Method and apparatus for controlling operation of dual mode HCCI engines
    1.
    发明授权
    Method and apparatus for controlling operation of dual mode HCCI engines 有权
    控制双模HCCI发动机运行的方法和装置

    公开(公告)号:US07258104B2

    公开(公告)日:2007-08-21

    申请号:US11372715

    申请日:2006-03-10

    IPC分类号: F02B15/00 F01L9/04

    摘要: An intake and exhaust system for a dual mode HCCI engine, which provides superior intake temperature control and homogeneity for engine operation in SI and HCCI modes, as well as during transition between SI and HCCI modes and vice-versa. The system includes adjusted intake cam movement event lengths for intake valve operation at specified modes of operation. The system further includes at least one cam profile switching device operatively connected to intake and exhaust valves in an engine for controlling event length, maximum lift, and valve opening/closing timings for the intake and exhaust valves. The system yet further includes a bifurcated intake system and camless valve actuators for controlling intake valves for facilitating operation in SI or HCCI modes, as well as transition between SI and HCCI modes and vice-versa.

    摘要翻译: 用于双模HCCI发动机的进气和排气系统,其在SI和HCCI模式中以及在SI和HCCI模式之间的转换期间提供优异的进气温度控制和均匀性,反之亦然。 该系统包括在特定操作模式下进气门操作的调节进气凸轮运动事件长度。 该系统还包括至少一个凸轮轮廓切换装置,其可操作地连接到发动机中的进气和排气阀,用于控制进气门和排气门的事件长度,最大升程和开阀/关闭时间。 该系统还包括分叉进气系统和无凸轮阀致动器,用于控制进气门以便于SI或HCCI模式中的操作,以及SI和HCCI模式之间的转换,反之亦然。

    Method and apparatus for controlling operation of dual mode HCCI engines
    2.
    发明申请
    Method and apparatus for controlling operation of dual mode HCCI engines 有权
    控制双模HCCI发动机运行的方法和装置

    公开(公告)号:US20060150952A1

    公开(公告)日:2006-07-13

    申请号:US11372715

    申请日:2006-03-10

    IPC分类号: F01L9/04 F02B15/00

    摘要: An intake and exhaust system for a dual mode HCCI engine, which provides superior intake temperature control and homogeneity for engine operation in SI and HCCI modes, as well as during transition between SI and HCCI modes and vice-versa. The system includes adjusted intake cam movement event lengths for intake valve operation at specified modes of operation. The system further includes at least one cam profile switching device operatively connected to intake and exhaust valves in an engine for controlling event length, maximum lift, and valve opening/closing timings for the intake and exhaust valves. The system yet further includes a bifurcated intake system and camless valve actuators for controlling intake valves for facilitating operation in SI or HCCI modes, as well as transition between SI and HCCI modes and vice-versa.

    摘要翻译: 用于双模HCCI发动机的进气和排气系统,其在SI和HCCI模式中以及在SI和HCCI模式之间的转换期间提供优异的进气温度控制和均匀性,反之亦然。 该系统包括在特定操作模式下进气门操作的调节进气凸轮运动事件长度。 该系统还包括至少一个凸轮轮廓切换装置,其可操作地连接到发动机中的进气和排气阀,用于控制进气门和排气门的事件长度,最大升程和开阀/关闭时间。 该系统还包括分叉进气系统和无凸轮阀致动器,用于控制进气门以便于SI或HCCI模式中的操作,以及SI和HCCI模式之间的转换,反之亦然。

    Variable intake valve and exhaust valve timing strategy for improving performance in a hydrogen fueled engine
    3.
    发明授权
    Variable intake valve and exhaust valve timing strategy for improving performance in a hydrogen fueled engine 有权
    用于改善氢燃料发动机性能的可变进气门和排气门正时策略

    公开(公告)号:US07487750B2

    公开(公告)日:2009-02-10

    申请号:US11289804

    申请日:2005-11-29

    摘要: A method for a hydrogen fueled internal combustion engine to reduce backfiring, pre-ignition, and/or backflash, the engine also including a combustion chamber, an intake manifold, an exhaust manifold, at least one intake valve, at least one exhaust valve, a hydrogen injector, a compression device, and a variable valve timing system coupled to the intake valves. The method comprises compressing air using the compression device; injecting hydrogen and mixing at least said hydrogen with air discharged from the compression device; and opening the intake valve to induct at least air into the combustion chamber, wherein the intake valve opening time varies with an operating condition.

    摘要翻译: 一种用于减少后燃,预点火和/或反吹的氢燃料内燃机的方法,所述发动机还包括燃烧室,进气歧管,排气歧管,至少一个进气阀,至少一个排气阀, 氢气喷射器,压缩装置以及与进气门连接的可变气门正时系统。 该方法包括使用压缩装置压缩空气; 注入氢气并将至少所述氢气与从压缩装置排出的空气混合; 并且打开所述进气门至少将空气引入所述燃烧室,其中所述进气门打开时间随着运行状态而变化。

    Injection strategy to maximize efficiency in gaseous engine
    4.
    发明授权
    Injection strategy to maximize efficiency in gaseous engine 有权
    注射策略使气体发动机效率最大化

    公开(公告)号:US07377267B2

    公开(公告)日:2008-05-27

    申请号:US11554531

    申请日:2006-10-30

    IPC分类号: F02B43/00

    摘要: A method is provided for an engine capable of burning gaseous fuel, the engine also including a combustion chamber, a fuel supply system with at least one fuel tank, at least one intake valve, and at least one exhaust valve, an injector to directly inject gaseous fuel into the combustion chamber, and an exhaust oxygen sensor. The method comprises directly injecting fuel from the injector into the chamber at a variable supply pressure which decreases as fuel tank pressure decreases; and adjusting at least one of an injection time and duration based at least on said variable pressure and information from the exhaust oxygen sensor.

    摘要翻译: 提供了一种能够燃烧气体燃料的发动机的方法,发动机还包括燃烧室,具有至少一个燃料箱的燃料供应系统,至少一个进气阀和至少一个排气阀,喷射器以直接喷射 气体燃料进入燃烧室,以及排气氧传感器。 该方法包括将燃料从喷射器直接喷射到室内,其可变的供应压力随燃料箱压力的降低而减小; 以及至少基于所述可变压力和来自所述排气氧传感器的信息来调节喷射时间和持续时间中的至少一个。

    INJECTION STRATEGY TO MAXIMIZE EFFICIENCY IN GASEOUS ENGINE
    5.
    发明申请
    INJECTION STRATEGY TO MAXIMIZE EFFICIENCY IN GASEOUS ENGINE 有权
    注气策略最大限度地提高了气体发动机的效率

    公开(公告)号:US20080099002A1

    公开(公告)日:2008-05-01

    申请号:US11554531

    申请日:2006-10-30

    IPC分类号: F02D41/00 F02B43/00

    摘要: A method is provided for an engine capable of burning gaseous fuel, the engine also including a combustion chamber, a fuel supply system with at least one fuel tank, at least one intake valve, and at least one exhaust valve, an injector to directly inject gaseous fuel into the combustion chamber, and an exhaust oxygen sensor. The method comprises directly injecting fuel from the injector into the chamber at a variable supply pressure which decreases as fuel tank pressure decreases; and adjusting at least one of an injection time and duration based at least on said variable pressure and information from the exhaust oxygen sensor.

    摘要翻译: 提供了一种能够燃烧气体燃料的发动机的方法,发动机还包括燃烧室,具有至少一个燃料箱的燃料供应系统,至少一个进气阀和至少一个排气阀,喷射器以直接喷射 气体燃料进入燃烧室,以及排气氧传感器。 该方法包括将燃料从喷射器直接喷射到室内,其可变的供应压力随燃料箱压力的降低而减小; 以及至少基于所述可变压力和来自所述排气氧传感器的信息来调节喷射时间和持续时间中的至少一个。

    Variable intake valve and exhaust valve timing strategy for improving performance in a hydrogen fueled engine
    6.
    发明申请
    Variable intake valve and exhaust valve timing strategy for improving performance in a hydrogen fueled engine 有权
    用于改善氢燃料发动机性能的可变进气门和排气门正时策略

    公开(公告)号:US20070119428A1

    公开(公告)日:2007-05-31

    申请号:US11289804

    申请日:2005-11-29

    摘要: A method for a hydrogen fueled internal combustion engine to reduce backfiring, pre-ignition, and/or backflash, the engine also including a combustion chamber, an intake manifold, an exhaust manifold, at least one intake valve, at least one exhaust valve, a hydrogen injector, a compression device, and a variable valve timing system coupled to the intake valves. The method comprises compressing air using the compression device; injecting hydrogen and mixing at least said hydrogen with air discharged from the compression device; and opening the intake valve to induct at least air into the combustion chamber, wherein the intake valve opening time varies with an operating condition.

    摘要翻译: 一种用于减少后燃,预点火和/或反吹的氢燃料内燃机的方法,所述发动机还包括燃烧室,进气歧管,排气歧管,至少一个进气阀,至少一个排气阀, 氢气喷射器,压缩装置以及与进气门连接的可变气门正时系统。 该方法包括使用压缩装置压缩空气; 注入氢气并将至少所述氢气与从压缩装置排出的空气混合; 并且打开所述进气门至少将空气引入所述燃烧室,其中所述进气门打开时间随着运行状态而变化。

    CONTROL STRATEGY TO BETTER USAGE OF FUEL IN GASEOUS ENGINE
    8.
    发明申请
    CONTROL STRATEGY TO BETTER USAGE OF FUEL IN GASEOUS ENGINE 有权
    控制策略,以更好地在燃气发动机中使用燃料

    公开(公告)号:US20080125955A1

    公开(公告)日:2008-05-29

    申请号:US11564768

    申请日:2006-11-29

    IPC分类号: F02D41/00

    摘要: A method for operating a fueling system in a vehicle having an engine capable of burning gaseous fuel supplied from at least a first and second source to a direct fuel injector of the engine, the first source having a higher source pressure than the second source, the method comprises supplying gaseous fuel to the direct injector from at least the first source during a first engine demand; and supplying gaseous fuel to the direct injector from at least the second source during a second engine demand less than said first engine demand.

    摘要翻译: 一种用于操作车辆中的燃料供给系统的方法,其具有能够将从至少第一和第二源供应的气体燃料燃烧到发动机的直接燃料喷射器的发动机,所述第一源具有比所述第二源更高的源压力, 方法包括在第一发动机需求期间从至少第一源向直接喷射器供应气体燃料; 以及在小于所述第一发动机需求的第二发动机要求期间,从至少所述第二源向所述直接喷射器供应气体燃料。

    Control strategy to better usage of fuel in gaseous engine
    9.
    发明授权
    Control strategy to better usage of fuel in gaseous engine 有权
    控制策略,更好地利用气体发动机中的燃料

    公开(公告)号:US07367312B1

    公开(公告)日:2008-05-06

    申请号:US11564768

    申请日:2006-11-29

    IPC分类号: F02M21/02

    摘要: A method for operating a fueling system in a vehicle having an engine capable of burning gaseous fuel supplied from at least a first and second source to a direct fuel injector of the engine, the first source having a higher source pressure than the second source, the method comprises supplying gaseous fuel to the direct injector from at least the first source during a first engine demand; and supplying gaseous fuel to the direct injector from at least the second source during a second engine demand less than said first engine demand.

    摘要翻译: 一种用于操作车辆中的燃料供给系统的方法,其具有能够将从至少第一和第二源供应的气体燃料燃烧到发动机的直接燃料喷射器的发动机,所述第一源具有比所述第二源更高的源压力, 方法包括在第一发动机需求期间从至少第一源向直接喷射器供应气体燃料; 以及在小于所述第一发动机需求的第二发动机要求期间,从至少所述第二源向所述直接喷射器供应气体燃料。