| 摘要 |
The invention relates to an internal combustion engine, which comprises a engine block (1) with at least one cylinder (3), and a crankshaft (5) having at least a crank (6) and being rotatably supported within the engine block. The piston (4) is reciprocated within the cylinder and has a piston rod (6) mounted to the piston on one end and mounted to the crank of the crankshaft on the other end. The crankshaft (5) is journalled on bearings (9) which are mounted in adjustable eccentrics (10), rotation of the eccentrics causing relative repositioning of the crankshaft centerline (8) and the engine block (1) in order to adjust the compression ratio of the piston in its cylinder. The engine further comprises a gearbox (2) having an input shaft (15) connected to the crankshaft (5). The gearbox (2) and the engine block (1) are mounted to each other in such manner that the engine block and gearbox are relatively repositioned simultaneously with a crankshaft repositioning. The engine block (1) is substantially stationary and the gearbox (2) is operatively coupled to the eccentrics (10) such that the gearbox input shaft (15) is kept aligned with the crankshaft (5) when this crankshaft is repositioned. The gearbox has means (21) to prevent rotation of the gearbox relative to the engine block. <IMAGE> |
