Excuse me, how much does it cost to repair the turbocharged engine if it breaks down?

Is your engine broken or the supercharger broken? The supercharger is broken, usually 7000. The main function of supercharger is to supercharge the intake of engine with the exhaust gas of engine. There is no independent production of supercharger in China, which is generally foreign technology, so it is more expensive. This technology is not patented in our country, and the turbine rotates after tens of thousands of revolutions, and the lubricating oil is unqualified, let alone other institutions. Turbocharger is an important component to improve engine power and reduce exhaust emissions. Due to improper use, maintenance and maintenance, it is easy to break down, resulting in the engine can not work normally. In this paper, some common faults and treatment methods of turbocharger are introduced as follows: 1 oil leakage of turbocharger 1: The oil consumption is large, but the exhaust smoke is normal and the power is not reduced. Cause: This situation is generally caused by oil leakage. Treatment: (1) First, check whether the external oil pipes of the engine lubrication system (including the oil inlet pipe and oil return pipe of the supercharger) leak oil; (2) Check whether there is engine oil at the supercharger exhaust port. If there is engine oil, it can be judged that the sealing ring at one end of the turbine is damaged, and this sealing ring should be replaced. Phenomenon 2: the fuel consumption is high, and the tail gas emits blue smoke, but the power is not reduced. Cause: The engine oil leaked from the compressor end of the supercharger, and the engine oil entered the combustion chamber for combustion through the engine intake pipe. There are the following possibilities: (1) The oil return pipe of the supercharger is not smooth, and the oil accumulates in the middle support of the rotor assembly and flows into the compressor impeller along the rotor shaft. (2) After the sealing ring or oil slinger near one end of the compressor impeller is damaged, the engine oil enters the impeller chamber, and then enters the combustion chamber together with the indoor pressurized air through the intake pipe. Treatment: (1) Open the air outlet of the compressor or the straight intake pipe (rubber hose) of the engine to see if the nozzle and pipe wall are stuck with engine oil. If yes, please check whether the oil return pipe of the supercharger is unblocked. If it is not smooth, it is caused by excessive oil accumulation in the middle bracket, so the oil return pipe should be dredged and reassembled. (2) If it is unblocked, it is caused by the damage of the sealing ring or oil slinger at one end of the impeller, and the supercharger should be disassembled for repair. Phenomenon 3: The fuel consumption is high, the tail gas emits blue smoke or black smoke, and the power decreases. Cause: (1) The clearance between the piston and the cylinder is too large, and the oil escapes into the combustion chamber and is burned. (2) When the supercharger sucks air, the air flow encounters great resistance. (For example, the air filter element is blocked, the air inlet hose is deformed or sucked flat, etc. ), and the air inlet pressure of the compressor is low, which causes the oil to leak into the compressor and enter the combustion chamber for combustion together with compressed air. Treatment method: (1) Check whether there is engine oil on the pipe wall of the straight intake hose, and whether it is squashed, so that the airflow is blocked or the empty filter element is blocked. (2) If there is engine oil on the nozzle and wall, clean or replace the air filter element. Metal rubbing sound: black smoke from exhaust, power drop, abnormal sound from supercharger. Cause: (1) If there is metal rubbing sound, it is caused by excessive wear of the rotor bearing or thrust bearing of the supercharger and the friction between the impeller and the supercharger housing. (2) If it is not the metal rubbing sound, but the air flow sound, it is the rotating sound generated by the high-speed rotation of the supercharger rotor, or the air leakage phenomenon caused by the poor connection of the intake and exhaust interfaces. Disposal: (1) The former should be repaired by replacing the damaged spare parts according to the wear condition. (2) The latter should be carefully distinguished and targeted. 3 supercharger bearing damage phenomenon: supercharger bearing damage, engine power decline, high oil consumption, black smoke, serious when the supercharger can not work. Cause: (1) Insufficient pressure and flow of lubricating oil. A. The lubricating oil supply of the journal and thrust bearing of the supercharger is insufficient; B. Insufficient lubricating oil to keep the rotor journal and bearing floating; C supercharger has been running at high speed, but lubricating oil has not been supplied in time. (2) sundries or sediments enter the lubrication system. (3) Oxidation deterioration of engine oil. A. Diesel engine oil is overheated, and too much gas escapes between the piston and the cylinder wall; B. cooling water leaks into engine oil; C improper selection of engine oil, failure to change engine oil regularly as required. Treatment method: (1) Check whether the lubricating oil pressure is normal and the oil quantity meets the requirements. (2) Replace the lubricating oil regularly as required to ensure that the lubricating oil is clean. (3) Use lubricating oil in strict accordance with the specified requirements, and do not mix them. (4) Avoid the engine working at high temperature and keep the normal working temperature of the engine.