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公开(公告)号：US08033096B2
公开(公告)日：2011-10-11
申请号：US11952397
申请日：2007-12-07
IPC分类号： F01N3/00
CPC分类号： F01N3/2066 , B01D53/90 , B01D53/9431 , B01D2251/2067 , F01N2610/02 , F01N2610/1406 , F02D41/1462 , Y02T10/24
摘要： A temperature-sensitive type urea sensor 74 is adopted for use in an engine exhaust gas purifying apparatus. The magnitude of convection of urea aqueous solution generated in a storage tank 41 is determined based on temperature information detected by the urea sensor 74. For detection of abnormality, a detected concentration Dn is adopted when the percentage GRDt of temperature change of urea aqueous solution is small, so that convection is small and it is determined not to affect accurate detection of an abnormality.
摘要翻译： 在发动机废气净化装置中使用温敏型尿素传感器74。 根据由尿素传感器74检测出的温度信息，确定储存罐41中产生的尿素水溶液的对流大小。为了检测异常，当尿素水溶液的温度变化率GRDt为 小，使得对流小，并且确定不影响异常的精确检测。
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公开(公告)号：US20070240405A1
公开(公告)日：2007-10-18
申请号：US11800450
申请日：2007-05-04
CPC分类号： B01D53/90 , B01D53/9454 , B01D2251/2067 , B01D2259/12 , F01N3/2066 , F01N11/00 , F01N2550/05 , F01N2560/06 , F01N2560/08 , F01N2610/02 , F01N2610/08 , F01N2900/1811 , F01N2900/1824 , Y02T10/22 , Y02T10/24 , Y02T10/47
摘要： An exhaust gas purification apparatus of an engine, capable of preventing erroneous detection of an injection nozzle clogging, and having a reducing catalytic converter disposed in an exhaust system, for reducing and purifying nitrogen oxide in the exhaust gas using urea water; a urea water tank storing the urea water; a urea water supply unit sucking up the urea water from the urea water tank and mixes it with high-pressure air for delivery; and an injection nozzle injecting the urea water mixed with the high-pressure air, into an exhaust gas moving upstream side of the reducing catalytic converter in an exhaust gas passage, and further having a clogging detection unit capable of detecting clogging of the injection nozzle based on each detection output of a pressure of the air introduced into the urea water supply unit, and a temperature of the injection nozzle.
摘要翻译： 一种发动机的排气净化装置，其能够防止喷嘴堵塞的错误检测，并且在排气系统中设置有用于使用尿素水减少和净化排气中的氮氧化物的还原催化转化器; 储存尿素水的尿素水箱; 尿素水供应单元从尿素水箱吸取尿素水并将其与高压空气混合以进行输送; 以及喷射喷嘴，将与高压空气混合的尿素水喷射到排气通道中的还原催化转化器的上游侧的排气中，并且还具有能够检测喷嘴的堵塞的堵塞检测单元 在引导到尿素水供给单元的空气的压力的每个检测输出上以及喷射喷嘴的温度。
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公开(公告)号：US07618593B2
公开(公告)日：2009-11-17
申请号：US11790750
申请日：2007-04-27
IPC分类号： C06B21/00
CPC分类号： F01N3/2066 , F01N2610/02 , F01N2610/10 , F01N2610/1406 , F01N2610/148 , F01N2610/1486 , F01N2900/1814 , F01N2900/1818 , Y02T10/24
摘要： On an upper surface of a container body, there are disposed at least a base portion of a concentration meter configured to detect the concentration of a liquid reducing agent based on a heat transmission characteristic between two spaced points, and a heat exchanger configured to permit the engine coolant to circulate therein and arranged to surround a detecting section of the concentration meter, which hangs from the base portion of the concentration meter via a supporting column thereof, to thereby perform the heat exchange with the liquid reducing agent, and also, a protector or an encasing element of substantially box shape is arranged to surround a lower portion of the heat exchanger and the detecting section of the concentration meter, and further, a visor is attached on the supporting column of the concentration meter, which is positioned above the protector by a predetermined interval.
摘要翻译： 在容器主体的上表面上设置有浓度计的至少一部分，其配置为基于两个间隔点之间的传热特性来检测液体还原剂的浓度，以及热交换器， 发动机冷却剂在其中循环并且布置成围绕浓度计的检测部分，其通过其支撑柱从浓缩计的基部悬挂，从而与液体还原剂进行热交换，以及保护器 或者包围大致盒状的封装元件，以包围热交换器的下部和浓度计的检测部，此外，将遮阳板安装在位于保护器上方的浓度计的支撑柱上 以预定间隔。
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公开(公告)号：US07651262B2
公开(公告)日：2010-01-26
申请号：US11945201
申请日：2007-11-26
CPC分类号： B01D53/9431 , B01D53/9495 , F01N3/206 , F01N2610/02 , F01N2900/0421 , F01N2900/1818 , G01N25/18
摘要： A discriminating apparatus of liquid reducing agent is disclosed, in which, based on concentration of liquid reducing agent which is measured at each predetermined time after starting of engine, discrimination is processed whether the storage tank is filled with dissimilar aqueous solution, the storage tank is normally filled with the liquid reducing agent, or the storage tank is empty. When the empty discrimination or the dissimilar aqueous solution discrimination is performed, it is judged whether or not the discrimination is adequate according to the liquid condition in the storage tank. When the empty or the dissimilar aqueous solution discrimination is adequate, the empty discrimination frequency or the dissimilar aqueous solution discrimination frequency is counted up. When the empty discrimination frequency and the dissimilar aqueous solution discrimination frequency become equal to or larger than the first predetermined frequency, the discrimination is upheld.
摘要翻译： 公开了一种液体还原剂的识别装置，其中，基于在发动机起动后的每个预定时间测量的液体还原剂的浓度，对存储罐是否填充有不同的水溶液进行鉴别，储罐是 通常填充有液体还原剂，或储存罐是空的。 当进行空白识别或不同的水溶液鉴别时，根据储存罐中的液体状况来判断判别是否足够。 当空的或不同的水溶液鉴别是足够的时，空的辨别频率或不同的水溶液鉴别频率被计数。 当空识别频率和不同水溶液判别频率变得等于或大于第一预定频率时，维持判别。
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公开(公告)号：US20080087009A1
公开(公告)日：2008-04-17
申请号：US11952397
申请日：2007-12-07
CPC分类号： F01N3/2066 , B01D53/90 , B01D53/9431 , B01D2251/2067 , F01N2610/02 , F01N2610/1406 , F02D41/1462 , Y02T10/24
摘要： A temperature-sensitive type urea sensor 74 is adopted for use in an engine exhaust gas purifying apparatus. The magnitude of convection of urea aqueous solution generated in a storage tank 41 is determined based on temperature information detected by the urea sensor 74. For detection of abnormality, a detected concentration Dn is adopted when the percentage GRDt of temperature change of urea aqueous solution is small, so that convection is small and it is determined not to affect accurate detection of an abnormality.
摘要翻译： 在发动机废气净化装置中使用温敏型尿素传感器74。 基于由尿素传感器74检测到的温度信息，确定在储罐41中产生的尿素水溶液的对流大小。 为了检测异常，当尿素水溶液的温度变化率GRDt小时，采用检测浓度Dn，使得对流较小，并且不会影响异常的精确检测。
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公开(公告)号：US20070202019A1
公开(公告)日：2007-08-30
申请号：US11790750
申请日：2007-04-27
IPC分类号： C06B21/00
CPC分类号： F01N3/2066 , F01N2610/02 , F01N2610/10 , F01N2610/1406 , F01N2610/148 , F01N2610/1486 , F01N2900/1814 , F01N2900/1818 , Y02T10/24
摘要： On an upper surface of a container body, there are disposed at least a base portion of a concentration meter configured to detect the concentration of a liquid reducing agent based on a heat transmission characteristic between two spaced points, and a heat exchanger configured to permit the engine coolant to circulate therein and arranged to surround a detecting section of the concentration meter, which hangs from the base portion of the concentration meter via a supporting column thereof, to thereby perform the heat exchange with the liquid reducing agent, and also, a protector or an encasing element of substantially box shape is arranged to surround a lower portion of the heat exchanger and the detecting section of the concentration meter, and further, a visor is attached on the supporting column of the concentration meter, which is positioned above the protector by a predetermined interval.
摘要翻译： 在容器主体的上表面上设置有浓度计的至少一部分，其配置为基于两个间隔点之间的传热特性来检测液体还原剂的浓度，以及热交换器， 发动机冷却剂在其中循环并且布置成围绕浓度计的检测部分，其通过其支撑柱从浓缩计的基部悬挂，从而与液体还原剂进行热交换，以及保护器 或者包围大致盒状的封装元件，以包围热交换器的下部和浓度计的检测部，此外，将遮阳板安装在位于保护器上方的浓度计的支撑柱上 以预定间隔。
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公开(公告)号：US07743603B2
公开(公告)日：2010-06-29
申请号：US11800450
申请日：2007-05-04
IPC分类号： F01N3/00
CPC分类号： B01D53/90 , B01D53/9454 , B01D2251/2067 , B01D2259/12 , F01N3/2066 , F01N11/00 , F01N2550/05 , F01N2560/06 , F01N2560/08 , F01N2610/02 , F01N2610/08 , F01N2900/1811 , F01N2900/1824 , Y02T10/22 , Y02T10/24 , Y02T10/47
摘要： An exhaust gas purification apparatus of an engine, capable of preventing erroneous detection of an injection nozzle clogging, and having a reducing catalytic converter disposed in an exhaust system, for reducing and purifying nitrogen oxide in the exhaust gas using urea water; a urea water tank storing the urea water; a urea water supply unit sucking up the urea water from the urea water tank and mixes it with high-pressure air for delivery; and an injection nozzle injecting the urea water mixed with the high-pressure air, into an exhaust gas moving upstream side of the reducing catalytic converter in an exhaust gas passage, and further having a clogging detection unit capable of detecting clogging of the injection nozzle based on each detection output of a pressure of the air introduced into the urea water supply unit, and a temperature of the injection nozzle.
摘要翻译： 一种发动机的排气净化装置，其能够防止喷嘴堵塞的错误检测，并且在排气系统中设置有用于使用尿素水减少和净化排气中的氮氧化物的还原催化转化器; 储存尿素水的尿素水箱; 尿素水供应单元从尿素水箱吸取尿素水并将其与高压空气混合以进行输送; 以及喷射喷嘴，将与高压空气混合的尿素水喷射到排气通道中的还原催化转化器的上游侧的排气中，并且还具有能够检测喷嘴的堵塞的堵塞检测单元 在引导到尿素水供给单元的空气的压力的每个检测输出上以及喷射喷嘴的温度。
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公开(公告)号：US20080089384A1
公开(公告)日：2008-04-17
申请号：US11945201
申请日：2007-11-26
IPC分类号： G01N25/00
CPC分类号： B01D53/9431 , B01D53/9495 , F01N3/206 , F01N2610/02 , F01N2900/0421 , F01N2900/1818 , G01N25/18
摘要： A discriminating apparatus of liquid reducing agent is disclosed, in which, based on concentration of liquid reducing agent which is measured at each predetermined time after starting of engine, discrimination is processed whether the storage tank is filled with dissimilar aqueous solution, the storage tank is normally filled with the liquid reducing agent, or the storage tank is empty. When the empty discrimination or the dissimilar aqueous solution discrimination is performed, it is judged whether or not the discrimination is adequate according to the liquid condition in the storage tank. When the empty or the dissimilar aqueous solution discrimination is adequate, the empty discrimination frequency or the dissimilar aqueous solution discrimination frequency is counted up. When the empty discrimination frequency and the dissimilar aqueous solution discrimination frequency become equal to or larger than the first predetermined frequency, the discrimination is upheld.
摘要翻译： 公开了一种液体还原剂的识别装置，其中，基于在发动机起动后的每个预定时间测量的液体还原剂的浓度，对存储罐是否填充有不同的水溶液进行鉴别，储罐是 通常填充有液体还原剂，或储存罐是空的。 当进行空白识别或不同的水溶液鉴别时，根据储存罐中的液体状况来判断判别是否足够。 当空的或不同的水溶液鉴别是足够的时，空的辨别频率或不同的水溶液鉴别频率被计数。 当空识别频率和不同水溶液判别频率变得等于或大于第一预定频率时，维持判别。
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公开(公告)号：US08069649B2
公开(公告)日：2011-12-06
申请号：US12422139
申请日：2009-04-10
申请人： Hideki Matsunaga
发明人： Hideki Matsunaga
IPC分类号： F01N3/00
CPC分类号： F01N3/2066 , B01D2251/2062 , B01D2251/2067 , B01D2251/208 , F01N3/106 , F01N11/00 , F01N13/009 , F01N13/0097 , F01N2550/05 , F01N2610/10 , F01N2900/0421 , F01N2900/1811 , F01N2900/1814 , Y02A50/2325 , Y02T10/24 , Y02T10/47
摘要： When a concentration measured by a sensor is lower than a predetermined threshold, it is judged that a liquid is any different type of aqueous solution, and also, it is judged whether or not the different type discrimination is adequate. When the discrimination is adequate, the number of different type discriminating times is counted up based on a predetermined counted value, and when the number thereof is equal to or larger than a determination threshold, the different type discrimination is determined. At this time, at least one of the predetermined counted value and the determination threshold is dynamically set based on a liquid level of a reducing agent tank, so that the counting and/or the different type discriminating determination is performed considering convection which is changed according to a level change to thereby discriminate with high precision whether or not the liquid is the different type of aqueous solution.
摘要翻译： 当由传感器测量的浓度低于预定阈值时，判断液体是任何不同类型的水溶液，并且还判断不同类型的辨别是否足够。 当判断为足够时，基于预定的计数值对不同的类型识别时间的数量进行计数，并且当其数量等于或大于确定阈值时，确定不同的类型辨别。 此时，基于还原剂罐的液面来动态地设定预定计数值和判定阈值中的至少一个，从而进行计数和/或不同种类判别判定，考虑到根据 达到水平变化，从而高精度地辨别液体是否是不同类型的水溶液。
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公开(公告)号：US20090035976A1
公开(公告)日：2009-02-05
申请号：US12177970
申请日：2008-07-23
申请人： Hideki Matsunaga
发明人： Hideki Matsunaga
IPC分类号： H01R13/52
CPC分类号： H01R13/5219 , H01R13/631 , H01R13/73
摘要： A male housing (30) has a tubular part (32) with inner and outer tubes (36, 37) separated by a groove (38). A female housing (10) has a fit-in portion (14) to be fit in the inner tube (36). A seal ring (18) is mounted on the fit-in portion (14) and is compressed between opposed surfaces of the fit-in portion (14) and the outer tube (37). Loosening prevention portions (19) on the fit-in portion (14) fill a gap between the opposed surfaces of the fit-in portion (14) and the inner tube (36) and prevent both housings (10, 30) from being radially loosened.
摘要翻译： 阳壳体（30）具有管状部分（32），内壁和外管（36,37）由凹槽（38）分开。 阴壳体（10）具有配合在内管（36）中的嵌合部分（14）。 密封环（18）安装在装配部分（14）上并且在装配部分（14）和外管（37）的相对表面之间被压缩。 在装配部分（14）上的松动防止部分（19）填充了装配部分（14）和内管（36）的相对表面之间的间隙，并且防止两个壳体（10,30）径向地 松动
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