Hydraulic tensioner with pivotal mount
    61.
    发明授权
    Hydraulic tensioner with pivotal mount 有权
    液压张紧器带枢轴安装

    公开(公告)号:US06312351B1

    公开(公告)日:2001-11-06

    申请号:US09387781

    申请日:1999-09-01

    Abstract: A hydraulic tensioner includes a piston that is pivotally mounted to a tensioner arm. The piston is slidably received within a hollow body that is pivotally mounted to a mounting block or engine. In different embodiments, the body is mounted to the tensioner arm while the piston is biased against the mounting block or pivotally connected to the mounting block or engine.

    Abstract translation: 液压张紧器包括枢转地安装到张紧器臂的活塞。 活塞可滑动地容纳在可枢转地安装到安装块或发动机的空心体内。 在不同的实施例中,主体安装到张紧器臂上,同时活塞偏压安装块或枢转地连接到安装块或发动机。

    On demand vehicle drive system
    62.
    发明授权
    On demand vehicle drive system 失效
    车载驱动系统

    公开(公告)号:US06263995B1

    公开(公告)日:2001-07-24

    申请号:US09327140

    申请日:1999-06-07

    Abstract: An on demand vehicle drive system monitors vehicle performance and operating conditions and controls torque delivery to the vehicle wheels. The system includes a plurality of speed and position sensors, a transfer case having primary and secondary output shafts driving primary and secondary axles and a microcontroller. The sensors include a vehicle speed sensor, a pair of primary and secondary drive shaft speed sensors, and brake and driveline status sensors. The transfer case includes a modulating electromagnetic clutch controlled by the microcontroller which is incrementally engaged to transfer torque from the primary output shaft to the secondary output shaft. When the speed of either the front or the rear drive shafts overruns, i.e., exceeds, the speed of the other drive shaft by a predetermined value related to the vehicle speed, indicating that wheel slip is present, clutch current is incrementally increased to increase clutch engagement and torque transfer to the secondary axle. When wheel slip is reduced below the predetermined value the current to the clutch is incrementally reduced. The method of operating such a system is also described.

    Abstract translation: 按需车辆驱动系统监视车辆性能和操作条件并控制向车轮传递的扭矩。 该系统包括多个速度和位置传感器,具有驱动主轴和次轴的主输出轴和次输出轴的转移壳和微控制器。 传感器包括车速传感器,一对主驱动轴速度传感器以及制动和传动系状态传感器。 传送箱包括由微控制器控制的调制电磁离合器,其被递增地接合以将扭矩从主输出轴传递到次输出轴。 当前驱动轴或后驱动轴超速的速度即超过另一驱动轴的速度与车速相关的预定值,表示车轮滑动时,离合器电流逐渐增加以增加离合器 接合和扭矩传递到次轴。 当车轮滑移减小到预定值以下时,逐渐减小到离合器的电流。 还描述了操作这种系统的方法。

    Variable valve timing with actuator locking for internal combustion engine

    公开(公告)号:US06250265B1

    公开(公告)日:2001-06-26

    申请号:US09450456

    申请日:1999-11-29

    Inventor: Roger T. Simpson

    CPC classification number: F01L1/34409 F01L2001/34426

    Abstract: A variable camshaft timing system comprising a camshaft (36) with a vane (20) secured to the camshaft for rotation with the camshaft but not for oscillation with respect to the camshaft. The vane has a circumferentially extending plurality of lobes (20, 22, 24) projecting radially outwardly therefrom and is surrounded by an annular housing (28) that has a corresponding plurality of recesses (30, 32, 34) each of which receives one of the lobes and has a circumferential extent greater than the circumferential extent of the lobe received therein to permit oscillation of the housing relative to the vane and the camshaft while the housing rotates with the camshaft and the vane. Oscillation of the housing relative to the vane and the camshaft is actuated by pressurized engine oil in each of the recesses on opposed sides of the lobe therein, the oil pressure in such recess being preferably derived in part from a torque pulse in the camshaft as it rotates during its operation. An annular locking plate (50) is positioned coaxially with the camshaft and the annular housing and is moveable relative to the annular housing along a longitudinal central axis of the camshaft between a first position, where the locking plate engages the annular housing to prevent its circumferential movement relative to the vane and a second position where circumferential movement of the annular housing relative to the vane is permitted. The locking plate is biased by a spring (52) toward its first position and is urged away from its first position toward its second position by engine oil pressure, to which it is exposed by a passage (48) leading through the camshaft, when engine oil pressure is sufficiently high to overcome the spring biasing force, which is the only time when it is desired to change the relative positions of the annular housing and the vane. The movement of the locking plate is controlled by an engine electronic control unit (46) either through a closed loop control system (FIG. 10) or an open loop control system (FIG. 11).

    Multi-position variable camshaft timing system actuated by engine oil
    64.
    发明授权
    Multi-position variable camshaft timing system actuated by engine oil 有权
    由发动机机油压力驱动的多位置可变凸轮轴定时系统

    公开(公告)号:US06247434B1

    公开(公告)日:2001-06-19

    申请号:US09473804

    申请日:1999-12-28

    CPC classification number: F01L1/34 F01L1/3442 F01L2001/3444 F01L2001/34483

    Abstract: A hub is secured to a camshaft for rotation synchronous with the camshaft, and a housing circumscribes the hub and is rotatable with the hub and the camshaft and is further oscillatable with respect to the hub and the camshaft within a predetennined angle of rotation. Driving vanes are radially disposed within the housing and cooperate with an external surface on the hub, while driven vanes are radially disposed in the hub and cooperate with an internal surface of the housing. A locking device, reactive to oil pressure, prevents relative motion between the housing and the hub. A controlling device controls the oscillation of the housing relative to the hub.

    Abstract translation: 轮毂被固定到凸轮轴以与凸轮轴同步旋转,并且壳体围绕轮毂并且可随轮毂和凸轮轴旋转,并且在预定旋转角度内可相对于轮毂和凸轮轴进一步振荡。 驱动叶片径向地设置在壳体内并且与轮毂上的外表面配合,而驱动叶片径向地布置在毂中并与壳体的内表面配合。 锁定装置,与油压反应,防止壳体和轮毂之间的相对运动。 控制装置控制壳体相对于轮毂的振荡。

    Torsionally compliant and damped sprocket system with position stops
    65.
    发明授权
    Torsionally compliant and damped sprocket system with position stops 有权
    扭力调节和阻尼链轮系统与位置停止

    公开(公告)号:US06234127B1

    公开(公告)日:2001-05-22

    申请号:US09392657

    申请日:1999-09-09

    Abstract: The present invention relates to a torsionally compliant sprocket system which absorbs crankshaft torsional vibrations and minimizes their transfer to other components in the engine system. In particular, the present system interposes resilient spring members between a crankshaft sprocket and an adjacent balance shaft drive sprocket which are interconnected. A damping mechanism provides damping of the system to reduce resonant oscillations.

    Abstract translation: 本发明涉及一种扭转顺应的链轮系统,其吸收曲轴扭转振动并使其转移到发动机系统中的其它部件。 特别地,本系统将弹性弹簧构件介于曲轴链轮和相互平衡的轴驱动链轮之间。 阻尼机构提供系统的衰减以减少谐振振荡。

    Hydraulic tensioning system with dual arm blade
    66.
    发明授权
    Hydraulic tensioning system with dual arm blade 失效
    双臂叶片液压张紧系统

    公开(公告)号:US5653652A

    公开(公告)日:1997-08-05

    申请号:US574257

    申请日:1995-12-18

    Inventor: Roger T. Simpson

    Abstract: A chain tensioner system having a dual arm blade and a hydraulic tensioner. A hydraulic tensioner applies force against the free ends of the dual arms. Each arm is supported in two places, i.e., at the pivot point and against the tensioner piston. A face material that has a high P/V rating is added to the surface of the arm. The arms are simple flat plastic shoes with a hole at one end for the pivot point. A blade spring can be inserted into one or both of the plastic shoes. The tensioner piston moves in and out, the arms in the dual arm tensioner system slide against one another. As one of the tensioner arms applies the force to the chain the other arm damps the movement of the first arm.

    Abstract translation: 具有双臂叶片和液压张紧器的链条张紧器系统。 液压张紧器对双臂的自由端施加力。 每个臂支撑在两个位置,即在枢转点处并且抵靠张紧器活塞。 将具有高P / V额定值的面材添加到臂的表面。 手臂是简单的扁平塑料鞋,在一端有一个孔用于枢轴点。 刀片弹簧可以插入到一个或两个塑料鞋中。 张紧器活塞移入和移出,双臂张紧器系统中的臂彼此滑动。 当张紧器臂中的一个将力施加到链上时,另一个臂减小第一臂的运动。

    On demand vehicle drive system
    68.
    发明授权
    On demand vehicle drive system 失效
    车载驱动系统

    公开(公告)号:US5605201A

    公开(公告)日:1997-02-25

    申请号:US601939

    申请日:1996-02-15

    Abstract: An on demand vehicle drive system monitors vehicle performance and operating conditions and controls torque delivery to the vehicle wheels. The system includes a plurality of speed and position sensors, a transfer case having primary and secondary output shafts driving primary and secondary drive shafts, differentials and axles and a microcontroller. The sensors include a vehicle speed sensor, a pair of primary and secondary drive shaft speed sensors, and brake and driveline status sensors. The transfer case includes a modulating electromagnetic clutch comprising a primary, cone clutch assembly which functions as a pilot device to actuate a secondary, disc pack clutch assembly. The electromagnetic clutch is controlled by the microcontroller which is incrementally engaged to transfer torque from the primary output shaft to the secondary output shaft. When the speed of either the front or the rear drive shaft overruns, i.e., exceeds, the speed of the other drive shaft by a predetermined value related to the vehicle speed and other variables, indicating that wheel slip is present, clutch current is incrementally increased to increase clutch engagement and torque transfer to the secondary drive shaft. When wheel slip is reduced below the predetermined value the current to the clutch is incrementally reduced. The system also senses and compensates for the speed differences between the primary and secondary drive axles caused by the use of different, mixed tire, sizes, e.g., a compact spare, at one or more tire locations by adjusting the predetermined value. The method of operating such a system is also described.

    Abstract translation: 按需车辆驱动系统监视车辆性能和操作条件并控制向车轮传递的扭矩。 该系统包括多个速度和位置传感器,具有驱动主和次驱动轴,差速器和轴以及微控制器的主输出轴和次输出轴的转运箱。 传感器包括车速传感器,一对主驱动轴速度传感器以及制动和传动系状态传感器。 传送箱包括调制电磁离合器,其包括用作致动辅助盘式离合器组件的先导装置的主锥形离合器组件。 电磁离合器由微控制器控制,微控制器被递增地接合以将扭矩从主输出轴传递到次级输出轴。 当前驱动轴或后驱动轴超速的速度,即超过另一驱动轴的速度与车速相关的预定值和其他变量,指示车轮滑动存在时,离合器电流逐渐增加 以增加离合器接合和扭矩传递到次级驱动轴。 当车轮滑移减小到预定值以下时,逐渐减小到离合器的电流。 该系统还通过调整预定值来感测和补偿在一个或多个轮胎位置处使用不同的,混合的轮胎,尺寸(例如紧凑型备件)引起的主驱动轴和次驱动轴之间的速度差。 还描述了操作这种系统的方法。

    Torsional absorber for camshaft sprockets
    69.
    发明授权
    Torsional absorber for camshaft sprockets 失效
    凸轮轴链轮的扭力吸收器

    公开(公告)号:US5579665A

    公开(公告)日:1996-12-03

    申请号:US437396

    申请日:1995-05-09

    CPC classification number: F01L1/08 F01L1/02 F01L1/022 F01L1/024 Y10T74/2128

    Abstract: A vibration damper assembly to absorb vibrations in a camshaft and sprocket system has a sprocket positioned around a camshaft, an inertia ring positioned around the camshaft and adjacent the sprocket, yet capable of moving independently of the sprocket, and a hub member positioned around the camshaft adjacent the inertia ring. Frictional material is interposed between said hub member and a rim portion of the inertia ring whereby the inertia ring and hub member slide with respect to one another along said frictional material to absorb vibrations from the camshaft through heat dissipation.

    Abstract translation: 用于吸收凸轮轴和链轮系统中的振动的振动阻尼器组件具有围绕凸轮轴定位的链轮,位于凸轮轴周围且邻近链轮定位的惯性环,并且能够独立于链轮移动的轮毂件和位于凸轮轴周围的轮毂件 邻近惯性环。 摩擦材料介于所述轮毂构件和惯性环的轮辋部分之间,由此惯性环和毂构件沿着所述摩擦材料相对于彼此滑动,以通过散热来吸收来自凸轮轴的振动。

    On demand vehicle drive system
    70.
    发明授权
    On demand vehicle drive system 失效
    车载驱动系统

    公开(公告)号:US5492194A

    公开(公告)日:1996-02-20

    申请号:US172432

    申请日:1993-12-23

    Abstract: An on demand vehicle drive system monitors vehicle performance and operating conditions and controls torque delivery to the vehicle wheels. The system includes a plurality of speed and position sensors, a transfer case having primary and secondary output shafts driving primary and secondary drive shafts, differentials and axles and a microcontroller. The sensors include a vehicle speed sensor, a pair of primary and secondary drive shaft speed sensors, and brake and driveline status sensors. The transfer case includes a modulating electromagnetic clutch comprising a primary, cone clutch assembly which functions as a pilot device to actuate a secondary, disc pack clutch assembly. The electromagnetic clutch is controlled by the microcontroller which is incrementally engaged to transfer torque from the primary output shaft to the secondary output shaft. When the speed of either the front or the rear drive shaft overruns, i.e., exceeds, the speed of the other drive shaft by a predetermined value related to the vehicle speed and other variables, indicating that wheel slip is present, clutch current is incrementally increased to increase clutch engagement and torque transfer to the secondary drive shaft. When wheel slip is reduced below the predetermined value the current to the clutch is incrementally reduced. The system also senses and compensates for the speed differences between the primary and secondary drive axles caused by the use of different, mixed tire, sizes, e.g., a compact spare, at one or more tire locations by adjusting the predetermined value. The method of operating such a system is also described.

    Abstract translation: 按需车辆驱动系统监视车辆性能和操作条件并控制向车轮传递的扭矩。 该系统包括多个速度和位置传感器,具有驱动主和次驱动轴,差速器和轴以及微控制器的主输出轴和次输出轴的转运箱。 传感器包括车速传感器,一对主驱动轴速度传感器以及制动和传动系状态传感器。 传送箱包括调制电磁离合器,其包括用作致动辅助盘式离合器组件的先导装置的主锥形离合器组件。 电磁离合器由微控制器控制,微控制器被递增地接合以将扭矩从主输出轴传递到次级输出轴。 当前驱动轴或后驱动轴超速的速度,即超过另一驱动轴的速度与车速相关的预定值和其他变量,指示车轮滑动存在时,离合器电流逐渐增加 以增加离合器接合和扭矩传递到次级驱动轴。 当车轮滑移减小到预定值以下时,逐渐减小到离合器的电流。 该系统还通过调整预定值来感测和补偿在一个或多个轮胎位置处使用不同的,混合的轮胎,尺寸(例如紧凑型备件)引起的主驱动轴和次驱动轴之间的速度差。 还描述了操作这种系统的方法。

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