IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0977834
(2001-10-15)
|
|
발명자
/ 주소 |
- Randolph, Thomas
- Oh, David
- Guenter, Fischer
|
| 출원인 / 주소 |
- Space Systems/Loral, Inc.
|
| 대리인 / 주소 |
|
| 인용정보 |
피인용 횟수 :
4 인용 특허 :
18 |
초록
▼
An electric propulsion (EP) device is used to enable, a stationkeeping satellite to track a prescribed stationkeeping Earth orbit. EP propellant and electric power are throttled to vary the thrust and specific impulse of the EP device. A solar array provides electrical power during each Earth day cy
An electric propulsion (EP) device is used to enable, a stationkeeping satellite to track a prescribed stationkeeping Earth orbit. EP propellant and electric power are throttled to vary the thrust and specific impulse of the EP device. A solar array provides electrical power during each Earth day cycle with excess power above that needed by the spacecraft stored by a battery. Software control manages the voltage, current and burn time to minimize propellant usage and impact to the system.
대표청구항
▼
An electric propulsion (EP) device is used to enable, a stationkeeping satellite to track a prescribed stationkeeping Earth orbit. EP propellant and electric power are throttled to vary the thrust and specific impulse of the EP device. A solar array provides electrical power during each Earth day cy
An electric propulsion (EP) device is used to enable, a stationkeeping satellite to track a prescribed stationkeeping Earth orbit. EP propellant and electric power are throttled to vary the thrust and specific impulse of the EP device. A solar array provides electrical power during each Earth day cycle with excess power above that needed by the spacecraft stored by a battery. Software control manages the voltage, current and burn time to minimize propellant usage and impact to the system. WO97/016881, WO; WO97/045288, WO; WO97/045847, WO; WO97/045848, WO; WO97/045906, WO; WO97/045907, WO; WO97/045912, WO; WO97/045914, WO; WO97/045915, WO; WO97/045916, WO; WO97/045918, WO; WO97/045919, WO; WO97/045920, WO; WO97/045921, WO; WO97/045922, WO; WO97/045923, WO; WO97/045924, WO; WO97/045925, WO; WO97/045926, WO; WO97/045927, WO; WO97/045928, WO; WO97/045929, WO; WO97/045930, WO; WO97/045931, WO; WO97/045932, WO; WO97/045933, WO; WO97/045934, WO; WO97/045935, WO; WO97/045936, WO; WO97/045937, WO; WO97/045938, WO; WO97/045939, WO; WO97/047067, WO; WO98/020595, WO; WO98/020596, WO; WO98/020597, WO; WO98/020598, WO; WO98/020600, WO; WO98/020602, WO; WO98/021385, WO; WO98/027634, WO; WO98/027635, WO; WO98/027636, WO; WO98/029927, WO; WO98/029928,
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