摘要:
The present disclosure refers a method and device for controlling the operation of an internal combustion engine. The internal combustion engine is provided with at least one piston/cylinder unit having at least one intake valve, and is operating in a first load range and in a second load range, the second load range being higher than the first load range. The method comprises at least the step of, in the second load range of the internal combustion engine, closing the intake valve in a range of 20° to 45° before a BDC of the piston, according to a Miller cycle, and switching off the operation according to the Miller cycle at least during a part of a load increase within the second load range.
摘要:
The present disclosure refers to a turbocharged internal combustion engine with exhaust gas recycling, comprising an intake manifold (24), an exhaust manifold (26), a fresh air turbocharger (28) and an exhaust supercharger (46), wherein the intake manifold is divided by a separating wall (70) into a fresh air passage (72) and an exhaust passage (74), one of the passages being connected to inlet openings of cylinders of the engine, the fresh air passage (72) being connected to the outlet (38) of the compressor (30) of the fresh air turbocharger (28), the exhaust passage (24) being connected to the outlet (28) of the compressor (48) of the exhaust supercharger (46) and the separating wall (70) being formed with orifices (76) connecting the two passages.
摘要:
The present disclosure refers to atwo-stage turbo-charged internal combustion engine comprises a first stage turbo-charger (28) and a first cooler (44) arranged on a first side (16) of a crankcase (10), which first side is located at one end of the crankshaft, a second stage turbo-charger (36) and a second cooler (46) arranged on an opposite side of the crankcase. Fresh air flows through a compressor (30) of the first stage turbo-charger (28), the first cooler (44), the compressor (38) of the second stage turbo-charger (36) and the second cooler (46) to an intake manifold (24). The exhaust manifold (26) is connected to inlet openings (72, 74) of turbines (32, 34) of the turbo-chargers (28, 36).