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US8387452: GENERATING ELECTRICAL ENERGY WITHIN A VEHICLE TYRE


Invention relates to a tire includes a flexible piezoelectric element associated with an energy storage device (e.g. a capacitor). The flexible piezoelectric element is mounted in cantilever-beam fashion within a housing so that a first end thereof is fixed to the housing. A loading mass is associated with the second end of the flexible piezoelectric element. A small gap is formed between the inner walls of the housing and the outer surface of the loading mass in order to allow limited flexure of the piezoelectric element. The housing, including the piezoelectric element, is mounted in a crown portion of the tire, preferably on the inner surface of the tire. The piezoelectric element flexes under the action of the longitudinal acceleration when the tire rotates.; Sufficient electrical power for powering an electronic device included within the tire is obtained, together with a long durability of the piezoelectric element.

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#PowerTire #piezoelectricTyre #Tyrepowergeneration

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