Snow vehicle
AssigneePolaris Industries Inc.
InventorsMichael Fuchs, Cody Telford
Life of this patent
Estimating the term…
Abstract
A snow vehicle includes a frame comprising an upper frame portion and a lower frame portion, a handlebar comprising a handlebar axis, said handlebar coupled to said upper frame portion and said lower frame portion and a tunnel comprising having a driven track shaft and a track rotatably coupled to the driven track shaft within the tunnel. A two-stroke engine includes a crankshaft and a tuned pipe coupled to the engine. The engine and the tuned pipe are positioned between the handlebar axis and the driven track shaft. A continuously variable transmission is disposed between the handlebar axis, the upper frame portion of the frame and the lower frame portion.
Claims18
A snow vehicle comprising:
- a frame assembly;
- a seat coupled to the frame assembly;
- a tunnel coupled to the frame assembly, said tunnel having an upper surface defining a plane;
- and
- an engine having a crankshaft axis disposed below the plane of the upper surface of the tunnel, said crankshaft coupled to a clutch comprising a primary clutch and a secondary clutch, said primary clutch comprising a first clutch axis of rotation disposed below the plane of upper surface of the tunnel, at least a portion of the primary clutch, at least a portion of the secondary clutch and at least a portion of the engine are disposed directly beneath the seat in a vertical direction, said secondary clutch disposed behind the engine, at least a portion of the engine disposed in front of the seat, the engine further comprises an exhaust port disposed in front of the seat and a tuned pipe coupled to the exhaust port, said tuned pipe having a first curved portion curving the tuned pipe upward after the exhaust port and a second curved portion of the tuned pipe after the first curved portion directing the tuned pipe into a rearward direction, the first curved portion and the second curved portion disposed in front of the seat.
Dependencies are inferred from the claim text.