ClassID:

138297

F01N2900/1821 - CPC Classification

Classification description:

Details of electrical control or of the monitoring of the exhaust gas treating apparatus; Parameters used for exhaust control or diagnosing said parameters being related to the system for adding a substance into the exhaust; Properties of reducing agent or dosing system Injector parameters

Recent Application in this class:
#1
20260084105
2026-03-26

EXHAUST GAS TREATMENT SYSTEM AND METHOD

#2
20250230761
2025-07-17

SYSTEMS, DEVICES, AND METHODS FOR REGENERATING A PARTICULATE FILTER

#3
20250116217
2025-04-10

MOTOR VEHICLE PROVIDED WITH AN AFTER-TREATMENT APPARATUS AND A DEVICE FOR HEATING THE AFTER-TREATMENT APPARATUS

#4
20250012210
2025-01-09

REAL-TIME CONTROL OF REDUCTANT DROPLET SPRAY MOMENTUM AND IN-EXHAUST SPRAY DISTRIBUTION

#5
20240141815
2024-05-02

Real-time control of reductant droplet spray momentum and in-exhaust spray distribution

#6
20240075427
2024-03-07

Catalytic system and method for the removal of HCN from off-gases of a fluid cracking unit using same, and FCC unit assembly including the catalytic system

#7
20240035426
2024-02-01

Systems and methods for selective catalytic reduction (scr) multipoint diagnosis

#8
20230399966
2023-12-14

Systems, devices, and methods for regenerating a particulate filter

#9
20230383684
2023-11-30

Method for adapting the volume flow

#10
20230338897
2023-10-26

EXHAUST GAS TREATMENT SYSTEM AND METHOD

#11
20230193804
2023-06-22

Closed control loop with ammonia slip and NOx sensor feedback for use in selective catalytic reduction system

#12
20230147578
2023-05-11

Non-intrusive reductant injector clogging detection

#13
20230143384
2023-05-11

Method and a control arrangement for a process of selective catalytic reduction after-treatment of an exhaust gas

#14
20230056972
2023-02-23

Determination of a solenoid injector coil temperature

#15
20230031074
2023-02-02

Diesel exhaust fluid doser protection during cold ambient temperature conditions using cylinder cutout methods

#16
20230001354
2023-01-05

Fluid injector, assembly and exhaust line comprising such an injector

#17
20220412240
2022-12-29

Real-time control of reductant droplet spray momentum and in-exhaust spray distribution

#18
20220243629
2022-08-04

Method for operating a system with a plurality of metering valves

#19
20210317764
2021-10-14

Liquid only lance injector

#20
20210310393
2021-10-07

Liquid only lance injector

#21
20210293172
2021-09-23

Method and system for diagnosing an aftertreatment system

#22
20210254526
2021-08-19

Real-time control of reductant droplet spray momentum and in-exhaust spray distribution

#23
20210239021
2021-08-05

Dynamic monitoring of the flow rate of liquid additive injected into a motor vehicle exhaust gas treatment system

#24
20210180490
2021-06-17

Systems, devices, and methods for regenerating a particulate filter

#25
20210148268
2021-05-20

Systems and methods for increasing reductant insertion accuracy

#26
20210025307
2021-01-28

Methods and devices for controlling urea mixers to reduce NOx emission from combustion engines

#27
20200408122
2020-12-31

Liquid only lance injector

#28
20200347764
2020-11-05

Def injection strategy for multiple injection systems

#29
20200340381
2020-10-29

System and method for determining reductant delivery performance

#30
20200284178
2020-09-10

Method for preventing a risk of freezing in a reducing-agent feeding device of a selective catalytic reduction system

#31
20200208558
2020-07-02

System and a method for adapting control of a reducing agent dosing unit

#32
20200124205
2020-04-23

Method of adaptively sampling data to determine the start of injection in a solenoid actuated valve

#33
20200080461
2020-03-12

Combustion engine

#34
20200072113
2020-03-05

Method of detecting a doser valve opening or closing event

#35
20200072106
2020-03-05

Real-time control of reductant droplet spray momentum and in-exhaust spray distribution

#36
20190383187
2019-12-19

Engine and coolant system control systems and methods

#37
20190323400
2019-10-24

Assembly and methods for NOx reducing reagent dosing with variable spray angle nozzle

#38
20190301343
2019-10-03

Asynchronous reductant insertion in aftertreatment systems

#39
20190292971
2019-09-26

Heat shield and gasket for reductant delivery unit

#40
20190226375
2019-07-25

Systems and methods for improving injector accuracy

#41
20190186328
2019-06-20

Abnormality determination device

#42
20190178134
2019-06-13

Systems and methods for reducing noise in reductant insertion assemblies

#43
20190128165
2019-05-02

Systems and methods for reductant dosing including on-time correction for switching delays

#44
20190093536
2019-03-28

Exhaust purification device of engine

#45
20190093534
2019-03-28

Method for controlling an exhaust gas treatment system

#46
20190063296
2019-02-28

Diagnostic and mitigation strategy for reductant injector obstruction in exhaust system

#47
20190010884
2019-01-10

Selective catalytic reduction steady state ammonia slip detection

#48
20190010848
2019-01-10

Selective catalytic reduction ammonia storage control

#49
20190003362
2019-01-03

System and method for determining reductant delivery performance

#50
20180363534
2018-12-20

Asynchronous reductant insertion in aftertreatment systems

#51
20180363529
2018-12-20

Method of determining operation of an SCR reductant doser

#52
20180347423
2018-12-06

Exhaust gas after-treatment unit for an internal combustion engine and procedure for using a drive mechanism with such an exhaust gas after-treatment unit

#53
20180320572
2018-11-08

Selective catalytic reduction dosing control

#54
20180298835
2018-10-18

Method and system for use when correcting supply of an additive to an exhaust gas stream

#55
20180283247
2018-10-04

Assembly and methods for NOreducing reagent dosing with variable spray angle nozzle

#56
20180274420
2018-09-27

Method for controlling an SCR system having two metering valves

#57
20180245532
2018-08-30

Exhaust purification system

#58
20180230880
2018-08-16

Systems and methods for increasing diesel exhaust fluid delivery capacity

#59
20180202336
2018-07-19

Exhaust gas control apparatus for internal combustion engine and exhaust gas control method for internal combustion engine

#60
20180180490
2018-06-28

Temperature measuring device

#61
20180149057
2018-05-31

Power apparatus including reducing agent supply control system and reducing agent supply control method

#62
20180149056
2018-05-31

Method for controlling an exhaust gas treatment system

#63
20180073408
2018-03-15

Method for controlling the injection of reductant for an exhaust after treatment unit

#64
20180066558
2018-03-08

Exhaust purification system

#65
20180030911
2018-02-01

Exhaust purification system and catalyst regeneration method

#66
20180028974
2018-02-01

Systems and method for feed forward control of diesel exhaust fluid delivery systems

#67
20180023441
2018-01-25

Exhaust gas control system for internal combustion engine and control method for internal combustion engine

#68
20180010508
2018-01-11

Asynchronous reductant insertion in aftertreatment systems

#69
20180010502
2018-01-11

Methods for detecting a dosing error

#70
20170356318
2017-12-14

DNOx dosing tester and method

#71
20170335732
2017-11-23

Selective catalyst reduction system and method of controlling temperature of reducing agent injection module

#72
20170328251
2017-11-16

Systems and methods for reducing noise in reductant insertion assemblies

#73
20170175606
2017-06-22

Dosing module

#74
20170067387
2017-03-09

Asynchronous reductant insertion in aftertreatment systems

#75
20170051648
2017-02-23

Reductant supply system

#76
20170044951
2017-02-16

Method for thermally regulating an injector for injecting a reducing agent into an exhaust pipe of an internal combustion engine

#77
20160153336
2016-06-02

System for cooling vehicle SCR and method for controlling the same

#78
20160032800
2016-02-04

Control system of internal combustion engine

#79
20150308317
2015-10-29

Control method for reducing agent supply apparatus and reducing agent supply apparatus

#80
20150226103
2015-08-13

Method for operating a dosing valve, and corresponding internal combustion engine

#81
20150204930
2015-07-23

Diagnostic circuit of a voltage suppression circuit in a drive circuit of a fluid injector and method for diagnosing a fault in the voltage suppression circuit

#82
20150167526
2015-06-18

Aftertreatment system having two SCR catalysts

#83
20150114099
2015-04-30

Direct injection solenoid injector opening time detection

#84
20150113950
2015-04-30

Method and apparatus for detecting selective catalytic reduction injector opening time

#85
20150089926
2015-04-02

Exhaust gas purification system

#86
20140305106
2014-10-16

Control apparatus of internal combustion engine

#87
20140245720
2014-09-04

Method for operating a dosing device and motor vehicle having a dosing device

#88
20140182274
2014-07-03

Urea-water addition control unit

#89
20140007559
2014-01-09

Apparatus, system, and method for aftertreatment control and diagnostics

#90
20130305695
2013-11-21

Aftertreatment system having two SCR catalysts

#91
20130276429
2013-10-24

Method for diagnosing a metering valve and device for carrying out the method

#92
20130269427
2013-10-17

Diesel particulate filter system

#93
20130048096
2013-02-28

System comprising a pump, an injector and a regulator, with control signals to the pump which are based on calculated hose rigidities

#94
20130036724
2013-02-14

Method for metering a reducing agent, method for setting up a control unit for a metering device and motor vehicle having a metering device

#95
20120255282
2012-10-11

Control device and control method for reduction agent injection valve

#96
20120067031
2012-03-22

Method and apparatus for monitoring a reductant injection system in an exhaust aftertreatment system

#97
20110083424
2011-04-14

Method and apparatus for monitoring a reductant injection system in an exhaust aftertreatment system

#98
20110047971
2011-03-03

Dosing control systems and methods

#99
17836715
2023-11-14

Systems and methods for selective catalytic reduction (SCR) multipoint diagnosis

#100
17550303
2023-05-09

Diesel exhaust fluid injector heater

#101
15990107
2018-12-18

Systems and methods for compensating a reductant delivery system in an aftertreatment system of an internal combustion engine