发明申请
US20110293435A1 COMPOSITE AEROFOIL 有权
复合AEROFOIL

  • 专利标题: COMPOSITE AEROFOIL
  • 专利标题(中): 复合AEROFOIL
  • 申请号: US13191655
    申请日: 2011-07-27
  • 公开(公告)号: US20110293435A1
    公开(公告)日: 2011-12-01
  • 发明人: Alison J. McMillan
  • 申请人: Alison J. McMillan
  • 申请人地址: GB London
  • 专利权人: ROLLS-ROYCE PLC
  • 当前专利权人: ROLLS-ROYCE PLC
  • 当前专利权人地址: GB London
  • 优先权: GB0424481.0 20041105
  • 主分类号: F01D5/14
  • IPC分类号: F01D5/14
COMPOSITE AEROFOIL
摘要:
A composite blade (26) comprises a three-dimensional arrangement of reinforcing fibres (58) and a matrix material (60) infiltrated around the three-dimensional arrangement of woven reinforcing fibres (60). The three-dimensional arrangement of woven reinforcing fibres (58) defines a plurality of cavities (56) within the aerofoil (28). The composite blade (26) comprises an aerofoil portion (38) and a root portion (36). The aerofoil portion (38) comprises a leading edge (44), a trailing edge (46), a concave pressure surface wall (50), a convex suction surface wall (52) and a tip (48). The aerofoil portion (36) comprises a plurality of webs (54) extending between, and being secured to, the concave pressure surface wall (50) and the convex suction surface wall (52) to produce a Warren girder structure. The three-dimensional arrangement of woven reinforcing fibres (58) are arranged to produce the concave pressure surface wall (50), the convex suction surface wall (52) and the plurality of webs (54). The matrix material (60) is an organic resin and the reinforcing fibres (58) comprise carbon fibres.
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