汽车回油管怎么找?

2025-02-08 02:52:43
推荐回答(5个)
回答1:

汽车的发动机分为汽油机和柴油机。汽油机有两种,一种是有回油管另一种没有回油管。油压调节器下方链接的管路,软的就是回油管。

回流管的作用:当输油泵提供的燃油压力超过100~150千帕时,燃油滤清器上回油管路中的溢流阀开启,将多余的燃油经过回油管流回燃油箱。

扩展资料:

为了克服燃油在低压油路中流动的阻力,保证对喷油泵和喷油器的燃油供给,柴油机对输油泵供给的燃油压力有一定的要求。大多数多缸柴油机使用的柱塞式喷油泵体上方低压腔室两端,分别设置有进油管街头和回油接头,并在回油接头中装有溢流阀。

当喷油泵体内低压强势内的燃油压力低于50~60千帕时,溢流阀关闭,喷油泵回油管内没有燃油流动;当喷油泵体内低压腔室的燃油压力高于50~60千帕时,溢流阀打开,使部分燃油经过回油管路汇通喷油器回油管路一起流回燃油箱或燃油粗滤器的进油口接口。

从而使喷油泵体内低压腔室维持规定的油压。导出多余的燃油喷油器上的回油管属于这种情况。从设计上讲,输油泵输送的燃油数量无法做到定量所需,一般要多余喷油泵的需要量。再者,尽管喷油器针阀偶件制造非常精密。

为保证喷油,但还存在细微的配合间隙,喷油器工作时,从针阀与针阀体之间、针阀体上端面与喷油器体下端面之间难免有燃油泄漏,这些燃油一旦在喷油器内腔越积越多,当油压达到一定程度时,会造成针阀升起困难、无规律喷油甚至卡死针阀。

设置回油管并导出多余的燃油后,就能消除上述不良现象,确保柴油机正常工作。

参考链接:百度百科--回油管

回答2:

汽车的发动机分为汽油机和柴油机。汽油机有两种,一种是有回油管另一种没有回油管。油压调节器下方链接的管路,软的就是回油管。

扩展资料:

在汽车发动机上,回油管是一种不起眼的零件,但它对保证发动机正常工作起着重要作用。回油管在汽车上的布置比较特殊,如果回油管发生泄漏或堵塞,将引起种种意想不到的故障。回油管是排除发动机故障的一个“窗口”,通过回油管可以巧妙地检查、判断发动机的不少故障,其基本检查方法如下:拆开回油管检查,快速判断燃油系统的工作状况要想了解电喷发动机燃油系统的燃油压力是否正常,在没有燃油压力表或燃油压力表接入燃油管路有困难的情况下,可通过观察回油管的回油情况间接地加以判断。

参考资料来源:百度百科——回油管

回答3:

回油管找油压调节器下方链接的管路就是回油管;用手使劲捏,较软的为回油管;

回答4:

燃油滤清器两端的管路,其中一根是从燃油箱出来到滤清器,另一根是从滤清器出来通过三通一端连接油箱而另一端连接发动机。后面的那一根连接油箱的就是“回油管”。
若是听不懂,那么就看燃油泵上面的标示,燃油泵出来有两根管子,一个在燃油泵上画的标示是朝向外的,另一个是朝向里面的,朝向里面的就是回油管

回答5:

1、汽车分为汽油机和柴油机,就拿汽油机来说吧,汽油机分为有回油管和无回油管两种;
2、现在大多都是无回油管的;
3、看回油管找油压调节器下方链接的管路就是回油管;
4、用手使劲捏,较软的为回油管;
5、不连汽滤的为回油管;
6、回油管几乎无压力。
希望可以帮助你,谢谢!

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