-
公开(公告)号：US20120145098A1
公开(公告)日：2012-06-14
申请号：US13405081
申请日：2012-02-24
IPC分类号： F01L9/02
CPC分类号： F01L1/3442 , F01L2001/34469 , F01L2001/34483 , F01L2800/00 , F02D13/0253 , Y02T10/18
摘要： In one example, a method is described for an engine with a hydraulically actuated phaser for adjusting cam timing. The phaser is controlled by a hydraulic spool valve, for example, having a de-energized position that results in hydraulic force urging the phaser to a base timing. When it is desired to operate the cam timing at base timing, rather then leave the spool valve in a de-energized position that can generate leakage, the spool valve is adjusted to near a null position to reduce the hydraulic pressure drop across the cam journal and thus reduce oil leakage. In this way, it is possible to maintain base timing, while also reducing leakage.
摘要翻译： 在一个示例中，描述了一种用于调节凸轮正时的具有液压致动相位器的发动机的方法。 移相器由液压滑阀控制，例如，具有导致液压力促使相位器到基准时间的断电位置。 当需要在基准正时操作凸轮正时时，而不是将滑阀留在可以产生泄漏的断电位置，滑阀被调节到接近零位置以减小凸轮轴颈上的液压压降 从而减少漏油。 以这种方式，可以保持基准时间，同时也减少泄漏。
-
公开(公告)号：US08733304B2
公开(公告)日：2014-05-27
申请号：US13405081
申请日：2012-02-24
IPC分类号： F01L1/34
CPC分类号： F01L1/3442 , F01L2001/34469 , F01L2001/34483 , F01L2800/00 , F02D13/0253 , Y02T10/18
摘要： In one example, a method is described for an engine with a hydraulically actuated phaser for adjusting cam timing. The phaser is controlled by a hydraulic spool valve, for example, having a de-energized position that results in hydraulic force urging the phaser to a base timing. When it is desired to operate the cam timing at base timing, rather then leave the spool valve in a de-energized position that can generate leakage, the spool valve is adjusted to near a null position to reduce the hydraulic pressure drop across the cam journal and thus reduce oil leakage. In this way, it is possible to maintain base timing, while also reducing leakage.
摘要翻译： 在一个示例中，描述了一种用于调节凸轮正时的具有液压致动相位器的发动机的方法。 移相器由液压滑阀控制，例如，具有导致液压力促使相位器到基准时间的断电位置。 当需要在基准正时操作凸轮正时时，而不是将滑阀留在可以产生泄漏的断电位置，滑阀被调节到接近零位置以减小凸轮轴颈上的液压压降 从而减少漏油。 以这种方式，可以保持基准时间，同时也减少泄漏。
-
公开(公告)号：US20110048346A1
公开(公告)日：2011-03-03
申请号：US12548216
申请日：2009-08-26
CPC分类号： F01L1/3442 , F01L2001/34469 , F01L2001/34483 , F01L2800/00 , F02D13/0253 , Y02T10/18
摘要： In one example, a method is described for an engine with a hydraulically actuated phaser for adjusting cam timing. The phaser is controlled by a hydraulic spool valve, for example, having a de-energized position that results in hydraulic force urging the phaser to a base timing. When it is desired to operate the cam timing at base timing, rather then leave the spool valve in a de-energized position that can generate leakage, the spool valve is adjusted to near a null position to reduce the hydraulic pressure drop across the cam journal and thus reduce oil leakage. In this way, it is possible to maintain base timing, while also reducing leakage.
摘要翻译： 在一个示例中，描述了一种用于调节凸轮正时的具有液压致动相位器的发动机的方法。 移相器由液压滑阀控制，例如，具有导致液压力促使相位器到基准时间的断电位置。 当需要在基准正时操作凸轮正时时，而不是将滑阀留在可以产生泄漏的断电位置，滑阀被调节到接近零位置以减小凸轮轴颈上的液压压降 从而减少漏油。 以这种方式，可以保持基准时间，同时也减少泄漏。
-
公开(公告)号：US08127725B2
公开(公告)日：2012-03-06
申请号：US12548216
申请日：2009-08-26
IPC分类号： F01L1/34
CPC分类号： F01L1/3442 , F01L2001/34469 , F01L2001/34483 , F01L2800/00 , F02D13/0253 , Y02T10/18
摘要： In one example, a method is described for an engine with a hydraulically actuated phaser for adjusting cam timing. The phaser is controlled by a hydraulic spool valve, for example, having a de-energized position that results in hydraulic force urging the phaser to a base timing. When it is desired to operate the cam timing at base timing, rather then leave the spool valve in a de-energized position that can generate leakage, the spool valve is adjusted to near a null position to reduce the hydraulic pressure drop across the cam journal and thus reduce oil leakage. In this way, it is possible to maintain base timing, while also reducing leakage.
摘要翻译： 在一个示例中，描述了一种用于调节凸轮正时的具有液压致动相位器的发动机的方法。 移相器由液压滑阀控制，例如，具有导致液压力促使相位器到基准时间的断电位置。 当需要在基准正时操作凸轮正时时，而不是将滑阀留在可以产生泄漏的断电位置，滑阀被调节到接近零位置以减小凸轮轴颈上的液压压降 从而减少漏油。 以这种方式，可以保持基准时间，同时也减少泄漏。
-
公开(公告)号：US06675764B2
公开(公告)日：2004-01-13
申请号：US10063010
申请日：2002-03-12
IPC分类号： F01L134
CPC分类号： F01L1/34 , F01L2001/34426 , F01L2001/3443 , F01L2001/34433 , F01L2101/00
摘要： An oil feed system for an internal combustion engine with a variable camshaft timing mechanism includes a bracket attached to the front structure of the engine at a final location which is determined in part by the interaction of the bracket and the camshaft adjuster to which it is furnishing oil. An oil feed spud which engages the adjuster will be ablated when the engine is initially operated, so as to provide a running clearance between the VCT mechanism and the oil supply spud, while the same time allowing piloting of the oil supply spud within the variable camshaft timing mechanism.
摘要翻译： 具有可变凸轮轴正时机构的内燃机的供油系统包括在最终位置处附接到发动机的前部结构的支架，该最终位置部分地由托架与其所提供的凸轮轴调节器的相互作用确定 油。 当发动机初始运转时，接合调节器的进油口将被消除，以便在VCT机构和供油口之间提供运行间隙，同时允许在可变凸轮轴内引导供油管脚 定时机制
-
-
-
-
搜索结果
5 条记录 (耗时 0.014 秒)