中国航空发动机和世界各国差距多大,这是一个很难回答的问题,中国现有的太行发动机相当于美国80年代末90年代初期F-110发动机,这个是从发动机的推力,推重比角度来说,比如加力推力都在13吨,推重比都在8一个级别,发动机都采用比较高的涵道比,油耗比较低等等。

How far the gap between China's aeroengines and the rest of the world is is a difficult question to answer. China's existing Taihang engine is the equivalent of a U.S. F-110 engine in the late 1980s and early 1990s.

  但是从另外一个角度来说,差距可能长达60年,这个角度就不是单纯比性能指标,而是可靠性和维修性,原因是,中国所有军用喷气发动机,不管是涡喷发动机还是涡扇发动机,没有一款能比得上英国60年前的一款涡扇发动机,这就是我们熟悉的斯贝发动机,装备在中国飞豹战斗轰炸机上!

But from another point of view, the gap may be as long as 60 years, which is not simply a performance indicator, but reliability and maintainability, because all of China's military jet engines, whether turbojet or turbofan, are no match for a British turbofan engine 60 years ago.

  从涡扇发动机发展历史来看,斯贝发动机并不算很完善,罗罗公司设计这款发动机的时候非常缺乏经验,这款双轴涡扇发动机最大推力吨,重量高达吨,推重比低,只有,最大优点是油耗比较低,比我国使用的涡喷7省油2成左右,而且最大推力大了2吨多。

From the perspective of the development history of turbofan engine, the SB engine is not very complete, and the design of this engine by Luoluo Company is very lack of experience. This two-shaft turbofan engine has the maximum thrust ton, the weight is up to ton, and the thrust ratio is low. Only, the biggest advantage is that the fuel consumption is relatively low, which is about 20%less than that of the vortex jet used in China, and the maximum thrust is more than 2 tons.

  世界各国对罗罗发动机公司最大的批评就是,发动机性能不错,就是喜欢搞超复杂结构,斯贝发动机也是史无前例的麻烦,采用了5级风扇,12级高压压气机,2级高压涡轮,2级低压涡轮,比同时代任何发动机都复杂,虽然结构超级复杂,但是这款发动机却具有良好的维修性和可靠性,在中国空军海军内具有无与伦比的好口碑。

The world's biggest criticism of Rollo is that the engine is good, that is, it enjoys super-complex structures, and the Sby engine is unprecedentedly troublesome, employing a 5-stage fan, a 12-stage high-pressure compressor, a two-stage high-pressure turbine, a two-stage low-pressure turbine, which is more complex than any other engine of its time.

  口碑好到啥程度,中国空军上世纪90年代接触到俄罗斯最先进战斗机苏-27的发动机AL-31F,到2000年开始使用斯贝发动机,很快就体会到巨大差距,俄罗斯发动机推力大推重比高这是最大优势,但是俄罗斯发动机设计师几乎完全不考虑飞机维修性问题,虽然俄罗斯发动机比斯贝发动机结构简单多,零件也少3成,但是拆卸检修发动机经常遇到很多麻烦,给了一个反人类的标签。

To what extent has the word of mouth been good, the Chinese air force had access to the Russian state-of-the-art fighter jet Su-27's engine AL-31F in the 1990s, and by the beginning of the use of the Sby engine in 2000, soon realized the huge gap, the Russian engine thrust is the biggest advantage, but the Russian engine designers almost completely ignore the aircraft maintenance problem, although the Russian engine is much simpler than the Sby's engine structure, but also less than three parts, but often encountered a lot of trouble to disassemble the engine, giving an anti-human label.

  原因是,斯贝发动机在设计时候考虑拆卸维修就比较完善,飞机虽然零件数量特别多,但是很容易拆卸,速度非常快,而且安装调试也不麻烦,就这一点,中国自主研发的太行发动机也赶不上。

The reason is that the sbe engine in the design of the consideration of disassembly and maintenance is relatively perfect, although the number of aircraft parts is particularly large, but very easy to disassemble, very fast, and installation and commissioning is not troublesome, on this point, china's own research and development of the taihang engine cannot catch up.

  原因是,这是英国民用航空发动机改型过来的军用发动机,而民用发动机除了省油之外,也对发动机可靠性和维修性提出了很高的要求,凡是不好修的发动机,停机时间都会大大超出预期,每多停一小时航空公司就会损失一大笔钱,几乎都会被航空公司拒绝,这是一个刚性的指标!

The reason is that this is the British civil aviation engine modified military engine, and the civil engine in addition to fuel saving, but also put forward a very high demand for engine reliability and repairability, any engine is not easy to repair, the downtime will be much more than expected, each additional hour the airline will lose a lot of money, almost will be rejected by the airline, this is a rigid indicator!

  俄罗斯航空发动机设计师,为何设计不出好修的发动机,这个问题容易解释,罗罗公司发动机设计师,需要亲自下场拆解维修自己设计的发动机,并不会坐在办公司瞎画图,好不好修,设计师自己去品尝,自己能接受的客户才能接受!

Russian aero-engine designers, why not design a good repair of the engine, this problem is easy to explain, roro engine designers, need to personally take the next stage to repair their own design of the engine, will not sit in the office drawing, good repair, designers to taste, their own acceptable customers can accept!


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