Turbocharger exhaust manifold with turbine bypass outlet

Abstract

An exhaust manifold for an internal combustion piston engine having a first row of at least two cylinders inclined relative to a vertical plane and a second row of at least two cylinders inclined relative to the vertical plane, where the two rows of cylinders form a V configuration with the vertical plane being approximately equidistant between the two rows. The exhaust manifold in one aspect comprises plural exhaust stack assemblies for receiving exhaust gas from the first row of cylinders, an elongate manifold plenum having a terminal portion defining an exhaust gas passageway, and an exhaust gas routing circuit joined to the manifold plenum. The routing circuit comprises a turbocharger support column and a bypass pipe. The turbocharger support column is joined at a first junction with the manifold plenum, extends in a generally perpendicular direction from the elongate manifold plenum and terminates in a first exhaust gas outlet adapted for connection to a turbocharger. The bypass pipe is joined at a second junction with the support column and terminates in a second exhaust gas outlet adapted for connection to an exhaust bypass valve. Each of the plural exhaust stack assemblies comprises a leader pipe and an exhaust connector, where a first end of each leader pipe is joined to a first end of the exhaust connector of the exhaust stack assembly, a second end of each exhaust connector is joined to the manifold plenum, a second end of each leader pipe is joined to a manifold flange, and the manifold flange is adapted for joining to the internal combustion engine to receive exhaust gases from the first row of cylinders of the engine.