Patent ID: 8656876
Filing Date: 2014-02-25
Classification: F01L

Abstract:
1. A vane timing control apparatus for an internal combustion engine, wherein the valve timing control apparatus is supplied with hydraulic fluid from a supply source upon rotation of the internal combustion engine to control valve timing of a valve, which is opened or closed by a camshaft that is, in turn, driven by a torque transmitted from a crankshaft of the internal combustion engine, the valve timing control apparatus comprising: a housing that includes a recess, which is recessed in an inner surface of the housing, wherein the housing is adapted to be rotated synchronously with the crankshaft; a vane rotor that includes: wherein: a primary limiting member that is reciprocatably received in the receiving hole, wherein: a primary resilient member that urges the primary limiting member in the inserting direction, wherein: a secondary limiting member that is reciprocatably received in the receiving hole, wherein: a secondary resilient member that urges the secondary limiting member in the inserting direction, wherein: the relative slide gap is larger than the primary slide gap; a secondary slide gap is formed between the secondary limiting member and the receiving hole; and the relative slide Rap at a narrowest distance between the secondary limiting member and the primary limiting member is larger than the secondary slide gap at a broadest distance between the secondary limiting member and the receiving hole.