Fuel Injector with Damper Volume and Method for Controlling Pressure Overshoot
    12.
    发明申请
    Fuel Injector with Damper Volume and Method for Controlling Pressure Overshoot 审中-公开
    具有减震器体积的燃油喷射器和用于控制压力过冲的方法

    公开(公告)号:US20120043393A1

    公开(公告)日:2012-02-23

    申请号:US12857765

    申请日:2010-08-17

    IPC分类号: F02M63/00

    摘要: A fuel injector configured to inject a predetermined volume of fuel, such as heavy fuel oil, is disclosed. The disclosed injector includes an injector body that defines a fuel inlet, a fuel passageway, and an orifice. The injector also includes a needle disclosed at least partially within the injector body. The needle is movable between a closed position where the needle blocks the orifice and an open position where the needle at least partially unblocks the orifice. At least the injector body and the needle define a nozzle chamber. The nozzle chamber is in communication with a high pressure fuel passageway and the orifice. The fuel passageway and nozzle chamber have a combined volume greater than the predetermined injection volume. The combined volume of the nozzle chamber and fuel passageway act as a damper to alleviate the effects of pressure overshoot, pressure oscillations and water hammer

    摘要翻译: 公开了一种配置成喷射预定体积的燃料(例如重质燃料油)的燃料喷射器。 所公开的喷射器包括限定燃料入口,燃料通道和孔口的喷射器主体。 喷射器还包括至少部分地在喷射器主体内公开的针。 针可以在针塞住孔口的关闭位置和针至少部分地解除孔口的打开位置之间移动。 至少喷射器主体和针限定喷嘴室。 喷嘴室与高压燃料通道和孔口连通。 燃料通道和喷嘴室具有大于预定喷射体积的组合体积。 喷嘴室和燃料通道的组合体积用作减震器,以减轻压力过冲,压力振荡和水锤的影响

    Low Leakage Cam Assisted Common Rail Fuel System, Fuel Injector, And Operating Method Therefor
    13.
    发明申请
    Low Leakage Cam Assisted Common Rail Fuel System, Fuel Injector, And Operating Method Therefor 有权
    低泄漏凸轮辅助共轨燃油系统,燃油喷射器及其操作方法

    公开(公告)号:US20110290211A1

    公开(公告)日:2011-12-01

    申请号:US12791179

    申请日:2010-06-01

    IPC分类号: F02B3/00 F02M51/00 F02M69/46

    摘要: A fuel system includes a plurality of fuel injectors each defining a nozzle supply passage, a nozzle outlet and a low pressure space. The fuel system includes a plurality of mechanically actuated pressure intensifiers each including a tappet and being positioned partially within one of the fuel injectors, and a common rail fluidly connecting with each of the fuel injectors. Each of the fuel injectors further includes an injection pressure control mechanism having an injection pressure control valve. Each injection pressure control valve blocks the corresponding pressure intensifier from the common rail and fluidly connects the pressure intensifier with the low pressure space at a first position, and fluidly connects the pressure intensifier with the common rail and blocks the pressure intensifier from the low pressure space at a second position. Injecting fuel via operating the fuel system may include operating the fuel system in a low leakage mode where the pressure intensifier displaces fuel at a low pressure, between high pressure injections.

    摘要翻译: 燃料系统包括多个燃料喷射器,每个燃料喷射器限定喷嘴供应通道,喷嘴出口和低压空间。 燃料系统包括多个机械致动的压力增压器,每个压力增压器包括挺杆并且部分地位于一个燃料喷射器内,以及与每个燃料喷射器流体连接的共轨。 每个燃料喷射器还包括具有喷射压力控制阀的喷射压力控制机构。 每个喷射压力控制阀从共轨阻挡相应的增压器,并将压力增压器与第一位置处的低压空间流体连接,并且将压力增压器与公共导轨流体连接,并将压力增压器与低压空间 在第二个位置。 通过操作燃料系统注入燃料可以包括以低泄漏模式操作燃料系统,其中增压器在高压注射之间以低压将燃料置换。

    High pressure pump and method of reducing fluid mixing within same
    14.
    发明申请
    High pressure pump and method of reducing fluid mixing within same 有权
    高压泵及减少流体混合的方法

    公开(公告)号:US20060201484A1

    公开(公告)日:2006-09-14

    申请号:US11076384

    申请日:2005-03-09

    IPC分类号: F02M69/46

    摘要: Mixing of lubrication fluid and pumped fluid within a pump can undermine lubricity of the lubrication fluid and/or contaminate the pumped fluid (e.g. fuel) with lubrication fluid. In order to reduce mixing of fluids within a high pressure pump of the present disclosure, a lubrication fluid is supplied to the high pressure pump. A low pressure pump supplies a second fluid to the high pressure pump. The pressure of the second fluid is increased within at least one piston bore of the high pressure pump. Mixing of the lubrication fluid and the second fluid is reduced by fluidly connecting a weep annulus which is opened to the at least one piston bore to a low pressure pump inlet of the low pressure pump.

    摘要翻译: 泵内的润滑流体和泵送液体的混合可以破坏润滑流体的润滑性和/或用润滑流体污染泵送的流体(例如燃料)。 为了减少本公开的高压泵内的流体混合,向高压泵供给润滑流体。 低压泵将第二流体供应到高压泵。 第二流体的压力在高压泵的至少一个活塞孔内增加。 通过将开放的至少一个活塞孔的防漏环流体连接到低压泵的低压泵入口来减少润滑流体和第二流体的混合。

    Pressure control valve for a fuel system
    15.
    发明申请
    Pressure control valve for a fuel system 有权
    用于燃油系统的压力控制阀

    公开(公告)号:US20050133007A1

    公开(公告)日:2005-06-23

    申请号:US10741019

    申请日:2003-12-19

    摘要: A valve has a housing defining an interior of the valve. The valve has a first passage in the housing and a second passage in the housing. The valve has a flow limiter movable between a first position at which the first passage is in fluid communication with the second passage and a second position at which the first passage is not in fluid communication with the second passage. The valve has a flow restriction device movable between a first position at which a first flow rate is permitted into the interior of the valve and a second position at which a second flow rate is permitted out of the interior of the valve. The first flow rate is greater than the second flow rate.

    摘要翻译: 阀具有限定阀内部的壳体。 阀在壳体中具有第一通道,在壳体中具有第二通道。 阀具有流动限制器,该流量限制器可在第一通道与第二通道流体连通的第一位置和第一通道不与第二通道流体连通的第二位置移动。 所述阀具有流动限制装置,所述流动限制装置可在允许所述阀内部的第一流量的第一位置和允许第二流量允许在所述阀内部的第二位置之间移动。 第一流量大于第二流量。

    Method for predicting the quality of a product
    16.
    发明申请
    Method for predicting the quality of a product 失效
    用于预测产品质量的方法

    公开(公告)号:US20050065752A1

    公开(公告)日:2005-03-24

    申请号:US10952309

    申请日:2004-09-28

    IPC分类号: G06Q10/06 G06F19/00

    CPC分类号: G06Q10/06

    摘要: A method is provided for predicting a quality characteristic of a product to be manufactured. The method may integrate one or more of feature and tolerance information associated with the product, manufacturing characteristic information associated with the manufacture of the product, measurement capability characteristic information associated with the manufacture of the product, assembly characteristic information associated with an assembly of the product, and desired quality characteristic information associated with the product. Based on the integrated information, the quality characteristic of the product may be predicted.

    摘要翻译: 提供了一种用于预测要制造的产品的质量特性的方法。 该方法可以集成与产品相关联的特征和公差信息中的一个或多个,与产品制造相关联的制造特征信息,与产品制造相关联的测量能力特征信息,与产品的组合相关联的组装特征信息 ,以及与产品相关联的期望质量特征信息。 基于综合信息,可以预测产品的质量特性。

    Pressure relief valve
    17.
    发明申请
    Pressure relief valve 审中-公开
    减压阀

    公开(公告)号:US20060196476A1

    公开(公告)日:2006-09-07

    申请号:US11067273

    申请日:2005-02-28

    申请人: Alan Stockner

    发明人: Alan Stockner

    IPC分类号: F02M57/02 G05D11/00 F02M69/54

    摘要: A pressure relief valve includes a valve body defining an inlet configured to receive fluid from a fluid system, a pressure control orifice ending in a valve seat, and a guideway extending from the valve seat. The pressure relief valve further includes a valve closing member configured to abut the valve seat in a closed position and to be displaced from the valve seat in an open position, thereby releasing pressure from the fluid system. The pressure relief valve also includes a flow member including a stem and a flow plate. The stem is operably associated with the valve closing member and is configured to reciprocate within the guideway. The pressure relief valve further includes a valve spring operably associated with the valve body.

    摘要翻译: 减压阀包括阀体,其限定被配置为从流体系统接收流体的入口,终止在阀座中的压力控制孔和从阀座延伸的导轨。 减压阀还包括阀关闭构件,其构造成在关闭位置邻接阀座并且在打开位置从阀座移位,从而释放来自流体系统的压力。 减压阀还包括包括杆和流动板的流动构件。 杆与阀关闭构件可操作地相关联并且构造成在导轨内往复运动。 减压阀还包括与阀体可操作地相关联的阀弹簧。

    THREE WAY VALVE AND ELECTRO-HYDRAULIC ACTUATOR USING SAME
    18.
    发明申请
    THREE WAY VALVE AND ELECTRO-HYDRAULIC ACTUATOR USING SAME 失效
    使用相同的三路阀和电动液压驱动器

    公开(公告)号:US20050120872A1

    公开(公告)日:2005-06-09

    申请号:US10729539

    申请日:2003-12-05

    摘要: The present invention relates to high speed control valves which are especially applicable for use in fuel injection systems. Producing a valve with a quick response time within acceptable packaging constraints and with a structure that allows the valve to be mass produced with consistent performance between valves is extremely problematic. By moving flow restrictions within the valve away from the valve seats, flow forces on the valve member can be reduced, while possibly also permitting a reduction in the necessary travel distance of the valve member to improve response time and other performance characteristics. The valve is particularly applicable in controlling hydraulic pressure applied to the closing hydraulic surface of a direct control needle valve in a fuel injector.

    摘要翻译: 本发明涉及特别适用于燃料喷射系统的高速控制阀。 在可接受的包装限制内产生具有快速响应时间的阀门,并且具有允许阀门在阀门之间具有一致性能的批量生产的结构是非常有问题的。 通过将阀内的流动限制移动离开阀座,可以减小阀构件上的流动力,同时还可以减小阀构件的必要的行进距离以改善响应时间和其他性能特征。 该阀特别适用于控制施加到燃料喷射器中的直接控制针阀的关闭液压表面的液压。

    Directly controlled fuel injector with pilot plus main injection sequence capability
    19.
    发明申请
    Directly controlled fuel injector with pilot plus main injection sequence capability 有权
    直接控制燃油喷射器,带飞行员加主喷射序列功能

    公开(公告)号:US20050028783A1

    公开(公告)日:2005-02-10

    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.

    摘要翻译: 在一类燃油喷射系统中,单个燃油喷射器在给定的发动机循环期间和在喷射序列之间在高压和低压之间循环。 燃料喷射器可以是液压致动的,机械致动的,并且可能包括配备有允许燃料喷射器在高压和低压之间循环的进气阀的共轨喷油器。 这些燃料喷射系统中的许多还包括直接控制的喷嘴阀,其可以施加或释放与喷嘴阀相关联的关闭液压表面上的压力。 喷嘴阀通常是弹簧偏置的,并且因此具有预定义的开阀压力,其限定当在其关闭液压表面上释放压力时喷嘴阀将打开什么燃料压力。 虽然这些燃料喷射系统可以产生各种速率形状和喷射序列,但通常,特别感兴趣的喷射序列是包括相对较小体积的先导喷射的喷射序列,其通过较大体积的主喷射在时间上快速跟随。 为了使引燃喷射的精度更加一致,喷嘴阀在燃料喷射器中的燃料压力建立并且超过喷嘴阀的开阀压力时保持关闭。 该策略有助于减轻引燃喷射体积对燃油喷射器内和燃油喷射器之间的内在变异因素(如几何公差)的敏感性。

    Method for predicting the quality of a product
    20.
    发明授权
    Method for predicting the quality of a product 失效
    用于预测产品质量的方法

    公开(公告)号:US06823287B2

    公开(公告)日:2004-11-23

    申请号:US10320802

    申请日:2002-12-17

    IPC分类号: G06F1900

    CPC分类号: G06Q10/06

    摘要: A method is provided for predicting a quality characteristic of a product to be manufactured. The method may integrate one or more of feature and tolerance information associated with the product, manufacturing characteristic information associated with the manufacture of the product, measurement capability characteristic information associated with the manufacture of the product, assembly characteristic information associated with an assembly of the product, and desired quality characteristic information associated with the product. Based on the integrated information, the quality characteristic of the product may be predicted.

    摘要翻译: 提供了一种用于预测要制造的产品的质量特性的方法。 该方法可以集成与产品相关联的特征和公差信息中的一个或多个,与产品制造相关联的制造特征信息,与产品制造相关联的测量能力特征信息,与产品的组合相关联的组装特征信息 ,以及与产品相关联的期望质量特征信息。 基于综合信息,可以预测产品的质量特性。