Patent ID: 6412463
Filing Date: 2002-07-02
Classification: F01L,Y10T

Abstract:
A valve timing regulation device comprising:a first rotating body having a plurality of shoes on an inner peripheral face, the first rotating body being rotated by an output of an internal combustion engine; a second rotating body having a plurality of vanes on an outer peripheral face of a boss, the second rotating body stored to rotate relative to an inner section of the first rotating body and connected directly to a camshaft of a system opening and closing at least one of an air-intake or exhaust valve of the internal combustion engine; a retarding oil pressure chamber and an advancing oil pressure chamber formed between the first rotating body and the second rotating body, and between the shoes and vanes; a plurality of seal mounting grooves individually provided on the tips of the shoes or the vanes; a plurality of seal members individually inserted into the seal mounting grooves, each seal member having an indented inner section; a plurality of plate springs individually biasing the seal members in a direction of abutment with an inner peripheral face of the first rotating body or with an outer peripheral face of the boss of the second rotating body, opposite ends of the plate springs individually fitted into the indented inner sections of the seal members, each plate spring being out of contact with opposite walls in a longitudinal direction of the indented inner section; and a plurality of spring fixing means individually provided on the seal members which suppress detachment of the plate springs and allow displacement of the plate springs due to elastic deformation of the plate springs.