US Patent 7884493 Wind turbine generator brake and grounding brush arrangement

A disc brake arrangement is provided as adapted for a wind turbine generator incorporating a rotor shaft supporting a rotor wheel and support ring for a rotor structure surrounded by a stator structure within a generator casing. The disc brake arrangement includes a brake disc mounted normal to and concentric with the rotor shaft and operatively connected to the support ring. A plurality of disc brake calipers are arranged concentrically with the rotor shaft and adapted to engage the brake disc.