CA1004029A - Method to reduce noxious components in the exhaust of internal combustion engines - Google Patents

Method to reduce noxious components in the exhaust of internal combustion engines

Info

Publication number
CA1004029A
CA1004029A CA167,510A CA167510A CA1004029A CA 1004029 A CA1004029 A CA 1004029A CA 167510 A CA167510 A CA 167510A CA 1004029 A CA1004029 A CA 1004029A
Authority
CA
Canada
Prior art keywords
exhaust
internal combustion
combustion engines
noxious components
reduce noxious
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
CA167,510A
Other versions
CA167510S (en
Inventor
Friedrich Scholl
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
Application granted granted Critical
Publication of CA1004029A publication Critical patent/CA1004029A/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
    • F01N3/222—Control of additional air supply only, e.g. using by-passes or variable air pump drives using electric valves 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
    • 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
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/04—Combinations of different methods of purification afterburning and catalytic conversion
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
CA167,510A 1972-03-30 1973-03-29 Method to reduce noxious components in the exhaust of internal combustion engines Expired CA1004029A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2215533A DE2215533C3 (en) 1972-03-30 1972-03-30 Device for reducing the harmful components in the exhaust gases of an internal combustion engine

Publications (1)

Publication Number Publication Date
CA1004029A true CA1004029A (en) 1977-01-25

Family

ID=5840619

Family Applications (1)

Application Number Title Priority Date Filing Date
CA167,510A Expired CA1004029A (en) 1972-03-30 1973-03-29 Method to reduce noxious components in the exhaust of internal combustion engines

Country Status (19)

Country Link
US (1) US3832848A (en)
JP (1) JPS554208B2 (en)
AR (1) AR205878A1 (en)
AT (1) AT323474B (en)
BE (1) BE797541A (en)
BR (1) BR7302172D0 (en)
CA (1) CA1004029A (en)
CH (1) CH557951A (en)
CS (1) CS160623B2 (en)
DE (1) DE2215533C3 (en)
ES (1) ES413136A1 (en)
FR (1) FR2178606A5 (en)
GB (1) GB1429664A (en)
IT (1) IT981752B (en)
NL (1) NL7304375A (en)
PL (1) PL85218B1 (en)
SU (1) SU826971A3 (en)
TR (1) TR18184A (en)
ZA (1) ZA731812B (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2235852B2 (en) * 1972-07-21 1975-10-30 Deutsche Vergaser Gmbh & Co Kg, 4040 Neuss Control device for dimensioning additional air for the exhaust gas afterburner of an internal combustion engine
DE2326718C2 (en) * 1973-05-25 1975-08-28 Deutsche Vergaser Gmbh & Co Kg, 4040 Neuss Control device for metering an additional amount of air to improve combustion in internal combustion engines or post-combustion of exhaust gases from internal combustion engines
DE2333072A1 (en) * 1973-06-29 1975-01-16 Bosch Gmbh Robert METHOD OF DETOXING THE EXHAUST GAS
DE2401417C2 (en) * 1974-01-12 1981-10-01 Robert Bosch Gmbh, 7000 Stuttgart Process for detoxifying the exhaust gases of an internal combustion engine
FR2260751B1 (en) * 1974-02-08 1976-06-25 Peugeot & Renault
US3927524A (en) * 1974-02-22 1975-12-23 Garrett Corp Engine exhaust reactor air flow ratio control method and apparatus
DE2422938C2 (en) * 1974-05-11 1982-07-08 Robert Bosch Gmbh, 7000 Stuttgart Switching device for the controlled addition of additional air to the exhaust gas of an internal combustion engine
JPS5166934A (en) * 1974-12-06 1976-06-10 Nissan Motor Nainenkikanno kunenhiseigyosochi
JPS51123428A (en) * 1975-04-21 1976-10-28 Nissan Motor Co Ltd Exhaust gas purifier
US3986352A (en) * 1975-05-08 1976-10-19 General Motors Corporation Closed loop fuel control using air injection in open loop modes
JPS52106720U (en) * 1976-02-10 1977-08-13
JPS52139820A (en) * 1976-05-18 1977-11-22 Toyota Motor Corp Exhaust gas purifier for internal combustion engine
JPS5319616U (en) * 1976-07-30 1978-02-20
JPS5392031A (en) * 1977-01-21 1978-08-12 Nissan Motor Co Ltd Sulphate inhibiting device for internal combustion engine
SE416760B (en) * 1977-08-23 1981-02-02 Volvo Ab SET FOR DETERMINATION OR CONTROL OF THE PROPERTIES OF A CATALYST AND AND OR THE PROCEDURE OF THE CATALYST RESPONSE
JPS566053A (en) * 1979-06-27 1981-01-22 Hitachi Ltd Air fuel ratio controller used for engine with reactor
JPS5698542A (en) * 1980-01-08 1981-08-08 Toyota Motor Corp Air-fuel ratio controlling system for engine
JPS56118536A (en) * 1980-02-22 1981-09-17 Toyota Motor Corp Air fuel ratio controller for engine
DE3832790C2 (en) * 1988-09-27 1997-12-11 Pattas Konstantin N Method and device for regenerating a soot filter
KR950012137B1 (en) * 1989-02-02 1995-10-14 닛뽄 쇼크바이 카가꾸 고오교오 가부시기가이샤 Method of removing nitrogen oxides in exhaust gases from a diesel engine
DE3926516A1 (en) * 1989-08-10 1991-02-14 Oberland Mangold Gmbh CONTROL CIRCUIT FOR INFLUENCING THE EXHAUST GAS COMPOSITION OF AN INTERNAL COMBUSTION ENGINE
DE4120891A1 (en) * 1991-06-25 1993-01-07 Bayerische Motoren Werke Ag Combustion engine pumping fresh air into exhaust system - is checked for correct exhaust treatment function by direct or indirect measurement of pump power consumption
JP2601072B2 (en) * 1991-09-20 1997-04-16 株式会社日立製作所 Internal combustion engine, operating method thereof, and automobile
DE4225361A1 (en) * 1992-07-31 1994-02-03 Audi Ag Functional testing of secondary air admission into IC engine exhaust - involves measuring lambda value of exhaust gases by sensor supplying electronic control unit for secondary air pump and valve
US5822976A (en) * 1995-04-05 1998-10-20 Ford Global Technologies, Inc. Method and system for controlling the amount of secondary air introduced into an internal combustion engine
DE10329522B4 (en) * 2003-06-30 2006-02-16 Daimlerchrysler Ag Method for determining the amount of a secondary air injection
DE102007008577B3 (en) * 2007-02-16 2008-10-23 Audi Ag Method and device for generating ammonia for the exhaust gas treatment in internal combustion engines in a motor vehicle
DE102011117736A1 (en) * 2011-11-07 2013-05-08 Honeywell Technologies Sarl Method for operating a gas burner

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2244669A (en) * 1936-08-01 1941-06-10 Askania Werke Ag Control device for the fuel feed of internal combustion engines
US3032969A (en) * 1961-08-28 1962-05-08 Llewellyn T Barnes Venturi degassing attachment
AT266497B (en) * 1963-09-12 1968-11-25 Bosch Gmbh Robert Electrical measuring device
US3406515A (en) * 1964-01-02 1968-10-22 Texaco Inc Internal combustion engine system for exhaust emissions control
US3464801A (en) * 1964-09-28 1969-09-02 Tenex Corp The Catalytic system for inert gas generation
US3441381A (en) * 1965-06-22 1969-04-29 Engelhard Ind Inc Apparatus for purifying exhaust gases of an internal combustion engine
US3738341A (en) * 1969-03-22 1973-06-12 Philips Corp Device for controlling the air-fuel ratio {80 {11 in a combustion engine
US3616274A (en) * 1969-11-24 1971-10-26 Gen Motors Corp Method and apparatus for monitoring exhaust gas
US3683625A (en) * 1970-05-25 1972-08-15 Edward J Mccrink Smog reducer
US3730157A (en) * 1970-05-25 1973-05-01 Universal Oil Prod Co Carburetor control system and method for regulating air to fuel ratio
US3696618A (en) * 1971-04-19 1972-10-10 Universal Oil Prod Co Control system for an engine system
US3768259A (en) * 1971-07-06 1973-10-30 Universal Oil Prod Co Control for an engine system

Also Published As

Publication number Publication date
ZA731812B (en) 1973-12-19
AT323474B (en) 1975-07-10
DE2215533A1 (en) 1973-10-11
CH557951A (en) 1975-01-15
JPS4913515A (en) 1974-02-06
BE797541A (en) 1973-07-16
ES413136A1 (en) 1976-01-16
BR7302172D0 (en) 1974-06-27
DE2215533C3 (en) 1979-11-22
AR205878A1 (en) 1976-06-15
CS160623B2 (en) 1975-03-28
FR2178606A5 (en) 1973-11-09
JPS554208B2 (en) 1980-01-29
US3832848A (en) 1974-09-03
SU826971A3 (en) 1981-04-30
NL7304375A (en) 1973-10-02
TR18184A (en) 1978-02-26
DE2215533B2 (en) 1979-03-29
IT981752B (en) 1974-10-10
PL85218B1 (en) 1976-04-30
GB1429664A (en) 1976-03-24

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