公开(公告)号：US5967273A

公开(公告)日：1999-10-19

申请号：US953148

申请日：1997-10-17

申请人： Keith Hampton

发明人： Keith Hampton

IPC分类号： F16D37/00 ,  F16D37/02

CPC分类号： F16D37/008 ,  F16D37/02 ,  F16D2037/007

摘要： A magneto-rheological fluid coupling (11) including a stationary electromagnetic coil (31) and cylindrical contact member (43) surrounding an input shaft (19), and in turn, being surrounded by the output coupling assembly (15). Input (63,65) and output (29) coupling members define a viscous shear chamber (71) disposed radially outward from the coil (31). A drive member (21) extends radially from the input shaft (19) and includes an annular portion (61) at least partially surrounding the coil (31) and driving the input coupling member (63,65). The stationary coil (31) and contact member (43) eliminates the need for electrical brushes, and the problems associated therewith, and the overall arrangement of the coupling (11) results in only radial non-working air gaps, such that the efficiency and repeatability of the device is substantially improved.

摘要翻译： 一种磁流变流体耦合器（11），包括固定的电磁线圈（31）和围绕输入轴（19）的圆柱形接触构件（43），并且由输出耦合组件（15）包围。 输入（63,65）和输出（29）联接构件限定了从线圈（31）径向向外设置的粘性剪切室（71）。 驱动构件（21）从输入轴（19）径向延伸并且包括至少部分地围绕线圈（31）并驱动输入联接构件（63,65）的环形部分（61）。 固定线圈（31）和接触构件（43）消除了对电刷的需要，并且与之相关的问题以及联接器（11）的整体布置导致只有径向非工作气隙，使得效率和 显着提高了装置的重复性。

公开(公告)号：US5682848A

公开(公告)日：1997-11-04

申请号：US744723

申请日：1996-10-29

申请人： Keith Hampton ,  David M. Preston

发明人： Keith Hampton ,  David M. Preston

IPC分类号： F01L1/18 ,  F01L1/24 ,  F01L13/00 ,  F02D13/06

CPC分类号： F01L13/0005 ,  F01L1/185 ,  F01L1/2405 ,  F01L2105/00 ,  F01L2820/031

摘要： A valve control system for an internal combustion engine which does not require synchronization with the engine rotation is disclosed. The system includes an actuator having a coil electrically energized by a control unit causing a stator to magnetically attract an armature where the armature is coupled to a plunger by an actuator spring. The plunger pushes against a pivoted actuator arm having an inner and outer housing which are biased into extension by an arm spring. The actuator arm contacts and forces a slidable latch member into an inactive position and a latch spring returns the latch member into an active position. The system includes an outer rocker arm which is engageable with an engine poppet valve, and an inner rocker arm which is engageable with a cam lobe and the latch member which rotatably links and unlinks the inner and outer rocker arms. The system is adapted wherein the engine poppet valve remains closed when the inner and outer rocker arms are unlinked when the latch member is in the inactive position and wherein the engine poppet valve opens and closes in response to the cam lobe when the inner and outer rocker arms are rotatably linked when the latch member is in the active position. In an alternate embodiment, the plunger contacts a first arm of a pivoted bellcrank and a second arm contacts the latch member.

摘要翻译： 公开了一种不需要与发动机旋转同步的用于内燃机的阀控制系统。 该系统包括具有由控制单元供电的线圈的致动器，该线圈使得定子磁吸引电枢，其中电枢通过致动器弹簧联接到柱塞。 柱塞推动枢转的致动器臂，其具有内壳体和外壳体，其通过臂弹簧偏压到延伸部。 致动器臂接触并迫使可滑动的闩锁构件进入非活动位置，并且闩锁弹簧将闩锁构件返回到活动位置。 该系统包括可与发动机提升阀接合的外摇臂和可与凸轮凸角接合的内摇臂和可旋转地连接和解除内摇摆臂和外摇臂的连接的闩锁构件。 该系统适用于当当闩锁构件处于非活动位置时内部和外部摇臂未断开时发动机提升阀保持关闭，并且其中当内部和外部摇杆在内部和外部摇摆时，发动机提升阀响应于凸轮凸角而打开和关闭 当闩锁构件处于活动位置时，臂可旋转地连接。 在替代实施例中，柱塞接触枢转曲拐的第一臂并且第二臂接触闩锁构件。

公开(公告)号：US5623897A

公开(公告)日：1997-04-29

申请号：US622239

申请日：1996-03-22

申请人： Keith Hampton ,  David M. Preston

发明人： Keith Hampton ,  David M. Preston

IPC分类号： F01L1/18 ,  F01L1/24 ,  F01L13/00

CPC分类号： F01L13/0005 ,  F01L1/185 ,  F01L1/2405 ,  F01L2105/00 ,  F01L2820/031

摘要： A valve control system for an internal combustion engine which does not require synchronization with the engine rotation is disclosed. The system includes an actuator having a coil electrically energized by a control unit causing a stator to magnetically attract an armature where the armature is coupled to a plunger by an actuator spring. The plunger pushes against a pivoted actuator arm having an inner and outer housing which are biased into extension by an arm spring. The actuator arm contacts and forces a slidable latch member into an inactive position and a latch spring returns the latch member into an active position. The system includes an outer rocker arm which is engageable with an engine poppet valve, and an inner rocker arm which is engageable with a cam lobe and the latch member which rotatably links and unlinks the inner and outer rocker arms. The system is adapted wherein the engine poppet valve remains closed when the inner and outer rocker arms are unlinked when the latch member is in the inactive position and wherein the engine poppet valve opens and closes in response to the cam lobe when the inner and outer rocker arms are rotatably linked when the latch member is in the active position. In an alternate embodiment, the plunger contacts a first arm of a pivoted bellcrank and a second arm contacts the latch member.

公开(公告)号：US5619958A

公开(公告)日：1997-04-15

申请号：US681319

申请日：1996-07-22

申请人： Keith Hampton ,  David M. Preston

发明人： Keith Hampton ,  David M. Preston

IPC分类号： F01L1/18 ,  F01L1/24 ,  F01L13/00 ,  F02D13/06

CPC分类号： F01L13/0005 ,  F01L1/185 ,  F01L2820/031

摘要： A valve control system for an internal combustion engine. The system includes an outer rocker arm which is engageable with an engine poppet valve, and an inner rocker arm which is engageable with a cam lobe formed in an engine camshaft and a slidable latch member which mechanically links and unlinks the inner and outer rocker arms. The latch member is axially moveable relative to the inner and outer rocker arms between an active position wherein the inner rocker arm engages the outer rocker arm to transmit a valve opening force from the camshaft to the poppet valve, and an inactive position wherein the inner and outer rocker arms are out of engagement and free to rotate relative to one another. The system is adapted for use in a valve train wherein the engine poppet valve remains closed when the inner and outer rocker arms are unlinked when the latch member is in an inactive position and wherein the engine poppet valve opens and closes in response to the cam lobe when the inner and outer rocker arms are linked together when the latch member is in an active position. An actuator operates a bellcrank mechanism which contacts the latch mechanism to move the latch mechanism to an active and an inactive position.

摘要翻译： 一种用于内燃机的阀门控制系统。 该系统包括可与发动机提升阀接合的外摇臂和可与形成在发动机凸轮轴中的凸轮凸角接合的内摇臂，以及机械地连接和取消连接内摇臂和外摇臂的可滑动闩锁构件。 闩锁构件可相对于内和外摇臂在主动位置之间轴向移动，其中内摇臂与外摇臂接合以将来自凸轮轴的阀打开力传递到提升阀，以及非活动位置，其中内和 外摇臂不能接合并且相对于彼此自由旋转。 该系统适用于气门机构，其中当闩锁构件处于非活动位置时内部和外部摇臂未断开时，发动机提升阀保持关闭，并且其中发动机提升阀响应于凸轮凸起而打开和关闭 当内部和外部摇臂在闩锁构件处于活动位置时连接在一起。 致动器操作弯曲机构，其接触闩锁机构以将闩锁机构移动到活动位置和非活动位置。

公开(公告)号：US5234088A

公开(公告)日：1993-08-10

申请号：US742572

申请日：1991-08-08

申请人： Keith Hampton

发明人： Keith Hampton

IPC分类号： F01L1/344 ,  F16D3/10 ,  F16D41/08 ,  F16D41/10

CPC分类号： F16D41/08 ,  F01L1/34409 ,  F16D3/10 ,  F16D41/10

摘要： Devices (10 and 100) for varying the rotational phase relation between a camshaft (12) and an unshown crankshaft in response to positive and negative torque pulsations. The devices include double-acting one-way clutches (24 and 106) disposed in series with support and drive members (20,22 and 102,104) for selectively retarding and advancing the camshaft relative to the crankshaft in response to the torque pulsations. If none of the torque pulsations go negative due to relatively high constant torque, a splitter spring (30) may be disposed in parallel with the one-way clutches.

摘要翻译： 用于响应于正和负扭矩脉动改变凸轮轴（12）和未示出的曲轴之间的旋转相位关系的装置（10和100）。 这些装置包括与支撑和驱动构件（20,22和102,104）串联布置的双作用单向离合器（24和106），用于响应于扭矩脉动选择性地延迟和前进凸轮轴相对于曲轴。 如果由于相对较高的恒定扭矩而没有扭矩脉动变为负值，则分离弹簧（30）可以与单向离合器平行设置。

公开(公告)号：US5040651A

公开(公告)日：1991-08-20

申请号：US554033

申请日：1990-07-17

申请人： Keith Hampton ,  Roger P. Worthen

发明人： Keith Hampton ,  Roger P. Worthen

IPC分类号： F01L1/344 ,  F16D3/10 ,  F16D5/00

CPC分类号： F16D5/00 ,  F01L1/34409 ,  F16D3/10

摘要： A device (10) for varying the angular phase relationship between a camshaft (12) and a crankshaft (not shown) in response to a control signal including a drive member (18) rotating synchronously with an engine crankshaft, a driven member (16) synchronously rotating with the camshaft on a common axis with the drive member. A coupling assembly (42) interlinks the two members and includes an actuator element (76) positionable to selectively vary the phase relationship between the members. An energy storage mechanism (100) including an inertia member (106) and a spring (104) converts kinetic energy from transitory speed differentials between the driven and inertia members to potential energy for selective release by a latch mechanism (144) in driving connection between the energy storage mechanism and the actuator element.

摘要翻译： 一种用于响应于包括与发动机曲轴同步旋转的驱动构件（18）的控制信号改变凸轮轴（12）和曲轴（未示出）之间的角度相位关系的装置（10），从动构件（16） 与凸轮轴同步地与驱动构件在公共轴线上旋转。 联接组件（42）将两个构件相互连接并且包括可定位以选择性地改变构件之间的相位关系的致动器元件（76）。 包括惯性构件（106）和弹簧（104）的能量存储机构（100）将动能从被驱动构件和惯性构件之间的暂时速度差异转换成潜在能量，以通过闩锁机构（144）选择性地释放， 能量存储机构和致动器元件。

公开(公告)号：US10316864B2

公开(公告)日：2019-06-11

申请号：US15097558

申请日：2016-04-13

申请人： David E. Fletcher ,  Brian M. Graichen ,  James H. Miller ,  Keith Hampton

发明人： David E. Fletcher ,  Brian M. Graichen ,  James H. Miller ,  Keith Hampton

IPC分类号： F04F5/20 ,  F04F5/46 ,  F04F5/52

摘要： Devices for producing vacuum using the Venturi effect have a housing defining a suction chamber, a motive passageway converging toward the suction chamber, a discharge passageway diverging away from the suction chamber, and a suction passageway in fluid communication with the suction chamber. A solenoid valve is positioned in the suction passageway and has an elongate sealing member received inside a coil, a first seal seat at a first end of the coil, and a second seal seat at the second end of the coil. The elongate sealing member is translatable within the coil between the first seal seat and the second seal seat, which define an open position and a closed position. Within the suction chamber, a motive exit of the motive passageway is generally aligned with and spaced apart from a discharge entrance of the discharge passageway to define a Venturi gap.

公开(公告)号：US10273978B2

公开(公告)日：2019-04-30

申请号：US14830864

申请日：2015-08-20

申请人： David E. Fletcher ,  Brian M. Graichen ,  James H. Miller ,  Rex Bravo ,  Matthew C. Gilmer ,  Keith Hampton ,  Andrew D. Niedert ,  Denis Vashuk

发明人： David E. Fletcher ,  Brian M. Graichen ,  James H. Miller ,  Rex Bravo ,  Matthew C. Gilmer ,  Keith Hampton ,  Andrew D. Niedert ,  Denis Vashuk

IPC分类号： F04F5/46 ,  F02M35/10 ,  F04F5/00 ,  F04F5/20

摘要： An evacuator for supplying vacuum to a device in a boosted engine air system is disclosed. The evacuator defines a body comprising a converging motive section, a diverging discharge section, at least one suction port, and a Venturi gap located between an outlet end of the converging motive section and an inlet end of the diverging discharge section. A lineal distance is measured between the outlet end and the inlet end. The lineal distance is decreased in length if higher suction vacuum at a specific set of operating conditions is required and the lineal distances is increased in length if higher suction flow rate at the specific set of operating conditions is required.

公开(公告)号：US10100720B2

公开(公告)日：2018-10-16

申请号：US14989177

申请日：2016-01-06

申请人： David E. Fletcher ,  Brian M. Graichen ,  James H. Miller ,  Keith Hampton

发明人： David E. Fletcher ,  Brian M. Graichen ,  James H. Miller ,  Keith Hampton

IPC分类号： F02B37/00 ,  F02M25/06 ,  F01M13/02

摘要： A turbocharged engine air system is disclosed. The system includes a vacuum consuming device, a turbocharger having a compressor fluidly connected to an intake manifold of an engine, a first check valve located upstream of the compressor, a second check valve located downstream of the compressor and upstream of the intake manifold, and an evacuator. The evacuator includes a converging motive section, a diverging discharge section, at least one suction port, and a Venturi gap located between an outlet end of the converging motive section and an inlet end of the diverging discharge section. The diverging discharge section of the evacuator is fluidly connected to both the first check valve and the second check valve. The suction port is fluidly connected to the vacuum consuming device.

公开(公告)号：US10024339B2

公开(公告)日：2018-07-17

申请号：US14725642

申请日：2015-05-29

申请人： David E. Fletcher ,  Brian M. Graichen ,  James H. Miller ,  Rex Bravo ,  Matthew C. Gilmer ,  Keith Hampton ,  Andrew D. Niedert

发明人： David E. Fletcher ,  Brian M. Graichen ,  James H. Miller ,  Rex Bravo ,  Matthew C. Gilmer ,  Keith Hampton ,  Andrew D. Niedert

IPC分类号： F04F5/54 ,  F04F5/16 ,  F04F5/20 ,  F02B37/16

CPC分类号： F04F5/54 ,  F02B37/162 ,  F04F5/16 ,  F04F5/20

摘要： Ejector assemblies and engine systems have a pressure regulator in fluid communication with an ejector. The pressure regulator receives boost pressure and selectively allows the boost pressure to pass through a valve opening therein under selected engine conditions and into the ejector as regulated boost pressure. Both the pressure regulator and the ejector each have a conduit defining a passageway that includes a Venturi gap separating the passageway into a converging section and a first diverging section that both narrow toward the Venturi gap. The pressure regulator has a piston operatively connected to a valve mechanism positioned for movement therewith to control the passage of the boost pressure through the valve opening, and the valve mechanism defines a passage therethrough that includes a gradually narrowing portion that is narrower than the valve opening.