| 摘要 |
<p>1. Multi-cylinder piston engine with controlled valves, with a V-arrangement of its cylinders, in addition with an even number of cylinders and a cam shaft for each row of cylinders to control gas exchange valves and other engine units, like fuel pumps, which cam shafts can be driven by the crankshaft by means of a control drive, characterised by the following features, - the cam arrangement on the cam shaft (10) of one row of cylinders is identical to the cam arrangement on the cam shaft (9) associated with the other row of cylinders, - the cam shaft (10) of one row of cylinders is arranged on the internal-combustion engine turned by 180 degrees lengthways with respect to that (9) of the other row of cylinders, - the crankshaft (12) - dependent on the firing order predetermined on the cam shafts (9, 10) - is arranged in the internal-combustion engine for running in one direction of rotation (28) in a first fitting position and for running in the opposite direction of rotation (29) in a second fitting position rotated by 180 degrees lengthways with respect to the first fitting position, - the control drive (13) is constituted by gears through which the two cam shafts (9, 10) can be driven with opposite direction of rotation (11, 15), - the control drive (13) further has an intermediate gear (14) which is variable in such a way that the directions of rotation (11, 15) of both cam shafts (9, 10), predetermined on the part of the cam arrangement and on the part of the firing order, are preserved with each crankshaft rotation direction - right hand run or left hand run (28, 29), with which in the case of a reversible internal-combustion engine it is the crankshaft main direction of rotation.</p> |
