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1. 发明授权

US4389382A Method of using a simplified low cost catalyst system 失效
标题翻译：使用简化的低成本催化剂体系的方法
公开(公告)号：US4389382A
公开(公告)日：1983-06-21
申请号：US284763
申请日：1981-07-20
申请人： Haren S. Gandhi , Karen M. Adams
发明人： Haren S. Gandhi , Karen M. Adams
IPC分类号： B01D53/94 , B01J23/64 , B01J23/644 , B01J23/652 , B01J35/02 , B01D53/36 , B01J23/68
CPC分类号： B01D53/945 , B01J23/6527 , Y02T10/22
摘要： There is disclosed a method of using an exhaust gas catalyst for treatment of exhaust gases developed by burning a hydrocarbon based fuel in an internal combustion engine. These exhaust gases contain varying amounts of unburned hydrocarbons, carbon monoxide and oxides of nitrogen depending upon the operating conditions of the internal combustion engine. This specification teaches use of an improved catalyst composition in which a support medium is provided for supporting the catalyst system, the support medium having an upstream support portion and a downstream support portion over which the exhaust gases pass in succession. The upstream support portion of the support medium has palladium deposited thereon and the downstream support portion of the support medium has tungsten deposited thereon. The catalyst system has particular utility as a three-way catalyst operating at approximately stoichiometric conditions or as a catalyst for use in conjunction with the fast burn engines or as an oxidation catalyst.
摘要翻译：公开了一种使用废气催化剂来处理通过在内燃机中燃烧烃类燃料而产生的废气的方法。根据内燃机的运行条件，这些废气含有不同量的未燃烧的烃，一氧化碳和氮的氧化物。本说明书教导了使用改进的催化剂组合物，其中提供支撑介质以支撑催化剂体系，所述载体介质具有上游支撑部分和下游支撑部分，排气通过该下游支撑部分连续通过。支撑介质的上游支撑部分具有沉积在其上的钯，并且支撑介质的下游支撑部分上沉积有钨。该催化剂体系作为在大约化学计量条件下操作的三元催化剂或作为与快速燃烧发动机结合使用的催化剂或作为氧化催化剂的特殊用途。

2. 发明授权

US06502386B1 Catalyst monitoring in a diesel engine 失效
标题翻译：柴油机催化剂监测
公开(公告)号：US06502386B1
公开(公告)日：2003-01-07
申请号：US09631135
申请日：2000-08-02
申请人： Christopher John Mazur , Karen M Adams , Paul Matthew Laing , Robert Henry Hammerle
发明人： Christopher John Mazur , Karen M Adams , Paul Matthew Laing , Robert Henry Hammerle
IPC分类号： F01N300
CPC分类号： F01N9/005 , F01N11/00 , F01N11/005 , F01N2550/02 , Y02T10/47
摘要： A carbon monoxide sensor placed downstream of the catalytic converter and a temperature sensor placed upstream of the converter in a diesel engine provide information to build a real time CO conversion efficiency versus catalyst temperature curve to determine whether a catalyst has deteriorated beyond a predetermined point with respect to On-Board Diagnostic (OBD) requirements. Pre catalyst CO concentration is inferred from the engine operating conditions, and catalyst temperature is determined using the temperature sensor output and the engine exhaust flow heat transfer model. The real time curve is compared to a reference curve to determine catalyst performance. Catalyst performance with respect to CO conversions can then be correlated to that for HC and NOx to meet OBD requirements.
摘要翻译：位于催化转化器下游的一氧化碳传感器和位于柴油发动机转化器上游的温度传感器提供信息，以建立与催化剂温度曲线相关的实时CO转化效率，以确定催化剂是否劣化超过预定点，相对于到车载诊断（OBD）要求。预催化剂CO浓度是根据发动机运行条件推断的，催化剂温度由温度传感器输出和发动机排气流量传热模型确定。将实时曲线与参考曲线进行比较，以确定催化剂性能。然后，与CO转化相关的催化剂性能可以与HC和NOx的性能相关，以符合OBD要求。

3. 发明授权

US4508691A Method for treating exhaust gases with an improved catalyst composition 失效
标题翻译：用改进的催化剂组合物处理废气的方法
公开(公告)号：US4508691A
公开(公告)日：1985-04-02
申请号：US408546
申请日：1982-08-16
申请人： Karen M. Adams , Haren S. Gandhi
发明人： Karen M. Adams , Haren S. Gandhi
IPC分类号： B01D53/94 , B01J23/652 , B01D53/36
CPC分类号： B01D53/945 , B01J23/6527 , Y02T10/22
摘要： There is disclosed a method of using an exhaust gas catalyst for treatment of exhaust gases developed by burning a hydrocarbon fuel or a fuel containing hydrocarbon and alcohol blends in an internal combustion engine. These exhaust gases contain varying amounts of unburned hydrocarbons, carbon monoxide and oxides of nitrogen depending upon the operating conditions of an internal combustion engine. This specification teaches a method of using an improved catalyst composition in which a support medium is provided for supporting the catalyst system. This support medium has deposited thereon palladium and finely divided tungsten. Tungsten is present on the support media in a quantity such that tungsten is available to substantially all of the palladium on the support medium. In this manner, the palladium/tungsten combination is effective in the catalytic oxidation of unburned hydrocarbons and carbon monoxide and the catalytic reduction of oxides of nitrogen without production of significant amounts of ammonia when the internal combustion engine is operating under fuel rich conditions.
摘要翻译：公开了一种使用废气催化剂来处理通过在内燃机中燃烧烃燃料或含有烃和醇共混物的燃料而产生的废气的方法。这些废气根据内燃机的运行条件，含有不同量的未燃碳氢化合物，一氧化碳和氮氧化物。本说明书教导了使用改进的催化剂组合物的方法，其中提供支撑介质以支撑催化剂体系。该载体介质上沉积有钯和细分散的钨。钨在载体介质上的存在量使得钨可用于载体介质上的基本上所有的钯。以这种方式，当内燃机在富燃料条件下运行时，钯/钨组合对未燃烧的烃和一氧化碳的催化氧化和氮氧化物的催化还原是有效的，而不产生大量的氨。

4. 发明授权

US5443660A Water-based no-clean flux formulation 失效
标题翻译：水性无清洁剂配方
公开(公告)号：US5443660A
公开(公告)日：1995-08-22
申请号：US327941
申请日：1994-10-24
申请人： Guilian Gao , Jay D. Baker , Brenda J. Nation , Karen M. Adams
发明人： Guilian Gao , Jay D. Baker , Brenda J. Nation , Karen M. Adams
IPC分类号： B23K35/36 , B23K35/363 , B23K35/34
CPC分类号： B23K35/3618 , B23K35/3612
摘要： A no-VOC or low-VOC no-clean flux formulation for use in the assembly of electronic circuit boards having a conformal coating. The formulation comprises a solvent, a water-soluble weak organic acid, a halide-free, non-ionic surfactant, and a biocidal co-solvent. The formulation is compatible with the conformal coating, permits no or low VOC emissions into the environment, and eliminates post-soldering cleaning steps.
摘要翻译：用于组装具有保形涂层的电子电路板的无VOC或低VOC无清洁助焊剂配方。该制剂包含溶剂，水溶性弱有机酸，不含卤化物的非离子表面活性剂和杀生物剂助溶剂。该配方与保形涂层兼容，不允许或低VOC排放到环境中，并且消除了焊后清洗步骤。

5. 发明授权

US4374103A Method of using a low cost catalyst system 失效
标题翻译：使用低成本催化剂体系的方法
公开(公告)号：US4374103A
公开(公告)日：1983-02-15
申请号：US284762
申请日：1981-07-20
申请人： Haren S. Gandhi , Karen M. Adams
发明人： Haren S. Gandhi , Karen M. Adams
IPC分类号： B01D53/94 , B01J23/64 , B01J23/644 , B01J23/652 , B01J35/02 , B01D53/36
CPC分类号： B01D53/945 , B01J23/6527 , Y02T10/22
摘要： There is disclosed a method of using an exhaust gas catalyst for treatment of exhaust gases developed by burning a hydrocarbon based fuel in an internal combustion engine. These exhaust gases contain varying amounts of unburned hydrocarbons, carbon monoxide and oxides of nitrogen depending upon the operating conditions of the internal combustion engine. This specification teaches the use of an improved catalyst composition in which a support medium is provided for supporting the catalyst system, the support medium having an upstream support portion and a downstream support portion over which the exhaust gases pass in succession. The upstream support portion of the support medium has deposited thereon palladium and the downstream support portion of the support medium has deposited thereon palladium and tungsten. Tungsten is present on the downstream support portion of the support medium in a quantity such that tungsten is available to substantially all of the palladium on that portion of the support medium. The catalyst system has particular utility as a three-way catalyst operating at approximately stoichiometric conditions or as a catalyst for use in conjunction with the so-called "fast burn/low friction" engines or as an oxidation catalyst.
摘要翻译：公开了一种使用废气催化剂来处理通过在内燃机中燃烧烃类燃料而产生的废气的方法。根据内燃机的运行条件，这些废气含有不同量的未燃烧的烃，一氧化碳和氮的氧化物。该说明书教导了使用改进的催化剂组合物，其中提供用于支撑催化剂体系的载体介质，所述载体介质具有上游支撑部分和下游支撑部分，排气通过该下游支撑部分连续通过。支撑介质的上游支撑部分已经在其上沉积有钯，并且载体介质的下游支撑部分已经在其上沉积有钯和钨。钨在支撑介质的下游支撑部分上存在，其量使得钨可用于载体介质的该部分上的基本上所有的钯。该催化剂体系作为在大约化学计量条件下操作的三元催化剂或作为与所谓的“快速燃烧/低摩擦”发动机或氧化催化剂结合使用的催化剂的特殊用途。

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