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公开(公告)号：US08944033B2
公开(公告)日：2015-02-03
申请号：US13606422
申请日：2012-09-07
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。
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公开(公告)号：US20140069386A1
公开(公告)日：2014-03-13
申请号：US13606422
申请日：2012-09-07
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。
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3.发明申请公开(公告)号：US20140053800A1
公开(公告)日：2014-02-27
申请号：US13590518
申请日：2012-08-21
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。
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4.发明授权公开(公告)号：US08991363B2
公开(公告)日：2015-03-31
申请号：US13590518
申请日：2012-08-21
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。
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公开(公告)号：US07059301B2
公开(公告)日：2006-06-13
申请号：US10370000
申请日：2003-02-20
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。
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6.发明申请PRESSURE RECOVERY SYSTEM FOR LOW LEAKAGE CAM ASSISTED COMMON RAIL FUEL SYSTEM, FUEL INJECTOR AND OPERATING METHOD THEREFOR 审中-公开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
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。
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公开(公告)号：US20090159053A1
公开(公告)日：2009-06-25
申请号：US12338335
申请日：2008-12-18
申请人： Alan R. Stockner , Scott F. Shafer
发明人： Alan R. Stockner , Scott F. Shafer
IPC分类号： F02M37/04
CPC分类号： F02M59/442 , F02M59/44 , F02M63/027 , F04B1/0404 , F04B1/0421 , F04B53/16
摘要： A pumping element for pressurizing a fluid within a fluid pump includes a plunger reciprocally disposed within a bore defined in a barrel. The plunger and barrel at least partially define a pressurization chamber into which fluid is pressurized. A flow path is defined between the plunger and the bore, the flow path permitting fluid to pass from the pressurization chamber during pressurization of fluid disposed therein. A collection chamber is formed between the plunger and the bore, the collection chamber being disposed adjacent to the bore and being part of a cooling circuit for the pumping element. A plurality of weep openings is defined in the barrel and is fluidly connected to the collection chamber. A reduced diameter portion of the barrel forms an annular reservoir that receives fluid from the weep openings.
摘要翻译： 用于对流体泵内的流体加压的泵送元件包括往复地设置在限定在桶中的孔内的柱塞。 柱塞和桶至少部分地限定了加压室，流体被加压到该加压室中。 在柱塞和孔之间限定流动路径，允许流体在加压设置在其中的流体的加压期间允许流体从加压室通过。 收集室形成在柱塞和孔之间，收集室邻近孔并且是泵送元件的冷却回路的一部分。 在桶中限定了多个流出开口，并且流体地连接到收集室。 桶的直径减小部分形成一个环形储存器，其接收来自漏水开口的流体。
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公开(公告)号：US07543567B2
公开(公告)日：2009-06-09
申请号：US11976797
申请日：2007-10-29
申请人： Dennis H. Gibson , Alan R. Stockner
发明人： Dennis H. Gibson , Alan R. Stockner
CPC分类号： F02M55/02 , F02M55/005 , F02M61/14 , F02M63/0225
摘要： A fuel system for an engine including a cylinder head having a first bore and a second bore intersecting the first bore is disclosed. The fuel system includes a common rail and a fuel injector coupled to the cylinder head and at least partially received within the first bore. The fuel system also includes a one-piece hollow tube, extending linearly from the common rail to the fuel injector through the second bore. The one-piece hollow tube is configured to communicate high pressure fuel from the common rail to the fuel injector.
摘要翻译： 公开了一种用于发动机的燃料系统，其包括具有与第一孔相交的第一孔和第二孔的气缸盖。 燃料系统包括共轨和联接到气缸盖并且至少部分地容纳在第一孔内的燃料喷射器。 燃料系统还包括一体式中空管，其通过第二孔从共轨直线延伸到燃料喷射器。 一体式中空管构造成将来自共轨的高压燃料与燃料喷射器相通。
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公开(公告)号：US06955114B2
公开(公告)日：2005-10-18
申请号：US10729539
申请日：2003-12-05
申请人： Alan R. Stockner , Norval J. Wiemken , Scott F. Shafer , Gene R. Slinkard , Mark S. Cavanagh , Ye Tian
发明人： Alan R. Stockner , Norval J. Wiemken , Scott F. Shafer , Gene R. Slinkard , Mark S. Cavanagh , Ye Tian
IPC分类号： F02M47/00 , F02M47/02 , F02M51/00 , F02M63/00 , F15B13/02 , F15B13/044 , F16K11/00 , G05D16/00
CPC分类号： F02M47/027 , F02M63/0045 , F02M2200/28 , Y10T137/86622
摘要： The present invention relates to high speed control valves which are especially applicable for use in fuel injection systems. Producing a valve with a quick response time within acceptable packaging constraints and with a structure that allows the valve to be mass produced with consistent performance between valves is extremely problematic. By moving flow restrictions within the valve away from the valve seats, flow forces on the valve member can be reduced, while possibly also permitting a reduction in the necessary travel distance of the valve member to improve response time and other performance characteristics. The valve is particularly applicable in controlling hydraulic pressure applied to the closing hydraulic surface of a direct control needle valve in a fuel injector.
摘要翻译： 本发明涉及特别适用于燃料喷射系统的高速控制阀。 在可接受的包装限制内产生具有快速响应时间的阀门，并且具有允许阀门在阀门之间具有一致性能的批量生产的结构是非常有问题的。 通过将阀内的流动限制移动离开阀座，可以减小阀构件上的流动力，同时还可以减小阀构件的必要的行进距离以改善响应时间和其他性能特征。 该阀特别适用于控制施加到燃料喷射器中的直接控制针阀的关闭液压表面的液压。
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10.发明授权Hydraulic fuel injection system with independently operable direct control needle valve 失效液压燃油喷射系统，具有可独立操作的直接控制针阀公开(公告)号：US06951204B2
公开(公告)日：2005-10-04
申请号：US10637452
申请日：2003-08-08
申请人： Scott F. Shafer , Alan R. Stockner , Norval J. Wiemken , Ye Tian
发明人： Scott F. Shafer , Alan R. Stockner , Norval J. Wiemken , Ye Tian
CPC分类号： F02D41/2096 , F02D41/403 , F02M45/08 , F02M47/027 , F02M57/023 , F02M57/025
摘要： A common rail fuel injection system addresses three basic issues involving all common rail fuel injection systems. These include high performance, low variability and high efficiency. These issues are addressed by combining pressure intensification with a three way needle control valve, which exhibits substantial leakage only durring a brief instant when the valve is moving between seats. A quick acting needle control valve tightly coupled to a responsive direct control needle valve, as modified by relative timing with a flow control valve, can produce a wide variety of fuel injection rate shapes, including up to five or more discrete injections per engine cycle.
摘要翻译： 共轨燃油喷射系统涉及涉及所有共轨燃油喷射系统的三个基本问题。 这些包括高性能，低变异性和高效率。 这些问题通过将压力增强与三通针阀控制阀组合来解决，该阀在阀门在座椅之间移动时短时间内显示出实质性的泄漏。 紧密耦合到响应式直接控制针阀的快速作用针控制阀，通过与流量控制阀的相对定时进行修改，可以产生各种各样的燃料喷射速率形状，包括每个发动机循环多达五次或更多次离散喷射。
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