|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||290/40C ; 290/40R|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 34 인용 특허 : 0|
An auxiliary power unit for an aircraft drives an electrical generator and an air compressor. The auxiliary power unit is primarily intended for operation with the aircraft on the ground when other aircraft power systems are shut down. The auxiliary power unit may, however, be used in an emergency to supplement the main aircraft generating system, with the aircraft airborne. When the auxiliary power unit generator is used in conjunction with the aircraft generating system, inlet air to the compressor is controlled to vary the compressor load on the power...
In an aircraft auxiliary power unit, having an engine, a generator driven by the engine, an air compressor driven by the engine, the speeds of the engine, air compressor and generator being directly related, a fuel valve for the engine, and an engine control having means responsive to engine speed for controlling the fuel valve to maintain constant engine speed, an improved transient engine speed control, comprising: means for varying the loading of the air compressor on said engine; and means responsive to the speed of one of the engine, generator or co...