|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||F02K-001/00 B63H-011/10 B63H-011/00 B05B-012/00|
|미국특허분류(USC)||060/771; 060/770; 239/265.19; 239/265.33|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 7 인용 특허 : 6|
The proposed adaptive exhaust nozzle features an innovative use of the shape memory alloy (SMA) actuators for actively control of the opening area of the exhaust nozzle for jet engines. The SMA actuators remotely control the opening area of the exhaust nozzle through a set of mechanism. An important advantage of using SMA actuators is the reduction of weight of the actuator system for variable area exhaust nozzle. Another advantage is that the SMA actuator can be activated using the heat from the exhaust and eliminate the need of other energy source. A p...
The invention claimed is: 1. An assembly utilizing shape memory alloy actuators to control the opening area of an adaptive exhaust nozzle for jet engines, comprising a plurality of moveable leaves for movement from a first open nozzle position to a second constricted nozzle position, a linkage attached to each of said leaves connected to a synchronizing element, a plurality of shape memory actuators attached to said synchronizing element, and controlled actuation signals for said shape memory alloy actuators wherein actuation signals trigger said actuat...