Why does the high pressure oil pipe of the diesel generator set break

It should be related to the quality of the return line, the working condition of the oil head, and the oil block spring of the one-way seat of the diesel filter. According to the situation you reflect, it is unlikely that it is a quality problem of the oil return pipe, because the frequent cracking basically excludes the quality problem of the oil return pipe, and according to the common sense of life, it is impossible to have a quality problem every time. In this case, it should be checked whether there is any debris in the oil return hole at the joint between the fuel injection body assembly and the diesel filter and the oil return pipe.

If there is debris blockage, it should be cleaned up in time. In addition, the cracked diesel return pipe is also related to the diesel filter. Single-cylinder diesel engine diesel filters are generally divided into two types: C0506 and C0506C, and there are more C0506C types of faults, which are related to their structure.

The rod nut of this type of filter is integrated with the one-way valve seat of the oil return pipe, and the rod nut should be removed first to see if there is a blockage at the small oil return hole under the nut. The method is to look inward through a small hole to look inward at the spring that supports the steel ball. If the spring cannot be seen, it means that the oil plug screw is too tight, and it should be loosened until the spring is exposed, and the spring jacking force at this time meets the requirements, and the oil flow channel is unimpeded.

Even if some oil plugs are hollow in the middle, and the return oil is directly returned to the diesel filter from the oil plug, the spring should be loosened to this position, so as to avoid too much resistance from the steel ball to the return oil flow due to excessive spring jacking force, and increase the chance of damage to the aging oil return pipe. In addition to the above, it is also necessary to check whether the working condition of the fuel injector is normal in time. If there is too much oil return from the oil nozzle during work, it means that the pressure of the oil head needs to be adjusted due to long-term use, otherwise, not only will the diesel fuel be wasted, but also the steel ball that closes the oil flow will not be released in time under the top force of the spring due to too much oil return, which will increase the pressure of the oil return pipe and cause the oil return pipe to crack and fail.

Causes of high-pressure oil pipe breakage of diesel generator sets:

1. The fracture of the high-pressure tubing is related to the quality of the high-pressure tubing and the assembly method when installing the high-pressure tubing.

2. The fracture of the high-pressure oil pipe has a certain relationship with the poor unloading of the oil outlet valve. The oil outlet valve is not well sealed or unloaded, and the residual pressure of the high-pressure tubing accumulates for a long time to form high pressure in the tubing, resulting in fatigue damage or cracks in the high-pressure tubing.

3. If the high-pressure fuel pipe of the diesel engine is broken, first check whether the injector is stuck, if the fuel injector is stuck in the operation of the engine, the plunger is still continuing to inject fuel upward, the pressure of the high-pressure oil pipe is limited, and the high-pressure oil pipe will break if it is subjected to this pressure for a long time.

4. The broken high-pressure oil pipe is also related to the vibration of the diesel engine. The two ends of the high-pressure oil pipe are fixed by the nut, and the middle is only supported by an iron fulcrum of the oil pipe clamp, and the vibration of the diesel engine will cause the oil pipe to break the oil pipe, and it is useless to replace the high-pressure oil pipe like this, and the vibration of the diesel engine must be solved before it can be replaced.

The solution to the fracture of the high-pressure oil pipe of the diesel generator set:

1. Especially when assembling the high-pressure pipe, it should be noted that if the angle does not match the large difference, the pressure concentration will be formed at the connection of the tubing, which will also cause the fracture of the tubing at the joint.

2. Changing an oil outlet valve can solve the problem.

3. As soon as you check the disassembly and assembly of the injector, you will know that the problem will be solved by replacing the injector.

This is provided by Huaquan Power Group.

Report. Yanan Electric Group YN

From the Sesame Group of Science and Education 2016-10-05

1. The fracture of the high-pressure tubing is related to the quality of the high-pressure tubing and the assembly method when installing the high-pressure tubing. Especially when assembling high-pressure pipes, if the angle does not match the difference is large, the pressure concentration will be formed at the connection of the tubing, which will also cause the tubing at the joint to break.

2. The fracture of the high-pressure oil pipe has a certain relationship with the poor unloading of the oil outlet valve. The oil outlet valve is not well sealed or unloaded, and the residual pressure of the high-pressure tubing accumulates for a long time to form high pressure in the tubing, resulting in fatigue damage or cracks in the high-pressure tubing. In this case, a new outlet valve can solve the problem.

3. If the high-pressure fuel pipe of the diesel engine is broken, first check whether the injector is stuck, if the fuel injector is stuck in the operation of the engine, the plunger is still continuing to inject fuel upward, the pressure of the high-pressure oil pipe is limited, and the high-pressure oil pipe will break if it is subjected to this pressure for a long time. This phenomenon should be eliminated by everyone, and you will know when you disassemble and assemble the injector as soon as you check it, and replace the injector and the problem will be solved.

4. The broken high-pressure oil pipe is also related to the vibration of the diesel engine. The two ends of the high-pressure oil pipe are fixed by the nut, and the middle is only supported by an iron fulcrum of the oil pipe clamp, and the oil pipe is broken by the resonance of the oil pipe caused by the vibration of the unit, and it is useless to replace the high-pressure oil pipe like this, and it can only be replaced after solving the vibration of the diesel engine.

When repairing a car, it is common to find some.

The high-pressure oil pipe of the DU diesel engine is broken.

zhi.Carefully observe the faults of dozens of high-pressure oil pipe breaks, and find that the main internal reasons are: (1) The two ends of the high-pressure oil pipe and the injector joint and the oil injection pump are not installed in the right position, and the high-pressure oil pipe is twisted and deformed after tightening the nuts at both ends of the high-pressure oil pipe.

After the diesel engine starts, the high-pressure oil pipe breaks due to vibration.

The high-pressure oil pipe keeps bursting, what's going on?

The reason why the high-pressure oil pipe of the diesel generator does not supply oil? Hello dear! 1. Check whether there is air in the oil circuit, and the air needs to be carefully checked.

2. Whether the governor is faulty, its function is to automatically adjust the fuel supply according to the speed of the engine. If it fails, the oil supply will be stopped instantaneously, causing the flame to stall. 3. Check the macro to test whether the plug of the oil pump is electric, if there is, the oil pump does not rotate, the oil pump is damaged, if not, it is a line problem.

4. The shielded injector can measure the resistance of the two wires of the injector, if the resistance value is infinity, it means that the injector is damaged. Hope it helps!

Caused by unqualified quality or aging because it is not a high-pressure pipe.

I bought a new tricycle back back to the oil pipe broken four times, the seller of the three wheels said to change the bottle, the bottle tube, now the back pipe is broken again, this time and said to change the fuel injector assembly, I don't know if it's right.

When repairing the car, it is often found that some diesel engine high-pressure oil pipes are broken. Carefully observe the faults of dozens of high-pressure oil pipe breaks, and find that the main reasons are: (1) The two ends of the high-pressure oil pipe are not installed in the right position with the injector joint and the oil injection valve of the fuel injection pump, and the high-pressure oil pipe is twisted and deformed after tightening the nuts at both ends of the high-pressure oil pipe.

After the diesel engine starts, the high-pressure oil pipe breaks due to vibration.

Hello Answer! Frequent bursting of high-pressure oil pipes in diesel engines is usually caused by excessive pressure inside the high-pressure oil pipes. Because the injection pressure of the injector is too high, or the needle valve of the injector burns to death. will cause the pressure in the high-pressure oil duct to be too high.

Hope it helps

Question: What is the reason why high-pressure oil pipes are often broken and cannot be replaced?

The biggest possibility of oil leakage from high-pressure oil pipe is that there is a problem with the seal, and then it should be checked whether the pressure of the local answer part is too high, resulting in the failure of the seal.

1. The cracking or fracture of the oil pipe joint presents the phenomenon of oil leakage, which is generally easier to break than the high-pressure oil pipes of diesel engine I and VI cylinders than other cylinders. In addition to the quality of the tubing itself, scaffolding, formwork repair machine, welding equipment, bending machine, elevator and accessories, building electrical equipment, testing instruments, etc.; Missing and fixing high-pressure tubing clamps, or fitting them in improper locations.

2. Some customers do not pay attention to protection and maintenance when using diesel generators, which is bound to cause some unnecessary damage to diesel generators. There is also no good guarantee for the life of diesel generators. Therefore, we should pay attention to check the depreciation of the diesel generator after work, so that the problem can be repaired and replaced as soon as possible, so as to make the use of the diesel generator better and the service life longer.