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公开(公告)号:US10107148B2
公开(公告)日:2018-10-23
申请号:US15120174
申请日:2015-02-17
摘要: A valve rotation includes: a first sheet member that extends toward a surrounding of a valve stem under a condition that a rotation action of the first sheet member is suppressed with respect to a cylinder head, and a second sheet member that faces to the first sheet member, that is capable of rotating with respect to the first sheet member and is subjected to a load for opening the valve; a force conversion structure that converts the load for opening the valve applied to the second sheet member into a rotation force.