-
1.发明申请
公开(公告)号：WO2013181753A1
公开(公告)日：2013-12-12
申请号：PCT/CA2013/050390
申请日：2013-05-22
Applicant: WESTPORT POWER INC.
Inventor： MELANSON, Bradley E. , MUMFORD, David K. , BLOMERUS, Paul M. , MCKINNON, Melissa S.A.
Abstract: There is an improved apparatus for supplying gaseous fuel from a liquid state to an internal combustion engine comprising an electrical energy generating apparatus for generating electrical energy from a store of chemical energy; a liquid pumping apparatus for pumping the gaseous fuel in the liquid state comprising an energy converter for converting the electrical energy to mechanical energy which drives the liquid pumping apparatus; a first heat exchanger for vaporizing the gaseous fuel received from the pumping apparatus; and a controller programmed to operate the liquid pumping apparatus to maintain a pressure of the gaseous fuel supplied to the internal combustion engine within a predetermined range.
Abstract translation: 有一种用于将气体燃料从液态供应到内燃机的改进装置，该内燃机包括用于从化学能储存产生电能的电能产生装置; 用于泵送处于液态的气态燃料的液体泵送装置，包括用于将电能转换成驱动液体泵送装置的机械能的能量转换器; 用于蒸发从所述泵送装置接收的气体燃料的第一热交换器; 以及控制器，其被编程为操作液体泵送装置以将供应到内燃机的气体燃料的压力保持在预定范围内。
-
公开(公告)号：WO2013071430A1
公开(公告)日：2013-05-23
申请号：PCT/CA2012/050805
申请日：2012-11-14
Applicant: WESTPORT POWER INC.
Inventor： HAAS, Jordan C. , LENNOX, Timothy N. , MUMFORD, David K. , PRITCHARD, B. Keir , TSUI, Mark
CPC classification number: F02M39/02 , F02D19/0605 , F02D19/0647 , F02D19/0678 , F02D19/0684 , F02D19/0689 , F02D19/0694 , F02D19/10 , F02M37/0052 , F02M43/02 , F02M59/38 , F02M63/0001 , F02M63/0265 , Y02T10/36
Abstract: An improved method and apparatus are provided for pumping fuel to a fuel injection system in an internal combustion engine. The method comprises steps of pumping a liquid fuel to a first pressure; using the liquid fuel at the first pressure as a hydraulic fluid for driving a gaseous fuel pump; and pumping a gaseous fuel to a second pressure with the gaseous fuel pump.
Abstract translation: 提供了一种用于将燃料泵送到内燃机中的燃料喷射系统的改进的方法和装置。 该方法包括将液体燃料泵送到第一压力的步骤; 使用在第一压力下的液体燃料作为驱动气体燃料泵的液压流体; 并用气体燃料泵将气体燃料泵送到第二压力。
-
3.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.
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。
-
公开(公告)号：WO2016145518A1
公开(公告)日：2016-09-22
申请号：PCT/CA2016/050276
申请日：2016-03-11
Applicant: WESTPORT POWER INC.
Inventor： WICKSTONE, Michael C. , MUMFORD, David K.
CPC classification number: F02D19/0694 , F02B7/02 , F02D19/0647 , F02D41/0025 , F02D41/0027 , F02D41/38 , F02D41/3836 , F02D2041/3881 , F02M21/0284 , F02M43/04 , F02M45/083 , F02M45/086 , F02M47/027 , F02M61/04 , Y02T10/32 , Y02T10/36
Abstract: Hydraulically actuated gaseous fuel injectors required a relatively small pressure bias between hydraulic fluid and gaseous fuel to be able to open and to reduce hydraulic fluid contamination of the gaseous fuel. An improved hydraulically actuated gaseous fuel injector includes an injection valve in fluid communication with a gaseous fuel inlet and includes a valve member reciprocatable within a fuel injector body between a closed position and an open position. There is a lift chamber in fluid communication with a hydraulic fluid inlet such that hydraulic fluid pressure in the lift chamber contributes to an opening force applied to the valve member. A control chamber is in fluid communication with the hydraulic fluid inlet such that hydraulic fluid pressure in the control chamber contributes to a closing force applied to the valve member. A control valve is operable to reduce hydraulic fluid pressure in the control chamber such that the opening force is greater than the closing force and the valve member moves to the open position.
Abstract translation: 液压致动的气体燃料喷射器需要液压流体和气体燃料之间的相对小的压力偏压才能打开并减少气态燃料的液压流体污染。 改进的液压致动气体燃料喷射器包括与气体燃料入口流体连通的喷射阀，并且包括在关闭位置和打开位置之间在燃料喷射器主体内可往复运动的阀构件。 存在与液压流体入口流体连通的提升室，使得提升室中的液压流体压力有助于施加到阀构件的打开力。 控制室与液压流体入口流体连通，使得控制室中的液压流体压力有助于施加到阀构件上的关闭力。 控制阀可操作以减小控制室中的液压流体压力，使得打开力大于闭合力，并且阀构件移动到打开位置。
-
Patent Agency Ranking
公开(公告)号：WO2017152280A1
公开(公告)日：2017-09-14
申请号：PCT/CA2017/050308
申请日：2017-03-07
Applicant: WESTPORT POWER INC.
Inventor： MUMFORD, David K.
Abstract: A pressure regulating module for regulating the pressure of a first fluid using a reference pressure of a second fluid. A pressure transfer assembly including a piston slidably disposed within a cylinder bore between a control fluid chamber and a reference fluid chamber is dimensioned to provide a predefined radial clearance between at least a portion of the outer side wall and the inner circumferential surface of the housing along a predefined axial length of the main body. The predefined radial clearance and predefined axial length are dimensioned to control the flow rate and amount of fluid along one or more fluid communication passages formed between at least a portion of the piston and the housing inner circumferential surface from one or more high pressure fluid zones to a lower pressure fluid zone which can include a leak and/or weep orifice directing fluid to a drain and/or vent circuit.
Abstract translation: 压力调节模块，用于使用第二流体的参考压力来调节第一流体的压力。 包括可滑动地设置在控制流体室和参考流体室之间的缸膛内的活塞的压力传递组件的尺寸被设计成沿着外侧壁的至少一部分和壳体的内周表面之间提供预定的径向间隙 主体的预定轴向长度。 预定的径向间隙和预定的轴向长度被设定尺寸以控制沿着在活塞的至少一部分和壳体内圆周表面之间形成的一个或多个流体连通通道的流体流量和流量从一个或多个高压流体区到 较低压力的流体区域，其可以包括将流体引导至排放和/或排放回路的泄漏和/或泄漏孔。
-
6.发明申请APPARATUS FOR REDUCING PRESSURE PULSATIONS IN A GASEOUS FUELLED INTERNAL COMBUSTION ENGINE 审中-公开降低燃气内燃机发动机压力脉冲的装置
公开(公告)号：WO2016090497A1
公开(公告)日：2016-06-16
申请号：PCT/CA2015/051315
申请日：2015-12-11
Applicant: WESTPORT POWER INC.
Inventor： SINGH, Ashish , TOUCHETTE, Alain M. J. , MUMFORD, David K. , LI, Guowei , WICKSTONE, Michael C. , DICKEN, Christopher J. B.
CPC classification number: F02M21/0239 , F02D19/0689 , F02D19/0694 , F02D19/10 , F02M21/0263 , F02M43/04 , F02M2200/315 , Y02T10/32 , Y02T10/36
Abstract: An improved body defining a restricted fluid flow passage in a fuel supply system for delivering a gaseous fuel to an internal combustion engine. The body is formed for installation between and fluidly connecting a gaseous fuel supply conduit and a gaseous fuel flow passage that defines a predetermined volume between the restricted fluid flow passage and a nozzle chamber of a fuel injector from which the gaseous fuel is injected into the internal combustion engine. The restricted fluid flow passage has the smallest effective flow area between the gaseous fuel supply conduit and the nozzle chamber. The restricted fluid flow passage is located a predetermined distance from an injection valve seal within the fuel injector. The predetermined distance is calculated as a function of the speed of sound in the gaseous fuel and an opened time of the fuel injector.
Abstract translation: 一种在燃料供应系统中限定流体流动通道的改进的主体，用于将气体燃料输送到内燃机。 主体被形成用于安装在气体燃料供应管道和气体燃料流动通道之间，并且气体燃料流动通道在受限制的流体流动通道和燃料喷射器的喷嘴腔室之间限定预定的容积，气体燃料从喷射器喷射到内部 内燃机。 限制流体流动通道在气体燃料供应管道和喷嘴室之间具有最小的有效流动面积。 限制流体流动通道位于距燃料喷射器内的喷射阀密封件预定距离处。 根据气体燃料中的声速和燃料喷射器的打开时间来计算预定距离。
-
公开(公告)号：WO2015154183A1
公开(公告)日：2015-10-15
申请号：PCT/CA2015/050284
申请日：2015-04-08
Applicant: WESTPORT POWER INC.
Inventor： GOUDIE, Dale W. , MUMFORD, David K.
CPC classification number: F02D19/08 , F02D19/0692 , F02D19/0694 , F02D41/0025 , F02D41/0027 , F02M43/00 , F02M43/04 , F02M45/04 , F02M45/08 , Y02T10/36
Abstract: A multi-fuel injection system and method for an internal combustion engine comprises a first fuel injector having a flow area sized for accurate and consistent injection of a pilot amount of a first fuel directly into a combustion chamber, and a 5 second fuel injector in selective communication with a supply of the first fuel and a supply of a second fuel, the second fuel injector having a flow area sized to accommodate injection the first fuel directly into the combustion chamber in amounts required to deliver enough energy to enable operation across a range of engine operating conditions, including high load conditions, with only the first fuel supplied 10 as fuel to the combustion chamber. When the second fuel injector is supplied with the second fuel, it is operable for late-cycle injection of a portion of the second fuel that is required to operate said engine at high load.
Abstract translation: 一种用于内燃机的多燃料喷射系统和方法，包括：第一燃料喷射器，其具有流动面积，该流动面积的尺寸适于将先导量的第一燃料直接喷射到燃烧室中;以及5秒的选择性燃料喷射器 与第一燃料的供应和第二燃料的供应的通信，所述第二燃料喷射器具有流动面积，其尺寸适于容纳将第一燃料直接喷射到燃烧室中的量，以达到递送足够的能量以使得能够在一 发动机工作条件，包括高负载条件，只有第一个燃料10作为燃料供应到燃烧室。 当第二燃料喷射器被供给第二燃料时，其可操作用于在高负荷下操作所述发动机所需的第二燃料的一部分的后期循环喷射。
-
公开(公告)号：WO2014053061A1
公开(公告)日：2014-04-10
申请号：PCT/CA2013/050745
申请日：2013-10-02
Applicant: WESTPORT POWER INC.
Inventor： MELANSON, Bradley E. , MUMFORD, David K. , BLOMERUS, Paul M. , MCKINNON, Melissa S.A.
CPC classification number: F02M21/0287 , F01P2060/18 , F02B63/06 , F02B73/00 , F02D25/00 , F02G5/00 , F02G5/04 , F02M21/0245 , F02M21/06 , F02M31/125 , F02M31/166 , F02M31/18 , F02N19/10 , Y02T10/126 , Y02T10/16 , Y02T10/32 , Y02T30/16
Abstract: There is an improved method for supplying gaseous fuel from a liquid state to an internal combustion engine comprising employing a second internal combustion engine as a source of energy; pumping the gaseous fuel in the liquid state by transforming energy from the source of energy into mechanical work for the pumping; exchanging waste heat from the second internal combustion engine in a first heat exchange fluid circulating through the second internal combustion engine to a second heat exchange fluid; vaporizing the gaseous fuel pumped from the liquid state with heat from the second heat exchange fluid; and delivering the gaseous fuel vaporized from the liquid state to the internal combustion engine; wherein a pressure of the gaseous fuel delivered to the internal combustion engine is maintained within a predetermined range of tolerance by the pumping.
Abstract translation: 一种用于将气态燃料从液态供应到内燃机的改进方法，包括采用第二内燃机作为能量源; 通过将来自能量源的能量转换成用于泵送的机械作业来泵送处于液态的气态燃料; 在通过所述第二内燃机循环的第一热交换流体中将来自所述第二内燃机的废热换成第二热交换流体; 使来自第二热交换流体的热量从液体状态泵出的气体燃料蒸发; 以及将从所述液态蒸发的所述气态燃料输送到所述内燃机; 其中输送到内燃机的气体燃料的压力通过泵送保持在预定的公差范围内。
-
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
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。
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.011 seconds)
