GB1423733A - Internal combustion engines - Google Patents

Internal combustion engines

Info

Publication number
GB1423733A
GB1423733A GB406873A GB406873A GB1423733A GB 1423733 A GB1423733 A GB 1423733A GB 406873 A GB406873 A GB 406873A GB 406873 A GB406873 A GB 406873A GB 1423733 A GB1423733 A GB 1423733A
Authority
GB
United Kingdom
Prior art keywords
engine
temperature
reactor
starting
regulating device
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.)
Expired
Application number
GB406873A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1423733A publication Critical patent/GB1423733A/en
Expired legal-status Critical Current

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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/024—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating 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
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • 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
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/024—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus
    • F02D41/0255—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus to accelerate the warming-up of the exhaust gas treating apparatus at engine start
    • 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
    • F02D41/1486—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor with correction for particular operating conditions
    • F02D41/1488—Inhibiting the regulation
    • 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
    • F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
    • F01N2430/06—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by varying fuel-air ratio, e.g. by enriching fuel-air mixture
    • 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)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

1423733 Purifying I.C. engine exhaust gas ROBERT BOSCH GmbH 26 Jan 1973 [29 Jan 1972] 4068/73 Heading B1W [Also in Division G3] An exhaust gas purification system for an i.c. engine comprises a reactor adapted at a predetermined temperature to decompose at least one injurious constituent, e.g. a nitrogen oxide, of the engine exhaust gases; a regulating device for regulating the mass ratio (#) of air to fuel, when the reactor is at its operating temperature, to a value substantially equal to unity (an example of a suitable regulating device is shown in specification 1197865 Division Gl); means for reducing the cold-start fuel enrichment with respect to time for a predetermined interval 17, e.g. 20-30 seconds, after starting the engine; means for reducing the cold starting fuel enrichment with respect to engine temperature for a further predetermined interval 18 after starting of the engine, and a switching device responsive to engine temperature for switching on the #- regulating device when the reactor has reached its operating temperature.
GB406873A 1972-01-29 1973-01-26 Internal combustion engines Expired GB1423733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722204292 DE2204292B2 (en) 1972-01-29 1972-01-29 METHOD AND DEVICE FOR REDUCING HARMFUL COMPONENTS OF EXHAUST GAS EMISSIONS FROM COMBUSTION ENGINES

Publications (1)

Publication Number Publication Date
GB1423733A true GB1423733A (en) 1976-02-04

Family

ID=5834452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB406873A Expired GB1423733A (en) 1972-01-29 1973-01-26 Internal combustion engines

Country Status (8)

Country Link
JP (1) JPS5543107B2 (en)
AT (1) AT322294B (en)
DE (1) DE2204292B2 (en)
FR (1) FR2169407B1 (en)
GB (1) GB1423733A (en)
IT (1) IT990517B (en)
NL (1) NL7301151A (en)
SE (1) SE388666B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4109615A (en) * 1974-10-21 1978-08-29 Nissan Motor Company, Limited Apparatus for controlling the ratio of air to fuel of air-fuel mixture of internal combustion engine
CA1053099A (en) * 1975-03-03 1979-04-24 Taro Tanaka Internal combustion engine and method of operation
JPS591345B2 (en) * 1975-07-21 1984-01-11 カブシキガイシヤ ニツポンジドウシヤブヒンソウゴウケンキユウシヨ Kuunenhichiyouseisouchi
JPS5248733A (en) * 1975-10-17 1977-04-19 Nissan Motor Co Ltd Air-fuel ratio controller
JPS5297029A (en) * 1976-02-12 1977-08-15 Nissan Motor Co Ltd Air fuel ratio controller
JPS6020570B2 (en) * 1976-10-25 1985-05-22 トヨタ自動車株式会社 Internal combustion engine fuel supply system
JPS538431A (en) * 1976-07-12 1978-01-25 Hitachi Ltd Air-to-fuel ratio control means for engine
JPS5314222A (en) * 1976-07-27 1978-02-08 Toyota Motor Corp Secondary air control system
JPS5388624U (en) * 1976-12-23 1978-07-20
JPS5392512U (en) * 1976-12-27 1978-07-28
JPS5381827A (en) * 1976-12-27 1978-07-19 Nissan Motor Co Ltd Air fuel ratio controller
JPS5474923A (en) * 1977-11-28 1979-06-15 Toyota Motor Corp Fuel injection type engine
DE2805805C2 (en) * 1978-02-11 1989-07-20 Robert Bosch Gmbh, 7000 Stuttgart Method and device for operating a fuel supply system with lambda control
DE3006369C2 (en) * 1980-02-20 1985-10-03 Daimler-Benz Ag, 7000 Stuttgart Internal combustion engine with air volume-dependent injection
JPS57137633A (en) * 1981-02-20 1982-08-25 Honda Motor Co Ltd Fuel feed controller of internal combustion engine
DE3207787A1 (en) * 1982-03-04 1983-09-08 Robert Bosch Gmbh, 7000 Stuttgart FUEL FEEDING SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
US4614348A (en) * 1985-10-04 1986-09-30 Aeroquip Corporation Anti-blowout seal

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028563B1 (en) * 1969-12-29 1975-09-17

Also Published As

Publication number Publication date
JPS5024624A (en) 1975-03-15
IT990517B (en) 1975-07-10
DE2204292A1 (en) 1973-08-02
FR2169407B1 (en) 1976-09-10
AT322294B (en) 1975-05-12
JPS5543107B2 (en) 1980-11-04
SE388666B (en) 1976-10-11
DE2204292B2 (en) 1978-02-02
FR2169407A1 (en) 1973-09-07
NL7301151A (en) 1973-07-31

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930124