Valve timing control device of motive force transmission system for combustion engine used in vehicle, has convex profile line that is extended along auxiliary connecting edge between bottom wall and recess portion

摘要

The device (1) has a driven rotor (20) that is rotated with a cam shaft (2). The rotational phase of driven rotor is altered using a flux of work fluid with respect to an adjustable chamber (30f). A housing (12) is provided with a convex profile line (124) at an outer surface (122d) of bottom wall (122). The convex profile line is extended along main connecting edge (122a) between bottom wall and circumferential wall (120). The convex profile line is extended along an auxiliary connecting edge (122b) between bottom wall and recess portion (12c).