| Patent application number | Description | Published |
|---|
| 20090000296 | Turbocharger having divided housing with integral valve - A turbocharger is provided having a turbine wheel and a housing configured to at least partially enclose the turbine wheel. The housing may have a first turbine volute including a first inlet and a second turbine volute having a second inlet. The first and second volutes may be configured to communicate a first and second fluid flow with the turbine wheel. The housing may also have a wall member axially separating the first and second turbine volutes. In addition, the housing may have a valve configured to selectively allow fluid in the first inlet to communicate with fluid in the second inlet. | 01-01-2009 |
| 20100024414 | Turbocharger having balance valve, wastegate, and common actuator - A turbocharger for a use with a combustion engine is provided. The turbocharger may have a turbine housing with a first volute, a second volute, and a common outlet. The turbocharger may also have a turbine wheel disposed between the common outlet and the first and second volutes. The turbocharger may further have a first valve configured to selectively fluidly communicate the first volute with the second volute upstream of the turbine wheel, a second valve configured to selectively fluidly communicate the second volute with the common outlet to bypass the turbine wheel, and a common actuator configured to move the first and second valves. | 02-04-2010 |
| 20100024416 | Exhaust system having parallel asymmetric turbochargers and EGR - An exhaust system for a use with a combustion engine is provided. The exhaust system may have a first exhaust manifold configured to receive exhaust from the engine, and a first turbocharger driven by exhaust from the first exhaust manifold. The exhaust system may also have a second exhaust manifold configured to receive exhaust from the engine in parallel with the first exhaust manifold, and a second turbocharger driven by exhaust from the second exhaust manifold and having a different flow capacity than the first turbocharger. The exhaust system may further have an exhaust gas recirculation circuit in fluid communication with the second exhaust manifold. | 02-04-2010 |
| 20100024417 | Exhaust system having 3-way valve - An exhaust system for a use with a combustion engine is provided. The exhaust system may have a first exhaust manifold, a second exhaust manifold, and an exhaust gas recirculation circuit. The exhaust system may also have a fixed geometry turbocharger with a first volute configured to receive exhaust from the first exhaust manifold, and a second volute configured to receive exhaust from the second exhaust manifold. The exhaust system may also have a recirculation control valve in fluid communication with the first exhaust manifold, the second exhaust manifold and the exhaust gas recirculation circuit. The recirculation control valve may have a valve element movable to selectively adjust a flow of exhaust in the exhaust gas recirculation circuit, the first volute, and the second volute. | 02-04-2010 |
| 20100024419 | Exhaust system having series turbochargers and EGR - An exhaust system for a use with a combustion engine is provided. The exhaust system may have a first exhaust manifold configured to receive exhaust from the engine, a second exhaust manifold configured to receive exhaust from the engine in parallel with the first exhaust manifold, and an exhaust gas recirculation circuit in fluid communication with only the first exhaust manifold. The exhaust system may also have a first turbocharger having dual volutes configured to simultaneously receive exhaust from the first exhaust manifold and the second exhaust manifold, and a second turbocharger configured to receive exhaust from the first turbocharger and compress air directed into the engine. | 02-04-2010 |
| 20100037601 | EGR system having multiple discharge locations - An exhaust gas recirculation system for a use with an engine having a plurality of cylinders is disclosed. The exhaust gas recirculation system may have an intake passage configured to direct combustion air to all of the plurality of cylinders, and an exhaust passage configured to receive exhaust from fewer than all of the plurality of cylinders. The exhaust gas recirculation system may also have a plurality of separate exhaust conduits in parallel communication with the exhaust passage and configured to direct exhaust from the exhaust passage to the intake passage at multiple locations along a length direction of the intake passage. The multiple locations may be separated from each other by a volume within the intake passage, and the volume may be a function of a total number of the plurality of cylinders, a number of the plurality of cylinders contributing exhaust to the exhaust passage, and a number of the multiple locations. | 02-18-2010 |
| 20100077747 | Exhaust system having parallel asymmetric turbochargers and EGR - An exhaust system for a use with a combustion engine is provided. The exhaust system may have a first exhaust manifold configured to receive exhaust from the engine, and at least one turbocharger driven by exhaust from the first exhaust manifold. The exhaust system may also have a second exhaust manifold configured to receive exhaust from the engine in parallel with the first exhaust manifold, and at least two turbochargers driven by exhaust from the second exhaust manifold. The exhaust manifold may further have an exhaust gas recirculation circuit in fluid communication with only the first exhaust manifold. A number of turbochargers that receives exhaust from the first exhaust manifold may be less than a number of turbochargers that receives exhaust from the second exhaust manifold. | 04-01-2010 |
| 20100146965 | Engine system having multi-stage turbocharging and exhaust gas recirculation - An engine system is disclosed. The engine system includes an engine, an intake system for providing intake air to the engine and an exhaust system receiving exhaust gas from the engine. The engine system also includes a first exhaust turbine arranged downstream of the engine and a second and third exhaust turbines coupled in parallel and arranged downstream of the first exhaust turbine. A first valve is associated with the second and third exhaust turbines, the first valve configured to at least partially restrict exhaust gas to one of the second and third exhaust turbines and increase exhaust gas to the other turbine. The engine system also includes an exhaust gas recirculation system configured to redirect at least a portion of exhaust gas from the exhaust system to the intake system. | 06-17-2010 |
