发明申请
- 专利标题： FAN BLADES WITH PROTECTIVE SHEATHS AND GALVANIC SHIELDS
- 专利标题（中）： 风扇叶片与保护性脚骨和气囊
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申请号： PCT/US2013/076028申请日： 2013-12-18
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公开(公告)号： WO2014137448A1公开(公告)日： 2014-09-12
- 发明人: MURDOCK, James, R.
- 申请人： UNITED TECHNOLOGIES CORPORATION
- 申请人地址： One Financial Plaza Hartford, CT 06101 US
- 专利权人： UNITED TECHNOLOGIES CORPORATION
- 当前专利权人： UNITED TECHNOLOGIES CORPORATION
- 当前专利权人地址： One Financial Plaza Hartford, CT 06101 US
- 代理机构： MILLER, Thomas, A.
- 优先权： US61/775,255 20130308
- 主分类号： F01D5/28
- IPC分类号： F01D5/28 ; F01D5/14 ; F02C7/00
摘要：
Light weight fan blades for turbofan jet engines are disclosed. The fan blades may be fabricated from an aluminum alloy. To enhance the hardness of the leading edge of the fan blade, a titanium sheath may be attached to the leading edges of the fan blades. To prevent galvanic coupling between the titanium and the aluminum, a polymeric liner may be disposed between the protective titanium sheath and the aluminum fan blade. The liner may be fabricated from a polymer material, such as a polyimide or another high performance polymer.
