Internal combustion engine for a motorcycle
AssigneeAVL List GmbH
InventorFranz Laimböck
Life of this patent
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Abstract
This invention relates to an internal combustion engine for a motorcycle, with two or more single cylinders arranged in a plane approximately normal to a crankshaft, each cylinder accommodating a reciprocating piston and the pistons acting via connecting rods on the same crank of the crankshaft supported in a crankcase. To reduce manufacturing expense, the engine is to be provided with modular components for universal use with at least two different cylinder arrangements (V-type, W-type).
Claims39
An internal combustion engine for a motorcycle, with at least two single cylinders arranged in a plane approximately normal to a crankshaft and the cylindrical axis of each cylinder intersecting the crankshaft axis, each cylinder accommodating a reciprocating piston and the pistons acting via connecting rods on the same crank of the crankshaft supported in a crankcase, wherein the engine is provided with modular components for universal use with at least two different cylinder arrangements, wherein the crankcase has a crankcase body, which, apart from a flange face for the cylinders, is designed for at least a first and a second cylinder arrangement, said body comprising at least main bearing walls and crankcase side walls, and wherein the first cylinder arrangement is formed by at least two cylinders arranged in the shape of a V and the second cylinder arrangement is formed by at least three cylinders arranged in the shape of a W.
A modular system for an internal combustion engine for a motorcycle, with at least two single cylinders arranged in a plane approximately normal to a crankshaft and the cylindrical axis of each cylinder intersecting the crankshaft axis, each cylinder accommodating a reciprocating piston and the pistons acting via connecting rods on the same crank of the crankshaft supported in a crankcase, wherein the engine is provided with modular components for universal use with at least two different cylinder arrangements, wherein the crankcase has a crankcase body, which, apart from the flange face for the cylinders, is designed for at least a first and a second cylinder arrangement, said body comprising at least main bearing walls and crankcase side walls, and wherein the first cylinder arrangement is formed by at least two cylinders arranged in the shape of a V and the second cylinder arrangement is formed by at least three cylinders arranged in the shape of a W.
Dependencies are inferred from the claim text.