Device for direct driving of wheels
OwnerWang Qizheninventor
Life of this patent
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Abstract
A device for direct-driving of wheels, adapted for various minivehicles, in particular, for bicycles, motorbikes, or motorcycles. The device comprises a fixed wheel axle, a wheel hub rotating about said wheel axle, an engine, and transmission units. Said engine and transmission units are enclosed inside the wheel hub; the engine's crankshaft is disposed offset from and parallel to the wheel axle; the transmission units have an overrunning clutch. The wheel hub is supported at both sides thereof. The transmission units can be completely disengaged from the wheel hub when the engine is stopped. A simple, safe and convenient conversion between the manpower-drive mode and the engine-drive mode is ensured on a vehicle equiped with the device.
Claims13
An apparatus, adapted for use in direct-driving wheels of minivehicles such as motorbikes or motor cycles, and in particular bicycles, comprising:
- a wheel axle, fixed to a vehicle frame;
- a wheel hub, rotatable about said wheel axle;
- a flywheel mounted on the outer periphery of said wheel hub and connecting to a pedal-driving mechanism;
- an engine, positioned inside said wheel hub and fixed on said wheel axle, the main journal axis of a crankshaft of said engine being offset from, and parallel to, said wheel axle;
- a transmission, disposed between said engine and the wheel hub, providing at least two stages of power reduction;
- a clutch means to automatically connect said transmission from said engine and said wheel hub during operation, said clutch means automatically disconnecting said transmission from said engine and said wheel hub when said engine is stopped;
- and
- an engine starting mechanism, disposed substantially inside said wheel hub, and attached to a first stage of said power reduction in said transmission unit for controllably transmitting the wheel hub rotation to the engine crankshaft.
Dependencies are inferred from the claim text.