COMBUSTION ENGINE AS WELL AS METHOD FOR ENGINE BRAKING USING SUCH A COMBUSTION ENGINE

摘要

The present invention relates to a combustion engine and an engine braking method using such a combustion engine, the combustion engine comprising at least one cylinder (2) having a cylinder space (6), a piston (3) displaceable in the cylinder (2) An intake channel 9 having a first pressure P1 and a first inlet valve 7 disposed between the intake channel 9 and the cylinder space 6 and an exhaust air channel 10 having a pressure P2, , A first outlet valve (8) arranged between the cylinder space (6) and the exhaust air channel (10), and a third pressure P3 higher than the first pressure (P1) and the second pressure (P2) And a storage section (11) is arranged in a controllable fluid communication with the cylinder space (6). The method takes place during a two-stroke cycle and includes the steps of displacing the piston from its top dead center toward its bottom dead center, opening the first inlet valve (7) for at least a portion of the time during which the piston is displaced from its top dead center to its bottom dead center , Opening the fluid communication between the reservoir (11) and the cylinder space (6) when the piston is at the bottom dead center and also when the first inlet valve (7) is closed, And maintaining the fluid communication between the reservoir 11 and the cylinder space 6 in an open state during at least a portion of the time that the piston is displaced from the bottom dead center to the top dead center.