FR2447827A1 - DELAYED ACTION ELECTRICAL CIRCUIT - Google Patents

DELAYED ACTION ELECTRICAL CIRCUIT

Info

Publication number
FR2447827A1
FR2447827A1 FR8002430A FR8002430A FR2447827A1 FR 2447827 A1 FR2447827 A1 FR 2447827A1 FR 8002430 A FR8002430 A FR 8002430A FR 8002430 A FR8002430 A FR 8002430A FR 2447827 A1 FR2447827 A1 FR 2447827A1
Authority
FR
France
Prior art keywords
electrical circuit
resistance
temperature
delayed action
circuit
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.)
Pending
Application number
FR8002430A
Other languages
French (fr)
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.)
Elmwood Sensors Ltd
Elmwood Sensors Inc
Original Assignee
Elmwood Sensors Ltd
Elmwood Sensors Inc
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 Elmwood Sensors Ltd, Elmwood Sensors Inc filed Critical Elmwood Sensors Ltd
Publication of FR2447827A1 publication Critical patent/FR2447827A1/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
    • 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
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines

Abstract

UN CIRCUIT ELECTRIQUE COMPREND UN DIVISEUR DE TENSION R, R COMPORTANT UN ELEMENT SENSIBLE A LA TEMPERATURE R, PROPRE A SUBIR UN BRUSQUE CHANGEMENT DE RESISTANCE A UNE TEMPERATURE D'ANOMALIE, ET DES MOYENS INTERRUPTEURS SEMI-CONDUCTEURS T, T RELIES AU DIVISEUR DE TENSION R, R DE FACON TELLE QUE LEUR ETAT DE FONCTIONNEMENT DEPENDE DE LA RESISTANCE DE CET ELEMENT R. CELUI-CI EST AGENCE DE FACON A ETRE CHAUFFE, LORSQUE LE CIRCUIT EST EXCITE, PAR UN CHAUFFAGE A EFFET JOULE INCORPORE A CE CIRCUIT, A UN TAUX PRATIQUEMENT FIXE A PARTIR DE LA TEMPERATURE AMBIANTE. LE CHANGEMENT DE RESISTANCE QUI EN RESULTE DANS L'ELEMENT R PROVOQUE UN CHANGEMENT D'ETAT DES MOYENS INTERRUPTEURS T, T QUI EST RETARDE, A PARTIR DE LADITE EXCITATION, D'UN LAPS DE TEMPS QUI DEPEND DE LA TEMPERATURE AMBIANTE.AN ELECTRICAL CIRCUIT INCLUDES A VOLTAGE DIVIDER R, R INCLUDING AN ELEMENT SENSITIVE TO THE TEMPERATURE R, SUITABLE TO SUBJECT A Sudden change in resistance to an abnormal temperature, and of the means T semiconductor switches, T connected to the divider R, R IN A WAY SUCH THAT THEIR STATE OF OPERATION DEPENDS ON THE RESISTANCE OF THIS ELEMENT R. THIS IS ARRANGED IN A WAY TO BE HEATED, WHEN THE CIRCUIT IS EXCITED, BY JOULE-EFFECT HEATING INCORPORATED IN THIS CIRCUIT, AT A PRACTICALLY FIXED RATE FROM THE AMBIENT TEMPERATURE. THE RESISTANCE CHANGE RESULTING FROM IT IN ELEMENT R CAUSES A STATE CHANGE OF THE T, T SWITCHES WHICH IS DELAYED FROM THE SAID EXCITATION BY A LAP OF TIME DEPENDING ON THE AMBIENT TEMPERATURE.

FR8002430A 1979-02-05 1980-02-05 DELAYED ACTION ELECTRICAL CIRCUIT Pending FR2447827A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7903961 1979-02-05

Publications (1)

Publication Number Publication Date
FR2447827A1 true FR2447827A1 (en) 1980-08-29

Family

ID=10502962

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8002430A Pending FR2447827A1 (en) 1979-02-05 1980-02-05 DELAYED ACTION ELECTRICAL CIRCUIT

Country Status (3)

Country Link
DE (1) DE3003722A1 (en)
FR (1) FR2447827A1 (en)
GB (1) GB2045986B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103226A2 (en) * 1982-09-13 1984-03-21 Karl Hopt GmbH Apparatus for reducing the fuel feed to the engine of a lorry

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19519477C2 (en) * 1995-05-27 1998-07-09 Bosch Gmbh Robert Integrated circuit with thermal overload protection, especially suitable for automotive ignition coil control

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2066347A5 (en) * 1969-10-22 1971-08-06 Nissan Motor
FR2119239A5 (en) * 1970-12-24 1972-08-04 Sopromi Soc Proc Modern Inject
US3716034A (en) * 1969-10-02 1973-02-13 Bosch Gmbh Robert Temperature-dependent time-delay switch
FR2386687A1 (en) * 1977-04-07 1978-11-03 Bosch Gmbh Robert ELECTRICAL CONTROL CIRCUIT, ESPECIALLY FOR A FUEL SUPPLY INSTALLATION OF AN INTERNAL COMBUSTION ENGINE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3716034A (en) * 1969-10-02 1973-02-13 Bosch Gmbh Robert Temperature-dependent time-delay switch
FR2066347A5 (en) * 1969-10-22 1971-08-06 Nissan Motor
FR2119239A5 (en) * 1970-12-24 1972-08-04 Sopromi Soc Proc Modern Inject
FR2386687A1 (en) * 1977-04-07 1978-11-03 Bosch Gmbh Robert ELECTRICAL CONTROL CIRCUIT, ESPECIALLY FOR A FUEL SUPPLY INSTALLATION OF AN INTERNAL COMBUSTION ENGINE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103226A2 (en) * 1982-09-13 1984-03-21 Karl Hopt GmbH Apparatus for reducing the fuel feed to the engine of a lorry
EP0103226A3 (en) * 1982-09-13 1984-05-02 Karl Hopt GmbH Apparatus for reducing the fuel feed to the engine of a lorry

Also Published As

Publication number Publication date
DE3003722A1 (en) 1980-08-14
GB2045986B (en) 1982-10-06
GB2045986A (en) 1980-11-05

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