ENGINE WITH DECOMPRESSION DEVICE

摘要

PROBLEM TO BE SOLVED: To suppress the overall length of a camshaft including the length of a decompression device provided in an engine and also to suppress an increase in number of parts of the decompression device. SOLUTION: Disclosed herein is an engine including a decompression device 41 having a decompression weight 42 pivotably supported through a pivot shaft 48 to a camshaft 25 and rotated at a predetermined angle by a centrifugal force generated during the rotation of the camshaft 25. A weight accommodating portion 47 for pivotably accommodating the decompression weight 42 is formed between the opposite end portions of the camshaft 25. The outer diameter of the camshaft 25 and the decompression device 41 is smaller than that of a ball bearing 27. The decompression weight 42 is directly engaged with one end of a decompression camshaft 43 to thereby rotate the decompression camshaft 43. COPYRIGHT: (C)2008,JPO&INPIT