http://www.spacechina.com/zxyzx_gjht_Details.shtml?recno=61482

[据澳大利亚每日航天网站2009年8月5日报道]  美国Aerojet公司与日本NEC公司宣布，将联合探究低功率离子推进系统用于美日宇航市场的可行性。

由于具有更高的燃料效率，离子推进系统能够用作地球同步卫星的推进系统和深空任务。日本宇宙航空研发机构（JAXA）与NEC已联合研制了一台低功率“微波离子发动机”，它利用微波产生离子，具有寿命长和任务可靠性高的特征。

NEC的微波离子发动机目前正在执行JAXA的HAYABUSA小行星探测与研究任务。该任务已在太空运行超过30000小时，验证了离子发动机的坚固和可靠性。Aerojet的电子推进产品目前应用于150多颗运行卫星上。 （陈菲 曲佳）

http://www.space-travel.com/reports/Aerojet_And_NEC_To_Develop_Ion_Propulsion_Systems_For_Satellites_999.html

Aerojet And NEC To Develop Ion Propulsion Systems For Satellites

Aerojet's electric propulsion products are currently flying on more than 150 operational satellites and span a broad range of electric propulsion products.

by Staff Writers
Sacramento CA (SPX) Aug 05, 2009

Aerojet and NEC Corporation have announced that the companies will jointly explore the feasibility of jointly supplying low power ion propulsion systems for the U.S. and Japanese aerospace markets.

Ion propulsion systems can be used for geosynchronous satellite propulsion systems and deep space missions providing significant advantages over traditional chemical propulsion systems due to the higher fuel efficiency.

Japan Aerospace Exploration Agency (JAXA) and NEC have jointly developed a low power "Microwave Ion Engine" that uses microwaves for ion generation, enabling long life and high mission reliability. NEC's Microwave Ion Engine is currently flying on JAXA's HAYABUSA asteroid rendezvous and study mission, and has proven to be robust and reliable, with more than 30,000 hours of in-space operation.

"Aerojet is a leading supplier of satellite propulsion systems in the United States and has broad experience and technical capabilities with satellite propulsion systems," said Kunio Kondo, senior general manager, Aerospace and Defense Operations Unit, NEC Corporation. "Collaborating with Aerojet will help NEC to expand its low power Microwave Ion Engine business in the U. S. market."

Aerojet's electric propulsion products are currently flying on more than 150 operational satellites and span a broad range of electric propulsion products. Dr. Roger Myers, general manager of Aerojet's Redmond operations, states that "the low power Microwave Ion Engine from NEC provides an excellent complement to Aerojet's broad electric propulsion product offerings."

 

 小知识：微波离子推进简介

         离子推进又称为微波电子回旋共振离子推力器，是一种基于微波电子回旋共振放电技术的新式静电型离子推力器，该推力器具有无电极烧蚀、寿命长、比冲高、可靠性高等优点，适用于深空探测等长航时空间飞行任务。

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