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公开(公告)号：US20090294552A1
公开(公告)日：2009-12-03
申请号：US12156233
申请日：2008-05-30
申请人： David J. Trapasso , Arthur R. Williams , Kevin S. Hoyer , Tanto Sugiarto , Michael A. Breed , Adrian G. Grammar , Keith E. McClain , Jason C. Short , Orlando Volpato , Luciano Felice
发明人： David J. Trapasso , Arthur R. Williams , Kevin S. Hoyer , Tanto Sugiarto , Michael A. Breed , Adrian G. Grammar , Keith E. McClain , Jason C. Short , Orlando Volpato , Luciano Felice
IPC分类号： B05B1/24
CPC分类号： F02M53/06 , F02M51/061
摘要： A heated fuel injector includes a heated body, liquid fuel flowing through a fuel passage within the body, and a member that increases heat transfer from the heated body to the fuel within the fuel passage. The thermal efficiency of the fuel injector is increased separately or in combination by diverting the fuel flow along an inner circumferential contour of the heated body, by limiting the volume of fuel bypassing the heated inner surface of the body, by redirecting heat from the body to unheated portions of the fuel flow field within the fuel passage, and by increasing the available contact surface area for heat transfer. Improved heat transfer from the heated body to the fuel is achieved by integrating features that increase the contact surface area into the inside surface of the body or by positioning an insulating or a thermally conductive spacer within the fuel passage.
摘要翻译： 加热燃料喷射器包括加热体，流过本体内的燃料通道的液体燃料，以及增加从加热体到燃料通道内的燃料的热传递的部件。 燃料喷射器的热效率通过将燃料流沿着加热体的内圆周轮廓转向，通过限制旁路加热的身体内表面的燃料的体积，通过将热量从身体重定向到 燃料流路内的燃料流场的未加热部分，以及增加可用的热传递接触面积。 通过将增加接触表面积的特征集成到体内的内表面或通过在燃料通道内定位绝缘或导热隔离物来实现从被加热体到燃料的改进的热传递。
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公开(公告)号：US07766254B2
公开(公告)日：2010-08-03
申请号：US12156233
申请日：2008-05-30
申请人： David J. Trapasso , Arthur R. Williams , Kevin S. Hoyer , Tanto Sugiarto , Michael A. Breed , Adrian G. Grammar , Keith E. McClain , Jason C. Short , Orlando Volpato Filho , Luciano Felice
发明人： David J. Trapasso , Arthur R. Williams , Kevin S. Hoyer , Tanto Sugiarto , Michael A. Breed , Adrian G. Grammar , Keith E. McClain , Jason C. Short , Orlando Volpato Filho , Luciano Felice
CPC分类号： F02M53/06 , F02M51/061
摘要： A heated fuel injector includes a heated body, liquid fuel flowing through a fuel passage within the body, and a member that increases heat transfer from the heated body to the fuel within the fuel passage. The thermal efficiency of the fuel injector is increased separately or in combination by diverting the fuel flow along an inner circumferential contour of the heated body, by limiting the volume of fuel bypassing the heated inner surface of the body, by redirecting heat from the body to unheated portions of the fuel flow field within the fuel passage, and by increasing the available contact surface area for heat transfer. Improved heat transfer from the heated body to the fuel is achieved by integrating features that increase the contact surface area into the inside surface of the body or by positioning an insulating or a thermally conductive spacer within the fuel passage.
摘要翻译： 加热燃料喷射器包括加热体，流过本体内的燃料通道的液体燃料，以及增加从加热体到燃料通道内的燃料的热传递的部件。 燃料喷射器的热效率通过将燃料流沿着加热体的内圆周轮廓转向，通过限制旁路加热的身体内表面的燃料的体积，通过将热量从身体重定向到 燃料流路内的燃料流场的未加热部分，以及增加可用的热传递接触面积。 通过将增加接触表面积的特征集成到体内的内表面或通过在燃料通道内定位绝缘或导热隔离物来实现从被加热体到燃料的改进的热传递。
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3.发明授权Method for triggering a regeneration event in a particulates filter of an internal combustion engine 有权用于在内燃机的微粒过滤器中触发再生事件的方法公开(公告)号：US07930880B2
公开(公告)日：2011-04-26
申请号：US12011535
申请日：2008-01-28
IPC分类号： F01N3/00
CPC分类号： F01N3/023
摘要： A method for triggering a new regeneration event in a soot-trapping particulates filter disposed in an exhaust gas stream of an internal combustion engine, comprising the steps of determining instantaneous engine speed and engine load; determining instantaneous mass fractions for wet soot and for dry soot in the exhaust gas stream for the instantaneous engine speed and load; determining instantaneous concentrations of wet and dry soot particles in the exhaust gas; determining the rates of accumulation of wet soot and dry soot in the particulates filter; determining the total amounts of wet soot and dry soot accumulated in said soot-trapping device during all engine operation conditions since the latest previous regeneration event; and triggering the new regeneration event when the total amount of wet soot and dry soot exceeds a permissible value.
摘要翻译： 一种用于在布置在内燃机的废气流中的烟尘捕集微粒过滤器中触发新的再生事件的方法，包括以下步骤：确定瞬时发动机转速和发动机负荷; 确定用于瞬时发动机转速和负载的废烟气中的湿煤烟和干煤烟的瞬时质量分数; 确定废气中湿和干烟灰颗粒的瞬时浓度; 确定颗粒过滤器中湿烟灰和干烟灰的积累速率; 确定在所述发动机运行条件之后所述烟灰捕集装置中累积的湿烟灰和干烟灰的总量，因为最近的先前再生事件; 并且当湿烟灰和干烟灰的总量超过允许值时触发新的再生事件。
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4.发明授权公开(公告)号：US07992381B2
公开(公告)日：2011-08-09
申请号：US12011530
申请日：2008-01-28
IPC分类号： F01N3/00
摘要： A method for regeneration of a CDPF disposed in the exhaust stream of a diesel engine. The method includes a second phase operation following a first phase substantially as disclosed in the prior art. As the first phase ends, as indicated by a temperature sensor at the exit end of the CDPF, the temperature and oxygen content of the exhaust gas are increased at the entrance to the CDPF in an ensuing second stage. These increases cause oxidation of the soot remaining near the entrance and the sides of the CDPF, resulting in a cleaner and higher-capacity CDPF than is produced by a single-phase regeneration in the prior art. The sequential stages are implemented via an algorithm programmed into an Engine Control Module (ECM). A CDPF regenerated in accordance with the invention can have approximately 95% of its filtration capacity restored.
摘要翻译： 一种设置在柴油发动机的排气流中的CDPF的再生方法。 该方法包括基本上如现有技术中所公开的第一阶段之后的第二阶段操作。 当第一相结束时，如在CDPF的出口端处的温度传感器所示，随后的第二阶段，排气的温度和氧含量在CDPF的入口处增加。 这些增加导致残留在CDPF的入口和侧面附近的烟灰的氧化，导致比现有技术中的单相再生产生的更清洁和更高容量的CDPF。 顺序阶段通过编程到发动机控制模块（ECM）中的算法来实现。 根据本发明再生的CDPF可以恢复约95％的过滤能力。
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5.发明申请Method for controlling catalyst and filter temperatures in regeneration of a catalytic diesel particulate filter 有权控制催化柴油微粒过滤器再生催化剂和过滤器温度的方法公开(公告)号：US20090188243A1
公开(公告)日：2009-07-30
申请号：US12011536
申请日：2008-01-28
摘要： A system for managing regeneration of a CDPF in a diesel engine. The system determines volatility of the accumulated soot by a weighting/indexing method to select a regeneration control strategy that protects the CDPF from thermal damage. The system determines the mass of wet soot and dry soot accumulated over the previous driving cycle and selects a management strategy to control the rate of temperature increase and the thermal gradient imposed upon the filter. The wet soot percent is an index for setting the regeneration temperature control profile for an allowable total accumulated soot mass as a function of the accumulated wet soot. The method also scales the soot mass regeneration threshold value based upon wet soot accumulation and accumulation rate and provides an indicator of combustibility of the soot accumulation. The method provides a temperature ramp rate, total regeneration time, and exhaust oxygen level required to control regeneration.
摘要翻译： 一种用于管理柴油发动机中的CDPF再生的系统。 该系统通过加权/索引方法确定积累的烟灰的挥发性，以选择保护CDPF免受热损伤的再生控制策略。 该系统确定在先前的驱动循环中累积的湿煤烟和干烟尘的质量，并选择管理策略来控制温度升高速率和施加在过滤器上的热梯度。 湿烟灰百分比是用于将再生温度控制曲线设置为允许的总累积烟灰质量作为累积湿烟灰的函数的指标。 该方法还基于湿烟灰积累和积累速率来缩放烟灰质量再生阈值，并提供烟灰积聚的可燃性指标。 该方法提供了控制再生所需的温度升高速率，总再生时间和排气氧气水平。
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6.发明申请公开(公告)号：US20090188241A1
公开(公告)日：2009-07-30
申请号：US12011530
申请日：2008-01-28
摘要： A method for regeneration of a CDPF disposed in the exhaust stream of a diesel engine. The method includes a second phase operation following a first phase substantially as disclosed in the prior art. As the first phase ends, as indicated by a temperature sensor at the exit end of the CDPF, the temperature and oxygen content of the exhaust gas are increased at the entrance to the CDPF in an ensuing second stage. These increases cause oxidation of the soot remaining near the entrance and the sides of the CDPF, resulting in a cleaner and higher-capacity CDPF than is produced by a single-phase regeneration in the prior art. The sequential stages are implemented via an algorithm programmed into an Engine Control Module (ECM). A CDPF regenerated in accordance with the invention can have approximately 95% of its filtration capacity restored.
摘要翻译： 一种设置在柴油发动机的排气流中的CDPF的再生方法。 该方法包括基本上如现有技术中所公开的第一阶段之后的第二阶段操作。 当第一相结束时，如在CDPF的出口端处的温度传感器所示，随后的第二阶段，排气的温度和氧含量在CDPF的入口处增加。 这些增加导致残留在CDPF的入口和侧面附近的烟灰的氧化，导致比现有技术中的单相再生产生的更清洁和更高容量的CDPF。 顺序阶段通过编程到发动机控制模块（ECM）中的算法来实现。 根据本发明再生的CDPF可以恢复约95％的过滤能力。
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7.发明授权Method for controlling catalyst and filter temperatures in regeneration of a catalytic diesel particulate filter 有权控制催化柴油微粒过滤器再生催化剂和过滤器温度的方法公开(公告)号：US07937935B2
公开(公告)日：2011-05-10
申请号：US12011536
申请日：2008-01-28
IPC分类号： F01N3/00
摘要： A system for managing regeneration of a CDPF in a diesel engine. The system determines volatility of the accumulated soot by a weighting/indexing method to select a regeneration control strategy that protects the CDPF from thermal damage. The system determines the mass of wet soot and dry soot accumulated over the previous driving cycle and selects a management strategy to control the rate of temperature increase and the thermal gradient imposed upon the filter. The wet soot percent is an index for setting the regeneration temperature control profile for an allowable total accumulated soot mass as a function of the accumulated wet soot. The method also scales the soot mass regeneration threshold value based upon wet soot accumulation and accumulation rate and provides an indicator of combustibility of the soot accumulation. The method provides a temperature ramp rate, total regeneration time, and exhaust oxygen level required to control regeneration.
摘要翻译： 一种用于管理柴油发动机中的CDPF再生的系统。 该系统通过加权/索引方法确定积累的烟灰的挥发性，以选择保护CDPF免受热损伤的再生控制策略。 该系统确定在先前的驱动循环中积累的湿煤烟和干烟尘的质量，并且选择管理策略来控制温度升高速率和施加在过滤器上的热梯度。 湿烟灰百分比是用于将再生温度控制曲线设置为允许的总累积烟灰质量作为累积湿烟灰的函数的指标。 该方法还基于湿烟灰积累和积累速率来缩放烟灰质量再生阈值，并提供烟灰积聚的可燃性指标。 该方法提供了控制再生所需的温度升高速率，总再生时间和排气氧气水平。
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8.发明申请Method for triggering a regeneration event in a particulates filter of an internal combustion engine 有权用于在内燃机的微粒过滤器中触发再生事件的方法公开(公告)号：US20090188242A1
公开(公告)日：2009-07-30
申请号：US12011535
申请日：2008-01-28
CPC分类号： F01N3/023
摘要： A method for triggering a new regeneration event in a soot-trapping particulates filter disposed in an exhaust gas stream of an internal combustion engine, comprising the steps of determining instantaneous engine speed and engine load; determining instantaneous mass fractions for wet soot and for dry soot in the exhaust gas stream for the instantaneous engine speed and load; determining instantaneous concentrations of wet and dry soot particles in the exhaust gas; determining the rates of accumulation of wet soot and dry soot in the particulates filter; determining the total amounts of wet soot and dry soot accumulated in said soot-trapping device during all engine operation conditions since the latest previous regeneration event; and triggering the new regeneration event when the total amount of wet soot and dry soot exceeds a permissible value.
摘要翻译： 一种用于在布置在内燃机的废气流中的烟尘捕集微粒过滤器中触发新的再生事件的方法，包括以下步骤：确定瞬时发动机转速和发动机负荷; 确定用于瞬时发动机转速和负载的废烟气中的湿煤烟和干煤烟的瞬时质量分数; 确定废气中湿和干烟灰颗粒的瞬时浓度; 确定颗粒过滤器中湿烟灰和干烟灰的积累速率; 确定在所述发动机运行条件之后所述烟灰捕集装置中累积的湿烟灰和干烟灰的总量，因为最近的先前再生事件; 并且当湿烟灰和干烟灰的总量超过允许值时触发新的再生事件。
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