What is the reason for the sudden flameout of the diesel generator set during operation

What is the reason for the sudden flameout of the diesel generator set during operation?

What is the reason for the sudden flameout of the diesel generator set during operation?

1. There are four reasons why the diesel generator set suddenly stalls during operation:
2. The fuel injection pump drive tooth is broken and the transmission gear is faulty.
3. The fuel injection pump shaft is broken.
4. The moving parts inside the diesel generator set are stuck.
5. The fuel injection pump control rod and connecting pin fell off.
6. Diagnosis and treatment methods
7. Use the starter to drive the diesel generator set. If it can rotate normally, observe whether the camshaft of the fuel injection pump rotates. If it rotates normally, it means the fuel injection pump is faulty. Check whether the operating mechanism is working properly. You can pull the throttle lever to check whether the connection between the control arm and the control shaft is good.
8. If the camshaft of the fuel injection pump does not rotate, the camshaft gear fastening bolt is loose, the camshaft is broken, or the gear in the gear chamber is faulty.
9. If the starter drives the diesel generator set and cannot run, it means there is an internal fault in the diesel generator set. For example, the piston and cylinder are stuck, the crankshaft and bearings are stuck, the fuel injection pump plunger is stuck, and the valve mechanism is mechanically faulty. Under normal circumstances, the valve cover should be opened first for inspection. If the instrument reflects that the oil pressure is too low or the temperature is too high during execution, it is necessary to directly perform maintenance based on the specific situation.

What is the reason why the 40ke diesel generator set suddenly stalls?The sudden flameout of the 40ke diesel generator set was mainly caused by the fuel injection pump failure, and secondly by the internal jamming of the engine. When encountering this phenomenon, first check whether the fuel injection pump is rotating and supplying fuel.

1. Use the starter to drive the engine. If it can rotate normally, observe whether the camshaft of the fuel injection pump rotates. If it rotates normally, it means the fuel injection pump is faulty. Check whether the operating mechanism is working properly. You can pull the throttle lever to check whether the connection between the control arm and the control shaft is good.
2. If the camshaft of the fuel injection pump does not rotate, the camshaft gear fastening bolt is loose, the camshaft is broken, or the gear in the gear chamber is faulty.
3. If the starter cannot drive the engine to run, it means there is an internal engine failure. For example, the piston and cylinder are stuck, the crankshaft and bearings are stuck, the fuel injection pump plunger is stuck, and the valve mechanism is mechanically faulty. Under normal circumstances, the valve cover should be opened first for inspection. If the instrument reflects that the oil pressure is too low or the temperature is too high during execution, it is necessary to directly perform maintenance based on the specific situation.

How to deal with sudden flameout of 100kw diesel generator set during operation?There are three ways to deal with the sudden flameout of the 100kw diesel generator set during operation:

1. Use the starter to drive the engine. If it can rotate normally, observe whether the camshaft of the fuel injection pump rotates. If it rotates normally, it means the fuel injection pump is faulty. Check whether the operating mechanism is working properly. You can pull the throttle lever to check whether the connection between the control arm and the control shaft is good.
2. If the camshaft of the fuel injection pump does not rotate, the camshaft gear fastening bolt is loose, the camshaft is broken, or the gear in the gear chamber is faulty.
3. If the starter cannot drive the engine to run, it means there is an internal engine failure. For example, the piston and cylinder are stuck, the crankshaft and bearings are stuck, the fuel injection pump plunger is stuck, and the valve mechanism is mechanically faulty. Under normal circumstances, the valve cover should be opened first for inspection. If the instrument reflects that the oil pressure is too low or the temperature is too high during execution, it is necessary to directly perform maintenance based on the specific situation.

Reasons why the diesel generator set automatically stalls

There are many reasons why the diesel generator set automatically stalls, but there are two main reasons. One is the interruption of fuel supply; the other is the obstruction of moving parts.

During normal operation, if the rotational speed gradually slows down, the bursting sound gradually weakens, the water temperature, oil temperature, and pressure are all normal, and pushing the accelerator has no effect, and the engine gradually turns off after a period of time, and the flywheel can be turned with a screwdriver after parking, it means that it is Fuel supply is poor or interrupted.

During operation, the oil pressure is normal, but the oil temperature is high, the water temperature is increased, and there is a smell of paint. There is little or no water coming out of the cooling water outlet, and steam comes out. The machine runs hard and makes rough noises. There is a cylinder pull when approaching the stop. There is a sound, and the speed gradually decreases. When finally parking, it is difficult for the flywheel to rotate forward and reverse, and the disc does not move the flywheel after parking. After the machine temperature drops, the flywheel can rotate again. Based on this, it can be judged that the piston is seized.

During operation, the water temperature is normal, the oil pressure drops, the oil temperature rises, there are metal shavings in the oil, the smell of burnt oil, the machine vibration intensifies, the sound is abnormal, the speed gradually decreases, the inertial rotation time is short when parking, and the machine stops. If the flywheel does not move on the rear disc, and the flywheel still does not move after the machine cools down, it can be determined that the spindle is burning, also known as shaft holding.

The reasons why the diesel generator set automatically stalls are as follows:1. The fuel injection pump cannot work properly, causing the oil system to malfunction, resulting in flameout.

2. The crankshaft cannot rotate after parking, and the engine is stuck between the piston and the cylinder, or between the crankshaft diameter and the bearing bush, and the fuel injector nozzle and sheath are melted. The working environment of diesel engine injectors is relatively harsh. They are often exposed to high-temperature and high-pressure gas, and are subject to alternating hot and cold thermal loads and alternating fuel loads.
3. Poor atomization during long-term idling operation, causing carbon deposits to form on the fuel injector. The heat dissipation condition deteriorates. In severe cases, the nozzle holes will be blocked and oil dripping will occur. The fuel will burn and absorb heat for a long time on the head of the injector, causing the injector and sheath to melt.
4. The fuel is not clean, causing the nozzle and sheath to melt.
5. The assembly is not installed properly, resulting in a gap between the fuel injection head and the heat insulation sleeve, and the fuel is not clean, resulting in burning.
6. When the engine is running at high temperature, there is a lack of coolant, causing the area to overheat and melt.

What is the reason for the sudden flameout of the 350kw diesel generator set?

The possible reasons for the sudden flameout of the diesel generator set are as follows:

1. The fuel injection pump drive tooth is broken, the transmission gear or the camshaft is faulty;
2. The fuel injection pump shaft is broken;
3. The moving parts inside the engine are stuck;
4. The air filter is clogged, causing insufficient air intake of the diesel engine;
5. There is air in the oil circuit or the interface of each oil circuit is loose, causing oil leakage;
6. The injection hole of the fuel injector is blocked or the needle valve is stuck;
7. The oil pump is faulty;
8. The oil line or oil inlet filter is clogged;

What is the reason for the generator stalling during operation?

Reasons why the generator set stalls during operation:

1. If the camshaft of the fuel injection pump does not rotate, the camshaft gear fastening bolt is loose, the camshaft is broken, or the gear in the gear chamber is faulty.
2. Use the starter to drive the engine. If it can rotate normally, observe whether the camshaft of the fuel injection pump rotates. If it rotates normally, it means the fuel injection pump is faulty. Check whether the operating mechanism is working properly. You can pull the throttle lever to check whether the connection between the control arm and the control shaft is good.
3. If the small generator set cannot operate, it means there is an internal engine failure. For example, the piston and cylinder are stuck, the crankshaft and bearings are stuck, the fuel injection pump plunger is stuck, and the valve mechanism is mechanically faulty. Under normal circumstances, the valve cover should be opened first for inspection. If the instrument reflects that the oil pressure is too low or the temperature is too high during execution, it is necessary to directly perform maintenance based on the specific situation.

Reasons why small diesel generator sets automatically stall

During normal operation, if the rotational speed gradually slows down, the bursting sound gradually weakens, the water temperature, oil temperature, and pressure are all normal, and pushing the accelerator has no effect, and the engine gradually turns off after a period of time, and the flywheel can be turned with a screwdriver after parking, it means that it is Fuel supply is poor or interrupted.

During operation, the oil pressure is normal, but the oil temperature is high, the water temperature is increased, and there is a smell of paint. There is little or no water coming out of the cooling water outlet, and steam comes out. The machine runs hard and makes rough noises. There is a cylinder pull when approaching the stop. There is a sound, and the speed gradually decreases. When finally parking, it is difficult for the flywheel to rotate forward and reverse, and the disc does not move the flywheel after parking. After the machine temperature drops, the flywheel can rotate again. Based on this, it can be judged that the piston is seized.

During operation, the water temperature is normal, the oil pressure drops, the oil temperature rises, there are metal shavings in the oil, the smell of burnt oil, the machine vibration intensifies, the sound is abnormal, the speed gradually decreases, the inertial rotation time is short when parking, and the machine stops. If the flywheel does not move on the rear disc, and the flywheel still does not move after the machine cools down, it can be determined that the spindle is burning, also known as shaft holding.

What is the cause of oil leakage in diesel generator sets?There are three main reasons for oil leakage in diesel generator sets:

(For reference only: Fujian Yanan Motor’s answer)

1. The quality of the static joint surface of the diesel generator is mainly determined by the precision of the processing device itself and the storage and transportation conditions. If the device has high precision, the flatness and roughness of the static joint surface can meet the requirements of the drawing design, and there is no bump during storage and transportation, then the static joint surface is completely sealed. On the contrary, it will lead to incomplete sealing of the static joint surface and oil leakage.
2. Oil leakage at the static joint surface due to excessive oil pressure in the unit.
3. The quality of the cylinder head paper gasket does not meet the requirements, such as insufficient thickness, improper storage, wrinkles and deformation, or carelessness in cleaning during assembly, and dust and impurities, which are also causes of oil leakage.

To solve the problem of oil leakage in the unit, you need to do the following:

1. The use of sealing adhesive can seal, prevent leakage, fasten and plug gaps to prevent oil leakage.
2. During the disassembly process, a synchronous operation method should be adopted. If two people operate at the same time, try to tighten the bolts evenly.
3. Use pullers wherever possible to fundamentally solve synchronization problems.