公开(公告)号：US07409934B2

公开(公告)日：2008-08-12

申请号：US11546858

申请日：2006-10-12

Applicant: Jongmin Lee ,  Jeffrey D. Rohe

Inventor： Jongmin Lee ,  Jeffrey D. Rohe

IPC: F01L1/34

CPC classification number: F01L13/0015 ,  F01L1/024 ,  F01L1/08 ,  F01L1/185 ,  F01L1/267 ,  F01L13/0021 ,  F01L13/0063 ,  F01L2013/0068 ,  F01L2013/0073 ,  F01L2105/00 ,  Y10T74/2107

Abstract: An electromechanical VVA system for controlling the poppet valves in the cylinder head of an internal combustion engine. The system varies valve lift, duration, and phasing in a dependent manner for one or more banks of engine valves. A rocker subassembly for each valve is pivotably disposed in roller bearings on a rocker pivot shaft between the camshaft and a roller follower. A control shaft supports the rocker pivot shaft for controlling a plurality of rocker subassemblies mounted in roller bearings for a plurality of engine cylinders. The control shaft rotates about its axis to displace the rocker pivot shaft and change the angular relationship of the rocker subassembly to the camshaft, thus changing the valve opening, closing, lift and duration. An actuator attached to the control shaft includes a worm gear drive for positively rotating the control shaft.

Abstract translation: 一种用于控制内燃机气缸盖中的提升阀的机电VVA系统。 该系统以一个或多个发动机气门组为依赖方式改变气门升程，持续时间和相位。 用于每个阀的摇杆子组件可枢转地设置在凸轮轴和滚子从动件之间的摇臂枢轴上的滚子轴承中。 控制轴支撑摇臂枢轴，用于控制多个安装在多个发动机气缸的滚子轴承中的摇臂组件。 控制轴围绕其轴线旋转以移动摇臂枢轴并改变摇臂组件与凸轮轴的角度关系，从而改变阀门的开度，关闭，升程和持续时间。 附接到控制轴的致动器包括用于主动地旋转控制轴的蜗轮传动装置。

公开(公告)号：US20110061618A1

公开(公告)日：2011-03-17

申请号：US12821210

申请日：2010-06-23

Applicant: Jeffrey D. Rohe ,  Jongmin Lee

Inventor： Jeffrey D. Rohe ,  Jongmin Lee

IPC: F01L1/34

CPC classification number: F01L13/0026

Abstract: A system for varying actuation of a combustion valve in an internal combustion engine, including a control shaft pivot housing fixedly disposed on the engine, a control shaft pivotably disposed within the control shaft pivot housing and eccentrically fixed to a control shaft disc, an input rocker subassembly pivotably disposed on the control shaft disc and having a contact feature disposable as a follower against a camshaft lobe, an output cam subassembly pivotably disposed on the control shaft and engageable by the input rocker subassembly and including an output cam profile for engaging a finger follower of the engine, and a bias spring to urge the output cam subassembly toward the input rocker subassembly. In one aspect of the invention, high lift events with full duration are produced whenever the control shaft is aligned such that the input rocker pivot center and the output cam pivot center are coincidental.

Abstract translation: 一种用于改变内燃机中燃烧阀致动的系统，包括固定地设置在发动机上的控制轴枢轴壳体，可枢转地设置在控制轴枢轴壳体内并偏心地固定到控制轴盘的控制轴，输入摇臂 子组件可枢转地设置在控制轴盘上，并且具有一次性作为随动件抵靠凸轮轴凸角的接触特征，输出凸轮子组件，可枢转地设置在控制轴上并且可由输入摇臂子组件接合，并且包括输出凸轮轮廓，用于接合手指跟随器 以及偏压弹簧，以将输出凸轮子组件推向输入摇臂子组件。 在本发明的一个方面中，只要控制轴对齐，使得输入摇臂枢轴中心和输出凸轮枢轴中心是巧合的，则产生具有全持续时间的高升程事件。

公开(公告)号：US07363893B2

公开(公告)日：2008-04-29

申请号：US11294223

申请日：2005-12-05

Applicant: Jeffrey D. Rohe ,  Richard B. Roe ,  Jongmin Lee ,  Jeffrey Gutterman

Inventor： Jeffrey D. Rohe ,  Richard B. Roe ,  Jongmin Lee ,  Jeffrey Gutterman

IPC: F01L1/34

CPC classification number: F01L13/0063 ,  F01L1/024 ,  F01L1/185 ,  F01L1/267 ,  F01L13/0021 ,  F01L2013/0068 ,  F01L2013/0073 ,  F01L2105/00

Abstract: An electromechanical VVA system for controlling the poppet valves in the cylinder head of an internal combustion engine. The system varies valve lift, duration, and phasing in a dependent manner for one or more banks of engine valves. A rocker subassembly for each valve or valve pair is pivotably disposed on a control shaft between the camshaft and the roller finger follower. The control shaft may be displaced about a pivot axis outside the control shaft to change the angular relationship of the rocker subassembly to the camshaft, thus changing the valve opening, closing, and lift. A plurality of control shafts for controlling all valvetrains in an engine bank defines a control shaft assembly. The angular positions of the individual control shafts may be tuned to optimize the valve timing of each cylinder. The system is applicable to the intake and exhaust camshafts of diesel and gasoline engines.

Abstract translation: 一种用于控制内燃机气缸盖中的提升阀的机电VVA系统。 该系统以一个或多个发动机气门组为依赖方式改变气门升程，持续时间和相位。 用于每个阀或阀对的摇杆子组件可枢转地设置在凸轮轴和滚筒指状随动件之间的控制轴上。 控制轴可以围绕控制轴外部的枢转轴线移位，以改变摇臂组件与凸轮轴的角度关系，从而改变阀的开度，关闭和升程。 用于控制发动机组中的所有阀门的多个控制轴限定了控制轴组件。 可以调整各个控制轴的角位置以优化每个气缸的气门正时。 该系统适用于柴油和汽油发动机的进气和排气凸轮轴。

公开(公告)号：US20080078345A1

公开(公告)日：2008-04-03

申请号：US11891882

申请日：2007-08-14

Applicant: Michael B. Knauf ,  Jeffrey D. Rohe ,  Jongmin Lee ,  Edward S. Suh ,  Hermes A. Fernandez ,  John R. Socha

Inventor： Michael B. Knauf ,  Jeffrey D. Rohe ,  Jongmin Lee ,  Edward S. Suh ,  Hermes A. Fernandez ,  John R. Socha

IPC: F01L1/34

CPC classification number: F01L13/0021 ,  F01L13/0047 ,  F01L13/0063 ,  F01L2001/0476 ,  F01L2001/0478

Abstract: A system for continuously varying actuation of a valve in an internal combustion engine including a first cam for opening the valve, a second cam for closing the valve, and an oscillating rocker arm continuously engaging each of the first cam, the second cam, and the valvetrain, with the aid of a lost motion spring. The cams are disposed on first and second camshafts that are geared together. The first camshaft gear is driven by the engine crankshaft and thus is phase-invariant. The second camshaft gear is rotationally mounted on the second camshaft and supports the stator of a camshaft phaser. The phaser rotor is mounted to the second camshaft. Varying the rotor position varies the phase of the second cam and thus varies lift and closing timing of the valve. The system is useful in improving the performance of both spark-ignited and compression-ignited engines.

Abstract translation: 一种用于连续改变内燃机中的阀的致动系统，包括用于打开阀的第一凸轮，用于关闭阀的第二凸轮以及连续接合第一凸轮，第二凸轮和第二凸轮中的每一个的摆动摇臂 借助于空动弹簧的助推器。 凸轮设置在第一和第二凸轮轴上，齿轮组合在一起。 第一个凸轮轴齿轮由发动机曲轴驱动，因此是相位不变的。 第二凸轮轴齿轮旋转地安装在第二凸轮轴上并支撑凸轮轴相位器的定子。 移相器转子安装在第二凸轮轴上。 改变转子位置可改变第二凸轮的相位，从而改变阀的升程和关闭正时。 该系统有助于提高火花点火和压缩点火发动机的性能。

公开(公告)号：US06988473B2

公开(公告)日：2006-01-24

申请号：US10606884

申请日：2003-06-26

Applicant: Jeffrey D. Rohe ,  Fuat Koro ,  David J. Trapasso ,  Thomas H. Fischer ,  Richard B. Roe

Inventor： Jeffrey D. Rohe ,  Fuat Koro ,  David J. Trapasso ,  Thomas H. Fischer ,  Richard B. Roe

IPC: F01L1/34

CPC classification number: F01L1/267 ,  F01L13/0063 ,  F01L2013/0068 ,  F01L2101/00 ,  F01L2103/00 ,  F01L2105/00 ,  F01L2820/01 ,  Y10T74/1828 ,  Y10T74/2101 ,  Y10T74/2107

Abstract: A variable valve actuation mechanism includes a control shaft assembly and a body. The control shaft assembly is pivotable relative to a pivot axis. The body is pivotally disposed on the control shaft assembly, and includes an input cam follower and at least one output cam surface. The input cam follower engages an input cam lobe, and the output cam surface engages a corresponding output cam follower. A spring engages the body and biases the input cam follower into engagement with the input cam lobe.

Abstract translation: 可变气门致动机构包括控制轴组件和主体。 控制轴组件相对于枢转轴线可枢转。 主体枢转地设置在控制轴组件上，并且包括输入凸轮从动件和至少一个输出凸轮表面。 输入凸轮从动件接合输入凸轮凸角，并且输出凸轮表面接合相应的输出凸轮从动件。 弹簧与主体接合并偏压输入凸轮从动件与输入凸轮凸角接合。

公开(公告)号：US08276556B2

公开(公告)日：2012-10-02

申请号：US12431880

申请日：2009-04-29

Applicant: Michael B. Knauf ,  Jeffrey D. Rohe ,  Hermes A. Fernandez

Inventor： Michael B. Knauf ,  Jeffrey D. Rohe ,  Hermes A. Fernandez

IPC: F01L1/34

CPC classification number: F01L1/053 ,  F01L13/0021 ,  Y10T74/2107

Abstract: A mechanism for compensating systematic uni-directional torque bias imposed on a bi-directional drive actuator shaft, comprising a pallet disposed on an arm for rotation with the actuator shaft. A bucket tappet is engaged by the pallet and contains a helical compression spring. As the actuator shaft rotates and compresses the spring, the load on the pallet increases linearly but the length of the lever arm changes non-linearly at a rate different from the force applied to the pallet. This results in a non-linear torque about the actuator shaft. The torque can be the same at the compression spring preload state as it is at the full load state or it can be biased to be unsymmetrical based on the layout and size of the components and the stroke of the actuator shaft.

Abstract translation: 用于补偿施加在双向驱动致动器轴上的系统性单向扭矩偏置的机构，包括设置在臂上的托盘，用于与致动器轴一起旋转。 铲斗挺杆由托盘接合并且包含螺旋压缩弹簧。 当致动器轴旋转并压缩弹簧时，托盘上的载荷线性增加，但是杆臂的长度以与施加到托盘的力不同的速率非线性地改变。 这导致关于致动器轴的非线性扭矩。 在处于满载状态的压缩弹簧预加载状态下，扭矩可以相同，或者可以基于部件的布局和尺寸以及致动器轴的行程将其偏置成不对称。

公开(公告)号：US20080078346A1

公开(公告)日：2008-04-03

申请号：US11904851

申请日：2007-09-28

Applicant: Jongmin Lee ,  Jeffrey D. Rohe ,  Edward S. Suh ,  Michael B. Knauf

Inventor： Jongmin Lee ,  Jeffrey D. Rohe ,  Edward S. Suh ,  Michael B. Knauf

IPC: F01L1/34

CPC classification number: F01L13/0021 ,  F01L13/0047 ,  F01L13/0063 ,  F01L2001/0476 ,  F01L2001/0478

Abstract: A continuously variable valve duration system including a rocker assembly acted upon by two off-spaced camshafts for selectively varying the closing point of a valve in an internal combustion engine. An opening camshaft is rotatably driven by the engine crankshaft and controls at least the opening and point of the valve through a rocker assembly disposed on a fixed pivot shaft. A closing camshaft, rotatably connected to the opening intake camshaft through a cam phaser, is poised to take over control of the valve closing event through the same rocker assembly. By changing the rotational phase of the closing camshaft relative to the opening camshaft via the cam phaser, the valve closing event can be either retarded or advanced so as to override the opening camshaft and thus selectively vary the valve event duration.

Abstract translation: 一种连续可变气门持续时间系统，包括由两个偏离间隔的凸轮轴作用的摇臂组件，用于选择性地改变内燃机中的阀的关闭点。 打开的凸轮轴由发动机曲轴旋转驱动，并且至少通过设置在固定枢轴上的摇杆组件来控制阀的开口和点。 通过凸轮相位器可旋转地连接到开启进气凸轮轴的闭合凸轮轴准备通过相同的摇杆组件接管控制闭合事件。 通过经由凸轮相位器相对于打开凸轮轴改变闭合凸轮轴的旋转相位，可以延迟或提前关闭阀门事件，以便超越开启凸轮轴，从而选择性地改变阀门事件持续时间。

公开(公告)号：US06401677B1

公开(公告)日：2002-06-11

申请号：US09784506

申请日：2001-02-15

Applicant: Jeffrey D. Rohe ,  Ronald J. Pierik

Inventor： Jeffrey D. Rohe ,  Ronald J. Pierik

IPC: F01L1300

CPC classification number: F01L13/0026 ,  F01L13/0021 ,  F01L2013/0073 ,  F01L2820/01

Abstract: A variable valve train device for installation in an internal combustion engine to controllably vary the intake valve lift, open duration, and timing. A rotary camshaft has a cam lobe for rotation in timed relationship to the motion of the pistons of the engine. A close-fitting frame is rotationally disposed on the camshaft and is pivotably connected to a control shaft such that the angular orientation of the frame may be controlled with respect to the camshaft. A rocker arm disposed on the frame is provided with an input roller which follows the lobe of the camshaft to oscillate an output roller in response to rotary motion of the cam. The output roller drives an output cam which cooperates with a cam follower to open an engine intake valve conventionally against a valve spring. A curved return spring disposed between the output cam and the frame returns the output cam as the valve closes. Rotation of the frame about the camshaft alters the timing of the valve opening, the height of the valve lift, and the duration of opening. The invention is capable of controlling engine load and peak engine torque directly at the cylinder head without resort to a conventional throttle.

Abstract translation: 一种用于安装在内燃机中以可控地改变进气门升程，打开持续时间和时间的可变气门机构装置。 旋转凸轮轴具有用于与发动机的活塞的运动定时关系地旋转的凸轮凸角。 紧凑的框架旋转地设置在凸轮轴上并且可枢转地连接到控制轴，使得可以相对于凸轮轴控制框架的角度定向。 设置在框架上的摇臂设置有输入辊，该输入辊跟随凸轮轴的凸角，以响应于凸轮的旋转运动而摆动输出辊。 输出辊驱动与凸轮从动件配合的输出凸轮，以通常打开发动机进气阀以抵抗阀弹簧。 设置在输出凸轮和框架之间的弯曲复位弹簧在阀关闭时返回输出凸轮。 框架围绕凸轮轴的旋转改变了阀开启的时间，阀升高的高度和打开的持续时间。 本发明能够直接在气缸盖上控制发动机负荷和发动机扭矩峰值，而不需要采用传统的油门。

公开(公告)号：US08408172B2

公开(公告)日：2013-04-02

申请号：US12821210

申请日：2010-06-23

Applicant: Jeffrey D. Rohe ,  Jongmin Lee

Inventor： Jeffrey D. Rohe ,  Jongmin Lee

IPC: F01L1/34

CPC classification number: F01L13/0026

Abstract: A system for varying actuation of a combustion valve in an internal combustion engine, including a control shaft pivot housing fixedly disposed on the engine, a control shaft pivotably disposed within the control shaft pivot housing and eccentrically fixed to a control shaft disc, an input rocker subassembly pivotably disposed on the control shaft disc and having a contact feature disposable as a follower against a camshaft lobe, an output cam subassembly pivotably disposed on the control shaft and engageable by the input rocker subassembly and including an output cam profile for engaging a finger follower of the engine, and a bias spring to urge the output cam subassembly toward the input rocker subassembly. In one aspect of the invention, high lift events with full duration are produced whenever the control shaft is aligned such that the input rocker pivot center and the output cam pivot center are coincidental.

Abstract translation: 一种用于改变内燃机中燃烧阀致动的系统，包括固定地设置在发动机上的控制轴枢轴壳体，可枢转地设置在控制轴枢轴壳体内并偏心地固定到控制轴盘的控制轴，输入摇臂 子组件可枢转地设置在控制轴盘上，并且具有一次性作为随动件抵靠凸轮轴凸角的接触特征，输出凸轮子组件，可枢转地设置在控制轴上并且可由输入摇臂子组件接合，并且包括输出凸轮轮廓，用于接合手指跟随器 以及偏压弹簧，以将输出凸轮子组件推向输入摇臂子组件。 在本发明的一个方面中，只要控制轴对齐，使得输入摇臂枢轴中心和输出凸轮枢轴中心是巧合的，则产生具有全持续时间的高升程事件。

公开(公告)号：US20100275863A1

公开(公告)日：2010-11-04

申请号：US12431880

申请日：2009-04-29

Applicant: Michael B. Knauf ,  Jeffrey D. Rohe ,  Hermes A. Fernandez

Inventor： Michael B. Knauf ,  Jeffrey D. Rohe ,  Hermes A. Fernandez

IPC: F01L1/34 ,  F16D23/00 ,  F01L1/02

CPC classification number: F01L1/053 ,  F01L13/0021 ,  Y10T74/2107

Abstract: A mechanism for compensating systematic uni-directional torque bias imposed on a bi-directional drive actuator shaft, comprising a pallet disposed on an arm for rotation with the actuator shaft. A bucket tappet is engaged by the pallet and contains a helical compression spring. As the actuator shaft rotates and compresses the spring, the load on the pallet increases linearly but the length of the lever arm changes non-linearly at a rate different from the force applied to the pallet. This results in a non-linear torque about the actuator shaft. The torque can be the same at the compression spring preload state as it is at the full load state or it can be biased to be unsymmetrical based on the layout and size of the components and the stroke of the actuator shaft.

Abstract translation: 用于补偿施加在双向驱动致动器轴上的系统性单向扭矩偏置的机构，包括设置在臂上的托盘，用于与致动器轴一起旋转。 铲斗挺杆由托盘接合并且包含螺旋压缩弹簧。 当致动器轴旋转并压缩弹簧时，托盘上的载荷线性增加，但是杆臂的长度以与施加到托盘的力不同的速率非线性地改变。 这导致关于致动器轴的非线性扭矩。 在处于满载状态的压缩弹簧预加载状态下，扭矩可以相同，或者可以基于部件的布局和尺寸以及致动器轴的行程将其偏置成不对称。