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第89章 飞空之梦(2 / 2)

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经过屡次失败,刘纬暂时放弃了研制热气球的打算,准备等将来纺织业发达了,出现更先进的织布机,纺制出更为致密的棉布时,再继续研发!

当然,刘纬更希望的,是能研制出尼龙化纤材料,因为他知道,这才是制作热气球最合适的材料!但是,对于化学工业基础基本为零的刘纬来说,这项研发的难度更大!

其二,热气动力设备,也是个技术难题!总不能在热气球的吊篮里,生个火炉提供热力吧?必然需要油气动力,最理想的设备,便是油气喷灯!

对于没有电力的刘纬来说,使用天然气是不现实的,因而能利用上的也只有火油!然而,他先后设计制作了几款喷灯,都不太成功!同时,装载燃料的油罐,也不容易制造,单是这两项,便花费了刘纬许多工夫,可结果,却不尽如人意!

喷灯,不能像家用燃气灶一样,只是小火苗,必须有一定向上的喷力,否则,不仅动力不足,还会被风一吹就灭了!如何保证火焰强劲,不容易熄灭,这火油喷灯,技术含量还是很高的!

油罐,看着好像没什么,实际上也大有学问!为了保证喷灯持续运行,燃油供应必须实现自动化,总不能安排个人,不停给喷灯加油吧?最好的办法,就是加压供油,这也就意味着,油罐不能是普通的瓦罐,必须是个密封的金属容器!

有蒸汽机锅炉和加压舱的铸造经验,制作这种油罐,对刘纬来说,应该不难,可问题是,如何才能更加轻便呢?要知道,这油罐可是要随热气球上天的,如果铸造得过于沉重,无形中增加了负担,就很有可能飞不起来!

换言之,不管这油罐是铜制还是铁铸,罐壁一定要薄,而且还得能承受一定的气压!这个技术难度,对于只有初级工业基础的刘纬来说,也有点大,还真不是短期之内,就能造得出来!

受这两点因素制约,热气球的研制,一直处于相对停滞的状态,只有少数几个技术研究人员,一直在坚持探索解决之道,甚至后来,刘纬都把这件事遗忘脑后了,直到前不久,终于获得了突破性的进展!原来,致密棉布和储油罐,竟然先后研发成功!

这两项技术突破,意味着研制热气球的两大难题,迎刃而解了!接下来,便是水到渠成,第一款热气球,很快制造完成,出于保密,以免引起轰动,第一次试验,是在一片没有人烟的荒野进行的,整个过程都很顺利,热气球成功试飞!

目睹热气球缓缓升空,在场诸人无不激动,这可是人类历史上第一次升空试验啊!尤其是那些技术研发人员,更是喜极而泣,抱头痛哭,多年披肝沥血,卧薪尝胆,付出许多艰辛努力,终于成功了,他们岂能不激动!

可令人意外的是,刘纬与旁人不同,仰视着天上的热气球,竟面沉似水,一脸失望之色,因为他发现了热气球的两个致命缺陷:没有动力,飞得太低!

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