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美媒:歼20换装国产发动机 推力可超14吨

2017-09-21 09:02:05   国际在线

【环球网军事9月21日报道】本月初疑似换装国产“太行”(涡扇-10)改进型发动机的歼-20原型机照片在互联网上曝光后,近日国内网络上再次爆出歼-20黄皮新机图片,从这张照片来看,似乎这架歼-20新机疑似安装了国产“太行”发动机,还有国内网站称,该机已于19日成功进行首次试飞。

网络上最早曝光的是一架全新的黄色歼-20原型机图片,图片显示前机身刷有醒目的“2021”红色生产编号,身披黄色防锈底漆涂装,外界猜测这应是一架全新生产、刚刚下线的新机。网友普遍认为,这架歼-20新机换装的应该是国产“太行”改进型发动机。从发动机尾喷管外形来看,细节特征明显区别于歼-20先前使用的俄制发动机。

19日,网络上疯传的一则消息让军迷兴奋不已:“当天中午12时50分左右,使用两台国产‘太行’系列发动机的2021号歼-20,成功进行了首次飞行,并于13时17分左右顺利落地,首飞时间约27分钟”。网络上流传的所谓“换发后的歼-20新机成功试飞”的照片,似乎佐证了相关说法。网上的照片显示,新的“太行”尾喷管采用锯齿状设计。网友推测,这是在采用锯齿状收敛调节片设计,对歼-20后半球的隐形性能有不小的提升。

歼-20“换装国产发动机”的消息,也引起外媒的高度关注。美国《大众科学》网站近期报道称,中国最新制造的歼-20战机配备了“涡扇-10X”航空发动机,新发动机采用更宽的后燃烧室和可变矢量喷口。美媒认为,新型“涡扇-10X”发动机可提供14吨至15吨的推力,足以保证歼-20新机以1马赫至1.2马赫的速度巡航。美媒推测,歼-20新机发动机的进步得益于新材料技术的突破,证明中国掌握了超级合金铼的相关技术,这不仅有助于大批量制造现役战机发动机,还可以加快研究性能更好、科技含量更高的下一代战机。

除了使用到中国最先进战机上传闻之外,近日在北京航展上公开亮相的产品,似乎预示着“太行”系列已经接近或到达重要的技术成熟节点。在北京航展上,中国航发展出了一个名为QD70的燃气轮机,根据现场的文字介绍,它是以“太行”为基础研制的小档功率轻型燃气轮机,可以用在舰艇上。根据展台上的介绍,近年来,中国航发在“太行”航空发动机的基础上,研制出7MW、18MW、40MW级的舰用燃气轮机。将航空发动机改为舰用燃气轮机是西方很成熟的技术发展模式,而将某型航空发动机改为舰用型号,从侧面说明该发动机本身应该已具有一定技术实力。▲ (高 洁)

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