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1. 发明授权

US08944033B2 Limp home capable dual fuel engine and machine using same 有权
标题翻译： Limp家用双燃料发动机和机器使用相同
公开(公告)号：US08944033B2
公开(公告)日：2015-02-03
申请号：US13606422
申请日：2012-09-07
申请人： Dana R. Coldren , Joshua W. Steffen , Gregg W. Uhland , Brian K. Garman , Alan R. Stockner
发明人： Dana R. Coldren , Joshua W. Steffen , Gregg W. Uhland , Brian K. Garman , Alan R. Stockner
IPC分类号： F02B7/02 , F02M21/02
CPC分类号： F02B7/02 , F02D19/061 , F02D19/0623 , F02D19/0647 , F02D19/0689 , F02D19/0694 , F02D19/081 , F02D41/0025 , F02D41/0027 , F02D41/021 , F02D2041/227 , F02M21/02 , Y02T10/36
摘要： A dual fuel engine powers a machine by burning natural gas and liquid diesel fuel. When operating in a low load mode, some of the engine cylinders are fueled with a high ratio of diesel/gas, and the remaining cylinders are unfueled. When operating in a high load mode, all of the engine cylinders are fueled with a low ratio of diesel/gas. When operating in a limp home mode, the fuel injectors are configured to inject only diesel fuel into all of the plurality of engine cylinders.
摘要翻译：双燃料发动机通过燃烧天然气和液体柴油来为机器供电。当在低负载模式下运行时，一些发动机气缸以高比例的柴油/气体加燃料，而其余的汽缸是未加油的。当在高负载模式下运行时，所有的发动机气缸都以较低的柴油/气体比燃料。当在跛行回家模式下操作时，燃料喷射器被配置为仅将柴油燃料喷射到所有多个发动机气缸中。

2. 发明申请

US20140069386A1 LIMP HOME CAPABLE DUAL FUEL ENGINE AND MACHINE USING SAME 有权
标题翻译： LIMP家用双燃料发动机和使用它的机器
公开(公告)号：US20140069386A1
公开(公告)日：2014-03-13
申请号：US13606422
申请日：2012-09-07
申请人： Dana R. Coldren , Joshua W. Steffen , Gregg W. Uhland , Brian K. Garman , Alan R. Stockner
发明人： Dana R. Coldren , Joshua W. Steffen , Gregg W. Uhland , Brian K. Garman , Alan R. Stockner
IPC分类号： F02D19/08
CPC分类号： F02B7/02 , F02D19/061 , F02D19/0623 , F02D19/0647 , F02D19/0689 , F02D19/0694 , F02D19/081 , F02D41/0025 , F02D41/0027 , F02D41/021 , F02D2041/227 , F02M21/02 , Y02T10/36
摘要： A dual fuel engine powers a machine by burning natural gas and liquid diesel fuel. When operating in a low load mode, some of the engine cylinders are fueled with a high ratio of diesel/gas, and the remaining cylinders are unfueled. When operating in a high load mode, all of the engine cylinders are fueled with a low ratio of diesel/gas. When operating in a limp home mode, the fuel injectors are configured to inject only diesel fuel into all of the plurality of engine cylinders.
摘要翻译：双燃料发动机通过燃烧天然气和液体柴油来为机器供电。当在低负载模式下运行时，一些发动机气缸以高比例的柴油/气体加燃料，而其余的汽缸是未加油的。当在高负载模式下运行时，所有的发动机气缸都以较低的柴油/气体比燃料。当在跛行回家模式下操作时，燃料喷射器被配置为仅将柴油燃料喷射到所有多个发动机气缸中。

3. 发明授权

US08991363B2 Dual fuel system diagnostics for dual fuel engine and machine using same 有权
标题翻译：双燃料系统诊断双燃料发动机和使用相同的机器
公开(公告)号：US08991363B2
公开(公告)日：2015-03-31
申请号：US13590518
申请日：2012-08-21
申请人： Joshua W. Steffen , Dana R. Coldren , Alan R. Stockner
发明人： Joshua W. Steffen , Dana R. Coldren , Alan R. Stockner
IPC分类号： F02M43/02 , F02D19/02 , F02D41/00 , F02M43/00
CPC分类号： F02D19/025 , F02B7/06 , F02D19/10 , F02D41/0025 , F02D41/0027 , F02D2041/224 , F02M21/0215 , F02M21/0221 , F02M21/0245 , F02M21/0287 , Y02T10/32 , Y02T10/36
摘要： A machine includes a machine body and a dual fuel compression ignition engine attached to the machine body. A dual fuel system is operably coupled to supply the engine with liquid diesel fuel and natural gas fuel directly into respective cylinders of the engine. The fuel system includes an insulated tank for storing the natural gas fuel, a pressure sensor positioned to measure fluid pressure within the tank, and a pump for drawing the natural gas fuel from the tank. An electronic controller is in communication with the pressure sensor and has a cryogenic system diagnostics algorithm executable thereon that is configured to receive a pressure signal from the pressure sensor, detect a cryogenic system fault based on the signal, and generate a notification signal based on the fault.
摘要翻译：机器包括机身和连接到机体的双燃料压缩点火发动机。双燃料系统可操作地联接以将液体柴油燃料和天然气燃料直接供给发动机的相应气缸。燃料系统包括用于存储天然气燃料的绝热罐，用于测量罐内的流体压力的压力传感器，以及用于从罐中抽取天然气燃料的泵。电子控制器与压力传感器通信并且具有可执行的低温系统诊断算法，其被配置为从压力传感器接收压力信号，基于该信号检测低温系统故障，并基于该信号生成通知信号故障。

4. 发明申请

US20140053800A1 Dual Fuel System Diagnostics For Dual Fuel Engine And Machine Using Same 有权
标题翻译：双燃油系统诊断双燃料发动机和机器使用相同
公开(公告)号：US20140053800A1
公开(公告)日：2014-02-27
申请号：US13590518
申请日：2012-08-21
申请人： Joshua W. Steffen , Dana R. Coldren , Alan R. Stockner
发明人： Joshua W. Steffen , Dana R. Coldren , Alan R. Stockner
IPC分类号： F02D19/10 , F02M21/02 , G06F19/00 , F02B7/02
CPC分类号： F02D19/025 , F02B7/06 , F02D19/10 , F02D41/0025 , F02D41/0027 , F02D2041/224 , F02M21/0215 , F02M21/0221 , F02M21/0245 , F02M21/0287 , Y02T10/32 , Y02T10/36
摘要： A machine includes a machine body and a dual fuel compression ignition engine attached to the machine body. A dual fuel system is operably coupled to supply the engine with liquid diesel fuel and natural gas fuel directly into respective cylinders of the engine. The fuel system includes an insulated tank for storing the natural gas fuel, a pressure sensor positioned to measure fluid pressure within the tank, and a pump for drawing the natural gas fuel from the tank. An electronic controller is in communication with the pressure sensor and has a cryogenic system diagnostics algorithm executable thereon that is configured to receive a pressure signal from the pressure sensor, detect a cryogenic system fault based on the signal, and generate a notification signal based on the fault.
摘要翻译：机器包括机身和连接到机体的双燃料压缩点火发动机。双燃料系统可操作地联接以将液体柴油燃料和天然气燃料直接供给发动机的相应气缸。燃料系统包括用于存储天然气燃料的绝热罐，用于测量罐内的流体压力的压力传感器，以及用于从罐中抽取天然气燃料的泵。电子控制器与压力传感器通信并且具有可执行的低温系统诊断算法，其被配置为从压力传感器接收压力信号，基于该信号检测低温系统故障，并基于该信号生成通知信号故障。

5. 发明授权

US07059301B2 End of injection rate shaping 有权
标题翻译：注射速率成型结束
公开(公告)号：US07059301B2
公开(公告)日：2006-06-13
申请号：US10370000
申请日：2003-02-20
申请人： Alan R. Stockner , Richard H. Holtman , Dana R. Coldren , Mingchun Dong
发明人： Alan R. Stockner , Richard H. Holtman , Dana R. Coldren , Mingchun Dong
IPC分类号： F02M1/00 , B60T7/12
CPC分类号： F02M63/028 , F02M45/00 , F02M45/12 , F02M47/027 , F02M57/025 , F02M59/466 , F02M63/0015 , F02M63/004 , F02M63/0045
摘要： Fuel injectors equipped with direct control needle valves can add new capabilities to a fuel injection system, but can sometimes have difficulty in achieving low hydrocarbon emissions at levels comparable to ancestor fuel injectors that utilize a simple spring biased needle. The present invention seeks lower hydrocarbon emissions by reducing fuel pressure before the direct control needle valve member has reached its closed position toward the end of an injection event. Reducing fuel pressure can be accomplished in a number of ways depending upon the particular fuel injection system, including spilling fuel pressure in a cam system or possibly relieving pressure on an intensifier piston. By employing this strategy, fuel spray from the fuel injector can effectively end before the direct control needle valve member reaches its closed position, thus avoiding hydrocarbon production that could be caused by a small amount of fuel pushed into the combustion space as the needle moves over the last portion of its movement toward its closed position.
摘要翻译：装备有直接控制针阀的燃油喷射器可以为燃料喷射系统增加新的功能，但是有时难以实现与使用简单弹簧偏压针的祖先燃料喷射器相当的低碳氢化合物排放。本发明通过在直接控制针阀构件已经到达其关闭位置之前通过降低燃料压力来寻求更低的碳氢化合物排放，从而朝向喷射事件结束。取决于特定的燃料喷射系统，包括在凸轮系统中溢出燃料压力或可能减轻增压器活塞上的压力，可以以多种方式实现降低燃料压力。通过采用这种策略，在直接控制针阀构件到达其关闭位置之前，来自燃料喷射器的燃料喷射可以有效地结束，从而避免了由于当针移动时被少量的燃料推入燃烧空间而引起的碳氢化合物产生其运动的最后部分朝向其关闭位置。

6. 发明申请

US20120199101A1 PRESSURE RECOVERY SYSTEM FOR LOW LEAKAGE CAM ASSISTED COMMON RAIL FUEL SYSTEM, FUEL INJECTOR AND OPERATING METHOD THEREFOR 审中-公开
标题翻译：用于低泄漏辅助公共铁路燃料系统的压力恢复系统，燃油喷射器及其操作方法
公开(公告)号：US20120199101A1
公开(公告)日：2012-08-09
申请号：US13022042
申请日：2011-02-07
申请人： Dana R. Coldren , Alan R. Stockner
发明人： Dana R. Coldren , Alan R. Stockner
IPC分类号： F02M69/46 , F02M51/00
CPC分类号： F02M47/027 , F02M57/023 , F02M63/0035 , F02M63/0225
摘要： A fuel system includes a plurality of fuel injectors each defining a nozzle supply passage, a nozzle outlet, a low pressure space, and a drain. The fuel system includes a plurality of mechanically actuated pressure intensifiers each including a tappet and being positioned partially within one of the fuel injectors, and a common rail fluidly connecting with each of the fuel injectors. Each of the fuel injectors further includes an injection pressure control mechanism having an injection pressure control valve. Each injection pressure control valve blocks the corresponding pressure intensifier from the common rail and fluidly connects the pressure intensifier with the low pressure space at a first position, and fluidly connects the pressure intensifier with the common rail and blocks the pressure intensifier from the low pressure space at a second position. Each of the fuel injectors further includes a pressure recovery mechanism having a pressure recovery valve. Each pressure recovery valve blocks the corresponding pressure intensifier from the common rail and fluidly connects the low pressure space and the drain at the first position, and fluidly connects the low pressure space with the common rail and blocks the low pressure space from the drain at the second position. Injecting fuel via operating the fuel system may include operating the fuel system in a low leakage mode where the pressure intensifier displaces fuel at a low pressure, between high pressure injections.
摘要翻译：燃料系统包括多个燃料喷射器，每个燃料喷射器限定喷嘴供应通道，喷嘴出口，低压空间和排水口。燃料系统包括多个机械致动的压力增压器，每个压力增压器包括挺杆并且部分地位于一个燃料喷射器内，以及与每个燃料喷射器流体连接的共轨。每个燃料喷射器还包括具有喷射压力控制阀的喷射压力控制机构。每个喷射压力控制阀从共轨阻挡相应的增压器，并将压力增压器与第一位置处的低压空间流体连接，并且将压力增压器与公共导轨流体连接，并将压力增压器与低压空间在第二个位置。每个燃料喷射器还包括具有压力恢复阀的压力恢复机构。每个压力恢复阀从共轨阻塞相应的增压器，并将第一位置的低压空间与排水口流体连接，并将低压空间与共轨相流体连接，并将低压空间与排水管第二名通过操作燃料系统注入燃料可以包括以低泄漏模式操作燃料系统，其中增压器在高压注射之间以低压将燃料置换。

7. 发明授权

US09506434B2 Dual check fuel injector with single actuator 有权
标题翻译：双重检查燃油喷射器与单个执行器
公开(公告)号：US09506434B2
公开(公告)日：2016-11-29
申请号：US13597924
申请日：2012-08-29
申请人： Dana R. Coldren
发明人： Dana R. Coldren
IPC分类号： F02M47/02 , F02M43/04 , F02M45/08 , F02M61/04 , F02M61/18
CPC分类号： F02M43/04 , F02M45/086 , F02M61/045 , F02M61/1826
摘要： A fuel injector includes first and second check valve members that open and close first and second nozzle outlet sets, respectively, to inject two fuels that differ in at least one of chemical identity, pressure and molecular state. The first check valve member defines a through passage, includes a closing hydraulic surface exposed to fluid pressure in the first control chamber, and moves into and out of contact with a first seat on an injector body. The second check valve member includes a closing hydraulic surface exposed to fluid pressure in a second control chamber, and moves into and out of contact with a second seat located on the first check valve member. A control valve member is movable between first and second positions that respectively block and allow fluid communication between the first and second control chambers and a drain outlet.
摘要翻译：燃料喷射器包括第一和第二止回阀构件，其分别打开和关闭第一和第二喷嘴出口组，以注入在化学特征，压力和分子状态中的至少一个方面不同的两种燃料。第一止回阀构件限定了通过通道，包括暴露于第一控制室中的流体压力的关闭液压表面，并且进入和离开与喷射器主体上的第一座接触。第二止回阀构件包括在第二控制室中暴露于流体压力的关闭液压表面，并且移动到位于第一止回阀构件上的第二阀座和与其脱离接触。控制阀构件可在分别阻塞并允许第一和第二控制室与排水出口之间的流体连通的第一和第二位置之间移动。

8. 发明授权

US09181881B2 Co-axial quill assembly retainer and dual fuel common rail engine using same 有权
标题翻译：同轴套筒组件保持架和使用相同的双燃料共轨发动机
公开(公告)号：US09181881B2
公开(公告)日：2015-11-10
申请号：US13566225
申请日：2012-08-03
申请人： Daniel R. Baldwin , Dennis H. Gibson , Dana R. Coldren , Mark F. Sommars
发明人： Daniel R. Baldwin , Dennis H. Gibson , Dana R. Coldren , Mark F. Sommars
IPC分类号： F02M21/02 , F02D19/06
CPC分类号： F02D19/0647 , F02D19/0684 , F02D19/0689 , F02D19/0694 , F02M21/0281 , F02M21/0287 , Y02T10/32 , Y02T10/36 , Y10T29/49231
摘要： A dual fuel common rail engine supplies pressurized natural gas and liquid diesel fuel at different pressures through a co-axial quill assembly for direct injection from a single fuel injector into an engine cylinder. Each coaxial quill assembly includes a matched pair of inner and outer quills that are chosen to have dimensions that allow both quills to sealingly engage each fuel injector at a common conical seat responsive to a clamping force applied along an axis. Matched pairs of inner and outer quills are retained together during pre-installation handling with a retainer that is left between the inner and outer quills after installation in an engine.
摘要翻译：双燃料共轨发动机通过同轴套筒组件在不同的压力下提供加压天然气和液体柴油燃料，用于从单个燃料喷射器直接喷射到发动机气缸中。每个同轴套管组件包括一对匹配的内和外套筒，其被选择为具有允许套筒在一个共同的锥形座处密封地接合每个燃料喷射器的尺寸，以响应于沿轴线施加的夹紧力。在预安装操作期间，配对的内和外套筒被保持在一起，其中保持器在安装在发动机中之后留在内和外套筒之间。

9. 发明申请

US20090139491A1 SOLENOID ASSEMBLY HAVING SLOTTED STATOR 有权
标题翻译：具有锁定定子的电磁铁组件
公开(公告)号：US20090139491A1
公开(公告)日：2009-06-04
申请号：US11987776
申请日：2007-12-04
申请人： Mandar A. Joshi , Harish Krishnaswamy , Dana R. Coldren , Nadeem N. Bunni
发明人： Mandar A. Joshi , Harish Krishnaswamy , Dana R. Coldren , Nadeem N. Bunni
IPC分类号： F02M51/06 , H01F7/06 , F16K31/02 , H01F41/02
CPC分类号： H01F7/081 , F02M63/0015 , H01F7/127 , H01F7/1638 , H01F2007/1676 , H01F2007/1692 , Y10T29/4902
摘要： A solenoid assembly is disclosed. The solenoid assembly has a housing having a cavity disposed therein. The solenoid assembly also has a unitary stator having a plurality of separated portions. The separated portions are held together by at least one lip located on an outer periphery of the stator. The stator is sized to fit within the cavity disposed in the housing.
摘要翻译：公开了螺线管组件。螺线管组件具有设置在其中的腔体。螺线管组件还具有具有多个分离部分的单一定子。分离的部分通过位于定子的外周上的至少一个唇保持在一起。定子的尺寸设计成适合设置在壳体内的空腔。

10. 发明授权

US07455243B2 Electronic unit injector with pressure assisted needle control 有权
标题翻译：带压力辅助针控制的电子单元注射器
公开(公告)号：US07455243B2
公开(公告)日：2008-11-25
申请号：US10792169
申请日：2004-03-03
申请人： Dana R. Coldren , Mingchun Dong , Michael R. Huffman
发明人： Dana R. Coldren , Mingchun Dong , Michael R. Huffman
IPC分类号： F02M47/02 , F02D1/06
CPC分类号： F02M57/023 , F02M47/027 , F02M59/366 , F02M2547/008
摘要： An electronically controlled fuel injector includes a reduced part count and complexity over similar fuel injectors without a substantial reduction in performance capabilities. This is accomplished by using a one-piece needle that is hydraulically balanced and biased toward a closed position with a spring positioned in the needle control chamber. Although subtle, this injector has some ability to control the fuel pressure when the needle valve is opening and closing by adjusting a relative timing of a pressure control valve opening relative to a needle control chamber, using separate electrical actuators. The invention is particularly applicable to fuel injectors that cycle through high and low pressure states during and between injection events, respectively. Cam actuated fuel injectors being particularly well suited.
摘要翻译：电子控制的燃料喷射器包括相对于类似的燃料喷射器的减少的部件数目和复杂性，而性能能力没有显着降低。这是通过使用液压平衡的单件针并且通过设置在针控制室中的弹簧朝向关闭位置偏置来实现的。虽然微妙，但是通过使用单独的电致动器调节针阀相对于针控制室的压力控制阀开口的相对定时，该喷射器具有一些能力来控制针阀打开和关闭时的燃料压力。本发明特别适用于在喷射事件期间和之间分别在高压状态和低压状态下循环的燃料喷射器。凸轮致动燃油喷射器特别适合。

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