WIND ENGINE Russian patent published in 2015 - IPC F03D1/00 F03D1/02 F03D1/06 

FIELD: engines and pumps.

SUBSTANCE: wind engine includes a horizontal shaft with the main multiple-blade wind wheel installed on it and provided with blades of enlarged surface area in the air flow direction, an outer shell and a cone-shaped guide for the air flow of the middle zone. On the hub of the main wind wheel there put is an additional multiple-blade wind wheel of a smaller diameter with a toroid-shaped guide for the air flow of the central zone. The outer shell of the additional multiple-blade wind wheel is attached to blades of the main wind wheel. On outer shells of both wind wheels, uniformly located blades of the second level are fixed.

EFFECT: invention allows increasing total surface area of blades.

3 cl, 5 dwg