| 摘要 |
The invention relates to engine-building engineering. The inventive valve-timing gear comprises a common intake-exhaust disc valve (1) and intake (5) and exhaust (7) channels. A shutter (4) is arranged in the channel (5) and shutter (6) in mounted in the channel (7). Said shutters are used for dividing intake and exhaust processes. The rotation axis of each shutter (4, 6) is offset with respect to the symmetry axis. A counterweight (14) is embodied on each shutter on the side of offset. The inventive structural design makes it possible to reduce unbalanced inertia forces during the shutter motion, decrease vibrations, the drive wear and energy consumption.
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