公开(公告)号：US5975050A

公开(公告)日：1999-11-02

申请号：US36110

申请日：1998-03-06

申请人： Scott C. Brown ,  Eric W. Ohlson ,  Martin L. Willi

发明人： Scott C. Brown ,  Eric W. Ohlson ,  Martin L. Willi

IPC分类号： F02B7/06 ,  F02D19/08 ,  F02D41/00 ,  F02M21/02

CPC分类号： F02D19/105 ,  F02B7/06 ,  F02D19/027 ,  F02D19/061 ,  F02D19/0692 ,  Y02T10/32 ,  Y02T10/36

摘要： A method for adjusting a fuel control system of an engine capable of operating in both a first mode during which only a first fuel is delivered to the engine and a second mode during which both the first fuel and a second fuel are delivered to the engine includes operating the engine in the first mode during which a governor output value (X.sub.M1) is established and stored in memory. The engine is then operated in the second mode during which a governor output value (X.sub.M2) is established. The governor output value (X.sub.M2) is compared with the stored governor output value (X.sub.M1) and a stored second fuel energy content value is adjusted based upon the comparison. The actual energy content of the second fuel can also be directly calculated.

摘要翻译： 一种用于调节发动机的燃料控制系统的方法，所述发动机能够在仅向所述发动机输送第一燃料的第一模式和所述第一燃料和所述第二燃料都被输送到所述发动机的第二模式的同时进行操作 在其中建立调速器输出值（XM1）并存储在存储器中的第一模式下操作发动机。 然后在第二模式下运行发动机，在该模式期间建立调速器输出值（XM2）。 将调速器输出值（XM2）与存储的调速器输出值（XM1）进行比较，并且基于比较来调整存储的第二燃料能量内容值。 第二燃料的实际能量含量也可以直接计算。

公开(公告)号：US5868121A

公开(公告)日：1999-02-09

申请号：US995254

申请日：1997-12-19

申请人： Scott C. Brown ,  Jeffery T. Fischer ,  Eric W. Ohlson ,  Martin L. Willi

发明人： Scott C. Brown ,  Jeffery T. Fischer ,  Eric W. Ohlson ,  Martin L. Willi

IPC分类号： F02D19/02 ,  F02D19/10 ,  F02M21/02 ,  F02M21/00

CPC分类号： F02D19/0631 ,  F02D19/022 ,  F02D19/027 ,  F02D19/105 ,  F02M21/0242 ,  F02M21/0254 ,  F02M21/0266 ,  Y02T10/32 ,  Y02T10/36

摘要： A fuel pressure relief system for a dual fuel engine including at least one gaseous fuel admission valve positioned between a gaseous fuel inlet region and an air intake region is provided. The system includes a first pressure sensor positioned in the gaseous fuel inlet region and a second pressure sensor positioned in the air intake region. An electronic controller is connected to the first pressure sensor and the second pressure sensor. A gaseous fuel vent path extends between the gaseous fuel inlet region and a portion of an air intake path of the engine. A vent valve is positioned along the gaseous fuel vent path and is connected to the electronic controller for control thereby. When the differential pressure across the gaseous fuel admission valve exceeds a predetermined level the fuel vent valve is opened to relieve the pressure.

摘要翻译： 提供了一种用于双燃料发动机的燃料压力释放系统，其包括位于气体燃料入口区域和进气区域之间的至少一个气体燃料进入阀。 该系统包括位于气体燃料入口区域中的第一压力传感器和位于进气区域中的第二压力传感器。 电子控制器连接到第一压力传感器和第二压力传感器。 气体燃料通气路径在气体燃料入口区域和发动机的进气路径的一部分之间延伸。 排气阀沿着气体燃料通气路径定位，并连接到电子控制器以进行控制。 当气体燃料进入阀两端的压差超过预定值时，打开燃油通气阀以减轻压力。

公开(公告)号：US6101986A

公开(公告)日：2000-08-15

申请号：US36198

申请日：1998-03-06

申请人： Scott C. Brown ,  Martin L. Willi

发明人： Scott C. Brown ,  Martin L. Willi

IPC分类号： F02D19/10 ,  F02D31/00 ,  F02D33/00 ,  F02D41/00 ,  F02M21/02

CPC分类号： F02D41/0025 ,  F02D19/061 ,  F02D19/0628 ,  F02D19/105 ,  F02D31/007 ,  F02D33/00 ,  F02D41/0027 ,  Y02T10/36

摘要： A method for transitioning between a first operating mode of a dual fuel engine and a second operating mode of the dual fuel engine includes establishing a final liquid fuel amount desired to be delivered to the engine upon completion of the transition to the second operating mode. Delivery of liquid fuel to the engine is adjusted by a first amount and, correspondingly, delivery of gaseous fuel to the engine is adjusted by a second amount, where an energy content of the first amount of liquid fuel is substantially the same as an energy content of the second amount of gaseous fuel. A determination is made as to whether liquid fuel is being delivered to the engine in an amount which is substantially the same as the desired final liquid amount previously established. The fuel adjustment step and the determination step are repeated until a determination is made that liquid fuel is being delivered to the engine in an amount which is substantially the same as the desired final liquid fuel amount, at which point the transition is considered complete.

摘要翻译： 一种用于在双燃料发动机的第一操作模式和双燃料发动机的第二操作模式之间转换的方法包括在完成向第二操作模式的转变时建立期望输送到发动机的最终液体燃料量。 向发动机的液体燃料的输送被调节第一量，相应地，向发动机的气体燃料的输送被调节第二量，其中第一量的液体燃料的能量含量基本上与能量含量相同 的第二量的气体燃料。 确定液体燃料是否以与先前建立的所需最终液体量基本相同的量被输送到发动机。 重复燃料调节步骤和确定步骤，直到确定液体燃料以与期望的最终液体燃料量基本相同的量被输送到发动机为止，此时过渡被认为是完整的。

公开(公告)号：US6044806A

公开(公告)日：2000-04-04

申请号：US994693

申请日：1997-12-19

申请人： Scott C. Brown ,  Martin L. Willi

发明人： Scott C. Brown ,  Martin L. Willi

IPC分类号： F02B69/00 ,  F02B69/04 ,  F02B77/08 ,  F02D19/10 ,  F02D41/00 ,  F02D41/22 ,  F02B1/10

CPC分类号： F02D41/221 ,  F02D19/025 ,  F02D19/027 ,  F02D19/0623 ,  F02D19/105 ,  F02D41/0027 ,  F02M21/0254 ,  F02B69/00 ,  F02B69/04 ,  F02B77/08 ,  F02D2041/225 ,  F02D2041/228 ,  F02D2200/0612 ,  F02D41/0025 ,  Y02T10/32 ,  Y02T10/36 ,  Y02T10/40

摘要： A method of detecting leakage through a gaseous fuel admission valve of a dual fuel engine including at least one such gaseous fuel admission valve and a gaseous fuel shut off valve includes determining a liquid fuel rate when the engine is operating in a liquid fuel mode and the gaseous fuel shut off valve is closed. The gaseous fuel shut off valve is thereafter opened while the engine is operating in the liquid fuel mode. A liquid fuel rate is determined after the gaseous fuel shut off valve is opened and the liquid fuel rate determined before opening of the gaseous fuel shut off valve is compared with the liquid fuel rate determined after opening of the gaseous fuel shut off valve. A detonation level within the engine cylinder may also be checked to determine if such detonation level exceeds a predetermined level indicative of gaseous fuel leakage. The detonation level check may also be utilized in a spark-ignited engine.

摘要翻译： 检测通过包括至少一个这样的气体燃料入口阀和气体燃料截止阀的双燃料发动机的气体燃料入口阀的泄漏的方法包括当发动机以液体燃料模式运行时确定液体燃料速率， 气体燃料截止阀关闭。 之后气体燃料切断阀在发动机以液体燃料模式运转时打开。 在气体燃料截止阀打开之后并且在气体燃料切断阀打开之前确定的液体燃料比与在气体燃料截止阀打开之后确定的液体燃料比进行比较来确定液体燃料速率。 还可以检查发动机气缸内的爆震水平以确定这种爆震水平是否超过指示气体燃料泄漏的预定水平。 引爆水平检查也可用于火花点火发动机。

公开(公告)号：US6009860A

公开(公告)日：2000-01-04

申请号：US38582

申请日：1998-03-11

申请人： Scott C. Brown ,  Martin L. Willi

发明人： Scott C. Brown ,  Martin L. Willi

IPC分类号： F02D17/04 ,  F02D19/02 ,  F02D19/10 ,  F02B43/00

CPC分类号： F02D19/027 ,  F02D17/04 ,  F02D19/024 ,  F02D19/025 ,  F02D19/0623 ,  F02D19/105 ,  Y02T10/32 ,  Y02T10/36

摘要： A method for responding to detection of an open fault condition in a gaseous fuel admission valve for providing a flow of gaseous fuel to an affected combustion cylinder of an engine, the engine including at least one other gaseous fuel admission valve for providing a flow of gaseous fuel to at least one other combustion cylinder, a gaseous fuel shut off valve for controlling gaseous fuel flow from a source of gaseous fuel to a gaseous fuel manifold in communication with the gaseous fuel admission valve, and apparatus for causing ignition of a mixture of the gaseous fuel and air in each combustion cylinder. The present method involves the steps of closing the gaseous fuel shut off valve; disabling the ignition of the mixture of gaseous fuel and air in the affected combustion cylinder; and continuing operation of the at least one other gaseous fuel admission valve to allow flow of remaining gaseous fuel in the gaseous fuel manifold through the at least one other gaseous fuel admission valve into the at least one other combustion cylinder of the engine where the gaseous fuel can be combusted. In the instance of an engine operating in a dual fuel mode, at a suitable point, operation can be shifted to a liquid fuel mode. In the instance of an engine that operates solely on gaseous fuel, once the gaseous fuel remaining in the gaseous fuel manifold is exhausted, the engine will come to rest.

摘要翻译： 一种用于响应于气体燃料入口阀中的开路故障状况的检测的方法，用于向发动机的受影响的燃烧气缸提供气体燃料流，所述发动机包括至少一个其它气体燃料入口阀，用于提供气体 燃料到至少另一个燃烧气缸，用于控制气态燃料从气态燃料源流到与气体燃料入口阀连通的气体燃料歧管的气体燃料截止阀，以及用于使得 气体燃料和每个燃烧气瓶中的空气。 本方法包括关闭气态燃料截止阀的步骤; 使受影响的燃烧气缸中的气体燃料和空气的混合物点火; 以及继续操作所述至少一个其它气体燃料入口阀，以允许所述气体燃料歧管中的剩余气体燃料通过所述至少一个其它气体燃料入口阀进入所述发动机的所述至少一个其它燃烧气缸中，其中所述气体燃料 可以燃烧。 在以双燃料模式工作的发动机的情况下，在合适的点，操作可以转移到液体燃料模式。 在仅使用气体燃料的发动机的情况下，一旦残留在气体燃料歧管中的气体燃料被排出，发动机就会停止。

公开(公告)号：US6000384A

公开(公告)日：1999-12-14

申请号：US36348

申请日：1998-03-06

申请人： Scott C. Brown ,  Martin L. Willi

发明人： Scott C. Brown ,  Martin L. Willi

IPC分类号： F02D19/10 ,  F02D35/02 ,  F02D41/00 ,  F02D41/14 ,  F02D41/34 ,  F02M25/00

CPC分类号： F02D41/0085 ,  F02D19/061 ,  F02D19/0631 ,  F02D19/105 ,  F02D35/027 ,  F02D41/0027 ,  F02D41/1446 ,  F02D41/2458 ,  Y02T10/36

摘要： A method for controlling delivery of fuel to each cylinder of an engine by adjusting the appropriate fuel valve duration times to each such cylinder based upon either a desired cylinder exhaust port temperature, or a predetermined detonation level. By using the exhaust port temperature measurements and/or detonation level measurements from each individual cylinder as a controlling parameter, the delivery of fuel to that particular cylinder can be trimmed to achieve the desired exhaust port temperature and/or predetermined detonation level. Balancing the exhaust port temperature and/or detonation level for each such cylinder to a common desired exhaust port temperature and/or detonation level likewise produces a substantially identical air/fuel ratio in each such cylinder. Both the exhaust port temperature control loop and the detonation control loop can be initiated at predetermined intervals so as to continuously maintain a balanced air/fuel ratio to each cylinder in any particular engine and, in certain situations, both control loops can operate simultaneously with respect to any particular cylinder.

摘要翻译： 通过基于期望的气缸排气口温度或预定的爆震水平来调节每个这样的气缸的适当的燃料阀持续时间来控制向发动机的每个气缸的输送的方法。 通过使用来自每个单独气缸的排气口温度测量和/或爆轰水平测量作为控制参数，可以调整到该特定气缸的燃料输送以实现期望的排气口温度和/或预定的爆震水平。 将每个这种气缸的排气口温度和/或爆轰水平平衡到共同的期望的排气口温度和/或爆震水平同样在每个这种气缸中产生基本上相同的空气/燃料比。 排气口温度控制回路和爆震控制回路都可以以预定的间隔开始，以便在任何特定的发动机中连续保持与每个气缸的平衡的空气/燃料比，并且在某些情况下，两个控制回路可以相对于 到任何特定的气缸。

公开(公告)号：US06289871B1

公开(公告)日：2001-09-18

申请号：US09036045

申请日：1998-03-06

申请人： Scott C. Brown ,  Jeffery T. Fischer ,  Martin L. Willi

发明人： Scott C. Brown ,  Jeffery T. Fischer ,  Martin L. Willi

IPC分类号： F02B300

CPC分类号： F02D41/008 ,  F02D19/061 ,  F02D19/0628 ,  F02D19/105 ,  F02D35/023 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/1446 ,  Y02T10/36

摘要： A method for controlling and adjusting the delivery of liquid pilot fuel to each cylinder of a dual fuel engine during a dual fuel operating mode so as to both minimize the quantity of liquid pilot fuel being delivered to each individual cylinder while, at the same time, ensuring that such minimum quantity of liquid pilot fuel provides complete combustion performance within each such cylinder wherein certain cylinder performance parameters such as exhaust port temperature or cylinder pressure are evaluated on a per cylinder basis in order to determine cylinder performance. The present method establishes certain predetermined incremental changes in the selected cylinder performance parameters, which changes are indicative of poor or deteriorated combustion performance within any particular cylinder, and thereafter varies the amount of liquid pilot fuel delivered to such cylinder based upon an analysis and evaluation of changes occurring in the selected cylinder performance parameters. Although it is preferred that each cylinder be evaluated on an individual basis, it is recognized and anticipated that, in some applications, the present method may be used to control the delivery of liquid pilot fuel to two or more cylinders simultaneously.

摘要翻译： 一种用于在双燃料运行模式期间控制和调节液体引燃燃料输送到双燃料发动机的每个气缸的方法，以便使输送到每个气缸的液体引燃燃料的量最小化，同时， 确保这种最小量的液体引燃燃料在每个这样的气缸内提供完整的燃烧性能，其中某些气缸性能参数（例如排气口温度或气缸压力）以每缸为基础进行评估，以便确定气缸性能。 本方法在所选择的气缸性能参数中建立某些预定的增量变化，该变化指示在任何特定气缸内的燃烧性能差或劣化，然后根据分析和评价来改变输送到这种气缸的液体引燃燃料的量 所选气缸性能参数发生变化。 虽然优选每个气缸在个别基础上进行评估，但是应当认识到并预期在某些应用中，本方法可用于控制液体引燃燃料同时向两个或多个气缸的输送。

公开(公告)号：US6158418A

公开(公告)日：2000-12-12

申请号：US388575

申请日：1999-09-01

申请人： Scott C. Brown ,  Martin L. Willi

发明人： Scott C. Brown ,  Martin L. Willi

IPC分类号： F02D19/10 ,  F02D35/02 ,  F02D41/00 ,  F02D41/14 ,  F02D41/34 ,  F02M7/00

CPC分类号： F02D41/0085 ,  F02D19/061 ,  F02D19/0631 ,  F02D19/105 ,  F02D35/027 ,  F02D41/0027 ,  F02D41/1446 ,  F02D41/2458 ,  Y02T10/36

摘要： A method for controlling delivery of fuel to each cylinder of an engine by adjusting the appropriate fuel valve duration times to each such cylinder based upon a predetermined detonation level. By using the detonation level measurements from each individual cylinder as a controlling parameter, the delivery of fuel to that particular cylinder can be trimmed to achieve the predetermined detonation level. Balancing the detonation level for each such cylinder to a common detonation level likewise produces a substantially identical air/fuel ratio in each such cylinder. The detonation control loop can be initiated at predetermined intervals so as to continuously maintain a balanced air/fuel ratio to each cylinder in any particular engine.

摘要翻译： 通过基于预定的爆震水平调节每个这种气缸的适当的燃料阀持续时间来控制燃料对发动机的每个气缸的输送的方法。 通过使用来自每个单独气缸的爆轰水平测量作为控制参数，可以修剪向特定气缸的燃料输送以达到预定的爆震水平。 将每个这样的气缸的爆轰水平平衡到共同的爆震水平同样在每个这样的气缸中产生基本相同的空气/燃料比。 爆震控制回路可以以预定间隔开始，以便在任何特定的发动机中连续保持与每个气缸的平衡的空气/燃料比。

公开(公告)号：US6055963A

公开(公告)日：2000-05-02

申请号：US36111

申请日：1998-03-06

申请人： Scott C. Brown ,  Martin L. Willi

发明人： Scott C. Brown ,  Martin L. Willi

IPC分类号： F02D41/00 ,  F02M21/02

CPC分类号： F02D41/0027 ,  F02D19/027 ,  F02D19/029 ,  F02D19/105 ,  F02M21/0215 ,  Y02T10/32 ,  Y02T10/36

摘要： A method for adjusting a fuel control system of an internal combustion engine to account for variations in the energy content of a fuel delivered to the engine involves monitoring the O.sub.2 level of the engine exhaust gases. The fuel may be a gaseous fuel for example. The fuel control system utilizes a stored gaseous fuel energy content value (E.sub.G) to determine the necessary duration of a gaseous fuel admission valve control signal. The method includes sensing an actual engine exhaust gas O.sub.2 level and comparing the actual exhaust gas O.sub.2 level with a desired exhaust gas O.sub.2 level. The stored gaseous fuel energy content value (E.sub.G) is adjusted based upon the comparison. The desired exhaust gas O.sub.2 level may be determined as a function of one or more engine operating parameters which indicate a desired or expected air/fuel ratio, the level of O.sub.2 in the exhaust gases being an indicator of the air/fuel ratio.

摘要翻译： 用于调节内燃机的燃料控制系统以解决输送到发动机的燃料的能量含量的变化的方法包括监测发动机废气的O2水平。 燃料可以是例如气体燃料。 燃料控制系统利用储存的气体燃料能量含量值（EG）来确定气体燃料入口阀控制信号的必要持续时间。 该方法包括感测实际的发动机排气O 2水平并将实际排气O2水平与期望的排气O 2水平进行比较。 基于比较来调节储存的气体燃料能量含量值（EG）。 可以根据指示所需或期望的空气/燃料比的一个或多个发动机操作参数来确定期望的废气O 2水平，排气中的O 2水平作为空气/燃料比的指标。

公开(公告)号：US08540714B2

公开(公告)日：2013-09-24

申请号：US12777369

申请日：2010-05-11

申请人： J. Eric Gordon ,  Mark D. Landes ,  David W. Daniels ,  Scott C. Brown

发明人： J. Eric Gordon ,  Mark D. Landes ,  David W. Daniels ,  Scott C. Brown

IPC分类号： A61B17/72

CPC分类号： A61B17/72 ,  A61B17/1725 ,  A61B17/7233

摘要： Among other things, there are disclosed embodiments of an intramedullary nail system for use in pediatric cases, including an intramedullary nail and a targeting assembly. Embodiments of the nail may be one-piece and include a proximal portion, a medial portion and a distal portion. The junction of the medial portion and distal portion is a bend that provides a small angle between the medial portion and the distal portion as viewed when the nail is substantially in a medial-lateral plane. The targeting assembly attaches to the proximal portion of the nail securely and enables easy insertion of fixing screws.

摘要翻译： 除其他之外，公开了用于儿科病例的髓内钉系统的实施例，包括髓内钉和靶向组件。 指甲的实施例可以是一体的，并且包括近端部分，中间部分和远端部分。 中间部分和远端部分的接合点是当指甲基本上处于中间 - 内侧平面时观察到的在中间部分和远侧部分之间提供小角度的弯曲部。 瞄准组件可靠地附接到钉的近端部分，并且能够容易地插入固定螺钉。