Patent ID: 8961142
Filing Date: 2015-02-24
Classification: B29D,B29K,B29L,F03D,F05B,F05C,Y02E,Y02P,Y10T

Abstract:
1. A protected turbine blade, comprising a first turbine blade shell and a second turbine blade shell, said first turbine blade and said second turbine blade shell being fiber-reinforced turbine blade shells connected by cured resin and provided with a protective cover at a leading edge of the turbine blade for protecting the cured resin at the leading edge of the turbine blade against erosion, wherein the protective cover is a composite comprising a layer of UV-resistant thermoplastic material and a layer of cured epoxy resin, each of the layer of UV-resistant thermoplastic material and a cured epoxy resin forming a connection with fibers of the fiber-reinforced turbine blade shells, the UV-resistant thermoplastic material having the following properties a surface free energy of less than 35 mJ/m an erosion resistance larger than an erosion resistance of the cured resin connecting the turbine blade shells, wherein the layer of cured epoxy resin covers the cured resin used for connecting the first and second blade shells over at least part of a length of a distal half of the turbine blade, and is bonded to said turbine blade.