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公开(公告)号：EP2809578A2
公开(公告)日：2014-12-10
申请号：EP13777576.3
申请日：2013-01-25
CPC分类号： F01D5/3007 , F05D2220/36 , F05D2250/131 , F05D2250/14 , F05D2250/141
摘要： A fan blade includes a root including a front surface, a rear surface, a first side surface connected to the front surface and the rear surface, and a second side surface connected to the front surface and the rear surface. The front surface engages the first side surface and the second side surface by one or more blunted surfaces, and the rear surface engages the first side surface and the second side surface by one or more blunted surfaces. A blade extends from the root.
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公开(公告)号：EP3040517B1
公开(公告)日：2020-02-05
申请号：EP15202175.4
申请日：2015-12-22
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公开(公告)号：EP3040517A1
公开(公告)日：2016-07-06
申请号：EP15202175.4
申请日：2015-12-22
CPC分类号： F01D5/147 , F01D5/02 , F01D5/28 , F01D5/3007 , F01D5/326 , F01D21/045 , F02K3/06 , F05D2220/32 , F05D2220/36 , F05D2230/20 , F05D2240/303 , F05D2240/80 , F05D2260/30 , F05D2300/173 , F05D2300/174 , Y02T50/671
摘要： A turbojet fan blade (132) adapted for securement to an engine rotor (130) includes a titanium sheath (150) that extends continuously over its leading edge (142) from blade tip (148) to blade root (146). The sheath (150) provides impact protection over the leading edge (142) of the blade (132), and also incorporates enhanced radial securement of the sheath (150) to the rotor (130). As such, a radial lock system for the sheath (150) is disclosed that includes a fully integrated sheath portion that extends completely over the frontal face (170) of a fan blade dovetail, providing a radial lock of the sheath (150) to the rotor (130) in the event of failure of any adhesive (158) used to attach the sheath (150) to the leading edge (142). Because the sheath (150) extends continuously from blade tip (148) to the blade root (146), lightning strike protection is enhanced by avoidance of any discontinuities otherwise associated with related art sheaths that typically extend over only a flow path portion of the leading edge.
摘要翻译： 适于固定到发动机转子（130）的涡轮喷气扇叶片（132）包括在其前缘（142）上从叶尖（148）连续延伸到叶根（146）的钛护套（150）。 护套（150）在叶片（132）的前缘（142）上提供冲击保护，并且还包括护套（150）到转子（130）的增强的径向固定。 因此，公开了一种用于护套（150）的径向锁定系统，其包括完全一体的护套部分，该护套部分完全延伸超过风扇叶片燕尾的正面（170），从而提供护套（150）径向锁定至 在用于将护套（150）附接到前缘（142）的任何粘合剂（158）失效的情况下，转子（130）被移除。 由于护套（150）从叶片尖端（148）连续延伸到叶片根部（146），所以通过避免与现有技术护套相关联的任何不连续性来增强雷击保护，所述现有技术护套通常仅延伸超过引导线的流动路径部分 边缘。
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公开(公告)号：EP2809578B1
公开(公告)日：2017-03-08
申请号：EP13777576.3
申请日：2013-01-25
CPC分类号： F01D5/3007 , F05D2220/36 , F05D2250/131 , F05D2250/14 , F05D2250/141
摘要： A fan blade includes a root including a front surface, a rear surface, a first side surface connected to the front surface and the rear surface, and a second side surface connected to the front surface and the rear surface. The front surface engages the first side surface and the second side surface by one or more blunted surfaces, and the rear surface engages the first side surface and the second side surface by one or more blunted surfaces. A blade extends from the root.
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