Why The New Generator Supercharger Has A Short Life

The main function of the diesel generator supercharger is to pressurize the air into the large cylinder. This process is called supercharging. Four-stroke diesel engines mostly use exhaust gas turbochargers for supercharging, the purpose is to make full use of the energy of exhaust gas. This is because after the oil of a large diesel generator set is burned, the energy taken away from the exhaust is equivalent to 35%-40% of the heat energy developed by the fuel. This energy is further expanded in the turbine and used, which is equivalent to the recovery of diesel. Burning heat energy to achieve the purpose of supercharging. But why is the life of the newly replaced supercharger often short after the supercharger on some engines is damaged? There are three reasons.

1. The lubricating oil is not clean.

2. There are impurities in the oil passage.

3. Foreign matter in the intake and exhaust pipes.

Corresponding diagnosis and treatment methods.

1. Check whether the lubricating oil is clean. Because the speed of the supercharger is very high, the matching accuracy between the bearings is also very high, if the lubricating oil is not clean, the shaft of the new supercharger will be damaged quickly, so when replacing the new supercharger, replace the lubricating oil and engine oil. The filter is very important.

1. If the lubricating oil and the oil filter are replaced when the turbocharger is replaced, the service life of the turbocharger is still very short, it is caused by too many impurities in the oil passage, and the oil passage needs to be cleaned.

Please refer to the following cleaning method:

(1) Remove the broken turbocharger and drain the oil when the engine is warming up.

(2) Add a certain amount of mixed oil (30% engine oil + 70% diesel).

(3) Insert the oil inlet pipe of the turbocharger into the oil return pipe or seal the outlet of the oil inlet pipe.

(4) Start the engine, stop after idling for 1 to 2 minutes, drain the mixed oil (if it is dirty, it is better to clean it twice), the above work is carried out when the car is hot.

(5) Clean or replace the turbocharger oil inlet pipe, clean the oil pan, and replace the machine filter and air filter.

(6) Install a new turbocharger, and fill the oil inlet of the turbocharger with oil for prelubrication, then install it into the oil pipe, fill the filter with oil and install it, and finally install other pipes.

(7) Start the engine and increase the speed at idle for 3 to 5 minutes to check if there is any oil leakage.

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