| 摘要 |
The invention relates to an internal combustion engine of four-stroke type, comprising a first valve control means (21), which is arranged to control the first valve (18) to open at a bottom dead centre (BDC) for the piston (P1 ) in a first cylinder (C1), between an expansion stroke and an exhaust stroke, and to close at a top dead centre (TDC) for the piston (P1) in the first cylinder (C1), between the exhaust stroke and an inlet stroke. A second valve control means (22) is arranged to control a second valve (19) to open when the first valve (18) closes, and to close at the bottom dead centre (BDC), between the inlet stroke and a compression stroke. A deactivation device (34) is arranged to control a third valve (24), so that it remains closed during all the strokes of the engine (2). The invention also pertains to a vehicle (1) comprising such an internal combustion engine (2) and a method to control an internal combustion engine (2) |
