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    Port injection system for gaseous fuels
    11.
    发明授权
    Port injection system for gaseous fuels 有权

    公开(公告)号：US09797342B2

    公开(公告)日：2017-10-24

    申请号：US14525810

    申请日：2014-10-28

    Applicant: CATERPILLAR INC.

    Inventor： Scott F. Shafer ,  Dennis Henderson Gibson ,  Lifeng Wang ,  Alan Ray Stockner

    IPC: F02M21/02 ,  F02M51/06

    CPC classification number: F02M21/0233 ,  F02M21/0215 ,  F02M21/0242 ,  F02M21/0278 ,  Y02T10/32

    Abstract: A port injection system for gaseous fuels may include an injector body defining a hydraulic fluid inlet chamber, a hydraulic fluid exit passageway, a hydraulic fluid actuation passageway, a check valve inlet passageway fluidly connected with the hydraulic fluid actuation passageway, a valve chamber, and a gaseous fuel inlet chamber. An electrical solenoid actuator may be mounted to the injector body, with the electrical solenoid actuator including a movable armature, and a poppet valve connected to the movable armature and disposed within the valve chamber. The poppet valve may be movable between a pressurized hydraulic fluid flow blocking position and a pressurized hydraulic fluid flow passing position. A check valve may be disposed within the check valve inlet passageway. A gas admission valve may be disposed at least partially within the gaseous fuel inlet chamber and in contact with the check valve such that movement of the check valve by hydraulic fluid entering the check valve inlet passageway results in actuation of the gas admission valve away from a normally closed position closing off the gaseous fuel inlet chamber to a fuel injection position wherein gaseous fuel is allowed to flow from the gaseous fuel inlet chamber into an intake manifold or intake port of an engine on which the injector body is mounted.

    Fuel Injector Device and Method
    14.
    发明申请
    Fuel Injector Device and Method 审中-公开
    燃油喷射装置及方法

    公开(公告)号：US20160290302A1

    公开(公告)日：2016-10-06

    申请号：US14679225

    申请日：2015-04-06

    Applicant: Caterpillar Inc.

    Inventor： Scott F. Shafer ,  David E. Hackett ,  Craig Habeger

    IPC: F02M61/18 ,  B29C67/00 ,  G05B19/4099 ,  F02B1/12

    CPC classification number: G05B19/4099 ,  B33Y10/00 ,  B33Y80/00 ,  F02M47/027 ,  F02M61/168 ,  F02M2200/40 ,  F02M2200/8069

    Abstract: A fuel injector may include a nozzle assembly and a body. The body may have a fuel inlet, a nozzle supply passage fluidly coupled to the nozzle assembly, and an internal surface defining a chamber within the body. The fuel inlet may be fluidly coupled to the nozzle supply passage via the chamber. The fuel inlet defines an inlet dimension and the chamber defines a chamber dimension, the chamber dimension being larger than the inlet dimension.

    Abstract translation: 燃料喷射器可以包括喷嘴组件和主体。 主体可以具有燃料入口，流体地联接到喷嘴组件的喷嘴供给通道以及限定主体内的室的内表面。 燃料入口可以经由腔室流体地联接到喷嘴供应通道。 燃料入口限定入口尺寸，腔室限定腔室尺寸，腔室尺寸大于入口尺寸。

    Fluid conditioning module
    16.
    发明授权
    Fluid conditioning module 有权

    公开(公告)号：US10208727B2

    公开(公告)日：2019-02-19

    申请号：US14980318

    申请日：2015-12-28

    Applicant: Caterpillar Inc.

    Inventor： Andrew O. Marrack ,  Scott F. Shafer ,  Martin A. Lehman ,  Kenneth C. Adams

    IPC: F02M37/00 ,  F02M37/18 ,  F02M63/02 ,  F02M37/22 ,  F04D13/12 ,  F04D13/14 ,  F04D15/00 ,  F04B23/10 ,  F04B23/14 ,  F04C11/00 ,  F04C14/24

    Abstract: A fluid conditioning module having a fluid inlet and a fluid outlet is provided. The fluid conditioning module includes a first pump element, a second pump element, a pressure regulator, a controller, and a prime mover to impart rotational motion in the first and second pump elements. A first pump inlet is in fluid communication with the fluid inlet. A filter inlet is in fluid communication with a first pump outlet and a second pump outlet, and a filter outlet is in fluid communication with the fluid outlet. A pressure regulator inlet and a pressure regulator outlet are in fluid communication with the filter outlet and a recirculation conduit, respectively. The control valve has a first position and a second position, which allows fluid flow through the recirculation conduit. The controller adjusts operation of one or more of the prime mover and the control valve based upon a predetermined parameter.

    Fluid injector supply system and method for operating same
    17.
    发明授权
    Fluid injector supply system and method for operating same 有权

    公开(公告)号：US10184436B2

    公开(公告)日：2019-01-22

    申请号：US14802162

    申请日：2015-07-17

    Applicant: Caterpillar Inc.

    Inventor： Scott F. Shafer ,  Martin Lehman ,  Lifeng Wang ,  David E. Hackett ,  Taylor Tang ,  Andrew Marrack ,  Dennis H. Gibson

    IPC: F02M37/08 ,  F02M37/00 ,  F02M63/02 ,  F02D41/30 ,  F02D41/38

    Abstract: A fluid injection system includes a fluid injector assembly; a fluid conditioning module having an outlet port that is fluidly coupled to an inlet port of the fluid injector assembly; an injector assembly outlet conduit fluidly coupled to an outlet port of the fluid injector assembly and disposed downstream of the fluid injector assembly, the injector assembly outlet conduit defining a pressure measurement port and a flow-restricting orifice, the pressure measurement port being disposed upstream of the flow-restricting orifice along the direction of fluid flow through the fluid injector assembly; a pressure sensor fluidly coupled to the pressure measurement port; and a controller operatively coupled to the fluid conditioning module and the pressure sensor. The controller is configured to adjust a flowrate of a fluid through the injector assembly inlet conduit based on a pressure signal from the pressure sensor.

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