Patent ID: 7571700
Filing Date: 2009-08-11
Classification: F01L

Abstract:
1. A valve timing control apparatus comprising: a driven member linked to a camshaft of an internal combustion engine; a drive member which is linked to a drive shaft of the internal combustion engine and supports the driven member in a relatively rotational manner; and a hydraulic chamber which is partitioned by a vane and is disposed between the driven member and the drive member, wherein the drive member comprises: an outer rotor forming the hydraulic chamber together with the driven member; a housing member including a front plate portion joined to one axial end of the outer rotor and a tubular portion linked with the front plate portion and positioned on the outer radial side of the outer rotor; and a rear plate member joined to the other axial end of the outer rotor and to the housing member; and wherein the housing member, the outer rotor, and the rear plate member are integrally fixed together by a fastening member; a head portion of the fastening member is interlocked with the rear plate member, a shaft portion thereof is passed through a hole in the outer rotor, and a sealant-coated male threaded portion is threadably engaged with a female threaded portion of the housing member; and the hole has a stepped tubular shape with a large-diameter portion on the side facing the front plate portion and a small-diameter portion on the side facing the rear plate member.