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1.发明申请公开(公告)号：US20160017845A1
公开(公告)日：2016-01-21
申请号：US14738837
申请日：2015-06-13
申请人： Westport Power Inc.
IPC分类号： F02M21/02 , F02B43/12 , F02B37/04 , F02B63/04 , H02K7/18 , F02D41/00 , F02D41/22 , F02B39/04 , F02M21/04 , F02B33/44 , F02B29/04 , F02D41/38
CPC分类号： F02M21/0245 , F02B29/04 , F02B33/44 , F02B37/04 , F02B39/04 , F02B43/10 , F02B43/12 , F02B47/08 , F02B63/04 , F02D41/0027 , F02D41/22 , F02D41/38 , F02D2041/224 , F02D2041/389 , F02M21/0209 , F02M21/0218 , F02M21/0221 , F02M21/0275 , F02M21/0287 , F02M21/04 , F02M67/02 , H02K7/1815 , H02K7/1823 , Y02T10/144 , Y02T10/146 , Y02T10/32
摘要： A method for introducing a gaseous fuel into a combustion chamber of an internal combustion engine includes forming a non-ignitable mixture of the gaseous fuel and a gas including oxygen in a predefined mixture mass ratio within a predetermined range of tolerance having a pressure suitable for directly introducing the non-ignitable mixture into the combustion chamber during at least the compression stroke; and introducing the non-ignitable mixture directly into the combustion chamber.
摘要翻译： 将气体燃料引入内燃机的燃烧室的方法包括在预定的容许范围内以预定的混合物质量比形成气体燃料和包括氧的气体的不可燃混合物，其具有适合直接的压力 在至少压缩冲程期间将不可燃混合物引入燃烧室; 并将不可燃混合物直接引入燃烧室。
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公开(公告)号：US10450970B2
公开(公告)日：2019-10-22
申请号：US15568425
申请日：2016-04-22
申请人： WESTPORT POWER INC.
发明人： Jian Huang , Kevin Lee
IPC分类号： F02D41/00 , F02D35/02 , F02D41/22 , F02D19/10 , F02D19/06 , G01M15/11 , F02D19/08 , F02D41/14 , F02D41/40 , F02D43/04 , F02P5/152
摘要： Premixed engines including dual fuel engines can experience abnormal combustion characteristics including misfire, pre-ignition and knock. A method for detecting and mitigating abnormal combustion in an engine comprises sensing frequency components of an acoustic signal associated with a combustion chamber during a combustion cycle, the frequency components representative of at least one of a normal and an abnormal combustion characteristic; determining an in-cylinder pressure signal as a function of the acoustic signal; calculating as functions of the in-cylinder pressure signal at least one of a knock index, a gross indicated mean effective pressure and a start of combustion timing; detecting the abnormal combustion characteristic is at least one of (a) a misfire event when the gross indicated mean effective pressure is less than a predetermined mean effective pressure value; (b) a pre-ignition event when the start of combustion timing is advanced of a start of ignition timing; and (c) an engine knock event when the knock index is greater than a predetermined knock value; and performing a mitigation strategy for the detected abnormal combustion characteristic.
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公开(公告)号：US10519888B2
公开(公告)日：2019-12-31
申请号：US14775536
申请日：2014-03-11
申请人： WESTPORT POWER INC.
发明人： Jian Huang , Sandeep Munshi
摘要： 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.
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4.发明申请公开(公告)号：US20170130657A1
公开(公告)日：2017-05-11
申请号：US15127774
申请日：2015-03-19
申请人： Westport Power Inc.
CPC分类号： 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
摘要： 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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公开(公告)号：US09938888B2
公开(公告)日：2018-04-10
申请号：US14916952
申请日：2014-08-27
申请人： Westport Power Inc.
发明人： Jian Huang , Dale W. Goudie
CPC分类号： F02B23/0624 , F02B23/0651 , F02B23/0663 , F02B23/0669 , F02B23/0672 , F02B23/0693 , F02B23/101 , F02B43/00 , F02D19/0686 , F02D19/0694 , F02D19/10 , F02M21/0263 , F02M21/0275 , F02M21/0284 , Y02T10/125 , Y02T10/32 , Y02T10/36
摘要： Gaseous fuel injection pressures are normally less than liquid fuel injection pressures, resulting in reduced gaseous fuel jet momentum and mixing. A combustion system for an internal combustion engine comprises an intake port and valve, a cylinder and a piston that cooperate to provide a quiescent combustion chamber. The piston includes a re-entrant type piston bowl comprising an outer periphery and a protuberance emanating from the outer periphery. A fuel injector is configured to directly introduce a gaseous fuel into the combustion chamber and an ignition source is provided for igniting the gaseous fuel. A controller actuates the fuel injector such that a gaseous fuel jet is directed towards and splits upon impacting the protuberance forming first and second fuel plumes. The first fuel plume is redirected towards a first mixing zone adjacent a cylinder head and the second fuel plume redirected towards a second mixing zone adjacent the piston bowl.
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6.发明申请公开(公告)号：US20150020769A1
公开(公告)日：2015-01-22
申请号：US14452728
申请日：2014-08-06
申请人： Westport Power Inc.
CPC分类号： F02D19/061 , F02B7/08 , F02B23/0639 , F02B23/0654 , F02B23/0669 , F02B2023/103 , F02D19/024 , F02D19/0644 , F02D19/0647 , F02D19/0692 , F02D19/10 , F02D41/0027 , F02D41/3827 , F02D41/403 , F02M21/0215 , F02M21/0263 , F02M21/0269 , F02M21/0275 , F02M21/06 , F02M43/04 , F02M45/086 , F02M53/046 , F02M61/08 , F02M61/1813 , F02M61/182 , F02M61/1826 , F02P19/026 , Y02T10/125 , Y02T10/32 , Y02T10/36 , Y02T10/44
摘要： An apparatus and method for igniting a gaseous fuel directly introduced into a combustion chamber of an internal combustion engine comprises steps of heating a space near a fuel injector nozzle; introducing a pilot amount of the gaseous fuel in the combustion chamber during a first stage injection event; controlling residency of the pilot amount in the space such that a temperature of the pilot amount increases to an auto-ignition temperature of the gaseous fuel whereby ignition occurs; introducing a main amount of the gaseous fuel during a second stage injection event after the first stage injection event; and using heat from combustion of the pilot amount to ignite the main amount.
摘要翻译： 用于点燃直接引入内燃机的燃烧室中的气体燃料的装置和方法包括加热燃料喷射器喷嘴附近的空间的步骤; 在第一阶段注入事件期间在燃烧室中引入先导量的气态燃料; 控制所述导引量在所述空间中的驻留，使得所述先导量的温度升高到所述气体燃料的自燃温度，从而发生点火; 在第一阶段注入事件之后的第二阶段注入事件期间引入主要量的气体燃料; 并利用引燃量燃烧的热量点燃主要量。
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公开(公告)号：US10233871B2
公开(公告)日：2019-03-19
申请号：US14738837
申请日：2015-06-13
申请人： Westport Power Inc.
IPC分类号： F02B43/00 , F02M21/02 , F02M67/02 , F02B29/04 , F02B33/44 , F02B37/04 , F02B39/04 , F02B43/12 , F02B63/04 , F02D41/00 , F02D41/22 , F02D41/38 , F02M21/04 , H02K7/18 , F02B43/10 , F02B47/08
摘要： A method for introducing a gaseous fuel into a combustion chamber of an internal combustion engine includes forming a non-ignitable mixture of the gaseous fuel and a gas including oxygen in a predefined mixture mass ratio within a predetermined range of tolerance having a pressure suitable for directly introducing the non-ignitable mixture into the combustion chamber during at least the compression stroke; and introducing the non-ignitable mixture directly into the combustion chamber.
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8.发明授权公开(公告)号：US10167786B2
公开(公告)日：2019-01-01
申请号：US15127774
申请日：2015-03-19
申请人： Westport Power Inc.
IPC分类号： F02D19/02 , F02D35/02 , F02B43/00 , F02D41/40 , F02D41/00 , F02D41/38 , F02M21/02 , F02D41/14
摘要： 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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9.发明授权公开(公告)号：US09790868B2
公开(公告)日：2017-10-17
申请号：US14452728
申请日：2014-08-06
申请人： Westport Power Inc.
IPC分类号： F02D19/06 , F02B7/08 , F02B23/06 , F02D19/02 , F02D41/00 , F02D41/40 , F02M21/02 , F02D41/38 , F02P19/02 , F02M45/08 , F02M61/08 , F02M61/18 , F02M43/04 , F02M53/04 , F02D19/10 , F02M21/06 , F02B23/10
CPC分类号： F02D19/061 , F02B7/08 , F02B23/0639 , F02B23/0654 , F02B23/0669 , F02B2023/103 , F02D19/024 , F02D19/0644 , F02D19/0647 , F02D19/0692 , F02D19/10 , F02D41/0027 , F02D41/3827 , F02D41/403 , F02M21/0215 , F02M21/0263 , F02M21/0269 , F02M21/0275 , F02M21/06 , F02M43/04 , F02M45/086 , F02M53/046 , F02M61/08 , F02M61/1813 , F02M61/182 , F02M61/1826 , F02P19/026 , Y02T10/125 , Y02T10/32 , Y02T10/36 , Y02T10/44
摘要： An apparatus and method for igniting a gaseous fuel directly introduced into a combustion chamber of an internal combustion engine comprises steps of heating a space near a fuel injector nozzle; introducing a pilot amount of the gaseous fuel in the combustion chamber during a first stage injection event; controlling residency of the pilot amount in the space such that a temperature of the pilot amount increases to an auto-ignition temperature of the gaseous fuel whereby ignition occurs; introducing a main amount of the gaseous fuel during a second stage injection event after the first stage injection event; and using heat from combustion of the pilot amount to ignite the main amount.
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10.发明申请公开(公告)号：US20160186673A9
公开(公告)日：2016-06-30
申请号：US14452728
申请日：2014-08-06
申请人： Westport Power Inc.
CPC分类号： F02D19/061 , F02B7/08 , F02B23/0639 , F02B23/0654 , F02B23/0669 , F02B2023/103 , F02D19/024 , F02D19/0644 , F02D19/0647 , F02D19/0692 , F02D19/10 , F02D41/0027 , F02D41/3827 , F02D41/403 , F02M21/0215 , F02M21/0263 , F02M21/0269 , F02M21/0275 , F02M21/06 , F02M43/04 , F02M45/086 , F02M53/046 , F02M61/08 , F02M61/1813 , F02M61/182 , F02M61/1826 , F02P19/026 , Y02T10/125 , Y02T10/32 , Y02T10/36 , Y02T10/44
摘要： An apparatus and method for igniting a gaseous fuel directly introduced into a combustion chamber of an internal combustion engine comprises steps of heating a space near a fuel injector nozzle; introducing a pilot amount of the gaseous fuel in the combustion chamber during a first stage injection event; controlling residency of the pilot amount in the space such that a temperature of the pilot amount increases to an auto-ignition temperature of the gaseous fuel whereby ignition occurs; introducing a main amount of the gaseous fuel during a second stage injection event after the first stage injection event; and using heat from combustion of the pilot amount to ignite the main amount.
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