US20050262830A1 - Internal combustion engine installation comprising a direct-injection otto engine and a catalyst system - Google Patents

Internal combustion engine installation comprising a direct-injection otto engine and a catalyst system Download PDF

Info

Publication number
US20050262830A1
US20050262830A1 US10/521,665 US52166505A US2005262830A1 US 20050262830 A1 US20050262830 A1 US 20050262830A1 US 52166505 A US52166505 A US 52166505A US 2005262830 A1 US2005262830 A1 US 2005262830A1
Authority
US
United States
Prior art keywords
catalyst
less
internal combustion
combustion engine
catalysts
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.)
Abandoned
Application number
US10/521,665
Other languages
English (en)
Inventor
Ekkehard Pott
Helmut Sperling
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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
Priority claimed from DE10248508A external-priority patent/DE10248508A1/de
Application filed by Volkswagen AG filed Critical Volkswagen AG
Assigned to VOLKSWAGEN AKTIENGESELLSCHAFT reassignment VOLKSWAGEN AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: POTT, EKKEHARD, SPERLING, HELMUT
Publication of US20050262830A1 publication Critical patent/US20050262830A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/9454—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific device
    • 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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/011—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel
    • 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
    • F01N3/24—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 constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/904—Multiple catalysts
    • B01D2255/9045—Multiple catalysts in parallel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/92—Dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/92—Dimensions
    • B01D2255/9207—Specific surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
    • B01D53/9477—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on separate bricks, e.g. exhaust systems
    • 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

Definitions

  • the invention relates to an internal combustion engine installation with the distinguishing features named in the introductory portion of claim 1 .
  • the exhaust gas is passed over at least one catalyst, which converts one or more pollutant components of the exhaust gas.
  • catalysts which converts one or more pollutant components of the exhaust gas.
  • Oxidizing catalysts promote the oxidation of unburned hydrocarbons (HC) and carbon monoxide (CO), while reducing catalysts support the reduction of nitrogen oxides (NO x ) of the exhaust gas.
  • 3-way catalysts are used, in order to catalyze the conversion of the three aforementioned components (HC, CO, NO x ) simultaneously.
  • directly injected gasoline engines are known, which can be operated in the stratified mode only to a very limited extent, if at all, in a very limited idling range (Alfa 2.0 JTS, The new Alfa Romeo 2 L JTS engine with Direct Gasoline Injection, 10, Aachenerffy-und Motorenkolloquium 2001).
  • these vehicles and engines also have catalyst systems of a relatively large volume.
  • catalyst systems of large volume reliably produce low emissions.
  • noble metals are used to produce the catalysts, so that high costs are disadvantageously associated with catalyst systems of large volume.
  • the invention is therefore based on the objective of providing internal combustion engine installations with a directly injected gasoline engine and a catalyst system, which, while maintaining the emissions comparably low, can be produced at a lower cost with respect to the catalyst system than can internal combustion engine installations of the state-of-the-art.
  • an internal combustion engine installation which has a directly injected gasoline engine, which can be operated in a stratified manner to only a slight extent, if at all, and a catalyst system, which is disposed downstream from the gasoline engine and has at least one catalyst, the catalyst system having a total volume (KV) of 0.8 to 0.5 ⁇ the engine displacement (VH) or of 1.3 to 0.7 L per 100 kW of engine power (PNENN) and for which the average specific noble metal loading of the catalyst or catalysts of the catalyst system is less than 3.59 g/dm 3 (100 g/ft 3 ) preferably less than 2.87 g/dm 3 (80 g/ft 3 ) and ideally less than 2.15 g/dm 3 (60 g/ft 3 ), the total mass of noble metals of the catalyst or catalysts being less than 2 g, preferably less than 1.6 g, ideally less than 1.2 g and optimally less than 0.8 g per liter of engine displacement (V
  • the emission limits for EU IV are fulfilled with the inventive internal combustion engine installation. This is the case especially also for aged catalysts. Such aging can be achieved, for example, by alternately acting upon the catalyst with exhaust gases from an at least 90% full-load operation and thrust cut-off.
  • Pursuant to the invention investigations were conducted with similar internal combustion engine installations, which differ with regard to the fuel injection. On the one hand, measurements were carried out with an intake manifold injector, on the other, with directly injected gasoline engines. They showed that the directly injected gasoline engines, aside from having an up to 7% higher rated horsepower, produced fewer HC emissions. Fewer HC emissions were achieved when the following specifications were present:
  • a catalyst volume (KV) of less than 0.7 and especially of less than 0.6 ⁇ the engine displacement (VH) is preferred.
  • a catalyst volume (KV) of less than 1.15 L and especially of less than 1.00 L per 100 kW of rated horsepower of the engine (PNENN) is preferred, a catalyst volume (KV) of less than 0.85 l per 100 kW of rated horsepower of the engine (PNENN) being optimum.
  • the average specific loading of the catalyst or catalysts with noble metal preferably is ⁇ 2.87 g/dm 3 (80 g/ft 3 ). If at least one pre-catalyst is present, the specific loading of the pre-catalyst or pre-catalysts can be up to 70%, preferably up to 50% and optimally up to 30% higher than the specific loading of the main catalyst or catalysts with noble metal.
  • the total mass of noble metal of the exhaust gas purification system is less then 1.7 g, especially less than 1.4 g, optimally less than 1.2 g and, in a perfect system, less than 1.0 g per liter of engine displacement VH or preferably less than 3 g, especially less than 2.5 g, optimally less than 2.2 g and, in a perfect system, less than 2 g per 100 kW of rated horsepower of the gasoline engine.
  • the directly injected gasoline engine is capable of stratified operation in less than 7%, especially in less than 5%, preferably in less than 3% and optimally in 0% of operating points.
  • the gasoline engine preferably is a naturally aspirated engine.
  • a single catalyst at least two catalysts arranged in parallel, a main catalyst with at least two pre-catalysts, arranged in parallel, and pre-catalysts, arranged in parallel, with main catalysts, arranged in parallel, can be used.
  • a single catalyst When a single catalyst is disposed downstream from the gasoline engine, it is preferably removed less than 800 mm, especially less than 500 mm, optimally less than 300 mm exhaust gas pipeline length from the nearest outlet valve.
  • the catalyst system may, however, also have at least two catalysts, which are connected in parallel and are disposed in each case less than 800 mm, preferably less than 500 mm and optimally less than 300 mm exhaust gas pipeline length behind the nearest outlet valve.
  • the catalyst system has a pre-catalyst, which is followed by a main catalyst, which, preferably, is at a distance of more than 100 mm from the pre-catalyst.
  • the pre-catalyst preferably is disposed less than 800 mm and preferably less than 500 mm exhaust gas pipe length behind the nearest outlet valve.
  • the pre-catalyst has a volume of not more than 70%, preferably of not more than 50% and ideally not more than 30% of that of the main catalyst, which follows it.
  • an arrangement with at least two pre-catalysts, which are connected parallel to one another and disposed in each case less than 800 mm, preferably less than 500 mm and ideally 350 mm exhaust gas pipeline length behind the nearest outlet valve, and at least one main catalyst, which follows these pre-catalysts, is also possible.
  • the pre-catalysts together have a volume of not more than 70% and preferably not more than 50% of the downstream main catalyst or catalysts.
  • the single catalyst and the main catalyst or catalysts are based preferably on a ceramic support.
  • the inventive internal combustion engine installation with an exhaust gas purification system which is not damaged by heat, ensures emission safety and according to the “Neue Obviouslyn Fahrzyklus” New European Driving Cycle—NEFZ) in spite of the significantly reduced noble metal costs.
  • FIG. 1 shows a diagrammatic representation of the internal combustion engine installation with a catalyst
  • FIG. 2 shows a diagrammatic representation of the internal combustion engine installation with a pre-catalyst and a main catalyst
  • FIG. 3 shows a diagrammatic representation of the internal combustion engine installation with two pre-catalysts and one main catalyst and
  • FIG. 4 shows a diagrammatic representation of the internal combustion engine installation with two pre-catalysts and in each case one downstream main catalyst.
  • FIGS. 1 to 4 each represent an inventive internal combustion engine installation 10 , which has a gasoline engine 12 with a downstream exhaust gas installation 14 , there being at least one catalyst for forming a catalyst system 16 in the exhaust gas installation 14 .
  • FIG. 1 shows an internal combustion engine installation 10 , which has a single catalyst 18 , which is in the vicinity of the engine and optimally is disposed less than 300 mm exhaust gas pipeline length from the nearest outlet valve of the gasoline engine 12 , the details of which are not shown.
  • a pre-combustion engine installation 10 which has a pre-catalyst 20 and, downstream from the latter, a main catalyst 22 , which are at least 100 mm apart, is shown in FIG. 2 .
  • the length of the exhaust gas pipeline from the nearest outlet valve of the gasoline engine 12 to the pre-catalyst 20 is selected in a manner similar to that of the embodiment of FIG. 1 .
  • FIG. 3 two pre-catalysts 20 are provided, which are assigned to different cylinders of the gasoline engine 12 .
  • a common main catalyst 22 is disposed downstream from the two pre-catalysts 20 .
  • FIG. 4 shows an embodiment of the internal combustion engine installation 10 , which, as in FIG. 3 , has to pre-catalyst 20 , downstream from each of which, however, a main catalyst 22 is disposed, the two assemblies 24 , 26 of the exhaust gas installation 14 being brought together behind the main catalyst 22 .
  • the exhaust gas pipeline lengths and the distances of the pre-catalysts 20 from the main catalysts are selected as described for the other embodiments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Fuel-Injection Apparatus (AREA)
US10/521,665 2002-07-15 2003-07-04 Internal combustion engine installation comprising a direct-injection otto engine and a catalyst system Abandoned US20050262830A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10232698 2002-07-15
DE10232698.3 2002-07-15
DE10248508A DE10248508A1 (de) 2002-07-15 2002-10-11 Verbrennungsmotoranlage mit direkteinspritzendem Ottomotor und einem Katalysatorsystem
DE10248508.9 2002-10-11
PCT/EP2003/007178 WO2004007920A1 (de) 2002-07-15 2003-07-04 Verbrennungsmotoranlage mit direkteinspritzendem ottomotor und einem katalysatorsystem

Publications (1)

Publication Number Publication Date
US20050262830A1 true US20050262830A1 (en) 2005-12-01

Family

ID=30116650

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/521,665 Abandoned US20050262830A1 (en) 2002-07-15 2003-07-04 Internal combustion engine installation comprising a direct-injection otto engine and a catalyst system

Country Status (6)

Country Link
US (1) US20050262830A1 (de)
EP (1) EP1530672B1 (de)
CN (1) CN100436767C (de)
AT (1) ATE383502T1 (de)
DE (1) DE50308984D1 (de)
WO (1) WO2004007920A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060016175A1 (en) * 2004-07-21 2006-01-26 Volkswagen Ag Hybrid vehicle
US20100095658A1 (en) * 2007-02-21 2010-04-22 Umicore Ag & Co. Kg Catalyst system and use thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015122096B4 (de) * 2015-12-17 2023-06-22 Tenneco Gmbh Abgasreinigungseinheit für Ottomotor

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US614399A (en) * 1898-11-15 Draft-equalizer
US1123729A (en) * 1909-09-23 1915-01-05 Frederick W Gore Aerocraft.
US5494881A (en) * 1993-07-29 1996-02-27 Ngk Insulators, Ltd. Ceramic honeycomb structural body and catalyst comprising the same
US5802845A (en) * 1993-08-20 1998-09-08 Ngk Insulators, Ltd. Exhaust gas purification system and exhaust gas purification method
US5884473A (en) * 1995-06-23 1999-03-23 Ngk Insulators, Ltd. System for exhaust gas purification and method for exhaust gas purification using said system
US20020061268A1 (en) * 1999-05-07 2002-05-23 Rolf Bruck Combustion engine assembly with a small volume catalytic converter
US6602165B2 (en) * 2001-02-07 2003-08-05 Honda Giken Kogyo Kabushiki Kaisha Control system for direct injection spark ignition internal combustion engine
US6689328B1 (en) * 1997-05-09 2004-02-10 Nippon Steel Corporation Metal honeycomb body for exhaust gas purification catalyst and method for producing the same
US7188607B2 (en) * 2002-07-04 2007-03-13 Toyota Jidosha Kabushiki Kaisha Internal combustion engine of compressing and auto-igniting air-fuel mixture and method of controlling such internal combustion engine
US7207315B2 (en) * 2004-08-02 2007-04-24 Toyota Jidosha Kabushiki Kaisha Device and method for controlling internal combustion engine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999001648A1 (de) * 1997-07-04 1999-01-14 Siemens Aktiengesellschaft Wabenförmiger katalysator und verfahren zur reinigung eines abgases aus einem mit luftüberschuss betriebenen verbrennungsmotor
DE19921971A1 (de) * 1999-05-12 2000-11-16 Volkswagen Ag Abgasreinigungsvorrichtung mit NO¶x¶-Speicherkatalysator und Vorkatalysator
DE10005714A1 (de) * 2000-02-09 2001-12-20 Volkswagen Ag Katalysatorsystem zur Nachbehandlung eines von einer Verbrennungskraftmaschine erzeugten Abgases

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US614399A (en) * 1898-11-15 Draft-equalizer
US1123729A (en) * 1909-09-23 1915-01-05 Frederick W Gore Aerocraft.
US5494881A (en) * 1993-07-29 1996-02-27 Ngk Insulators, Ltd. Ceramic honeycomb structural body and catalyst comprising the same
US5802845A (en) * 1993-08-20 1998-09-08 Ngk Insulators, Ltd. Exhaust gas purification system and exhaust gas purification method
US5884473A (en) * 1995-06-23 1999-03-23 Ngk Insulators, Ltd. System for exhaust gas purification and method for exhaust gas purification using said system
US6689328B1 (en) * 1997-05-09 2004-02-10 Nippon Steel Corporation Metal honeycomb body for exhaust gas purification catalyst and method for producing the same
US20020061268A1 (en) * 1999-05-07 2002-05-23 Rolf Bruck Combustion engine assembly with a small volume catalytic converter
US6602165B2 (en) * 2001-02-07 2003-08-05 Honda Giken Kogyo Kabushiki Kaisha Control system for direct injection spark ignition internal combustion engine
US7188607B2 (en) * 2002-07-04 2007-03-13 Toyota Jidosha Kabushiki Kaisha Internal combustion engine of compressing and auto-igniting air-fuel mixture and method of controlling such internal combustion engine
US7207315B2 (en) * 2004-08-02 2007-04-24 Toyota Jidosha Kabushiki Kaisha Device and method for controlling internal combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060016175A1 (en) * 2004-07-21 2006-01-26 Volkswagen Ag Hybrid vehicle
US7316108B2 (en) * 2004-07-21 2008-01-08 Volkswagen Ag Hybrid vehicle
US20100095658A1 (en) * 2007-02-21 2010-04-22 Umicore Ag & Co. Kg Catalyst system and use thereof
US8226914B2 (en) * 2007-02-21 2012-07-24 Umicore Ag & Co. Kg Catalyst system and use thereof

Also Published As

Publication number Publication date
WO2004007920A1 (de) 2004-01-22
EP1530672A1 (de) 2005-05-18
CN1668830A (zh) 2005-09-14
ATE383502T1 (de) 2008-01-15
CN100436767C (zh) 2008-11-26
DE50308984D1 (de) 2008-02-21
EP1530672B1 (de) 2008-01-09

Similar Documents

Publication Publication Date Title
US6161518A (en) Direct-injection diesel engine and combustion method for the same
Petitjean et al. Advanced gasoline engine turbocharging technology for fuel economy improvements
Lecointe et al. Downsizing a gasoline engine using turbocharging with direct injection
US6422008B2 (en) System for reduction of harmful exhaust emissions from diesel engines
CN101828010B (zh) 在涡轮增压器前的排气后处理
US6256984B1 (en) System for reduction of harmful exhaust emissions from diesel engines
US20070044755A1 (en) Device and method to increase fuel burn efficiency in internal combustion engines
WO1996036800A1 (en) High efficiency vehicle and engine
US10125648B2 (en) Device, method, and system for emissions control
US20050262830A1 (en) Internal combustion engine installation comprising a direct-injection otto engine and a catalyst system
US8966885B2 (en) Device, method, and system for emissions control
JP4694836B2 (ja) 直噴ガソリンエンジン及び触媒系を備えた内燃機関設備
Ito et al. Development of a 4-cylinder gasoline engine with a variable flow turbo-charger
Joergl et al. Influence of pre turbo catalyst design on diesel engine performance, emissions and fuel economy
JP2007162481A (ja) 過給機付き内燃機関
WO2004104389A1 (en) Method of purifying the exhaust gas of a diesel engine by means of a diesel oxidation catalyst
CN211343072U (zh) 甲醇燃料舷外机双涡轮增压闭环控制高效净化系统
Voss et al. Zirconia Based Ceramic, In-Cylinder Coatings and Aftertreatment Oxidation Catalysts for Reduction of Emissions from Heavy Duty Diesel Engines
US8459003B2 (en) Exhaust gas after-treatment having reduced rhodium depletion
US20120279206A1 (en) Device, method, and system for emissions control
CN201461056U (zh) 天然气汽车发动机的排气歧管
Watanabe et al. Development of CNG engine with variable valve timing electronic control
Yu et al. Effects of exhaust post-treatment technology on diesel engine emissions
CN2913640Y (zh) 一种柴油机活塞结构
KR200257015Y1 (ko) 자동차(승합버스, 트럭), 선박의 경유를 연료로 사용하는디젤 연소기관(엔진)의 연소 효율 활성화와 완전연소를위한 나선상의 환형 합금 열교환 전도체.

Legal Events

Date Code Title Description
AS Assignment

Owner name: VOLKSWAGEN AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:POTT, EKKEHARD;SPERLING, HELMUT;REEL/FRAME:016721/0243

Effective date: 20050106

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION