| 摘要 |
PURPOSE: A silent oil control valve structure is provided to minimize clash sound at the clash between a moving rod and a stopper by maximizing the repulsive force of a permanent magnet. CONSTITUTION: A first permanent magnet(102) is inserted in a moving rod(100) to operate the maximum repulsive force when a piston(21) is clashed with a stopper(22). The moving rod is forcibly inserted in the tip of a piston(21). A second permanent magnet(104) having the same polarity as the first permanent magnet is inserted inside the stopper near an OCV(Oil Control Valve) housing(20-1) to operate the maximum repulsive force when the moving rod is clashed with the stopper. Thereby, clash sound is minimized and the resonance of a spring is reduced.
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