| 摘要 |
PCT No. PCT/FR82/00221 Sec. 371 Date Aug. 30, 1983 Sec. 102(e) Date Aug. 30, 1983 PCT Filed Dec. 29, 1982 PCT Pub. No. WO83/02301 PCT Pub. Date Jul. 7, 1983.A device for internal combustion engines particularly automobile engines, which varies the opening duration and the lift of the timing valves. This variation results from the utilization of all or part of the profile of an alternating cam of which the motion about an axis is provided by rotating main cams which contact rollers carried on the alternating cam, and is transmitted to a roller in contact with the lever which then actuates the valve. The timing is varied by adjusting the position of the roller by means of support arms by which the roller is displaced with respect to the alternating cam and lever. |
