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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:US20140123626A1
公开(公告)日:2014-05-08
申请号:US13667428
申请日:2012-11-02
Applicant: CATERPILLAR INC.
Inventor: Cory Andrew Brown , Joshua Wayne Steffen
IPC: F01N3/02
CPC classification number: F01N3/0205 , F01N2410/06 , F02M43/00 , Y02T10/20
Abstract: The present disclosure is directed to a system for reducing the cold start time for a vehicle with a twin fuel engine. The system has an exhaust system, from which exhaust is discharged and collected on an exhaust manifold. A heat exchanger is positioned within the exhaust system, with coolant flow passages in thermal communication with the engine, and the heat exchanger. A control valve is coupled to a first flow path operable to direct the exhaust through the heat exchanger across the first flow path and a second flow path in selective amounts.
Abstract translation: 本公开涉及一种用于减少具有双燃料发动机的车辆的冷启动时间的系统。 该系统具有排气系统,从排气系统排出废气并将其收集在排气歧管上。 热交换器位于排气系统内,其中冷却剂流动通道与发动机和热交换器热连通。 控制阀联接到第一流动路径,该第一流动路径可操作以引导穿过第一流动路径的排气通过热交换器和选择量的第二流动路径。
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公开(公告)号:US20160102617A1
公开(公告)日:2016-04-14
申请号:US14511918
申请日:2014-10-10
Applicant: Caterpillar Inc.
Inventor: Dana Ray Coldren , Joshua Wayne Steffen , Robert Michael Campion
CPC classification number: F02D19/0628 , B61C5/00 , B61C17/02 , F02D19/061 , F02D19/0642 , F02D19/0697 , F02D19/10 , F02D41/0025 , F02D41/0027 , F02D41/3017 , F02D41/3035 , F02D41/3076 , F02D2200/0602 , F02D2200/0606 , F02M43/00 , F02M2200/247 , F02M2200/248 , F02M2200/95 , Y02T10/36
Abstract: A fuel system is disclosed that is capable of operating in multiple combustion modes. A method is also disclosed of operating a dual fuel engine in conjunction with the fuel system. The method may include detecting a performance parameter of gaseous fuel in the fuel system. The method may also include selecting a combustion mode from a plurality of combustion modes based on the performance parameter. The method may further include injecting gaseous fuel and liquid fuel into at least one cylinder of the engine according to an injection timing corresponding to the selected combustion mode.
Abstract translation: 公开了能够以多种燃烧模式操作的燃料系统。 还公开了一种与燃料系统一起操作双燃料发动机的方法。 该方法可以包括检测燃料系统中气体燃料的性能参数。 该方法还可以包括基于性能参数从多个燃烧模式中选择燃烧模式。 该方法可以进一步包括根据对应于所选择的燃烧模式的喷射定时将气体燃料和液体燃料喷射到发动机的至少一个气缸中。
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公开(公告)号:US09926922B2
公开(公告)日:2018-03-27
申请号:US14610921
申请日:2015-01-30
Applicant: Caterpillar Inc.
CPC classification number: F04B39/10 , F02M43/02 , F04B1/143 , F04B1/16 , F04B15/08 , F04B53/14 , F04B53/16 , F04B2015/081 , Y02T10/32
Abstract: A barrel assembly for a pumping mechanism includes a first end, a second end opposite the first end, and a plunger bore configured to receive a plunger for sliding within the plunger bore. The barrel assembly also includes at least one inlet passage including at least one inlet extending through the first end and fluidly connected to the plunger bore to communicate fluid from the at least one inlet passage to the plunger bore. The barrel assembly further includes an outlet passage fluidly connected to the plunger bore and configured to receive fluid from the plunger bore, the plunger bore and the outlet passage forming separate openings in the second end of the barrel assembly.
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公开(公告)号:US09828987B2
公开(公告)日:2017-11-28
申请号:US14610264
申请日:2015-01-30
Applicant: Caterpillar Inc.
Inventor: Joshua Wayne Steffen , Cory Andrew Brown
CPC classification number: F04B49/24 , F02M21/0215 , F02M21/0245 , F02M21/0287 , F02M59/025 , F02M59/38 , F04B1/14 , F04B15/08 , F04B23/02 , F04B23/021 , F04B23/06 , F04B49/02 , F04B53/08 , F04B53/10 , F04B2015/081 , Y02T10/32
Abstract: A pump includes a reservoir configured to receive a fluid pressurized by a boost pump. The pump also includes at least one pumping mechanism configured to receive a first flow of fluid from the reservoir and direct the first flow of fluid into a discharge passage of the pump without pumping the first flow of fluid when priming the pump. The at least one pumping mechanism is disposed in the reservoir such that the fluid in the reservoir surrounds at least a portion of the at least one pumping mechanism. The discharge passage is configured to output the first flow of fluid from the pump. The pump further includes a bypass passage configured to communicate a second flow of fluid from the reservoir to the storage tank.
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公开(公告)号:US09695758B2
公开(公告)日:2017-07-04
申请号:US14511918
申请日:2014-10-10
Applicant: Caterpillar Inc.
Inventor: Dana Ray Coldren , Joshua Wayne Steffen , Robert Michael Campion
CPC classification number: F02D19/0628 , B61C5/00 , B61C17/02 , F02D19/061 , F02D19/0642 , F02D19/0697 , F02D19/10 , F02D41/0025 , F02D41/0027 , F02D41/3017 , F02D41/3035 , F02D41/3076 , F02D2200/0602 , F02D2200/0606 , F02M43/00 , F02M2200/247 , F02M2200/248 , F02M2200/95 , Y02T10/36
Abstract: A fuel system is disclosed that is capable of operating in multiple combustion modes. A method is also disclosed of operating a dual fuel engine in conjunction with the fuel system. The method may include detecting a performance parameter of gaseous fuel in the fuel system. The method may also include selecting a combustion mode from a plurality of combustion modes based on the performance parameter. The method may further include injecting gaseous fuel and liquid fuel into at least one cylinder of the engine according to an injection timing corresponding to the selected combustion mode.
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公开(公告)号:US20140202429A1
公开(公告)日:2014-07-24
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
IPC: F02M69/00
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:US10041447B2
公开(公告)日:2018-08-07
申请号:US14610566
申请日:2015-01-30
Applicant: Caterpillar Inc.
Inventor: Sunil Jefferey Bean , Joshua Wayne Steffen , Dana Ray Coldren , Cory Andrew Brown , Robert Michael Campion
Abstract: A manifold for a pump is configured to connect to a jacket to form a reservoir and to connect to at least one pumping mechanism disposed within the reservoir. The manifold includes a first side including a first side surface configured to face the reservoir and a second side including a second side surface. The manifold also includes a bypass passage, at least one push rod guide bore extending through the first side surface and the second side surface, and a leakage passage fluidly connecting the at least one push rod guide bore to an outlet disposed outside the first side surface. The manifold further includes a discharge passage including at least one inlet disposed in the first side surface, and the at least one inlet is configured to receive fluid pumped by the at least one pumping mechanism.
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公开(公告)号:US20170045022A1
公开(公告)日:2017-02-16
申请号:US14824919
申请日:2015-08-12
Applicant: Caterpillar Inc.
Inventor: Joshua Wayne Steffen , Sunil Bean , Cory Andrew Brown , Robert Campion
CPC classification number: F02M37/04 , F02M21/0215 , F02M21/0221 , F02M21/0245 , F02M37/0047 , F04B9/10 , F04B17/05 , F04B49/065 , F04B49/08 , F04B2205/05 , F04B2205/09 , F04B2205/10 , Y02T10/32
Abstract: A fuel pump system configured to control a pressure pulse within a fuel system. The fuel pump system includes a conduit and a pump fluidly coupled to the conduit. The conduit has a conduit volume and is configured to contain fuel within. The pump includes a first pump stage in which the pump defines a maximum pump displacement and a second pump stage in which the pump defines a minimum pump displacement. The pump is configured to provide an output mass of fuel to the conduit when the pump transitions from the first pump stage to the second pump stage, causing pressure of the fuel within the conduit to pulse. The maximum pump displacement is set to a value defined by a ratio of the output mass of fuel per the conduit volume needed to maintain the pressure pulse in the conduit within a predetermined pressure pulse range.
Abstract translation: 一种配置成控制燃料系统内的压力脉冲的燃料泵系统。 燃料泵系统包括导管和流体地联接到导管的泵。 导管具有导管容积并被构造成在其内容纳燃料。 泵包括第一泵级,其中泵限定最大泵排量,第二泵级定义泵的最小位移。 泵被配置成当泵从第一泵级从第一泵级转变到第二泵级时,向管道提供输出质量的燃料,从而导致管道内的燃料的压力脉动。 最大泵排量被设定为由将管道内的压力脉冲维持在预定压力脉冲范围内所需的导管容积的输出质量比的比值定义的值。
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公开(公告)号:US08857162B2
公开(公告)日:2014-10-14
申请号:US13667428
申请日:2012-11-02
Applicant: Caterpillar Inc.
Inventor: Cory Andrew Brown , Joshua Wayne Steffen
CPC classification number: F01N3/0205 , F01N2410/06 , F02M43/00 , Y02T10/20
Abstract: The present disclosure is directed to a system for reducing the cold start time for a vehicle with a twin fuel engine. The system has an exhaust system, from which exhaust is discharged and collected on an exhaust manifold. A heat exchanger is positioned within the exhaust system, with coolant flow passages in thermal communication with the engine, and the heat exchanger. A control valve is coupled to a first flow path operable to direct the exhaust through the heat exchanger across the first flow path and a second flow path in selective amounts.
Abstract translation: 本公开涉及一种用于减少具有双燃料发动机的车辆的冷启动时间的系统。 该系统具有排气系统,从排气系统排出废气并将其收集在排气歧管上。 热交换器位于排气系统内,其中冷却剂流动通道与发动机和热交换器热连通。 控制阀联接到第一流动路径,该第一流动路径可操作以引导穿过第一流动路径的排气通过热交换器和选择量的第二流动路径。
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