Engine balancing system
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsTetsuzo Fujikawa, Makizo Hirata, Shinichi Tamba, Akio Miguchi
Life of this patent
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Abstract
An engine balancing system for a single-cylinder engine including a single primary balancer and a counterbalancer for reducing rotational vibration, wherein the single primary balancer has an axis of rotation disposed parallel to a crank shaft of the engine and is driven at the same velocity as the crank shaft in a direction opposite to the direction of rotation of the crank shaft. A cylinder of the engine has a center line which deviates from the center axis of the crank shaft and is displaced toward the single primary balancer.
Claims3
In a single-cylinder engine comprising a crank shaft, a crank web connected to the crank shaft, a connecting rod connected to the crank web through a crank pin, a cylinder, and a piston connected to the connecting rod to move in reciprocatory movement within the cylinder, an engine balancing system comprising:
- a counter balancer supported by the crank web;
- and
- a single primary balancer rotatably supported by a shaft extending parallel to said crank shaft, said single primary balancer being driven to rotate at a velocity equal to that of the counterbalancer in a direction opposite to a direction of rotation of the counterbalancer;
- wherein a center line of the cylinder of the engine deviates from a center of rotation of the crank shaft toward the single primary balancer.
Dependencies are inferred from the claim text.