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公开(公告)号：US06405696B1
公开(公告)日：2002-06-18
申请号：US09894772
申请日：2001-06-28
申请人： Dominic Borraccia , Matthew T. Scott , Jason M. Urckfitz , Timothy M. Nieves , Thomas H. Lichti
发明人： Dominic Borraccia , Matthew T. Scott , Jason M. Urckfitz , Timothy M. Nieves , Thomas H. Lichti
IPC分类号： F01L1344
CPC分类号： F01L1/34 , F01L1/34406 , F01L2103/00
摘要： An improved splined cam phaser includes four assemblies: a sprocket assembly, an inner hub assembly, a cover assembly, and a piston assembly. The joined assemblies provide phaser function at reduced manufacturing cost. The component parts of the assemblies are re-configured from analogous parts in the prior art cam phaser to permit much of the improved phaser to be manufactured inexpensively by powdered metal forming or by stamping or drawing from sheet metal, in contrast with the prior art phaser wherein all parts are formed expensively either by machining from forged blanks or by investment casting. These changes reduce not only the cost of manufacture but also reduce the weight and axial length of the phaser, an important customer acceptance criterion, and improve the speed of response. Further, the proportions of some parts are altered such that all radial and axial loads are borne by a single large bearing in place of two small sequential bearings in the prior art phaser, thus reducing variability in axial alignment of the component parts.
摘要翻译： 改进的花键凸轮移相器包括四个组件：链轮组件，内毂组件，盖组件和活塞组件。 连接的组件以降低的制造成本提供相位器功能。 组件的组成部分由现有技术的凸轮相位器中的类似部件重新构成，以允许大量改进的相位器通过粉末金属成形或通过冲压或拉制从金属板而廉价地制造，与现有技术的相位器 其中所有零件都是通过从锻造坯料或熔模铸造加工形成的。 这些变化不仅降低了制造成本，而且降低了移相器的重量和轴向长度，重要的客户接受标准，并提高了响应速度。 此外，一些部件的比例被改变，使得所有的径向和轴向载荷代替现有技术的相位器中的两个小的顺序轴承由单个大的轴承承担，从而减少了部件的轴向对准的可变性。
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公开(公告)号：US06386166B1
公开(公告)日：2002-05-14
申请号：US09892948
申请日：2001-06-27
IPC分类号： F01L1344
CPC分类号： F01L1/46 , F01L1/34 , F01L1/34403
摘要： An improved splined cam phaser includes four assemblies: a sprocket assembly, an inner hub assembly, a cover assembly, and a piston assembly. The joined assemblies provide phaser function at reduced manufacturing cost. The piston assembly is formed, at least in part, of a plastic polymer wherein the seal groove is net formed.
摘要翻译： 改进的花键凸轮移相器包括四个组件：链轮组件，内毂组件，盖组件和活塞组件。 连接的组件以降低的制造成本提供相位器功能。 活塞组件至少部分地由塑料聚合物形成，其中密封槽是网形成的。
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公开(公告)号：US06883478B2
公开(公告)日：2005-04-26
申请号：US10439384
申请日：2003-05-16
CPC分类号： F01L1/3442 , F01L1/022 , F01L1/024 , F01L2001/34469 , F01L2101/00 , Y10T74/2102
摘要： A fast-acting rotor-locking mechanism for a vane-type camshaft phaser. A straight-sided locking pin is disposed in a bushing in the rotor and is urged into a sprocket well by a return spring. A pad disposed at the bottom of the well is a travel stop for the pin. When the pin is fully seated against the pad, the pad covers a portion of the end of the pin. The uncovered portion of the pin end, exposed to oil pressure for unlocking the pin when it is fully seated, is decreased over the prior art pin, permitting use of a lighter locking spring having a lower spring rate. Because of the lighter locking spring, the pin accelerates more rapidly and unlocks significantly faster than in a comparable prior art phaser.
摘要翻译： 用于叶片式凸轮轴相位器的快速转子锁定机构。 直立的锁定销设置在转子中的衬套中，并通过复位弹簧推动到链轮井中。 设置在井底部的垫是用于销的行进止动件。 当销完全靠在垫上时，垫覆盖销的端部的一部分。 当销钉完全就位时，销端未暴露于油压以释放销的未覆盖部分比现有技术的销减少，允许使用具有较低弹簧刚度的较轻的锁定弹簧。 由于较轻的锁定弹簧，该销的加速更快，并且比现有技术的相位器中明显更快地解锁。
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公开(公告)号：US06732691B1
公开(公告)日：2004-05-11
申请号：US10455677
申请日：2003-06-05
IPC分类号： F01L134
CPC分类号： F01L1/34 , F01L2201/00 , F01L2800/00 , F01L2820/041
摘要： A camshaft phaser control system including a camshaft target wheel, the target wheel having first and second teeth for measuring camshaft oscillatory instability. The trailing edge of the first tooth coincides with the negative camshaft oscillation peak, and the trailing edge of the second tooth coincides with the positive camshaft oscillation peak. During each camshaft rotation, each tooth initiates an input signal to generate first and second input signals in known fashion. During crankshaft rotation, a third input signal is generated corresponding to the rotational position of the crankshaft. From these signals, operational camshaft oscillatory instability is computed by an engine monitoring system (EMS). Any deviation from the operational instability while the engine is operating is a direct measurement of oscillatory instability of the camshaft about its nominal holding position. A change in oscillatory instability is inferred as system malfunction, permitting defensive action to be taken by the EMS.
摘要翻译： 一种凸轮轴相位器控制系统，包括凸轮轴目标轮，所述目标轮具有用于测量凸轮轴振荡不稳定性的第一和第二齿。 第一齿的后缘与负凸轮轴振动峰值重合，第二齿的后缘与正凸轮轴振荡峰值重合。 在每个凸轮轴旋转期间，每个齿以已知的方式启动输入信号以产生第一和第二输入信号。 在曲轴旋转期间，对应于曲轴的旋转位置产生第三输入信号。 从这些信号，运行的凸轮轴振荡不稳定性由发动机监控系统（EMS）计算。 在发动机运转时与运行不稳定性的任何偏差是直接测量凸轮轴在其标称保持位置上的振荡不稳定性。 振荡不稳定性的变化被推定为系统故障，允许EMS采取防御性措施。
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公开(公告)号：US20100162977A1
公开(公告)日：2010-07-01
申请号：US12633406
申请日：2009-12-08
IPC分类号： F01L1/04
CPC分类号： F01L1/3442 , F01L1/047 , F01L1/08 , F01L2103/00 , F01L2800/15
摘要： A method for intentionally imbalancing one or more mass elements of a camshaft assembly to provide overall rotational balance to the assembly, also referred to herein as “zero balance”. Such intentional imbalance may be imparted to any element of a camshaft assembly. In a currently-preferred embodiment, one or more components of an improved camshaft phaser assembly are manufactured as rotationally unbalanced, either by intentionally forming an unbalanced component such as a sprocket wheel having added material or by removing non-functional material from an otherwise standard component. Because the camshaft phaser assembly has a unique and fixed angular relationship to the camshaft, zero balance can be readily and repeatedly achieved for all camshaft assemblies by correct manufacture of parts without requiring separate balancing for each individual camshaft assembly as manufactured.
摘要翻译： 用于有意地不平衡凸轮轴组件的一个或多个质量元件以为组件提供整体旋转平衡的方法，这里也称为“零平衡”。 这种有意的不平衡可以赋予凸轮轴组件的任何元件。 在目前优选的实施例中，改进的凸轮轴相位器组件的一个或多个部件被制造为旋转不平衡的，无论是通过有意地形成不平衡部件，例如具有附加材料的链轮或通过从另一标准部件去除非功能材料 。 由于凸轮轴相位器组件与凸轮轴具有独特的和固定的角度关系，所以通过正确的零件制造，可以方便和重复地为所有凸轮轴组件实现零平衡，而不需要为制造的每个单独的凸轮轴组件进行单独的平衡。
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