ES406794A1 - Automatic device for controlling catalytic mufflers - Google Patents

Automatic device for controlling catalytic mufflers

Info

Publication number
ES406794A1
ES406794A1 ES406794A ES406794A ES406794A1 ES 406794 A1 ES406794 A1 ES 406794A1 ES 406794 A ES406794 A ES 406794A ES 406794 A ES406794 A ES 406794A ES 406794 A1 ES406794 A1 ES 406794A1
Authority
ES
Spain
Prior art keywords
inlet
temperature
responsive
stage
automatic 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
ES406794A
Other languages
Spanish (es)
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.)
SnamProgetti SpA
Original Assignee
SnamProgetti SpA
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 SnamProgetti SpA filed Critical SnamProgetti SpA
Publication of ES406794A1 publication Critical patent/ES406794A1/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
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1446—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being exhaust temperatures
    • 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
    • F01N3/2053—By-passing catalytic reactors, e.g. to prevent overheating
    • 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
    • F01N2390/00—Arrangements for controlling or regulating exhaust apparatus
    • F01N2390/02—Arrangements for controlling or regulating exhaust apparatus using electric components 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
    • F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
    • F01N2410/02—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device in case of high temperature, e.g. overheating of catalytic reactor
    • 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
    • F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
    • F01N2410/10—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device for reducing flow resistance, e.g. to obtain more engine power

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

A device for automatically controlling a by-pass electro-valve of a catalytic muffler comprising three inlet stages, the first inlet stage is responsive to the speed or number of engine revolutions, the second inlet stage is responsive to the throttle position and includes a retarding circuit and store, and the third inlet stage is responsive to the temperature of the catalyst and includes means for comparing the temperature of the catalyst with a maximum allowable temperature (TMAX.) and a predetermined running temperature (TS). The three inlet stages are electrically coupled to an outlet stage which includes a timer for producing a pulse of predetermined duration.
ES406794A 1971-09-10 1972-09-06 Automatic device for controlling catalytic mufflers Expired ES406794A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2844671 1971-09-10

Publications (1)

Publication Number Publication Date
ES406794A1 true ES406794A1 (en) 1975-11-01

Family

ID=11223620

Family Applications (1)

Application Number Title Priority Date Filing Date
ES406794A Expired ES406794A1 (en) 1971-09-10 1972-09-06 Automatic device for controlling catalytic mufflers

Country Status (18)

Country Link
US (1) US3837165A (en)
JP (1) JPS5230652B2 (en)
AT (1) AT326957B (en)
BE (1) BE788422A (en)
CA (1) CA957750A (en)
CH (1) CH569187A5 (en)
CS (1) CS159712B2 (en)
DD (1) DD101454A5 (en)
DE (1) DE2244227C3 (en)
ES (1) ES406794A1 (en)
FR (1) FR2152099A5 (en)
GB (1) GB1406876A (en)
LU (1) LU66027A1 (en)
NL (1) NL162455C (en)
PL (1) PL78367B1 (en)
SE (1) SE396443B (en)
SU (1) SU578017A3 (en)
YU (1) YU36063B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2360581A1 (en) * 1973-12-05 1975-06-19 Porsche Ag DEVICE FOR CATALYTIC AFTER-BURNING OF EXHAUST GASES IN THE EXHAUST SYSTEM OF A COMBUSTION ENGINE
DE2406073C3 (en) * 1974-02-08 1982-02-25 Deutsche Fernsprecher Gesellschaft Mbh Marburg, 3550 Marburg Circuit arrangement for temperature monitoring on catalytic converters for the exhaust gases from motor vehicle internal combustion engines
US3948228A (en) * 1974-11-06 1976-04-06 The Bendix Corporation Exhaust gas sensor operational detection system
DE3619897C2 (en) * 1986-06-13 1993-10-07 Bayerische Motoren Werke Ag Protection circuit for catalytic exhaust aftertreatment devices
DE4308661A1 (en) * 1993-03-18 1994-09-22 Emitec Emissionstechnologie Method and device for monitoring the function of a catalytic converter
JPH07225203A (en) * 1994-02-15 1995-08-22 Mitsubishi Electric Corp Deterioration detector for catalyst converter
US6712888B2 (en) 2002-06-24 2004-03-30 Albert F. Siska Engine emission control system and method
JP2004138013A (en) * 2002-10-21 2004-05-13 Suzuki Motor Corp Exhaust emission control structure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1451881A1 (en) * 1963-09-07 1969-01-23 Daimler Benz Ag Device for the catalytic post-combustion of exhaust gases from an internal combustion engine, in particular in motor vehicles
US3548792A (en) * 1969-02-11 1970-12-22 Judson G Palmer Control apparatus for internal-combustion engines
GB1292914A (en) * 1969-07-28 1972-10-18 Nissan Motor Exhaust gas after-burning system
JPS5028563B1 (en) * 1969-12-29 1975-09-17
US3705497A (en) * 1971-05-10 1972-12-12 Hollins J R Vehicle engine emissions control system

Also Published As

Publication number Publication date
CH569187A5 (en) 1975-11-14
NL7212216A (en) 1973-03-13
LU66027A1 (en) 1973-01-17
DE2244227B2 (en) 1974-04-04
DE2244227A1 (en) 1973-03-15
PL78367B1 (en) 1975-06-30
FR2152099A5 (en) 1973-04-20
JPS5230652B2 (en) 1977-08-09
GB1406876A (en) 1975-09-17
US3837165A (en) 1974-09-24
JPS4857012A (en) 1973-08-10
YU217472A (en) 1981-02-28
AT326957B (en) 1976-01-12
DD101454A5 (en) 1973-11-05
YU36063B (en) 1981-11-13
NL162455C (en) 1980-05-16
ATA774072A (en) 1975-03-15
DE2244227C3 (en) 1974-10-31
CA957750A (en) 1974-11-12
CS159712B2 (en) 1975-01-31
SE396443B (en) 1977-09-19
BE788422A (en) 1973-01-02
SU578017A3 (en) 1977-10-25
NL162455B (en) 1979-12-17

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