Wind power machine has valve flap in each rotor blade pivotable to limited extent in working rotation direction from blocking setting to passage setting in which throughflow opening in blade is exposed

摘要

The device has a base and at least one flow conducting radial rotor (5) rotatably mounted on the base and with several blades (7) whose incident flow surfaces are approximately axially parallel. At least part of the incident flow surface of each blade is made up of a valve flap (31) pivotable to a limited extent in the working rotation direction (25) from a blocking setting to a passage setting in which it exposes a throughflow blade opening. AN Independent claim is also included for the following: (a) a wind power wheel.