Valve timing control apparatus
AssigneeAisin Seiki Kabushiki Kaisha
InventorsIchiro Kimura, Yoshiyuki Kawai
Life of this patent
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Abstract
A valve timing control apparatus includes a driving rotation member, a driven rotation member, an advance angle chamber displacing a rotation phase of the driven rotation member relative to the driving rotation member in an advance angle direction, a retard angle chamber displacing the relative rotation phase in a retard angle direction, a groove provided on at least one of an inner surface of the driving rotation member and an outer surface of the driven rotation member for supplying the hydraulic fluid to a sliding contact portion formed by the inner surface of the driving rotation member and the outer surface of the driven rotation member, an advance angle oil passage, a retard angle oil passage, and a groove oil passage for supplying the hydraulic fluid to the groove.
Claims9
A valve timing control apparatus comprising:
- a driving rotation member rotating around an axis of a camshaft opening or closing a valve of an internal combustion engine in synchronization with a crankshaft of the internal combustion engine;
- a driven rotation member relatively rotating with the driving rotation member inside the driving rotation member, the driven rotation member integrally rotating with the camshaft;
- an advance angle chamber provided between the driving rotation member and the driven rotation member and displacing a rotation phase of the driven rotation member relative to the driving rotation member in an advance angle direction when a hydraulic fluid is supplied thereto;
- a retard angle chamber provided between the driving rotation member and the driven rotation member and displacing the rotation phase of the driven rotation member relative to the driving rotation member in a retard angle direction when the hydraulic fluid is supplied thereto;
- a groove provided on at least one of an inner surface of the driving rotation member and an outer surface of the driven rotation member for supplying the hydraulic fluid to a sliding contact portion formed by the inner surface of the driving rotation member and the outer surface of the driven rotation member;
- an advance angle oil passage for supplying the hydraulic fluid to the advance angle chamber;
- a retard angle oil passage for supplying the hydraulic fluid to the retard angle chamber;
- and
- a groove oil passage for supplying the hydraulic fluid to the groove.
Dependencies are inferred from the claim text.