FR2687255B1 - A method of estimating the state of wear of a candle. - Google Patents

A method of estimating the state of wear of a candle.

Info

Publication number
FR2687255B1
FR2687255B1 FR9201385A FR9201385A FR2687255B1 FR 2687255 B1 FR2687255 B1 FR 2687255B1 FR 9201385 A FR9201385 A FR 9201385A FR 9201385 A FR9201385 A FR 9201385A FR 2687255 B1 FR2687255 B1 FR 2687255B1
Authority
FR
France
Prior art keywords
candle
estimating
wear
state
method
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 - Fee Related
Application number
FR9201385A
Other languages
French (fr)
Other versions
FR2687255A1 (en
Inventor
Alain Fernandez
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.)
Regie Nationale des Usines Renault
Original Assignee
Regie Nationale des Usines Renault
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 Regie Nationale des Usines Renault filed Critical Regie Nationale des Usines Renault
Priority to FR9201385A priority Critical patent/FR2687255B1/en
Publication of FR2687255A1 publication Critical patent/FR2687255A1/en
Application granted granted Critical
Publication of FR2687255B1 publication Critical patent/FR2687255B1/en
Anticipated expiration legal-status Critical
Application status is Expired - Fee Related legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00Component parts, details or accessories, not otherwise provided for
    • F02B77/08Safety, indicating or supervising devices
    • F02B77/083Safety, indicating or supervising devices relating to maintenance, e.g. diagnostic device
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P11/00Safety means for electric spark ignition, not otherwise provided for
    • F02P11/06Indicating unsafe conditions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00Engines characterised by fuel-air mixture compression
    • F02B1/02Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
FR9201385A 1992-02-07 1992-02-07 A method of estimating the state of wear of a candle. Expired - Fee Related FR2687255B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9201385A FR2687255B1 (en) 1992-02-07 1992-02-07 A method of estimating the state of wear of a candle.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9201385A FR2687255B1 (en) 1992-02-07 1992-02-07 A method of estimating the state of wear of a candle.

Publications (2)

Publication Number Publication Date
FR2687255A1 FR2687255A1 (en) 1993-08-13
FR2687255B1 true FR2687255B1 (en) 1994-03-25

Family

ID=9426429

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9201385A Expired - Fee Related FR2687255B1 (en) 1992-02-07 1992-02-07 A method of estimating the state of wear of a candle.

Country Status (1)

Country Link
FR (1) FR2687255B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5477827A (en) * 1994-05-16 1995-12-26 Detroit Diesel Corporation Method and system for engine control
DE102006011886A1 (en) * 2006-03-15 2007-09-20 Bayerische Motoren Werke Ag Device and method for determining the wear of a spark plug of an internal combustion engine
DE102015120266A1 (en) * 2015-11-23 2017-05-24 Volkswagen Ag Method for estimating the wear of a spark plug
EP3578804A1 (en) * 2018-06-07 2019-12-11 Caterpillar Energy Solutions GmbH Spark plug electrode wear rate determination for a spark-ignited engine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2824190C2 (en) * 1978-06-02 1987-06-11 Robert Bosch Gmbh, 7000 Stuttgart, De
DE3341880C2 (en) * 1983-11-19 1987-10-15 Bayerische Motoren Werke Ag, 8000 Muenchen, De
JP2603067B2 (en) * 1986-04-21 1997-04-23 株式会社小松製作所 Vehicle maintenance management for the monitoring system
US5044194A (en) * 1990-08-24 1991-09-03 Ford Motor Company Misfire detection in an internal combustion engine

Also Published As

Publication number Publication date
FR2687255A1 (en) 1993-08-13

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Legal Events

Date Code Title Description
ST Notification of lapse