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康明斯柴油发动机的柴油渗透到油底壳里的故障维修与排除

2013/3/31 14:14:57

康明斯柴油发动机的柴油渗透到油底壳里的故障维修与排除

 

柴油渗入到油底壳,这是非常有害的,它不仅降低油的粘度和机油压力,但也稀油中的各种添加剂内容。如果渗透能力,它甚至会导致轴承倦担在这里,我们介绍一些故障排除,例如康明斯发动机NT-855型。

  1. 康明斯柴油发动机PT燃油泵

  康明斯PT燃油泵有一个双磁和手动切断阀,点火开关打开时,磁性关闭阀门打开,油路连接点火开关处于关闭状态时,关闭阀门密封油路是关闭的。关闭阀门密封失败时,燃料会自动流进注射器通过关闭阀门,并渗透到油底壳通过燃烧室。此时,应拆除和更换密封件切断阀。

 

  2。康明斯柴油发动机喷油器

  喷油器的作用,是衡量燃料进入燃烧室,然后按。当过大或损伤,喷油嘴进入燃烧室的燃料将下降和停止状态下渗入到油底壳。此时,我们需要拆除和更换不正常的喷油器。如果失败,向上和向下的O形圈燃料将下降到阀室和通过密封燃烧室,进入油底壳。当时,应拆除和更换。

  3。康明斯柴油发动机油箱

  位于较高的位置PT燃油系统的油箱,必须有一个手动阀安装在油箱出口,以防止燃料通过浮子油箱和PT泵到喷油器,康明斯发动机关闭,阀门出现故障时,通过燃烧室的燃料会渗入油底壳。在这一点上,阀门应修理或更换。 

  4。康明斯柴油发动机浮罐

  必须有浮球阀和锥形阀安装在浮坦克将保持燃油水平,使燃料稳步。当浮球阀或锥阀处于关闭状态失败。通过浮箱,油箱将进入油底壳。在这一点上,浮阀或锥形阀应修理或更换。

Diesel Cummings diesel engine oil bottom shell penetrated into the fault exclusion

Diesel oil into the oil pan, which is very harmful, it not only reduce the viscosity and oil pressure oil, but also dilute various additives content in oil. If the infiltration capacity, it may even lead to bearing weariness. Here, we introduce some troubleshooting, such as the Cummings engine NT-855.

1 Cummings PT diesel engine fuel pump

Cummings PT fuel pump with a double magnetic and manual shut-off valve, when the ignition is switched on, the magnetic valve open, circuit connected with the ignition switched off, close the valve seal oil is closed. Close the valve seal failure, the fuel will automatically flow into the syringe by closing the valve, and penetrate into the oil sump through the combustion chamber. At this time, should be removed and replaced the seal off valve.

2. Cummings diesel engine fuel injector

Fuel injector, is a measure of fuel into the combustion chamber, and then press the. When is too large or damage, fuel injector into the combustion chamber of the fuel will drop and stop state into the oil pan. At this time, we need to remove and replace the fuel injector is not normal. If it fails, to the O ring fuel up and down will drop to the valve chamber and the combustion chamber is sealed, into the oil pan. At that time, should be removed and replaced.

3. Cummings diesel engine oil tank

Location of the PT fuel system in higher fuel tank, there must be a manual valve is installed in the tank outlet, in order to prevent the fuel tank and PT float through the pump to the fuel injectors, Cummins engine off, the valve failure, through the fuel combustion chamber will seep into the oil pan. At this point, the valve should be repaired or replaced.

4. Cummings diesel engine floating tank

There must be a floating ball valve and cone valve installation will maintain the fuel level in the float tank, fuel steadily. When the floating ball valve or cone valve in the closed state failure. Through the floating box, into the oil sump tank. At this point, the float valve or conical valve shall repair or replace.

Cummings PT fuel system return oil manifold equipped with a one-way valve, keep the fuel injector inlet pressure is stable, and the floating box injection, in order to prevent fuel. The check valve failure, which flows through the oil return manifold and fuel injector into the oil pan. At this point, the one-way valve should be carried out to repair and replacement.

 

  康明斯PT燃油系统的回油歧管配有一个单向阀,保持喷油器进油压力稳定,并通过浮箱喷油,以防止燃油。单向止回阀失败时,燃料将流过回油歧管和进样器进入油底壳。在这一点上,单向阀应进行维修和更换。

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