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公开(公告)号:US06382156B1
公开(公告)日:2002-05-07
申请号:US09881761
申请日:2001-06-18
IPC分类号: F01L1344
CPC分类号: F01L1/3442
摘要: A valve timing control device has a hydraulic pressure supply passage for supplying a hydraulic pressure used for releasing lock due to the lock member. If a hydraulic pressure applied to the hydraulic pressure supply passage reaches a required pressure, a hydraulic pressure subjected to a major diameter section of the lock member is larger than the sum total of the biasing force of two biasing members. Thus, the lock member is returned in a direction of releasing the lock due to the lock member. The sliding member is moved backward while the lock member is also moved backward. The stroke of the sliding member is extremely shorter than that of the lock pin. With a locked state of leaving the engagement of a minor diameter section of the lock member with an engagement hole, a rear end face of a minor diameter section of the sliding member abuts with a rear wall face 16c of a backward pressure chamber. Thus, it is difficult that a backward pressure space defined between the lock member and the sliding member communicates with a discharge hole. Since the opening area of the discharge hole substantially is throttled, a speed of discharging the backward pressure is considerably delayed.
摘要翻译: 气门正时控制装置具有液压供给通道,用于提供用于由锁定构件释放锁定的液压。 如果施加到液压供给通道的液压达到要求的压力,则经受锁定构件的大直径部分的液压压力大于两个偏置构件的偏置力的总和。 因此,锁定构件在由锁定构件释放锁定的方向返回。 当锁定构件也向后移动时,滑动构件向后移动。 滑动构件的行程比锁定销的行程短得多。 在锁定状态下,锁定构件的小直径部分的接合具有接合孔,滑动构件的小直径部分的后端面与后向压力室的后壁面16c抵接。 因此,限定在锁定构件和滑动构件之间的向后压力空间难以与排出孔连通。 由于排出孔的开口面积基本上被节流,所以后退压力的排出速度显着延迟。
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公开(公告)号:US06374788B1
公开(公告)日:2002-04-23
申请号:US09891172
申请日:2001-06-26
IPC分类号: F01L1344
CPC分类号: F01L1/3442
摘要: A valve timing control device has a purge path arranged at a vane of a rotor provided with a valve. The purge path communicates a retardation side oil hydraulic pressure chamber with an accommodation hole. Oil pressure in the retardation side oil hydraulic pressure chamber is supplied through the purge path to the accommodation hole to generate oil pressure acting to delay a release operation.
摘要翻译: 气门正时控制装置具有布置在设置有阀的转子的叶片处的吹扫通路。 吹扫路径将延迟侧油压缸室与容纳孔连通。 延迟侧油压室中的油压通过吹扫路径被供给到容纳孔,以产生用于延迟释放操作的油压。
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