Fan blade edge
OwnerMartin Baer, Daniel Gebert +1inventors
InventorsMartin Baer, Daniel Gebert, Michael Strehle
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Abstract
The invention relates to the blades of a fan wheel. The invention particularly relates to a hollow profiled blade for a fan wheel. A hollow profiled blade according to the invention for a fan wheel is made from a planar semi-finished product and has a leading edge and a trailing edge as well as a compression side and a suction side. A hollow area is formed in the interior of the hollow profiled blade whereby the part of the planar semi-finished product forming the one side of the hollow profiled blade extends over the part of the planar semi-finished product forming the other side of the hollow profiled blade.
Claims24
A hollow profiled blade for a fan wheel whereby the hollow profiled blade is manufactured from at least a first planar semi-finished product and has a leading edge and a trailing edge as well as a compression side and a suction side and whereby a hollow area is formed in the interior of the hollow profiled blade whereby the compression side has a first part of the first planar semi-finished product and the suction side has a second part of the first planar semi-finished product, characterized in that the hollow profiled blade has a wall thickness which is less than twice the wall thickness of the first planar semi-finished product in an area which is arranged in front of the trailing edge and directly adjacent to the trailing edge.
A fan wheel for a radial fan with a top plate and a base plate, characterized in that, the fan wheel has several hollow profiled blades between the top plate and the base plate.
Dependencies are inferred from the claim text.