SNOWMOBILE AND ITS COMPONENTS TO ALLOW VARYING TUNNEL WIDTH Russian patent published in 2012 - IPC B62M27/02 B62D55/07 

FIELD: transport.

SUBSTANCE: invention relates to fitting different-width caterpillars on snowmobile. Spacers 158A are arranged between sides of tunnel 18A for caterpillar and compartment 20 for engine 24. Width of said spacers 158A is selected to suit required width W1 of the tunnel. Note here that identical configuration of engine compartment 20 at tunnel different width W1 may be ensured as follows. At least, one air intake control device 110, for example, carb, is arranged behind engine 24 to communicate with engine air intake. Countershaft 100 is arranged behind the engine, above air intake and ahead of device 110. Therefore, identical distance X between central line 61 and engine end is ensured in snowmobiles with different caterpillar width.

EFFECT: improved design configuration.

16 cl, 19 dwg