AT524012A3 - Gas-powered internal combustion engine and exhaust gas purification therefor - Google Patents

Gas-powered internal combustion engine and exhaust gas purification therefor Download PDF

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Publication number
AT524012A3
AT524012A3 ATA50565/2020A AT505652020A AT524012A3 AT 524012 A3 AT524012 A3 AT 524012A3 AT 505652020 A AT505652020 A AT 505652020A AT 524012 A3 AT524012 A3 AT 524012A3
Authority
AT
Austria
Prior art keywords
exhaust gas
injection
combustion engine
internal combustion
post
Prior art date
Application number
ATA50565/2020A
Other languages
German (de)
Other versions
AT524012B1 (en
AT524012A2 (en
Inventor
Hadl Dr Klaus
Original Assignee
Avl List Gmbh
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 Avl List Gmbh filed Critical Avl List Gmbh
Priority to ATA50565/2020A priority Critical patent/AT524012B1/en
Priority to PCT/AT2021/060234 priority patent/WO2022000013A1/en
Priority to DE112021001737.3T priority patent/DE112021001737A5/en
Priority to CN202180036991.7A priority patent/CN115667688A/en
Publication of AT524012A2 publication Critical patent/AT524012A2/en
Publication of AT524012A3 publication Critical patent/AT524012A3/en
Application granted granted Critical
Publication of AT524012B1 publication Critical patent/AT524012B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
    • F02D41/402—Multiple injections
    • F02D41/405—Multiple injections with post injections
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
    • F02B43/10—Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
    • F02D19/021—Control of components of the fuel supply system
    • F02D19/023—Control of components of the fuel supply system to adjust the fuel mass or volume flow
    • F02D19/024—Control of components of the fuel supply system to adjust the fuel mass or volume flow by controlling fuel injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
    • F02D19/0642—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
    • F02D19/0644—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being hydrogen, ammonia or carbon monoxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248—Injectors
    • F02M21/0275—Injectors for in-cylinder direct injection, e.g. injector combined with spark plug
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/36—Control for minimising NOx emissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
    • F02D41/1475—Regulating the air fuel ratio at a value other than stoichiometry
    • 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
    • Y02T10/30—Use of alternative fuels, e.g. biofuels
    • 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)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

Die Erfindung betrifft eine gasbetriebene Brennkraftmaschine, bei deren Betrieb in Arbeitszyklen der Brennkraftmaschine jeweils wenigstens zwei Einspritzvorgänge vorgesehen sind, bei denen ein gasförmiger Kraftstoff in einen Brennraum der Brennkraftmaschine eingespritzt wird, wobei die wenigstens zwei Einspritzvorgänge eine drehmomenterzeugende Haupteinspritzung und eine zeitlich nach der Haupteinspritzung erfolgende zweite Einspritzung von Kraftstoff umfassen. Erfindungsgemäß ist als zweite Einspritzung eine Nacheinspritzung derart vorgesehen, dass nacheingespritzter Kraftstoff chemisch zumindest im Wesentlichen unverändert als Abgasbestandteil aus dem Brennraum in einen Abgastrakt der Brennkraftmaschine ausgestoßen wird und wenigstens teilweise mit im Abgas enthaltenem Stickoxid an einem im Abgastrakt angeordneten Katalysator unter Bildung von Stickstoff reagiert. Für das erfindungsgemäße Betriebsverfahren ist vorgesehen, dass als zweite Einspritzung eine Nacheinspritzung zu einem derart späten Zeitpunkt durchgeführt wird, dass der nacheingespritzte Kraftstoff chemisch zumindest im Wesentlichen unverändert als Abgasbestandteil aus dem Brennraum in einen Abgastrakt der Brennkraftmaschine ausgestoßen und einem im Abgastrakt angeordneten Katalysator zugeführt wird, an dem im Abgas enthaltenes Stickoxid mit durch die Nacheinspritzung in das Abgas gelangtem Kraftstoff wenigstens teilweise zu Stickstoff reduziert wird. Anwendung in Kraftfahrzeugen.The invention relates to a gas-operated internal combustion engine, in the operation of which at least two injection processes are provided in the working cycles of the internal combustion engine, in which a gaseous fuel is injected into a combustion chamber of the internal combustion engine, the at least two injection processes being a torque-generating main injection and a second injection taking place after the main injection Include injection of fuel. According to the invention, a post-injection is provided as the second injection in such a way that post-injected fuel is ejected chemically at least essentially unchanged as an exhaust gas component from the combustion chamber into an exhaust gas tract of the internal combustion engine and at least partially reacts with the nitrogen oxide contained in the exhaust gas on a catalytic converter arranged in the exhaust gas tract to form nitrogen. For the operating method according to the invention, it is provided that the second injection is a post-injection at such a late point in time that the post-injected fuel is ejected chemically at least essentially unchanged as an exhaust gas component from the combustion chamber into an exhaust gas section of the internal combustion engine and fed to a catalytic converter arranged in the exhaust gas section. at which the nitrogen oxide contained in the exhaust gas is at least partially reduced to nitrogen with the fuel that has entered the exhaust gas as a result of the post-injection. Application in motor vehicles.

ATA50565/2020A 2020-07-03 2020-07-03 Gas-powered internal combustion engine and exhaust gas purification therefor AT524012B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ATA50565/2020A AT524012B1 (en) 2020-07-03 2020-07-03 Gas-powered internal combustion engine and exhaust gas purification therefor
PCT/AT2021/060234 WO2022000013A1 (en) 2020-07-03 2021-07-02 Gas-operated internal combustion engine and exhaust gas cleaning therefor
DE112021001737.3T DE112021001737A5 (en) 2020-07-03 2021-07-02 Gas-powered internal combustion engine and exhaust gas purification therefor
CN202180036991.7A CN115667688A (en) 2020-07-03 2021-07-02 Pneumatic internal combustion engine and exhaust gas purification device thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA50565/2020A AT524012B1 (en) 2020-07-03 2020-07-03 Gas-powered internal combustion engine and exhaust gas purification therefor

Publications (3)

Publication Number Publication Date
AT524012A2 AT524012A2 (en) 2022-01-15
AT524012A3 true AT524012A3 (en) 2022-07-15
AT524012B1 AT524012B1 (en) 2022-10-15

Family

ID=77020993

Family Applications (1)

Application Number Title Priority Date Filing Date
ATA50565/2020A AT524012B1 (en) 2020-07-03 2020-07-03 Gas-powered internal combustion engine and exhaust gas purification therefor

Country Status (4)

Country Link
CN (1) CN115667688A (en)
AT (1) AT524012B1 (en)
DE (1) DE112021001737A5 (en)
WO (1) WO2022000013A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024008271A1 (en) * 2022-07-04 2024-01-11 Volvo Truck Corporation A method for controlling the operation of a hydrogen combustion engine system of a vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090012698A1 (en) * 2006-01-27 2009-01-08 Toyota Jidosha Kabushiki Kaisha Gas-Fueled Internal Combustion Engine and Control Method for Gas-Fueled Internal Combustion Engine
US20110259290A1 (en) * 2010-04-26 2011-10-27 Toyota Jidosha Kabushiki Kaisha Ammonia burning internal combustion engine
DE102017116648A1 (en) * 2017-07-24 2019-01-24 Keyou GmbH Internal combustion engine, in particular for a motor vehicle, and method for operating such an internal combustion engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10159479A1 (en) * 2001-12-04 2003-06-18 Daimler Chrysler Ag Method for operating an internal combustion engine
DE10321794A1 (en) 2003-05-14 2004-12-09 Bayerische Motoren Werke Ag Method for operating an internal combustion engine
DE102010050406A1 (en) * 2010-11-04 2012-05-10 Daimler Ag Motor vehicle internal combustion engine and operating method for a motor vehicle internal combustion engine
DE102014224333A1 (en) * 2014-11-28 2016-06-02 Robert Bosch Gmbh Method for injecting gaseous fuel directly into a combustion chamber of an internal combustion engine
DE102018211890A1 (en) * 2018-07-17 2020-01-23 Robert Bosch Gmbh Method for operating an internal combustion engine, device for carrying out the method and internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090012698A1 (en) * 2006-01-27 2009-01-08 Toyota Jidosha Kabushiki Kaisha Gas-Fueled Internal Combustion Engine and Control Method for Gas-Fueled Internal Combustion Engine
US20110259290A1 (en) * 2010-04-26 2011-10-27 Toyota Jidosha Kabushiki Kaisha Ammonia burning internal combustion engine
DE102017116648A1 (en) * 2017-07-24 2019-01-24 Keyou GmbH Internal combustion engine, in particular for a motor vehicle, and method for operating such an internal combustion engine

Also Published As

Publication number Publication date
AT524012B1 (en) 2022-10-15
AT524012A2 (en) 2022-01-15
WO2022000013A1 (en) 2022-01-06
CN115667688A (en) 2023-01-31
DE112021001737A5 (en) 2023-01-19

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