VNT & mechanical compounding article from Cummins - FAQ/Tech Tips/Please Read First - VWDiesel.net The IDI, TDI, and mTDI source.

• VNT & mechanical compounding article from Cummins by blackdogvan on 21 Mar, 2009 13:33
• The Holsets work different from the Garretts, maybe a better vane system as far as not clogging up with carbon. No too advanced tech wise but a interesting read regardless. The mechanical compounding was new to me.
  
  http://www.diesel.org/UserFiles/File/Cummins%20Turbo%20Technologies%20at%20ADS%202007%20Mat%20Wilman%201.pdf