초록 ▼

An exhaust system in an internal combustion engine has an exhaust manifold, an exhaust flange is connected to the exhaust manifold, and a turbocharger is connected to the exhaust flange. The turbocharger has an exhaust inlet flange connected to the exhaust flange. The exhaust manifold has a first pa

An exhaust system in an internal combustion engine has an exhaust manifold, an exhaust flange is connected to the exhaust manifold, and a turbocharger is connected to the exhaust flange. The turbocharger has an exhaust inlet flange connected to the exhaust flange. The exhaust manifold has a first passage and a second passage, and the exhaust flange has a first exhaust port and a second exhaust port. The exhaust ports of the exhaust flange each have a generally triangular cross-sectional configuration.

대표청구항 ▼

1. An internal combustion engine comprising:a cylinder block; a cylinder head connected to said cylinder block; an exhaust manifold connected to at least one of said cylinder block and said cylinder head; an exhaust flange connected to said exhaust manifold, said exhaust flange having less than thre

1. An internal combustion engine comprising:a cylinder block; a cylinder head connected to said cylinder block; an exhaust manifold connected to at least one of said cylinder block and said cylinder head; an exhaust flange connected to said exhaust manifold, said exhaust flange having less than three exhaust ports, a first exhaust port of said less than three exhaust ports having a generally triangular configuration and a second exhaust port of said less than three exhaust ports, having a generally triangular configuration; and a turbocharger connected to said exhaust flange. 2. The engine of claim 1 wherein said exhaust manifold has a first end portion, a first passage extending from said first end portion, a second end portion, and a second passage extending from said second end portion, and said first exhaust port is in fluid communication with said first passage and said second exhaust port is in fluid communication with said second passage.3. The engine of claim 1 wherein said first exhaust port and said second exhaust port are surrounded by a wall thickness.4. The engine of claim 3 wherein at least one of said first exhaust port and said second exhaust port is bounded by a plurality of linear portions, said linear portions being connected by blending portions.5. The engine of claim 4 wherein at least one of said blending portions has a radius with a defined value, said wall thickness has a predefined value, and said defined radius value is approximately equal to said predefined wall thickness value.6. An exhaust system comprising:an exhaust manifold having a first end portion and a second end portion, a first passage extending from said first end portion, and a second passage extending from said second end portion; an exhaust flange connected to said exhaust manifold, said exhaust flange having less than three exhaust ports, a first exhaust port of said less than three exhaust ports being in fluid communication with said first passage and a second exhaust port of said less than three exhaust ports being in fluid communication with said second passage, said first exhaust port and said second exhaust port being separated and each having a pre-established cross-sectional configuration being generally triangular in shape; and a turbocharger, said turbocharger having an exhaust inlet flange being divided into a first inlet port and a second inlet port, said first inlet portion being in fluid communication with said first exhaust port and said second inlet portion being in fluid communication with said second exhaust port, said exhaust inlet flange being connected to said exhaust flange. 7. The system of claim 6 wherein said exhaust flange has a defined wall thickness positioned about said first exhaust port and said second exhaust port.8. The system of claim 6 wherein a gasket is positioned between said exhaust flange and said exhaust inlet flange.9. The system of claim 6 wherein said exhaust flange is composed of HiSilMoly.10. The system of claim 6 wherein said exhaust flange is composed of stainless steel.11. The system of claim 6 wherein said exhaust flange is composed of SuperSilMoly.12. The system of claim 6 wherein said exhaust flange is composed of Ni-Resist.13. The system of claim 1 wherein the cross-sectional configuration of at least one of said first exhaust port and said second exhaust port is D-shaped.14. The system of claim 6 wherein at least one of said first exhaust port and said second exhaust port have a base and a peak.15. The system of claim 14 wherein said exhaust flange has a defined wall thickness positioned about said first exhaust port and said second exhaust port, said first exhaust port and said second exhaust port are separated by a center portion near said peak of each of said first exhaust port and said second exhaust port, said center portion having a thickness that is less than said defined wall thickness of said exhaust flange.16. The system of claim 14 wherein said exhaust flange has a defined wall thickness positioned about said first exhaust port and said second exhaust port, said first exhaust port and said second exhaust port are separated by a center portion near said peak of each of said first exhaust port and said second exhaust port, said center portion having a thickness that is approximately equal to said defined wall thickness of said exhaust flange.17. An exhaust system comprising:an exhaust manifold having a first end portion and a second end portion, a first passage extending from said first end portion, and a second passage extending from said second end portion; an exhaust flange connected to said exhaust manifold, said exhaust flange having a first exhaust port in fluid communication with said first passage and a second exhaust port in fluid communication with said second passage, said first exhaust port and said second exhaust port being separated and each having a pre-established cross-sectional configuration being generally triangular in shape, at least one of said first exhaust part and said second exhaust port having a base and a peak, said exhaust flange having a first axis passing through said base and said peak of each of said first exhaust port and said second exhaust port, said exhaust flange having a center portion separating said first exhaust port and said second exhaust port near said respective peaks, end each of said first exhaust port and said second exhaust port being is bounded by a first linear portion, a second linear portion, and a third linear portion, said first linear portion having a straight segment extending from said center portion at a first defined angle from said first axis, said second linear portion having a straight segment extending from said center portion at a second defined angle from said first axis, and said third linear portion having a straight segment spared from said center portion and oriented substantially perpendicular to said first axis; and a turbocharger, said turbocharger having an exhaust inlet flange being divided into a first inlet port and a second inlet port, said first inlet portion being in fluid communication with said first exhaust port and said second inlet portion being in fluid communication with said second exhaust port, said exhaust inlet flange being connected to said exhaust flange. 18. The system of claim 17 wherein at least one of said first defined angle and said second defined angle is approximately forty-five degrees.19. The system of claim 17 wherein at least one of said first exhaust port and said second exhaust port is symmetric about said first axis.20. The system of claim 17 wherein said exhaust flange has a second axis that is substantially perpendicular to said first axis and said exhaust flange is symmetric about said second axis.21. The system of claim 17 wherein said exhaust flange has an outer surface parallel with said first axis.22. The system of claim 17 wherein at least one of said first linear portion of said first exhaust port, said first linear portion of said second exhaust port, said second linear portion of said first exhaust port, and said second linear portion of said second exhaust port is arcuate.23. The system of claim 17 wherein said straight segment of said first linear portion and said straight segment of said second linear portion are connected by a blending segment.24. The system of claim 23 wherein said blending segment has a first radius having a defined value and said exhaust flange has a defined wall thickness that is greater than said predefined value.25. The system of claim 17 wherein said exhaust flange has a first outer surface, a second outer surface, a third outer surface, and a fourth outer surface, said first outer surface and said second outer surface being intersected by said first axis, said first outer surface being separated from said third linear portion of said first exhaust port by a first wall thickness and said second outer surface being separated from said third linear portion of said second exhaust port by a second wall thickness.26. The system of claim 25 wherein said third outer surface is separated from at least one of said first linear portion of said first exhaust port and said first linear portion of said second exhaust port by a distance greater than at least one of said first wall thickness and said second wall thickness.27. The system of claim 25 wherein said fourth outer surface is separated from at least one of said second linear portion of said first exhaust port and said second linear portion of said second exhaust port by a distance greater than at least one of said first wall thickness and said second wall thickness.28. The system of claim 17 wherein at least one of said first exhaust port and said second exhaust port is bounded by a fourth linear portion, said fourth linear portion having a straight segment connecting said straight segment of said third linear portion with at least one of said straight segment of said first linear portion and said straight segment of said second linear portion.29. The system of claim 28 wherein said straight segment of said fourth linear portion and said straight segment of said third linear portion are connected by a second radius and said straight segment of said fourth linear portion and at least one of said straight segment of said first linear portion and said straight segment of said second linear portion are connected by a third radius.30. The system of claim 29 wherein said second radius and said third radius are substantially equal.31. The system of claim 29 wherein said second radius has a defined second radius value, said third radius has a defined third radius value, said exhaust flange has a defined wall thickness, and said exhaust flange defined wall thickness is substantially equal to at least one of said defined second radius value and said defined third radius value.32. The system of claim 17 wherein said exhaust flange has at least one connection zone for connecting said exhaust flange to said exhaust inlet flange of said turbocharger.33. The system of claim 32 wherein said exhaust flange has four connection zones.34. The system of claim 32 wherein said at least one connection zone defines at least one hole dimensioned to receive a connector.35. The system of claim 34 wherein said hole has a center and said center is spaced at least a defined distance from both of said first exhaust port and said second exhaust port.36. The system of claim 35 wherein said exhaust flange has a defined wall thickness positioned about said first exhaust port and said second exhaust port and said defined distance of said hole center is approximately equal to said defined wall thickness.