| 摘要 |
Exhaust gas recirculation systems (160) and methods related to internal combustion engines (102) are provided In one embodiment, a system (160) comprises an engine (104) having at least a first cylinder group (106) and a second cylinder group (108), with at least one cylinder in each cylinder group, an intake manifold (120) having an inlet (122) and a first outlet (126) coupled to the first cylinder group (106) and a second outlet (128) coupled to the second cylinder group (108), an intake passage (130) coupled to the intake manifold inlet (122), and first and second exhaust manifolds (150, 162) coupled to the first and second cylinder groups (106, 108), respectively. An exhaust gas recirculation system (160) is further coupled between the second exhaust manifold (162) and the intake passage (130), and has a number of openings (170, 172, 174, 176) positioned within the intake passage (130), the number of openings equal to or greater than a number of cylinders having an intake event between successive exhaust events occurring in the second cylinder group (108). |
