| 摘要 |
A CRANKCASE COMPRESSION FOUR-CYCLE INTERNAL COMBUSTION ENGINE (11) HAVING A VALVE ACTUATING MECHANISM THAT IS LUBRICATED BY FIRST FOUR-CYCLE TYPE LUBRICATING SYSTEM. A SECOND TWO-CYCLE LUBRICATING SYSTEM IS PROVIDED FOR LUBRICATING THE CRANKCASE (14) AND COMPONENTS ASSOCIATED THEREWITH. THE SECOND LUBRICATING SYSTEM ALSO DELIVERS LUBRICANT TO THE PISTON (16) AND PISTON PIN (17)THROUGH A GROOVE PASSAGE WAY FORMED IN PART IN THE CONNECTING ROD (18) FOR THEIR LUBRICATION.
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