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Fan variable area nozzle for a gas turbine engine fan nacelle with cam drive ring actuation system

机译:带有凸轮驱动环致动系统的燃气涡轮发动机风扇机舱的风扇可变面积喷嘴

摘要

A fan variable area nozzle (FVAN) (42) includes a flap assembly which varies a fan nozzle exit area through a cam drive ring (58). The flap assembly generally includes a multiple of flaps (50), flap linkages (52) and an actuator system (54). The actuator system (54) rotationally translates the cam drive ring (58) relative an engine centerline axis which results in a follower of the flap linkage (52) following a cam surface (86) to pivot each flap (50) such that the flap assembly dilates about the circumferential hinge line. Rotation of the cam drive ring (58) adjusts dilation of the entire fan nozzle exit area in a symmetrical manner. Another cam drive ring (58' Fig 5A) includes a multiple of movable cams (84) which engages the follower of the flap linkage (52) of each flap (50) such that pivotable movement of a particular number of the multiple of movable cams (84) about a respective cam pivot results in vectoring of the FVAN (42).
机译:风扇可变面积喷嘴(FVAN)(42)包括挡板组件,该挡板组件通过凸轮驱动环(58)改变风扇喷嘴的出口面积。襟翼组件通常包括多个襟翼(50),襟翼连杆(52)和致动器系统(54)。致动器系统(54)使凸轮驱动环(58)相对于发动机中心线轴线旋转地平移,这导致襟翼连杆(52)的从动件跟随凸轮表面(86)而枢转每个襟翼(50),使得襟翼组件围绕圆周铰链线膨胀。凸轮驱动环(58)的旋转以对称方式调节整个风扇喷嘴出口区域的膨胀。另一个凸轮驱动环(图5A中的58')包括多个可动凸轮(84),这些可动凸轮与每个翼片(50)的翼片连杆机构(52)的从动件接合,使得多个可动凸轮中的特定数量的可枢转运动。围绕相应的凸轮枢轴的方向(84)导致FVAN(42)的矢量化。

著录项

  • 公开/公告号EP1956224A3

    专利类型

  • 公开/公告日2011-09-07

    原文格式PDF

  • 申请/专利权人 UNITED TECHNOLOGIES CORPORATION;

    申请/专利号EP20080250456

  • 发明设计人 BARAN KENNETH C.;

    申请日2008-02-07

  • 分类号F02K1/00;F02K1/12;

  • 国家 EP

  • 入库时间 2022-08-21 17:58:27

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