Patent ID: 9068474
Filing Date: 2015-06-30
Classification: F01D,F02B,F02C,F05D,Y02T

Abstract:
1. An internal combustion engine comprising: a first cylinder bank; a primary exhaust manifold for conveying exhaust gas produced in the first cylinder bank; and a primary turbine housing, the primary turbine housing comprising: a second cylinder bank; a second exhaust manifold for conveying exhaust gas produced in the second cylinder bank; a secondary turbine housing mechanically coupled to the second exhaust manifold; a first isolation valve disposed in the primary turbine housing to selectively regulate the amount of flow routed therethrough; and a second isolation valve disposed in the secondary turbine housing to selectively regulate the amount of flow routed therethrough; wherein the crossover duct provides fluid communication between the primary turbine housing and a secondary source of working fluid from the second exhaust manifold; wherein the primary turbine housing defines an inlet plenum, a turbine shroud, and a discharge vent; wherein the exhaust port flange defines a primary inlet port that is configured to provide fluid communication between the inlet plenum and the primary source of working fluid; wherein the primary inlet port is configured to convey a primary stream of the primary source of working fluid to the inlet plenum; and wherein the turbine shroud defines a fluid expansion flow path for expansion of the primary stream of working fluid between a turbine inlet and a turbine exit.