Gaseous metering control for dual fluid injector

    公开(公告)号:US09976526B2

    公开(公告)日:2018-05-22

    申请号:US14126048

    申请日:2012-06-29

    Abstract: A fuel injection system (10) for delivering metered amounts fuel into the combustion chamber or cylinder of an engine. The fuel delivered can selectively comprise a gaseous fuel, a liquid fuel or a fuel mixture comprising the gaseous fuel and the liquid fuel. When the fuel delivered comprises a mixture of the gaseous fuel and the liquid fuel, the quantity of liquid fuel comprises a metered quantity. The quantity of gaseous fuel also comprises a metered quantity, with the metering of the gaseous fuel being regulated by prediction. The injection event involves delivering the liquid fuel and the gaseous fuel, with the metering of the gaseous fuel delivered being adjusted to allow for the quantity of liquid fuel delivered with the gaseous fuel. The injection system (10) comprises a liquid fuel circuit (11) and a gaseous fuel circuit (13), both communicating with a fuel delivery injector (15) that delivers fuel to the combustion chamber. The fuel injection system (10) further comprises an electronic control unit (ECU) for controlling operation of the fuel injection system (10). The ECU controls operation of the fuel delivery injector (15) and a fluid metering injector (31). The ECU determines the proportions of liquid fuel and gaseous fuel required to meet the fuelling demand. The ECU operates the fluid metering injector (31) to deliver the required quantity of liquid fuel into a holding chamber within the fuel delivery injector (15). The ECU also predicts the gaseous fuel flow required to deliver the necessary proportion of gaseous fuel and operates the fuel delivery injector (15) accordingly. In particular, the ECU refers to a “look-up” map or table to determine the operating parameters of the fuel delivery injector (15) to deliver the necessary quantity of gaseous fuel in conjunction with the metered quantity of liquid fuel.

    Device for supplying an internal combustion engine with fuel
    6.
    发明授权
    Device for supplying an internal combustion engine with fuel 失效
    用于向内燃机供应燃料的装置

    公开(公告)号:US08464692B2

    公开(公告)日:2013-06-18

    申请号:US13060192

    申请日:2009-07-06

    Abstract: The invention relates to a device for supplying an internal combustion engine with fuel, having a fuel reservoir and a high-pressure pump, which are connected through a suction line, a metering valve which effects a change of the passage cross-section of the suction line, a rail for receiving high-pressure fuel, and a pressure control valve for controlling the pressure in the rail. The metering valve and the pressure control valve are combined in a common housing and have opposite opening directions. The metering valve and the pressure control valve have closing members which are rigidly connected to each other and are movable on a coincident movement axis.

    Abstract translation: 本发明涉及一种用于向内燃机提供燃料的装置,具有通过抽吸管线连接的燃料储存器和高压泵,该计量阀使吸入件的通道横截面发生变化 线路,用于接收高压燃料的轨道,以及用于控制轨道中的压力的​​压力控制阀。 计量阀和压力控制阀组合在公共壳体中并具有相反的开启方向。 计量阀和压力控制阀具有彼此刚性连接并且可以在重合运动轴线上移动的闭合件。

    Method for controlling fuel pressure for a fuel injected engine
    7.
    发明授权
    Method for controlling fuel pressure for a fuel injected engine 有权
    燃料喷射发动机的燃料压力控制方法

    公开(公告)号:US06925990B1

    公开(公告)日:2005-08-09

    申请号:US10632031

    申请日:2003-07-31

    CPC classification number: F02M69/52 F02M59/20

    Abstract: A fuel pressure control system for a fuel injected engine measures the fuel pressure at an outlet of a fuel pump and controls the operating speed of the fuel pump as a function of the difference between a desired pressure and a measured pressure. Signals are provided to the fuel pump which are pulse width modulated signals that have a pulse width determined as a function of the desired pressure at the outlet of the pump and an actual measured pressure at the outlet of the pump. The desired pressure is determined as a function of air flow into the engine, a desired air/fuel ratio which, in turn, is a function of engine speed and the load on the engine, and a desired fuel rate which is determined as a function of the air/fuel ratio and the air flow into the engine. The desired fuel rate is then used to select a pressure at the outlet of the pump which will result in the desired fuel rate.

    Abstract translation: 用于燃料喷射发动机的燃料压力控制系统测量燃料泵出口处的燃料压力,并根据所需压力和测量压力之间的差值来控制燃料泵的运行速度。 向燃料泵提供信号,脉冲宽度调制信号具有根据泵的出口处的期望压力确定的脉冲宽度和在泵的出口处的实际测量的压力。 所需的压力被确定为进入发动机的空气流量的函数,期望的空气/燃料比,其又是发动机速度和发动机上的负载的函数,以及被确定为功能的期望燃料速率 的空气/燃料比和进入发动机的空气流。 然后使用所需的燃料速率来选择泵的出口处的压力,这将导致所需的燃料速率。

    Spool and poppet inlet metering valve
    8.
    发明授权
    Spool and poppet inlet metering valve 有权
    阀芯和提升阀入口计量阀

    公开(公告)号:US06918409B1

    公开(公告)日:2005-07-19

    申请号:US10318378

    申请日:2002-12-13

    Abstract: Valve structures include a combination of spool valving and poppet valving. A spool function of the structure regulates the flow of a liquid, such as the flow of fuel to a diesel engine. A poppet function provides a low leakage in the valve in a closed or cut-off state. With this combination in a valve, spool clearance can be increased reducing the cost and precision machining/assembly of the components, because the poppet to seat closure provides the sealing function at cut-off. Included are an air-gap flux adjustment to adjust responsiveness to control current, and a force pre-load adjustment.

    Abstract translation: 阀门结构包括阀芯阀和提升阀的组合。 结构的阀芯功能调节液体的流动,例如燃料流向柴油发动机。 提升阀功能在闭合或截止状态下提供阀的低泄漏。 通过在阀门中的这种组合,可以提高阀芯间隙,从而降低成本并且精确地加工/组装部件,因为提升阀到阀座关闭提供了切断时的密封功能。 包括气隙磁通量调节,以调节对控制电流的响应性,以及力预加载调整。

    System for correcting the composition of fuel-air mixture upon a change
in the state of loading of an internal combustion engine
    9.
    发明授权
    System for correcting the composition of fuel-air mixture upon a change in the state of loading of an internal combustion engine 失效
    用于在内燃机的装载状态改变时校正燃料 - 空气混合物的组成的系统

    公开(公告)号:US5035222A

    公开(公告)日:1991-07-30

    申请号:US444770

    申请日:1989-12-01

    Inventor: Martin Feldinger

    CPC classification number: F02M7/08 F02M7/22 F02M9/133 Y10S261/56

    Abstract: A system with which a correction of the fuel composition upon a change in the state of load of an internal combustion engine with which a mixture-forming device (4, 6, 8, 9, 11) is associated is constructed in structurally simple manner. The mixture-forming device has a feed unit (6) for the fuel with an inlet-side fuel conveyor line (5) and a discharge-side fuel conveyor line (7) and a movably mounted feed member (18). Depending on the position of the feed member (18), the feed member (18) provides variable fuel passage cross-sections in the feed unit (6). The feed unit is connected via an opening (31) which is closed in sealing fashion by a movable equalization element (33), the equalization space (32) being connected via a branch line (34) to the discharge-side fuel conveyor line. The feed member and the equalization element are coupled with each other locked for movement in such a manner that a movement of the feed member in the direction of an enlarged fuel passage cross-section leads to a movement of the equalization element which reduces the equalization space. A movement of the feed member in the direction of a reduced fuel passage cross-section leads to a movement of the equalization element which enlarges the equalization space.

    Abstract translation: 在混合物形成装置(4,6,8,9,11)与内燃机的负载状态发生变化的情况下对燃料组成进行校正的系统以结构简单的方式构成。 混合物形成装置具有用于燃料的进料单元(6),其具有入口侧燃料输送管线(5)和排出侧燃料输送管线(7)和可移动安装的进料部件(18)。 进料构件(18)根据进料构件(18)的位置,在进料单元(6)中提供可变燃料通道横截面。 馈送单元经由可移动均衡元件(33)以密封方式封闭的开口(31)连接,均衡空间(32)经由分支管线(34)连接到排放侧燃料输送线。 馈送构件和均衡元件彼此联接以被锁定以便运动,使得进给构件沿着扩大的燃料通道横截面的方向的移动导致均衡元件的移动,这降低了均衡空间 。 进给构件在减小的燃料通道横截面的方向上的移动导致均衡元件的移动,这扩大了均衡空间。

    Fuel supply control device for fuel injected internal combustion engine
    10.
    发明授权
    Fuel supply control device for fuel injected internal combustion engine 失效
    燃油喷射内燃机燃料供应控制装置

    公开(公告)号:US4240391A

    公开(公告)日:1980-12-23

    申请号:US965875

    申请日:1978-12-04

    CPC classification number: F02M69/52 F02M69/22

    Abstract: Constant differential pressure valves, one for each cylinder of the engine, supply liquid fuel to the injection nozzles. The liquid fuel supplied to the valves is delivered from a chamber within a metering member mounted to turn within the bore of a stationary sleeve. A plate carried by the metering member has notches on its periphery which cooperate with openings in the enclosing sleeve to form variable orifices. The metering member is turned in proportion to the rate of air flow through an air intake passage for the engine.

    Abstract translation: 恒压差压阀,一个用于发动机的每个气缸,向注射喷嘴供应液体燃料。 供应到阀的液体燃料从安装成在固定套管的孔内转动的计量构件内的腔室输送。 由计量构件承载的板在其周边上具有凹槽,其与封闭套筒中的开口配合以形成可变孔。 计量构件与通过用于发动机的进气通道的空气流量的比例成比例地转动。

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