公开(公告)号：EP2900931A4

公开(公告)日：2016-06-15

申请号：EP13841756

申请日：2013-09-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HANSEN JAMES O ,  GAROSSHEN THOMAS J ,  WATSON THOMAS J

IPC: F01D5/30 ,  B64D45/02

CPC classification number: F01D25/00 ,  B64D45/02 ,  F01D5/30 ,  F01D5/3007 ,  F01D25/007 ,  F05D2220/36 ,  F05D2270/54 ,  Y02T50/671

Abstract: A rotor has a rotor body with at least one slot receiving a blade. The blade has an outer surface, at least at some areas, formed of a first material and having an airfoil extending from a dovetail. The dovetail is received in the slot. A diode is in contact with a portion of the dovetail formed of a second material that is more electrically conductive than the first material. The diode is in contact with a rotating element that rotates with the rotor. The rotating element is formed of a third material. The first material is less electrically conductive than the third material. The diode and the rotating element together form a ground path from the portion of the dovetail into the rotor. An engine and a fan blade are also disclosed.

Abstract translation: 转子具有转子体，其具有容纳叶片的至少一个槽。 至少在一些区域，叶片具有由第一材料形成并具有从燕尾形延伸的翼型件的外表面。 燕尾接收在槽中。 二极管与由与第一材料相比更导电的第二材料形成的燕尾形部分接触。 二极管与转子一起旋转的旋转元件接触。 旋转元件由第三材料形成。 第一种材料比第三种材料导电性差。 二极管和旋转元件一起形成从燕尾的部分到转子的接地路径。 还公开了一种发动机和风扇叶片。