F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F03 MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
F03D WIND MOTORS
F03D9/00 Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
F03D9/20 Wind motors characterised by the driven apparatus