公开(公告)号：US6109245A

公开(公告)日：2000-08-29

申请号：US401025

申请日：1999-09-21

申请人： Klaus Egger ,  Christian Hoffmann ,  Wendelin Klugl ,  Hellmut Freudenberg ,  Detlev Schoppe

发明人： Klaus Egger ,  Christian Hoffmann ,  Wendelin Klugl ,  Hellmut Freudenberg ,  Detlev Schoppe

IPC分类号： F02D41/06 ,  F02D41/20 ,  F02D41/22 ,  H01L41/04

CPC分类号： H02N2/067 ,  F02D41/062 ,  F02D41/2096 ,  F02D41/221

摘要： An apparatus for driving a piezoelectrically controlled fuel injection valve includes a piezoelectric actuator having a discharging device and preferably a power MOSFET switch connected in parallel therewith. The discharging device is turned on by a monitoring device that is likewise connected in parallel with the piezoelectric actuator if an opening time of the piezoelectric actuator exceeds a predetermined monitoring time. The discharging device and the monitoring device are constructed as an integrated circuit (ASIC) and are integrated in a valve housing. A method for operating the apparatus is also provided.

摘要翻译： 用于驱动压电控制的燃料喷射阀的装置包括具有放电装置的压电致动器，并且优选地与其并联连接的功率MOSFET开关。 如果压电致动器的打开时间超过预定的监视时间，则同样与压电致动器并联连接的监视装置将放电装置接通。 放电装置和监视装置构成集成电路（ASIC）并集成在阀壳体中。 还提供了一种操作该装置的方法。

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。