会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • System for estimating auxiliary-injected fueling quantities
    • 用于估计辅助喷射加油量的系统
    • US06823834B2
    • 2004-11-30
    • US10417829
    • 2003-04-17
    • Donald J. BensonTaner TukenDavid M. CareyJohn T. Carroll, IIIYul J. Tarr
    • Donald J. BensonTaner TukenDavid M. CareyJohn T. Carroll, IIIYul J. Tarr
    • F02B300
    • F02D41/22F02D41/2496F02D41/3809F02D41/40F02D2041/224F02D2041/227F02D2200/0612F02D2200/0616Y02T10/44
    • A system for estimating an auxiliary-injected fuel quantity includes a fuel injector for injecting fuel into an engine, a fuel pump supplying fuel to a fuel collection unit that then supplies fuel to the fuel injector, and a control circuit that generates an auxiliary-injected fuel quantity estimation model by disabling the fuel pump prior to fuel injection, and enabling the fuel pump to resume fuel pumping following fuel injection, by the fuel injector, determines a first pressure in the fuel collection unit after stabilization of the fuel pressure therein following disablement of the fuel pump and prior to the fuel injection, determines a second pressure in the fuel collection unit after the fuel injection and prior to resuming pumping of fuel by the fuel pump, and forms the model as a function of the first and second pressures and an injector on-time for a number of different engine operating conditions.
    • 用于估计辅助喷射燃料量的系统包括用于将燃料喷射到发动机中的燃料喷射器,向向燃料喷射器供应燃料的燃料收集单元供应燃料的燃料泵,以及产生辅助喷射的燃料的控制电路 燃料量估计模型,通过在燃料喷射之前禁用燃料泵,以及使得燃料泵能够通过燃料喷射器在燃料喷射之后恢复燃料泵送,在确定燃料收集单元中的燃料压力之后确定其中的第一压力 并且在燃料喷射之前确定燃料收集单元中的燃料喷射之后的第二压力,并且在由燃料泵重新启动燃料之前确定燃料收集单元中的第二压力,并且作为第一和第二压力的函数形成模型,并且 一个注射器在时间上为许多不同的发动机工作条件。
    • 8. 发明授权
    • Low leakage plunger and barrel assembly for high pressure fluid system
    • 低泄漏柱塞和桶组件用于高压流体系统
    • US5899136A
    • 1999-05-04
    • US769117
    • 1996-12-18
    • Yul J. TarrJohn T. Carroll, IIIDonald J. Benson
    • Yul J. TarrJohn T. Carroll, IIIDonald J. Benson
    • F02M59/44F01B11/02
    • F02M59/44F02M59/442
    • An improved plunger and barrel assembly is provided which includes a plunger reciprocally mounted in a cavity formed in the barrel and a leakage flow reduction device positioned in the cavity for reducing fluid leakage flow around the plunger thus increasing system efficiency. The leakage flow reduction device includes a sealing sleeve removably mounted in the cavity between the plunger and the barrel, which includes a bore for slidably receiving the plunger to form an annular clearance gap between the plunger and the bore. The sealing sleeve is designed to resiliently flex in response to fluid pressure forces to reduce the annular clearance gap so as to minimize fluid leakage through the annular clearance gap. The sealing sleeve is formed as a separate piece from the barrel to permit simple, low cost replacement. The sealing sleeve is preferably applied to a fuel pump having a pump plunger for pressurizing fuel in a high pressure chamber.
    • 提供了一种改进的柱塞和筒组件,其包括往复安装在形成在筒体中的空腔中的柱塞和位于空腔中的泄漏流减少装置,用于减少柱塞周围的流体泄漏流动,从而提高系统效率。 泄漏流量减少装置包括可移除地安装在柱塞和筒体之间的空腔中的密封套筒,其包括用于可滑动地容纳柱塞以在柱塞和孔之间形成环形间隙的孔。 密封套被设计成响应于流体压力而弹性弯曲以减小环形间隙,以便使通过环形间隙的流体泄漏最小化。 密封套筒形成为与筒体分离的部件,以允许简单,低成本的更换。 密封套筒优选地应用于具有用于在高压室中对燃料加压的泵柱塞的燃料泵。
    • 9. 发明授权
    • Fuel injector with injection rate control
    • 燃油喷射器,喷油率控制
    • US06557776B2
    • 2003-05-06
    • US09907814
    • 2001-07-19
    • John T. Carroll, IIIDonald J. BensonYul J. Tarr
    • John T. Carroll, IIIDonald J. BensonYul J. Tarr
    • F02D106
    • F02M47/027F02M45/086F02M47/025F02M2200/21F02M2200/46
    • A closed needle injector assembly and method are provided which effectively extending injection duration and improving fueling accuracy at part load conditions, providing a low quantity detached pilot injection at all operating conditions and controlling the duration of, and dwell time between, the pilot injection and one or more higher flow rate primary injections independent of fuel injection pressure. The closed needle injector assembly includes first and second needle valve elements, respective control volumes and a single injection control valve to control the movement of the needle valve elements. A sequencing device is mounted on the injector to permit movement of only the inner needle valve element to define a low fuel injection rate event and permit selectively, controlled movement of both the inner and outer needle valve elements to open positions to define a subsequent primary fuel injection event.
    • 提供了一种封闭的针式注射器组件和方法,其有效地延长了喷射持续时间,并且在部分负荷条件下提高了加油精度,在所有操作条件下提供了低量的分离引燃喷射,并且控制引燃喷射与一次喷射之间的持续时间和停留时间 或更高的流速初级注射,与燃料喷射压力无关。 闭合针式注射器组件包括第一和第二针阀元件,相应的控制体积和单个注射控制阀,以控制针阀元件的移动。 排序装置安装在注射器上以允许仅移动内针阀元件以限定低燃料喷射速率事件并且允许内针阀和外针阀元件的选择性地受控制的运动到打开位置以限定随后的主要燃料 注射事件。
    • 10. 发明授权
    • Needle controlled fuel system with cyclic pressure generation
    • 具有循环压力发生的针控制燃料系统
    • US5819704A
    • 1998-10-13
    • US903310
    • 1997-07-30
    • Yul J. TarrJohn D. CroftsJohn T. Carroll, IIILaszlo D. Tikk
    • Yul J. TarrJohn D. CroftsJohn T. Carroll, IIILaszlo D. Tikk
    • F02M47/00F02D41/00F02D41/20F02D41/38F02D41/40F02M47/02F02M51/00F02M55/00F02M55/02F02M57/02F02M59/06F02M59/36F02M61/14F02M63/00F02M63/02F02M7/00
    • F02M51/005F02M47/027F02M55/005F02M57/02F02M57/025F02M57/026F02M59/06F02M59/366F02M61/14F02M63/0225F02D41/3809F02M2200/21F02M2547/003
    • The improved needle controlled common rail fuel system of the present invention includes split common rails serving respective sets of unit injectors. Each unit injector includes a mechanically actuated plunger reciprocally mounted to cyclically create gradual periods of increasing pressure in the common rail during the advancement stroke of the plunger followed by respective periods of decreasing pressure during the plunger's retraction stroke. The fuel injectors include a pressure control valve for controlling the amount of fuel pressurized by the plunger and a needle valve control device including an injection control valve for creating an injection event during a pumping event by controlling the fuel flow to drain so as to control the fuel pressure forces acting on an injector needle valve element. A flow limiting device is provided to limit the fuel flow from a control volume to drain during an injection event thus reducing parasitic losses while maintaining quick valve closing. In addition, a pressure energy recuperation means is provided which utilizes the pressure of the fuel in each injector's pressure chamber as a result of the pressure energy stored in the fuel to assist in retraction of the injector plunger during each pumping event.
    • 本发明的改进的针控共轨燃料系统包括用于各组单元喷射器的分开的共轨。 每个单元喷射器包括机械致动的柱塞,其往复安装以在柱塞的前进行程期间循环地创建共轨中的逐渐增加的压力周期,随后在柱塞的回缩冲程期间各自减小压力周期。 燃料喷射器包括用于控制由柱塞加压的燃料量的压力控制阀和包括喷射控制阀的针阀控制装置,该喷射控制阀用于通过控制排出的燃料流从而在泵送事件期间产生喷射事件,从而控制 作用在喷射器针阀元件上的燃料压力。 提供流动限制装置以在喷射事件期间将燃料流从控制体积限制到排放,从而在保持快速关阀的同时减少寄生损失。 此外,提供了一种压力能量回收装置,其利用存储在燃料中的压力能量,在每个泵送事件期间有助于使喷射器柱塞缩回,从而利用每个喷射器的压力室中的燃料的压力。