Importance

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Abstract

A flywheel assembly 10 comprising: at least one flywheel mass support 14, the or each said support having a shaft 19 that extends along a rotational axis 18 about which the support 14 can rotate in use, the or each said support 14 comprising a plurality of openings 24 that are each offset from said rotational axis 18, a flywheel mass 12 comprising a plurality of openings 16 that are each arranged to align with a corresponding opening in said support; and means 23 for coupling said flywheel mass 12 to the or each said support 14 so that the mass 12 can rotate with the or each support 14 in use, said coupling means 23 being configured to extend through the aligned openings in the or each support 14 and said flywheel mass 12; wherein said flywheel mass 12 comprises a plurality of generally planar flywheel mass elements sandwiched together to form a stack of elements, each said element including a plurality of openings 16 that align with the openings 24 in the or each said support 14 and with openings in neighbouring elements in said stack, said flywheel elements being coupled together and aligned with one another to form said flywheel mass solely by means of the coupling means 23 that extends through the aligned openings in said elements and the or each said support 14.

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First Claim