| 摘要 |
<P>PROBLEM TO BE SOLVED: To transmit large driving torque to a pump shaft from a camshaft, without substantially reducing an effective support surface of a journal part of the camshaft. <P>SOLUTION: The pump driving device in an engine drives the pump shaft 32 of a pump 21 installed in an engine body 11 by the camshaft 20 for a valve system supported by the engine body 11. While threadably attaching a bolt 23 having a head part 23a with a square hole 23c to one end part of the camshaft 20, a square shaft part 32a fitted to the square hole 23c is formed in one end part of the pump shaft 32, and the pump shaft 32 is driven from the camshaft 20 via these square hole 23c and square shaft part 32a. <P>COPYRIGHT: (C)2008,JPO&INPIT |
