(Reproduced)Imported turbocharger works

Import turbocharger speed side of the engine in the exhaust , the high operating temperature of the turbocharger , turbocharger and import speed of the rotor during operation is very high , up to hundreds of thousands of revolutions per minute , so that a high mechanical and temperature such that the common roller or ball bearings for the rotor will not work , thus the turbocharger generally used full floating bearing to be lubricated by the oil , there is a coolant for cooling the turbocharger . Previously, mostly imported turbocharger used on diesel engines, since combustion of gasoline and diesel are not the same , so the engine turbocharger imported form is also somewhat different .(nissan turbocharger)
For low- turbocharged diesel engine , should be used no less than the CD grade diesel oil ; For the turbocharged diesel engine , should be used no less than the CE grade diesel oil . Followed by diesel oil viscosity grade should be based on the appropriate choice of viscosity grades temperature conditions , parts wear conditions. For example, the various series of diesel engine when the temperature is higher than -5 ℃, the choice of viscosity grades 15W-40, when the temperature is below -5 ℃, the choice of viscosity grades 10W-30; Once again, the cleanliness of diesel oil because with the turbocharger rotor shaft and bearing between the more sophisticated, if the oil is too dirty or bad, will accelerate bearing wear . Excessive wear of the blade when the bearing friction and the case will even occur , so that the rotor speed down , turbocharger and engine performance will deteriorate rapidly : as power down, smoke too much, big noise and rotor shaft at both ends of the oil spill and so on. Therefore, provisions should be strictly in accordance with the maintenance regularly change the oil regularly clean or replace the oil filter .(renault turbo)
Import booster channel direct consequence of the system factors blocking the flow obstruction turbocharger is increased airflow resistance in the system . Engine running, the gas flow path pressurization system are: the compressor inlet filter and silencer → → Compressor compressor impeller diffuser air cooler → → → Diesel tank scavenging air inlet ( valve ) → exhaust port ( valve ) → → gas turbine exhaust nozzle ring → → chimney exhaust turbine wheel . Wherein the flow area of the components are fixed. If any of the above flow route links clogging , such as dirt, carbon knot , deformation , etc., will make the compressor due to increased flow resistance back pressure, flow reduction caused by the surge . Which is easy to dirty parts are the compressor inlet filter , compressor impeller and diffuser , air coolers, engine intake ( sweep ) air intake and exhaust ports ( valves ) , gas turbine nozzle ring , gas turbine impeller.(peugeot turbo)

The article source， read more…