Lifting Body

So that no complex guides and bearings, with corresponding power losses, should be necessary, the wing is a floating body. This does not oscillate about an axis as in pure rotation, but has a motion that is a resultant of rotation and translation. This maintains the angle of attack in the better, positive range past the middle of the distance. This ensures a more uniform useful force over the movement, and the c_a value can achieve 1,0 on average. Furthermore, the latter is not zero at the turning point, since the reversal is initiated before the limiting angle of deflection is reached; this provides a more dynamic motion. Giving up the last bit of the traverse is less important.Since the direction of effective flow past the profile deviates much less from, in this case, the river current, the vector of the axial load is relatively much smaller than in a fast-running turbine.The lifting body does not literally reverse at the turning point, but rather changes its shape. How is the essence of the patentability, and cannot be revealed at this point.

Lutz Kroeber 2007