-
公开(公告)号：US07334461B2
公开(公告)日：2008-02-26
申请号：US11499874
申请日：2006-08-07
申请人： Johann Simperl , Hans Erlach , Kurt Engeljehringer
发明人： Johann Simperl , Hans Erlach , Kurt Engeljehringer
IPC分类号： G01M15/00
CPC分类号： G01M15/102 , G01M15/106
摘要： In a method of measuring exhaust gas of internal combustion engines, preferably in test benches, through the use of CVS (constant value sampling) full-flow systems, the exhaust gas of the internal combustion engine is mixed with combustion gas, preferably air, and the volume flow or mass flow of the combustion air is determined by the CVS full-flow system. This mass flow exceeds thereby the maximum quantity of combustion air needed by the internal combustion engine. An essentially constant and fully conditioned quantity of humidity-conditioned and/or temperature-conditioned combustion gas is fed into the internal combustion engine at any time, whereby this quantity is at least equal to the maximum quantity needed by the internal combustion engine, and whereby combustion gas not needed is fed into the CVS full-flow system, and a pre-determinable set pressure value is adjusted for the combustion gas upstream from the CVS full-flow system and also upstream from the point of conditioning of the combustion gas to be able to use the CVS full-flow systems increasing control dynamics without considerable effects on the entire control system and to avoid thereby dilution of the engine exhaust gases upstream from the CVS full-flow system. An essentially constant and fully conditioned quantity of humidity-conditioned and/or temperature-conditioned combustion gas can possibly be fed at any time into the CVS full-flow system, whereby fully conditioned combustion gas is drawn from the CVS full-flow system upstream from the mixing area to be used by the internal combustion engine.
摘要翻译： 在通过使用CVS（恒定值取样）全流量系统来测量内燃机的废气优选在测试台中的方法中，内燃机的排气与燃烧气体，优选空气混合，以及 燃烧空气的体积流量或质量流量由CVS全流量系统确定。 该质量流超过内燃机所需的最大燃烧空气量。 在任何时间将基本上恒定且经过充分调节的调湿和/或温度调节的燃烧气体的量进料到内燃机中，由此该量至少等于内燃机所需的最大量， 不需要的燃烧气体被供给到CVS全流系统中，并且对于CVS全流系统上游的燃烧气体以及从燃烧气体调节点的上游调整预定的设定压力值 能够使用CVS全流量系统增加控制动力学，而不会对整个控制系统产生相当大的影响，并避免因此CVS全流量系统上游的发动机废气稀释。 可以随时将基本上恒定和完全调节的调湿和/或温度调节的燃烧气体的量进料到CVS全流系统中，从而从CVS全流系统中提取完全调节的燃烧气体 由内燃机使用的混合区域。
-
公开(公告)号：US20070033996A1
公开(公告)日：2007-02-15
申请号：US11499874
申请日：2006-08-07
申请人： Johann Simperl , Hans Erlach , Kurt Engeljehringer
发明人： Johann Simperl , Hans Erlach , Kurt Engeljehringer
CPC分类号： G01M15/102 , G01M15/106
摘要： In a method of measuring exhaust gas of internal combustion engines, preferably in test benches, through the use of CVS (constant value sampling) full-flow systems, the exhaust gas of the internal combustion engine is mixed with combustion gas, preferably air, and the volume flow or mass flow of the combustion air is determined by the CVS full-flow system. This mass flow exceeds thereby the maximum quantity of combustion air needed by the internal combustion engine. An essentially constant and fully conditioned quantity of humidity-conditioned and/or temperature-conditioned combustion gas is fed into the internal combustion engine at any time, whereby this quantity is at least equal to the maximum quantity needed by the internal combustion engine, and whereby combustion gas not needed is fed into the CVS full-flow system, and a pre-determinable set pressure value is adjusted for the combustion gas upstream from the CVS full-flow system and also upstream from the point of conditioning of the combustion gas to be able to use the CVS full-flow systems increasing control dynamics without considerable effects on the entire control system and to avoid thereby dilution of the engine exhaust gases upstream from the CVS full-flow system. An essentially constant and fully conditioned quantity of humidity-conditioned and/or temperature-conditioned combustion gas can possibly be fed at any time into the CVS full-flow system, whereby fully conditioned combustion gas is drawn from the CVS full-flow system upstream from the mixing area to be used by the internal combustion engine.
摘要翻译： 在通过使用CVS（恒定值取样）全流量系统来测量内燃机的废气优选在测试台中的方法中，内燃机的排气与燃烧气体，优选空气混合，以及 燃烧空气的体积流量或质量流量由CVS全流量系统确定。 该质量流超过内燃机所需的最大燃烧空气量。 在任何时间将基本上恒定且经过充分调节的调湿和/或温度调节的燃烧气体的量进料到内燃机中，由此该量至少等于内燃机所需的最大量， 不需要的燃烧气体被供给到CVS全流系统中，并且对于CVS全流系统上游的燃烧气体以及从燃烧气体调节点的上游调整预定的设定压力值 能够使用CVS全流量系统增加控制动力学，而不会对整个控制系统产生相当大的影响，并避免因此CVS全流量系统上游的发动机废气稀释。 可以随时将基本上恒定和完全调节的调湿和/或温度调节的燃烧气体的量进料到CVS全流系统中，从而从CVS全流系统中提取完全调节的燃烧气体 由内燃机使用的混合区域。
-
公开(公告)号：US5243847A
公开(公告)日：1993-09-14
申请号：US728153
申请日：1991-07-10
CPC分类号： G01F25/0007 , G01F1/86 , G01N1/38 , G05D7/0676 , G01N1/2252 , G01N2001/2264 , G01N33/0004
摘要： For the indirect identification of the mass flow of a specimen fluid stre the specimen fluid stream is mixed with a dilution fluid stream to form an total fluid stream that is to be investigated in view of specific constituents of the specimen fluid stream. The mass flow of a specimen fluid stream is identified from the difference between the measured mass flows of the dilution fluid stream and the total fluid stream. In order to reduce the possibilities of error in the setting of a defined dilution ration, the mass flows of the dilution fluid stream and the total fluid stream are calibrated relative to one another, to which end one of the calibration measurements is not undertaken at the respective fluid stream but is separately undertaken at the specimen fluid stream.
摘要翻译： 为了间接识别样品流体流的质量流，将样品流体流与稀释流体流混合以形成考虑到样品流体流的特定组分要研究的总流体流。 根据测量的稀释流体流的质量流与总流体流之间的差异来鉴定样品流体流的质量流量。 为了减少设定定义的稀释比例误差的可能性，稀释流体流和总流体流的质量流量相对于彼此进行校准，为此，校准测量值之一不在 相应的流体流，但是在样品流体流处单独进行。
-
-
搜索结果
3 条记录 (耗时 0.017 秒)
