Different fuel supply between donor and non-donor cylinders in engines

摘要

One method of controlling an engine includes injecting a first fuel and a second fuel into each of a donor cylinder group and a slave cylinder group of the engine. The method also includes injecting a higher proportion of the first fuel into the donor cylinder group as compared to the first fuel being injected into the donor cylinder group. In addition, the method includes injecting a minor portion of the second fuel into the donor cylinder group as compared to the second fuel being injected into the donor cylinder assembly. In addition, the method includes recirculating exhaust emission from the master cylinder group to the non-donor cylinder group and the donor cylinder group, and combusting a mixture of air, the first fuel, the second fuel, and the exhaust emissions from the donor cylinder group in both the donor cylinder group and the donor cylinder group.