Patent ID: 7348702
Filing Date: 2008-03-25
Classification: H02K,Y02E

Abstract:
1. A power supplying apparatus, comprising: a rotatable kinetic energy storage device configured to generate an airflow to cool the power supplying apparatus during operation; a stator having a rotor chamber and a plurality of electrical conductors extending therethrough; and a rotor disposed in the rotor chamber and mechanically coupled to the kinetic energy storage device, wherein rotation of the kinetic energy storage device is configured to drive the rotor and induce a current in the plurality of electrical conductors; and a shroud with a hollow interior sized to allow rotation of the kinetic energy storage device therein, the shroud interior spaced from an interior of the power supplying apparatus and communicating with the power supplying apparatus interior via vent holes, the shroud being shaped to focus the air flow into the power supplying apparatus interior as the kinetic energy storage device rotates; wherein the kinetic energy storage device generates a flow of air into the shroud interior through the vent holes and into the power supply apparatus interior as the kinetic energy storage device rotates.