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CFM完成LEAP引擎首次飞行测试 将用于C919客机

2014-10-11 10:20:46   环球网

国产C919大客机模型(资料图)

据美国《航空周刊》10月9日报道,当地时间6日,在美国加利福尼亚州胜利谷,装在一架由通用电气(GE)改装而成的波音747测试平台上的CFM新型引擎Leap-1C完成了它的第一次航空动力学评估,宣告CFM国际的新一代Leap家族民用客机引擎飞行测试正式开始。Leap-1C引擎的内部机械构造和将用来为空中客车A320neo提供动力的Leap-1A引擎完全一样。然而,Leap-1C引擎被指定用于由中国商用飞机有限责任公司(COMAC)研制的C919窄体客机之上。Leap家族的另一位成员Leap-1B引擎将为波音737MAX提供动力,它计划于2015年进行飞行测试。

CFM国际表示, Leap-1C在将近3个小时的飞行测试中“表现良好”。这家美国GE航空和法国Snecma的合资公司还补充说,接下来几周的飞行测试还要对该引擎先进发动机短舱的设计进行评估,该发动机短舱是由Aircelle和的MRAS的合资公司Nexcelle设计开发的。该设计将标准推力反向转换器配置中传统的双片“D”形门替换成了一条复合材料制成的“O”形导管,消除了传统设计所产生的一些缺陷并提高了反向转换器的效率。CFM表示整合后的引擎拥有更优异的空气动力性能和更轻的重量并且更易于维护。

尽管Leap-1系列引擎距离首次交付使用还有两年时间,但其制造商CFM国际已经收到了超过7900台Leap引擎的订单。此外,Leap-1系列引擎还是C919和737MAX的唯一指定引擎,它将同美国普惠公司研制生产的PW1100G引擎竞争为A320neo提供动力。

Leap引擎地面和空中的全部测试验证将包含,由CFM方面进行的对28台Leap的测试以及由空客、波音和中国商飞分别进行的涉及32台Leap的测试。Leap-1A和Leap-1C计划于2015年取得合格证书,Leap-B取得证书的时间目前估计在2016年初。(实习编译:马骢审稿:聂鲁彬)

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