Snowmobile

Details Snowmobile Snowmobile

2005-04-19

2005-04-19

Winner, Tony (Department: 3611)

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

C180S186000

Reexamination Certificate

active

06880660

ABSTRACT:
A snowmobile comprising a frame defining a tunnel and a track rotatably supported by the frame is disclosed. An engine is connected to the frame and operatively coupled to the track by a drivetrain. The engine has a front side extending in a first direction from a cylinder bore axis of the engine and a back side extending in a second direction from the cylinder bore axis. Air enters a cylinder bore of the engine from the front side of the engine. Exhaust gases exit from the front side of the engine.

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Photographs A—J of a snowmobile believed to be prior art to the present application.
Illustration of engine as depicted in Photograph J. The illustration shows an engine 100. Cylinders 110 are angled, the engine being disposed so that the travel path of the pistons is roughly parallel with the steering shaft 120. Spark plugs 130 are disposed at cylinder heads 140. The steering shaft 120 is disposed over the engine 100, terminating at universal joint 150. The air intake filters 160, disposed upon carburetors or throttle bodies 170, are disposed in the front of the engine as shown. The engine is provided with exhaust manifold 180, which as depicted, exits from what is, as installed in the snowmobile, the front of the engine.

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