| 摘要 |
<p>Specially shaped cam lobe angular movement system around offset from its symmetry axis point. One at least specially shaped cam lobe on a rotating shaft is able to rotate gradually around a point (joint) which lies offset from its symmetry axis. This joint is created through proper modulations of the cam lobe and the rotating shaft. The movement of the lobe can be transmitted by mechanical, hydraulic or any other way. The lobe is designed in such a way so that in any position during its movement to cooperate smoothly with rotating shaft and the respective lifter without the occurence of unwanted noises. Through the gradual angular movement of the lobe it is achieved the simultaneous gradual change of the lifting, the phase and the opening - closing duration of the respective valve. The present invention can be applied in all the types of piston internal combustion engines without any need for engine modification.</p> |
