| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection pump absorbing inclination of a camshaft 4 caused by pump force-feed load and inclination of the camshaft 4 in assembly without increasing the number of parts, and prevent increase in size of a feed pump 2. SOLUTION: In the feed ump 2 of a fuel injection pump, an insertion part 41 disposed on one end side of the camshaft 4 projected from one end face of a pump housing 11 is clearance-fit into an insertion hole 26 of an inner rotor 23 constituting a pump main body 21 through an intermediate clearanceδ3 and a second radial clearanceδ3. A tapered part 51 with outer diameter becoming smaller toward one end face of the camshaft 4 is formed as a relief part 5 on one end side of the insertion part 41 of the camshaft 4. Therefore, the inclination of the camshaft 4 caused by the pump force-feed load and the inclination of the camshaft 4 in assembly are absorbed so that a change amount of a side clearanceδ1 is decreased. COPYRIGHT: (C)2005,JPO&NCIPI
|
