公开(公告)号：US20130319070A1

公开(公告)日：2013-12-05

申请号：US13907643

申请日：2013-05-31

Applicant: Robert Bosch GmbH

Inventor： Wolfgang Klenk ,  Matthias Burger ,  Reinold Weinmann ,  Wilhelm Dueck

IPC: G01N33/00

CPC classification number: G01N33/00 ,  F01N3/2066 ,  F01N11/00 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2610/142 ,  F01N2610/148 ,  F01N2900/0412 ,  F01N2900/0416 ,  F01N2900/1814 ,  F01N2900/1818 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method for verifying the plausibility of a measuring device for determining a quality of an aqueous urea solution in a reservoir of an SCR catalyst system comprises determining whether a filling of the reservoir has taken place, determining the quality of the aqueous urea solution in the reservoir and detecting whether an error of the measuring device is present or whether the reservoir was filled with an aqueous urea solution, the quality of which deviates from a default value consisting of a filling status of the reservoir and the quality of the aqueous urea solution in said reservoir.

Abstract translation: 一种用于验证用于确定SCR催化剂系统的储存器中的尿素水溶液的质量的测量装置的合理性的方法包括确定是否已经发生储存器的填充，确定储存器中的尿素水溶液的质量 并且检测是否存在测量装置的误差，或者储存器是否填充有尿素水溶液，其质量偏离由所述储存器的填充状态和所述尿素溶液的质量组成的默认值 水库

公开(公告)号：US20160201536A1

公开(公告)日：2016-07-14

申请号：US15075739

申请日：2016-03-21

Applicant: Robert Bosch GmbH

Inventor： Matthias Burger

IPC: F01N3/20 ,  F01N9/00 ,  F01N3/025

CPC classification number: F01N3/208 ,  F01N3/0253 ,  F01N3/08 ,  F01N3/2066 ,  F01N3/36 ,  F01N9/002 ,  F01N2610/14 ,  F01N2610/1433 ,  F01N2610/1453 ,  F01N2900/16 ,  Y02A50/2325 ,  Y02T10/24 ,  Y10T137/85978

Abstract: A method of operating a dosing device. A dosing valve is provided with low-pressure and high-pressure chambers delimited by a piston whose travel is limited to a predefined maximum stroke. A pump operates to deliver the liquid at pre-delivery pressure. The dosing valve actuates under direction of a control unit by opening a 2/2 directional valve to direct the pumped liquid into the low-pressure chamber, and in response, the piston initiates a stroke. The liquid is injected from the high-pressure chamber into the exhaust-gas stream during the stroke of the piston, and the injection stops when the piston reaches maximum stroke. The control unit holds the directional valve open for longer than the piston requires to perform its maximum stroke so that the dosing valve delivers a predetermined volumetric dose of the liquid into the exhaust-gas stream, the predetermined volumetric dose corresponding directly to the maximum stroke of the piston.

Abstract translation: 一种操作计量装置的方法。 计量阀设置有由活塞限定的行程限制在预定的最大行程的低压和高压室。 泵用于在输送前压力下输送液体。 定量阀通过打开2/2方向阀将泵送的液体引导到低压室中，在控制单元的方向下致动，并且作为响应，活塞启动行程。 在活塞行程期间，液体从高压室注入废气流中，当活塞达到最大行程时，喷射停止。 控制单元将换向阀保持比活塞需要的时间长，以执行其最大行程，使得计量阀将预定的体积剂量的液体输送到排气流中，预定的体积剂量直接对应于最大冲程 活塞。

公开(公告)号：US09574477B1

公开(公告)日：2017-02-21

申请号：US15251109

申请日：2016-08-30

Applicant: Robert Bosch GmbH

Inventor： Matthias Burger

IPC: F01N3/00 ,  F01N3/20 ,  F01N9/00 ,  F04B19/22 ,  F04B17/04 ,  F04B49/06

CPC classification number: F01N3/206 ,  F01N9/00 ,  F01N2390/02 ,  F01N2610/144 ,  F01N2610/1473 ,  F01N2610/1486 ,  F01N2610/1493 ,  F04B17/04 ,  F04B19/22 ,  F04B49/06 ,  F04B49/065 ,  F04B2201/0209 ,  F04B2203/0401

Abstract: A method for operating a reagent metering system which meters a reagent into an exhaust duct of an internal combustion engine upstream of an SCR catalytic converter, in which, after the metering operation is ended, at least part of the reagent metering system is emptied by back-suction by means of a reciprocating pump. The procedure according to the invention is distinguished in that during the back-suction, a stop determination determines the flight time of a reciprocating piston of the reciprocating pump from a starting time as far as the stop time, in that a comparator compares the flight time determined with a flight time threshold value, and in that the activation power of the reciprocating pump is reduced if the flight time determined is less than the flight time threshold value.

Abstract translation: 一种用于操作试剂计量系统的方法，该试剂计量系统将试剂计量​​到SCR催化转化器上游的内燃机的排气管道中，其中在计量操作结束之后，至少部分试剂计量系统被倒空 通过往复泵进行。 根据本发明的过程的区别在于，在背吸时，停止确定确定往复泵的往复活塞从起动时间到停止时间的飞行时间，因为比较器比较飞行时间 由飞行时间阈值确定，并且如果确定的飞行时间小于飞行时间阈值，则往复泵的启动功率降低。

公开(公告)号：US09239320B2

公开(公告)日：2016-01-19

申请号：US13907643

申请日：2013-05-31

Applicant: Robert Bosch GmbH

Inventor： Wolfgang Klenk ,  Matthias Burger ,  Reinold Weinmann ,  Wilhelm Dueck

IPC: G01N33/00 ,  F01N3/20 ,  F01N11/00 ,  F01N3/04

CPC classification number: G01N33/00 ,  F01N3/2066 ,  F01N11/00 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2610/142 ,  F01N2610/148 ,  F01N2900/0412 ,  F01N2900/0416 ,  F01N2900/1814 ,  F01N2900/1818 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method for verifying the plausibility of a measuring device for determining a quality of an aqueous urea solution in a reservoir of an SCR catalyst system comprises determining whether a filling of the reservoir has taken place, determining the quality of the aqueous urea solution in the reservoir and detecting whether an error of the measuring device is present or whether the reservoir was filled with an aqueous urea solution, the quality of which deviates from a default value consisting of a filling status of the reservoir and the quality of the aqueous urea solution in said reservoir.

Abstract translation: 一种用于验证用于确定SCR催化剂系统的储存器中的尿素水溶液的质量的测量装置的合理性的方法包括确定是否已经发生储存器的填充，确定储存器中的尿素水溶液的质量 并且检测是否存在测量装置的误差，或者储存器是否填充有尿素水溶液，其质量偏离由所述储存器的填充状态和所述尿素溶液的质量组成的默认值 水库

公开(公告)号：US20150034189A1

公开(公告)日：2015-02-05

申请号：US14385491

申请日：2013-01-28

Applicant: Robert Bosch GmbH

Inventor： Matthias Burger

IPC: F01N3/08

CPC classification number: F01N3/208 ,  F01N3/0253 ,  F01N3/08 ,  F01N3/2066 ,  F01N3/36 ,  F01N9/002 ,  F01N2610/14 ,  F01N2610/1433 ,  F01N2610/1453 ,  F01N2900/16 ,  Y02A50/2325 ,  Y02T10/24 ,  Y10T137/85978

Abstract: The present invention relates to a dosing device (15) for introducing a liquid medium into an exhaust gas flow of an internal combustion engine (1) of a motor vehicle. The dosing device (15) has a pump (23) to deliver the liquid medium and injects said medium into the exhaust gas flow via a controllable dosing valve (13). The dosing device (15) has a 2/2 directional valve (17) which is arranged in a delivery line (19) between the pump (23) and a first low pressure chamber (47) of the dosing valve (13).

Abstract translation: 本发明涉及一种用于将液体介质引入汽车内燃机（1）的排气流中的计量装置（15）。 计量装置（15）具有用于输送液体介质的泵（23），并且经由可控计量阀（13）将所述介质注入废气流中。 配量装置（15）具有2/2方向阀（17），其布置在泵（23）和配量阀（13）的第一低压室（47）之间的输送管线（19）中。

公开(公告)号：US09752483B2

公开(公告)日：2017-09-05

申请号：US15075739

申请日：2016-03-21

Applicant: Robert Bosch GmbH

Inventor： Matthias Burger

IPC: F01N9/00 ,  F01N3/20 ,  F01N3/08 ,  F01N3/025 ,  F01N3/36

CPC classification number: F01N3/208 ,  F01N3/0253 ,  F01N3/08 ,  F01N3/2066 ,  F01N3/36 ,  F01N9/002 ,  F01N2610/14 ,  F01N2610/1433 ,  F01N2610/1453 ,  F01N2900/16 ,  Y02A50/2325 ,  Y02T10/24 ,  Y10T137/85978

Abstract: A method of operating a dosing device. A dosing valve is provided with low-pressure and high-pressure chambers delimited by a piston whose travel is limited to a predefined maximum stroke. A pump operates to deliver the liquid at pre-delivery pressure. The dosing valve actuates under direction of a control unit by opening a 2/2 directional valve to direct the pumped liquid into the low-pressure chamber, and in response, the piston initiates a stroke. The liquid is injected from the high-pressure chamber into the exhaust-gas stream during the stroke of the piston, and the injection stops when the piston reaches maximum stroke. The control unit holds the directional valve open for longer than the piston requires to perform its maximum stroke so that the dosing valve delivers a predetermined volumetric dose of the liquid into the exhaust-gas stream, the predetermined volumetric dose corresponding directly to the maximum stroke of the piston.

公开(公告)号：US20170058739A1

公开(公告)日：2017-03-02

申请号：US15251109

申请日：2016-08-30

Applicant: Robert Bosch GmbH

Inventor： Matthias Burger

IPC: F01N3/20 ,  F04B49/06 ,  F04B17/04 ,  F01N9/00 ,  F04B19/22

CPC classification number: F01N3/206 ,  F01N9/00 ,  F01N2390/02 ,  F01N2610/144 ,  F01N2610/1473 ,  F01N2610/1486 ,  F01N2610/1493 ,  F04B17/04 ,  F04B19/22 ,  F04B49/06 ,  F04B49/065 ,  F04B2201/0209 ,  F04B2203/0401

Abstract: A method for operating a reagent metering system which meters a reagent into an exhaust duct of an internal combustion engine upstream of an SCR catalytic converter, in which, after the metering operation is ended, at least part of the reagent metering system is emptied by back-suction by means of a reciprocating pump. The procedure according to the invention is distinguished in that during the back-suction, a stop determination determines the flight time of a reciprocating piston of the reciprocating pump from a starting time as far as the stop time, in that a comparator compares the flight time determined with a flight time threshold value, and in that the activation power of the reciprocating pump is reduced if the flight time determined is less than the flight time threshold value.

Abstract translation: 一种用于操作试剂计量系统的方法，该试剂计量系统将试剂计量​​到SCR催化转化器上游的内燃机的排气管道中，其中在计量操作结束之后，至少部分试剂计量系统被倒空 通过往复泵进行。 根据本发明的过程的区别在于，在背吸时，停止确定确定往复泵的往复活塞从起动时间到停止时间的飞行时间，因为比较器比较飞行时间 由飞行时间阈值确定，并且如果确定的飞行时间小于飞行时间阈值，则往复泵的启动功率降低。

公开(公告)号：US20150082775A1

公开(公告)日：2015-03-26

申请号：US14395621

申请日：2013-02-19

Applicant: Robert Bosch GmbH

Inventor： Matthias Burger

IPC: F04B17/04 ,  F01N3/025 ,  F01N3/20

CPC classification number: F04B17/04 ,  F01N3/0253 ,  F01N3/2066 ,  F01N3/208 ,  F01N2610/02 ,  F01N2610/1433 ,  F01N2610/1453 ,  F02M57/027 ,  F04B17/046 ,  Y02A50/2325 ,  Y02T10/24

Abstract: The present invention relates to a dosing valve and to a dosing device (15) for introducing a liquid medium into an exhaust-gas stream of an internal combustion engine (1) of a motor vehicle. The dosing device (15) has a pump (23) for delivering the liquid medium. The medium is injected into the exhaust-gas stream by means of a dosing valve (13) which can be controlled by way of an electromagnet (65). The dosing device (13) comprises a housing (33) with a stepped bore (34, 34.1, 34.2, 34.3, 34.4), wherein a pump sleeve (47) is guided sealingly in one portion (34.4) of the stepped bore (34). A hollow-bored piston (49) is guided sealingly in a central bore (48) of the pump sleeve (47). In a low-pressure chamber (61), an armature (69) is fastened to the piston (49), and furthermore a magnet sleeve (67) is fastened to the housing (33). A stop sleeve (75) is arranged on a side of the low-pressure chamber (61) situated opposite the magnet sleeve (67), wherein a stroke of the piston (49) is limited by the magnet sleeve (67) and/or by the stop sleeve (75).

Abstract translation: 本发明涉及一种用于将液体介质引入机动车辆的内燃机（1）的排气流中的计量阀和计量装置（15）。 计量装置（15）具有用于输送液体介质的泵（23）。 介质通过可通过电磁体（65）控制的计量阀（13）注入废气流中。 计量装置（13）包括具有阶梯孔（34,34.1,34.2,34.3,34.4）的壳体（33），其中泵套筒（47）被密封地引导到阶梯孔（34）的一部分（34.4） ）。 空心钻孔活塞（49）被密封地引导在泵套（47）的中心孔（48）中。 在低压室（61）中，电枢（69）固定在活塞（49）上，此外，磁体套筒（67）固定在壳体（33）上。 止动套筒（75）布置在位于与磁体套筒（67）相对的低压室（61）的一侧，其中活塞（49）的行程由磁体套筒（67）和/或 通过止动套筒（75）。

公开(公告)号：US09371824B2

公开(公告)日：2016-06-21

申请号：US14395621

申请日：2013-02-19

Applicant: Robert Bosch GmbH

Inventor： Matthias Burger

IPC: F01N3/00 ,  F04B17/04 ,  F01N3/20 ,  F01N3/025 ,  F02M57/02

CPC classification number: F04B17/04 ,  F01N3/0253 ,  F01N3/2066 ,  F01N3/208 ,  F01N2610/02 ,  F01N2610/1433 ,  F01N2610/1453 ,  F02M57/027 ,  F04B17/046 ,  Y02A50/2325 ,  Y02T10/24

Abstract: The present invention relates to a dosing valve and to a dosing device (15) for introducing a liquid medium into an exhaust-gas stream of an internal combustion engine (1) of a motor vehicle. The dosing device (15) has a pump (23) for delivering the liquid medium. The medium is injected into the exhaust-gas stream by means of a dosing valve (13) which can be controlled by way of an electromagnet (65). The dosing device (13) comprises a housing (33) with a stepped bore (34, 34.1, 34.2, 34.3, 34.4), wherein a pump sleeve (47) is guided sealingly in one portion (34.4) of the stepped bore (34). A hollow-bored piston (49) is guided sealingly in a central bore (48) of the pump sleeve (47). In a low-pressure chamber (61), an armature (69) is fastened to the piston (49), and furthermore a magnet sleeve (67) is fastened to the housing (33). A stop sleeve (75) is arranged on a side of the low-pressure chamber (61) situated opposite the magnet sleeve (67), wherein a stroke of the piston (49) is limited by the magnet sleeve (67) and/or by the stop sleeve (75).

Abstract translation: 本发明涉及一种用于将液体介质引入机动车辆的内燃机（1）的排气流中的计量阀和计量装置（15）。 计量装置（15）具有用于输送液体介质的泵（23）。 介质通过可通过电磁体（65）控制的计量阀（13）注入废气流中。 计量装置（13）包括具有阶梯孔（34,34.1,34.2,34.3,34.4）的壳体（33），其中泵套筒（47）被密封地引导到阶梯孔（34）的一部分（34.4） ）。 空心钻孔活塞（49）被密封地引导在泵套（47）的中心孔（48）中。 在低压室（61）中，电枢（69）固定在活塞（49）上，此外，磁体套筒（67）固定在壳体（33）上。 止动套筒（75）布置在位于与磁体套筒（67）相对的低压室（61）的一侧，其中活塞（49）的行程由磁体套筒（67）和/或 通过止动套筒（75）。