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公开(公告)号：US20060030998A1
公开(公告)日：2006-02-09
申请号：US11239979
申请日：2005-09-30
CPC分类号： F02D41/0087 , F01N3/027 , F01N3/0814 , F01N3/0842 , F01N3/101 , F01N13/107 , F02D17/02 , F02D41/0042 , F02D41/0045 , F02D41/022 , F02D41/0235 , F02D41/0275 , F02D41/064 , F02D41/065 , F02D41/086 , F02D41/126 , F02D41/182 , F02D2041/001 , F02D2200/0802 , F02D2200/602 , F02M25/089 , F02P5/045 , F02P5/1504 , Y02A50/2324 , Y02T10/22 , Y02T10/46
摘要： Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, catalyst design, and exhaust system design.
摘要翻译： 公开了用于在车辆的一些或所有发动机气缸中的燃料切断操作中进行燃烧的各种系统和方法。 此外，考虑了各种子系统，例如燃料蒸气吹扫，空燃比控制，发动机转矩控制，催化剂设计和排气系统设计。
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公开(公告)号：US20050197759A1
公开(公告)日：2005-09-08
申请号：US10794264
申请日：2004-03-05
CPC分类号： F02D41/0087 , F01N3/027 , F01N3/0814 , F01N3/0842 , F01N3/101 , F01N13/107 , F02D17/02 , F02D41/0042 , F02D41/0045 , F02D41/022 , F02D41/0235 , F02D41/0275 , F02D41/064 , F02D41/065 , F02D41/086 , F02D41/126 , F02D41/182 , F02D2041/001 , F02D2200/0802 , F02D2200/602 , F02M25/089 , F02P5/045 , F02P5/1504 , Y02A50/2324 , Y02T10/22 , Y02T10/46
摘要： Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, catalyst design, and exhaust system design.
摘要翻译： 公开了用于在车辆的一些或所有发动机气缸中的燃料切断操作中进行燃烧的各种系统和方法。 此外，考虑了各种子系统，例如燃料蒸气吹扫，空燃比控制，发动机转矩控制，催化剂设计和排气系统设计。
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3.发明申请公开(公告)号：US20060096276A1
公开(公告)日：2006-05-11
申请号：US10985576
申请日：2004-11-09
IPC分类号： F01N3/00
CPC分类号： F01N3/0814 , F01N3/0842 , F01N13/009 , F01N13/0097 , F02D41/0275 , Y02A50/2345 , Y02T10/22
摘要： A mechanical apparatus including a combustion engine, a conduit for transporting an exhaust stream away from the engine, a first catalytic NOx storage and conversion region disposed along the conduit, and a second catalytic NOx storage and conversion region disposed along the conduit at a location downstream from the first catalytic NOx storage and conversion region is disclosed. Each of the first catalytic NOx storage and conversion region and the second catalytic NOx storage and conversion region includes at least one catalytic metal configured to convert NOx to NO2 when the engine is supplied a lean air/fuel mixture, and at least one NOx adsorbing compound configured to adsorb NO2 for storage when the engine is supplied a lean air/fuel mixture, and wherein the one of the first and the second catalytic NOx storage and conversion regions has a lower concentration of catalytic metal than the other of the first and second catalytic NOx storage and conversion regions.
摘要翻译： 一种机械设备，包括内燃机，用于将排气流输送离开发动机的导管，沿导管设置的第一催化剂NO x X存储和转化区域，以及第二催化剂NO x 公开了沿着导管设置在第一催化剂NO x存储和转换区域下游的位置的存储和转换区域。 第一催化NO x X存储和转化区域和第二催化剂NO x存储和转化区域中的每一个包括至少一种催化金属，其被配置成将NO x x 在发动机供给稀薄空气/燃料混合物时，至少一个NO 2吸附化合物配置成吸附NO 2 / SUB>用于在发动机供应稀薄空气/燃料混合物时存储，并且其中第一和第二催化剂NO x存储和转化区域中的一个具有比其他催化剂更低的催化金属浓度 的第一和第二催化剂NO x存储和转化区域。
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4.发明申请System and method for determining a NOx storage capacity of a catalytic device 审中-公开用于确定催化装置的NOx存储容量的系统和方法公开(公告)号：US20070084196A1
公开(公告)日：2007-04-19
申请号：US11254304
申请日：2005-10-19
IPC分类号： F01N3/00
CPC分类号： F01N3/0807 , F01N3/0842 , F01N3/106 , F01N11/007 , F01N13/009 , F01N2560/025 , F01N2560/14 , F02D41/0275 , F02D41/1441 , F02D41/1475 , F02D2200/0808 , F02D2200/0816 , Y02T10/47
摘要： In an apparatus having an internal combustion engine, a method of operating the engine including operating the engine at a first non-stoichiometric relative air/fuel ratio for a first duration; operating the engine at a second non-stoichiometric relative air/fuel ratio for a second duration, wherein the second relative air/fuel ratio is on an opposite side of a stoichiometric relative air/fuel ratio as the first relative air/fuel ratio, and wherein the second duration is of sufficient length to allow at least one of one of a substantial saturation of oxygen storage sites in the catalytic device and a substantial regeneration of oxygen storage sites in the catalytic device; and operating the engine at a third non-stoichiometric relative air/fuel ratio for a third duration, wherein the third relative air/fuel ratio is on a same side of the stoichiometric relative air/fuel ratio as the second relative air/fuel ratio and is further from the stoichiometric relative air/fuel ratio than the second relative air/fuel ratio.
摘要翻译： 在具有内燃机的装置中，一种操作发动机的方法包括以第一非化学计量相对空燃比操作发动机持续第一时间; 以第二非化学计量相对空气/燃料比操作所述发动机持续第二持续时间，其中所述第二相对空气/燃料比在与所述第一相对空气/燃料比的化学计量相对空气/燃料比的相反侧，以及 其中所述第二持续时间具有足够的长度以允许所述催化装置中的氧储存位置的基本饱和中的至少一个和所述催化装置中的氧存储位点的实质再生; 以及以第三非化学计量相对空气/燃料比操作所述发动机持续第三持续时间，其中所述第三相对空气/燃料比与所述第二相对空气/燃料比的化学计量相对空气/燃料比的相同侧，以及 比第二相对空气/燃料比的化学计量相对空气/燃料比更远。
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5.发明申请System and method for determining a NOx storage capacity of catalytic device 有权用于确定催化装置的NOx储存容量的系统和方法公开(公告)号：US20070084195A1
公开(公告)日：2007-04-19
申请号：US11254287
申请日：2005-10-19
IPC分类号： F01N3/00
CPC分类号： F01N11/007 , F01N3/0807 , F01N3/0842 , F01N3/106 , F01N13/009 , F01N2560/025 , F01N2560/14 , F02D41/0275 , F02D41/1441 , F02D41/1475 , F02D2200/0802 , F02D2200/0808 , F02D2200/0816 , Y02T10/47
摘要： In an apparatus having an internal combustion engine, a catalytic device for treating emissions from the engine, an upstream oxygen sensor positioned upstream of the catalytic device, a downstream oxygen sensor positioned downstream of the catalytic device, and a controller configured to determine a NOx storage capacity of the catalytic device from a difference between a signal received from the upstream oxygen sensor and a signal received from the downstream oxygen sensor, a method of operating the engine is disclosed, the method including operating the engine at a rich air/fuel ratio for a first interval; adjusting a temperature of the catalytic device to a diagnostic temperature for measuring an oxygen uptake by the catalytic device; operating the engine at a lean air/fuel ratio for a second interval; and adjusting the temperature of the catalytic device to an operating temperature.
摘要翻译： 在具有内燃机的装置中，用于处理来自发动机的排放物的催化装置，位于催化装置上游的上游氧传感器，位于催化装置下游的下游氧传感器，以及控制器， 从上游氧传感器接收的信号与从下游氧传感器接收的信号之间的差异，催化装置的存储容量，发动机的操作方法被公开，该方法包括操作发动机 以较高的空燃比第一间隔; 将催化装置的温度调节到用于测量催化装置的氧吸收的诊断温度; 以稀空气/燃料比操作发动机第二间隔; 并将催化装置的温度调节至工作温度。
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6.发明申请Lean burn engine control NOx purging based on positional loading of oxidants in emission control device 有权精益燃烧发动机根据排放控制装置中氧化剂的位置负荷来控制NOx净化公开(公告)号：US20060096277A1
公开(公告)日：2006-05-11
申请号：US10985578
申请日：2004-11-09
CPC分类号： F01N3/0814 , B01D53/9409 , B01D53/9495 , F01N3/0842 , F01N13/009 , F01N13/0093 , F01N13/0097 , F02D41/0275
摘要： Disclosed is a method for controlling a lean burn engine coupled to an emission control device that stores oxidants during lean operation, and reacts the stored oxidants during stoichiometric or rich operation, the method comprising estimating amounts of NOx stored in the device along a plurality of axial positions of the device and adjusting an operating parameter based on said estimate.
摘要翻译： 公开了一种用于控制稀释燃烧发动机的方法，所述稀燃燃烧发动机与排放控制装置耦合，所述排放控制装置在稀薄操作期间存储氧化剂，并且在化学计量或富运行期间使所存储的氧化剂反应，所述方法包括沿着多个轴向估计储存在装置中的NOx量 基于所述估计的设备的位置和调整操作参数。
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公开(公告)号：US20050193720A1
公开(公告)日：2005-09-08
申请号：US10794635
申请日：2004-03-05
CPC分类号： F02D41/0082 , F01N3/101 , F01N13/011 , F01N2430/02 , F02B17/005 , F02B2075/125 , F02D13/0219 , F02D13/06 , F02D17/02 , F02D41/0032 , F02D41/0087 , F02M25/089 , Y02A50/2324 , Y02T10/123 , Y02T10/18 , Y02T10/22
摘要： Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, catalyst design, and exhaust system design.
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8.发明申请System and Method for Controlling Valve Timing of an Engine with Cylinder Deactivation 有权用于控制气缸停用的发动机气门正时控制系统和方法公开(公告)号：US20080066450A1
公开(公告)日：2008-03-20
申请号：US11872150
申请日：2007-10-15
IPC分类号： F01N3/18
CPC分类号： F02D41/0082 , F01N3/101 , F01N13/011 , F01N2430/02 , F02B17/005 , F02B2075/125 , F02D13/0219 , F02D13/06 , F02D17/02 , F02D41/0032 , F02D41/0087 , F02M25/089 , Y02A50/2324 , Y02T10/123 , Y02T10/18 , Y02T10/22
摘要： Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, catalyst design, and exhaust system design.
摘要翻译： 公开了用于在车辆的一些或所有发动机气缸中的燃料切断操作中进行燃烧的各种系统和方法。 此外，考虑了各种子系统，例如燃料蒸气吹扫，空燃比控制，发动机转矩控制，催化剂设计和排气系统设计。
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9.发明申请公开(公告)号：US20050193718A1
公开(公告)日：2005-09-08
申请号：US10794494
申请日：2004-03-05
CPC分类号： F01N3/0842 , F01N9/00 , F01N2430/02 , F01N2900/1614 , F02D17/02 , F02D41/0082 , F02D41/0087 , F02D41/0275 , F02D41/1408 , F02M26/43 , Y02T10/47
摘要： Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, catalyst design, and exhaust system design.
摘要翻译： 公开了用于在车辆的一些或所有发动机气缸中的燃料切断操作中进行燃烧的各种系统和方法。 此外，考虑了各种子系统，例如燃料蒸气吹扫，空燃比控制，发动机转矩控制，催化剂设计和排气系统设计。
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10.发明申请MINIMIZATION OF PURGE NOx RELEASE FROM NOx TRAPS BY OPTIMIZING THE OXYGEN STORAGE CAPACITY 有权通过优化氧气储存能力，最大限度地减少氮氧化物排放的NOx排放公开(公告)号：US20050148463A1
公开(公告)日：2005-07-07
申请号：US10707659
申请日：2003-12-30
CPC分类号： B01D53/9422 , B01D53/96 , B01D2255/102 , B01D2255/202 , B01D2255/204 , B01D2255/2065 , B01D2255/908 , B01D2255/91 , B01J23/58 , B01J23/63 , B01J37/0244 , Y02C20/10
摘要： The present invention provides a catalyst for use in a NOx trap that has reduced NOx release during rich purges, increased NO conversion efficiency under stoichiometric conditions, and improved sulfur tolerance. The catalyst of this embodiment includes a precious metal, an oxygen storage component in contact with the precious metal, and a NOx storage material. The oxygen storage component in contact with the precious metal is present in an amount that provides sufficient oxygen storage capacity to reduce the NOx release from the NOx trap during rich purges to less than 20% of the NOx that is stored in the NOx trap across the operating temperature window of the NOx trap, increase the NOx conversion efficiency under stoichiometric conditions to a value greater than 70%, and increase the sulfur tolerance of the NOx trap.
摘要翻译： 本发明提供了一种用于在富集清洗期间减少NO x释放，在化学计量条件下提高NO转化效率和改善硫耐受性的NO X阱捕集器中的催化剂。 该实施方案的催化剂包括贵金属，与贵金属接触的储氧组分和NO x X存储材料。 与贵金属接触的储氧组分以提供足够的储氧能力的量存在，以便在富含清洗期间将NO x 2+释放从NO X 2捕集器中减少至 在NO 陷阱的工作温度窗口中存储在NO 陷阱中的小于20％的NO 增加了 在化学计量条件下的转化效率为大于70％的值，并且增加了NO x陷阱的耐硫性。
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