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当我们下乡检修195型柴油机时,经常发生机器修好后,起动不起来。检查起动、供给系统,没有问题,后来发现是一小孔在作怪。原来在195柴油机的涡流室镶块上,除了有一个与主燃烧室连接的通道(主喷孔)外,还有一个圆锥形小孔(见图示),我们称它为起动小孔,这个小孔正对喷油器的喷雾方向,在手摇起动柴油机时,转速较低,喷油器喷出的油雾,有一部分可以穿过起动小孔,
When we went to the countryside overhaul 195 diesel engine, it often happens after the machine repaired, can not start up. Check the start, supply system, no problem, and later found to be a hole in trouble. In the original 195 diesel engine vortex chamber inserts, in addition to a channel connected to the main combustion chamber (the main nozzle), there is a conical hole (see picture), we call it the starting hole, this Small hole is the direction of the injector spray, starting the diesel engine in hand, the lower speed, the fuel injector spray mist, there are some can pass through the starting hole,