Abstract: A compressor section includes a compressor wheel and a compressor housing that surrounds the compressor wheel. The compressor housing includes a flow passage with an upstream area. The compressor section also includes a cooling pocket that is defined within the compressor housing. The cooling pocket is configured to receive a coolant for cooling the compressor housing. Furthermore, the compressor section includes a thermo-decoupling pocket that is defined within the compressor housing. The thermo-decoupling pocket is disposed between the cooling pocket and the upstream area of the flow passage. The thermo-decoupling pocket is fluidly connected to an exterior area outside the compressor housing.

Abstract: An engine system includes an internal combustion engine, at least one turbocharger, and a catalytic treatment device. The engine includes an exhaust manifold system having a main exhaust manifold and a bypass exhaust manifold. A partial-engine bypass valve system is positioned between the engine and the exhaust manifold system. The bypass valve system when placed in a non-bypass position directs all of the engine exhaust gases to the turbine wheel of the turbocharger, and after passing through the turbine wheel the gases proceed to the catalytic device. In a bypass position of the bypass valve system, a bypass portion of the total exhaust gases is made to bypass the turbine wheel and proceed to the catalytic device, while the remainder first passes through the turbine wheel before going to the catalytic device.

Abstract: An engine system includes an internal combustion engine, at least one turbocharger, and a catalytic treatment device. The engine includes an exhaust manifold system having a main exhaust manifold and a bypass exhaust manifold. A partial-engine bypass valve system is positioned between the engine and the exhaust manifold system. The bypass valve system when placed in a non-bypass position directs all of the engine exhaust gases to the turbine wheel of the turbocharger, and after passing through the turbine wheel the gases proceed to the catalytic device. In a bypass position of the bypass valve system, a bypass portion of the total exhaust gases is made to bypass the turbine wheel and proceed to the catalytic device, while the remainder first passes through the turbine wheel before going to the catalytic device.

Abstract: A compressor section includes a compressor wheel and a compressor housing that surrounds the compressor wheel. The compressor housing includes a flow passage with an upstream area. The compressor section also includes a cooling pocket that is defined within the compressor housing. The cooling pocket is configured to receive a coolant for cooling the compressor housing. Furthermore, the compressor section includes a thermo-decoupling pocket that is defined within the compressor housing. The thermo-decoupling pocket is disposed between the cooling pocket and the upstream area of the flow passage. The thermo-decoupling pocket is fluidly connected to an exterior area outside the compressor housing.

Abstract: An assembly for an exhaust bypass valve of a two-stage turbocharger can include a first turbocharger stage; a second turbocharger stage; an exhaust bypass valve that includes an open state and a closed state; and a linkage mechanism that links the exhaust bypass valve to an actuator where the linkage mechanism includes a locked state for the closed state of the exhaust bypass valve.

Abstract: An assembly for an exhaust bypass valve of a two-stage turbocharger can include a first turbocharger stage; a second turbocharger stage; an exhaust bypass valve that includes an open state and a closed state; and a linkage mechanism that links the exhaust bypass valve to an actuator where the linkage mechanism includes a locked state for the closed state of the exhaust bypass valve.