GEAR TOOTH PROFILE FOR A WIND TURBINE

摘要

The invention relates to an electric power-generating device that converts fluid flow to electricity. The electric power- generating device comprises a rotor having blades that rotate in response to fluid flow; a main power input shaft coupled to said rotor; and at least one gear stage, coupled to the main power input shaft. The gears (210, 220, 230) comprise an asymmetric gear tooth profile with high and low pressure angle flanks (212, 213, 222, 223, 232, 233; 336, 337, 346, 347, 356, 357) whereas the high pressure angle flank has a pressure angle (ß2) which is greater than the pressure angle (ß1) of the low pressure angle flank.