of assembling a snowmobile drive train is also disclosed.

Description

technical field [0001] The present invention generally relates to a snowmobile, and in particular to a drive train of the snowmobile. Background technique [0002] The drive train of a traditional snowmobile includes a variable ratio belt drive system (often referred to as a continuously variable transmission or CVT) with a drive pulley coupled directly to the engine crankshaft and a coupling The driven pulley connected to the output shaft. The drive pulley acts as a clutch and includes a centrifugally actuated adjustment mechanism through which the gear ratio of the belt drive -- as a function of engine speed and output torque of the driven pulley -- is stepped be changed. Typically, the driven pulley is coupled to a transverse intermediate drive shaft, which in turn drives the input member of the chain-and-sprocket reduction transmission. The output of the reduction drive is coupled to the shaft of the drive crawler belt at one end provided with the drive sprocket. A c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62B13/00B62M27/02F16H9/04
CPCB62M2027/023B62M27/02F16H9/18B60K17/06B60K17/22B60Y2200/252Y10T29/53
Inventor 沙维尔-皮埃尔·艾特辛约尔·皮特雷扬·诺莱特
Owner BOMBARDIER RECREATIONAL PROD INC
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