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1.发明授权Cam phaser apparatus having a stator integral with a back plate or a front cover plate 失效具有与后板或前盖板一体化的定子的凸轮相位器装置公开(公告)号：US06412462B1
公开(公告)日：2002-07-02
申请号：US09484800
申请日：2000-01-18
IPC分类号： F01L134
CPC分类号： F01L1/3442 , F01L2001/34469 , F01L2001/34479 , F01L2101/00 , Y10T74/2102
摘要： A cam phaser wherein the stator is integral with either the back plate or the front cover plate. The integral stator may be formed by any desired forming technique, such as, for example, by machining, casting, welding, or injection molding. Preferably, however, the integral stator is formed in a single molding step by powdered metal forming using powdered aluminum. Cap seals are provided for sealing the hydraulic chambers of the cam phaser.
摘要翻译： 凸轮移相器，其中定子与后板或前盖板是一体的。 整体定子可以通过任何所需的成形技术形成，例如通过机械加工，铸造，焊接或注模成型。 然而，优选地，整体定子通过使用粉末状铝的粉末金属成型在单个模制步骤中形成。 提供盖密封件用于密封凸轮移相器的液压室。
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公开(公告)号：US06308672B1
公开(公告)日：2001-10-30
申请号：US09632990
申请日：2000-08-04
IPC分类号： F01L1344
CPC分类号： F01L1/34 , F01L2001/028 , F01L2001/34426 , F01L2001/34433 , F01L2001/34436 , F01L2001/3444 , F01L2001/34496 , F01L2820/041
摘要： A modular vane cam phaser assembly for controllably and continuously varying the rotational phase between a camshaft and the crankshaft of a reciprocating internal combustion engine. The module includes a housing mountable to the front of an engine head, the housing supporting on an outer surface thereof a programmably-controllable spool valve for directing pressurized oil to an oil commutator extending into both the housing and a vane phaser wherein a rotor is bolted to the camshaft and a stator is bolted to a timing sprocket. The oil is distributed by the spool valve to opposite sides of the rotor vanes in response to signals generated by an induction cam rotation sensor and by other engine components and processed by a powertrain control module to advance or retard the opening of intake and/or exhaust valves in the engine. The housing is provided with internal passages for supplying oil from an engine port to the spool valve. Preferably, the oil is filtered by a thimble screen as it enters the housing.
摘要翻译： 一种用于可控地和连续地改变往复式内燃机的凸轮轴和曲轴之间的旋转相位的模块化叶片凸轮移相器组件。 模块包括可安装到发动机头的前部的壳体，壳体的外表面上支撑有可编程控制的滑阀，用于将加压油引导到延伸到壳体中的油换向器和叶片相位器，其中转子被螺栓连接 到凸轮轴，并且定子被螺栓连接到定时链轮。 油通过滑阀分配到转子叶片的相对侧，以响应由感应凸轮旋转传感器和其它发动机部件产生的信号，并由动力系控制模块处理，以推进或延迟进气和/或排气的打开 发动机中的阀门。 壳体设置有用于将油从发动机端口供给到滑阀的内部通道。 优选地，当其进入壳体时，油管被套管筛过滤。
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公开(公告)号：US06176210B1
公开(公告)日：2001-01-23
申请号：US09395124
申请日：1999-09-14
IPC分类号： F01L134
CPC分类号： F01L1/3442 , F01L1/344 , F01L2820/041 , Y10T74/2102
摘要： An axially-compact camshaft phaser wherein the phaser bearing flange on the camshaft, connected to a timing chain sprocket or cam drive gear, is axially inverted in comparison to prior art cam phasers so that the bearing flange extends axially and inwardly of the phaser stator and rotor such that radial drive load on the phaser is sustained within the hydraulic portion of the phaser rather than externally thereof. The overall axial length of the phaser may be reduced thereby by about 25% relative to some prior art phasers and the Phaser Envelop volume may be reduced by 15% while maintaining an equivalent torque capacity.
摘要翻译： 轴向紧凑的凸轮轴相位器，其中连接到正时链轮链轮或凸轮驱动齿轮的凸轮轴上的相位器轴承凸缘与现有技术的凸轮相位器相比轴向反转，使得轴承凸缘沿相对于定子的轴向和内侧延伸， 转子，使得相位器上的径向驱动负载维持在相位器的液压部分内，而不是在其外部。 相对于一些现有技术的相位器，相位器的总体轴向长度可以减小约25％，并且在保持等效转矩容量的同时，相位器包络体积可以减少15％。
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4.发明授权Cam phaser having a torsional bias spring to offset retarding force of camshaft friction 有权凸轮相位器具有扭转偏置弹簧以抵消凸轮轴摩擦的延迟力公开(公告)号：US06276321B1
公开(公告)日：2001-08-21
申请号：US09481198
申请日：2000-01-11
IPC分类号： F01L1344
CPC分类号： F01L1/3442 , F01L2001/34483 , Y10T74/2102
摘要： A vane-type camshaft phaser wherein a coil spring under torsional compression or extension is disposed coaxially within an annular cavity formed in either the cover plate or back plate. A first end of the spring is connected to the cover plate or back plate, and a second end extends from the cavity and is connected to the phaser rotor. The spring constant is selected such that a biasing torque is exerted on the rotor in the valve-opening-advancing direction which counters the inherent valve-opening-retarding torque bias of the camshaft during operation. The bias spring permits more rapid response to a demand on the cam phaser for advancing valve timing, and is also useful in orienting the camshaft advantageously, especially an exhaust valve camshaft, in a timing-advanced position when the engine is shut off or operating at low engine speed.
摘要翻译： 一种叶片式凸轮轴相位器，其中在扭转压缩或延伸的螺旋弹簧同轴地设置在形成在盖板或背板中的环形空腔内。 弹簧的第一端连接到盖板或背板，并且第二端从空腔延伸并连接到移相器转子。 选择弹簧常数，使得在操作期间在凸轮轴的固有的开阀延迟转矩偏置中反映阀开启前进方向上的转子施加偏压力矩。 偏置弹簧允许更快速地响应对凸轮相位器的要求，以提高气门正时，并且也可用于当发动机关闭或操作时在有利地定位凸轮轴，特别是排气门凸轮轴处于定时提前位置 低发动机转速。
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公开(公告)号：US08397687B2
公开(公告)日：2013-03-19
申请号：US12912338
申请日：2010-10-26
申请人： Thomas Howard Lichti
发明人： Thomas Howard Lichti
IPC分类号： F01L1/34
CPC分类号： F01L1/3442
摘要： A camshaft phaser is provided for varying the phase relationship between a crankshaft and a camshaft in an internal combustion engine. The camshaft phaser includes a stator having a plurality of lobes. A rotor is disposed within the stator and includes a plurality of vanes interspersed with the stator lobes to define alternating advance and retard chambers. A bushing adaptor of the camshaft phaser is disposable axially within a pocket of the camshaft and is disposed axially within the rotor. The bushing adaptor defines at least in part a supply passage for communicating pressurized oil from the internal combustion engine to a control valve, an advance passage for selectively communicating pressurized oil from the control valve to the advance chambers, and a retard passage for selectively communicating pressurized oil from the control valve to the retard chambers.
摘要翻译： 提供了一种用于改变内燃机中曲轴和凸轮轴之间的相位关系的凸轮轴相移器。 凸轮轴相移器包括具有多个凸角的定子。 转子设置在定子内，并且包括多个叶片，散布有定子瓣以限定交替的前进和延迟室。 凸轮轴相移器的衬套适配器在凸轮轴的凹槽内是一次性轴向放置的并且轴向设置在转子内。 衬套适配器至少部分地限定用于将加压油从内燃机连接到控制阀的供给通道，用于将加压油从控制阀选择性地连通到前进室的前进通道，以及用于选择性地连通加压 油从控制阀到延迟室。
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公开(公告)号：US06209499B1
公开(公告)日：2001-04-03
申请号：US09399463
申请日：1999-09-20
IPC分类号： F01L1245
CPC分类号： F01L1/25 , F01L1/18 , F01L1/2411 , F01L1/245
摘要： A C-clip retainer is provided in a groove of a piston, such as for an engine hydraulic valve lash adjuster, to allow installation and removably retain the piston in a cylinder of an associated assembly. The groove has a novel shape including an inner surface that is angled relative to a longitudinal axis of the piston to provide a larger groove diameter at a first axial end surface and a smaller diameter at an opposite second axial end surface of the groove. Upon installation, the clip is urged into the smaller diameter, allowing easier installation, but upon removal the clip is expanded by forcing it to the larger diameter, thereby increasing the retention force on the piston. The first axial end surface may also be formed with a back angle that reduces forces of the associated cylinder edge that tend to compress the retainer into the groove, thus further increasing the piston retention force.
摘要翻译： C形夹保持器设置在活塞的凹槽中，例如用于发动机液压阀间隙调节器，以允许安装并将活塞可拆卸地保持在相关组件的气缸中。 凹槽具有新颖的形状，其包括相对于活塞的纵向轴线成角度的内表面，以在凹槽的相对的第二轴向端表面处在第一轴向端面处提供更大的凹槽直径和较小的直径。 在安装时，夹子被推入更小的直径，允许更容易的安装，但是在移除时，夹子通过迫使其扩大到更大的直径而膨胀，从而增加了活塞上的保持力。 第一轴向端面还可以形成有后角，其减小倾向于将保持器压入槽中的相关联的气缸边缘的力，从而进一步增加活塞保持力。
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公开(公告)号：US5937806A
公开(公告)日：1999-08-17
申请号：US41650
申请日：1998-03-13
申请人： Bohdan Michael Lyko , Thomas Howard Lichti , Daniel Richard Cuatt , John S. Lylak, Jr. , Ivan Rafael Samalot
发明人： Bohdan Michael Lyko , Thomas Howard Lichti , Daniel Richard Cuatt , John S. Lylak, Jr. , Ivan Rafael Samalot
CPC分类号： F01L1/344
摘要： Internal combustion engine variable valve timing control with a camshaft phaser for varying rotational phase between a camshaft and a crankshaft in response to a control command determined through a hybrid control strategy without resort to direct temperature measurement. For a range of phase errors requiring high response compensation, a control strategy emphasizing rapid response, such as a bang-bang strategy, is deployed. For a range of phase errors requiring high accuracy compensation, a control strategy emphasizing high precision, such as a proportional-plus-integral strategy, is deployed. The phase error ranges are updated periodically to account for changes in operating conditions. The control command includes an offset which varies in response to a periodically estimated control deadband to affirmatively account for the deadband with each issued control command.
摘要翻译： 内燃机可变气门正时控制，具有用于响应于通过混合控制策略确定的控制命令而在凸轮轴和曲轴之间改变旋转相位的凸轮轴相位器，而不需要直接测量温度。 对于需要高响应补偿的一系列相位误差，部署了强调快速响应的控制策略，例如爆炸策略。 对于需要高精度补偿的一系列相位误差，部署了强调高精度的控制策略，如比例加积分策略。 定期更新相位误差范围，以解决运行条件的变化。 控制命令包括响应于周期性估计的控制死区而变化的偏移，以肯定地说明每个发出的控制命令的死区。
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