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公开(公告)号：US20150354473A1
公开(公告)日：2015-12-10
申请号：US14299185
申请日：2014-06-09
Applicant: Caterpillar Inc
Inventor： Behnaz Ensan , Steven Thomas Grant , Matthew Benjamin Yandell , Hardikkumar Shah , Sunil Jefferey Bean
CPC classification number: F02D19/0628 , F02D19/0647 , F02D19/105 , F02D41/0027 , F02D41/3836 , F02D2041/224 , F02D2200/0602 , G01L13/00 , Y02T10/36
Abstract: A system and method for detecting pressure deviation of a first fluid in an engine is disclosed. The method may comprise calculating, for each of a plurality of measurements, a delta between an actual first fluid pressure and a target pressure, summing each delta obtained from the calculating, and determining pressure deviation of the first fluid based on a cumulative sum of the deltas. In an embodiment, the first fluid may be natural gas.
Abstract translation: 公开了一种用于检测发动机中的第一流体的压力偏差的系统和方法。 该方法可以包括对于多个测量中的每一个计算实际的第一流体压力和目标压力之间的增量，对从计算得到的每个增量求和，并且基于所述第一流体的累积和来确定第一流体的压力偏差 三角洲 在一个实施例中，第一流体可以是天然气。
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公开(公告)号：US09091240B2
公开(公告)日：2015-07-28
申请号：US13749011
申请日：2013-01-24
Applicant: Caterpillar Inc.
Inventor： Steven Thomas Grant , Frank Lombardi , Daniel Reese Puckett , Cory A. Brown , Joshua Wayne Steffen , Paul Joseph Desiderio
CPC classification number: F02M69/00 , F02D19/02 , F02M21/02 , F02M21/0218 , F02M21/023 , F02M21/0236 , F02M21/0239 , Y02T10/32
Abstract: A system, related method and computer program product are disclosed for controlling fuel mass of CNG received by an engine. The system may comprise a heat exchanger configured to receive CLNG and supply coolant and to output CNG and return coolant, an injector configured to inject CNG into the engine, a gas line between the injector and heat exchanger, a control valve configured to receive return coolant from the heat exchanger and to change the amount of return coolant flowing through control valve, and a controller connected to the control valve. The gas line may be configured to carry CNG from the heat exchanger to the injector. The controller may be configured to maintain a Gas Line Temperature within an operating range by adjusting the amount of return coolant flowing through the control valve based, at least in part, on the Gas Line Temperature and a Target Return Coolant Temperature.
Abstract translation: 公开了一种用于控制由发动机接收的CNG的燃料质量的系统，相关方法和计算机程序产品。 该系统可以包括热交换器，其被配置为接收CLNG并供应冷却剂并输出CNG并返回冷却剂;配置成将CNG注入发动机的喷射器，喷射器和热交换器之间的气体管线;配置成接收返回冷却剂的控制阀 并且改变流过控制阀的冷却剂回流量，以及连接到控制阀的控制器。 气体管线可以被配置为将CNG从热交换器运送到喷射器。 控制器可以被配置为通过至少部分地基于气体管线温度和目标返回冷却剂温度调节流过控制阀的回流冷却剂的量来将气体管线温度维持在工作范围内。
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公开(公告)号：US20140331964A1
公开(公告)日：2014-11-13
申请号：US13890671
申请日：2013-05-09
Applicant: Caterpillar, Inc.
Inventor： Steven Thomas Grant , Frank Lombardi , Daniel R. Puckett , Alan R. Stockner
CPC classification number: F02D19/0602 , F02D19/0605 , F02D19/0623 , F02D19/0628 , F02D19/0647 , F02D19/0681 , F02D19/0694 , F02D19/10 , F02M43/00 , Y02T10/36
Abstract: A compression ignition engine is fueled from common rail fuel injectors that predominately inject natural gas fuel that is compression ignited with a small pilot injection of liquid diesel fuel. Prior to servicing the engine, a service tool may establish a communication link with an electronic controller that controls operation of the engine. Pressure information for a gaseous fuel common rail and a liquid fuel common rail are displayed with the service tool, when the engine is stopped, in order to determine whether the rails are completely depressurized indicating that it is then o.k. to perform servicing tasks.
Abstract translation: 压燃式发动机由共轨燃油喷射器燃料，其主要喷射天然气燃料，该天然气燃料通过小型先导式液体柴油燃料喷射被压缩点燃。 在维修发动机之前，服务工具可以建立与控制发动机运行的电子控制器的通信链路。 当发动机停止时，与维修工具一起显示用于气体燃料共轨和液体燃料共轨的压力信息，以便确定轨道是否被完全减压，从而指示其然后是o.k。 执行维修任务。
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4.发明申请Apparatus and Method for Detecting Leakage of Liquid Fuel into Gas Fuel Rail 审中-公开液体燃料泄漏到燃气轨道的装置和方法公开(公告)号：US20140238353A1
公开(公告)日：2014-08-28
申请号：US13778343
申请日：2013-02-27
Applicant: CATERPILLAR INC.
Inventor： Cory A. Brown , Michael A. Brown , Steven Thomas Grant , Daniel Reese Puckett, Jr.
IPC: F02M51/06
CPC classification number: F02M51/06 , F02D19/025 , F02D19/08 , Y02T10/32 , Y02T10/36
Abstract: Methods and systems for detecting leakage of a liquid fuel into a gas fuel rail of a dual-fuel system for an internal combustion engine are disclosed. The methods and systems include sending an injection signal from a controller to a fuel injector and subsequently injecting gas fuel and liquid fuel into a cylinder for combustion. A pressure in the gas rail detects the pressure in the gas rail over a pre-determined time period after the injection event. A controller measures pressure fluctuations in the gas rail over a pre-determined time period after the injection event. If the pressure in the gas rail fluctuates by more than the pre-determined amount, the controller is programmed to take at least one mitigating action to prevent or limit damage to the engine.
Abstract translation: 公开了一种用于检测液体燃料进入用于内燃机的双燃料系统的气体燃料轨道的泄漏的方法和系统。 所述方法和系统包括将喷射信号从控制器发送到燃料喷射器，随后将气体燃料和液体燃料喷射到用于燃烧的气缸中。 气体导轨中的压力在喷射事件之后的预定时间段内检测气轨中的压力。 控制器在注射事件之后的预定时间段内测量气轨中的压力波动。 如果气体轨道中的压力波动超过预定量，则控制器被编程为采取至少一个减轻措施来防止或限制对发动机的损坏。
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5.发明授权公开(公告)号：US09181886B2
公开(公告)日：2015-11-10
申请号：US13889574
申请日：2013-05-08
Applicant: Caterpillar, Inc.
Inventor： Steven Thomas Grant , Frank Lombardi , Daniel R. Puckett , Cory Brown
CPC classification number: F02D41/0025 , F02D19/0605 , F02D19/061 , F02D19/0694 , F02D19/10 , F02D41/0027 , F02D41/10 , F02D41/3845 , F02D2041/3881 , Y02T10/36
Abstract: A compression ignition engine is fueled from common rail fuel injectors that predominately inject natural gas fuel that is compression ignited with a small pilot injection of liquid diesel fuel. Before and after a rapid fueling increase transient, the liquid and gaseous rail pressures are controlled toward respective pressures based upon engine speed and load. During the transient, the liquid rail pressure is controlled toward an elevated liquid pressure in order to cause a surge in the supply of gaseous fuel to the gaseous fuel common rail to proactively satisfy the increased gaseous fuel injection rate while obviating a substantial pressure deficit in the gaseous fuel common rail.
Abstract translation: 压燃式发动机由共轨燃油喷射器燃料，其主要喷射天然气燃料，该天然气燃料通过小型先导式液体柴油燃料喷射被压缩点燃。 在快速加油增加瞬态之前和之后，基于发动机转速和负载，液压和气体轨道压力被控制到相应的压力。 在瞬态期间，将液体轨道压力控制到升高的液体压力，以便引起向气体燃料共轨供应气体燃料的浪涌，以主动满足增加的气体燃料喷射速率，同时避免在 气体燃料共轨。
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Patent Agency Ranking
6.发明申请DUAL FUEL COMMON RAIL SYSTEM AND METHOD OF TRANSITIONING FROM DIESEL ONLY TO DUAL FUEL METHOD OF OPERATION 有权双燃料通用铁路系统和从柴油转运到双燃料运行方法的方法公开(公告)号：US20140188372A1
公开(公告)日：2014-07-03
申请号：US13732619
申请日：2013-01-02
Applicant: CATERPILLAR INC.
Inventor： Daniel Puckett , Steven Thomas Grant , Frank Lombardi
IPC: F02D19/06
CPC classification number: F02D19/0615 , F02D19/061 , F02D19/0623 , F02D19/0684 , F02D19/0694 , F02D19/105 , F02M21/0281 , F02M63/0063 , F02M63/029 , Y02T10/32 , Y02T10/36
Abstract: A dual fuel common rail system may be operated in a regular mode in which a relatively large charge of gaseous fuel is ignited by compression igniting a relatively small injection quantity of liquid diesel fuel. The dual fuel system may be operated in a single fuel limp home mode in which liquid diesel fuel is injected at higher pressures. When transitioning from the single fuel limp home mode to the dual fuel regular mode, accumulated leaked liquid fuel in the gaseous nozzle chamber of each fuel injector is purged and burned in the respective engine cylinder.
Abstract translation: 双燃料共轨系统可以以常规模式操作，其中相对较大量的气体燃料通过压缩点燃，点燃相对较小量的液体柴油燃料。 双燃料系统可以在单一燃料跛行家庭模式中操作，其中液体柴油燃料在较高压力下喷射。 当从单一燃料跛行家庭模式转换到双重燃料正常模式时，每个燃料喷射器的气体喷嘴室中累积的泄漏的液体燃料在相应的发动机气缸中被清除和燃烧。
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7.发明授权公开(公告)号：US09518518B2
公开(公告)日：2016-12-13
申请号：US13866303
申请日：2013-04-19
Applicant: Caterpillar, Inc.
Inventor： Dana R. Coldren , Steven Thomas Grant , Frank Lombardi , Daniel R. Puckett
CPC classification number: F02D41/0025 , F02D19/0605 , F02D19/061 , F02D19/0694 , F02D19/10 , F02D41/0027 , F02D41/3836 , F02D41/3845 , F02D41/403 , F02D2041/3881 , F02D2200/0602
Abstract: A compression ignition engine is fueled from common rail fuel injectors that predominately inject natural gas fuel that is compression ignited with a small pilot injection of liquid diesel fuel. Before and after a rapid load loss transient, the liquid and gaseous rail pressures are controlled toward respective pressures based upon engine speed and load. During the transient, the liquid rail pressure is controlled relative to the gas rail pressure in order to maintain the liquid rail pressure greater than the gas pressure during the transient to avoid migration gaseous fuel into the liquid fuel side of the system.
Abstract translation: 压燃式发动机由共轨燃油喷射器燃料，其主要喷射天然气燃料，该天然气燃料通过小型先导式液体柴油燃料喷射被压缩点燃。 在快速负载损耗瞬变之前和之后，基于发动机转速和负载，将液体和气体轨道压力控制到相应的压力。 在瞬态期间，相对于气体轨道压力控制液体轨道压力，以便在瞬态期间保持液体轨道压力大于气体压力，以避免气态燃料进入系统的液体燃料侧。
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8.发明授权公开(公告)号：US08909457B2
公开(公告)日：2014-12-09
申请号：US13732619
申请日：2013-01-02
Applicant: Caterpillar Inc.
Inventor： Daniel Puckett , Steven Thomas Grant , Frank Lombardi
CPC classification number: F02D19/0615 , F02D19/061 , F02D19/0623 , F02D19/0684 , F02D19/0694 , F02D19/105 , F02M21/0281 , F02M63/0063 , F02M63/029 , Y02T10/32 , Y02T10/36
Abstract: A dual fuel common rail system may be operated in a regular mode in which a relatively large charge of gaseous fuel is ignited by compression igniting a relatively small injection quantity of liquid diesel fuel. The dual fuel system may be operated in a single fuel limp home mode in which liquid diesel fuel is injected at higher pressures. When transitioning from the single fuel limp home mode to the dual fuel regular mode, accumulated leaked liquid fuel in the gaseous nozzle chamber of each fuel injector is purged and burned in the respective engine cylinder.
Abstract translation: 双燃料共轨系统可以以常规模式操作，其中相对较大量的气体燃料通过压缩点燃，点燃相对较小量的液体柴油燃料。 双燃料系统可以在单一燃料跛行家庭模式中操作，其中液体柴油燃料在较高压力下喷射。 当从单一燃料跛行家庭模式转换到双重燃料正常模式时，每个燃料喷射器的气体喷嘴室中累积的泄漏的液体燃料在相应的发动机气缸中被清除和燃烧。
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公开(公告)号：US09657653B2
公开(公告)日：2017-05-23
申请号：US14299185
申请日：2014-06-09
Applicant: Caterpillar Inc
Inventor： Behnaz Ensan , Steven Thomas Grant , Matthew Benjamin Yandell , Hardikkumar Shah , Sunil Jefferey Bean
CPC classification number: F02D19/0628 , F02D19/0647 , F02D19/105 , F02D41/0027 , F02D41/3836 , F02D2041/224 , F02D2200/0602 , G01L13/00 , Y02T10/36
Abstract: A system and method for detecting pressure deviation of a first fluid in an engine is disclosed. The method may comprise calculating, for each of a plurality of measurements, a delta between an actual first fluid pressure and a target pressure, summing each delta obtained from the calculating, and determining pressure deviation of the first fluid based on a cumulative sum of the deltas. In an embodiment, the first fluid may be natural gas.
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公开(公告)号：US09064401B2
公开(公告)日：2015-06-23
申请号：US13888522
申请日：2013-05-07
Applicant: Caterpillar Inc.
Inventor： Steven Thomas Grant , Frank Lombardi , Daniel Reese Puckett
CPC classification number: G08B21/182 , B65D90/50 , F17C9/00 , F17C13/02 , F17C2221/033 , F17C2223/0161 , F17C2223/033 , F17C2223/046 , F17C2250/032 , F17C2250/0408 , F17C2250/0421 , F17C2250/0426 , F17C2250/043 , F17C2250/0439 , F17C2250/0473 , F17C2250/0491 , F17C2250/0495 , F17C2260/038 , F17C2265/06 , F17C2270/0581 , G01M3/3227 , G01M3/3245 , G01M3/3254
Abstract: A method of detecting leakage of a fluid from a tank is disclosed. The method may include determining cumulative commanded fluid consumption of the fluid in the tank over a selected time period, determining an actual change of a volume of the fluid in the tank over the selected time period, and comparing the cumulative commanded fluid consumption to the actual change of volume of the fluid. The method may further include producing a leak warning upon the actual change of volume of the fluid over the selected time period exceeding the cumulative commanded fluid consumption over the selected time period plus a threshold value.
Abstract translation: 公开了一种检测来自罐的流体泄漏的方法。 该方法可以包括在所选择的时间段内确定罐中的流体的累积指令流体消耗量，确定在所选择的时间段内罐中的流体的实际变化，以及将累积指令的流体消耗与实际 液体体积变化。 该方法可以进一步包括在所选择的时间段内超过在所选择的时间段内的累积指令的流体消耗加上阈值的流体的实际体积变化时产生泄漏警告。
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