公开(公告)号：US06343468B1

公开(公告)日：2002-02-05

申请号：US09369716

申请日：1999-08-06

Applicant: Winfried Doelling ,  Lothar Hofmann ,  Wieland Mathes

Inventor： Winfried Doelling ,  Lothar Hofmann ,  Wieland Mathes

IPC: F01N300

CPC classification number: F01N3/208 ,  B01D53/8631 ,  B01D53/8696 ,  B01D53/90 ,  B01D53/9431 ,  B01D53/9495 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2610/146 ,  Y02T10/24

Abstract: A method and a device for controlling a combustion system, in particular an internal combustion engine, and for catalytic cleaning of exhaust gases, as well as a combustion system, catalytically remove a noxious substance from the exhaust gas with the aid of a fluid which is added in a metered manner to the noxious substance. A desired value for a mass flow of the noxious substance in the exhaust gas is prescribed in order to control the combustion system. In this way, the metered addition of the fluid in accordance with the mass flow of the noxious substance is substantially simplified.

Abstract translation: 用于控制燃烧系统，特别是内燃机，以及用于排气的催化清洗的方法和装置，以及燃烧系统，借助于流体，从废气中催化除去有害物质 以有计量的方式加入有害物质。 规定排气中的有害物质的质量流量的期望值，以便控制燃烧系统。 以这种方式，基本上简化了根据有害物质的质量流量计量加入流体。

公开(公告)号：US6082102A

公开(公告)日：2000-07-04

申请号：US161203

申请日：1998-09-25

Applicant: Gerhard Wissler ,  Gunther Pajonk ,  Lothar Hofmann ,  Manfred Weigl ,  Wieland Mathes ,  Ronald Neufert ,  Klaus Wenzlawski ,  Dietmar Weisensel

Inventor： Gerhard Wissler ,  Gunther Pajonk ,  Lothar Hofmann ,  Manfred Weigl ,  Wieland Mathes ,  Ronald Neufert ,  Klaus Wenzlawski ,  Dietmar Weisensel

IPC: B01D53/86 ,  B01D53/94 ,  F01N3/20 ,  F02D41/26 ,  F01N3/00

CPC classification number: F01N3/2066 ,  B01D53/8696 ,  B01D53/9454 ,  B01D53/9495 ,  F01N2610/02 ,  F02D41/266 ,  Y02C20/10 ,  Y02T10/22 ,  Y02T10/24

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06737033B1

公开(公告)日：2004-05-18

申请号：US09677356

申请日：2000-10-02

Applicant: Lothar Hofmann ,  Wieland Mathes

Inventor： Lothar Hofmann ,  Wieland Mathes

IPC: B01D5356

CPC classification number: F01N3/208 ,  B01D53/90 ,  B01D53/9454 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/08 ,  F01N2900/14 ,  Y02T10/22 ,  Y02T10/24

Abstract: The method and the device are configured for the catalytic removal of a pollutant contained in an exhaust gas of a combustion system using a reagent. A temporal mean, or time average, is formed for the concentration of the pollutant in the exhaust gas. The catalytic converter is laid out for complete conversion if the reagent is introduced stoichiometrically. Here, the reagent is introduced in substoichiometric proportions with respect to the time average of the pollutant content.

Abstract translation: 该方法和装置被配置用于使用试剂催化除去包含在燃烧系统的废气中的污染物。 为排气中污染物的浓度形成时间平均值或时间平均值。 如果试剂以化学计量的方式引入，则催化转化器布置成完全转化。 这里，相对于污染物含量的时间平均值，以化学计量比例引入试剂。

公开(公告)号：US5884475A

公开(公告)日：1999-03-23

申请号：US816365

申请日：1997-03-13

Applicant: Lothar Hofmann ,  Ronald Neufert ,  Wieland Mathes

Inventor： Lothar Hofmann ,  Ronald Neufert ,  Wieland Mathes

IPC: F01N3/08 ,  B01D53/86 ,  B01D53/94 ,  F01N3/20 ,  F01N3/24 ,  F23J15/00 ,  F23J15/02 ,  F01N3/00

CPC classification number: F01N3/2066 ,  B01D53/9431 ,  B01D53/9495 ,  F23J15/003 ,  F01N2240/02 ,  F01N2240/16 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/10 ,  F01N2610/1406 ,  F01N2610/1486 ,  F01N2610/1493 ,  Y02T10/24

Abstract: Nitrogen oxides emitted by an internal-combustion engine operated with excess air are normally converted by the method of selective catalytic reduction by bringing the nitrogen oxides, together with ammonia, into contact with a selective catalyst. Due to the dangers associated with the use of ammonia, in a motor vehicle ammonia should only be carried in the form of a substance which liberates ammonia, generally an aqueous urea solution. A method and a device for introducing liquid into an exhaust-gas purification system according to the invention avoids frost damage to sections of the system during shutdown times and permits operation of the system at temperatures below the freezing point of the reducing agent solution being used. The method and device include a (thermally insulated) reservoir for the reducing agent liquid and a liquid supply line which is connected thereto and terminates in an outlet opening for the liquid. The reservoir and the liquid supply line can be heated. Furthermore, a heater is provided for liquefying a starting volume which is small as compared with the volume of the reservoir. The liquid supply line may also have a back-flush valve to which a gas that is under pressure can be applied. The supply line can consequently be blown free.

Abstract translation: 由过量空气运行的内燃机排放的氮氧化物通常通过使氮氧化物与氨与选择性催化剂接触而通过选择性催化还原的方法转化。 由于与使用氨有关的危险，在机动车辆中，氨只应以释放氨（通常为尿素水溶液）的物质的形式运载。 根据本发明的用于将液体引入排气净化系统的方法和装置避免了在关闭时间期间对系统的部分的霜冻损坏，并且允许系统在低于所使用的还原剂溶液的凝固点的温度下操作。 该方法和装置包括用于还原剂液体的（隔热）储存器和连接到其上的终止于液体出口的液体供应管线。 储存器和液体供应管线可以被加热。 此外，提供了一种用于液化与储存器的体积相比小的起始体积的加热器。 液体供应管线还可以具有可以施加压力下的气体的后冲洗阀。 因此，供应线可以自由吹制。

公开(公告)号：US20080000444A1

公开(公告)日：2008-01-03

申请号：US10592856

申请日：2005-03-09

Applicant: Lothar Hofmann ,  Klaus Lades ,  Karl-Heinz Obermeier

Inventor： Lothar Hofmann ,  Klaus Lades ,  Karl-Heinz Obermeier

IPC: F02F3/00

CPC classification number: F02F3/0084 ,  C22C9/00 ,  C22C9/04 ,  F05C2201/0475

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08136243B2

公开(公告)日：2012-03-20

申请号：US12088117

申请日：2006-08-09

Applicant: Simon Reichstein ,  Lothar Hofmann ,  Peter Konrad

Inventor： Simon Reichstein ,  Lothar Hofmann ,  Peter Konrad

IPC: B23P15/10

CPC classification number: B23P15/10 ,  F02F3/22 ,  F02F2003/0061 ,  F16J1/09 ,  Y10T29/49249 ,  Y10T29/49254 ,  Y10T29/49263 ,  Y10T29/49265

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06408619B1

公开(公告)日：2002-06-25

申请号：US09596893

申请日：2000-06-19

Applicant: Gerhard Wissler ,  Günther Pajonk ,  Manfred Weigl ,  Lothar Hofmann

Inventor： Gerhard Wissler ,  Günther Pajonk ,  Manfred Weigl ,  Lothar Hofmann

IPC: F01N300

CPC classification number: F01N3/2066 ,  B01D53/8696 ,  B01D53/9431 ,  B01D53/9495 ,  F01N2610/02 ,  F01N2900/1818 ,  Y02T10/24

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07507684B2

公开(公告)日：2009-03-24

申请号：US11647889

申请日：2006-12-29

Applicant: Lothar Hofmann ,  Jörg Münch ,  Ralf Dotzel

Inventor： Lothar Hofmann ,  Jörg Münch ,  Ralf Dotzel

IPC: B01J29/06

CPC classification number: B01D53/9418 ,  B01D2251/2067 ,  B01D2255/2065 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2258/012 ,  B01J29/46 ,  B01J29/7615 ,  B01J35/04 ,  B01J37/0009 ,  B01J2229/186 ,  B01J2229/42

Abstract: The invention relates to an extruded solid catalyst body for breaking down nitrogen oxides in the presence of a reducing agent as well as to a process for manufacture of said body. The solid catalyst body has an active material that contains 60 to 87% by weight of an ion-exchanged zeolite containing at least one metal from the group containing Cu, Hf, La, Au, In, V, lanthanoids and transition metals of group VIII of the periodic system, more than 10 to 37% by weight of aluminum oxide and 2 to 10% by weight of inorganic fibers. The solid catalyst body, the active material of which contains a zeolite can be manufactured by extrusion and has a high degree of mechanical stability at a high catalytic activity.

Abstract translation: 本发明涉及用于在还原剂存在下分解氮氧化物的挤出固体催化剂体以及制造所述体的方法。 固体催化剂体具有含有60〜87重量％的含有Cu，Hf，La，Au，In，V，镧系元素和VIII族过渡金属的至少一种金属的离子交换沸石的活性物质 的超过10至37重量％的氧化铝和2至10重量％的无机纤维。 其活性物质含有沸石的固体催化剂体可以通过挤出制造，并且在高催化活性下具有高度的机械稳定性。

公开(公告)号：US20080250640A1

公开(公告)日：2008-10-16

申请号：US12088117

申请日：2006-08-09

Applicant: Simon Reichstein ,  Lothar Hofmann ,  Peter Konrad

Inventor： Simon Reichstein ,  Lothar Hofmann ,  Peter Konrad

IPC: B23P15/10

CPC classification number: B23P15/10 ,  F02F3/22 ,  F02F2003/0061 ,  F16J1/09 ,  Y10T29/49249 ,  Y10T29/49254 ,  Y10T29/49263 ,  Y10T29/49265

Abstract: 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 aluminium alloy and produced according to the inventive method is also disclosed.

Abstract translation: 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。

公开(公告)号：US06471927B2

公开(公告)日：2002-10-29

申请号：US09776952

申请日：2001-02-05

Applicant: Lothar Hofmann ,  Klaus Rusch

Inventor： Lothar Hofmann ,  Klaus Rusch

IPC: B01D5354

CPC classification number: C01C1/086 ,  B01D53/8625 ,  B01D53/90 ,  B01J19/126 ,  B01J2219/1218 ,  B01J2219/32466 ,  C01C1/08

Abstract: A microwave hydrolysis reactor for converting urea into ammonia has one or more reaction chambers into which a urea solution is fed via a feed device and a discharge device for discharging an ammonia-water mixture. A catalytic converter is arranged in the reaction chamber. A microwave-transmitting device allows irradiating so that energy is fed to the urea solution in the reaction chamber.

Abstract translation: 用于将尿素转化成氨的微波水解反应器具有一个或多个反应室，尿素溶液经由进​​料装置和用于排出氨 - 水混合物的排出装置供入尿素溶液。 催化转化器布置在反应室中。 微波发射装置允许照射，使得能量被供给到反应室中的尿素溶液。