发明名称 |
HOLLOW FAN BLADE WITH HONEYCOMB FILLER |
摘要 |
A fan blade has an airfoil main body extending between a leading edge and a trailing edge. The airfoil also has suction and pressure sides. A cavity is formed into said main body, and receives a filler material. A cover closes off the cavity, and is attached to the main body, with the cover having a thickness defined in a direction perpendicular to the suction side. The main body has a spar which extends along the cavity, with a thickness of the spar at a central location between ends of the cavity which has a second thickness. A ratio of the first thickness to the second thickness is between 0.5 and 2. A fan rotor and a gas turbine engine are also disclosed. |
申请公布号 |
EP2895698(A4) |
申请公布日期 |
2015.10.07 |
申请号 |
EP20130837768 |
申请日期 |
2013.09.06 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
WEISSE, MICHAEL A.;HUI, KWAN |
分类号 |
F01D5/14;F01D21/04;F02C7/00;F02K3/00;F04D29/38 |
主分类号 |
F01D5/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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