Patent ID: 9140140
Filing Date: 2015-09-22
Classification: F01D,F05D

Abstract:
1. A composite flange element, the flange element comprising a portion of a gas turbine engine casing and an adjoining flange portion, the flange element having a ply layup defining the portion of the gas turbine engine casing and defining the adjoining flange portion, the ply layup comprising: a plurality of first plies forming part of both the portion of the gas turbine engine casing and the flange portion; a plurality of second plies forming part of the flange portion, one or more of the second plies forming part of the flange portion only; and a plurality of third plies forming part of the portion of the gas turbine engine casing, one or more of the third plies forming part of the gas turbine engine casing only; wherein the first, second and third plies are selected to provide desirable properties for the portions which they form part of, each of the first, second, and third plies having a different construction; the flange element further comprising: