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    Dual Fuel Injector And Fuel System
    11.
    发明申请
    Dual Fuel Injector And Fuel System 有权
    双燃油喷射器和燃油系统

    公开(公告)号：US20130319373A1

    公开(公告)日：2013-12-05

    申请号：US13905285

    申请日：2013-05-30

    Applicant: Caterpillar, Inc.

    Inventor： Cory Andrew Brown ,  Dana R. Coldren

    IPC: F02M43/04

    CPC classification number: F02M43/04 ,  F02M21/0209 ,  F02M21/0212 ,  F02M21/0215 ,  F02M21/0218 ,  F02M21/0248 ,  F02M21/0251 ,  F02M21/0254 ,  F02M21/0257 ,  F02M21/026 ,  F02M21/0263 ,  F02M2200/44 ,  Y02T10/36

    Abstract: A dual fuel injector in a dual common rail fuel system includes an injector body defining a liquid fuel supply passage to a liquid fuel nozzle outlet, and a gaseous fuel supply passage to a gaseous fuel nozzle outlet. A liquid fuel needle check is movable within the injector body and has an opening hydraulic surface exposed to a fuel pressure of a liquid fuel common rail. A gaseous fuel needle check is positioned side by side with the liquid fuel needle check and has an opening hydraulic surface exposed to the fuel pressure of the liquid fuel common rail. Sensitivity to differences in gaseous fuel rail pressure and liquid fuel rail pressure is reduced by the design.

    Abstract translation: 双共用燃料燃料系统中的双燃料喷射器包括限定到液体燃料喷嘴出口的液体燃料供给通道的喷射器主体和气体燃料喷嘴出口的气体燃料供给通道。 液体燃料针检查可在喷射器主体内移动，并具有暴露于液体燃料共轨的燃料压力的开启液压表面。 气体燃料针检查与液体燃料针检查并排定位，并且具有暴露于液体燃料共轨的燃料压力的开口液压表面。 通过设计可以降低气体燃料轨压力和液体燃料轨压力差异的灵敏度。

    Multi-fuel injection system and injector
    12.
    发明授权
    Multi-fuel injection system and injector 有权

    公开(公告)号：US11773792B1

    公开(公告)日：2023-10-03

    申请号：US18073430

    申请日：2022-12-01

    Applicant: Caterpillar Inc.

    Inventor： Dana R. Coldren ,  Eric L. Schroeder ,  Robert Graumueller ,  Andrew O. Marrack

    IPC: F02D19/06 ,  F02D41/38

    CPC classification number: F02D19/0694 ,  F02D41/38

    Abstract: A multi-fuel injector includes a primary fuel inlet configured to receive a liquid primary fuel, a pilot fuel inlet configured to receive a liquid pilot fuel that is a different fuel than the primary fuel, and a spill valve in fluid communication with the primary fuel inlet. The fuel injector also includes a control valve configured to control a pressure of fluid within a hydraulic control chamber, and an injection valve abutting the hydraulic control chamber, the injection valve being configured to move to an injection position to inject both the primary fuel and the pilot fuel.

    Hydraulic Drive Multi-Element Cryogenic Pump
    15.
    发明申请
    Hydraulic Drive Multi-Element Cryogenic Pump 审中-公开
    液压驱动多元件低温泵

    公开(公告)号：US20160377068A1

    公开(公告)日：2016-12-29

    申请号：US14753585

    申请日：2015-06-29

    Applicant: Caterpillar Inc.

    Inventor： Cory A. Brown ,  Adrienne M. Brasche ,  Sunil J. Bean ,  Shivangini S. Hazari ,  Sana Mahmood ,  Nikhil M. Arya ,  Joshua W. Steffen ,  Daniel R. Baldwin ,  Dana R. Coldren ,  Robert M. Campion ,  Alan R. Stockner

    IPC: F04B15/08 ,  F04B7/02 ,  F04B1/12 ,  F04B1/28 ,  F04B1/16

    CPC classification number: F04B23/02 ,  F04B9/1176 ,  F04B23/023 ,  F04B23/06 ,  F04B37/08 ,  F04B49/065 ,  F04B2015/081 ,  F17C2227/0142

    Abstract: A cryogenic fluid pump includes a plurality of pumping elements, each of the plurality of pumping elements having an actuator portion that is associated with and configured to selectively activate one end of a pushrod in response to a command by an electronic controller, an activation portion associated with an opposite end of the pushrod, and a pumping portion associated with the activation portion. For each of the plurality of pumping elements, the pumping portion is activated for pumping a fluid by the activation portion, which activation portion is activated by the actuator portion. The electronic controller is configured to selectively activate each of the plurality of pumping elements such that a flow of fluid from the cryogenic fluid pump results from continuous activations of the plurality of pumping elements at selected dwell times between activations of successive pumping elements.

    Abstract translation: 低温流体泵包括多个泵送元件，所述多个泵送元件中的每一个具有致动器部分，所述致动器部分响应于电子控制器的命令而相关联并且被配置为选择性地激活推杆的一端，激活部分相关联 其具有推杆的相对端，以及与激活部分相关联的泵送部分。 对于多个泵送元件中的每一个，泵送部分被启动，用于通过致动部分泵送流体，该致动部分由致动器部分激活。 电子控制器被配置为选择性地激活多个泵送元件中的每一个，使得来自低温流体泵的流体流由连续泵送元件的激活之间选定的停留时间的多个泵送元件的连续激活产生。

    Piston Seal and Pump Including Same
    17.
    发明申请
    Piston Seal and Pump Including Same 审中-公开
    活塞密封和泵包括相同

    公开(公告)号：US20160131132A1

    公开(公告)日：2016-05-12

    申请号：US14538269

    申请日：2014-11-11

    Applicant: Caterpillar Inc.

    Inventor： Alan R. Stockner ,  Dana R. Coldren

    IPC: F04B53/14 ,  F16J9/26 ,  F16J9/20 ,  F16J9/06

    CPC classification number: F04B53/143 ,  F04B53/02

    Abstract: A seal for a piston of a positive displacement pump includes an annular seal element, a radially outer surface of the annular seal element defining a longitudinal axis, and an annular energizer disposed between the annular seal element and the longitudinal axis along a radial direction. The annular energizer has a resilience along the radial direction to bias the annular seal element away from the longitudinal axis along the radial direction, the radial direction being perpendicular to the longitudinal axis. The radially outer surface of the annular seal element defines at least one circumferential groove about the annular seal element, and a concavity of the at least one circumferential groove faces away from the longitudinal axis along the radial direction

    Abstract translation: 用于容积式泵的活塞的密封件包括环形密封元件，限定纵向轴线的环形密封元件的径向外表面，以及沿着径向设置在环形密封元件和纵向轴线之间的环形增压器。 环形增压器具有沿着径向方向的弹性，以使环形密封元件沿着径向偏离纵向轴线，径向方向垂直于纵向轴线。 环形密封元件的径向外表面限定围绕环形密封元件的至少一个周向凹槽，并且至少一个周向凹槽的凹部沿径向方向远离纵向轴线

    Single Actuator Fuel Injector for Duel Fuels
    18.
    发明申请
    Single Actuator Fuel Injector for Duel Fuels 审中-公开
    用于决斗燃料的单执行器燃油喷射器

    公开(公告)号：US20160061168A1

    公开(公告)日：2016-03-03

    申请号：US14476344

    申请日：2014-09-03

    Applicant: Caterpillar Inc.

    Inventor： Dana R. Coldren

    IPC: F02M43/04 ,  F02M63/00

    CPC classification number: F02M43/04 ,  F02B7/06 ,  F02B43/00 ,  F02D19/0694 ,  F02M61/042 ,  F02M61/1806 ,  F02M63/0078 ,  Y02T10/32 ,  Y02T10/36

    Abstract: A fuel injector concurrently injects a liquid fuel and a gaseous fuel into a combustion chamber of an internal combustion engine. An interior wall of an injector body defines a control chamber and an injection chamber. A needle valve is disposed within the body and has a control surface fluidly communicating with the control chamber. A liquid fuel inlet fluidly communicates with the control chamber and a gaseous fuel inlet fluidly communicates with the injection chamber. A delivery passage is defined by at least one of the needle valve and the interior wall and configured to place the control chamber in fluid communication with the injection chamber to permit flow of liquid fuel therebetween.

    Abstract translation: 燃料喷射器同时将液体燃料和气体燃料喷射到内燃机的燃烧室中。 喷射器主体的内壁限定了控制室和喷射室。 针阀设置在主体内并具有与控制室流体连通的控制表面。 液体燃料入口与控制室流体连通，气态燃料入口与注射室流体连通。 输送通道由针阀和内壁中的至少一个限定，并且构造成使控制室与注射室流体连通以允许液体燃料在其间流动。

    FLOW LIMITING SYSTEM
    19.
    发明申请
    FLOW LIMITING SYSTEM 审中-公开
    流量限制系统

    公开(公告)号：US20140352664A1

    公开(公告)日：2014-12-04

    申请号：US14460623

    申请日：2014-08-15

    Applicant: Caterpillar Inc.

    Inventor： Dana R. Coldren ,  Dennis H. Gibson ,  Sana Mahmood ,  Sunil J. Bean

    IPC: F02D19/06

    CPC classification number: F02D19/0678 ,  F02D19/0623 ,  F02D19/0647 ,  F02D19/0694 ,  F02D19/105 ,  Y02T10/36

    Abstract: The present disclosure is related to a flow limiting system for a dual fuel engine is disclosed. The flow limiting system includes a first valve configured to regulate a flow of a liquid fuel therethrough based on a pressure difference across the first valve. The flow limiting system further includes a second valve configured to regulate a flow of a gaseous fuel therethrough based on a pressure difference across the second valve. The second valve includes a valve body movably provided within a valve chamber. The valve body includes a control orifice extending therethrough. The valve body also includes grooves defined on an outer surface thereof.

    Abstract translation: 本公开涉及一种用于双燃料发动机的流量限制系统。 流量限制系统包括第一阀，其构造成基于跨越第一阀的压力差来调节液体燃料流过其中的流动。 流量限制系统还包括第二阀，其构造成基于穿过第二阀的压差来调节气体燃料的流动。 第二阀包括可移动地设置在阀室内的阀体。 阀体包括延伸穿过其中的控制孔。 阀体还包括限定在其外表面上的凹槽。

    In-Cylinder Dynamic Gas Blending Fuel Injector And Dual Fuel Engine
    20.
    发明申请
    In-Cylinder Dynamic Gas Blending Fuel Injector And Dual Fuel Engine 有权
    气缸动态气体混合燃料喷射器和双燃料发动机

    公开(公告)号：US20140196687A1

    公开(公告)日：2014-07-17

    申请号：US13741851

    申请日：2013-01-15

    Applicant: CATERPILLAR, INC.

    Inventor： Dana R. Coldren ,  Cory A. Brown

    IPC: F02D19/06 ,  F02M43/04 ,  F02M47/02 ,  F02D19/08

    CPC classification number: F02D19/0642 ,  F02D19/0694 ,  F02D19/08 ,  F02D19/10 ,  F02M43/04 ,  F02M45/086 ,  F02M47/027 ,  Y02T10/36

    Abstract: A dual fuel engine utilizes a compression ignited pilot injection of liquid diesel fuel to ignite a mixture of gaseous fuel and air in each engine cylinder. The gaseous fuel is injected at a relatively low pressure directly into the engine cylinder from a fuel injector. The liquid diesel fuel is injected directly into the engine cylinder from the same fuel injector. In-cylinder dynamic gas blending during the compression stroke can reduce potential hydrocarbon slip that could occur when unburned fuel resides in crevice volumes within the engine cylinder.

    Abstract translation: 双燃料发动机利用液化柴油燃料的压缩点火引燃喷射来点燃每个发动机气缸中的气体燃料和空气的混合物。 气体燃料以相对低的压力从燃料喷射器直接喷射到发动机气缸中。 液体柴油由相同的燃料喷射器直接注入发动机气缸。 在压缩冲程期间的缸内动态气体混合可以减少当未燃燃料位于发动机气缸内的缝隙体积时可能发生的潜在碳氢化合物滑移。

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