Fuel injector having recessed check top
    11.
    发明申请
    Fuel injector having recessed check top 有权
    燃油喷射器具有凹入的检查顶

    公开(公告)号:US20070199544A1

    公开(公告)日:2007-08-30

    申请号:US11363259

    申请日:2006-02-28

    IPC分类号: F02M57/02 F02M59/46

    CPC分类号: F02M47/027 F02M63/0045

    摘要: A fuel injector for a machine is disclosed. The fuel injector has a nozzle member with a first end and a second end. The first end of the fuel injector has at least one orifice. The fuel injector also has a control chamber located at the second end of the nozzle member with an end wall portion approximately orthogonal to an axial direction of the nozzle member. The fuel injector further has a port disposed in the end wall portion of the control chamber and at least one passageway in fluid communication with the control chamber via the port. The fuel injector additionally has a needle valve element with a tip end and a base end. The tip end is configured to selectively block fuel flow through the at least one orifice. The base end has a recess configured to cap off the port.

    摘要翻译: 公开了一种用于机器的燃料喷射器。 燃料喷射器具有具有第一端和第二端的喷嘴构件。 燃料喷射器的第一端具有至少一个孔口。 燃料喷射器还具有位于喷嘴构件的第二端处的控制室,其端壁部分大致垂直于喷嘴构件的轴向。 燃料喷射器还具有设置在控制室的端壁部分中的端口和经由端口与控制室流体连通的至少一个通道。 燃料喷射器还具有具有尖端和基端的针阀元件。 尖端构造成选择性地阻挡通过至少一个孔的燃料流。 基端具有用于将端口盖住的凹部。

    Directly controlled fuel injector with pilot plus main injection sequence capability

    公开(公告)号:US06910462B2

    公开(公告)日:2005-06-28

    申请号:US10919200

    申请日:2004-08-16

    摘要: In one class of fuel injection systems, the individual fuel injectors cycle between high and low pressure during and between injection sequences in a given engine cycle. The fuel injectors may be hydraulically actuated, mechanically actuated, and possibly include common rail injectors equipped with an admission valve that enable the fuel injectors to cycle between high and low pressures. Many of these fuel injection systems also include a directly controlled nozzle valve that can apply or relieve pressure on a closing hydraulic surface associated with the nozzle valve. The nozzle valve is typically spring-biased and therefore has a pre-defined valve opening pressure that defines at what fuel pressure the nozzle valve will open when pressure is relieved on its closing hydraulic surface. While these fuel injection systems can produce a wide variety of rate shapes and injection sequences, generally, an injection sequence of particular interest is one that includes a relatively small volume pilot injection followed quickly in time by a relatively large volume main injection. In order to make the accuracy of the pilot injection more consistent, the nozzle valve is held closed while fuel pressure in the fuel injector builds and surpasses the valve opening pressure of the nozzle valve. This strategy helps to alleviate sensitivity of the pilot injection volume to inherent variability factors, such as geometrical tolerances, within and between fuel injectors.

    Control strategy using variable valve actuation to reduce particulate emission and improve driveability during transient operation of a turbocharged diesel engine
    13.
    发明授权
    Control strategy using variable valve actuation to reduce particulate emission and improve driveability during transient operation of a turbocharged diesel engine 有权
    使用可变气门致动以减少颗粒物排放并提高涡轮增压柴油发动机瞬态运行期间的驾驶性能的控制策略

    公开(公告)号:US06658845B1

    公开(公告)日:2003-12-09

    申请号:US10223853

    申请日:2002-08-20

    申请人: Jinhui Sun Xinqun Gui

    发明人: Jinhui Sun Xinqun Gui

    IPC分类号: F02D2300

    摘要: An internal combustion engine (10) has an intake system (12) that includes a turbocharger (32). An engine control (30) processes data for controlling the opening of the exhaust valves (24) and for controlling fueling of the engine in relation to the engine operating cycle. In response to initiation of engine acceleration, the control increasingly retards exhaust valve opening in relation to the engine operating cycle to cause the turbocharger to increase pressure in the intake manifold (14) and increases engine fueling in relation to the increased pressure in the intake manifold.

    摘要翻译: 内燃机(10)具有包括涡轮增压器(32)的进气系统(12)。 发动机控制装置(30)处理用于控制排气门(24)打开的数据和用于控制发动机相对于发动机运转循环的燃料供给。 响应于发动机加速的启动,控制相对于发动机操作循环越来越多地阻止排气门开口,以使涡轮增压器增加进气歧管(14)中的压力,并相对于进气歧管中增加的压力增加发动机加油 。

    Control strategy for counteracting incipient turbocharger surging using a variable valve actuation mechanism for through-cylinder bleed
    14.
    发明授权
    Control strategy for counteracting incipient turbocharger surging using a variable valve actuation mechanism for through-cylinder bleed 有权
    使用可变阀致动机构抵消初始涡轮增压器浪涌的控制策略,用于通过气缸流失

    公开(公告)号:US06647723B1

    公开(公告)日:2003-11-18

    申请号:US10224132

    申请日:2002-08-20

    申请人: Jinhui Sun Xinqun Gui

    发明人: Jinhui Sun Xinqun Gui

    IPC分类号: F02D2300

    摘要: A turbocharger (32) creates intake manifold boost for a diesel engine (10) that has a variable valve actuation mechanism. At times, exhaust valve opening (EVO) is increasingly retarded in relation to the engine operating cycle (56) to cause the turbocharger to increase boost, engine fueling is also increased in relation to the increased boost (58), and in response to any incipient surging of the compressor resulting from such increasingly retarded exhaust valve opening and such increased engine fueling, compressed charge air is bled from the intake manifold through the combustion chambers to the exhaust system (62) to counter the incipient surging and thereby avoid any significant turbocharger surge. The bleeding is accomplished by keeping the exhaust valves (24) slightly open beyond the time that they would otherwise close.

    摘要翻译: 涡轮增压器(32)为具有可变气门致动机构的柴油发动机(10)产生进气歧管增压。 有时,相对于发动机运转循环(56),排气门开度(EVO)越来越多地延迟,以使涡轮增压器增加增压,发动机加油也相对于增加的升压(58)而增加,并且响应任何 由于这种日益延迟的排气门开启引起的压缩机的初期浪涌和这种增加的发动机燃料供应,压缩的增压空气从进气歧管通过燃烧室排放到排气系统(62)以抵消初始浪涌,从而避免任何显着的涡轮增压器 浪涌。 通过将排气阀(24)稍微打开超过其否则关闭的时间来实现渗出。

    Exhaust aftertreatment system
    15.
    发明授权
    Exhaust aftertreatment system 有权
    排气后处理系统

    公开(公告)号:US08635861B2

    公开(公告)日:2014-01-28

    申请号:US12881261

    申请日:2010-09-14

    IPC分类号: F01N3/10

    摘要: An exhaust aftertreatment system including an exhaust flow area, a first bank of one or more exhaust treatment devices in fluid communication with the exhaust flow area and a second bank of one or more exhaust treatment devices in fluid communication with the exhaust flow area. The first bank may be arranged in parallel with the second bank and inlet of the first bank is configured to provide greater flow resistance to the exhaust than the inlet of the second bank.

    摘要翻译: 排气后处理系统,包括排气区域,与排气流动区域流体连通的一个或多个排气处理装置的第一组和与排气流动区域流体连通的一个或多个废气处理装置的第二组。 第一组可以与第二组平行布置,并且第一组的入口构造成比第二组的入口提供比排气更大的流动阻力。

    SCR reductant mixer
    16.
    发明授权
    SCR reductant mixer 有权
    SCR还原剂混合器

    公开(公告)号:US08359832B2

    公开(公告)日:2013-01-29

    申请号:US12642932

    申请日:2009-12-21

    申请人: Yong Yi Jinhui Sun

    发明人: Yong Yi Jinhui Sun

    IPC分类号: F01N3/00

    摘要: An engine exhaust aftertreatment system including a mixer disposed in the exhaust stream. The mixer includes a mesh section having a mesh of wires and may include a baffle section having a deflector that redirects a direction of flow of the exhaust stream. The mesh section may not extend across an entire width of an exhaust conduit containing the exhaust stream. The mesh section may also be sized and located to intersect the reductant introduced by the injector.

    摘要翻译: 一种发动机排气后处理系统,包括设置在排气流中的混合器。 混合器包括具有丝网的网状部分,并且可以包括具有偏转器的挡板部分,该偏转器重新定向排出流的流动方向。 网状部分可以不延伸穿过包含排气流的排气导管的整个宽度。 网格部分也可以被定尺寸和定位成与由喷射器引入的还原剂相交。

    Exhaust Aftertreatment System
    17.
    发明申请
    Exhaust Aftertreatment System 有权
    排气后处理系统

    公开(公告)号:US20110146236A1

    公开(公告)日:2011-06-23

    申请号:US12881261

    申请日:2010-09-14

    IPC分类号: F01N3/00 F01N3/10

    摘要: An exhaust aftertreatment system including an exhaust flow area, a first bank of one or more exhaust treatment devices in fluid communication with the exhaust flow area and a second bank of one or more exhaust treatment devices in fluid communication with the exhaust flow area. The first bank may be arranged in parallel with the second bank and inlet of the first bank is configured to provide greater flow resistance to the exhaust than the inlet of the second bank

    摘要翻译: 排气后处理系统,包括排气区域,与排气流动区域流体连通的一个或多个排气处理装置的第一组和与排气流动区域流体连通的一个或多个废气处理装置的第二组。 第一组可以与第二组平行布置,并且第一组的入口被配置成比第二组的入口提供比排气更大的流动阻力

    SCR REDUCTANT DEPOSIT REMOVAL
    18.
    发明申请
    SCR REDUCTANT DEPOSIT REMOVAL 审中-公开
    SCR减少沉积物去除

    公开(公告)号:US20110030343A1

    公开(公告)日:2011-02-10

    申请号:US12536891

    申请日:2009-08-06

    IPC分类号: F01N3/20 F01N3/10

    摘要: An engine exhaust aftertreatment system including a selective catalytic reduction (SCR) system. The SCR system includes a reductant injection system configured to introduce a reductant into a exhaust stream of a engine, a SCR catalysts configured to reduce NOx in the presence of a reductant, and a SCR monitoring system configured to determine temperatures associated with the SCR system. The SCR system also includes a heat source configured to raise the temperature of the exhaust stream and a controller configured to operate the heat source to reach exhaust stream temperatures in the SCR system of at least about 400 degrees Celsius based on the temperature associated with the SCR system.

    摘要翻译: 一种包括选择性催化还原(SCR)系统的发动机排气后处理系统。 SCR系统包括还原剂注入系统,其被配置为将还原剂引入发动机的排气流中,SCR催化剂被配置为在还原剂存在下还原NOx;以及SCR监测系统,其被配置为确定与SCR系统相关的温度。 SCR系统还包括被配置为提高排气流的温度的热源和配置成基于与SCR相关联的温度来操作热源以达到至少约400摄氏度的SCR系统中的排气流温度的控制器 系统。

    Fuel system having variable injection pressure
    20.
    发明授权
    Fuel system having variable injection pressure 失效
    具有可变注射压力的燃油系统

    公开(公告)号:US07588012B2

    公开(公告)日:2009-09-15

    申请号:US11269704

    申请日:2005-11-09

    IPC分类号: F02M37/04

    摘要: A fuel injector for a work machine is disclosed. The fuel injector has nozzle member having at least one orifice and a needle valve element having a tip end. The needle valve element is axially movable to selectively allow and block fuel flow through the at least one orifice with the tip end. The fuel injector also has at least one supply passageway in communication with the tip end of the needle valve and a variable restrictive device disposed within the at least one supply passageway.

    摘要翻译: 公开了一种用于作业机械的燃料喷射器。 燃料喷射器具有喷嘴构件,其具有至少一个孔口和具有尖端的针阀元件。 针阀元件可轴向移动以选择性地允许和阻止通过具有尖端的至少一个孔口的燃料流动。 燃料喷射器还具有与针阀的前端连通的至少一个供给通道和设置在至少一个供给通道内的可变限制装置。