|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 28 인용 특허 : 80|
Methods and systems for starting aircraft turbofan engines are disclosed. A system in accordance with one embodiment includes an electrically-powered starter motor coupled to a turbofan engine to provide power to the turbofan engine during an engine start procedure. The system can further include an on-board, deployable, ram air driven turbine coupled to an electrical generator, which is in turn coupled to the starter motor to provide electrical power to the starter motor. In other embodiments, the ram air driven turbine can be replaced with a fuel cell ...
We claim: 1. A method for operating a turbofan engine, comprising: allowing an unstarted turbofan engine of an aircraft to windmill during flight; deploying a ram air driven turbine into an airstream adjacent to the aircraft; extracting electrical power from the ram air driven turbine via an electrical generator coupled to the ram air driven turbine; starting the turbofan engine by directing the electrical power to a starter motor coupled to the turbofan engine; and testing at least one of the ram air driven turbine and the electrical generator on the g...