公开(公告)号：US5369956A

公开(公告)日：1994-12-06

申请号：US53009

申请日：1993-04-27

Applicant: Helmut Daudel ,  Klaus-Jurgen Marquardt ,  Uwe Gartner

Inventor： Helmut Daudel ,  Klaus-Jurgen Marquardt ,  Uwe Gartner

IPC: B01D53/86 ,  B01D53/94 ,  F01N3/20 ,  F01N3/30 ,  F01N9/00 ,  F02B3/06

CPC classification number: F01N3/208 ,  B01D53/8696 ,  B01D53/9409 ,  B01D53/9495 ,  F01N2560/021 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/1622 ,  F01N3/30 ,  F02B3/06 ,  Y02T10/24

Abstract: An exhaust gas aftertreatment device for internal combustion engines having a catalyzer for the selective catalytic reduction of oxides of nitrogen from exhaust gases of motor vehicle diesel engines, provides overstoichiometric supply of NH.sub.3 or materials releasing NH.sub.3. A first sensor records the NH.sub.3 concentration contained in the exhaust gas and interrupts the supply of the NH.sub.3 quantity when a specified upper threshold value is reached. A second sensor records the NH.sub.3 adsorbed in the catalyzer, by way of which the NH.sub.3 supply is resumed on reaching a specified lower threshold value. Alternatively, only one NH.sub.3 sensor is provided in the exhaust gas aftertreatment device. The NH.sub.3 concentration determined by this single sensor is compared, as the actual value, with a required value corresponding to a specified NH.sub.3 concentration in order to form a correction signal which is used for triggering the metering appliance continuously connected into the gas phase.

Abstract translation: 具有用于选择性催化还原机动车辆柴油发动机废气中的氮氧化物的催化剂的内燃机的废气后处理装置提供了NH 3的释放化学计量的供给或释放NH 3的物质。 当达到规定的上限阈值时，第一个传感器记录废气中含有的NH3浓度，并中断NH3量的供应。 第二个传感器记录吸附在催化剂中的NH 3，NH3供应在达到指定的较低阈值时恢复。 或者，排气后处理装置中仅设置一个NH 3传感器。 将由该单个传感器确定的NH 3浓度作为实际值与对应于指定NH 3浓度的所需值进行比较，以形成用于触发连续连接到气相中的计量设备的校正信号。

公开(公告)号：US4843558A

公开(公告)日：1989-06-27

申请号：US67276

申请日：1987-06-29

Applicant: Horst Bergmann ,  Helmut Daudel ,  Burkhard Brandner ,  Klemens Klueppel

Inventor： Horst Bergmann ,  Helmut Daudel ,  Burkhard Brandner ,  Klemens Klueppel

IPC: F02B1/04 ,  F02D41/14 ,  F02D41/24

CPC classification number: F02D41/1479 ,  F02D41/2422 ,  F02B1/04

Abstract: A regulation for a gas engine with a rotational speed probe for the crankshaft rotational speed, with a rotational speed-load-ignition angle-performance graph memory read out during each crankshaft rotation, with an ignition pulse generator controlled by the performance graph memory, with a lambda-probe, with a load probe, with a vacuum-controlled gas pressure adjusting device for the propulsion gas and with a flow-mixing device for the propulsion gas and the air. The invention provides a regulation for a gas engine which offers a full utilization of the possibilities of the gas engine above all in lean operation and in the partial load range. A rotational speed-load-lambda-performance graph (36) is provided for producing lambda-desired values. The lambda-desired values readied by the rotational speed-load-lambda-performance graph (36) are compared with the lambda-actual values under formation of a lambda difference value. For the adaptation of the ignition angle to the respective lambda actual value a lambda-difference value-load-ignition angle correction value performance graph (29) produces an ignition angle correction value which is added to the base ignition angle value of the rotational speed-load-ignition angle-performance graph (27), respectively, is subtracted therefrom.

Abstract translation: 具有用于曲轴转速的转速探头的燃气发动机的调节，在每个曲轴旋转期间读出旋转速度 - 负载 - 点火角度 - 性能图形存储器，以及由性能图存储器控制的点火脉冲发生器， 具有负载探针的λ探针，具有用于推进气体的真空控制气体压力调节装置和用于推进气体和空气的流动混合装置。 本发明提供了一种用于燃气发动机的调节，其提供了在稀薄运行和部分负载范围中首先全部利用燃气发动机的可能性。 提供旋转速度 - 负载 - 拉伸性能图（36）用于产生λ期望值。 将旋转速度 - 载荷 - 拉伸 - 性能图（36）准备的λ期望值与λ差值形成时的λ-实际值进行比较。 为了使点火角适应于相应的λ实际值，λ-差值 - 负载 - 点火角度校正值性能曲线图（29）产生一个点火角校正值，该点火角校正值被加到转速 - 负载点火角度性能图（27）分别从其中减去。

公开(公告)号：US4324572A

公开(公告)日：1982-04-13

申请号：US237899

申请日：1981-02-25

Applicant: Hans Erdmannsdorfer ,  Horst Bergmann ,  Helmut Daudel

Inventor： Hans Erdmannsdorfer ,  Horst Bergmann ,  Helmut Daudel

IPC: F01N3/021 ,  F01N13/18 ,  B01D46/02 ,  F01N3/02

CPC classification number: F01N13/1811 ,  F01N3/0212 ,  F01N2260/10 ,  F01N2330/10 ,  F01N2450/24 ,  F01N2470/02 ,  F01N2470/12 ,  F01N2470/16 ,  F01N2470/18 ,  Y02T10/20 ,  Y10S55/30

Abstract: A soot filter arrangement for an exhaust gas flow of an internal combustion engine, especially an air-compressing internal combustion engine. The filter arrangement includes a housing with feed and discharge connections for the exhaust gas stream in a mineral filter material arranged in the housing. The material is provided on a support pipe equipped with passage openings which enable the exhaust gas stream to enter the support pipe in a radial direction and leave the same in an axial direction. Several support pipes are provided at a mutual spacing in a parallel relationship and the filter material includes a thread of spun silicon dioxide fibers wound onto the support pipes.

Abstract translation: 一种用于内燃机，特别是空气压缩内燃机的废气流的烟灰过滤装置。 过滤器装置包括壳体，其具有用于布置在壳体中的矿物过滤材料中的排气流的进料和排出连接。 该材料设置在配备有通道开口的支撑管上，该通道开口能够使排气流径向进入支撑管并沿轴向保持。 以相互间隔的平行关系提供多个支撑管，并且过滤材料包括缠绕在支撑管上的纺丝二氧化硅纤维的螺纹。