公开(公告)号：WO2017031598A1

公开(公告)日：2017-03-02

申请号：PCT/CA2016/051013

申请日：2016-08-26

申请人： WESTPORT POWER INC.

发明人： SOLERI, Dominique J. ,  OUELLETTE, Patric ,  KARIMI SHARIF, Hamed

IPC分类号： F02D41/38 ,  F02B77/04 ,  F02D19/06 ,  F02M21/02 ,  F02M43/04 ,  F02M61/16 ,  F02M65/00

CPC分类号： F02D41/0027 ,  F02B77/04 ,  F02D19/0605 ,  F02D19/0623 ,  F02D19/0647 ,  F02D19/0689 ,  F02D19/0694 ,  F02D19/081 ,  F02D41/0025 ,  F02D41/008 ,  F02D41/22 ,  F02D41/401 ,  F02D2041/389 ,  F02M21/0248 ,  F02M43/04 ,  F02M65/008 ,  F02M2200/06 ,  F02M2200/46 ,  Y02T10/32 ,  Y02T10/36 ,  Y02T10/44

摘要： A method for deposit mitigation in a gaseous fuel injector that introduces a gaseous fuel through a gaseous fuel orifice directly into a combustion chamber of an internal combustion engine includes at least one of a) reducing the length of the gaseous fuel orifice by substantially between 10% to 50% of a previous length of a previous gaseous fuel orifice showing deposit accumulation above a predetermined threshold; b) providing the gaseous fuel orifice with an inwardly and substantially linearly tapering profile; c) determining deposit mitigation is needed; and performing at least one of the following deposit mitigation techniques i) increasing gaseous fuel injection pressure wherein deposit accumulation is reduced during fuel injection; and ii) decreasing gaseous fuel temperature wherein a rate of deposit accumulation is reduced; and d) injecting compressed air through the gaseous fuel orifice during shutdown of the internal combustion engine; whereby torque loss in the internal combustion engine due to deposit accumulation in the gaseous fuel orifice is reduced below a predetermined value.

摘要翻译： 一种气态燃料喷射器中的沉积物缓解方法，其将通过气体燃料孔的气体燃料直接引入内燃机的燃烧室中，包括以下至少之一：a）将气体燃料孔的长度大致减小10％ 到之前的气体燃料孔口的先前长度的50％，其显示高于预定阈值的沉积物积聚; b）向气体燃料孔提供内向且基本线性渐缩的轮廓; c）需要确定减缓沉积物; 并执行以下沉积物缓解技术中的至少一种：i）增加气体燃料喷射压力，其中在燃料喷射期间沉积物积聚减少; 和ii）降低气体燃料温度，其中沉积物积聚速率降低; 以及d）在所述内燃机关闭期间，通过所述气体燃料孔喷射压缩空气; 由此由于气体燃料喷口中的沉积物积聚引起的内燃机中的扭矩损失降低到预定值以下。

公开(公告)号：WO2016191886A1

公开(公告)日：2016-12-08

申请号：PCT/CA2016/050639

申请日：2016-06-03

申请人： WESTPORT POWER INC.

发明人： WALKER, Charles Joseph

IPC分类号： F02D19/06 ,  F02D41/30 ,  F02M21/02

CPC分类号： F02D41/0027 ,  F02D19/061 ,  F02D19/0628 ,  F02D19/0647 ,  F02D19/0692 ,  F02D19/081 ,  F02D41/0025 ,  F02D41/3005 ,  F02M26/05 ,  Y02T10/36

摘要： It is a challenge to adapt an engine designed to be fuelled with a first fuel to be fuelled with multiple fuels when a base engine electronic control unit cannot be adapted as well. A multi-fuel internal combustion engine that can be fuelled with at least one of a first and second fuel comprises a first fuel injector for introducing the first fuel directly into a combustion chamber; a first electronic controller programmed to generate a first injector drive signal for actuating the first fuel injector; a second fuel injector for introducing the second fuel upstream of an intake valve; a second electronic controller programed to generate a second injector drive signal for actuating the second fuel injector; an emulation injector comprising an electrical characteristic representative of a first fuel injector electrical characteristic; and an injector select apparatus operatively connected with the second electronic controller for selectively applying the first injector drive signal to one of the first fuel injector and the emulation injector. The second electronic controller is programmed to generate the second injector drive signal as a function of the first injector drive signal and to command the injector select apparatus to apply the first injector drive signal to one of the first fuel injector and the emulation injector.

摘要翻译： 当基础发动机电子控制单元也不能适应时，将使用第一种燃料设计的发动机与多种燃料进行配合是一项挑战。 可以用第一和第二燃料中的至少一种来燃料的多燃料内燃机包括用于将第一燃料直接引入燃烧室的第一燃料喷射器; 第一电子控制器，被编程为产生用于致动所述第一燃料喷射器的第一喷射器驱动信号; 第二燃料喷射器，用于在进气门的上游引入第二燃料; 第二电子控制器，被编程为产生用于致动所述第二燃料喷射器的第二喷射器驱动信号; 模拟喷射器，其包括表示第一燃料喷射器电特性的电特性; 以及与第二电子控制器可操作地连接的喷射器选择装置，用于选择性地将第一喷射器驱动信号施加到第一燃料喷射器和仿真喷射器之一。 第二电子控制器被编程为根据第一喷射器驱动信号产生第二喷射器驱动信号，并命令喷射器选择装置将第一喷射器驱动信号施加到第一燃料喷射器和仿真喷射器之一。

公开(公告)号：WO2015077874A1

公开(公告)日：2015-06-04

申请号：PCT/CA2014/051092

申请日：2014-11-14

申请人： WESTPORT POWER INC.

发明人： HARPER, Gregory, C.

IPC分类号： G01F23/26

CPC分类号： G01F23/268

摘要： Sensor probes for capacitance-type liquid level sensors do not comprise an acceptable balance between cost, performance and durability for mobile applications. An improved sensor probe is provided. A first electrode comprises two or more first plate sections arranged in angular relationship with respect to each other. A second electrode comprises two or more second plate sections arranged in angular relationship with respect to each other. Spacers are located between the first and second electrodes such that each first plate section is spaced apart in parallel and substantially overlapping relationship with respective second plate sections. Fasteners securely fix the first and second electrodes in position.

摘要翻译： 用于电容式液位传感器的传感器探头在移动应用的成本，性能和耐久性之间不能包含可接受的平衡。 提供了一种改进的传感器探头。 第一电极包括相对于彼此成角度关系布置的两个或更多个第一板部分。 第二电极包括相对于彼此成角度关系布置的两个或更多个第二板部分。 间隔件位于第一和第二电极之间，使得每个第一板部分平行间隔开并且与相应的第二板部分基本上重叠。 紧固件将第一和第二电极牢固地固定就位。

公开(公告)号：WO2015027335A1

公开(公告)日：2015-03-05

申请号：PCT/CA2014/050817

申请日：2014-08-26

申请人： WESTPORT POWER INC.

发明人： MILLWARD, Philip C.

IPC分类号： F02M25/07 ,  F02D21/08

CPC分类号： F02M26/43 ,  F01N13/107 ,  F02B29/0406 ,  F02B37/025 ,  F02B37/16 ,  F02B37/18 ,  F02M26/05 ,  F02M26/06 ,  F02M26/09 ,  F02M26/14 ,  F02M26/23 ,  F02M26/36 ,  F02M26/41 ,  F02M35/10222 ,  Y02T10/144

摘要： An improved exhaust gas recirculation (EGR) system comprises combustion chambers divided into a first portion and a second portion. An intake valve and an exhaust valve are associated with each combustion chamber. An intake manifold is in fluid communication with the combustion chambers through respective intake valves. A first exhaust manifold is in fluid communication with said first portion of combustion chambers through respective exhaust valves. A second exhaust manifold is in fluid communication with said second portion of combustion chambers through respective exhaust valves. An EGR exhaust valve is associated with each combustion chamber in said second portion. An EGR manifold is in fluid communication with each combustion chamber in said second portion through respective EGR exhaust valves and with said at least one intake manifold.

摘要翻译： 改进的废气再循环（EGR）系统包括分为第一部分和第二部分的燃烧室。 进气阀和排气阀与每个燃烧室相关联。 进气歧管通过相应的进气阀与燃烧室流体连通。 第一排气歧管通过相应的排气阀与燃烧室的所述第一部分流体连通。 第二排气歧管通过相应的排气阀与燃烧室的第二部分流体连通。 EGR排气阀与所述第二部分中的每个燃烧室相关联。 EGR歧管通过相应的EGR排气阀和所述至少一个进气歧管与所述第二部分中的每个燃烧室流体连通。

公开(公告)号：WO2015003650A1

公开(公告)日：2015-01-15

申请号：PCT/CN2014/082028

申请日：2014-07-11

申请人： WESTPORT POWER INC. ,  REN, Ziyuan

发明人： REN, Ziyuan ,  SAENZ, Raymundo A.

IPC分类号： F04B15/08

CPC分类号： F04B37/08

摘要： A low pressure cryogenic pump assembly has components that define the dimensions of the pump's swept volume and dead volume which are made with manufacturing tolerances, that collectively, when compounded with each other, result in a dead volume of no more than 20% of the swept volume. The pump assembly comprises a pump piston that is reciprocable in a pumping chamber between a fully retracted position and a fully extended position to define a swept volume. The dead volume is defined by fluid volume remaining inside the pumping chamber when said pump piston is in its fully extended position.

摘要翻译： 低压低温泵组件具有限定泵的扫掠体积和死体积的尺寸的部件，这些尺寸是以制造公差制造的，当制造公差相互组合时，它们的死体积不超过扫描体积的20％ 卷。 泵组件包括泵活塞，该活塞可以在完全缩回位置和完全伸出位置之间的泵送室中往复运动以限定扫掠体积。 当所述泵活塞处于其完全伸出位置时，死体积由泵室内的流体体积限定。

公开(公告)号：WO2014205566A1

公开(公告)日：2014-12-31

申请号：PCT/CA2014/050583

申请日：2014-06-20

申请人： WESTPORT POWER INC.

发明人： MARK, Randall, T. ,  WALKER, James, D.

IPC分类号： F02D41/38 ,  F02D19/10 ,  F02M21/02 ,  F02M25/00 ,  F02M43/02 ,  F02M43/04

CPC分类号： F02D41/3863 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/3845 ,  F02D2041/3881 ,  F02D2250/31 ,  F02M21/023 ,  F02M21/0245 ,  F02M43/02 ,  F02M43/04 ,  F02M55/02 ,  F02M55/025 ,  Y02T10/32

摘要： A module for controlling a first fuel rail pressure in an internal combustion engine and maintaining a predetermined pressure bias with a second fuel rail pressure comprises a manifold body and several components that are mounted on the manifold body to form an unitary and independent structure that is fluidly connected to a first fuel supply and to a first fuel rail. The components that are mounted on the manifold body are a pressure regulator, a shut-off valve and a check valve and can further comprise, for example, a service valve for venting the fuel from the module and/or a sensor for measuring the pressure in the first fuel rail.

摘要翻译： 用于控制内燃机中的第一燃料轨压力并且利用第二燃料轨压力保持预定压力偏压的模块包括歧管主体和安装在歧管主体上的几个部件，以形成流体性的整体和独立的结构 连接到第一燃料供应和第一燃料轨道。 安装在歧管主体上的部件是压力调节器，截止阀和止回阀，并且还可以包括例如用于从模块排出燃料的维修阀和/或用于测量压力的传感器 在第一个燃油轨。

公开(公告)号：WO2014186893A1

公开(公告)日：2014-11-27

申请号：PCT/CA2014/050470

申请日：2014-05-21

申请人： WESTPORT POWER INC. ,  DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.À.R.L.

发明人： MEEK, George A. ,  PANESAR, Lukhbir

IPC分类号： F02M43/04 ,  F02D19/08 ,  F02D41/38 ,  F02M25/00 ,  F02M43/00 ,  F02M61/04

CPC分类号： F02M43/04 ,  F02D19/0694 ,  F02D19/10 ,  F02M45/086 ,  F02M47/027 ,  F02M55/025 ,  F02M61/10 ,  F02M61/14 ,  F02M61/16 ,  F02M63/0015 ,  F02M63/0064 ,  F02M2200/40 ,  F02M2200/857 ,  Y02T10/36

摘要： A fuel injector (200) for an internal combustion engine is disclosed. The fuel injector is installable in a cylinder head bore of a cylinder head of the engine and comprises a body region (B) arranged to be received within the cylinder head bore, and a head region (H) arranged to extend outside the cylinder head bore to protrude from the cylinder head when the injector is installed in the cylinder head bore, a first valve needle (116) arranged to control the injection of a gaseous fuel from a first outlet, a second valve needle (120) arranged to control the injection of a liquid fuel from a second outlet, a gaseous fuel inlet (130) for admitting the gaseous fuel to the injector, and a liquid fuel inlet (156) for admitting the liquid fuel to the injector. The gaseous fuel inlet (130) is disposed in the body region (B) of the injector, and wherein the liquid fuel inlet (156) is disposed in the head region (H) of the injector. Preferably, the injector includes an internal accumulator volume (270) so that an external fuel rail is not necessary.

摘要翻译： 公开了一种用于内燃机的燃料喷射器（200）。 燃料喷射器可安装在发动机的气缸盖的气缸盖孔中，并且包括布置成容纳在气缸盖孔内的主体区域（B）和布置成延伸到气缸盖孔外侧的头部区域（H） 当所述喷射器安装在所述气缸盖孔中时，从所述气缸盖突出;布置成控制从第一出口喷射气态燃料的第一阀针（116），布置成控制所述喷射的第二阀针 来自第二出口的液体燃料，用于将气体燃料引入喷射器的气体燃料入口（130）和用于将液体燃料引入喷射器的液体燃料入口（156）。 气体燃料入口（130）设置在喷射器的主体区域（B）中，并且其中液体燃料入口（156）设置在喷射器的头部区域（H）中。 优选地，喷射器包括内部蓄能器容积（270），使得不需要外部燃料轨。

公开(公告)号：WO2014141179A1

公开(公告)日：2014-09-18

申请号：PCT/IB2014/059808

申请日：2014-03-14

申请人： EMER S.P.A. ,  WESTPORT POWER INC.

发明人： OMESTI, Giulia ,  DEFILIPPI, Roberto ,  FARZIN, Soroush ,  BRIZZOLARI, Giulio

IPC分类号： F16K37/00 ,  F17C13/04 ,  F16K17/00 ,  F16K17/16 ,  F16K17/40

CPC分类号： F16K17/003 ,  F16K17/16 ,  F16K17/38 ,  F16K17/383 ,  F16K17/40 ,  F16K17/403 ,  F16K37/0008 ,  F16K37/0058 ,  F17C13/04 ,  F17C2205/0314 ,  F17C2205/0332 ,  F17C2205/0382 ,  F17C2205/0394 ,  F17C2221/033 ,  F17C2221/035 ,  F17C2223/0123 ,  F17C2223/0153 ,  F17C2223/033 ,  F17C2223/035 ,  F17C2223/036 ,  F17C2260/021 ,  F17C2260/023 ,  F17C2270/0168

摘要： The invention relates to a safety device (1), in particular for a cylinder for holding gaseous fluids under pressure for a self-propulsion gas system, comprising a device body (2 3), in which a passage (8, 40) is defined for a fluid, said passage extending from an entry aperture (6), suitable for being placed in fluidic communication with said cylinder, to an exit aperture (7). An obturator (10) airtightly engages said passage, said obturator being movable from a first position, in which it indicates the presence of fluid at a pressure below a first predefined pressure threshold value, inside said cylinder, and a second position, in which it indicates the presence of fluid at a pressure above said first predefined pressure threshold value inside said cylinder. At least one temperature and/or pressure- sensitive relief device (12) is positioned in said obturator in such a way that, upon exceeding a predefined temperature threshold or upon exceeding a second predefined pressure threshold, said relief device opens the passage for the fluid and permits the flow of fluid from said entry aperture towards said exit aperture.

摘要翻译： 本发明涉及一种安全装置（1），特别是用于在压力下保持用于自推进气体系统的气态流体的气缸，包括装置主体（2,3），其中限定通道（8,40） 对于流体，所述通道从适于与所述气缸流体连通的入口孔（6）延伸到出口（7）。 闭塞器（10）与所述通道气密地接合，所述封闭器可从第一位置移动，在第一位置，所述闭塞器指示在所述气缸内部处于低于第一预定压力阈值的压力下的流体的存在，以及第二位置， 表示在所述气缸内的压力高于所述第一预定压力阈值的压力下存在流体。 至少一个温度和/或压敏释放装置（12）以这样的方式定位在所述闭塞器中，使得在超过预定温度阈值或超过第二预定压力阈值时，所述释放装置打开流体通道 并允许流体从所述入口孔流向所述出口孔。

公开(公告)号：WO2014138954A1

公开(公告)日：2014-09-18

申请号：PCT/CA2014/050185

申请日：2014-03-06

申请人： WESTPORT POWER INC.

发明人： WU, Ning ,  DUNN, Mark E.

IPC分类号： F02D19/06 ,  F01L1/34 ,  F02D13/02 ,  F02D41/34 ,  F02D41/40

CPC分类号： F02D41/221 ,  F02D13/0223 ,  F02D13/0234 ,  F02D19/0623 ,  F02D19/0642 ,  F02D41/0002 ,  F02D41/0025 ,  F02D41/1454 ,  F02D41/18 ,  F02D41/3094 ,  F02D2041/001 ,  F02D2200/021 ,  F02D2200/0414 ,  F02D2200/101 ,  Y02T10/18 ,  Y02T10/36 ,  Y02T10/42

摘要： A technique for fuel system protection for an internal combustion engine comprises determining direct fuel injector temperature as a function of engine operating parameters; and advancing intake valve timing when the temperature rises above a first predetermined value such that the temperature is maintained below a second predetermined value.

摘要翻译： 用于内燃机的燃料系统保护的技术包括根据发动机运行参数来确定直接燃料喷射器温度; 以及当温度升高到高于第一预定值以使得温度保持在第二预定值以下时，提升进气门正时。

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

申请人： WESTPORT POWER INC.

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

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

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

摘要： 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.

摘要翻译： 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。