FUEL INJECTOR, NEEDLE SEAL, AND FUEL INJECTOR SYSTEM

    公开(公告)号:US20250052219A1

    公开(公告)日:2025-02-13

    申请号:US18720790

    申请日:2022-12-20

    Applicant: Cummins Inc.

    Abstract: A fuel injector including a flow balanced injector needle seal is provided. The fuel injector includes a needle in a fuel passage of the fuel injector body. The needle moves longitudinally in the fuel passage to selectively stop and start fuel injection from the fuel passage. The fuel injector includes a check valve assembly that maintains pressurized fuel in the fuel passage and permits fuel flow out of the fuel passage in response to a fuel injection event. The needle seal is provided between the check valve assembly and a sleeve that extends around the proximal end of the needle. The needle seal includes multiple inlet orifices for receiving a fuel flow into the needle seal that are positioned relative to one another so that net lateral forces on the needle are effectively offset from one another.

    TWO STAGE VALVE WITH CONICAL SEAT FOR FLOW SHUT-OFF AND SPOOL KNIFE EDGE FOR METERING FLOW CONTROL
    3.
    发明申请
    TWO STAGE VALVE WITH CONICAL SEAT FOR FLOW SHUT-OFF AND SPOOL KNIFE EDGE FOR METERING FLOW CONTROL 有权
    两级阀门,用于流量关闭和旋钮刀片,用于计量流量控制

    公开(公告)号:US20170022952A1

    公开(公告)日:2017-01-26

    申请号:US15047142

    申请日:2016-02-18

    Applicant: CUMMINS INC.

    Abstract: A valve (100) comprises a barrel (104) having a central bore (110), an inlet (112), and an outlet (114, 116), and a spool (120) disposed for motion within the central bore, including a ball tip (128), a metering edge (130), and a bore (132). The spool is moveable between a closed position, wherein the ball tip engages a seat (142) to prevent fluid flow through the inlet and the metering edge is disposed in a lower chamber (148) of the central bore to prevent the fluid flow through the outlet, and an opened position, wherein the tip is spaced apart from the seat to permit fluid flow through the inlet and the spool bore into an upper chamber (154) of the central bore to equalize pressure on the spool, and the metering edge is disposed in a flow path of the outlet to permit fluid flow through the outlet.

    Abstract translation: 阀(100)包括具有中心孔(110),入口(112)和出口(114,116)的筒体(104)和设置成在中心孔内运动的线轴(120),包括 球头(128),计量边缘(130)和孔(132)。 阀芯可在闭合位置之间移动,其中球头接合座(142)以防止流体流过入口,并且计量边缘设置在中心孔的下腔室(148)中,以防止流体流过 出口和打开位置,其中所述尖端与所述座部间隔开​​,以允许流体通过所述入口和所述卷轴孔流入所述中心孔的上室(154)以均衡所述卷轴上的压力,并且所述计量边缘为 设置在出口的流动路径中,以允许流体流过出口。

    Two stage valve with conical seat for flow shut-off and spool knife edge for metering flow control
    5.
    发明授权
    Two stage valve with conical seat for flow shut-off and spool knife edge for metering flow control 有权
    具有锥形座的两级阀,用于流量关闭和阀芯刀刃用于计量流量控制

    公开(公告)号:US09267476B2

    公开(公告)日:2016-02-23

    申请号:US14159723

    申请日:2014-01-21

    Applicant: Cummins Inc.

    Abstract: A valve (100) comprises a barrel (104) having a central bore (110), an inlet (112), and an outlet (114, 116), and a spool (120) disposed for motion within the central bore, including a ball tip (128), a metering edge (130), and a bore (132). The spool is moveable between a closed position, wherein the ball tip engages a seat (142) to prevent fluid flow through the inlet and the metering edge is disposed in a lower chamber (148) of the central bore to prevent the fluid flow through the outlet, and an opened position, wherein the tip is spaced apart from the seat to permit fluid flow through the inlet and the spool bore into an upper chamber (154) of the central bore to equalize pressure on the spool, and the metering edge is disposed in a flow path of the outlet to permit fluid flow through the outlet.

    Abstract translation: 阀(100)包括具有中心孔(110),入口(112)和出口(114,116)的筒体(104)和设置成在中心孔内运动的线轴(120),包括 球头(128),计量边缘(130)和孔(132)。 阀芯可在闭合位置之间移动,其中球头接合座(142)以防止流体流过入口,并且计量边缘设置在中心孔的下腔室(148)中,以防止流体流过 出口和打开位置,其中所述尖端与所述座部间隔开​​,以允许流体通过所述入口和所述卷轴孔流入所述中心孔的上室(154)以均衡所述卷轴上的压力,并且所述计量边缘为 设置在出口的流动路径中,以允许流体流过出口。

    AUTOMATED VEHICLE COMPONENT CLEANING SYSTEM

    公开(公告)号:US20220234169A1

    公开(公告)日:2022-07-28

    申请号:US17611735

    申请日:2020-05-15

    Applicant: Cummins Inc.

    Abstract: A system is provided for performing a cleaning process of a component of a vehicle. The system includes a first cleaning applicator configured to deliver a cleaning agent to a first surface of the component of the vehicle, a second cleaning applicator configured to deliver the cleaning agent to a second surface of the component of the vehicle, a third cleaning applicator configured to deliver the cleaning agent to a third surface of the component of the vehicle, and a control unit configured to instruct each of the first, second, and third cleaning applicators to project the cleaning agent onto the respective surface of the component for a corresponding predetermined period. The first, second, and third applicators are instructed to project the cleaning agent in a predetermined sequence.

    TWO STAGE VALVE WITH CONICAL SEAT FOR FLOW SHUT-OFF AND SPOOL KNIFE EDGE FOR METERING FLOW CONTROL
    8.
    发明申请
    TWO STAGE VALVE WITH CONICAL SEAT FOR FLOW SHUT-OFF AND SPOOL KNIFE EDGE FOR METERING FLOW CONTROL 有权
    两级阀门,用于流量关闭和旋钮刀片,用于计量流量控制

    公开(公告)号:US20150204294A1

    公开(公告)日:2015-07-23

    申请号:US14159723

    申请日:2014-01-21

    Applicant: Cummins Inc.

    Abstract: A valve (100) comprises a barrel (104) having a central bore (110), an inlet (112), and an outlet (114, 116), and a spool (120) disposed for motion within the central bore, including a ball tip (128), a metering edge (130), and a bore (132). The spool is moveable between a closed position, wherein the ball tip engages a seat (142) to prevent fluid flow through the inlet and the metering edge is disposed in a lower chamber (148) of the central bore to prevent the fluid flow through the outlet, and an opened position, wherein the tip is spaced apart from the seat to permit fluid flow through the inlet and the spool bore into an upper chamber (154) of the central bore to equalize pressure on the spool, and the metering edge is disposed in a flow path of the outlet to permit fluid flow through the outlet.

    Abstract translation: 阀(100)包括具有中心孔(110),入口(112)和出口(114,116)的筒体(104)和设置成在中心孔内运动的线轴(120),包括 球头(128),计量边缘(130)和孔(132)。 阀芯可在关闭位置之间移动,其中球头接合座(142)以防止流体流过入口,并且计量边缘设置在中心孔的下腔室(148)中,以防止流体流过 出口和打开位置,其中所述尖端与所述座部间隔开​​,以允许流体通过所述入口和所述卷轴孔流入所述中心孔的上室(154)以均衡所述卷轴上的压力,并且所述计量边缘为 设置在出口的流动路径中,以允许流体流过出口。

    PLASMA ELECTROLYTIC POLISHED DIESEL ENGINE COMPONENTS

    公开(公告)号:US20240376628A1

    公开(公告)日:2024-11-14

    申请号:US18632344

    申请日:2024-04-11

    Applicant: Cummins Inc.

    Abstract: A method and system is provided for reducing surface roughness of a diesel engine component. The method and system may apply a voltage to a plasma electrolyte polishing cell. The plasma electrolyte polishing cell may include a diesel engine component and an aqueous electrolyte solution. The method and system may cause a plasma layer to form around a surface of the diesel engine component as a result of applying the voltage to the plasma electrolyte polishing cell. The method and system may terminate the voltage to the plasma electrolyte polishing cell. The method and system may apply a coating process to the diesel engine component.

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