Two-cycle engine for an outboard motor
AssigneeSanshin Kogyo Kabushiki Kaisha
InventorMasanori Takahashi
Life of this patent
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Abstract
An outboard motor including a supercharged internal combustion engine. The supercharger is positioned on a side of the crankcase opposite from the cylinders of the engine and is driven by the crankshaft through any of a plurality of different forms of drive arrangements that permit axially adjustment to maintain alignment.
Claims32
An internal combustion engine of the two cycle type comprising a crankcase rotatably journalling a crankshaft, a cylinder extending from said crankcase on one side of a plane containing the axis of rotation of said crankshaft and perpendicular to said cylinder, a supercharger for delivering a pressurized air charge to a scavenge system of said engine, said supercharger being positioned on the other side of said plane, and means for driving said supercharger from said crankshaft.
An internal combustion engine comprising a crankcase rotatably journalling a crankshaft, a cylinder extending from said crankcase on one side of a plane containing the axis of rotation of said crankshaft and perpendicular to said cylinder, a supercharger for delivering a pressurized air charge to an induction system of said engine, said supercharger being positioned on the other side of said plane, and means for driving said supercharger from said crankshaft, said supercharger being disposed so that it does not extend beyond an end of said crankcase.
An internal combustion engine comprising a crankcase rotatably journalling a crankshaft about a vertically extending axis, a cylinder extending from said crankcase on one side of a plane containing the axis of rotation of said crankshaft, a supercharger for delivering a pressurized air charge to an induction system of said engine, said supercharger being positioned on the other side of said plane and not beyond an end of said crankcase, and means for driving said supercharger from said crankshaft.
An internal combustion engine comprising a crankcase rotatably journalling a crankshaft, a cylinder extending from said crankcase on one side of a plane containing the axis of rotation of said crankshaft, a supercharger for delivering a pressurized air charge to an induction system of said engine, said supercharger being positioned on the other side of said plane and disposed so that said supercharger does not extend beyond an end of said crankcase, means for driving said supercharger from said crankshaft, and means for adjusting the axial positioning of said means for driving said supercharger from said crankshaft to maintain axial alignment between a driving member affixed to said crankshaft and a driven member affixed for rotation with a drive shaft of the supercharger which driving shaft rotates about an axis parallel to the axis of said crankshaft.
Dependencies are inferred from the claim text.