Operation Manual / TPS44-F.. - TPS61-F.. 
 
 
Use of ABB turbochargers on gas 
engines
 
  Page 31
 
 
April 2015 HZTL2412_EN Revision E 
Use of ABB turbochargers on gas engines 
2.8 
ABB turbochargers can withstand a deflagration with a transient pressure 
increase of 12 bar. A maximum of 11 bar has been measured during 
deflagration trials on engines with flame traps. The practical operating 
experience of well-known manufacturers of gas engines reinforces this 
value. Damage to ABB turbochargers during deflagration events has not 
been determined in the past. 
ABB Turbo Systems recommends that, following a deflagration event, the 
turbocharger undergo a visual inspection. Items to check during this 
inspection are the position of the turbine casing, of the compressor casing 
to the bearing casing as well as a shifting of the bearing casing in relation 
to the bracket. A crack inspection of the casing is also recommended. The 
nearest ABB Turbocharging Service Station should be commissioned with 
this inspection and assessment. 
 
 
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