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公开(公告)号：US07614372B2
公开(公告)日：2009-11-10
申请号：US11540152
申请日：2006-09-29
申请人： Thomas H. Lichti , Michael J. Fox
发明人： Thomas H. Lichti , Michael J. Fox
IPC分类号： F01L1/34
CPC分类号： F01L1/3442 , F01L2001/34453 , F01L2001/34479 , F01L2001/34483
摘要： A torque bias coil spring for a camshaft phaser disposed in an annular well formed in the phaser rotor and having a central arbor for supporting the spring. The radius of the central arbor is such that the spring has radial operating clearance of 5-10%, as in the prior art. However, the improved arbor includes regions of higher radius at the arbor ends supporting the innermost and outermost coils of the spring. These regions serve to prevent the spring from being laterally displaced during torsional motion, thus minimizing the relative motion at the spring contact points, reducing stress on the spring, and improving the efficiency of the spring by reducing frictional hysteresis.
摘要翻译： 一种用于凸轮轴相移器的扭矩偏置螺旋弹簧，其布置在形成在相位器转子中的环形井中并且具有用于支撑弹簧的中心心轴。 中心心轴的半径使得弹簧的径向工作间隙为5-10％，如现有技术。 然而，改进的心轴包括在支撑弹簧的最内和最外线圈的心轴端部较高半径的区域。 这些区域用于防止弹簧在扭转运动期间被横向移位，从而使弹簧接触点处的相对运动最小化，减少弹簧上的应力，并通过减小摩擦滞后来提高弹簧的效率。
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公开(公告)号：US5588404A
公开(公告)日：1996-12-31
申请号：US353776
申请日：1994-12-12
IPC分类号： F01L1/344
CPC分类号： F01L1/34406 , Y10T29/49231 , Y10T29/49826 , Y10T74/2102
摘要： A variable cam phaser has drive and driven members connected by helical splines of an annular phase control piston and a lash control piston, axial motion of which varies the angular phase relation between the drive and driven members. A single wave spring received in a groove in one of the pistons biases them apart to take up lash in the splines. A return spring biases the phase control piston to an initial phase setting. Pre-timing of the members is provided for by a driven (or drive) member comprising two components, a hub flange that supports the other member and a splined hub carried by and initially rotatable on a tubular protrusion of the hub flange. After assembly of the phasing mechanism, the hub is rotated on the hub flange to pre-time the initial phasing of the members. An end of the tubular protrusion is then deformed into a flange engaging an annular shoulder on the hub to lock the hub and hub flange members together and maintain the pre-timing. An annular cover is then installed and retained by a retaining ring to close a hydraulic pressure chamber and help support the members. Upon assembly to a camshaft, a center bolt clamps the cover, hub and hub flange to the camshaft and relieves the locking means from operational torque loads.
摘要翻译： 可变凸轮移相器具有通过环形相位控制活塞的螺旋花键和间隙控制活塞连接的驱动和驱动构件，其轴向运动改变了驱动构件和被驱动构件之间的角度相位关系。 接收在其中一个活塞中的凹槽中的单波形弹簧将它们分开偏压以在花键中卷起睫毛。 复位弹簧将相位控制活塞偏置到初始相位设置。 构件的预定时由包括两个部件的驱动（或驱动）构件提供，支撑另一个构件的轮毂凸缘和由轮毂凸缘的管状突起承载并最初可旋转的花键毂。 在相位机构的组装之后，轮毂在轮毂凸缘上旋转以预先准备构件的初始定相。 然后，管状突起的端部变形成与轮毂上的环形肩部接合的凸缘，以将轮毂和轮毂凸缘构件锁定在一起并保持预定时。 然后通过保持环安装并保持环形盖以关闭液压室并帮助支撑构件。 在组装到凸轮轴上时，中心螺栓将盖，轮毂和轮毂凸缘夹紧到凸轮轴，并且使锁定装置免于操作扭矩负载。
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公开(公告)号：US20080078343A1
公开(公告)日：2008-04-03
申请号：US11540152
申请日：2006-09-29
申请人： Thomas H. Lichti , Michael J. Fox
发明人： Thomas H. Lichti , Michael J. Fox
IPC分类号： F01L1/34
CPC分类号： F01L1/3442 , F01L2001/34453 , F01L2001/34479 , F01L2001/34483
摘要： A torque bias coil spring for a camshaft phaser disposed in an annular well formed in the phaser rotor and having a central arbor for supporting the spring. The radius of the central arbor is such that the spring has radial operating clearance of 5-10%, as in the prior art. However, the improved arbor includes regions of higher radius at the arbor ends supporting the innermost and outermost coils of the spring. These regions serve to prevent the spring from being laterally displaced during torsional motion, thus minimizing the relative motion at the spring contact points, reducing stress on the spring, and improving the efficiency of the spring by reducing frictional hysteresis.
摘要翻译： 一种用于凸轮轴相移器的扭矩偏置螺旋弹簧，其布置在形成在相位器转子中的环形井中并且具有用于支撑弹簧的中心心轴。 中心心轴的半径使得弹簧的径向工作间隙为5-10％，如现有技术。 然而，改进的心轴包括在支撑弹簧的最内侧和最外侧线圈的心轴端部较高半径的区域。 这些区域用于防止弹簧在扭转运动期间被横向移位，从而使弹簧接触点处的相对运动最小化，减少弹簧上的应力，并通过减小摩擦滞后来提高弹簧的效率。
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公开(公告)号：US20090031974A1
公开(公告)日：2009-02-05
申请号：US11881915
申请日：2007-07-30
申请人： Thomas H. Lichti , Daniel R. Cuatt
发明人： Thomas H. Lichti , Daniel R. Cuatt
IPC分类号： F01L1/344
CPC分类号： F01L1/34 , F01L1/344 , F01L1/352 , Y10T74/2102
摘要： An electromechanical camshaft phasing system comprising a first pinion gear mounted on the end of an engine camshaft and engaged by a worm gear mounted on a transverse shaft extending from and journalled by bearings in a phaser drive sprocket to cause the camshaft to rotate in response to the engine crankshaft. The first pinion gear is surrounded by a ring gear having a hub keyed to an armature or stator shaft of a motor mounted on the engine coaxially of the camshaft and first pinion gear. A second pinion gear mounted on the worm gear shaft engages the ring gear such that motor rotation of the ring gear about the first pinion gear causes rotation of the second pinion gear, worm gear, first pinion gear, and thus the camshaft with respect to the sprocket, thus varying the phase of the camshaft with respect to the crankshaft.
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公开(公告)号：US20080087241A1
公开(公告)日：2008-04-17
申请号：US11582087
申请日：2006-10-17
申请人： Elias Taye , Thomas H. Lichti , Daniel R. Cuatt , Bruno Lequesne
发明人： Elias Taye , Thomas H. Lichti , Daniel R. Cuatt , Bruno Lequesne
IPC分类号： F01L1/34
摘要： A camshaft phaser comprising a differential bevel gear arrangement to vary the phase relationship of a camshaft to a crankshaft in an internal combustion engine. In the differential gear system, a 45° beveled input gear is mounted parallel to and coaxial with a 45° beveled output gear. One or more 45° beveled spider gears is disposed in meshed relationship with the input and output gears in a gear pattern having a rectangular cross-sectional appearance. Rotation of the input gear causes an opposite rotation of the output gear. The phase relationship between the input and output gears may be varied by varying the position of the spider gear. The input gear and spider gears may be driven via a sprocket in time with the crankshaft in a plurality of arrangements.
摘要翻译： 一种凸轮轴相移器，包括用于改变内燃机中的凸轮轴与曲轴的相位关系的差速锥齿轮装置。 在差速齿轮系统中，45°斜面输入齿轮与45°斜面输出齿轮并联安装并与其同轴。 一个或多个45°斜角齿轮与具有矩形横截面外观的齿轮图案中的输入和输出齿轮呈啮合关系。 输入齿轮的旋转会导致输出齿轮的相反旋转。 输入和输出齿轮之间的相位关系可以通过改变蜘蛛齿轮的位置来改变。 输入齿轮和齿轮可以通过链轮在多个布置中与曲轴一起被驱动。
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公开(公告)号：US5163872A
公开(公告)日：1992-11-17
申请号：US758441
申请日：1991-09-05
IPC分类号： F01L1/344
CPC分类号： F01L1/34406 , F02B2275/18
摘要： A variable camshaft phaser (VCP) has lash take up drive piston assemblies with inner and outer helical splines for phase changing and return springs mounted in pockets in the pistons to shorten overall length for a compact unit and also relieve lash take-up friction on the piston return strokes. Numerous other features are included. A three-way feed-discharge valve limits oil flow to that necessary to operate the drive pistons for phasing.
摘要翻译： 可变凸轮轴相位器（VCP）具有撬动驱动活塞组件，内部和外部螺旋花键用于相位改变和复位弹簧，安装在活塞的凹槽中，以缩短紧凑单元的总长度，并且还可以减轻睫毛夹紧 活塞回程。 还包括许多其他功能。 三通进给排气阀将油流量限制在操作驱动活塞进行定相所需的油流量。
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公开(公告)号：US08662039B2
公开(公告)日：2014-03-04
申请号：US13049167
申请日：2011-03-16
CPC分类号： F01L1/344 , F01L1/3442 , F01L2001/34426 , F01L2001/3443 , F01L2001/34433 , F01L2001/34453 , F01L2001/34479
摘要： A camshaft phaser is provided for varying the phase relationship between a crankshaft and a camshaft in an engine. The camshaft phaser includes a stator having lobes. A rotor is disposed within the stator includes vanes interspersed with the stator lobes to define alternating advance and retard chambers. A lock pin is provided for selective engagement with a lock pin seat for preventing relative rotation between the rotor and the stator. Pressurized oil disengages the lock pin from the seat while oil is vented for engaging the lock pin with the seat. A phase relationship control valve is coaxial with the rotor and controls the flow of oil into and out of the chambers. A lock pin control valve is coaxial with the phase relationship control valve and controls the flow of oil to and from the lock pin. The control valves are operational independent of each other.
摘要翻译： 提供了一种用于改变发动机中的曲轴和凸轮轴之间的相位关系的凸轮轴相移器。 凸轮轴相位器包括具有凸角的定子。 转子设置在定子内，包括与定子瓣分布的叶片，以限定交替的前进和延迟室。 提供一个锁销，用于选择性地与锁销座接合，以防止转子和定子之间的相对转动。 当油被排出以将锁定销与座接合时，加压油将锁定销从座椅上解开。 相位关系控制阀与转子同轴，并控制油进出腔的流量。 锁销控制阀与相位关系控制阀同轴并控制油和/或从锁销的流动。 控制阀彼此独立运行。
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公开(公告)号：US07475661B2
公开(公告)日：2009-01-13
申请号：US11582087
申请日：2006-10-17
申请人： Elias Taye , Thomas H. Lichti , Daniel R. Cuatt , Bruno Lequesne
发明人： Elias Taye , Thomas H. Lichti , Daniel R. Cuatt , Bruno Lequesne
IPC分类号： F01L1/34
摘要： A camshaft phaser comprising a differential bevel gear arrangement to vary the phase relationship of a camshaft to a crankshaft in an internal combustion engine. In the differential gear system, a 45° beveled input gear is mounted parallel to and coaxial with a 45° beveled output gear. One or more 45° beveled spider gears is disposed in meshed relationship with the input and output gears in a gear pattern having a rectangular cross-sectional appearance. Rotation of the input gear causes an opposite rotation of the output gear. The phase relationship between the input and output gears may be varied by varying the position of the spider gear. The input gear and spider gears may be driven via a sprocket in time with the crankshaft in a plurality of arrangements.
摘要翻译： 一种凸轮轴相移器，包括用于改变内燃机中的凸轮轴与曲轴的相位关系的差速锥齿轮装置。 在差速齿轮系统中，45°斜面输入齿轮与45°斜面输出齿轮并联安装并与其同轴。 一个或多个45°斜角齿轮与具有矩形横截面外观的齿轮图案中的输入和输出齿轮呈啮合关系。 输入齿轮的旋转会导致输出齿轮的相反旋转。 输入和输出齿轮之间的相位关系可以通过改变蜘蛛齿轮的位置来改变。 输入齿轮和齿轮可以通过链轮在多个布置中与曲轴一起被驱动。
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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：US08534246B2
公开(公告)日：2013-09-17
申请号：US13082458
申请日：2011-04-08
IPC分类号： F01L1/34
CPC分类号： F01L1/3442 , F01L2001/34433 , F01L2001/34459 , F01L2001/34466 , F01L2001/34483
摘要： A camshaft phaser is provided for varying the phase relationship between a crankshaft and a camshaft in an engine. The camshaft phaser includes a stator having lobes. A rotor disposed within the stator includes vanes interspersed with the stator lobes to define alternating advance and retard chambers. A lock pin is provided for selective engagement with a lock pin seat for preventing relative rotation between the rotor and stator. Pressurized oil disengages the lock pin from the seat while oil is vented for engaging the lock pin with the seat. A phase relationship control valve is located coaxially within the rotor to control the flow of oil into and out of the chambers. A lock pin oil passage communicates oil to and from the lock pin based on input from a lock pin control valve located outside of the camshaft phaser. The control valves are operational independent of each other.
摘要翻译： 提供了一种用于改变发动机中的曲轴和凸轮轴之间的相位关系的凸轮轴相移器。 凸轮轴相位器包括具有凸角的定子。 设置在定子内的转子包括散布有定子瓣的叶片，以限定交替的前进和延迟室。 提供一个锁销，用于选择性地与锁销座接合，以防止转子和定子之间的相对转动。 当油被排出以将锁定销与座接合时，加压油将锁定销从座椅上解开。 相位关系控制阀同轴地位于转子内，以控制进入和离开腔室的油流。 锁定销油通道根据位于凸轮轴相位器外部的锁定销控制阀的输入将油与油路连通。 控制阀彼此独立运行。
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