公开(公告)号：US08413638B2

公开(公告)日：2013-04-09

申请号：US12727785

申请日：2010-03-19

申请人： David Mumford ,  Alan Welch ,  Alain Touchette ,  Mike Hebbes ,  Richard Wing

发明人： David Mumford ,  Alan Welch ,  Alain Touchette ,  Mike Hebbes ,  Richard Wing

IPC分类号： F02M51/00

CPC分类号： F16K31/004 ,  F02D41/20 ,  F02D41/2096 ,  F02D2041/2037 ,  F02M51/0603 ,  F02M61/10 ,  F02M61/168 ,  F02M2200/02 ,  F02M2200/304 ,  F02M2200/703

摘要： A method is provided for operating a directly actuated valve that comprises a strain-type actuator to actuate a valve member to travel between a closed position and an open position, the method comprising transmitting displacements from the strain-type actuator to the valve member, maintaining a compressive stress on the actuator that is greater than a predetermined minimum stress by applying a pre-load compressive stress and limiting to less than predetermined limits at least one of: (a) acceleration and deceleration of the valve member when moving between open positions and the closed position; and (b) velocity of said valve member immediately before contacting the valve seat.

摘要翻译： 提供了一种用于操作直接致动的阀的方法，该阀包括应变型致动器以致动阀构件在关闭位置和打开位置之间行进，所述方法包括将应变型致动器的位移传递到阀构件，保持 所述致动器上的压缩应力大于预定的最小应力，通过施加预负荷压缩应力并且限制在小于预定限度以下至少之一中：（a）当在打开位置之间移动时所述阀构件的加速和减速;以及 关闭位置; 和（b）在接触阀座之前所述阀构件的速度。

公开(公告)号：US06761325B2

公开(公告)日：2004-07-13

申请号：US09989623

申请日：2001-11-20

申请人： S. Michael Baker ,  David Mumford ,  Adrian Post ,  Tim Lennox ,  Alain M. J. Touchette ,  Bradley D. Douville

发明人： S. Michael Baker ,  David Mumford ,  Adrian Post ,  Tim Lennox ,  Alain M. J. Touchette ,  Bradley D. Douville

IPC分类号： F02M5900

CPC分类号： F02M61/182 ,  F02D19/0694 ,  F02D19/10 ,  F02M21/0254 ,  F02M21/0263 ,  F02M43/02 ,  F02M43/04 ,  F02M45/086 ,  F02M47/027 ,  F02M47/043 ,  F02M47/046 ,  F02M47/06 ,  F02M57/025 ,  F02M59/105 ,  F02M61/168 ,  F02M61/20 ,  F02M63/0064 ,  F02M2200/46 ,  Y02T10/32 ,  Y02T10/36

摘要： A dual fuel injection valve separately and independently injects two different fuels into a combustion chamber of an internal combustion engine. A first fuel is delivered to the injection valve at injection pressure and a second fuel is either raised to injection pressure by an intensifier provided within the injection valve, or delivered to the injection valve at injection pressure. Electronically controlled valves control hydraulic pressure in control chambers disposed within the injection valve. The pressure of the hydraulic fluid in these control chambers is employed to independently actuate a hollow outer needle that controls the injection of the first fuel. Disposed within the outer needle is an inner needle that controls the injection of the second fuel. The outer needle closes against a seat associated with the injection valve body and the inner needle closes against a seat associated with the outer needle.

摘要翻译： 双燃料喷射阀分别独立地将两种不同的燃料喷射到内燃机的燃烧室中。 第一燃料以注射压力被输送到注射阀，并且第二燃料通过设置在注射阀内的增压器升高到注射压力，或者以注射压力递送到注射阀。 电子控制阀控制设置在喷射阀内的控制室中的液压。 这些控制室中的液压流体的压力用于独立地致动控制第一燃料喷射的空心外针。 在外针内部设置有控制第二燃料喷射的内针。 外针关闭与注射阀体相关联的座，并且内针关闭与外针相关联的座。

公开(公告)号：US08108131B2

公开(公告)日：2012-01-31

申请号：US12788276

申请日：2010-05-26

申请人： Jian Huang ,  Duran Cheung ,  David Mumford

发明人： Jian Huang ,  Duran Cheung ,  David Mumford

IPC分类号： F02P5/153 ,  F02D41/26

CPC分类号： G01M15/11 ,  F02D35/027 ,  F02D41/1498 ,  F02D2200/1012 ,  F02D2200/1015

摘要： The method comprises operating an engine and collecting a real-time accelerometer signal from an accelerometer sensor. The real-time accelerometer signal is digitized and filtered to isolate data in a frequency range associated with combustion to produce a filtered signal data set. The filtered signal data set is integrated to produce an integrated signal data set, and misfire is detected by comparing the integrated signal data set with a predetermined reference data set associated with the same operating point. The apparatus is a control system for an engine that comprises an accelerometer sensor mounted to the engine; a look-up table in which is stored predetermined reference data sets, in association with predetermined operating conditions; and an electronic controller programmed to carry out the foregoing method.

摘要翻译： 该方法包括操作发动机并从加速度计传感器收集实时加速度计信号。 实时加速度计信号被数字化和滤波，以隔离与燃烧相关的频率范围内的数据，以产生滤波信号数据集。 经滤波的信号数据集合以产生积分信号数据组，并且通过将积分信号数据集与与相同操作点相关联的预定参考数据集进行比较来检测失火。 该装置是用于发动机的控制系统，其包括安装在发动机上的加速度计传感器; 与预定操作条件相关联地存储预定参考数据集的查找表; 以及被编程为执行上述方法的电子控制器。

公开(公告)号：US20100286891A1

公开(公告)日：2010-11-11

申请号：US12788276

申请日：2010-05-26

申请人： Jian Huang ,  Duran Cheung ,  David Mumford

发明人： Jian Huang ,  Duran Cheung ,  David Mumford

IPC分类号： F02D28/00 ,  G01M15/11

CPC分类号： G01M15/11 ,  F02D35/027 ,  F02D41/1498 ,  F02D2200/1012 ,  F02D2200/1015

摘要： The method comprises operating an engine and collecting a real-time accelerometer signal from an accelerometer sensor. The real-time accelerometer signal is digitized and filtered to isolate data in a frequency range associated with combustion to produce a filtered signal data set. The filtered signal data set is integrated to produce an integrated signal data set, and misfire is detected by comparing the integrated signal data set with a predetermined reference data set associated with the same operating point. The apparatus is a control system for an engine that comprises an accelerometer sensor mounted to the engine; a look-up table in which is stored predetermined reference data sets, in association with predetermined operating conditions; and an electronic controller programmed to carry out the foregoing method.

摘要翻译： 该方法包括操作发动机并从加速度计传感器收集实时加速度计信号。 实时加速度计信号被数字化和滤波，以隔离与燃烧相关的频率范围内的数据，以产生滤波信号数据集。 经滤波的信号数据集合以产生积分信号数据组，并且通过将积分信号数据集与与相同操作点相关联的预定参考数据集进行比较来检测失火。 该装置是用于发动机的控制系统，其包括安装在发动机上的加速度计传感器; 与预定操作条件相关联地存储预定参考数据集的查找表; 以及被编程为执行上述方法的电子控制器。

公开(公告)号：US20100219360A1

公开(公告)日：2010-09-02

申请号：US12727785

申请日：2010-03-19

申请人： David Mumford ,  Alan Welch ,  Alain Touchette ,  Mike Hebbes ,  Richard Wing

发明人： David Mumford ,  Alan Welch ,  Alain Touchette ,  Mike Hebbes ,  Richard Wing

IPC分类号： F16K31/12 ,  F16K31/02 ,  F16K31/44

CPC分类号： F16K31/004 ,  F02D41/20 ,  F02D41/2096 ,  F02D2041/2037 ,  F02M51/0603 ,  F02M61/10 ,  F02M61/168 ,  F02M2200/02 ,  F02M2200/304 ,  F02M2200/703

摘要： A method is provided for operating a directly actuated valve that comprises a strain-type actuator to actuate a valve member to travel between a closed position and an open position, the method comprising transmitting displacements from the strain-type actuator to the valve member, maintaining a compressive stress on the actuator that is greater than a predetermined minimum stress by applying a pre-load compressive stress and limiting to less than predetermined limits at least one of: (a) acceleration and deceleration of the valve member when moving between open positions and the closed position; and (b) velocity of said valve member immediately before contacting the valve seat.

摘要翻译： 提供了一种用于操作直接致动的阀的方法，该阀包括应变型致动器以致动阀构件在关闭位置和打开位置之间行进，所述方法包括将应变型致动器的位移传递到阀构件，保持 所述致动器上的压缩应力大于预定的最小应力，通过施加预负荷压缩应力并且限制在小于预定限度以下至少之一中：（a）当在打开位置之间移动时所述阀构件的加速和减速;以及 关闭位置; 和（b）在接触阀座之前所述阀构件的速度。

公开(公告)号：US20050274360A1

公开(公告)日：2005-12-15

申请号：US10867303

申请日：2004-06-14

申请人： David Mumford ,  Richard Ancimer ,  Mike Baker ,  Damien Clapa ,  Richard Wing

发明人： David Mumford ,  Richard Ancimer ,  Mike Baker ,  Damien Clapa ,  Richard Wing

IPC分类号： B05B3/04 ,  F02D41/20 ,  F02M21/02 ,  F02M47/04 ,  F02M51/00 ,  F02M51/06 ,  F02M63/00 ,  F16K31/12

CPC分类号： F02M61/08 ,  F02D19/024 ,  F02D19/027 ,  F02D41/20 ,  F02D2200/063 ,  F02M21/0254 ,  F02M21/0263 ,  F02M51/0603 ,  F02M61/167 ,  F02M2200/24 ,  F02M2200/704 ,  Y02T10/32

摘要： A common rail directly actuated fuel injection valve is disclosed with a hydraulic transmission device that is fluidly isolated from the fuel so that the hydraulic fluid can be different from the fuel. This arrangement is particularly suitable for valves that inject a gaseous fuel, but can also be beneficial for use with liquid fuels. According to the method, the hydraulic fluid is pressurizable by the fuel pressure to reduce differential pressures and leakage, in addition to assisting with operation of the hydraulic transmission device. The method further comprises detecting the position of the valve needle for more accurate control of rate of fuel injection during an injection event.

摘要翻译： 公开了一种共轨直接致动的燃料喷射阀，其具有与燃料流体隔离的液压传动装置，使得液压流体可以不同于燃料。 这种布置特别适用于注入气体燃料的阀，但也可有利于与液体燃料一起使用。 根据该方法，除了辅助液压传动装置的操作之外，液压流体可以通过燃料压力加压以减小压差和泄漏。 该方法还包括检测阀针的位置，以便在喷射事件期间更准确地控制燃料喷射速率。

公开(公告)号：US20110108631A1

公开(公告)日：2011-05-12

申请号：US12971730

申请日：2010-12-17

申请人： David Mumford ,  Sandeep Munshi

发明人： David Mumford ,  Sandeep Munshi

IPC分类号： F02M43/04

CPC分类号： F02M21/0263 ,  F02D19/0642 ,  F02D19/0689 ,  F02D19/0694 ,  F02D19/081 ,  F02M43/04 ,  F02M57/025 ,  F02M63/0049 ,  Y02T10/32 ,  Y02T10/36

摘要： A fuel injection valve co-injects a liquid and a gaseous fuel into the combustion chamber of an internal combustion engine. A solid needle regulates the injection of liquid and gaseous fuels from a cavity in the fuel injection valve into the combustion chamber when the needle is lifted to its open position. In preferred embodiments, liquid fuel is metered and pressurized in an intensifier's cylinder provided within the valve body and the liquid fuel is delivered through a restricted flow passage into the cavity where it mixes with the gaseous fuel. The restricted flow passage can be formed by a small passage formed in the valve body or an annular passage between the needle and the valve body.

摘要翻译： 燃料喷射阀将液体和气体燃料共同喷射到内燃机的燃烧室中。 当针被提升到其打开位置时，固体针调节液体和气体燃料从燃料喷射阀中的空腔喷射到燃烧室中。 在优选实施例中，液体燃料被计量并在设置在阀体内的增压器的气缸中进行加压，并且液体燃料通过限制的流动通道输送到空腔中，在该空腔中与气体燃料混合。 受限制的流动通道可以由形成在阀体中的小通道或针和阀体之间的环形通道形成。

公开(公告)号：US07124959B2

公开(公告)日：2006-10-24

申请号：US10889508

申请日：2004-07-12

申请人： S. Michael Baker ,  David Mumford ,  Adrian Post ,  Tim Lennox ,  Bradley D. Douville ,  Alain M. J. Touchette

发明人： S. Michael Baker ,  David Mumford ,  Adrian Post ,  Tim Lennox ,  Bradley D. Douville ,  Alain M. J. Touchette

IPC分类号： F02D1/06 ,  F02M59/00 ,  F02M39/00 ,  F02M47/02 ,  B05B1/30

CPC分类号： F02M61/182 ,  F02D19/0694 ,  F02D19/10 ,  F02M21/0254 ,  F02M21/0263 ,  F02M43/02 ,  F02M43/04 ,  F02M45/086 ,  F02M47/027 ,  F02M47/043 ,  F02M47/046 ,  F02M47/06 ,  F02M57/025 ,  F02M59/105 ,  F02M61/168 ,  F02M61/20 ,  F02M63/0064 ,  F02M2200/46 ,  Y02T10/32 ,  Y02T10/36

摘要： A dual fuel injection valve separately and independently injects two different fuels and comprises a dual needle assembly with a hollow open-ended outer needle and an inner needle disposed within the hollow interior. A cap cooperates with the outer needle to cover the open end, and the outer needle and the cap together comprise the inner valve body. The outer and inner needles are each movable independently from each other between respective open and closed positions. A spring disposed between the cap and the inner needle contributes to biasing the inner needle in the closed position. The cap can be joined to the outer needle, whereby the cap can provide a limit to the movement of the inner needle. In another embodiment the cap can be detached from the outer body, allowing the spring to space the cap away from the outer needle, assisting with biasing the outer needle closed.

摘要翻译： 双燃料喷射阀分别独立地注射两种不同的燃料，并且包括具有中空开口外针和设置在中空内部内的针的双针组件。 帽与外针配合以覆盖开口端，并且外针和帽一起构成内阀体。 外针和内针各自在相应的打开和关闭位置之间彼此独立地移动。 设置在盖和内针之间的弹簧有助于将内针偏置在关闭位置。 盖可以连接到外针，由此盖可以为内针的运动提供限制。 在另一个实施例中，帽可以从外部主体分离，允许弹簧将盖远离外部针，从而有助于使外针偏压。

公开(公告)号：US07100577B2

公开(公告)日：2006-09-05

申请号：US10867303

申请日：2004-06-14

申请人： David Mumford ,  Richard Ancimer ,  Mike Baker ,  Damien Clapa ,  Richard Wing

发明人： David Mumford ,  Richard Ancimer ,  Mike Baker ,  Damien Clapa ,  Richard Wing

IPC分类号： F02M37/04 ,  F02M63/00

CPC分类号： F02M61/08 ,  F02D19/024 ,  F02D19/027 ,  F02D41/20 ,  F02D2200/063 ,  F02M21/0254 ,  F02M21/0263 ,  F02M51/0603 ,  F02M61/167 ,  F02M2200/24 ,  F02M2200/704 ,  Y02T10/32

摘要： A common rail directly actuated fuel injection valve is disclosed with a hydraulic transmission device that is fluidly isolated from the fuel so that the hydraulic fluid can be different from the fuel. This arrangement is particularly suitable for valves that inject a gaseous fuel, but can also be beneficial for use with liquid fuels. According to the method, the hydraulic fluid is pressurizable by the fuel pressure to reduce differential pressures and leakage, in addition to assisting with operation of the hydraulic transmission device. The method further comprises detecting the position of the valve needle for more accurate control of rate of fuel injection during an injection event.

摘要翻译： 公开了一种共轨直接致动的燃料喷射阀，其具有与燃料流体隔离的液压传动装置，使得液压流体可以不同于燃料。 这种布置特别适用于注入气体燃料的阀，但也可有利于与液体燃料一起使用。 根据该方法，除了辅助液压传动装置的操作之外，液压流体可以通过燃料压力加压以减小压差和泄漏。 该方法还包括检测阀针的位置，以便在喷射事件期间更准确地控制燃料喷射速率。

公开(公告)号：US09022303B2

公开(公告)日：2015-05-05

申请号：US12971730

申请日：2010-12-17

申请人： David Mumford ,  Sandeep Munshi

发明人： David Mumford ,  Sandeep Munshi

IPC分类号： B05B7/06 ,  F02M21/02 ,  F02D19/06 ,  F02D19/08 ,  F02M43/04 ,  F02M57/02 ,  F02M63/00

CPC分类号： F02M21/0263 ,  F02D19/0642 ,  F02D19/0689 ,  F02D19/0694 ,  F02D19/081 ,  F02M43/04 ,  F02M57/025 ,  F02M63/0049 ,  Y02T10/32 ,  Y02T10/36

摘要： A fuel injection valve co-injects a liquid and a gaseous fuel into the combustion chamber of an internal combustion engine. A solid needle regulates the injection of liquid and gaseous fuels from a cavity in the fuel injection valve into the combustion chamber when the needle is lifted to its open position. In preferred embodiments, liquid fuel is metered and pressurized in an intensifier's cylinder provided within the valve body and the liquid fuel is delivered through a restricted flow passage into the cavity where it mixes with the gaseous fuel. The restricted flow passage can be formed by a small passage formed in the valve body or an annular passage between the needle and the valve body.

摘要翻译： 燃料喷射阀将液体和气体燃料共同喷射到内燃机的燃烧室中。 当针被提升到其打开位置时，固体针调节液体和气体燃料从燃料喷射阀中的空腔喷射到燃烧室中。 在优选实施例中，液体燃料被计量并在设置在阀体内的增压器的气缸中进行加压，并且液体燃料通过受限的流动通道输送到空腔中，在该空腔中与气体燃料混合。 受限制的流动通道可以由形成在阀体中的小通道或针和阀体之间的环形通道形成。