Planetary-Lever Mechanism for Converting Oscillatory and Reciprocating Motion into Continuous Rotation with Integrated Torque Amplification
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Nurlan K. Maksutaliev
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Conventional mechanisms for converting oscillatory or reciprocating motion into rotation — crank-slider assemblies, Scotch yoke drives, eccentric discs — accomplish the kinematic transformation but provide no inherent torque amplification and require separate transmission stages to adjust the gear ratio. This paper presents the Mechanical Converter–Power Amplifier (MCPA), a single-unit device that simultaneously performs motion conversion, torque amplification, and continuously variable gear-ratio adjustment. The operating principle combines a two-arm lever whose outer arm constitutes the power take-off shaft (PTO) with a planetary-style gear-on-ring-sector sub-system housed within a pivoting casing; the assembly is termed the planetary-lever method. Preliminary analytical modelling based on the lever principle and a product-of-components efficiency estimate yields a net mechanical efficiency of η = 0.858 and a torque amplification factor of 2.4 relative to the applied input force at the lever tip. The mechanism is protected by Kyrgyz Patent No. 1425 (priority date 22 October 2010) and Eurasian Patent No. 024795 B1. Conceptual applications in run-of-river hydropower, sail-driven wind energy conversion, and marine wave energy harvesting are discussed, exploiting the device's capacity to accept non-linear, arcuate, and wave-form input displacement in addition to purely reciprocating strokes.
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Authors
Nurlan K. Maksutaliev
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References:
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