公开(公告)号：US08276556B2

公开(公告)日：2012-10-02

申请号：US12431880

申请日：2009-04-29

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

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

IPC分类号： F01L1/34

CPC分类号： F01L1/053 ,  F01L13/0021 ,  Y10T74/2107

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： F01L1/34

CPC分类号： F01L13/0021 ,  F01L13/0047 ,  F01L13/0063 ,  F01L2001/0476 ,  F01L2001/0478

摘要： 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.

摘要翻译： 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：US09765658B2

公开(公告)日：2017-09-19

申请号：US13038418

申请日：2011-03-02

申请人： Michael B. Knauf ,  Mark C. Sellnau

发明人： Michael B. Knauf ,  Mark C. Sellnau

IPC分类号： F01L13/00 ,  F02D13/02 ,  F01L1/18 ,  F01L1/26 ,  F02M26/01

CPC分类号： F01L13/0021 ,  F01L1/185 ,  F01L1/267 ,  F01L13/0036 ,  F01L2800/10 ,  F02D13/0211 ,  F02D13/0219 ,  F02D13/0242 ,  F02D13/0257 ,  F02D13/0273 ,  F02M26/01 ,  Y02T10/18

摘要： A valve train system for an internal combustion engine includes an exhaust valve moveable between an exhaust closed position and an exhaust open position. A camshaft includes a main exhaust lobe for moving the exhaust valve between the exhaust closed position and the exhaust open position for expelling exhaust constituents from the combustion chamber and an exhaust rebreath lobe for moving the exhaust valve between the exhaust closed position and the exhaust open position for allowing exhaust constituents into the combustion chamber. A two-step device is provided for transmitting motion from the camshaft to the exhaust valve and is switchable between a motion transmitting position and a motion preventing position such that the motion transmitting position allows motion to be transmitted from the exhaust rebreath lobe to the exhaust valve and the motion preventing position prevents motion from being transmitted from the exhaust rebreath lobe to the exhaust valve.

公开(公告)号：US20100275863A1

公开(公告)日：2010-11-04

申请号：US12431880

申请日：2009-04-29

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

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

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

CPC分类号： F01L1/053 ,  F01L13/0021 ,  Y10T74/2107

摘要： 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.

摘要翻译： 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：US07685980B2

公开(公告)日：2010-03-30

申请号：US11904851

申请日：2007-09-28

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

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

IPC分类号： F01L1/34

CPC分类号： F01L13/0021 ,  F01L13/0047 ,  F01L13/0063 ,  F01L2001/0476 ,  F01L2001/0478

摘要： 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.

摘要翻译： 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：US20080141960A1

公开(公告)日：2008-06-19

申请号：US11986502

申请日：2007-11-21

申请人： Jeffrey D. Rohe ,  Michael B. Knauf

发明人： Jeffrey D. Rohe ,  Michael B. Knauf

IPC分类号： F01L1/12 ,  F01L1/20 ,  F01L9/04

CPC分类号： F01L1/185 ,  F01L1/024 ,  F01L1/267 ,  F01L13/0021 ,  F01L13/0063 ,  F01L2001/0476 ,  F01L2013/0068 ,  F01L2013/0073 ,  F01L2105/00

摘要： A variable valve actuation system having a crank-based eccentric transmission driven by an electric motor to control valve lift, duration, and phasing in the cylinder head of an internal combustion engine. A rocker sub-assembly for each valve is pivotably disposed on a pivot shaft between the camshaft and the roller finger follower roller. A primary control crankshaft includes the pivot shaft and is itself rotated about its axis by a connecting rod driven by a motorized secondary crank mechanism to displace the rocker sub-assembly pivot shaft along an arcuate path to change the angular relationship of the rocker sub-assembly to the camshaft, thus changing the valve opening and closing timing and valve lift.

摘要翻译： 一种可变气门致动系统，其具有由电动机驱动的曲柄式偏心传动装置，以控制内燃机的气缸盖中的气门升程，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辊指从动辊之间的枢转轴上。 主控制曲柄轴包括枢转轴，并且本身通过由电动次级曲柄机构驱动的连杆围绕其轴线旋转，以沿着弓形路径移动摇臂子组件枢轴，以改变摇杆子组件的角度关系 到凸轮轴，从而改变阀的开启和关闭正时和气门升程。

公开(公告)号：US20120222639A1

公开(公告)日：2012-09-06

申请号：US13038418

申请日：2011-03-02

申请人： MICHAEL B. KNAUF ,  MARK C. SELLNAU

发明人： MICHAEL B. KNAUF ,  MARK C. SELLNAU

IPC分类号： F01L1/18

CPC分类号： F01L13/0021 ,  F01L1/185 ,  F01L1/267 ,  F01L13/0036 ,  F01L2800/10 ,  F02D13/0211 ,  F02D13/0219 ,  F02D13/0242 ,  F02D13/0257 ,  F02D13/0273 ,  F02M26/01 ,  Y02T10/18

摘要： A valve train system for an internal combustion engine includes an exhaust valve moveable between an exhaust closed position and an exhaust open position. A camshaft includes a main exhaust lobe for moving the exhaust valve between the exhaust closed position and the exhaust open position for expelling exhaust constituents from the combustion chamber and an exhaust rebreath lobe for moving the exhaust valve between the exhaust closed position and the exhaust open position for allowing exhaust constituents into the combustion chamber. A two-step device is provided for transmitting motion from the camshaft to the exhaust valve and is switchable between a motion transmitting position and a motion preventing position such that the motion transmitting position allows motion to be transmitted from the exhaust rebreath lobe to the exhaust valve and the motion preventing position prevents motion from being transmitted from the exhaust rebreath lobe to the exhaust valve.

摘要翻译： 用于内燃机的气门机构包括可在排气关闭位置和排气打开位置之间移动的排气阀。 凸轮轴包括用于在排气关闭位置和排气打开位置之间移动排气阀的主排气门，用于排出来自燃烧室的排气成分，以及用于在排气关闭位置和排气打开位置之间移动排气阀的排气重新呼吸波瓣 用于允许废气成分进入燃烧室。 提供两级装置，用于将运动从凸轮轴传递到排气门，并且可在运动传递位置和运动防止位置之间切换，使得运动传递位置允许运动从排气重新呼吸瓣传递到排气阀 并且运动防止位置防止运动从排气重新呼吸瓣传递到排气阀。

公开(公告)号：US20080078345A1

公开(公告)日：2008-04-03

申请号：US11891882

申请日：2007-08-14

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

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

IPC分类号： F01L1/34

CPC分类号： F01L13/0021 ,  F01L13/0047 ,  F01L13/0063 ,  F01L2001/0476 ,  F01L2001/0478

摘要： 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.

摘要翻译： 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。