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    • 21. 发明申请
    • DAMPING ARRANGEMENT FOR A FUEL INJECTOR
    • 燃油喷射器的减震装置
    • US20110041807A1
    • 2011-02-24
    • US12913994
    • 2010-10-28
    • MICHAEL P. COOKE
    • MICHAEL P. COOKE
    • F02M69/04F02M47/02
    • F02M45/086F02M47/02F02M51/0603F02M61/1806F02M61/205F02M2200/304F02M2200/306F02M2200/46
    • A fuel injector for use in an internal combustion engine, the fuel injector comprising: a valve needle which is engageable with a valve needle seat to control fuel injection through an injector outlet; an actuator arrangement arranged to control fuel pressure within a control chamber, a surface associated with the valve needle being exposed to fuel pressure within the control chamber such that fuel pressure variations within the control chamber control movement of the valve needle relative to the valve needle seat; damping means for damping opening movement of the valve member, the damping means comprising a damper chamber and the damping means being arranged such that fuel pressure variations within the damper chamber damp opening movement of the valve member wherein the damping means is arranged such that in use there is a through flow of fuel through the damper chamber.
    • 一种用于内燃机的燃料喷射器,所述燃料喷射器包括:阀针,其可与阀针座接合以控制通过喷射器出口的燃料喷射; 致动器装置,布置成控制控制室内的燃料压力,与阀针相关联的表面暴露于控制室内的燃料压力,使得控制室内的燃料压力变化控制阀针相对于阀针座的运动 ; 阻尼装置,用于阻止阀构件的开启运动,阻尼装置包括阻尼室,并且阻尼装置被布置成使得阻尼室内的燃料压力变化阻止阀构件的打开运动,其中阻尼装置设置成使用 存在通过阻尼室的燃料通过流动。
    • 22. 发明授权
    • Injection nozzle
    • 喷嘴
    • US07871021B2
    • 2011-01-18
    • US11484504
    • 2006-07-11
    • Michael P. Cooke
    • Michael P. Cooke
    • F02M63/00
    • F02M51/0603F02M45/086F02M61/18F02M61/1813F02M61/182F02M61/188F02M2200/46
    • The invention relates to a fuel injection valve for internal combustion engines, comprising a valve body (1), with a drilling (3) embodied therein and defined at the combustion chamber end thereof by a conical valve seat (18) from which at least one injection opening (20) leads. A hollow valve needle (8) is arranged in the drilling (3) such as to be displaced longitudinally, comprising a valve sealing surface (35) at the end thereof facing the valve seat (18). A first sealing region (31; 34) and a second sealing region (32; 46; 48) are embodied on the valve sealing surface (35), whereby, on contact of the hollow valve needle (8) on the valve seat (18), the first sealing region (31; 34) provides a seal upstream of the at least one injection opening (20) and the second sealing region (32; 46; 48) downstream thereof.
    • 本发明涉及一种用于内燃机的燃料喷射阀,包括阀体(1),其具有实施在其中的钻孔(3),并且在其燃烧室端部处由锥形阀座(18)限定,至少一个 注射开口(20)引线。 中空阀针(8)布置在钻孔(3)中以便纵向移动,包括在其面向阀座(18)的端部处的阀密封表面(35)。 第一密封区域(31; 34)和第二密封区域(32; 46; 48)被实施在阀密封表面(35)上,由此在中空阀针(8)接触阀座(18) ),所述第一密封区域(31; 34)在所述至少一个注射开口(20)的上游和所述第二密封区域(32; 46; 48)的下游提供密封。
    • 26. 发明授权
    • Fuel injector and operating method therefor
    • 燃油喷射器及其操作方法
    • US08544764B2
    • 2013-10-01
    • US12357634
    • 2009-01-22
    • Michael Peter Cooke
    • Michael Peter Cooke
    • F02D1/06
    • F02D41/2096F02D2041/2051F02D2041/2058F02M51/0603F02M2200/21F02M2200/704F02M2200/705
    • A method of operating a fuel injector having a piezoelectric actuator for controlling movement of an injector valve needle comprises: (a) prior to an initial fuel injection event, reducing the voltage across the actuator at an initial rate so as to de-energize the actuator; (b) increasing the voltage across the actuator at a first rate in order to initiate an initial fuel injection event of a first fuel injection sequence; and (c) reducing the voltage across the actuator at a second rate in order to terminate the initial fuel injection event. The method may further comprise the step of: (d) increasing the voltage across the actuator at a third rate, which is lower than the first rate, so as to de-energize the actuator but without initiating an injection event, once the initial fuel injection event has terminated and before a subsequent fuel injection event is initiated. The method can be employed particularly to improve actuator lifespan, operating efficiency and/or performance in an energize to inject fuel injector.
    • 一种操作具有用于控制喷射器阀针的运动的压电致动器的燃料喷射器的方法包括:(a)在初始燃料喷射事件之前,以初始速率降低致动器两端的电压,以使致动器 ; (b)以第一速率增加致动器两端的电压,以便启动第一燃料喷射序列的初始燃料喷射事件; 和(c)以第二速率降低致动器两端的电压,以终止初始燃料喷射事件。 该方法还可以包括以下步骤:(d)以比第一速率低的第三速率增加致动器两端的电压,以便一旦初始燃料就启动致动器而不启动喷射事件 注入事件已经终止,并且在随后的燃料喷射事件开始之前。 该方法可以特别用于在激励喷射燃料喷射器的情况下提高致动器寿命,操作效率和/或性能。
    • 27. 发明授权
    • Fuel injector
    • 喷油器
    • US08490888B2
    • 2013-07-23
    • US12937283
    • 2009-03-30
    • Godfrey GreevesSimon David Tullis
    • Godfrey GreevesSimon David Tullis
    • F02M61/10F02M61/04F02M61/18F02M61/00
    • F02M45/086F02M61/1813F02M61/182F02M2200/46
    • A fuel injector for delivering fuel to a combustion chamber having a chamber ceiling, the fuel injector having a primary axis and able to control fuel delivery through a first outlet opening or together through both the first outlet opening and a second outlet opening. The first and second outlet openings are oriented such that, in use, when fuel delivery is permitted through only the first outlet opening, a first spray formation reaches a first target distance below the chamber ceiling at a radial distance from the primary axis. When fuel delivery is permitted through both openings together, respective first and second spray formations merge externally of the injector so as to give rise to a combined spray formation reaching second target distance below the chamber ceiling at the radial distance from the primary nozzle axis, wherein the second target distance is larger than the first target distance.
    • 一种用于将燃料输送到具有室顶部的燃烧室的燃料喷射器,所述燃料喷射器具有主轴线并且能够控制通过第一出口开口的燃料输送或者通过第一出口开口和第二出口开口一起。 第一和第二出口开口被定向成使得在使用中,当仅通过第一出口开口允许燃料输送时,第一喷射结构在与主轴线径向距离处达到室顶部下方的第一目标距离。 当允许通过两个开口一起燃料输送时,相应的第一和第二喷射结构在喷射器的外部合并,以便在距离主喷嘴轴线的径向距离处产生达到腔室顶部下方第二目标距离的组合喷射形成,其中 第二目标距离大于第一目标距离。
    • 29. 发明授权
    • Detection of faults in an injector arrangement
    • 检测喷油器装置中的故障
    • US08193816B2
    • 2012-06-05
    • US12291516
    • 2008-11-07
    • Louisa J. PerrymanMartin A. P. Sykes
    • Louisa J. PerrymanMartin A. P. Sykes
    • G01R31/08G01R31/02F02M51/00
    • F02D41/2096F02D41/22
    • A method and apparatus for detecting faults in an injector arrangement is described. The injector arrangement comprises a plurality of piezoelectric injectors that are located in parallel branches of an injector bank circuit of an injector drive circuit. Each branch of the injector bank circuit comprises a high side isolation switch. The high side isolation switches are each operable to enable an associated piezoelectric injector in the injector bank circuit when closed, and disable the associated piezoelectric injector in the injector bank circuit when open. The fault detection method comprises the steps of operating the high side isolation switches so as to enable one of the piezoelectric injectors and disable the other piezoelectric injector(s), and performing diagnostics to detect the presence or absence of faults on the enabled piezoelectric injector.
    • 描述了一种用于检测喷射装置中的故障的方法和装置。 喷射器装置包括位于喷射器驱动电路的喷射器组电路的平行分支中的多个压电喷射器。 注射器组电路的每个分支包括高侧隔离开关。 高侧隔离开关各自可操作以使得在关闭时能够使注入器组电路中相关联的压电注入器处于关闭状态,并且当打开时禁用注入器组电路中的相关压电注射器。 该故障检测方法包括以下步骤:操作高侧隔离开关,以便能够使一个压电喷射器和其它压电喷射器中的一个,并执行诊断以检测启用的压电喷射器上是否存在故障。
    • 30. 发明申请
    • STRESS RELIEF IN PRESSURIZED FLUID FLOW SYSTEM
    • 加压流体系统中的应力消除
    • US20110297256A1
    • 2011-12-08
    • US13115207
    • 2011-05-25
    • SYLVAIN ROQUES
    • SYLVAIN ROQUES
    • F15B13/00B23B49/00B23B35/00
    • F02M61/168C21D7/10C21D9/0068F02M2200/8053Y10T137/8593Y10T408/03Y10T408/21
    • A method of reducing tensile stress within a drilled element 100 at an intersection 130 between a primary bore 110 and a secondary bore 120 comprises the following steps. A first face of the drilled element 100 is loaded with a first loading element. A compressive hoop stress is generated where the first face of the drilled element 100 is loaded by the first loading element, and the intersection 130 is sufficiently close to the first face of the drilled element 100 such that the compressive hoop stress counteracts tensile stress in the drilled element 100 at the intersection 130. A suitable drilled element 100 and fluid flow systems, such as a fuel injector, including such a drilled element 100 are also described.
    • 在主孔110和次级孔120之间的交叉点130处减小钻孔元件100内的拉伸应力的方法包括以下步骤。 钻孔元件100的第一面被加载有第一加载元件。 产生压缩环向应力,其中钻孔元件100的第一面由第一加载元件加载,并且相交部分130足够接近钻孔元件100的第一面,使得压缩环应力抵消在 还描述了相交处130处的钻孔元件100.还描述了合适的钻孔元件100和流体流动系统,例如包括这种钻孔元件100的燃料喷射器。