Patent ID: 8171904
Filing Date: 2012-05-08
Classification: F01L

Abstract:
1. A valve timing control apparatus for an internal combustion engine, comprising: a housing body having a hollow cylindrical shape, wherein the housing body is formed integrally with a shoe at an inside periphery of the housing body, wherein the shoe projects inwardly in a radial direction of the housing body, and wherein the housing body is formed with a sealing recess at an axial end of the housing body; a vane rotor rotatably mounted in the housing body, wherein the vane rotor includes a vane, wherein the vane and the shoe define an advance chamber and a retard chamber between the vane rotor and housing body, and wherein the advance chamber and the retard chamber are adapted to supply and drainage of fluid; an engagement member mounted in the vane rotor for moving in an axial direction of the vane rotor selectively out of and into the vane rotor according to a state of operation of the internal combustion engine; a first plate fixedly inserted in the sealing recess of the housing body, and provided with an engagement recess portion arranged to receive insertion of the engagement member, the first plate sealing an axial end of the advance chamber and an axial end of the retard chamber; and a second plate sealing another axial end of the advance chamber and another axial end of the retard chamber.