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    Planetary traction drive mechanism and throttle valve assembly
    1.
    发明授权
    Planetary traction drive mechanism and throttle valve assembly 失效
    行星牵引驱动机构和节气门总成

    公开(公告)号：US06758780B2

    公开(公告)日：2004-07-06

    申请号：US10062028

    申请日：2002-01-31

    Applicant: Donald G. Witzel ,  Joseph E. Muhleisen

    Inventor： Donald G. Witzel ,  Joseph E. Muhleisen

    IPC: F16H128

    CPC classification number: F16K31/535 ,  F16H13/06 ,  F16K1/221 ,  F16K31/043 ,  Y10T74/19879

    Abstract: An improved planetary traction drive mechanism for use in actuating a throttle valve assembly is provided. An electric drive motor supports a cup-shaped member defining the outer ring of the mechanism. The drive shaft of the motor extends into the cup-shaped member to define a sun roller and forming an annular space between the sun roller and the outer ring. An output plate is rotatably supported on the drive shaft, and one or more deformable planetary friction rollers are disposed in radial compression between the outer ring and the sun roller are mounted on the plate. An output shaft extends from the plate and may or may not be coaxially aligned with the sun roller. The output shaft may be connected via a link to a lever arm on the throttle shaft of the throttle valve, which may be used on an internal combustion engine.

    Abstract translation: 提供了用于致动节气门组件的改进的行星牵引驱动机构。 电驱动马达支撑限定机构的外圈的杯形部件。 电动机的驱动轴延伸到杯状构件中以限定太阳辊并在太阳辊和外环之间形成环形空间。 输出板被可旋转地支撑在驱动轴上，并且一个或多个可变形的行星摩擦辊以径向压缩的方式设置在外圈和太阳辊之间。 输出轴从板延伸并且可以或可以不与太阳辊同轴对准。 输出轴可以通过连杆连接到可在内燃机上使用的节气门节流轴上的杠杆臂。

    Throttle control for a small engine
    3.
    发明授权
    Throttle control for a small engine 失效
    节气门控制为小型发动机

    公开(公告)号：US06962138B2

    公开(公告)日：2005-11-08

    申请号：US10238836

    申请日：2002-09-06

    Applicant: Robert D. Garrick ,  Donald G. Witzel

    Inventor： Robert D. Garrick ,  Donald G. Witzel

    IPC: F02D20060101 ,  F02D9/08 ,  F02D9/12 ,  F02M35/10

    CPC classification number: F02D9/12 ,  F02D9/08 ,  F02M35/10216

    Abstract: A speed control apparatus for an internal combustion engine including a poppet valve seat and a poppet valve pintle assembly disposed coaxially for variably regulating the flow of air into the engine across the valve seat. The pintle is axially positioned by a stepper motor actuator responsive to an engine speed sensor and electronic controller. The controller varies the axial position of the pintle in accordance with a programmed algorithm to provide any desired engine speed, and especially a fixed engine speed, under a range of engine loads. The invention eliminates the need for a governor, rotary mechanical throttle, and cable or mechanical linkages, and is especially useful for small engine applications such as in powering a portable electric generator, yard equipment, or outboard motor.

    Abstract translation: 一种用于内燃机的速度控制装置，其包括提升阀阀座和同轴设置的提升阀枢栓组件，用于可变地调节穿过阀座的发动机的空气流。 枢轴由响应于发动机转速传感器和电子控制器的步进电机致动器轴向定位。 控制器根据编程的算法改变枢轴的轴向位置，以在发动机负载范围内提供任何期望的发动机转速，特别是固定的发动机转速。 本发明消除了对调速器，旋转机械节流阀，电缆或机械联动装置的需要，并且特别适用于小型发动机应用，例如为便携式发电机，场地设备或舷外马达供电。

    Throttle control for a small engine
    5.
    发明授权
    Throttle control for a small engine 失效

    公开(公告)号：US06928981B2

    公开(公告)日：2005-08-16

    申请号：US11004137

    申请日：2004-12-03

    Applicant: Robert D. Garrick ,  Donald G. Witzel ,  Charles A. Iannone

    Inventor： Robert D. Garrick ,  Donald G. Witzel ,  Charles A. Iannone

    IPC: F02D20060101 ,  F02D9/08 ,  F02D9/12 ,  F02M35/10

    CPC classification number: F02D9/12 ,  F02D9/08 ,  F02M35/10216

    Abstract: A speed control apparatus for an internal combustion engine including a poppet valve seat and a poppet valve pintle assembly disposed coaxially for variably regulating the flow of air into the engine across the valve seat. The pintle is axially positioned by a stepper motor actuator responsive to an engine speed sensor and electronic controller. The controller varies the axial position of the pintle in accordance with a programmed algorithm to provide any desired engine speed, and especially a fixed engine speed, under a range of engine loads. The invention eliminates the need for a governor, rotary mechanical throttle, and cable or mechanical linkages, and is especially useful for small engine applications such as in powering a portable electric generator, yard equipment, or outboard motor.

    Throttle valve having a large diameter shaft with integral valve plate
    6.
    发明授权
    Throttle valve having a large diameter shaft with integral valve plate 失效
    节流阀具有一个具有整体阀板的大直径轴

    公开(公告)号：US06622696B2

    公开(公告)日：2003-09-23

    申请号：US10066840

    申请日：2002-02-04

    Applicant: Donald G. Witzel ,  David M. Evans

    Inventor： Donald G. Witzel ,  David M. Evans

    IPC: F02D916

    CPC classification number: F02D9/16

    Abstract: A rotary throttle valve having a first cylindrical bore for flow of air between an inlet and an outlet and a second cylindrical bore orthogonal to the first bore and being substantially the same diameter as the first bore. A flow modulator rotatably disposed in the second bore has first and second cylindrical portions disposed respectively on opposite sides of the first bore and separated by a central plate such that when the modulator is rotated to place the plate transverse to the first bore, the edges of the plate are fully engaged with the wall of the second bore and the valve is closed. As the modulator is rotated from the closed position to open the valve, the edges of the plate become progressively less engaged with the wall of the second bore, the edge of the open area following the juncture lines of the first and second bores.

    Abstract translation: 一种旋转节流阀，具有用于在入口和出口之间流动的第一圆柱形孔和与第一孔垂直的第二圆柱孔，并且与第一孔基本相同的直径。 可旋转地设置在第二孔中的流动调节器具有分别设置在第一孔的相对侧上的第一和第二圆柱形部分，并由中心板分隔开，使得当调制器旋转以使板横向于第一孔时，边缘 板与第二孔的壁完全接合，并且阀被关闭。 当调制器从关闭位置旋转以打开阀时，板的边缘逐渐地与第二孔的壁接合，开口区域的边缘跟随第一和第二孔的接合线。

    Rotor structure for a position sensor
    7.
    发明授权
    Rotor structure for a position sensor 失效
    位置传感器的转子结构

    公开(公告)号：US5539373A

    公开(公告)日：1996-07-23

    申请号：US148485

    申请日：1993-11-08

    Applicant: David S. Pfaffenberger ,  Cameron B. Erekson ,  Donald G. Witzel

    Inventor： David S. Pfaffenberger ,  Cameron B. Erekson ,  Donald G. Witzel

    IPC: H01C10/32 ,  H01C10/00

    CPC classification number: H01C10/32

    Abstract: A rotor for use in a rotary position sensor includes an opening designed to receive a shaft having a flat. The rotor has a wedge within the opening designed to engage the shaft firmly but minimize insertion forces. Several troughs running parallel to the shaft and adjacent to the wedge aid in retention by adding a controlled amount of resilience to the rotor. On a shaft receiving end of the rotor there is an additional taper to help with coaxial alignment of the rotor opening and the shaft. On the shaft exiting end there is a half-moon like configuration designed to provide a force opposing surface during shaft insertion while not adversely impacting either the full insertion of the shaft or potential drag between the rotor and the sensor housing. The rotor is designed to offer unique advantage in insertion force to install the rotor on the shaft, while retention force and potential drag against the position sensor housing are minimized.

    Abstract translation: 用于旋转位置传感器的转子包括设计成容纳具有平坦的轴的开口。 转子在开口内具有楔形件，其被设计成牢固地接合轴，但最小化插入力。 通过向转子添加受控量的回弹力，平行于轴并且靠近楔子延伸的几个槽有助于保持。 在转子的轴接收端上有一个额外的锥形，以帮助转子开口和轴的同轴对准。 在轴离开端，存在半月形构造，其设计成在轴插入期间提供相对表面的力，而不会不利地影响轴的完全插入或转子和传感器壳体之间的潜在阻力。 转子被设计成在插入力方面提供独特的优点，以将转子安装在轴上，同时保持力和对位置传感器壳体的潜在阻力最小化。

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