|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||60/39.142 ; 60/39.33|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 23 인용 특허 : 1|
A gear box is provided with three inputs mutually decoupling each other so that neither can drive the other two via the gear box but either can drive secondary power sources such as a pump and a generator. The three inputs are respectively connected to an aircraft engine shaft, a starter-air turbine and a gas turbine, whereby additionally the starter turbine is connected to drive the shaft for starting but not vice versa. The air turbine receives air from the compressor of the gas turbine or otherwise. The shaft can be disconnected from the system.