| 摘要 |
A valve-lash adjuster equipped valve operating device for an internal combustion engine includes a biasing device biasing an engine valve in a valve-closing direction, and a valve drive mechanism opening the engine valve against the spring bias of the biasing device. A hydraulic zero lash adjuster is disposed between the engine valve and the valve drive mechanism to provide zero valve lash. A restriction device is provided to restrict a compressive force applied from each of the engine valve and the valve drive mechanism to the zero lash adjuster, when the engine is stopped.
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