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    HIGH PRESSURE FLUID CONTROL SYSTEM AND METHOD OF CONTROLLING PRESSURE BIAS IN AN END USE DEVICE
    1.
    发明申请
    HIGH PRESSURE FLUID CONTROL SYSTEM AND METHOD OF CONTROLLING PRESSURE BIAS IN AN END USE DEVICE 审中-公开
    高压流体控制系统及控制压力偏差的方法

    公开(公告)号：WO2016197252A1

    公开(公告)日：2016-12-15

    申请号：PCT/CA2016/050667

    申请日：2016-06-10

    Applicant: WESTPORT POWER INC.

    Inventor： MUMFORD, David K. ,  PUZZUOLI, Derek ,  HAAS, Jordan C. ,  BROWN, Wesley A. ,  WOO, Victor ,  STEFFEN, Joshua W.

    IPC: G05D16/20 ,  F02D41/38 ,  F02M43/00

    CPC classification number: F02D41/0025 ,  F02D19/0605 ,  F02D19/0628 ,  F02D19/0642 ,  F02D19/0678 ,  F02D41/0027 ,  F02M43/00 ,  G05D16/20 ,  Y02T10/36

    Abstract: Disclosed are a fluid control system and method for controlling delivery of two variable pressure fluids to maintain a pressure bias between the two fluids within an end use device. The system employs an actively controlled vent valve which can be integrated into a fluid control module in preferred embodiments and is actuated to an open position to decrease fluid pressure in a first fluid supply line when a determined pressure differential reversal exceeds a predetermined threshold pressure differential reversal. The disclosed system is particularly useful in a high pressure direct injection (HPDI) multi-fueled engine system where the first fluid is a gaseous fuel and the second fluid is a liquid fuel. The fluid control system and method of controlling it provide for improved control of venting along with protecting system components from high back pressure and cross contamination of fluids.

    Abstract translation: 公开了一种用于控制两个可变压力流体的输送以在最终使用装置内的两种流体之间保持压力偏压的流体控制系统和方法。 该系统采用主动控制的排气阀，其可以在优选实施例中集成到流体控制模块中，并且当确定的压力差异反转超过预定的阈值压力差异反转时被致动到打开位置以减小第一流体供应管线中的流体压力 。 所公开的系统在高压直喷（HPDI）多燃料发动机系统中特别有用，其中第一流体是气体燃料，第二流体是液体燃料。 流体控制系统及其控制方法提供改进的排气控制以及保护系统部件免受高背压和流体的交叉污染。

    PREVENTING FUEL REGULATION FAILURE
    2.
    发明申请
    PREVENTING FUEL REGULATION FAILURE 审中-公开
    预防燃料调节失败

    公开(公告)号：WO2014138955A1

    公开(公告)日：2014-09-18

    申请号：PCT/CA2014/050186

    申请日：2014-03-06

    Applicant: WESTPORT POWER INC.

    Inventor： TOUCHETTE, Alain M.J. ,  WALKER, James D. ,  HAAS, Jordan C.

    IPC: F02D19/06 ,  F02D19/10 ,  F02D41/30 ,  F02D43/00 ,  F02M21/02

    CPC classification number: F02D41/0027 ,  F02D19/0605 ,  F02D19/0623 ,  F02D19/0665 ,  F02D19/0678 ,  F02D19/0681 ,  F02D19/0684 ,  F02D19/0694 ,  F02D19/08 ,  F02D19/10 ,  F02D41/0025 ,  F02D41/123 ,  F02D41/221 ,  F02D41/30 ,  F02D41/3047 ,  F02D41/3872 ,  F02D41/402 ,  F02D2041/224 ,  F02D2041/3881 ,  Y02T10/36

    Abstract: A method for preventing regulation failure of fuel regulator during a non-motoring operating mode of an internal combustion engine is provided. The fuel regulator employs a first fuel to regulate pressure of a second fuel. The first fuel is communicated to the fuel regulator through a first fuel circuit. The method comprises actuating a fuel injector that introduces the first fuel and the second fuel into a combustion chamber of the internal combustion engine during the non-motoring operating mode. The fuel injector is actuated with an injection command signal having a pulse width below a predetermined maximum value whereby no fuel is injected into the combustion chamber and the first fuel drains from the first fuel circuit through the fuel injector to a supply tank.

    Abstract translation: 提供了一种用于在内燃机的非电动操作模式期间防止燃料调节器的调节故障的方法。 燃料调节器采用第一燃料来调节第二燃料的压力。 第一燃料通过第一燃料回路传送到燃料调节器。 该方法包括致动在非电动操作模式期间将第一燃料和第二燃料引入内燃机的燃烧室的燃料喷射器。 燃料喷射器由具有低于预定最大值的脉冲宽度的喷射命令信号致动，由此燃料不被喷射到燃烧室中，并且第一燃料从第一燃料回路通过燃料喷射器排出到供应罐。

    METHOD AND SYSTEM FOR DETECTING AND DIAGNOSING A GASEOUS FUEL LEAK IN A DUAL FUEL INTERNAL COMBUSTION ENGINE SYSTEM
    3.
    发明申请
    METHOD AND SYSTEM FOR DETECTING AND DIAGNOSING A GASEOUS FUEL LEAK IN A DUAL FUEL INTERNAL COMBUSTION ENGINE SYSTEM 审中-公开
    用于检测和诊断双燃料内燃机系统中的气体燃料泄漏的方法和系统

    公开(公告)号：WO2014066995A1

    公开(公告)日：2014-05-08

    申请号：PCT/CA2013/050756

    申请日：2013-10-08

    Applicant: WESTPORT POWER INC.

    Inventor： HAAS, Jordan C. ,  TOUCHETTE, Alain M.J. ,  WARDLAW, Jamie Y.

    IPC: F02M65/00 ,  F02M43/00 ,  G01M15/04 ,  G01M15/09

    CPC classification number: F02D19/10 ,  F02B2201/064 ,  F02D19/0623 ,  F02D41/0027 ,  F02D41/221 ,  F02D2041/225 ,  F02D2200/0602 ,  F02M43/00 ,  Y02T10/36

    Abstract: A method for detecting and diagnosing a gaseous fuel leak in a dual fuel internal combustion engine system comprises producing a fault signal indicating that there is a leak of gaseous fuel into liquid fuel when an amount of gaseous fuel is detected in the liquid fuel return line through which liquid fuel is returned from the fuel injector to the fuel supply. The method can further comprise diagnosing a failure of the fuel injector or of at least one of the system components which regulate the gaseous fuel and the liquid fuel supply pressures by evaluating if an amount of gaseous fuel has been detected in the liquid fuel return line and calculating the pressure differential between the liquid fuel rail pressure and the gaseous fuel rail pressure.

    Abstract translation: 一种用于在双燃料内燃机系统中检测和诊断气体燃料泄漏的方法包括：当在液体燃料返回管线中检测到气体燃料的量时，产生一个故障信号，该故障信号指示气体燃料泄漏为液态燃料 哪些液体燃料从燃料喷射器返回到燃料供应。 该方法还可以包括通过评估在液体燃料返回管线中是否检测到气体燃料的量来诊断燃料喷射器或调节气体燃料和液体燃料供应压力的至少一个系统部件的故障，以及 计算液体燃料轨道压力和气体燃料轨道压力之间的压力差。

    PREVENTING FUEL REGULATION FAILURE
    7.
    发明公开
    PREVENTING FUEL REGULATION FAILURE 审中-公开
    防止燃油调节失效

    公开(公告)号：EP2971709A1

    公开(公告)日：2016-01-20

    申请号：EP14762882.0

    申请日：2014-03-06

    Applicant: Westport Power Inc.

    Inventor： TOUCHETTE, Alain M.J. ,  WALKER, James D. ,  HAAS, Jordan C.

    IPC: F02D19/06 ,  F02D19/10 ,  F02D41/30 ,  F02D43/00 ,  F02M21/02

    Abstract: A method for fuel regulation during a non-motoring operating mode of an internal combustion engine is provided. A fuel regulator employs a first fuel to regulate pressure of a second fuel. The first fuel is communicated to the fuel regulator through a first fuel circuit. The method comprises actuating a fuel injector that introduces the first fuel and the second fuel into a combustion chamber of the internal combustion engine during the non-motoring operating mode. The fuel injector is actuated with an injection command signal having a pulse width below a predetermined maximum value whereby no fuel is injected into the combustion chamber and the first fuel drains from the first fuel circuit through the fuel injector to a supply tank.

    Abstract translation: 提供了一种用于在内燃机的非驱动运行模式期间防止燃料调节器的调节失效的方法。 燃料调节器使用第一燃料来调节第二燃料的压力。 第一燃料通过第一燃料回路传送到燃料调节器。 该方法包括致动燃料喷射器，该燃料喷射器在非驾驶运行模式期间将第一燃料和第二燃料引入内燃机的燃烧室。 燃料喷射器利用具有低于预定最大值的脉冲宽度的喷射命令信号来致动，由此没有燃料被喷射到燃烧室中，并且第一燃料从第一燃料回路通过燃料喷射器排出到供应罐。

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