Browse Publications Technical Papers 2005-32-0112
2005-10-12

Development of an Internally-Driven Engine-Propelled Bicycle Wheel 2005-32-0112

An innovative pedal-assist system for bicycles has been designed and demonstrated by RevoPower Inc. This system incorporates a single-cylinder piston-ported two stroke engine, mounted radially within the front wheel hub of a bicycle. This design is light, compact, and easily adaptable to any common bicycle. However, this application presents some unique challenges for the engine and drivetrain. This paper describes a project undertaken to further develop this self-contained engine-driven bicycle wheel to improve its performance and reduce its noise emission. As described, a variety of computational end experimental techniques were used to analyze and improve the initial engine and wheel design. The work presented here resulted in a tripling of engine power over the baseline configuration, and a simultaneous overall sound reduction of nearly 20 dB(A).

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