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2017-09-19View Original

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Le principe de la cuve d'huile d'un pompe centrifugeue勒泵油杯是连通器原理让人难以信服
Reply #22017-09-20
Une fois que le niveau d'huile油位下降后,油杯泄油口与轴承箱油面之间产生空隙,空气进入油杯,油杯内的气压变化使油流出,这种说法被认为是连通器原理,而且书上都这么说,这是为什么谁能给我解释
Reply #32017-11-03
Le niveau d'huile轴承箱的油和油杯里的油构成连通器。存在的的外力为大气压,它们都在大气压下
Reply #42017-11-24
Vous verrez把瓶子罐3/4的水,倒扣在水中,瓶子中的水会流出来吗?不会的!当你把瓶口移向水面时,水就会流出来的。轴承箱和恒位油杯下面的座油位是一样的的,当轴承箱内的油位变低时,恒位油杯下面座里的油位也会降低当低到一定位置,油杯下口露出来时,空气就会进入油杯,油杯内的油就会流出当油位盖住油杯下口时油杯就不再补油了
Reply #52017-11-24
J'avais eu la même doute auparavant.如果连通器的话,那两边的液位应该一样高啊,液位计的原理嘛。后来我才知道因为油杯液面顶部的空气不与大气相同,而轴承箱液面与大气相通当补油时,油杯液面降低此时顶部空气体积变大压力变小气体压力不足以推动油进入轴承箱液位恒定了。

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