Snowmobile exhaust system
AssigneeBombardier Recreational Products Inc.
InventorsMathieu Gauthier, Michel Lefebvre
Life of this patent
Estimating the term…
Abstract
A snowmobile has a frame including a tunnel, a least one ski operatively connected to the frame, a seat disposed above the tunnel, a fuel tank disposed on the frame, and an engine connected to the frame forwardly of the fuel tank. The engine has at least one cylinder, at least one intake port, at least one exhaust port, and a laterally extending output shaft defining an output shaft axis. An endless track is disposed at least in part under the tunnel and is operatively connected to the engine. An air intake system is fluidly connected to the at least one intake port. An exhaust system is fluidly connected to the at least one exhaust port. The exhaust system includes a muffler disposed between the output shaft axis and the fuel tank in a longitudinal direction of the snowmobile.
Claims32
A snowmobile comprising:
- a frame including a tunnel;
- a least one ski operatively connected to the frame;
- a seat disposed above the tunnel;
- a fuel tank disposed on the frame;
- an engine connected to the frame, the engine being disposed forwardly of the fuel tank, the engine having at least one cylinder, at least one intake port fluidly communicating with the at least one cylinder, at least one exhaust port fluidly communicating with the at least one cylinder, and a laterally extending output shaft defining an output shaft axis;
- an endless track disposed at least in part under the tunnel and being operatively connected to the engine;
- an air intake system fluidly connected to the at least one intake port;
- and
- an exhaust system fluidly connected to the at least one exhaust port, the exhaust system including a muffler, the muffler being disposed between the output shaft axis and the fuel tank in a longitudinal direction of the snowmobile, the muffler passing through a vertical plane containing a longitudinal centerline of the snowmobile.
A snowmobile comprising:
- a frame including a tunnel;
- a least one ski operatively connected to the frame;
- a seat disposed above the tunnel;
- a fuel tank disposed on the frame;
- an engine connected to the frame, the engine being disposed forwardly of the fuel tank, the engine having at least two cylinders, at least two intake ports fluidly communicating with the at least two cylinders, at least two exhaust ports fluidly communicating with the at least two cylinders, and a laterally extending output shaft defining an output shaft axis;
- an endless track disposed at least in part under the tunnel and being operatively connected to the engine;
- an air intake system fluidly connected to the at least two intake ports;
- and
- an exhaust system fluidly connected to the at least two exhaust ports, the exhaust system including a muffler, the muffler being disposed between the output shaft axis and the fuel tank in a longitudinal direction of the snowmobile,
- each of the at least two cylinders having a cylinder axis;
- at least a portion of the muffler being disposed between two longitudinally extending vertical planes;
- one of the two longitudinally extending vertical planes containing one of the cylinder axes;
- and
- another one of the two longitudinally extending vertical planes containing another one of the cylinder axes.
A snowmobile comprising:
- a frame including a tunnel;
- a least one ski operatively connected to the frame;
- a seat disposed above the tunnel;
- an engine connected to the frame, the engine being disposed forwardly of the fuel tank, the engine having at least one cylinder, at least one intake port fluidly communicating with the at least one cylinder, at least one exhaust port fluidly communicating with the at least one cylinder, and a laterally extending output shaft defining an output shaft axis;
- a drive axle operatively connected to the output shaft and defining a drive axle axis;
- an endless track disposed at least in part under the tunnel and around the drive axle, the endless track being operatively connected to the drive axle;
- an air intake system fluidly connected to the at least one intake port;
- and
- an exhaust system fluidly connected to the at least one exhaust port, the exhaust system including a muffler, the muffler being disposed between the output shaft axis and the drive axle axis in a longitudinal direction of the snowmobile, wherein the muffler passes through a vertical plane containing a longitudinal centerline of the snowmobile.
Dependencies are inferred from the claim text.