Cleaning the compressor (Turbocharger) during operation

These guidelines for wet cleaning apply exclusively for cleaning with clean water and are subject to permission for the procedure being obtained from the engine manufacturer.
The dirt in the compressor stage (compressor wheel and diffuser) depends on the cleanness of the air drawn in and the operating point.
A deposit of dirt in the flow ducts will be formed if the following substances are present in the intake air:
  • Oil or saline mist
  •  Solid combustion residues
  •  Dust of various kinds

Soiling of the compressor stage has a negative effect on compressor efficiency and charging pressure, particularly for smaller turbochargers.

This results in higher exhaust temperatures and increased fuel consumption by the engine. Contamination of the compressor also increases the rotor imbalance.

Periodic cleaning of the compressor in operation prevents or retards a severe increase in soiling, but in no way replaces the regular servicing work, during which the turbocharger is completely dismantled.

The interval between periodic cleaning depends in large measure on the operating conditions. In general, cleaning should be carried out every 25 to 100 operating hours.
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