公开(公告)号：EP2295747B1

公开(公告)日：2012-05-09

申请号：EP10187322.2

申请日：2009-05-22

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Dingle, Philip ,  Hardy, Martin ,  Zuelch, Roman

IPC: F01N3/035 ,  F01N3/20 ,  F01N9/00 ,  F01N11/00 ,  F01N3/021 ,  F01N3/08 ,  F01N13/04

CPC classification number: F01N3/208 ,  F01N3/021 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0878 ,  F01N3/106 ,  F01N11/00 ,  F01N13/009 ,  F01N13/011 ,  F01N2240/25 ,  F01N2240/36 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2260/024 ,  F01N2410/04 ,  F01N2410/12 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/1413 ,  F01N2610/1433 ,  F01N2610/146 ,  F01N2900/0412 ,  F01N2900/08 ,  F01N2900/1814 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method of dosing a reagent into an exhaust gas stream of an internal combustion engine (3) having an SCR catalyst (13), the method comprising injecting reagent from a reagent tank (21) into the exhaust gas stream at a position upstream of the SCR catalyst (13) using a reagent injector (40) in accordance with a first dosing schedule in order to remediate a predetermined proportion of NOx in the exhaust gas stream, the first dosing schedule being associated with a first range of engine operating conditions; and injecting reagent from the reagent tank (21) into the exhaust gas stream at a position upstream of the SCR catalyst (13) using a reagent injector (40) in accordance with a second dosing schedule in order to enable heat transfer between the reagent injector (40) and said injected reagent, the second dosing schedule being associated with a second range of engine operating conditions. Dosing in accordance with said first or said second dosing schedule is carried out in dependence on whether engine operating conditions lie within said first or said second range of engine operating conditions, and the proportion of NOx in the exhaust gas stream which is remediated by dosing using said second dosing schedule is less than said predetermined portion. A reagent dosing system (1) is also provided for dosing a reagent into the exhaust gas stream of an internal combustion engine (3), comprising a reagent tank (21) for storing a supply of reagent, an injector module (40) comprising an atomising dispenser (42) and a positive-displacement metering pump (41) which draws reagent from the reagent tank (21) and delivers it to the dispenser (42) a supply line (35) coupling the reagent tank (21) to the injector module (40), and a dosing control unit (70) operable to control the injector module (40) to inject reagent into the exhaust gas stream. A priming pump (80) is provided to urge reagent along the supply line (35) toward the injector module (40) under selected conditions.

公开(公告)号：EP2295748A1

公开(公告)日：2011-03-16

申请号：EP10187323.0

申请日：2009-05-22

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Dingle, Philip ,  Hardy Martin ,  Zuelch, Roman

IPC: F01N3/035 ,  F01N3/20 ,  F01N9/00 ,  F01N11/00 ,  F01N3/021 ,  F01N3/08 ,  F01N13/04

CPC classification number: F01N3/208 ,  F01N3/021 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0878 ,  F01N3/106 ,  F01N11/00 ,  F01N13/009 ,  F01N13/011 ,  F01N2240/25 ,  F01N2240/36 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2260/024 ,  F01N2410/04 ,  F01N2410/12 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/1413 ,  F01N2610/1433 ,  F01N2610/146 ,  F01N2900/0412 ,  F01N2900/08 ,  F01N2900/1814 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/47

Abstract: A reagent dosing system for dosing a reagent into the exhaust gas stream of an internal combustion engine (3), comprising a reagent tank (21) for storing a supply of reagent; an injector module (40) comprising an atomising dispenser (42) and a positive-displacement metering pump (41) which draws reagent from the reagent tank (21) and delivers it to the dispenser (42); a supply line (35) coupling the reagent tank (21) to the injector module (40); a dosing control unit (70) operable to control the injector module (40) to inject reagent into the exhaust gas stream; and an additional priming pump (80) arranged, in use, to urge reagent along the supply line (35) toward the injector module (40) under selected conditions.

Abstract translation: 一种用于将试剂计量​​到内燃机（3）的排气流中的试剂计量系统，包括用于储存试剂供应的试剂罐（21） 喷射器模块（40），包括雾化分配器（42）和从所述试剂罐（21）抽取试剂并将其输送到所述分配器（42）的正排量计量泵（41）。 将试剂罐（21）连接到喷射器模块（40）的供给管线（35）; 计量控制单元（70），其可操作以控制所述注射器模块（40）将试剂注入所述排气流中; 以及另外的起动泵（80），其在使用中被布置成在选择的条件下沿着供应管线（35）朝向喷射器模块（40）推动试剂。

公开(公告)号：EP2131020A3

公开(公告)日：2010-03-31

申请号：EP09160908.1

申请日：2009-05-22

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Dingle, Philip ,  Hardy, Martin ,  Zuelch, Roman

IPC: F01N3/035 ,  F01N3/20 ,  F01N9/00 ,  F01N11/00 ,  F01N3/021 ,  F01N3/08 ,  F01N13/04

CPC classification number: F01N3/208 ,  F01N3/021 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0878 ,  F01N3/106 ,  F01N11/00 ,  F01N13/009 ,  F01N13/011 ,  F01N2240/25 ,  F01N2240/36 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2260/024 ,  F01N2410/04 ,  F01N2410/12 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/1413 ,  F01N2610/1433 ,  F01N2610/146 ,  F01N2900/0412 ,  F01N2900/08 ,  F01N2900/1814 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method of dosing a reagent into an exhaust gas stream of an internal combustion engine (3) having an SCR catalyst (13), the method comprising injecting reagent from a reagent tank (21) into the exhaust gas stream at a position upstream of the SCR catalyst (13) using a reagent injector (40) in accordance with a first dosing schedule in order to remediate a predetermined proportion of NOx in the exhaust gas stream, the first dosing schedule being associated with a first range of engine operating conditions; and injecting reagent from the reagent tank (21) into the exhaust gas stream at a position upstream of the SCR catalyst (13) using a reagent injector (40) in accordance with a second dosing schedule in order to enable heat transfer between the reagent injector (40) and said injected reagent, the second dosing schedule being associated with a second range of engine operating conditions.
Dosing in accordance with said first or said second dosing schedule is carried out in dependence on whether engine operating conditions lie within said first or said second range of engine operating conditions, and the proportion of NOx in the exhaust gas stream which is remediated by dosing using said second dosing schedule is less than said predetermined portion. A reagent dosing system (1) is also provided for dosing a reagent into the exhaust gas stream of an internal combustion engine (3), comprising a reagent tank (21) for storing a supply of reagent, an injector module (40) comprising an atomising dispenser (42) and a positive-displacement metering pump (41) which draws reagent from the reagent tank (21) and delivers it to the dispenser (42) a supply line (35) coupling the reagent tank (21) to the injector module (40), and a dosing control unit (70) operable to control the injector module (40) to inject reagent into the exhaust gas stream. A priming pump (80) is provided to urge reagent along the supply line (35) toward the injector module (40) under selected conditions.

公开(公告)号：EP2131020B1

公开(公告)日：2011-08-03

申请号：EP09160908.1

申请日：2009-05-22

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Dingle, Philip ,  Hardy, Martin ,  Zuelch, Roman

IPC: F01N3/035 ,  F01N3/20 ,  F01N9/00 ,  F01N11/00 ,  F01N3/021 ,  F01N3/08 ,  F01N13/04

CPC classification number: F01N3/208 ,  F01N3/021 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0878 ,  F01N3/106 ,  F01N11/00 ,  F01N13/009 ,  F01N13/011 ,  F01N2240/25 ,  F01N2240/36 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2260/024 ,  F01N2410/04 ,  F01N2410/12 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/1413 ,  F01N2610/1433 ,  F01N2610/146 ,  F01N2900/0412 ,  F01N2900/08 ,  F01N2900/1814 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method of dosing a reagent into an exhaust gas stream of an internal combustion engine (3) having an SCR catalyst (13), the method comprising injecting reagent from a reagent tank (21) into the exhaust gas stream at a position upstream of the SCR catalyst (13) using a reagent injector (40) in accordance with a first dosing schedule in order to remediate a predetermined proportion of NOx in the exhaust gas stream, the first dosing schedule being associated with a first range of engine operating conditions; and injecting reagent from the reagent tank (21) into the exhaust gas stream at a position upstream of the SCR catalyst (13) using a reagent injector (40) in accordance with a second dosing schedule in order to enable heat transfer between the reagent injector (40) and said injected reagent, the second dosing schedule being associated with a second range of engine operating conditions. Dosing in accordance with said first or said second dosing schedule is carried out in dependence on whether engine operating conditions lie within said first or said second range of engine operating conditions, and the proportion of NOx in the exhaust gas stream which is remediated by dosing using said second dosing schedule is less than said predetermined portion. A reagent dosing system (1) is also provided for dosing a reagent into the exhaust gas stream of an internal combustion engine (3), comprising a reagent tank (21) for storing a supply of reagent, an injector module (40) comprising an atomising dispenser (42) and a positive-displacement metering pump (41) which draws reagent from the reagent tank (21) and delivers it to the dispenser (42) a supply line (35) coupling the reagent tank (21) to the injector module (40), and a dosing control unit (70) operable to control the injector module (40) to inject reagent into the exhaust gas stream. A priming pump (80) is provided to urge reagent along the supply line (35) toward the injector module (40) under selected conditions.

公开(公告)号：EP2295747A1

公开(公告)日：2011-03-16

申请号：EP10187322.2

申请日：2009-05-22

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Dingle, Philip ,  Hardy, Martin ,  Zuelch, Roman

IPC: F01N3/035 ,  F01N3/20 ,  F01N9/00 ,  F01N11/00 ,  F01N3/021 ,  F01N3/08 ,  F01N13/04

CPC classification number: F01N3/208 ,  F01N3/021 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0878 ,  F01N3/106 ,  F01N11/00 ,  F01N13/009 ,  F01N13/011 ,  F01N2240/25 ,  F01N2240/36 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2260/024 ,  F01N2410/04 ,  F01N2410/12 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/1413 ,  F01N2610/1433 ,  F01N2610/146 ,  F01N2900/0412 ,  F01N2900/08 ,  F01N2900/1814 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method of dosing a reagent into an exhaust gas stream of an internal combustion engine (3) having an SCR catalyst, the method comprising injecting reagent from a reagent tank (20) into the exhaust gas stream at a position upstream of the SCR catalyst using a reagent injector (40) in accordance with a first dosing schedule in order to remediate a predetermined proportion of NOx in the exhaust gas stream, the first dosing schedule being associated with a first range of engine operating conditions; and injecting reagent from the reagent tank (20) into the exhaust gas stream at a position upstream of the SCR catalyst using a reagent injector (40) in accordance with a second dosing schedule in order to enable heat transfer between the reagent injector (40) and said injected reagent, the second dosing schedule being associated with a second range of engine operating conditions.
Dosing in accordance with said first or said second dosing schedule is carried out in dependence on whether engine operating conditions lie within said first or said second range of engine operating conditions, and the proportion of NOx in the exhaust gas stream which is remediated by dosing using said second dosing schedule is less than said predetermined portion. The method further comprises sensing the level of reagent in the reagent tank (20); and halting the first dosing schedule when the sensed level of reagent drops below a predetermined level.

Abstract translation: 一种将试剂投入到具有SCR催化剂的内燃机（3）的排气流中的方法，该方法包括将试剂罐（20）中的试剂从SCR催化剂上游位置的排气流中注入，使用 根据第一给药方案的试剂注射器（40），以便修复废气流中的预定比例的NOx，第一给药方案与第一范围的发动机操作条件相关联; 以及根据第二给药方案，使用试剂注射器（40）在所述SCR催化剂上游的位置将试剂从所述试剂罐（20）注入所述排气流中，以使得所述试剂注入器（40） 和所述注射试剂，所述第二给药方案与第二范围的发动机操作条件相关联。 根据所述第一或第二给料计划的剂量是根据发动机操作条件是否在发动机操作条件的所述第一或所述第二范围内以及排气流中的NOx的比例通过配量使用 所述第二给药方案小于所述预定部分。 该方法还包括感测试剂罐（20）中的试剂的水平; 并且当感测到的试剂水平低于预定水平时停止第一给药方案。

公开(公告)号：EP2295748B1

公开(公告)日：2012-12-19

申请号：EP10187323.0

申请日：2009-05-22

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Dingle, Philip ,  Hardy Martin ,  Zuelch, Roman

IPC: F01N3/10 ,  F01N13/04 ,  F01N3/035 ,  F01N11/00 ,  F01N3/20 ,  F01N3/021 ,  F01N3/08

CPC classification number: F01N3/208 ,  F01N3/021 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0878 ,  F01N3/106 ,  F01N11/00 ,  F01N13/009 ,  F01N13/011 ,  F01N2240/25 ,  F01N2240/36 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2260/024 ,  F01N2410/04 ,  F01N2410/12 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/1413 ,  F01N2610/1433 ,  F01N2610/146 ,  F01N2900/0412 ,  F01N2900/08 ,  F01N2900/1814 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method of dosing a reagent into an exhaust gas stream of an internal combustion engine (3) having an SCR catalyst (13), the method comprising injecting reagent from a reagent tank (21) into the exhaust gas stream at a position upstream of the SCR catalyst (13) using a reagent injector (40) in accordance with a first dosing schedule in order to remediate a predetermined proportion of NOx in the exhaust gas stream, the first dosing schedule being associated with a first range of engine operating conditions; and injecting reagent from the reagent tank (21) into the exhaust gas stream at a position upstream of the SCR catalyst (13) using a reagent injector (40) in accordance with a second dosing schedule in order to enable heat transfer between the reagent injector (40) and said injected reagent, the second dosing schedule being associated with a second range of engine operating conditions. Dosing in accordance with said first or said second dosing schedule is carried out in dependence on whether engine operating conditions lie within said first or said second range of engine operating conditions, and the proportion of NOx in the exhaust gas stream which is remediated by dosing using said second dosing schedule is less than said predetermined portion. A reagent dosing system (1) is also provided for dosing a reagent into the exhaust gas stream of an internal combustion engine (3), comprising a reagent tank (21) for storing a supply of reagent, an injector module (40) comprising an atomising dispenser (42) and a positive-displacement metering pump (41) which draws reagent from the reagent tank (21) and delivers it to the dispenser (42) a supply line (35) coupling the reagent tank (21) to the injector module (40), and a dosing control unit (70) operable to control the injector module (40) to inject reagent into the exhaust gas stream. A priming pump (80) is provided to urge reagent along the supply line (35) toward the injector module (40) under selected conditions.

公开(公告)号：EP2360359A3

公开(公告)日：2011-11-09

申请号：EP11165721.9

申请日：2009-05-22

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Dingle, Philip ,  Hardy, Martin ,  Zuelch, Roman

IPC: F01N3/035 ,  F01N3/20 ,  F01N9/00 ,  F01N11/00 ,  F01N3/021 ,  F01N3/08 ,  F01N13/04

CPC classification number: F01N3/208 ,  F01N3/021 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0878 ,  F01N3/106 ,  F01N11/00 ,  F01N13/009 ,  F01N13/011 ,  F01N2240/25 ,  F01N2240/36 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2260/024 ,  F01N2410/04 ,  F01N2410/12 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/1413 ,  F01N2610/1433 ,  F01N2610/146 ,  F01N2900/0412 ,  F01N2900/08 ,  F01N2900/1814 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method of dosing a reagent into the exhaust gas stream of an internal combustion engine (3) having an SCR catalyst, the method comprising injecting a spray of reagent with a spray momentum into the exhaust gas stream using an injector module (40) comprising a positive-displacement metering pump (41) and an atomising dispenser (42), controlling the positive-displacement metering pump (41) in accordance with a control parameter such as a drive current level which is dependent on the exhaust gas stream space velocity so that the spray momentum provides optimum mixing of the injected reagent with the exhaust gas stream upstream of the SCR catalyst.

Abstract translation: 一种将试剂投配到具有SCR催化剂的内燃机（3）的排气流中的方法，所述方法包括使用喷射器模块（40）将具有喷射动量的试剂喷射喷射到排气流中，所述喷射器模块（40）包括 正排量计量泵（41）和雾化分配器（42），根据控制参数（例如取决于排气流空间速度的驱动电流水平）控制正位移计量泵（41），使得 喷雾动量提供了喷射的试剂与SCR催化剂上游的排气流的最佳混合。

公开(公告)号：EP2360359A2

公开(公告)日：2011-08-24

申请号：EP11165721.9

申请日：2009-05-22

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Dingle, Philip ,  Hardy, Martin ,  Zuelch, Roman

IPC: F01N3/035 ,  F01N3/20 ,  F01N9/00 ,  F01N11/00 ,  F01N3/021 ,  F01N3/08 ,  F01N13/04

CPC classification number: F01N3/208 ,  F01N3/021 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0878 ,  F01N3/106 ,  F01N11/00 ,  F01N13/009 ,  F01N13/011 ,  F01N2240/25 ,  F01N2240/36 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2260/024 ,  F01N2410/04 ,  F01N2410/12 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/1413 ,  F01N2610/1433 ,  F01N2610/146 ,  F01N2900/0412 ,  F01N2900/08 ,  F01N2900/1814 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method of dosing a reagent into the exhaust gas stream of an internal combustion engine (3) having an SCR catalyst, the method comprising injecting a spray of reagent with a spray momentum into the exhaust gas stream using an injector module (40) comprising a positive-displacement metering pump (41) and an atomising dispenser (42), controlling the positive-displacement metering pump (41) in accordance with a control parameter such as a drive current level which is dependent on the exhaust gas stream space velocity so that the spray momentum provides optimum mixing of the injected reagent with the exhaust gas stream upstream of the SCR catalyst.

Abstract translation: 一种将试剂计量​​到具有SCR催化剂的内燃机（3）的排气流中的方法，所述方法包括使用喷射器模块（40）将具有喷射动量的试剂喷雾喷射到废气流中，所述喷射器模块（40）包括 正位移计量泵（41）和雾化分配器（42），根据诸如依赖于排气流空间速度的驱动电流水平的控制参数来控制正排量计量泵（41），使得 喷射动量提供喷射的试剂与SCR催化剂上游的排气流的最佳混合。