| 摘要 |
A crankshaft for internal combustion engines comprising a plurality of crank throws whose crank radii are made to vary throughout the crankshaft revolution. In this invention a rotating eccentric is placed between the connecting rod and crankpin of each crankthrow. The eccentrics are rotated relative to the motion of the crankshaft by a gear and pinion system engaged with a gear belt or a sprocket and chain drive system. Rotation of the eccentric may be clockwise or counter clockwise depending on the arrangement of gears used to generate either epicycloidal or hypocycloidal motion. Rotation of the eccentrics varies the effective centerline to centerline distance of each crank throw in a manner relative to the motion of the engine piston resulting in more efficient combustion and more efficient mechanical utilization of the combustion gases during the power cycle.
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