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11. 发明申请

US20090044770A1 Camshaft phaser wiper seal with integral spring 审中-公开
标题翻译：凸轮轴相移刮水器密封带有一体弹簧
公开(公告)号：US20090044770A1
公开(公告)日：2009-02-19
申请号：US11891765
申请日：2007-08-13
申请人： Matthew T. Scott , David M. McCarthy , Thomas H. Lichti , Amanda M. Weiss
发明人： Matthew T. Scott , David M. McCarthy , Thomas H. Lichti , Amanda M. Weiss
IPC分类号： F01L1/344 , F01D11/00 , F04D29/00 , F16J15/16 , F01L1/34
CPC分类号： F01L1/3442 , F01L2001/34479 , Y10T74/2102
摘要： A wiper seal for preventing leakage of oil between advance and retard chambers formed between rotor vanes and stator lobes in a vane-type camshaft phaser is a monolithic structure made from a single material that includes a wiper element and a compressible spring element extending from the wiper element. The spring element is designed as a cantilevered arm and provides a sealing pressure to the wiper element. The wiper seal may further include a rib element as part of the monolithic structure that vertically extends the wiper element towards the spring element. The rib element assists in preventing over-compression of the cantilevered arm and in preventing tangling of a plurality of wiper seals during handling and shipping. The wiper seal is provided at the tip of each rotor vane and/or stator lobe of a vane-type camshaft phaser for varying the timing of combustion valves in an internal combustion engine.
摘要翻译：用于防止在叶片式凸轮轴相位器中形成在转子叶片和定子叶片之间形成的推进和延迟室之间的油泄漏的擦拭器密封件是由单一材料制成的整体结构，其包括刮水元件和从刮水器延伸的可压缩弹簧元件元件。弹簧元件设计为悬臂，并为刮水元件提供密封压力。擦拭器密封件还可以包括作为整体结构的一部分的肋元件，其将擦拭器元件垂直地延伸朝向弹簧元件。肋元件有助于防止悬臂的过度压缩并且防止在处理和运输期间多个擦拭器密封件的缠结。刮水器密封件设置在叶片型凸轮轴相移器的每个转子叶片的末端和/或定子叶片上，用于改变内燃机中的燃烧阀的时间。

12. 发明授权

US07404540B2 Primary pole piece for a solenoid actuator 失效
标题翻译：螺线管执行机构的主极片
公开(公告)号：US07404540B2
公开(公告)日：2008-07-29
申请号：US11345721
申请日：2006-02-02
申请人： Joseph D. Cocca , Dwight H. Overmoyer , Thomas H. Lichti , Jack E. Gerke
发明人： Joseph D. Cocca , Dwight H. Overmoyer , Thomas H. Lichti , Jack E. Gerke
IPC分类号： F16K31/02
CPC分类号： F16K31/0644 , F16K31/0655 , F16K31/0675 , H01F7/1607 , H01F2007/085
摘要： A primary pole piece (PPP) for an electrical solenoid linear actuator includes an inner skirt portion extending axially from a radial flange portion and having a substantially uniform cylindrical thickness and a non-uniform axial length. The skirt is formed into a plurality of “saw teeth” or other axially-extending and circumferentially tapered elements separated by axially extending notches or similar axial inlets along the terminal skirt edge. Whereas in the prior art the magnetic flux is intensified radially by conical formation of the skirt, in the present invention the magnetic flux is intensified azimuthally by being collected in and directed to terminal flats of the saw teeth. The entire PPP may be net-formed by conventional powdered metal press/sintering, requiring no post-forming machining. Preferably, the molded PPP is conventionally sintered to increase density and is impregnated for plating.
摘要翻译：用于电磁螺线管线性致动器的主极片（PPP）包括从径向凸缘部分轴向延伸并具有基本均匀的圆柱形厚度和不均匀轴向长度的内裙部。裙部形成多个“锯齿”或其它轴向延伸和周向的锥形元件，其沿端子裙边缘沿轴向延伸的凹口或相似的轴向入口分开。而在现有技术中，磁通通过裙部的锥形形成而径向增强，在本发明中，通过收集在锯齿的端子平面中并导向磁通量，磁通量以方位角增强。整个PPP可以通过常规的粉末金属压制/烧结网形成，不需要后成型加工。优选地，模制的PPP通常烧结以增加密度并浸渍用于电镀。

13. 发明授权

US5033327A Camshaft phasing drive with wedge actuators 失效
标题翻译：带楔形执行器的凸轮轴定相驱动
公开(公告)号：US5033327A
公开(公告)日：1991-07-23
申请号：US418018
申请日：1989-10-10
申请人： Thomas H. Lichti , Ronald A. Waydelis , Michael J. Niemiec , Mark A. Shost , Kenneth A. Kovacevich , Thomas G. Elphick
发明人： Thomas H. Lichti , Ronald A. Waydelis , Michael J. Niemiec , Mark A. Shost , Kenneth A. Kovacevich , Thomas G. Elphick
IPC分类号： F01L1/34 , F01L1/344 , F16D3/10
CPC分类号： F16D3/10 , F01L1/344 , F02B2275/18 , Y10T74/2101 , Y10T74/2102
摘要： A phase adjuster for engine camshafts and the like includes in a preferred embodiment a sprocket driving a camshaft attached hub through paired wedge packs that transfer torque and maintain a lash free connection. A plunger actuated by engine oil pressure and coating drive springs axially move alternate active wedges to oppositely vary the arcuate lengths of the wedge packs and thereby change the phase angle between the sprocket and camshaft. A three way valve shuts off pressure oil flow except when needed to advance the plunger, thus minimizing oil flow requirements.

14. 发明申请

US20100064996A1 Cam phaser helical bias spring having a square end for retention 有权
标题翻译：具有用于保持的方形端的凸轮相位器螺旋偏置弹簧
公开(公告)号：US20100064996A1
公开(公告)日：2010-03-18
申请号：US12283993
申请日：2008-09-17
申请人： Thomas H. Lichti , Alan G. Strandburg, III
发明人： Thomas H. Lichti , Alan G. Strandburg, III
IPC分类号： F01L1/34
CPC分类号： F01L1/3442 , F01L2001/34483
摘要： A helical phaser bias spring including at least one linear region and an adjacent region having a radius of curvature less than that of the helix. A channel in the phaser receives the linear region of the spring and adjacent region to lock the spring to the phaser at either the rotor or the stator. Preferably, the spring includes two linear regions separated by a bend of about 90°. Additional linear regions are possible, separated by right and/or other angle bends. In a phaser rotor or stator, the geometric shape required to hold a spring end having a flat is easier to form with powdered metal tooling or diecasting than is a circular, radial, or axial shape for receiving a spring tang as in the prior art, the packaging volume required for the spring is smaller, and spring friction is lowered.
摘要翻译：螺旋相位器偏置弹簧包括至少一个线性区域和具有小于螺旋曲率半径的曲率半径的相邻区域。移相器中的通道接收弹簧和相邻区域的线性区域，以将弹簧锁定到转子或定子处的相位器。优选地，弹簧包括由约90°的弯曲部分开的两个线性区域。额外的线性区域是可能的，由右侧和/或其他角度弯曲部分开。在相位器转子或定子中，如现有技术那样，用于容纳具有平坦的弹簧端的几何形状比用于接收弹簧柄的圆形，径向或轴向形状更容易用粉末金属模具或压铸形成，弹簧所需的包装体积较小，弹簧摩擦力降低。

15. 发明授权

US06742485B2 Cam phaser locking pin assembly guide 失效
标题翻译：凸轮移相器锁销总成指导
公开(公告)号：US06742485B2
公开(公告)日：2004-06-01
申请号：US10126398
申请日：2002-04-19
申请人： Thomas H. Lichti
发明人： Thomas H. Lichti
IPC分类号： F01L134
CPC分类号： F01L1/344 , F01L2001/34469
摘要： A vane-type cam phaser wherein a locking pin assembly is disposed between a rotor and a stator of the phaser to selectively couple the rotor and stator together under certain operating conditions, for example, during engine start-up. The central axis of the locking pin assembly is disposed in the rotor parallel to the rotational axis of the phaser. The pin is spring loaded in a default position and is guided through its axial movement by two cylindrical guide surfaces—an inner guide surface and an outer guide surface. The lengths of these guide surfaces are optimized to minimize binding and sluggish operation of the pin caused by lateral forces exerted on the pin by the stator when in operation. The outer guide surface to inner guide surface ratio (L/I) is preferably greater than 2.
摘要翻译：一种叶片型凸轮移相器，其中锁定销组件设置在相位器的转子和定子之间，以在例如发动机起动期间的某些操作条件下选择性地将转子和定子联接在一起。锁定销组件的中心轴线平行于移相器的旋转轴线设置在转子中。销弹簧加载在默认位置，并通过其两个圆柱形引导表面（内引导表面和外引导表面）引导其轴向运动。这些引导表面的长度被优化以最小化由于在操作时由定子施加在销上的横向力引起的销的结合和缓慢的操作。外引导面与内引导面的比（L / I）优选大于2。

16. 发明授权

US07958857B2 Cam phaser helical bias spring having a square end for retention 有权
标题翻译：具有用于保持的方形端的凸轮相位器螺旋偏置弹簧
公开(公告)号：US07958857B2
公开(公告)日：2011-06-14
申请号：US12283993
申请日：2008-09-17
申请人： Thomas H. Lichti , Alan G. Strandburg, III
发明人： Thomas H. Lichti , Alan G. Strandburg, III
IPC分类号： F01L1/34
CPC分类号： F01L1/3442 , F01L2001/34483
摘要： A helical phaser bias spring including at least one linear region and an adjacent region having a radius of curvature less than that of the helix. A channel in the phaser receives the linear region of the spring and adjacent region to lock the spring to the phaser at either the rotor or the stator. Preferably, the spring includes two linear regions separated by a bend of about 90°. Additional linear regions are possible, separated by right and/or other angle bends. In a phaser rotor or stator, the geometric shape required to hold a spring end having a flat is easier to form with powdered metal tooling or diecasting than is a circular, radial, or axial shape for receiving a spring tang as in the prior art, the packaging volume required for the spring is smaller, and spring friction is lowered.
摘要翻译：螺旋相位器偏置弹簧包括至少一个线性区域和具有小于螺旋曲率半径的曲率半径的相邻区域。移相器中的通道接收弹簧和相邻区域的线性区域，以将弹簧锁定到转子或定子处的相位器。优选地，弹簧包括由约90°的弯曲部分开的两个线性区域。额外的线性区域是可能的，由右侧和/或其他角度弯曲部分开。在相位器转子或定子中，如现有技术那样，用于容纳具有平坦的弹簧端的几何形状比用于接收弹簧柄的圆形，径向或轴向形状更容易用粉末金属模具或压铸形成，弹簧所需的包装体积较小，弹簧摩擦力降低。

17. 发明申请

US20080078343A1 Bias spring arbor for a camshaft phaser 失效
标题翻译：凸轮轴相移偏压弹簧
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。

18. 发明授权

US07117833B2 Readily-fillable hydraulic valve lifter assembly 有权
公开(公告)号：US07117833B2
公开(公告)日：2006-10-10
申请号：US10977071
申请日：2004-10-29
申请人： Mark J. Spath , Daniel F. Smith , Thomas H. Lichti
发明人： Mark J. Spath , Daniel F. Smith , Thomas H. Lichti
IPC分类号： F01L1/14
CPC分类号： F01L1/146 , F01L1/255 , F01L13/0005
摘要： A hydraulic valve lifter including venting means to assure venting of air through the lifter and filling thereof with oil during pre-start filling of the engine oil galleries after engine assembly. Patterning of a hemispherical pushrod seat surface, and/or patterning of either or both of the mating surfaces of a pushrod seat and a piston, permits air purged from the engine through a pushrod to be vented through the lifter. Such means may be temporary or permanent and may include coatings of the surfaces with materials that are destroyed by engine action after starting. Permanent means may include surface grooves in the mating surfaces and/or small-diameter passages between the hemispherical seat surface and the cylindrical outer surface of the pushrod seat. Venting means in accordance with the invention is useful for both valve-deactivating and non-valve-deactivating valve lifters.

19. 发明授权

US5119691A Hydraulic phasers and valve means therefor 失效
标题翻译：液压相位器和阀门装置
公开(公告)号：US5119691A
公开(公告)日：1992-06-09
申请号：US559243
申请日：1990-07-27
申请人： Thomas H. Lichti , Michael J. Niemiec
发明人： Thomas H. Lichti , Michael J. Niemiec
IPC分类号： F01L1/344 , F16D3/10
CPC分类号： F01L1/344 , F16D3/10 , F02B2275/18 , Y10T74/2101 , Y10T74/2102
摘要： A variable camshaft phaser (VCP) has various embodiments and features including inner and outer helical splines for phase changing and return springs mounted in pockets to shorten overall length and relieve lash take-up friction on the piston return strokes. A three-way feed-discharge valve limits hydraulic actuating oil flow to that required to operate the drive pistons for phase changing operation. The three-way valve may be carried in a srew or fastener that secures the phaser to a camshaft or other rotary member.
摘要翻译：可变凸轮轴相位器（VCP）具有各种实施例和特征，包括用于相位改变的内部和外部螺旋花键和安装在凹穴中的复位弹簧，以缩短总长度并减轻活塞返回冲程上的睫毛牵引摩擦。三通进给排气阀将液压执行机油的流量限制在操作驱动活塞以进行相变操作所需的流量。三通阀可以被携带在将相机固定到凸轮轴或其它旋转构件上的螺丝或紧固件中。

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