Surging of turbocharger

Surging of the turbocharger can occur with certain engine operating states, such as rapid load removal or while maneuvering. The direction of flow in the compressor is then briefly reversed. However, sporadic surging of this kind does not generally affect the safe operation of the turbocharger.

Prolonged or periodic surging If surging is prolonged or occurs periodically, the following components may be damaged:
- Compressor wheel (vibration fractures) 
- Turbine blades (cracks)
- Bearing (overheating)
- Filter silencer 

Action to be taken: The operating safety of the turbocharger is no longer ensured with continuous or periodically recurring surging. The operator must take immediate steps to correct the surging. The components listed above must be inspected for damage by TC specialist, and replaced in cases of doubt.
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