DE112014004319T5 - Russbeladungsbestimmungssystem - Google Patents

Russbeladungsbestimmungssystem Download PDF

Info

Publication number
DE112014004319T5
DE112014004319T5 DE112014004319.2T DE112014004319T DE112014004319T5 DE 112014004319 T5 DE112014004319 T5 DE 112014004319T5 DE 112014004319 T DE112014004319 T DE 112014004319T DE 112014004319 T5 DE112014004319 T5 DE 112014004319T5
Authority
DE
Germany
Prior art keywords
particulate filter
control module
ammonia
soot loading
exhaust gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE112014004319.2T
Other languages
German (de)
English (en)
Inventor
Timothy P. Gardner
John W. DeGeorge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tenneco Automotive Operating Co Inc
Original Assignee
Tenneco Automotive Operating Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tenneco Automotive Operating Co Inc filed Critical Tenneco Automotive Operating Co Inc
Publication of DE112014004319T5 publication Critical patent/DE112014004319T5/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus
    • F01N11/007—Monitoring or diagnostic devices for exhaust-gas treatment apparatus the diagnostic devices measuring oxygen or air concentration downstream of the exhaust apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
    • F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/103—Oxidation catalysts for HC and CO only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. by adjusting the dosing of reducing agent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/021—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting ammonia NH3
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/06—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a temperature sensor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Materials Engineering (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)
DE112014004319.2T 2013-09-20 2014-09-18 Russbeladungsbestimmungssystem Withdrawn DE112014004319T5 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US14/032,665 US9371767B2 (en) 2013-09-20 2013-09-20 Soot load determination system
US14/032,665 2013-09-20
PCT/US2014/056208 WO2015042217A1 (en) 2013-09-20 2014-09-18 Soot load determination system

Publications (1)

Publication Number Publication Date
DE112014004319T5 true DE112014004319T5 (de) 2016-07-07

Family

ID=52689368

Family Applications (1)

Application Number Title Priority Date Filing Date
DE112014004319.2T Withdrawn DE112014004319T5 (de) 2013-09-20 2014-09-18 Russbeladungsbestimmungssystem

Country Status (6)

Country Link
US (1) US9371767B2 (enExample)
JP (1) JP2016530423A (enExample)
KR (1) KR20160055256A (enExample)
CN (1) CN105556076B (enExample)
DE (1) DE112014004319T5 (enExample)
WO (1) WO2015042217A1 (enExample)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT2597279T (pt) * 2011-11-22 2021-10-15 Deutz Ag Dispositivo e método para purificar gases de escape de motores a diesel
US9334773B2 (en) * 2013-10-31 2016-05-10 Cummins Ip, Inc. Particulate matter sensor regeneration
CN112362973A (zh) * 2014-06-06 2021-02-12 滤波器感知技术有限公司 射频状态变量测量系统和方法
CN107849957B (zh) 2015-08-03 2020-03-24 康明斯排放处理公司 用于包括过滤器上的scr的后处理系统的传感器配置
US9879580B2 (en) 2015-08-19 2018-01-30 Cummins, Inc. Diagnostic methods for a high efficiency exhaust aftertreatment system
EP3184769B1 (en) * 2015-12-25 2018-07-18 Kubota Corporation Exhaust apparatus for diesel engine
JP6586377B2 (ja) * 2016-02-23 2019-10-02 日野自動車株式会社 排気浄化装置
WO2018057170A1 (en) * 2016-09-20 2018-03-29 Caterpillar Inc. After-treatment system
CN107024444A (zh) * 2017-02-15 2017-08-08 武汉启呈环保技术有限公司 一种柴油机脱硝氨逃逸测试反馈系统
CN106896078B (zh) * 2017-02-15 2019-06-04 武汉启呈环保技术有限公司 一种柴油机尾气脱硝氨逃逸测试装置
CN108131188B (zh) * 2018-01-29 2020-10-27 中国第一汽车股份有限公司 微粒过滤器控制系统
US20200378293A1 (en) * 2018-02-19 2020-12-03 Cummins Emission Solutions Inc. Improved diesel particulate filter linearity with thin ash layer
CN108645964B (zh) * 2018-04-23 2020-11-06 华北电力科学研究院有限责任公司 基于尿素还原剂的scr脱硝装置氨逃逸均值测定方法及系统
US20190353071A1 (en) * 2018-05-18 2019-11-21 GM Global Technology Operations LLC Selective catalytic reduction device control
US11008917B2 (en) * 2018-08-24 2021-05-18 International Engine Intellectual Property Company, Llc. DEF dosing using multiple dosing locations while maintaining high passive soot oxidation
JP7003878B2 (ja) * 2018-08-30 2022-01-21 トヨタ自動車株式会社 内燃機関の排気浄化装置
KR102054214B1 (ko) * 2018-10-26 2019-12-10 (주)세라컴 배기가스 후처리 시스템 및 이의 제어방법
DE102018220715A1 (de) * 2018-11-30 2020-06-04 Volkswagen Aktiengesellschaft Abgasnachbehandlungssystem sowie Verfahren zur Abgasnachbehandlung eines Verbrennungsmotors
US11286838B2 (en) * 2019-06-26 2022-03-29 Ford Global Technologies, Llc Methods for vehicle emissions control
DE102020123028A1 (de) * 2019-09-13 2021-03-18 Ngk Spark Plug Co., Ltd. Gassensorsteuerungsvorrichtung, Gassensorvorrichtung und Steuerungsvorrichtung für eine Brennkraftmaschine
DE102020202551A1 (de) * 2020-02-28 2021-09-02 Vitesco Technologies GmbH Verfahren und Vorrichtung zur Diagnose eines in einem Abgaskanal eines Kraftfahrzeugs angeordneten beschichteten Partikelfilters
US11339702B2 (en) * 2020-09-15 2022-05-24 Ford Global Technologies, Llc Methods and systems for an exhaust gas aftertreatment system
CN114964793B (zh) * 2022-04-24 2024-07-19 潍柴动力股份有限公司 Sdpf的灰载量的检测方法及设备、监测方法及装置、车辆

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6978604B2 (en) 2003-11-06 2005-12-27 International Engine Intellectual Property Company, Llc Soot burn-off control strategy for a catalyzed diesel particulate filter
WO2008103111A1 (en) 2007-02-21 2008-08-28 Volvo Lastvagnar Ab Exhaust gas after treatment system (eats)
US8316635B2 (en) 2008-06-13 2012-11-27 Cummins Filtration Ip, Inc. Methods of increasing accuracy of soot load estimates
JP5702287B2 (ja) 2008-09-10 2015-04-15 マック トラックス インコーポレイテッド ディーゼル微粒子フィルタ、エンジンおよび後処理システムにおける煤負荷を推定する方法
BRPI0924433B1 (pt) 2009-03-12 2021-05-04 Volvo Lastvagnar Ab Método de operação para um sistema de pós-tratamento de gás de exaustão e sistema de pós-tratamento de gás de exaustão
US8316634B2 (en) 2009-03-24 2012-11-27 GM Global Technology Operations LLC Ammonia load control for SCR catalyst prior to DPF regeneration
US8516804B2 (en) 2010-02-26 2013-08-27 Corning Incorporated Systems and methods for determining a particulate load in a particulate filter
US9273576B2 (en) * 2010-08-17 2016-03-01 Ford Global Technologies, Llc Method for reducing urea deposits in an aftertreatment system
US8660741B2 (en) * 2010-10-01 2014-02-25 Deere & Company Particulate filter ash loading prediction method and vehicle with same
US8447461B2 (en) 2010-10-01 2013-05-21 Deere & Company Particulate filter ash loading prediction method and vehicle with same
US9151202B2 (en) 2010-10-13 2015-10-06 Cummins Intellectual Property, Inc. Multi-leg exhaust aftertreatment system and method
US20120204537A1 (en) * 2011-02-11 2012-08-16 Caterpillar Inc. Adaptive diesel particulate filter regeneration control and method
US9051858B2 (en) * 2011-03-30 2015-06-09 Caterpillar Inc. Compression ignition engine system with diesel particulate filter coated with NOx reduction catalyst and stable method of operation
DE102011085952A1 (de) * 2011-11-08 2013-05-08 Robert Bosch Gmbh SCR-Katalysatorsystem und Verfahren zu seinem Betrieb
US9222389B2 (en) 2012-02-02 2015-12-29 Cummins Inc. Systems and methods for controlling reductant delivery to an exhaust stream

Also Published As

Publication number Publication date
WO2015042217A1 (en) 2015-03-26
US20150086426A1 (en) 2015-03-26
US9371767B2 (en) 2016-06-21
KR20160055256A (ko) 2016-05-17
CN105556076B (zh) 2017-11-24
JP2016530423A (ja) 2016-09-29
CN105556076A (zh) 2016-05-04

Similar Documents

Publication Publication Date Title
DE112014004319T5 (de) Russbeladungsbestimmungssystem
DE102015102227B4 (de) Abgasbehandlungssystem für einen Motor und Verfahren zum Ermitteln eines Übertemperaturzustandes in einem Abgasbehandlungssystem
EP2326809B1 (de) Verfahren zum betreiben einer abgasreinigungsanlage mit einem scr-katalysator und einem vorgeschalteten oxidationskatalytisch wirksamen abgasreinigungsbauteil
DE102014111801B4 (de) System zum Steigern der Leistungsfähigkeit einer Vorrichtung für selektive katalytische Reduktion
DE102014108243B4 (de) Verfahren und system zum anpassen eines korrekturkennfeldes für sauberen filter für einen filter mit selektiver katalytischer reduktion
DE102014110944B4 (de) Abgasbehandlungssystem und verfahren zum detektieren einer washcoat-aktivität an einem filtersubstrat eines partikelfilters
DE102008018063A1 (de) Fahrzeugbasierte Strategie zum Entfernen von Harnstoffablagerungen aus einem SCR-Katalysator
DE102018131654A1 (de) Verfahren zum diagnostizieren und steuern der ammoniakoxidation in selektiven katalytischen reduktionsvorrichtungen
DE102018107862B4 (de) Fahrzeug mit einem abgassystem und verfahren zumreduzieren von ammoniak (nh3)-schlupf im abgassystem
DE102009041688B4 (de) Temperatursteuerungssystem und -verfahren für Partikelfilterregeneration unter Verwendung eines Kohlenwasserstoffinjektors
DE112011103238T5 (de) Abgassystem mit mehrfach empfindlichem Sensor
DE102014101271A1 (de) Wärmeerzeugungssystem zur Ermittlung einer Effizienz einer Vorrichtung für selektive katalytische Reduktion
DE102017100290B4 (de) Verfahren und vorrichtung zur verbesserung der anspringleistung von nachbehandlungskatalysatoren
DE102009035304A1 (de) System zur Reinigung von Abgas
DE112014005284T5 (de) Fluideinspritzsteuersystem
DE102012212415A1 (de) Abgasnachbehandlungssystem für Kompressionszündungsmotoren
DE102017120712A1 (de) Verfahren und vorrichtung zur steuerung eines abgasbehandlungssystems
DE112019007908T5 (de) Systeme und Verfahren zur virtuellen Bestimmung der Schwefelkonzentration in Kraftstoffen
DE102014112170B4 (de) Abgasbehandlungssystem, hardwaresteuermodul und verfahren zum steuern eines abgasbehandlungssystems
DE102016209533A1 (de) Erfassen des Alterungszustands eines SCR-Katalysators
DE102014115631B4 (de) Abgasbehandlungssystem, Steuermodul und Verfahren zum dynamischen Erzeugen eines Reduktionsmittelspeichermodells
DE102014115630B4 (de) Abgasbehandlungssystem, Steuermodul und Verfahren zum Steuern eines Abgasbehandlungssystems
DE102014115431A1 (de) Steuerung einer Regeneration in einem Diesel-Nachbehandlungssystem
DE102017114288A1 (de) Def-dosierung für selektive katalytische reduktionskatalysatoren
DE102013224016A1 (de) Ermittlung eines Alterungsniveaus eines Dieseloxidationskatalysators unter Verwendung einer NO2-Interferenz eines NOX-Sensors

Legal Events

Date Code Title Description
R012 Request for examination validly filed
R079 Amendment of ipc main class

Free format text: PREVIOUS MAIN CLASS: F01N0003023000

Ipc: F01N0009000000

R083 Amendment of/additions to inventor(s)
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee