http://www.etrucker.com/apps/news/article.asp?id=64078
Quote:
At the rated engine speed of the DD15, the turbine reaches a rotation speed of more than 40,000 rpm. Power is transferred to the gear drive, and therefore to the crankshaft, via a shaft and a hydrodynamic coupling. This arrangement produces a uniform and smooth crankshaft rotation despite the higher torque, according to the company; additionally, fuel consumption is reduced by up to 5 percent compared with a similarly spec'd Series 60.
http://www.detroitdiesel.com/pdf/eng...5-brochure.pdfAt the rated engine speed of the DD15, the turbine reaches a rotation speed of more than 40,000 rpm. Power is transferred to the gear drive, and therefore to the crankshaft, via a shaft and a hydrodynamic coupling. This arrangement produces a uniform and smooth crankshaft rotation despite the higher torque, according to the company; additionally, fuel consumption is reduced by up to 5 percent compared with a similarly spec'd Series 60.
page 6, the sort of "half turbo" looking thing is the turbo compound unit. It directly attaches to the rear gear train.
