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GB1501833A - Exhaust gas purifying system in combination with an internal combustion engine - Google Patents

Exhaust gas purifying system in combination with an internal combustion engine

Info

Publication number
GB1501833A
GB1501833A GB8658/76A GB865876A GB1501833A GB 1501833 A GB1501833 A GB 1501833A GB 8658/76 A GB8658/76 A GB 8658/76A GB 865876 A GB865876 A GB 865876A GB 1501833 A GB1501833 A GB 1501833A
Authority
GB
United Kingdom
Prior art keywords
air
engine
exhaust gas
fuel
valve
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
GB8658/76A
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 JP2775375A external-priority patent/JPS51102730A/en
Priority claimed from JP2876975A external-priority patent/JPS51104118A/en
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of GB1501833A publication Critical patent/GB1501833A/en
Expired legal-status Critical Current

Links

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
    • F01N3/08—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
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • 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
    • 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
    • F02D41/0047—Controlling exhaust gas recirculation [EGR]
    • F02D41/0065—Specific aspects of external EGR control
    • 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)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

1501833 Purifying IC engine exhaust gas; controlling IC engines NISSAN MOTOR CO Ltd 4 March 1976 [6 March 1975 10 March 1975] 08658/76 Heading F1B [Also in Divisions B1 and F4] An I.C. engine exhaust purifying system comprises an afterburner and/or catalytic reactor 28 and a sensor 32 mounted downstream of the afterburner for emitting a signal representing the concentration of a given constituent in the exhaust gases from the device 28, which signal controls means regulating the composition of the exhaust gases passing to the device. The control means may provide a predetermined fuel air ratio to the engine 10 by means of an electric or electromagnetic valve 22 in the fuel supply to the mixture supply means 18 which is electronically controlled by a unit 24 connected to the sensor 32. In a modification, Figs. 4 to 6, (not shown), the electronically controlled valve may be situated in an air conduit 46 between an air filter 16 and the exhaust gas duct 26 upstream of the afterburner, to supply air into the exhaust system. A similar but supplementary air supply 40 comprising an air pump 44 in the conduit 46 may be provided which is controlled in response to the operation of the engine by means (not shown), acting to control a valve 48 in the conduit 46, and a check-valve 42 is mounted therein to prevent reflux of exhaust gases thereinto. A second, supplementary air supply means provides air from the air pump 44 to the fuel air duct downstream of the mixture supply means 18 through a check-valved conduit 49 when the degree of vacuum created in the fuel-air intake system is above a predetermined level. An exhaust gas recirculating system 54 having a valve 58 also reponsive to the degree of intake vacuum recycles some exhaust gases into the intake system from a point downstream of the afterburners. The ratio of air-fuel supplied to the engine is additionally controlled in accordance with engine operation and/or ambient conditions so as to maintain optimum exhaust gas temperatures for burning. Means to detect such factors comprise sensors responsive to rotation of the throttle valve, accelerator position, engine speed, coolant temperature, exhaust gas temperature, ambient air temperature, engine intake vacuum, intake air-flow, and fuel flow.
GB8658/76A 1975-03-06 1976-03-04 Exhaust gas purifying system in combination with an internal combustion engine Expired GB1501833A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2775375A JPS51102730A (en) 1975-03-06 1975-03-06 NAINENKIKANNONENRYOSEIGYOSOCHI
JP2876975A JPS51104118A (en) 1975-03-10 1975-03-10 HAIKIJOKASOCHI

Publications (1)

Publication Number Publication Date
GB1501833A true GB1501833A (en) 1978-02-22

Family

ID=26365727

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8658/76A Expired GB1501833A (en) 1975-03-06 1976-03-04 Exhaust gas purifying system in combination with an internal combustion engine

Country Status (1)

Country Link
GB (1) GB1501833A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4308231A (en) 1980-08-11 1981-12-29 Coulter Electronics, Inc. Optical timing and A/D conversion method and apparatus
GB2240364B (en) * 1990-01-27 1994-09-28 S & C Thermofluids Ltd Combustion engines improvements
CN111760428A (en) * 2020-07-03 2020-10-13 孔德松 Organic waste gas treatment system and device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4308231A (en) 1980-08-11 1981-12-29 Coulter Electronics, Inc. Optical timing and A/D conversion method and apparatus
GB2240364B (en) * 1990-01-27 1994-09-28 S & C Thermofluids Ltd Combustion engines improvements
CN111760428A (en) * 2020-07-03 2020-10-13 孔德松 Organic waste gas treatment system and device

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)