Patent ID: 7409943

Claim:
An engine braking method, to be carried out in a two-stroke mode, for a supercharged internal combustion engine, in which combustion air, which is supplied to cylinders ( 1 ) under boost pressure, is compressed in the cylinders ( 1 ) by controlling of charge exchange valves ( 5 , 7 ),) and is subsequently discharged into the exhaust tract ( 16 ), said method comprising the steps of: opening during an expansion stroke of a piston in the cylinder ( 1 ), an inlet valve ( 5 ) before the piston reaches a bottom dead center position (UT) and closing it again after the bottom dead center (UT) is overshot, a closing time point (ES) of the inlet valve ( 5 ) lying within a 30° crank angle range after bottom dead center (UT), and, in a subsequent compression stroke, opening an outlet valve ( 7 ) before the piston reaches its top dead center position (OT) and closing the outlet valve again after the top dead center position (OT) is overshot.