Aerofoil

Details Aerofoil Aerofoil

2007-05-17

2010-10-26

Kershteyn, Igor (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

With fluid passage in working member communicating with...

Air and watercraft propellers

C416S22900R, C416S23100A, C416S232000, C029S889720

Reexamination Certificate

active

07819627

ABSTRACT:
An aerofoil made from a sheet metal blank which is bent in the shape of an aerofoil such that it has a leading edge, a trailing edge, a pressure side and a suction side, and the blank is joined at the trailing edge. The regions of the sheet metal blank that form the leading edge, trailing edge and pressure side of the aerofoil comprise a plurality of perforations. The suction side region of the sheet metal blank is imperforate.

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