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    • 1. 发明授权
    • Fluid accumulator arrangement for an internal combustion engine
    • 用于内燃机的流体蓄能器装置
    • US08607764B2
    • 2013-12-17
    • US13124190
    • 2009-10-21
    • Richard A. JudgeKenneth L. Smith
    • Richard A. JudgeKenneth L. Smith
    • F02M55/02F02M55/00
    • F02M55/025F02M63/02F02M63/0285F02M2200/60Y10T137/7761
    • A fluid accumulator arrangement suitable for use with a compression ignition internal-combustion engine comprising a first storage volume, a second storage volume, and valve means fluidly connected between the first storage volume and the second storage volume. In one embodiment, the valve means is a three-way control valve wherein, in a first position, the first storage volume communicates with the second storage volume, in a second position the first storage volume is isolated from the second storage volume and, in a third position, one of the first or second storage volumes communicates with a low pressure drain. The arrangement may also include control means to operate the valve means in accordance with predetermined control strategies.
    • 一种适于与压缩点火内燃机一起使用的流体蓄能器装置,其包括流体连接在第一存储容积和第二存储容积之间的第一存储容积,第二存储容量和阀装置。 在一个实施例中,阀装置是三通控制阀,其中,在第一位置,第一储存容积与第二储存容积连通,在第二位置,第一储存容积与第二储存容积隔离,并且 第三位置,第一或第二存储容积中的一个与低压排放通信。 该装置还可以包括根据预定控制策略来操作阀装置的控制装置。
    • 4. 发明授权
    • Apparatus and methods for testing a fuel injector nozzle
    • 用于测试燃料喷射器喷嘴的装置和方法
    • US08166807B2
    • 2012-05-01
    • US12663047
    • 2008-06-05
    • Godfrey Greeves
    • Godfrey Greeves
    • G01M15/04
    • F02M65/001
    • An apparatus and method is described for testing a multi-hole fuel injector nozzle. The apparatus comprises mounting means for the multi-hole nozzle and fuel supply means for supplying fuel to the multi-hole nozzle. The multi-hole nozzle is mounted outside a measurement chamber for capturing the fuel spray from an individual spray hole outlet of the multi-hole nozzle. In one embodiment, the apparatus includes a spray target plate, located within the measurement chamber, at which the fuel spray is directed. The spray target plate (28) is connected to a remote pressure sensor, which is used to determine the spray force of the fuel spray acting on the spray target plate. The apparatus is further arranged to determine the mass flow rate of the fuel spray. A new parameter, referred to as ‘momentum efficiency’ is defined, and calculated using the determined values of spray force and mass flow rate.
    • 描述了一种用于测试多孔燃料喷射器喷嘴的装置和方法。 该装置包括用于多孔喷嘴的安装装置和用于向多孔喷嘴供应燃料的燃料供给装置。 多孔喷嘴安装在测量室的外部,用于从多孔喷嘴的单个喷射孔出口捕获燃料喷雾。 在一个实施例中,该装置包括位于测量室内的喷射目标板,燃料喷雾被引导到该喷射目标板。 喷射目标板(28)连接到远程压力传感器,用于确定作用在喷射目标板上的燃料喷雾的喷射力。 该装置还被布置成确定燃料喷雾的质量流量。 定义了一个称为“动量效率”的新参数,并使用确定的喷射力和质量流量值进行计算。
    • 5. 发明授权
    • Fuel injection system
    • 燃油喷射系统
    • US08113175B2
    • 2012-02-14
    • US12374534
    • 2007-07-20
    • Anthony John Williams
    • Anthony John Williams
    • F02M69/54F02M51/00
    • F02M57/023F02M55/04F02M59/366F02M63/0007F02M63/0225F02M63/027
    • A fuel injection system for an internal combustion engine comprises: a first fuel injector which is arranged within a housing unit; an accumulator volume for supplying fuel to the first fuel injector; a first fuel pump arrangement comprising a pumping plunger which is driven, in use, to cause pressurisation of fuel within a first pump chamber; a first metering valve which is operable to control fuel flow into the first pump chamber; a first fuel passage providing communication between the first pump chamber and the accumulator volume; and a first non-return valve located in the first fuel passage between the first pump chamber and the accumulator volume; wherein the first fuel injector communicates with the first fuel passage at a position between the first non-return valve and the accumulator volume; and wherein communication between the first fuel injector and the accumulator volume is uninterrupted.
    • 一种用于内燃机的燃料喷射系统包括:第一燃料喷射器,其布置在壳体单元内; 用于向第一燃料喷射器供应燃料的蓄能器容积; 第一燃料泵装置,包括泵送柱塞,所述泵柱塞在使用中被驱动以在第一泵室内引起燃料加压; 第一计量阀,其可操作以控制进入所述第一泵室的燃料流; 第一燃料通道,其提供所述第一泵室和所述蓄电池容积之间的连通; 以及位于所述第一泵室和所述蓄液器容积之间的所述第一燃料通道中的第一止回阀; 其中所述第一燃料喷射器在所述第一止回阀和所述蓄液器容积之间的位置处与所述第一燃料通道连通; 并且其中所述第一燃料喷射器和所述蓄液器容积之间的连通不间断。
    • 7. 发明授权
    • Fuel composition estimation and control of fuel injection
    • 燃料成分估算和燃油喷射控制
    • US08042384B2
    • 2011-10-25
    • US12319910
    • 2009-01-13
    • Samuel G. Bailey
    • Samuel G. Bailey
    • G01M15/04
    • F02D41/0025F02D19/0628F02D19/0652F02D19/0684F02D19/088F02D41/3809F02D41/40F02D2041/288F02D2200/0602F02D2200/0606F02D2200/0612F02M37/0064Y02T10/36Y02T10/44
    • A method for estimating the composition of a fuel within an engine, comprises performing the following steps under ambient conditions: (a′) determining the ambient temperature of the fuel; (a) monitoring the fuel pressure inside a fuel rail of the engine over a period of time; (b) calculating at least one frequency component of the change in fuel pressure; (c) calculating the speed of sound transmission c on the basis of the at least one frequency component; and (d) estimating the composition of the fuel on the basis of the calculated speed of sound transmission at said ambient temperature. Suitably, the speed of sound transmission in the fuel is calculated using the equation: c=fλ, where the wavelength λ of the standing wave with frequency f is 2L, where L is the length of the fuel rail. Also described are methods for estimating the temperature of the fuel at a non-ambient temperature, and determining a fuels physical properties. Methods for controlling a fuel injection system in an engine according to the determined physical properties of the fuel and the resultant fuel injection system are also described.
    • 一种用于估计发动机内的燃料组成的方法,包括在环境条件下执行以下步骤:(a')确定燃料的环境温度; (a)在一段时间内监测发动机燃油轨内的燃油压力; (b)计算燃料压力变化的至少一个频率分量; (c)基于所述至少一个频率分量来计算声音传播速度c; 和(d)基于所计算的在所述环境温度下的声音传播速度来估计燃料的组成。 适当地,使用以下等式计算燃料中的声音传播速度:c =fλ,其中频率为f的驻波的波长λ为2L,其中L是燃料轨的长度。 还描述了在非环境温度下估计燃料的温度并确定燃料物理性质的方法。 还描述了根据确定的燃料和所得燃料喷射系统的物理特性来控制发动机中的燃料喷射系统的方法。
    • 8. 发明申请
    • IMPROVEMENTS RELATING TO FUEL PUMPS
    • 关于燃油泵的改进
    • US20110120418A1
    • 2011-05-26
    • US13054128
    • 2009-07-13
    • Antonin CheronPaul BuckleyMiguel G Calvo
    • Antonin CheronPaul BuckleyMiguel G Calvo
    • F02M59/46F04B53/10F04B49/00
    • F02M59/485F02M59/464F04B53/16Y10T137/7931Y10T137/7932
    • A pump head suitable for use in a fuel pump for a common rail fuel injection system, comprises a pump head housing defining a plunger bore and a pumping chamber. Fuel is pressurized within the pumping chamber by a plunger reciprocating within the plunger bore. The pump head housing includes an inlet valve arrangement for controlling fuel flow into the pumping chamber. The inlet valve arrangement includes a valve member movable between open and closed positions in response to fuel pressure within a gallery. The gallery communicates with an external chamber defined by a closure means externally mounted to the pump head housing. In use, the gallery communicates with a source of low-pressure fuel via the external chamber. The pump head housing has a projection which locates the closure member on the pump head housing.
    • 一种适合用于共轨燃料喷射系统的燃料泵的泵头包括限定柱塞孔和泵送室的泵头壳体。 燃料通过在柱塞孔内往复运动的柱塞在泵送室内被加压。 泵头壳体包括用于控制进入泵送室的燃料流的入口阀装置。 入口阀装置包括响应于画廊内的燃料压力在打开位置和关闭位置之间运动的阀构件。 画廊与由外部安装在泵头壳体上的封闭装置限定的外部室连通。 在使用中,画廊通过外部室与低压燃料源通信。 泵头壳体具有将封闭构件定位在泵头壳体上的突起。
    • 9. 发明授权
    • Detection of faults in an injector arrangement
    • 检测喷油器装置中的故障
    • US07945415B2
    • 2011-05-17
    • US12157543
    • 2008-06-11
    • Louisa J. Perryman
    • Louisa J. Perryman
    • G01R31/308
    • F02D41/2096F02D41/062F02D41/221F02D2041/2006F02D2041/2051F02D2041/2058F02D2041/2072F02D2041/2093F02M51/0603
    • A fault detection method for detecting short circuit faults in an injector arrangement at engine start-up. The injector arrangement comprises one or more piezoelectric fuel injectors, which are connected in a drive circuit. In one aspect of the invention, the potential at a bias point in the drive circuit is determined and compared with a predicted voltage. A short circuit fault signal is generated if the potential at the bias point is not within a predetermined tolerance voltage of the predicted voltage. In another aspect of the invention, a first charge pulse is applied to the injectors to charge the injectors. A discharge current path is provided during a delay period following the first charge pulse by closing a discharge switch. A faulty injector will discharge through the discharge current path during the delay period. A second charge pulse is applied to the injectors following the delay period. Current flow is sensed during the second charge pulse, and a short circuit warning signal is generated if the current flow during the second charge pulse exceeds a predetermined threshold current.
    • 一种用于检测发动机起动时喷射器装置中的短路故障的故障检测方法。 喷射器装置包括连接在驱动电路中的一个或多个压电燃料喷射器。 在本发明的一个方面中,确定驱动电路中的偏置点处的电位并将其与预测电压进行比较。 如果偏置点处的电位不在预测电压的预定公差电压内,则产生短路故障信号。 在本发明的另一方面,第一充电脉冲被施加到喷射器以对喷射器充电。 通过关闭放电开关,在第一充电脉冲之后的延迟时段期间提供放电电流路径。 在延迟期间,故障的进样器将通过放电电流路径放电。 在延迟周期之后,向喷射器施加第二充电脉冲。 在第二充电脉冲期间感测电流,并且如果在第二充电脉冲期间的电流超过预定阈值电流,则产生短路警告信号。
    • 10. 发明申请
    • FUEL INJECTOR WITH AN IMPROVED VALVE CONTROL ARRANGEMENT
    • 燃油喷射器与改进的阀门控制装置
    • US20110017844A1
    • 2011-01-27
    • US12918135
    • 2009-02-23
    • Eric LecluseRichard Denis Jacques Alain EntersEric Charleux
    • Eric LecluseRichard Denis Jacques Alain EntersEric Charleux
    • F02M47/02F02M63/00
    • F02M47/025F02M63/0029
    • A fuel injector for a compression ignition internal combustion engine which comprises a fuel injection valve having an injection valve member which is moveable in use, under the influence of fuel pressure within an injection valve member control chamber acting upon it, between a closed position and an open position. The fuel injector further comprises a high pressure fuel supply passage to the injection valve member control chamber, and an actuator operable to open and close a discharge valve connected between the injection valve member control chamber and a fuel outlet passage to a low pressure reservoir or drain. A shut-off valve is provided in the high pressure fuel supply passage and the shut-off valve has a shut-off valve member which is moveable in use, under the influence of fuel pressure within a shut-off valve member control chamber acting upon it, between a closed position and an open position. The shut-off valve member control chamber is connectable to the low pressure reservoir or drain via the discharge valve, and a fuel transfer passage is provided between the injection valve member control chamber and the low pressure reservoir or drain.
    • 一种用于压燃式内燃机的燃料喷射器,其包括燃料喷射阀,所述燃料喷射阀具有喷射阀构件,所述喷射阀构件在使用中可在其作用于其的喷射阀构件控制室内的燃料压力的影响下在关闭位置和 开仓 燃料喷射器还包括到喷射阀构件控制室的高压燃料供给通道和可操作以将连接在喷射阀构件控制室和燃料出口通道之间的排出阀打开和关闭到低压储存器或排水管的致动器 。 截止阀设置在高压燃料供给通道中,截止阀具有截止阀构件,该截止阀构件在使用中可在运行中的关闭阀构件控制室内的燃料压力的影响下运动 它在关闭位置和打开位置之间。 截止阀构件控制室经由排出阀可连接到低压储存器或排出口,并且燃料传送通道设置在喷射阀构件控制室和低压储存器或排水口之间。