Patent ID: 7013856
Filing Date: 2006-03-21
Classification: F01L

Abstract:
1. A valve timing control device comprising: a rotor, a housing which can rotate relative to the rotor, a projecting portion which is formed on the housing so as to slide on the outer circumference of the rotor, the projecting portion possessing circumferentially spaced apart ends, a fluid chamber which is defined between the rotor and the housing, a vane which is provided on the rotor and which divides the fluid chamber into a retard angle chamber and an advance angle chamber, a torsion coil spring for urging the rotor relative to the housing in the advance angle direction in which the volume of the retard angle chamber decreases and the volume of the advance angle chamber increases, a first hook portion formed on one end of a coil portion of the torsion spring, a first engaging portion provided in a first receiving groove formed on a plate connected to the housing and engaged with the first hook portion, the first engaging portion opening toward a surface of the plate contacting the rotor, and the first engaging portion being circumferentially positioned between the ends of the projecting portion.