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1.发明授权公开(公告)号：US09890682B2
公开(公告)日：2018-02-13
申请号：US15094709
申请日：2016-04-08
申请人： Caterpillar Inc.
CPC分类号： B01D53/9495 , B01D53/90 , B01D53/9431 , B01D53/9436 , B01D53/9477 , B01D2251/2062 , B01D2251/2067 , B01D2255/1021 , B01D2255/1023 , B01D2255/104 , B01D2255/106 , B01D2255/20738 , B01D2255/20753 , B01D2255/20761 , B01D2257/404 , B01D2257/406 , B01D2257/702 , F01N3/2066 , F01N3/2892 , F01N2240/20 , F01N2510/00 , F01N2610/02 , F01N2610/10
摘要： An exhaust system for a diesel engine is provided. The exhaust system includes a component body with a surface, and a surface treatment disposed on some of the surface or all of the surface. The surface treatment is disposed so as to receive Diesel Exhaust Fluid (DEF) injected into the exhaust system during operation of the diesel engine. The surface treatment facilitates increased heat transfer to the received DEF to promote water evaporation and urea thermolysis of the received DEF.
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公开(公告)号：US09360463B1
公开(公告)日：2016-06-07
申请号：US14633510
申请日：2015-02-27
申请人： Caterpillar Inc.
CPC分类号： G01N31/10 , B01J19/00 , B01J19/0046 , G01N31/00
摘要： A method for testing a condition of a catalyst is provided. The method includes providing a gas source in communication with the catalyst. The method also includes passing compressed gas from the gas source over the catalyst at normal operating temperature. The method further includes invoking a reaction with the catalyst based on the passage of the compressed gas. The method includes measuring a performance of the catalyst based on the reaction.
摘要翻译： 提供了一种用于测试催化剂条件的方法。 该方法包括提供与催化剂连通的气源。 该方法还包括在正常操作温度下将来自气体源的压缩气体通过催化剂。 该方法还包括基于压缩气体的通过引起与催化剂的反应。 该方法包括基于反应测量催化剂的性能。
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公开(公告)号：US10746071B2
公开(公告)日：2020-08-18
申请号：US15967617
申请日：2018-05-01
申请人： Caterpillar Inc.
摘要： A method and system for treating engine exhaust gas of an engine system is disclosed. The method includes generating ammonia from a urea supply, supplying the ammonia to the engine exhaust gas upstream of a catalyst device, and supplying urea to the engine exhaust gas downstream of the supplying of the ammonia, and downstream of the catalyst device.
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公开(公告)号：US09849416B2
公开(公告)日：2017-12-26
申请号：US14887419
申请日：2015-10-20
申请人： Caterpillar Inc.
CPC分类号： B01D46/006 , B01D46/0068 , B01D2279/30 , F01N3/023 , F01N3/0232
摘要： A method for cleaning an exhaust filter system is provided. The method includes removing ash from a first end of the exhaust particulate filter system using compressed air from the second end of the exhaust particulate filter system. The method also includes entraining particles from a second end of the exhaust particulate filter system using low pressure air. The method further includes blowing ash from the first end of the exhaust particulate filter system using compressed air from the second end of the exhaust particulate filter system. The method further includes removing the entrained particles from the second end of the exhaust particulate filter system.
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公开(公告)号：US09587538B2
公开(公告)日：2017-03-07
申请号：US15071319
申请日：2016-03-16
申请人： Caterpillar Inc.
CPC分类号： F01N3/0224 , B01D46/30 , B01D53/04 , B01D53/9431 , B01D53/944 , B01D2257/553 , B01D2258/0283 , F01N3/0237 , F01N3/035 , F01N3/2803 , F01N2250/02 , F01N2330/00 , F01N2330/30 , Y02T10/24
摘要： An exhaust system including an upstream portion, a downstream portion, a service access, and a silica filter defines an exhaust gas flow path. The downstream portion includes an aftertreatment component. The service access is between the upstream portion and the downstream portion. The silica filter includes a silica filter element and a housing enclosing the silica filter element. The housing includes a filter gas inlet and a filter gas outlet, and defines a filter flow path through the silica filter element between the filter gas inlet and the filter gas outlet. The silica filter element is configured to filter silica from exhaust gases of the engine and structured to create a uniform distribution of silica throughout the silica filter element. The silica filter is configured to be removed and replaced through the service access. The exhaust gas flow path includes the filter flow path.
摘要翻译： 包括上游部分，下游部分，服务通道和二氧化硅过滤器的排气系统限定废气流动路径。 下游部分包括后处理部件。 服务访问位于上游部分和下游部分之间。 二氧化硅过滤器包括二氧化硅过滤元件和封装二氧化硅过滤器元件的壳体。 壳体包括过滤气体入口和过滤气体出口，并且限定通过过滤气体入口和过滤气体出口之间的二氧化硅过滤器元件的过滤器流动路径。 二氧化硅过滤器元件被配置为从发动机的废气中过滤二氧化硅并且被构造成在整个二氧化硅过滤器元件中产生二氧化硅的均匀分布。 二氧化硅过滤器被配置为通过服务访问被移除和替换。 排气流路包括过滤器流路。
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