Turbocharger And Exhaust Manifold - Detroit Diesel MBE 900 Technician Manual

COMPONENTS PRELIMINARY
2.2.1

TURBOCHARGER AND EXHAUST MANIFOLD

The turbocharger used on the MBE 906 and 926 engines features an asymmetrically split
double-flow turbine housing. The exhaust manifold on these engines is designed so that exhaust
flow from cylinders #1 through #3 is collected separately from exhaust gases for cylinders #4
through #6. The flow from each set of cylinders enters the turbine housing through separate inlets
having different flow areas. The smaller inlet, receiving flow from cylinders #1 to #3, causes
higher exhaust back pressure increasing the pressure differential driving EGR flow into the
intake manifold. See Figure 2-14.
1. EGR Outlet
Figure 2-14 EGR Exhaust Manifold for MBE 906 and 926 Engines
2-20
All information subject to change without notice. (Rev. 5/05)
7SE940 0505 Copyright © 2005 DETROIT DIESEL CORPORATION