Patent ID: 9228504
Filing Date: 2016-01-05
CPC Classification: F01N,F02B,F02D,F02M,Y02T

Claim Text:
1. A diesel engine, comprising: a first group of cylinders having exhaust valves and intake valves; a second group of cylinders having exhaust valves and intake valves; a valve stopping mechanism to stop the exhaust valves and the intake valves-of one of the first group of cylinders or the second group of cylinders from operating and thereby deactivating the first or second group of cylinders, respectively; a controller for the diesel engine; a main intake passage that separates at a branch into a first intake passage to the first cylinder group and a second intake passage to the second cylinder group a first exhaust passage from the first cylinder group and a second exhaust passage from the second cylinder group; wherein the first and second exhaust passages combine at a merge to form a main exhaust passage; a first turbocharger connected to the first intake passage and connected to the first exhaust passage; a second turbocharger connected to the second intake passage and connected to the second exhaust passage; and a third turbocharger connected to the main intake passage on an upstream side of the branch and connected to the main exhaust passage on a downstream side of the merge; wherein, on a downstream side of a compressor of the first turbocharger, a first intercooler is provided, and on a downstream side of a compressor of the second turbocharger, a second intercooler is provided, respectively, and wherein, the first intake passage on a downstream side of the first intercooler is separate from the second passage on a downstream side of the second intercooler, the first intake passage is connected to an intake manifold of the first cylinder group, and the second intake passage is connected to an intake manifold of the second cylinder group.