Lubricant tank for snowmobile lubrication system
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorTakashi Moriyama
Life of this patent
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Abstract
A lubricant tank for a lubrication system of a snowmobile engine includes an upper portion and a lower portion. The upper portion is enlarged relative to the lower portion. A recess is defined on an engine side of the lubricant tank by a lower surface of the upper portion and a lateral surface of the lower portion. The recess accommodates a protruding portion or component of the engine. The tank also comprises a sloping surface that extends between the upper portion and the lower portion inside the tank. Lubricant is returned in the upper portion and transferred to the lower portion through a zigzag flow path.
Claims17
A snowmobile comprising a frame assembly having a forward portion, a forward body cover disposed over the forward portion of the frame assembly, the forward body cover at least partially defining an engine compartment, an engine being mounted in the engine compartment, the engine comprising an engine body defining a cam shaft chamber and a crankcase chamber, an auxiliary component protruding laterally of the engine body, the engine further comprising a crankshaft that extends generally transverse to a generally vertical longitudinal center plane of the frame assembly, a lubricant tank comprising a forward portion and a rearward portion and being mounted within the engine compartment on a lateral side of the engine body.
A snowmobile comprising a frame assembly, an engine positioned above a portion of the frame assembly, the engine comprising an engine body, the engine body comprising a crankcase member, a cylinder block and a cylinder head, a crankcase chamber being partially defined by the crankcase member, a crankshaft extending through the crankcase, the crankshaft extending a transverse direction relative to a general direction of movement of the snowmobile, a lubricant tank being disposed to one lateral side of the engine such that a rotational axis of the engine intersects a portion of the lubricant tank, the lubricant tank comprising an enlarged upper portion and a reduced lower portion, the upper portion and the lower portion sharing at least one surface such that a recess region is defined below a portion of the upper portion and to a side of the lower portion, a lubricant return port being located in the upper portion of the lubricant tank and a guide being located in the lubricant tank generally below the lubricant return port, the lubricant tank further comprising a baffle that is disposed vertically lower than the guide and that is positioned generally to one side of the guide at a position within the lower portion of the lubricant tank.
A snowmobile comprising a frame assembly, at least one ski connected to the frame assembly, an engine mounted to the frame assembly, a lubricant tank positioned to a side of the engine, the lubricant tank comprising means for directing returning lubricant to a collecting position in the lubricant tank and the lubricant tank further comprising a recess that accommodates a laterally protruding portion of the engine.
Dependencies are inferred from the claim text.