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疑为歼-20配套零部件开始量产 一年供货达200套

2016-03-22 10:29:48   利刃微信公众号

航天科工官网截图

【利刃军事第374期 文/王亮】自歼-20横空出世之后,由于官方透露的消息一直比较有限,所以很多分析都是从零散的消息碎片中来判断出来的。3月17日,中国航天科工集团官网发布了一则消息。报道称:“近日,河南总公司695厂为中航工业空空导弹研究院研制的用于某型号四代机新型液压弹射装置的4种2D电磁换向阀顺利通过了定型评审。”“自2013年以来,通过与空空导弹研究院的深入合作,695厂的2D电磁换向阀在单机试验、地面系统试验、空中挂飞试验、空中飞行试验中均稳定可靠,表现出了极高的性能指标与可靠性,得到了供方的充分肯定,年内供货预计可达200套。”

文章中透露的一些细节还是很有意思的。“某型号四代机”,如果不出现意外的话,基本就是歼-20了。因为据信歼-31可能于今年才能生产出第二架原型机。如果报道中提到的“2D电磁换向阀”是为了歼-31生产的话,那么显然没有必要年内供货200套。

有人不禁要问了,凭什么说“年内供货200套”就说明这种产品是给歼-20生产的,而不是给歼-31生产的呢?虽然我们现在无从判断报道中说的“新型液压弹射装置”每套需要多少个“2D电磁换向阀”,但是从报道中可以看出,该部件已经经过了单机试验、地面系统试验、空中挂飞和空中飞行试验。报道中说“年内供货可达200套”, 注意说的“是供货”,实际上潜台词就是说:我们这个零件马上就开始量产然后给供方。那么就算一架四代机用50个该电磁换向阀,说明至少可以用于四架飞机。从目前来看,歼-31年内也不应该不至于生产四架,所以认为报道中提到的“某型号四代机”是歼-20就完全符合逻辑的了。既然零部件开始量产,恐怕歼-20量产的时间也越来越近了吧。这与么大家普遍推测的歼-20将于今年小批量生产并装备空军领先使用也很吻合。

此图鸣谢战略网/汉魂雄风

报道中还有一点值得大家关注。从报道中写到的“用于某型号四代机新型液压弹射装置”和“通过与空空导弹研究院合作”等细节看。这种2D电磁换向阀显然是用于四代机空空导弹的弹射挂架。

空射导弹的发射方式通常有两种:其一是导轨点火发射。即导弹在自身火箭发动机的推动作用下从导轨上发射出去,飞离载机,采用此种发射方式时通常使用导轨式武器挂架/发射架,其二:弹射式发射。即导弹必须通过液压弹射装置弹离载机,此后导弹在空中完成点火并飞向目标。

2D电磁换向阀就是液压弹射装置的一部分,控制液压阀体内各油口连通或断开,从而控制液压执行元件的换向或启停。是液压弹射装置中的关键部分。现代隐身战机为了满足隐身需求,都采用了内置式弹射机构。把弹射机构藏在武器仓内。发射导弹时,导弹舱门打开,弹射系统将导弹弹射到飞机外部,导弹被点火。当导弹发射以后,弹射系统将快速收回到武器仓内,舱门关闭。内置式弹射机构通常以压缩气体为动力源,能避免燃气烟火。所以,内置式弹射机构能有效隐藏导弹信号特征,达到隐身目的,同时能使飞机配置更多的武器,使飞机保持良好的气动外形,从而明显提高飞机的综合作战能力。

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