公开(公告)号：US20140311128A1

公开(公告)日：2014-10-23

申请号：US14320871

申请日：2014-07-01

Applicant: DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.A.R.L.

Inventor： PHILIP J.G. DINGLE ,  MARTIN PAUL HARDY ,  STEFAN ROMAN ZUELCH

IPC: F01N3/20 ,  F01N3/035 ,  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 reagent dosing system for dosing a reagent into the exhaust gas stream of an internal combustion engine includes a reagent tank for storing a supply of reagent; an injector module including an atomising dispenser and a positive-displacement metering pump which draws reagent from the reagent tank and delivers it to the dispenser; a supply line coupling the reagent tank to the injector module; a dosing control unit operable to control the injector module to inject reagent into the exhaust gas stream; and an additional priming pump arranged, in use, to urge reagent along the supply line toward the injector module under selected conditions.

Abstract translation: 用于将试剂计量​​到内燃机的废气流中的试剂计量系统包括用于储存试剂供应的试剂罐; 喷射器模块，包括雾化分配器和正位计量泵，其从试剂罐抽取试剂并将其输送到分配器; 将试剂罐耦合到喷射器模块的供应管线; 计量控制单元，其可操作以控制所述注射器模块将试剂注入所述排气流中; 以及附加的起动泵，其在使用中被布置成在所选择的条件下沿着供应管线朝向喷射器模块推动试剂。