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1.发明申请REDUCING UNBURNED HYDROCARBON EMISSIONS IN GASEOUS FUELLED LEAN-BURN ENGINES 审中-公开在气体燃烧的灼热发动机中减少未燃烧的碳氢化合物排放
公开(公告)号：WO2016127254A1
公开(公告)日：2016-08-18
申请号：PCT/CA2016/050122
申请日：2016-02-10
Applicant: WESTPORT POWER INC.
Inventor： HILL, Philip G. , PATYCHUK, Bronson D. , MCTAGGART-COWAN, Gordon P. , WU, Ning
CPC classification number: F02D41/0027 , F02D13/0211 , F02D15/00 , F02D41/0007 , F02D41/006 , F02D2041/001 , F02M21/0215 , F02M21/0275 , F02M21/0284 , Y02T10/144 , Y02T10/18 , Y02T10/32
Abstract: It is a challenge to reduce unburned hydrocarbon emissions for gaseous fuelled engines, especially at low engine load conditions, to meet demanding emission regulation targets. A method for reducing unburned hydrocarbon emissions in a lean- burn internal combustion engine that is fuelled with a gaseous fuel comprises adjusting the timing for closing of an intake valve as a function of engine operating conditions by one of advancing timing for closing of the intake valve and closing the intake valve earlier during an intake stroke; and retarding timing for closing of the intake valve and closing the intake valve later during a compression stroke. The volumetric efficiency of the internal combustion engine is reduced and unburned hydrocarbon emissions are maintained below a predetermined level.
Abstract translation: 减少气体燃料发动机的未燃烧碳氢化合物排放是困难的，特别是在低发动机负荷条件下，以满足苛刻的排放调节目标。 一种用于减少用燃气燃料燃烧的贫燃燃烧内燃机中的未燃碳氢化合物排放的方法，包括通过关闭进气阀的前进时间之一来调节作为发动机运行条件的函数关闭进气门的正时 并且在进气冲程期间更早地关闭进气门; 以及在压缩冲程期间稍后关闭进气门并关闭进气门的延迟正时。 内燃机的容积效率降低，未燃碳氢化合物排放量维持在预定水平以下。
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2.发明申请GASEOUS-FUELLED STOICHIOMETRIC COMPRESSION IGNITION INTERNAL COMBUSTION ENGINE 审中-公开气体燃烧式压电式点火点火内燃机
公开(公告)号：WO2012021990A1
公开(公告)日：2012-02-23
申请号：PCT/CA2011/050495
申请日：2011-08-12
Applicant: WESTPORT POWER INC. , MUNSHI, Sandeep , WELCH, Alan B. , MCTAGGART-COWAN, Gordon P.
Inventor： MUNSHI, Sandeep , WELCH, Alan B. , MCTAGGART-COWAN, Gordon P.
CPC classification number: B60T7/20 , B60T1/06 , B62D63/08 , F01N3/101 , F02B7/06 , F02B7/08 , F02B43/10 , F02B2043/103 , F02D19/0689 , F02D19/0692 , F02D19/10 , F02D41/0002 , F02D41/0025 , F02D41/005 , F02D41/30 , F02D41/3047 , F02D41/3094 , F02D41/402 , F02D2041/0017 , F02D2041/389 , F02M26/00 , Y02T10/22 , Y02T10/32 , Y02T10/36 , Y02T10/44
Abstract: In a gaseous-fuelled stoichiometric compression ignition internal combustion engine, a pilot fuel is injected directly into the combustion chamber to help initiate a multi-point ignition. The engine provides performance improvements approaching those of high pressure direct injection engines but with less complexity because the gaseous fuel is introduced into the intake air subsystem at relatively low pressure and as a result of the stoichiometric combustion, the low oxygen content in the combustion products exiting the combustion chamber allows the use of a three-way catalyst instead of other after treatment arrangements normally associated with conventional compression ignition engines that require the addition of a reductant.
Abstract translation: 在气体燃料化学计量压缩点火内燃机中，引燃燃料直接喷入燃烧室以帮助启动多点点火。 发动机提供了接近高压直喷式发动机的性能改进，但是由于气体燃料在相对较低的压力下被引入进气系统中，并且由于化学计量燃烧，燃烧产物中的低氧含量离开 燃烧室允许使用三元催化剂代替通常与需要添加还原剂的常规压燃式发动机相关联的其它后处理装置。
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3.发明申请METHOD AND SYSTEM FOR OPERATING GASEOUS-FUELLED DIRECT INJECTION INTERNAL COMBUSTION ENGINE 审中-公开气体直接喷射内燃机的运行方法和系统
公开(公告)号：WO2015139134A1
公开(公告)日：2015-09-24
申请号：PCT/CA2015/050204
申请日：2015-03-19
Applicant: WESTPORT POWER INC.
Inventor： MCTAGGART-COWAN, Gordon P. , MANN, Kenneth R. , HUANG, Jian , MUNSHI, Sandeep
CPC classification number: F02D19/022 , F02B43/00 , F02D19/024 , F02D35/023 , F02D41/0007 , F02D41/0027 , F02D41/0052 , F02D41/1461 , F02D41/38 , F02D41/401 , F02D2041/389 , F02D2250/31 , F02M21/0218 , F02M21/0275 , Y02T10/32 , Y02T10/47
Abstract: A method for operating a gaseous-fuelled internal combustion engine by directly injecting the gaseous fuel into the combustion chamber is disclosed wherein the gaseous fuel is injected at injection pressures higher than 300 bar and the pressure ratio between the gaseous fuel injection pressure and the peak cylinder pressure is between 1.6: 1 and 3: 1, and preferably between 2.5: 1 to 2.8: 1. The injection pressure is selected to be between 300 and 540 bar and preferably between 300 bar and 440 bar. The injection pressure can be selected based on a preferred range for the pressure ratio.
Abstract translation: 公开了一种通过将气体燃料直接喷射到燃烧室来操作气体燃料内燃机的方法，其中气体燃料在高于300巴的注射压力下喷射，气体燃料喷射压力和峰值气缸之间的压力比 压力在1.6:1和3:1之间，优选在2.5:1至2.8:1之间。注射压力选择在300至540巴之间，优选在300巴与440巴之间。 可以基于压力比的优选范围来选择注射压力。
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4.发明申请
公开(公告)号：WO2015095955A1
公开(公告)日：2015-07-02
申请号：PCT/CA2014/051219
申请日：2014-12-16
Applicant: WESTPORT POWER INC.
Inventor： FEI, Wei , WALKER, James D. , MCTAGGART-COWAN, Gordon P. , MANN, Kenneth R.
CPC classification number: F02D19/061 , F02B43/00 , F02D19/0689 , F02D19/0694 , F02D19/10 , F02D35/025 , F02D41/0025 , F02D41/0027 , F02D41/3011 , F02D41/3064 , F02D41/401 , F02D41/403 , Y02T10/36 , Y02T10/44
Abstract: Emission targets, such as NOx levels, for gaseous fuelled internal combustion engines that burn a gaseous fuel in a diffusion combustion mode are increasingly more challenging to achieve. A method of fuel injection for an internal combustion engine fuelled with a gaseous fuel comprises introducing a first amount of pilot fuel in a first stage of fuel injection; introducing a first amount of main fuel (the gaseous fuel) in a second stage of fuel injection; and introducing a second amount of main fuel in a third stage of fuel injection. The first and second amounts of main fuel contribute to load and speed demand of the internal combustion engine. Engine maps calibrated for different engine performance can be employed in different regions of the load and speed range of the engine. The engine maps are blended when the engine transitions between two regions; and momentary excursions into different regions do not change the engine calibration.
Abstract translation: 对于在扩散燃烧模式中燃烧气体燃料的气态燃料内燃机的排放目标，例如NOx水平，越来越难以实现。 用于燃料燃料的内燃机的燃料喷射方法包括在燃料喷射的第一阶段引入第一量的引燃燃料; 在燃料喷射的第二阶段引入第一量的主要燃料（气体燃料）; 以及在第三级燃料喷射中引入第二量的主燃料。 第一和第二量的主要燃料有助于内燃机的负载和速度需求。 针对不同发动机性能进行校准的发动机地图可用于发动机负载和速度范围的不同区域。 当发动机在两个区域之间转换时，发动机地图混合; 不同地区的瞬间游览不会改变发动机校准。
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Patent Agency Ranking5.发明公开REDUCING UNBURNED HYDROCARBON EMISSIONS IN GASEOUS FUELLED LEAN-BURN ENGINES 审中-公开减少气体燃料贫火燃烧器中的未燃烧油气排放
公开(公告)号：EP3256704A1
公开(公告)日：2017-12-20
申请号：EP16748515.0
申请日：2016-02-10
Applicant: Westport Power Inc.
Inventor： HILL, Philip G. , PATYCHUK, Bronson D. , MCTAGGART-COWAN, Gordon P. , WU, Ning
CPC classification number: F02D41/0027 , F02D13/0211 , F02D15/00 , F02D41/0007 , F02D41/006 , F02D2041/001 , F02M21/0215 , F02M21/0275 , F02M21/0284 , Y02T10/144 , Y02T10/18 , Y02T10/32
Abstract: It is a challenge to reduce unburned hydrocarbon emissions for gaseous fuelled engines, especially at low engine load conditions, to meet demanding emission regulation targets. A method for reducing unburned hydrocarbon emissions in a lean-burn internal combustion engine that is fuelled with a gaseous fuel comprises adjusting the timing for closing of an intake valve as a function of engine operating conditions by one of advancing timing for closing of the intake valve and closing the intake valve earlier during an intake stroke; and retarding timing for closing of the intake valve and closing the intake valve later during a compression stroke. The volumetric efficiency of the internal combustion engine is reduced and unburned hydrocarbon emissions are maintained below a predetermined level.
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6.发明公开
公开(公告)号：EP2606215A1
公开(公告)日：2013-06-26
申请号：EP11817623.9
申请日：2011-08-12
Applicant: Westport Power Inc.
Inventor： MUNSHI, Sandeep , WELCH, Alan B. , MCTAGGART-COWAN, Gordon P.
CPC classification number: B60T7/20 , B60T1/06 , B62D63/08 , F01N3/101 , F02B7/06 , F02B7/08 , F02B43/10 , F02B2043/103 , F02D19/0689 , F02D19/0692 , F02D19/10 , F02D41/0002 , F02D41/0025 , F02D41/005 , F02D41/30 , F02D41/3047 , F02D41/3094 , F02D41/402 , F02D2041/0017 , F02D2041/389 , F02M26/00 , Y02T10/22 , Y02T10/32 , Y02T10/36 , Y02T10/44
Abstract: In a gaseous-fuelled stoichiometric compression ignition internal combustion engine, a pilot fuel is injected directly into the combustion chamber to help initiate a multi-point ignition. The engine provides performance improvements approaching those of high pressure direct injection engines but with less complexity because the gaseous fuel is introduced into the intake air subsystem at relatively low pressure and as a result of the stoichiometric combustion, the low oxygen content in the combustion products exiting the combustion chamber allows the use of a three-way catalyst instead of other after treatment arrangements normally associated with conventional compression ignition engines that require the addition of a reductant.
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7.发明公开
公开(公告)号：EP3845752A1
公开(公告)日：2021-07-07
申请号：EP20206054.7
申请日：2015-03-19
Applicant: Westport Power Inc.
Inventor： MCTAGGART-COWAN, Gordon P. , MANN, Kenneth R. , HUANG, Jian , MUNSHI, Sandeep
Abstract: A method for operating a gaseous-fuelled internal combustion engine by directly injecting the gaseous fuel into the combustion chamber is disclosed wherein the gaseous fuel is injected at injection pressures higher than 300 bar and the pressure ratio between the gaseous fuel injection pressure and the peak cylinder pressure is between 1.6:1 and 3:1, and preferably between 2.5:1 to 2.8:1. The injection pressure is selected to be between 300 and 540 bar and preferably between 300 bar and 440 bar. The injection pressure can be selected based on a preferred range for the pressure ratio.
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8.发明公开METHOD AND SYSTEM FOR OPERATING GASEOUS-FUELLED DIRECT INJECTION INTERNAL COMBUSTION ENGINE 审中-公开用于操作气体的方法和系统燃料内燃机直接进
公开(公告)号：EP3120005A1
公开(公告)日：2017-01-25
申请号：EP15765262.9
申请日：2015-03-19
Applicant: Westport Power Inc.
Inventor： MCTAGGART-COWAN, Gordon P. , MANN, Kenneth R. , HUANG, Jian , MUNSHI, Sandeep
CPC classification number: F02D19/022 , F02B43/00 , F02D19/024 , F02D35/023 , F02D41/0007 , F02D41/0027 , F02D41/0052 , F02D41/1461 , F02D41/38 , F02D41/401 , F02D2041/389 , F02D2250/31 , F02M21/0218 , F02M21/0275 , Y02T10/32 , Y02T10/47
Abstract: A method for operating a gaseous-fuelled internal combustion engine by directly injecting the gaseous fuel into the combustion chamber is disclosed wherein the gaseous fuel is injected at injection pressures higher than 300 bar and the pressure ratio between the gaseous fuel injection pressure and the peak cylinder pressure is between 1.6: 1 and 3: 1, and preferably between 2.5: 1 to 2.8: 1. The injection pressure is selected to be between 300 and 540 bar and preferably between 300 bar and 440 bar. The injection pressure can be selected based on a preferred range for the pressure ratio.
Abstract translation: 一种用于通过将气体燃料直接喷射到燃烧室中操作气体燃料内燃机的方法是圆盘游离缺失worin气态燃料在喷射压力喷射高于300巴，气体燃料喷射压力和峰值气缸之间的压力比 压力是1.6之间：第一：1，优选在2.5：1至2.8和3 1 注射压力被选择为300之间和540巴，且优选在300巴和440巴。 喷射压力可以基于针对所述压力比的优选范围内选择。
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9.发明公开
公开(公告)号：EP3094848A1
公开(公告)日：2016-11-23
申请号：EP14873596.2
申请日：2014-12-16
Applicant: Westport Power Inc.
Inventor： FEI, Wei , WALKER, James D. , MCTAGGART-COWAN, Gordon P. , MANN, Kenneth R.
CPC classification number: F02D19/061 , F02B43/00 , F02D19/0689 , F02D19/0694 , F02D19/10 , F02D35/025 , F02D41/0025 , F02D41/0027 , F02D41/3011 , F02D41/3064 , F02D41/401 , F02D41/403 , Y02T10/36 , Y02T10/44
Abstract: Emission targets, such as NOx levels, for gaseous fuelled internal combustion engines that burn a gaseous fuel in a diffusion combustion mode are increasingly more challenging to achieve. A method of fuel injection for an internal combustion engine fuelled with a gaseous fuel comprises introducing a first amount of pilot fuel in a first stage of fuel injection; introducing a first amount of main fuel (the gaseous fuel) in a second stage of fuel injection; and introducing a second amount of main fuel in a third stage of fuel injection. The first and second amounts of main fuel contribute to load and speed demand of the internal combustion engine. Engine maps calibrated for different engine performance can be employed in different regions of the load and speed range of the engine. The engine maps are blended when the engine transitions between two regions; and momentary excursions into different regions do not change the engine calibration.
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