DROP-SHAPED WINDMILL Russian patent published in 2012 - IPC F03D1/04 B63H13/00 

FIELD: engines and pumps.

SUBSTANCE: windmill comprises streamlined body and turbine arranged in most thickened section. Said streamlined body consists of two parts: front and streamlined parts. Turbine has shaped vanes mounted vertically all along the circumference with mounting angle of 22.5 degrees in root section and up to 45 degrees in vane end sections and more, relative to streamlined body lengthwise section. Windmill comprises rod arranged in streamlined section for mounting bearing with gear whereon turbine seats. Windmill comprises streamlined part lock nut, front part rod, front part lock nut and discs to retain front and streamlined part shapes. Turbine serves to drive electric generator to produce electric power and to drive water propeller of watercraft.

EFFECT: higher efficiency and simplified operation.

1 cl, 1 dwg