| 摘要 |
The invention provides a two-stroke opposed piston internal combustion engine (1) comprising a plurality of cylinders (2), each cylinder being provided with a first piston (3) and a second piston (4) adapted to perform opposed motions in the cylinder (2), - each cylinder (2) being provided with at least one intake port (7), a communication between an air intake arrangement (5) and the cylinder (2) via the intake port (7) being dependent on the position of the first piston (3), - each cylinder (2) further being provided with at least one exhaust port (8), a communication between an exhaust guiding arrangement (6) and the cylinder (2) via the exhaust port (8) being dependent on the position of the second piston (4), - at least one of the cylinders (2) being provided with an additional port (9) and an additional port valve (10), a communication between the cylinder (2) and an additional conduit (11) externally of the cylinder, via the additional port (9), being controllable with the additional port valve (10), - the air intake arrangement (5) comprising at least one intake valve (12) for selectively reducing or inhibiting air admittance to at least one of the cylinders (2). |
