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1. 发明授权

US06408619B1 Method and device for reducing the nitrogen oxides in the exhaust gas of a combustion system 有权
标题翻译：用于还原燃烧系统的废气中的氮氧化物的方法和装置
公开(公告)号：US06408619B1
公开(公告)日：2002-06-25
申请号：US09596893
申请日：2000-06-19
申请人： Gerhard Wissler , Günther Pajonk , Manfred Weigl , Lothar Hofmann
发明人： Gerhard Wissler , Günther Pajonk , Manfred Weigl , Lothar Hofmann
IPC分类号： F01N300
CPC分类号： F01N3/2066 , B01D53/8696 , B01D53/9431 , B01D53/9495 , F01N2610/02 , F01N2900/1818 , Y02T10/24
摘要： When determining the amount of a reducing agent solution to be introduced into the exhaust gas of a combustion system, in particular of a diesel engine, for catalytically reducing the nitrogen oxides by the SCR process, the concentration of the reducing agent in the reducing agent solution as well as the parameters characterizing the operating state of the combustion system, the exhaust gas and/or the catalyst are taken into consideration. As a result, the safety margin with respect to a theoretically optimum amount to be introduced that is required to avoid a leakage of reducing agent can be reduced, whereby the conversion rate of the nitrogen oxides is improved.
摘要翻译：当确定要引入到燃烧系统（特别是柴油发动机）的废气中的还原剂溶液的量以通过SCR方法催化还原氮氧化物时，还原剂溶液中还原剂的浓度以及表征燃烧系统的运行状态的参数，废气和/或催化剂被考虑在内。结果，可以减少为了避免还原剂泄漏而需要引入的理论上最佳量的安全裕度，从而提高氮氧化物的转化率。

2. 发明授权

US06442932B1 Method and device for the catalytic reduction of nitrogen oxides contained in the off-gas from a combustion system 有权
标题翻译：用于从燃烧系统催化还原包含在废气中的氮氧化物的方法和装置
公开(公告)号：US06442932B1
公开(公告)日：2002-09-03
申请号：US09695519
申请日：2000-10-24
申请人： Lothar Hofmann , Günther Pajonk , Manfred Weigl , Gerhard Wissler
发明人： Lothar Hofmann , Günther Pajonk , Manfred Weigl , Gerhard Wissler
IPC分类号： F01N300
CPC分类号： F01N3/208 , B01D53/9431 , B01D53/9495 , B60K2015/03348 , F01N2560/06 , F01N2610/02 , F01N2610/146 , F01N2900/08 , F01N2900/1806 , F01N2900/1811 , F01N2900/1818 , F23J15/003 , F23J2215/10 , F23J2219/10 , Y02A50/2325 , Y02T10/24
摘要： To ensure the maximum possible conversion of nitrogen oxides in a DeNOx catalytic converter in an off-gas cleaning installation for reducing nitrogen oxides and, at the same time, to prevent the reducing agent which is used for the reduction from escaping into the environment, there is provision for the density of a reducing agent solution to be used to determine the volume of the reducing agent solution which is to be metered. The density is regulated in two ways, in that the temperature of the reducing agent solution is measured using a temperature sensor and set by a temperature-control device.
摘要翻译：为了确保在用于还原氮氧化物的废气净化装置中的DeNOx催化转化器中的氮氧化物的最大可能转化，并且同时为了防止用于还原的还原剂逃逸到环境中，那里是用于确定要计量的还原剂溶液的体积的还原剂溶液的密度的规定。密度以两种方式调节，因为还原剂溶液的温度使用温度传感器测量并由温度控制装置设定。

3. 发明授权

US06223526B1 Dual compartment fuel storage tank 有权
标题翻译：双舱燃油储罐
公开(公告)号：US06223526B1
公开(公告)日：2001-05-01
申请号：US09471293
申请日：1999-12-24
申请人： Gerhard Wissler , Günther Pajonk , Manfred Weigl , Lothar Hofmann
发明人： Gerhard Wissler , Günther Pajonk , Manfred Weigl , Lothar Hofmann
IPC分类号： F01N300
CPC分类号： F02M37/0082 , B60K15/03 , B60K2015/03118 , B60K2015/03348 , B60K2015/0467 , F01N3/2066 , F01N2610/1406 , Y02A50/2325 , Y02T10/24 , Y10S220/905
摘要： A tank for a vehicle having a selective catalytic reduction exhaust gas purification system operating with a reducing agent includes a fuel space for the vehicle fuel and a reducing agent space for the reducing agent. The fuel space and the reducing agent space are combined into a single structural that can be fastened as a whole to the vehicle by brackets on the structural unit. This utilizes the limited space available in any vehicle as efficiently as possible and eliminates the need to provide mounting arrangements for separate fuel and reducing agent tanks.
摘要翻译：具有用还原剂操作的选择性催化还原废气净化系统的车辆用罐包括用于车辆燃料的燃料空间和用于还原剂的还原剂空间。燃料空间和还原剂空间被组合成单个结构，其可以通过结构单元上的支架整体固定到车辆上。这尽可能有效地利用了任何车辆中可用的有限空间，并且不需要为单独的燃料和还原剂罐提供安装装置。

4. 发明授权

US06209313B1 Method of reducing the Nox content in the exhaust gas of a diesel internal combustion engine 失效
标题翻译：减少柴油机内燃机排气中的Nox含量的方法
公开(公告)号：US06209313B1
公开(公告)日：2001-04-03
申请号：US09188723
申请日：1998-11-09
申请人： Gerhard Wissler , Günther Pajonk , Lothar Hofmann , Manfred Weigl
发明人： Gerhard Wissler , Günther Pajonk , Lothar Hofmann , Manfred Weigl
IPC分类号： F01N300
CPC分类号： F01N3/2066 , F01N2430/00 , F01N2610/02 , F02D21/08 , F02D31/008 , F02D41/0235 , F02D41/40 , F02D2250/36 , Y02T10/24 , Y02T10/44
摘要： Excessive NOx emission in a diesel internal combustion engine with SCR exhaust gas treatment is detected by a control unit. The excessive NOx emission value is determined from the catalytic-converter efficiency calculated for the metering of the reducing agent. In response, measures are taken, such as delayed start of the fuel injection, deactivation of a coasting cutoff, reducing an exhaust gas recirculation rate and/or increasing the idling speed. As a result, the NOx content in the untreated exhaust gas drops, the catalytic-converter temperature increases more quickly after a cold start, and the NOx emission is reduced.
摘要翻译：具有SCR排气处理的柴油内燃机中的NOx排放过多由控制单元检测。根据对还原剂的计量计算的催化转化器效率来确定过量的NOx排放值。作为响应，采取措施，例如延迟启动燃料喷射，停止滑行切断，降低废气再循环速率和/或增加怠速。结果，未处理废气中的NOx含量下降，催化转化器温度在冷启动后升高得更快，NOx排放减少。

5. 发明授权

US6082102A NO.sub.x reduction system with a device for metering reducing agents 有权
标题翻译：具有用于计量还原剂的装置的NOx还原系统
公开(公告)号：US6082102A
公开(公告)日：2000-07-04
申请号：US161203
申请日：1998-09-25
申请人： Gerhard Wissler , Gunther Pajonk , Lothar Hofmann , Manfred Weigl , Wieland Mathes , Ronald Neufert , Klaus Wenzlawski , Dietmar Weisensel
发明人： Gerhard Wissler , Gunther Pajonk , Lothar Hofmann , Manfred Weigl , Wieland Mathes , Ronald Neufert , Klaus Wenzlawski , Dietmar Weisensel
IPC分类号： B01D53/86 , B01D53/94 , F01N3/20 , F02D41/26 , F01N3/00
CPC分类号： F01N3/2066 , B01D53/8696 , B01D53/9454 , B01D53/9495 , F01N2610/02 , F02D41/266 , Y02C20/10 , Y02T10/22 , Y02T10/24
摘要： A NO.sub.x reduction system includes an SCR catalytic converter and a metering assembly for reducing agent. A control unit for the reduction system is integrated together with the actuators and sensors as a functional unit at the reducing agent container. This provides savings in terms of lines and plug-in connections, and relieves the burden on the control unit of the internal combustion engine.
摘要翻译： NOx还原系统包括SCR催化转化器和用于还原剂的计量组件。用于还原系统的控制单元与作为功能单元的致动器和传感器一起集成在还原剂容器中。这样可以节省线路和插头连接，并减轻内燃机控制单元的负担。

6. 发明申请

US20080000444A1 Piston for an Internal Combustion Engine, Method for Producing Said Piston and Use of a Copper Alloy in the Production of a Piston 审中-公开
标题翻译：内燃机活塞，生产活塞的方法和铜合金在活塞生产中的应用
公开(公告)号：US20080000444A1
公开(公告)日：2008-01-03
申请号：US10592856
申请日：2005-03-09
申请人： Lothar Hofmann , Klaus Lades , Karl-Heinz Obermeier
发明人： Lothar Hofmann , Klaus Lades , Karl-Heinz Obermeier
IPC分类号： F02F3/00
CPC分类号： F02F3/0084 , C22C9/00 , C22C9/04 , F05C2201/0475
摘要： The invention relates to a piston for an internal combustion engine, which consists of a copper alloy. According to the method for producing such a piston, said piston is produced from a copper alloy. According to the invention, a copper alloy is used in the production of a piston for an internal combustion engine.
摘要翻译：本发明涉及一种由铜合金组成的用于内燃机的活塞。根据制造这种活塞的方法，所述活塞由铜合金制成。根据本发明，铜合金用于生产用于内燃机的活塞。

7. 发明授权

US06620391B2 Process for the catalytic cleaning of the exhaust gas from a combustion plant 失效
公开(公告)号：US06620391B2
公开(公告)日：2003-09-16
申请号：US10201835
申请日：2002-07-24
申请人： Raimund Müller , Lothar Hofmann , Kurt Schardt , Wieland Mathes
发明人： Raimund Müller , Lothar Hofmann , Kurt Schardt , Wieland Mathes
IPC分类号： B01J800
CPC分类号： F01N3/2066 , B01D53/8631 , B01D53/8656 , B01D53/885 , B01F3/04049 , B01F5/0065 , B01F5/045 , B01F2005/0091 , F01N13/0097 , F01N13/017 , F01N2240/20 , F01N2240/40 , F01N2470/22 , F01N2610/02 , Y02T10/24
摘要： Exhaust gas to be cleaned is introduced into a conversion and mixing duct and the exhaust gas flows through the duct along a predetermined longitudinal direction. A reducing agent, such as aqueous urea solution, is injected into the exhaust gas stream in the conversion and mixing duct. The exhaust gas stream is then deflected into a reaction duct which extends parallel to or coaxially around the conversion and mixing duct. The exhaust gas then flows in the opposite direction through the reaction duct. A reduction catalyst is disposed in the reaction duct, where the reducible components of the exhaust gas are reduced. The exhaust gas cleaned in this manner is then discharged from the reaction duct.

8. 发明授权

US5974789A Method and device for decomposing nitrogen oxides in the exhaust gas of an internal combustion engine 失效
标题翻译：用于分解内燃机废气中的氮氧化物的方法和装置
公开(公告)号：US5974789A
公开(公告)日：1999-11-02
申请号：US28235
申请日：1998-02-23
申请人： Wieland Mathes , Lothar Hofmann , Detlev Schoppe , Erwin Achleitner , Rainer Tost
发明人： Wieland Mathes , Lothar Hofmann , Detlev Schoppe , Erwin Achleitner , Rainer Tost
IPC分类号： F02B37/00 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/28 , F01N3/30 , F01N3/32 , F01N3/36 , F02B33/44 , F02B37/16 , F01N3/00
CPC分类号： F01N3/2066 , B01D53/9431 , B01D53/9495 , F01N3/32 , F02B33/44 , F02B37/168 , F01N2610/02 , Y02T10/144 , Y02T10/24
摘要： A method and a device for decomposing nitrogen oxides in an exhaust gas of an internal combustion engine, include feeding the exhaust gas and a reactant which is sprayed into the exhaust gas through the use of compressed air, to a catalytic converter. A compressor for supplying compressed air is associated with the internal combustion engine, and part of the compressed air is diverted and used as the compressed air for injecting the reactant. The sprayed reactant is fed to the catalytic converter, together with the exhaust gas to be purified, which ensures the decomposition of the nitrogen oxides, in particular according to the method of selective catalytic reaction.
摘要翻译：一种用于分解内燃机废气中的氮氧化物的方法和装置，包括将废气和通过使用压缩空气喷射到废气中的反应物进料到催化转化器。用于供应压缩空气的压缩机与内燃机相关联，并且一部分压缩空气被转向并用作用于注入反应物的压缩空气。将喷射的反应物与待纯化的废气一起进料到催化转化器，这确保氮氧化物的分解，特别是根据选择性催化反应的方法。

9. 发明授权

US08136243B2 Method for producing a piston for an internal combustion engine and the thus produced piston 失效
标题翻译：一种用于制造用于内燃机的活塞和由此产生的活塞的方法
公开(公告)号：US08136243B2
公开(公告)日：2012-03-20
申请号：US12088117
申请日：2006-08-09
申请人： Simon Reichstein , Lothar Hofmann , Peter Konrad
发明人： Simon Reichstein , Lothar Hofmann , Peter Konrad
IPC分类号： B23P15/10
CPC分类号： B23P15/10 , F02F3/22 , F02F2003/0061 , F16J1/09 , Y10T29/49249 , Y10T29/49254 , Y10T29/49263 , Y10T29/49265
摘要： The invention relates to a method for producing an internal combustion engine piston which is provided with at least one cooling channel (12) and at least one reinforced piston ring groove (14) consisting in producing a piston blank (1), in forming a groove (10) provided with a cooling channel (12) and an external ring (11) in said piston blank (1), in filling the cooling channel (12) with are movable material (2), in filling the external ring with a reinforcing material (3) in removing the removable material (2) and in finish-machining the piston. A piston made of aluminum alloy and produced according to the inventive method is also disclosed.
摘要翻译：本发明涉及一种生产内燃机活塞的方法，该内燃机活塞设有至少一个冷却通道（12）和至少一个加强的活塞环槽（14），该活塞环槽（14）由制造活塞坯件（1）组成，（10），在所述活塞坯件（1）中设置有冷却通道（12）和外环（11），用可移动材料（2）填充所述冷却通道（12），用加强件材料（3）在去除可移除材料（2）和精加工活塞时。还公开了根据本发明的方法制造的由铝合金制成的活塞。

10. 发明授权

US06539708B1 Metering system 有权
标题翻译：计量系统
公开(公告)号：US06539708B1
公开(公告)日：2003-04-01
申请号：US09640152
申请日：2000-08-16
申请人： Lothar Hofmann , Wieland Mathes
发明人： Lothar Hofmann , Wieland Mathes
IPC分类号： F01N300
CPC分类号： F01N3/2066 , B01D53/8631 , B01D53/8696 , B01D53/90 , B01D53/9431 , B01D53/9495 , B01F5/0268 , F01N2240/20 , F01N2260/024 , F01N2570/14 , F01N2610/02 , F01N2610/102 , F01N2610/11 , F01N2610/1453 , F01N2610/1473 , F23J15/003 , Y02T10/24
摘要： A metering system in a combustion unit having an exhaust-gas chamber and a reducing agent reservoir includes an electrically controllable valve for introducing the reducing agent into the exhaust-gas chamber without using compressed air. The valve has an outlet opening that opens directly into the exhaust-gas chamber. The outlet opening is fluidically connected to the reservoir through the valve. The metering system can be produced with only little technical outlay. The metering system includes a recirculating circuit, and the valve has a holding chamber for the reducing agent. The holding chamber is disposed downstream of the outlet opening in a reducing agent flow direction, and is fluidically connected into the recirculating circuit. The metering system includes a coolant circuit for cooling the valve. The valve and its outlet opening is disposed in the exhaust-gas chamber to position the principal axis of the valve at an angle of less than 90° with respect to a principal direction of flow of exhaust gas in the exhaust-gas chamber. The metering system includes a baffle disposed in the exhaust-gas chamber to cause a change in direction of reducing agent introduced therein. The combustion unit can be a diesel engine, and the reducing agent can be a urea solution.
摘要翻译：在具有废气室和还原剂储存器的燃烧单元中的计量系统包括用于将还原剂引入排气室而不使用压缩空气的电可控阀。该阀具有直接进入废气室的出口。出口开口通过阀流体连接到储存器。计量系统只能用很少的技术支出生产。计量系统包括循环回路，并且该阀具有用于还原剂的保持室。保持室以还原剂流动方向设置在出口开口的下游，并且流体连接到再循环回路中。计量系统包括用于冷却阀的冷却剂回路。阀及其出口开口设置在废气室中，以相对于废气室中废气流动的主要方向将阀的主轴定位成小于90°的角度。计量系统包括设置在废气室中的挡板，以引起其中引入的还原剂的方向改变。燃烧单元可以是柴油发动机，还原剂可以是尿素溶液。

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