| 摘要 |
PROBLEM TO BE SOLVED: To realize a valve opening/closing timing control device which is small-sized and has a simple structure without the necessity of a seal member. SOLUTION: The width of a receiving groove part 23 is set wider than that of a retraction groove part 34. A clearance d between a rotation transmitting member 3 for forming a hydraulic fluid chamber R0 and the sliding contact part of a rotary member 2 is set to 150μm or less. COPYRIGHT: (C)2004,JPO
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