公开(公告)号：US20160356173A1

公开(公告)日：2016-12-08

申请号：US15155359

申请日：2016-05-16

Applicant: ROLLS-ROYCE plc

Inventor： David M. LONGWORTH ,  Jonathan A. JARVIS ,  Jonathan A. CHERRY ,  Hugh J. BLAKEMORE ,  John R. WEBSTER

IPC: F01D17/16 ,  F04D29/66 ,  F04D27/00

CPC classification number: F01D17/162 ,  F04D29/563 ,  F05D2300/505

Abstract: An actuation arrangement for effecting actuation of pivotable vane, for example, variable inlet guide vane in gas turbine engine. The actuation arrangement includes an actuator having a support plate and pivotable plate. The pivotable plate is fixedly connected to pivotable vane and pivotable plate and pivotable vane are pivotable about a pivot axis. The actuator further includes at least one actuation element having a length extending from support plate to proximal a transverse edge portion of pivotable plate substantially perpendicular to pivot axis. The or each actuation element is fixedly connected to each of the support and pivotable plates and formed of a material that changes dimension upon application of external energy. Thus, upon application of external energy, for example, heat, a change in length of the or each actuation element occurs such that change in length effects pivoting of pivotable plate and pivotable vane about the pivot axis.

Abstract translation: 用于实现可转动叶片的致动的致动装置，例如燃气涡轮发动机中的可变入口引导叶片。 致动装置包括具有支撑板和可枢转板的致动器。 可枢转板固定地连接到可枢转的叶片和可枢转的板上，并且可枢转的叶片围绕枢转轴线可枢转。 致动器还包括至少一个致动元件，其具有从支撑板延伸到基本垂直于枢转轴线的可枢转板的横向边缘部分的长度的长度。 该或每个致动元件固定地连接到每个支撑和可枢转板，并且由施加外部能量而改变尺寸的材料形成。 因此，当施加外部能量（例如热量）时，发生这种或每个致动元件的长度的变化，使得长度的变化影响可枢转板和枢转叶片围绕枢转轴线的枢转。