Mechanismus für die veränderliche Schubdüse eines Gasturbinentriebwerks und entsprechende Schubdüse
摘要
A gas turbine engine (10) includes a variable area nozzle (30) having a plurality of flaps (38). The flaps (38) are actuated by a plurality of actuating mechanisms (40) driven by shape memory alloy (SMA) actuators (68) to vary fan exist nozzle area (36). The SMA actuator (68) has a deformed shape in its martensitic state and a parent shape in its austenitic state. The SMA actuator (68) is heated to transform from martensitic state to austenitic state generating a force output to actuate the flaps (38). The variable area nozzle (30) also includes a plurality of return mechanisms (42) deforming the SMA actuator (68) when the SMA actuator (68) is in its martensitic state. <IMAGE>
申请公布号
DE60134347(D1)
申请公布日期
2008.07.17
申请号
DE2001634347
申请日期
2001.03.02
申请人
UNITED TECHNOLOGIES CORP.
发明人
REY, NANCY M;DUNPHY, JAMES R;MILLER, ROBIN MIHEKUN;CHAUDRY, ZAFFIR A.;TILMAN, THOMAS G.;PEARSON, DAVID D.;RUKUS, ROBERT M;DREITLEIN, KENNETH C.;KETTLE, JOHN L;LOFFREDO, CONSTANTINTO;WYNOSKY, THOMAS A.