| 摘要 |
A cylinder de-activator system for an internal combustion engine having a block, an engine head, a plurality of engine cylinders in the block, intake and exhaust valves for each engine cylinder spring-loaded to their closed positions, a cam operated valve train operating each of the valves with the valve train having a rocker lever that is rockingly connected to a mounting stud extending upwardly from the engine head, and hydraulic means for varying the fulcrum position on the mounting studs about which the rocker lever rocks.
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