Debris diverter shield for fuel injector

    公开(公告)号:US09644589B2

    公开(公告)日:2017-05-09

    申请号:US14084840

    申请日:2013-11-20

    发明人: Mark S. Cavanagh

    摘要: A tubular debris shield and diverter mounted in a high pressure flow passage within a fuel injector, provide the dual functions of passing the main flow of high pressure fuel with large debris particles to relatively large discharge openings, such as the injector spray holes, while allowing some high pressure fuel to flow through a multitude of very small transverse holes to a sensitive hydraulic component, such an injector control valve circuit. In one embodiment, the tube has a wall thickness in the range of about 0.1 to 0.5 mm at least about 2000 holes with a diameter in the range of about 20 to 30 microns.

    Fuel Injector
    4.
    发明申请
    Fuel Injector 审中-公开

    公开(公告)号:US20170089312A1

    公开(公告)日:2017-03-30

    申请号:US15310484

    申请日:2015-04-21

    IPC分类号: F02M61/12 F02M61/16 F02M61/20

    摘要: A nozzle assembly of a fuel injector extends along a main axis and includes a nozzle body provided with an inner space divided in upstream chamber and downstream chamber and also with, a valve needle including a main elongated shaft slidably guided in said inner space and extending through-out both upstream and downstream chambers. The nozzle body and the valve needle cooperate to define throttle fluid communication means between upstream and downstream chambers inducing, in use, a pressure drop when fuel flows through. The nozzle assembly is further provided with a tubular sleeve arranged between the upstream chamber and the downstream chamber in abutment against a face of the body and being radially self-centred guided by a cylindrical face of the needle, the throttle means being arranged in said sleeve.

    Injector Inlet Fuel Screen
    5.
    发明申请
    Injector Inlet Fuel Screen 审中-公开
    喷油器进油口油门

    公开(公告)号:US20160220926A1

    公开(公告)日:2016-08-04

    申请号:US14610269

    申请日:2015-01-30

    申请人: Caterpillar Inc.

    发明人: Diego Caceres

    IPC分类号: B01D29/11 B01D35/00

    摘要: An injector inlet fuel screen may include a first annular ring, a second annular ring, and a plurality of support ribs extending axially between and connecting the annular rings. The plurality of support ribs may be circumferentially spaced about the annular rings, and each adjacent pair of support ribs and corresponding portions of the annular rings may define a filter window. At least one of the support ribs may have a generally rectangular cross-section and at least one of the support ribs may have a generally parallelogram-shaped cross-section with no right angles. The fuel screen may further include a plurality of wire mesh panels, with each wire mesh panel overlaying a corresponding one of the filter windows. The injector inlet fuel screen may be installed on a fuel injector case have four inlet ports, with the screen having six support ribs and defining six filter windows.

    摘要翻译: 喷射器入口燃料屏幕可以包括第一环形环,第二环形环和在环形环之间轴向延伸并连接环形环的多个支撑肋。 多个支撑肋可以围绕环形圈周向间隔开,并且每个相邻的一对支撑肋和环形环的相应部分可以限定过滤器窗口。 支撑肋中的至少一个可以具有大致矩形的横截面,并且支撑肋中的至少一个可以具有没有直角的大致平行四边形的横截面。 燃料屏幕还可以包括多个金属丝网面板,每个金属丝网面板覆盖对应的一个过滤窗口。 喷射器入口燃料屏幕可以安装在具有四个入口端口的燃料喷射器壳体上,其中屏幕具有六个支撑肋并限定六个过滤器窗口。

    FLOW LIMITER AND FILTER ASSEMBLY FOR A FUEL SYSTEM OF AN ENGINE
    6.
    发明申请
    FLOW LIMITER AND FILTER ASSEMBLY FOR A FUEL SYSTEM OF AN ENGINE 审中-公开
    用于发动机燃料系统的流量限制器和过滤器组件

    公开(公告)号:US20150345448A1

    公开(公告)日:2015-12-03

    申请号:US14290375

    申请日:2014-05-29

    申请人: Caterpillar Inc.

    IPC分类号: F02M59/44 F02M61/16 F02M55/02

    摘要: A flow limiter and filter assembly for a fuel system of an engine includes a flow limiting valve attached to a filter element. The filter element has a large area inlet and a screen of small area outlets. Each of a plurality of quills for the fuel system includes a flow limiter and filter assembly positioned in a quill passage in contact with a limiter seat of a quill body, and the filter element is out of contact with the quill body.

    摘要翻译: 用于发动机燃料系统的流量限制器和过滤器组件包括附接到过滤元件的限流阀。 过滤元件具有大面积的入口和小区域出口的屏幕。 用于燃料系统的多个套筒中的每一个都包括限流器和过滤器组件,所述流动限制器和过滤器组件定位在与套管主体的限制器座接触的套筒通道中,并且过滤元件与套筒体脱离接触。

    Fuel system having accumulators and flow limiters
    7.
    发明授权
    Fuel system having accumulators and flow limiters 有权
    燃油系统具有蓄能器和流量限制器

    公开(公告)号:US08622046B2

    公开(公告)日:2014-01-07

    申请号:US12823623

    申请日:2010-06-25

    IPC分类号: F02M63/04

    摘要: A fuel system for an engine is disclosed. The fuel system may have a pump, a plurality of fuel injectors, and a plurality of fuel accumulators. Each of the plurality of fuel accumulators may be disposed at least partially within a different cylinder head of the engine in fluid communication with an associated fuel injector of the plurality of fuel injectors. Each of the plurality of fuel accumulators may also be in fluid communication with adjacent fuel accumulators of the plurality of fuel accumulators. At least one of the plurality of fuel accumulators may also be in fluid communication with the pump. The fuel system may further have a plurality of flow limiters. Each of the plurality of flow limiters may be disposed between an associated fuel accumulator of the plurality of fuel accumulators and an associated fuel injector of the plurality of fuel injectors.

    摘要翻译: 公开了一种用于发动机的燃料系统。 燃料系统可以具有泵,多个燃料喷射器和多个燃料蓄积器。 多个燃料蓄积器中的每一个可以至少部分地布置在与多个燃料喷射器的相关联的燃料喷射器流体连通的发动机的不同气缸盖内。 多个燃料蓄积器中的每一个也可以与多个燃料蓄积器的相邻燃料蓄积器流体连通。 多个燃料蓄积器中的至少一个也可以与泵流体连通。 燃料系统还可以具有多个流量限制器。 多个流量限制器中的每一个可以设置在多个燃料蓄积器的相关联的燃料蓄积器和多个燃料喷射器的相关联的燃料喷射器之间。

    BOUNDARY EDGE FILTER OF A UNIT FUEL INJECTOR
    8.
    发明申请
    BOUNDARY EDGE FILTER OF A UNIT FUEL INJECTOR 有权
    单位燃料喷射器的边界过滤器

    公开(公告)号:US20120104115A1

    公开(公告)日:2012-05-03

    申请号:US12914017

    申请日:2010-10-28

    IPC分类号: F02M61/16

    CPC分类号: F02M61/165 F02M57/025

    摘要: A unit fuel injector (30) has a boundary edge filter. A first endless annular internal space (100) is open to a holes (92) forming a fuel inlet port, a second endless annular internal space (102) that is spaced axially of the first endless annular internal space and through which fuel is supplied to an injection mechanism, and a series of circumferentially spaced apart, axially extending channels (104) through which fuel can pass from the first endless annular internal space to the second endless annular internal space.

    摘要翻译: 单元燃料喷射器(30)具有边界边缘滤波器。 第一环形内部空间(100)对形成燃料入口的孔(92)开放,第二环形环形内部空间(102)与第一环形环形内部空间轴向间隔开,燃料供应到 喷射机构和一系列周向间隔开的轴向延伸的通道(104),燃料可以通过该通道从第一环形内部空间传递到第二环形内部空间。

    Fuel lance and assembly
    10.
    发明授权
    Fuel lance and assembly 有权
    燃油枪和组装

    公开(公告)号:US07958870B2

    公开(公告)日:2011-06-14

    申请号:US12291671

    申请日:2008-11-12

    IPC分类号: F02M61/14 F02M55/02

    摘要: A fuel lance assembly for an engine comprises: a fuel lance to be received in a passage provided in a cylinder head and a connection arrangement comprising an inlet adapter for securing the fuel lance within the passage. The fuel lance comprises a tubular member of constant external diameter, arranged to be received, in use, within the passage and having a first end being shaped for cooperation with a seating surface of a fuel injector of the engine, and a second end being shaped for cooperation with the inlet adapter, and being provided with a bore therethrough to define a fuel flow path between the first end and the second end of the fuel lance. The inlet adapter is provided with an attachment system for engaging a compatible attachment system of the cylinder head, and has a proximal region for receiving a high pressure fuel pipe, and wherein the inlet adapter has a distal region provided with an opening being adapted to receive the second end of the fuel lance. A fuel lance and a fuel supply line arrangement are also provided.

    摘要翻译: 用于发动机的燃料喷枪组件包括:待接收在设置在气缸盖中的通道中的燃料喷枪和包括用于将燃料喷枪固定在通道内的入口适配器的连接装置。 燃料喷枪包括恒定外径的管状构件,其布置成在使用中被容纳在通道内,并且具有成形为与发动机的燃料喷射器的就座表面配合的第一端,并且第二端被成形 用于与入口适配器配合,并且设置有穿过其中的孔以在燃料喷枪的第一端和第二端之间限定燃料流动路径。 入口适配器设置有用于接合气缸盖的相容的附接系统的附接系统,并且具有用于接收高压燃料管的近侧区域,并且其中入口适配器具有设置有适于接收的开口的远侧区域 燃油喷枪的第二端。 还提供燃料喷枪和燃料供应管线装置。