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    PORT FUEL INJECTION APPARATUS
    2.
    发明申请
    PORT FUEL INJECTION APPARATUS 审中-公开
    港口燃油喷射装置

    公开(公告)号：WO2015113158A1

    公开(公告)日：2015-08-06

    申请号：PCT/CA2015/050067

    申请日：2015-01-29

    Applicant: WESTPORT POWER INC.

    Inventor： MUNSHI, Sandeep ,  SINGH, Ashish ,  KASTANIS, Eric

    IPC: F02M21/02 ,  F02B43/00 ,  F02D19/02 ,  F02M43/04

    CPC classification number: F02M21/0278 ,  F02B43/10 ,  F02M21/0281 ,  Y02T10/32

    Abstract: In adapting an internal combustion engine to be fuelled with a gaseous fuel it is preferable that both changes to the engine and cross-talk of gaseous fuel between respective intake ports are reduced when adding a port fuel injection system. A port injection apparatus is provided for introducing a gaseous fuel into an intake port of an internal combustion engine that comprises an intake manifold having a distribution chamber that fluidly connects an air intake to the intake port. The port injection apparatus comprises a bore in the intake manifold. An injection tube mounted in the bore extends across the distribution chamber toward the intake port. The injection tube comprises an inlet disposed near the bore and an outlet associated with the intake port. A valve is fluidly connected to receive gaseous fuel from a gaseous fuel supply and to introduce gaseous fuel into the inlet of the injection tube.

    Abstract translation: 在使用用燃料燃料燃烧的内燃机的情况下，优选地，当添加端口燃料喷射系统时，减少在各个进气口之间的发动机和气态燃料的串扰的变化。 提供了一种端口注入装置，用于将气体燃料引入到内燃机的进气口中，该内燃机包括具有将进气口与进气口流体连通的分配室的进气歧管。 端口注入装置包括进气歧管中的孔。 安装在孔中的注射管跨越分配室朝向进气口延伸。 注射管包括设置在孔附近的入口和与进气口相关联的出口。 阀被流体连接以从气体燃料供应接收气体燃料并且将气体燃料引入到注入管的入口中。

    FUEL INJECTION VALVE AND METHOD OF ACTUATING
    3.
    发明申请
    FUEL INJECTION VALVE AND METHOD OF ACTUATING 审中-公开
    燃油喷射阀和执行方法

    公开(公告)号：WO2013188970A1

    公开(公告)日：2013-12-27

    申请号：PCT/CA2013/050424

    申请日：2013-06-03

    Applicant: WESTPORT POWER INC.

    Inventor： WAGER, David R. ,  MCTAGGART-COWAN, Gordon ,  MUMFORD, David K. ,  MUNSHI, Sandeep

    IPC: F02M43/04 ,  F02D19/06 ,  F02M61/04

    CPC classification number: F02D19/024 ,  F02D19/0647 ,  F02M21/0254 ,  F02M21/0263 ,  F02M21/0269 ,  F02M43/04 ,  F02M51/0607 ,  F02M51/0632 ,  F02M61/04 ,  F02M61/08 ,  F02M61/10 ,  F02M61/161 ,  F02M2200/50 ,  Y02T10/32 ,  Y02T10/36

    Abstract: A fuel injection valve is provided for injecting a fuel into the combustion chamber or into the injection port of an internal combustion engine, the valve being actuated by an actuator assembly that comprises a small displacement actuator and a large displacement actuator. The method comprises commanding the small displacement actuator to move the valve member to a first open position corresponding to a first flow area and commanding the large displacement actuator to move the valve member to a second open position corresponding to a second flow area that is larger than the first flow area such that the ratio between the second flow area and the first flow area is at least 15:1. The fuel injection valve can also be operated to alternatively inject two different fuels, one of the fuels being a gaseous fuel and the other one being a liquid fuel.

    Abstract translation: 提供一种燃料喷射阀，用于将燃料喷射到燃烧室或内燃机的喷射口中，该阀由包括小排量致动器和大排量致动器的致动器组件致动。 该方法包括命令小排量致动器将阀构件移动到对应于第一流动区域的第一打开位置，并且命令大排量致动器将阀构件移动到对应于第二流动区域大于 所述第一流动区域使得所述第二流动区域和所述第一流动区域之间的比率为至少15:1。 燃料喷射阀还可以被操作以交替地注入两种不同的燃料，其中一种燃料是气体燃料，另一种是液体燃料。

    MULTI-FUEL STORAGE SYSTEM AND METHOD OF STORING FUEL IN A MULTI-FUEL STORAGE SYSTEM
    5.
    发明申请
    MULTI-FUEL STORAGE SYSTEM AND METHOD OF STORING FUEL IN A MULTI-FUEL STORAGE SYSTEM 审中-公开
    多燃料储存系统的多燃料储存系统和储存燃料的方法

    公开(公告)号：WO2007106988A1

    公开(公告)日：2007-09-27

    申请号：PCT/CA2007/000430

    申请日：2007-03-13

    Applicant: WESTPORT POWER INC. ,  MUNSHI, Sandeep ,  GRAM, Anker

    Inventor： MUNSHI, Sandeep ,  GRAM, Anker

    IPC: F17C1/12 ,  B60K15/10 ,  F02M21/02 ,  F17C5/04 ,  F17C5/06 ,  F17C7/04

    CPC classification number: F17C5/04 ,  B60K15/03006 ,  F17C2201/0109 ,  F17C2201/0147 ,  F17C2205/0149 ,  F17C2205/0358 ,  F17C2221/012 ,  F17C2221/033 ,  F17C2223/0123 ,  F17C2223/036 ,  F17C2227/0157 ,  F17C2227/0393 ,  F17C2260/044 ,  F17C2265/015 ,  F17C2265/025 ,  F17C2270/0168 ,  Y02E60/321

    Abstract: Advantages such as reduced emissions of NOx can be achieved if engines are fuelled with mixtures of gaseous fuels such as hydrogen and natural gas. It is also desirable to store the gaseous fuels separately so that the fuel mixture ratio can be changed responsive to engine operating conditions. However, compared to liquid fuels, a problem with storing gaseous fuels is that they generally require larger storage volumes to hold an equivalent amount of fuel on an energy basis. There are also obstacles to storing some gaseous fuels such as hydrogen in liquefied form because of the energy required to liquefy them and the extremely low temperatures needed to store such gaseous fuels in liquefied form. The invention relates to an apparatus for increasing the storage density of gaseous fuels such as hydrogen by storing them in gaseous form at high pressures and at sub-ambient temperatures. An apparatus is provided for separately storing a first gaseous fuel and a second gaseous fuel. A first vessel defines a first thermally insulated space for holding the first gaseous fuel in a liquefied form. A second thermally insulated space that can hold the second fuel is disposed within the first vessel. The second thermally insulated space is separated from the first thermally insulated space by a thermally conductive fluid barrier. The second gaseous fuel liquefies at a lower temperature than the first gaseous fuel, whereby the second gaseous fuel can be stored within the second thermally insulated space in a gaseous form at a sub-ambient temperature.

    Abstract translation: 如果使用气体燃料（如氢气和天然气）的混合物来燃烧发动机，则可以实现减少NOx排放的优点。 还期望分开地储存气体燃料，使得可以响应于发动机操作条件改变燃料混合比。 然而，与液体燃料相比，存储气体燃料的问题在于它们通常需要更大的储存量以在能量基础上保持等量的燃料。 由于液化它们所需的能量以及以液化形式存储这种气体燃料所需的极低温度，因此存在一些气态燃料如氢气的液化形式存在障碍。 本发明涉及一种用于通过将气体燃料如氢气储存在高压和低于环境温度下的气体燃料来提高其储存密度的装置。 提供了用于分别存储第一气体燃料和第二气体燃料的装置。 第一容器限定用于将第一气态燃料以液化形式保持的第一绝热空间。 可以容纳第二燃料的第二绝热空间设置在第一容器内。 第二隔热空间通过导热流体屏障与第一绝热空间分离。 第二气体燃料在比第一气态燃料低的温度下液化，由此第二气体燃料可以在亚环境温度下以气态形式储存在第二绝热空间内。

    IGNITION APPARATUS AND METHOD FOR A PREMIXED CHARGE IN A GASEOUS-FUELLED ENGINE
    6.
    发明申请
    IGNITION APPARATUS AND METHOD FOR A PREMIXED CHARGE IN A GASEOUS-FUELLED ENGINE 审中-公开
    燃气发动机中预先充电的点火装置和方法

    公开(公告)号：WO2016161518A1

    公开(公告)日：2016-10-13

    申请号：PCT/CA2016/050407

    申请日：2016-04-08

    Applicant: WESTPORT POWER INC.

    Inventor： SAUVE, Kyle D. ,  MUNSHI, Sandeep ,  WU, Ning

    IPC: F02D43/00 ,  F02D19/08 ,  F02M43/00 ,  F02P23/00 ,  F02P3/00

    CPC classification number: F02D19/10 ,  F02B17/005 ,  F02D19/0689 ,  F02D19/0692 ,  F02D19/0694 ,  F02D35/025 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/3041 ,  F02D41/3047 ,  F02D41/3094 ,  F02D41/403 ,  F02D43/04 ,  F02M43/04 ,  F02P3/01 ,  F02P13/00 ,  F02P15/006 ,  F02P23/04 ,  F02P23/045 ,  Y02T10/128 ,  Y02T10/36 ,  Y02T10/44

    Abstract: Premixed engines have ignition issues when engine speed and load are below a predetermined range. An ignition apparatus for igniting a premixed charge in a gaseous-fuelled internal combustion engine comprises an ignition device associated with a combustion chamber of the internal combustion engine. There is at least one of a dilutant injector for introducing a diluting agent that forms a stratified charge around the ignition device and an enrichment injector for introducing gaseous fuel that forms a stratified charge around the ignition device. An electronic controller is operatively connected with the ignition device and the at least one of the dilutant injector and the enrichment injector and programed to at least one of actuate the dilutant injector to introduce the diluting agent when the ignition device decreases a local air-fuel equivalence ratio around the ignition device below a predetermined threshold; and actuate the enrichment injector to introduce the gaseous fuel to decrease the local air- fuel equivalence ratio when engine load and engine speed are below a predetermined threshold engine load and speed range and when the ignition device does not affect the local air-fuel equivalence around the ignition device.

    Abstract translation: 当发动机转速和负载低于预定范围时，预混发动机具有点火问题。 用于点燃气体燃料内燃机中的预混合装料的点火装置包括与内燃机的燃烧室相关联的点火装置。 至少有一个用于引入在点火装置周围形成分层电荷的稀释剂的稀释剂和用于引入在点火装置周围形成分层电荷的气体燃料的浓缩注入器。 电子控制器与点火装置和稀释剂注入器和浓缩注入器中的至少一个可操作地连接，并被编程为当点火装置降低当地空气燃料当量时致动稀释剂喷射器以引入稀释剂中的至少一个 点火装置周围的比率低于预定阈值; 并且当发动机负荷和发动机转速低于预定阈值的发动机负载和速度范围时以及当点火装置不影响周围的局部空气 - 燃料当量时，致动浓缩注入器引入气体燃料以降低局部空气 - 燃料当量比 点火装置。

    FUEL SYSTEM DIAGNOSTICS
    8.
    发明申请
    FUEL SYSTEM DIAGNOSTICS 审中-公开
    燃油系统诊断

    公开(公告)号：WO2014138970A1

    公开(公告)日：2014-09-18

    申请号：PCT/CA2014/050212

    申请日：2014-03-11

    Applicant: WESTPORT POWER INC.

    Inventor： HUANG, Jian ,  MUNSHI, Sandeep

    IPC: F02D41/14 ,  F02D19/06 ,  F02D29/02 ,  F02D41/22

    CPC classification number: F02D41/1438 ,  F02D19/06 ,  F02D19/0647 ,  F02D29/02 ,  F02D35/024 ,  F02D35/027 ,  F02D35/028 ,  F02D41/008 ,  F02D41/14 ,  F02D41/221 ,  F02D2041/224 ,  F02D2200/0612 ,  F02D2200/0616 ,  F02D2200/0618 ,  Y02T10/36 ,  Y02T10/40

    Abstract: A method and apparatus for in situ operating an internal combustion engine comprising determining at least one combustion characteristic for a combustion chamber of the internal combustion engine, comprising an actual heat release signal for the combustion chamber; and inputting the actual heat release signal into a diagnostic logic tree for diagnosing changes in combustion characteristics due to at least one of: a malfunctioning fuel injector, a start of combustion timing error; and a change in fuel quality; and performing a mitigation technique to compensate for the changes in combustion characteristics.

    Abstract translation: 一种用于原位操作内燃机的方法和装置，包括确定内燃机的燃烧室的至少一个燃烧特性，包括用于燃烧室的实际放热信号; 并且将实际的放热信号输入到诊断逻辑树中，用于诊断燃烧特性的变化，这是由于以下中的至少一种：燃油喷射器故障，燃烧定时误差的开始; 燃油质量改变; 并执行缓解技术以补偿燃烧特性的变化。

    FUEL INJECTION VALVE AND METHOD FOR CO-INJECTING A LIQUID AND A GASEOUS FUEL INTO THE COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE
    10.
    发明申请
    FUEL INJECTION VALVE AND METHOD FOR CO-INJECTING A LIQUID AND A GASEOUS FUEL INTO THE COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE 审中-公开
    燃油喷射阀和将液体和气体燃料并入内燃机的燃烧室的方法

    公开(公告)号：WO2009155684A1

    公开(公告)日：2009-12-30

    申请号：PCT/CA2009/000590

    申请日：2009-04-30

    Applicant: WESTPORT POWER INC. ,  MUMFORD, David ,  MUNSHI, Sandeep

    Inventor： MUMFORD, David ,  MUNSHI, Sandeep

    IPC: F02M43/04 ,  F02M21/02

    CPC classification number: F02M21/0263 ,  F02D19/0642 ,  F02D19/0689 ,  F02D19/0694 ,  F02D19/081 ,  F02M43/04 ,  F02M57/025 ,  F02M63/0049 ,  Y02T10/32 ,  Y02T10/36

    Abstract: A fuel injection valve is provided for co-injecting a liquid and a gaseous fuel into the combustion chamber of an internal combustion engine. A solid needle regulates the injection of liquid and gaseous fuels from a cavity in the fuel injection valve into the combustion chamber when the needle is lifted to its open position. In preferred embodiments, liquid fuel is metered and pressurized in an intensifier's cylinder provided within the valve body and the liquid fuel is delivered through a restricted flow passage into the cavity where it mixes with the gaseous fuel. The restricted flow passage can be formed by a small passage formed in the valve body or an annular passage between the needle and the valve body.

    Abstract translation: 提供一种燃料喷射阀，用于将液体和气体燃料共同喷射到内燃机的燃烧室中。 当针被提升到其打开位置时，固体针调节液体和气体燃料从燃料喷射阀中的空腔喷射到燃烧室中。 在优选实施例中，液体燃料被计量并在设置在阀体内的增压器的气缸中进行加压，并且液体燃料通过限制的流动通道输送到空腔中，在该空腔中与气体燃料混合。 受限制的流动通道可以由形成在阀体中的小通道或针和阀体之间的环形通道形成。

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