| 摘要 |
<p>A valve timing adjuster is mounted to a driving force transmission system, wherein the driving force transmission system transmits a driving force through a timing belt from a drive shaft to a driven shaft (43, fig.2) such as a camshaft. The timing belt is rotatable synchronously with rotation of the drive shaft. The valve timing adjuster includes a pulley part 12, a housing 13, and a vane rotor 9. The pulley part is rotatable synchronously with the drive shaft through engagement with the timing belt, the housing is formed integrally with the pulley part, and the vane rotor is received within the housing. The vane rotor is rotatable synchronously with the driven shaft. The vane rotor has a plurality of vane parts (9a, 9b, 9c, 9d) that are rotatable relative to the housing within a predetermined angular range. The pulley may be made of resin with the housing insert moulded (molded) into the pulley or they may be formed by aluminium sintering or extrusion.</p> |
