What is the reason for the 500 hours atomization of Jichai 190 generator set

1. Fuel injection pressure. The greater the injection pressure of the fuel, the greater the initial velocity of the fuel outflow, and the greater the degree of fuel disturbance in the nozzle and the compressed air resistance after flowing out of the nozzle, so as to improve the fineness and uniformity of atomization, that is, atomization. When the injection pressure increases, it also increases the range of the oil beam.

2. The compressed air in the cylinder is counter-pressurized. When the counterpressure of the compressed air in the cylinder increases, the density of the compressed air increases, causing the air resistance acting on the oil bundle to increase, so the fuel atomization is improved, the spray cone angle increases, and the range decreases. In non-supercharged diesel generators, the backpressure of the compressed air in the cylinder does not change much, so the effect on the oil bundle characteristics is not significant.

3. Shape and speed of the cam of the fuel injection pump. When the cam profile is steep or the camshaft speed is high, the plunger of the fuel injection pump is supplied faster. Due to the throttling of the injector nozzle, the fuel cannot flow out quickly, and as a result, the fuel pressure in the oil pipe increases, and the speed of fuel flowing out of the nozzle also increases, so the atomization becomes better, and the range of the oil beam and the spray cone angle are increased.

4. Fuel viscosity. When the viscosity of the fuel increases, the oil particles are not easy to disperse into fine droplets, so that the atomization is poor. Therefore, high-speed diesel generators generally use light diesel oil with low viscosity as fuel.

Adjust the oil supply advance angle; Clean the injector injector nozzle.

There are several situations of normal oil loss: 1. When the engine is running, a layer of oil film will be attached to the inner wall of the cylinder to reduce friction resistance, but in the combustion process of mixed gas, this part of the oil film will be burned together with the gas of high temperature combustion, resulting in loss. 2. In addition to lubricating the piston, the oil is also used to lubricate the intake valve, exhaust valve and other parts, in the engine inhalation process, it is inevitable that part of the oil will be sucked into the combustion chamber, and in the exhaust process, the high-temperature exhaust gas will also consume part of the oil at the exhaust valve.

3. Due to high-temperature oxidation, the oil will produce steam and be sucked to the combustion chamber through the crankcase forced ventilation valve for combustion, which is especially obvious in engines with turbocharging. 4. The piston cylinder wall is damaged, resulting in too large a gap between the two, so that the oil "has a chance" to enter the combustion chamber. 5. Carbon deposition in the engine due to oil and other reasons, the piston ring loses its elasticity, resulting in poor sealing effect or accelerated cylinder wall wear, and the oil decreases rapidly.

6. The valve oil seal is aging and wearing, and it is impossible to achieve a good sealing effect, especially when the engine is not running for a long time, the oil is easy to enter the cylinder from the gap of the oil seal due to gravity, resulting in the phenomenon of burning engine oil during ignition.

The reduction of oil volume caused by the first three reasons is normal, and the latter three situations are not normal, and the rapid reduction of engine oil caused by it has become what we often call "burning engine oil".

Hazards of burning engine oil.

The harm of burning the engine oil air width is not only to consume more oil, due to the excessive oil to participate in the combustion, the possibility of incomplete combustion of the combustion chamber will also increase, and it is easier to form carbon deposits and exceed the emission standard. In addition, the engine power, noise, fuel consumption and other aspects will also be affected, in the process of driving, there will be unstable idling, acceleration fatigue and other syndromes, but also accelerate the damage of the oxygen sensor, causing the blockage of the three-way catalytic converter.

The carbon deposition caused by burning engine oil will accumulate in the piston ring groove, and for a long time, it is easy to cause the piston ring to get stuck, so that the piston ring loses the effect of oil scraping, and increases the probability of oil entering the combustion chamber. In addition, the stuck piston ring may also lead to accelerated wear of the piston and cylinder wall, resulting in poor piston sealing, laying the groundwork for burning engine oil, falling into a rotten cycle, and even pulling the cylinder and scrapping the engine in serious cases.

Judgment method: Once started, you can see blue smoke, at this time the engine oil burning situation is quite serious, and there may even be potential safety hazards.

Dou Mingliang Cause analysis: The engine is seriously worn, resulting in poor sealing, which provides favorable conditions for burning engine oil. At this time, it must be urgently repaired to avoid more serious failures and damages.

It may be that the valve seal is not good, and there is an air leak.

Observe if the engine is emitting white smoke?

Check if the oil level of the oil pan has increased?

The above speculation is that the cylinder gasket is suspected to be in a semi-flushed state, and the cooling water is connected to the cylinder, but it is not very serious.

There are also other related causes, such as microscopic cracks in the cylinder head, cylinder liner or trachoma, which can also lead to increased cooling water consumption.

There are small leaks in the water pipe joints, the body, the water tank, etc., the machine temperature is high, and it is not easy to be found because it evaporates at any time.

The cooling water itself has a natural consumption.

If there is no above speculation, the diesel engine can continue to run and use, but it needs to be replenished in time.

The above opinions are for reference.

1. All oil coolers are oil coolers. The effect is to reduce the oil temperature to maintain the performance of the oil. The lubricator is when the diesel engine is started, the compressed gas passes through the lubricator and atomizes the oil in the oil cup of the lubricator.

Atomize the oil and mix it into the compressed air. Lubricates.

Has it been repaired in the disassembly, it may be that the ignition time and valve are not adjusted well, the diesel filter element is blocked without dismantling, and the oil has not gone to these 6 cylinders, Yingtai Electric Diesel Generator Company will answer for you.

Is the exhaust pipe on one side cool?

Check the intake filter, fuel injection gun, and supercharger on the non-working side. The most suspicious injection gun.

Try checking the ignition system wires for contact.

Unilateral workmanship, the gas is not adjusted well or, there is a problem with the ignition of this row.

The oil cooler is the oil cooler. The effect is to reduce the oil temperature to maintain the performance of the oil. The lubricator is when the diesel engine is started, the compressed gas passes through the lubricator and atomizes the oil in the oil cup of the lubricator of the pants spring.

The atomized oil is mixed into the compressed air of the forest roller. Lubricates.

I didn't understand what you were talking about.