Patent ID: 8959913
Filing Date: 2015-02-24
Classification: F01N,F02B,F17D,Y02T

Abstract:
1. A turbocharger system, comprising: a first turbine having a first connecting region at an exhaust flow outlet, the exhaust flow outlet positioned to direct exhaust flow in a first direction; a second turbine having a second connecting region at an exhaust flow inlet, the exhaust flow inlet positioned to intake exhaust flow in a second direction, opposite the first direction; and a transition conduit having a first end connected to the first connecting region of the first turbine and a second end connected to the second connecting region of the second turbine to fluidically couple the exhaust flow outlet of the first turbine to the exhaust flow inlet of the second turbine, the transition conduit including a first bend downstream of the exhaust flow outlet of the first turbine and an expansion region upstream of the first bend, the expansion region comprising a region of the transition conduit that increases in cross-sectional area with a conical divergence angle of between 10 and 15 degrees along a direction of exhaust flow from the first end of the transition conduit and prior to the first bend, the transition conduit connected to the exhaust flow outlet of the first turbine at the first end.