| 摘要 |
A device for selectively disabling and enabling, while running, the combustion chamber valves of an internal combustion engine. The device is interposed in engine valve gear of the type employing a plurality of rockers mounted on a common shaft and acted upon by the cyclic application and relaxation of valve gear driving forces. Each of the rockers is pivotally mounted on the shaft by fulcrum means movable transversely with respect to the shaft for changing the rocker pivot point. The fulcrum means is mounted by latchable means movable, when the valve driving forces are relaxed, between a first and second position to permit changing of the rocker pivot for effecting disablement and enablement of the valve gear for selected valves. Actuator means selectively apply and hold a force on the latchable means and movement thereof occurs during the valve gear event upon relaxation of the driving forces.
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