LUBRICATING STRUCTURE FOR FOUR-STROKE ENGINE

专利名称：LUBRICATING STRUCTURE FOR FOUR-STROKE ENGINE

发明人：Yasuomi ISHIHARA,Takashi TSUTSUMI申请号：US15399409申请日：20170105

公开号：US20170191388A1公开日：20170706

专利附图：

摘要：A lubricating structure for a four-stroke engine includes a first oil groove and asecond oil groove. The engine includes a crankcase, a cylinder, a cylinder head and an oilpan. The crankcase makes up a crank chamber. The cylinder head is equipped with a valve

chamber housing valve driving mechanism. The oil pan is provided on a bottom of thecrank chamber. The first oil groove leads mist of the lubricating oil in the crank chamberto the valve chamber by communicating the crank chamber and the valve chamber witheach other. The second oil groove leads surplus lubricating oil in the valve chamber tothe oil pan in the crank chamber by communicating a lower part of the valve chamberwith a neighborhood of the oil pan in the crank chamber. The first oil groove is setsmaller in flow path cross-sectional area than the second oil groove.

申请人：SUZUKI MOTOR CORPORATION

地址：Shizuoka-Ken JP

国籍：JP

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