GB1429664A - Internal combustion engines - Google Patents

Internal combustion engines

Info

Publication number
GB1429664A
GB1429664A GB1506373A GB1506373A GB1429664A GB 1429664 A GB1429664 A GB 1429664A GB 1506373 A GB1506373 A GB 1506373A GB 1506373 A GB1506373 A GB 1506373A GB 1429664 A GB1429664 A GB 1429664A
Authority
GB
United Kingdom
Prior art keywords
engine
reactor
probe
exhaust gas
secondary air
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
GB1506373A
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 GB1429664A publication Critical patent/GB1429664A/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 ; Methods of operation or control of catalytic converters
    • 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)

Abstract

1429664 Treating I.C. engine exhaust gas ROBERT BOSCH GmbH 29 March 1973 [30 March 1972] 15063/73 Heading B1W An I.C. engine has an exhaust gas system, means for controlling the engine air/fuel mixture to enable a rich mixture to be supplied to the engine, a reactor in the exhaust gas system for decomposing injurious constituents in the exhaust gases, a secondary air feed line leading into the exhaust gas system at a location upstream of the reactor, an oxygen probe positioned at a location in the exhaust system downstream of the outlet of the secondary air feed line for assertaining the amount of oxygen in the exhaust gases at that location, and means responsive to a signal generated by the probe for regulating the rate of feed of secondary air through the secondary air feed line. Engine 10 is supplied with a slightly substoichiometric fuel/air mixture, a catalytic reactor 12 and an oxygen probe 13 which generates a signal which operates a valve 15 via an amplifier 14. Valve 15 controls the flow of air from an engine driven pump 17 into the exhaust system. The probe 13 may be upstream of the reactor 12 and have a catalytically effective surface or a catalyst associated specifically with the probe may be arranged upstream thereof. A thermal reactor may be used instead of, or in addition to the catalytic reactor.
GB1506373A 1972-03-30 1973-03-29 Internal combustion engines Expired GB1429664A (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
GB1429664A true GB1429664A (en) 1976-03-24

Family

ID=5840619

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1506373A Expired GB1429664A (en) 1972-03-30 1973-03-29 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 (29)

* 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
CA2026300C (en) * 1989-10-23 1996-07-16 Monika Engel-Bader Catalyst system for producing polyethylene terephthalate from a lower dialkyl ester of a dicarboxylic acid and a glycol
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
AT266496B (en) * 1963-09-12 1968-11-25 Bosch Gmbh Robert Measuring head for electrical measuring devices for exhaust gas testing on internal combustion engines
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
CH557951A (en) 1975-01-15
JPS4913515A (en) 1974-02-06
BE797541A (en) 1973-07-16
CA1004029A (en) 1977-01-25
US3832848A (en) 1974-09-03
AR205878A1 (en) 1976-06-15
FR2178606A5 (en) 1973-11-09
TR18184A (en) 1978-02-26
IT981752B (en) 1974-10-10
AT323474B (en) 1975-07-10
JPS554208B2 (en) 1980-01-29
ZA731812B (en) 1973-12-19
NL7304375A (en) 1973-10-02
BR7302172D0 (en) 1974-06-27
SU826971A3 (en) 1981-04-30
ES413136A1 (en) 1976-01-16
DE2215533A1 (en) 1973-10-11
DE2215533B2 (en) 1979-03-29
CS160623B2 (en) 1975-03-28
PL85218B1 (en) 1976-04-30
DE2215533C3 (en) 1979-11-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee