FR2469574A1 - - Google Patents

Info

Publication number
FR2469574A1
FR2469574A1 FR8023900A FR8023900A FR2469574A1 FR 2469574 A1 FR2469574 A1 FR 2469574A1 FR 8023900 A FR8023900 A FR 8023900A FR 8023900 A FR8023900 A FR 8023900A FR 2469574 A1 FR2469574 A1 FR 2469574A1
Authority
FR
France
Prior art keywords
camshaft
ignition
ignition angle
engine
variation
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.)
Granted
Application number
FR8023900A
Other languages
French (fr)
Other versions
FR2469574B1 (en
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of FR2469574A1 publication Critical patent/FR2469574A1/fr
Application granted granted Critical
Publication of FR2469574B1 publication Critical patent/FR2469574B1/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/10—Drives of distributors or of circuit-makers or -breakers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/05—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means
    • F02P5/14—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means dependent on specific conditions other than engine speed or engine fluid pressure, e.g. temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Electrical Control Of Ignition Timing (AREA)

Abstract

a. L'invention concerne un dispositif pour régler l'angle d'allumage d'un moteur à combustion interne en fonction de sa température. b. Ce dispositif est caractérisé en ce que l'arbre 5 du distributeur d'allumage 4 et l'arbre à cames 1 du moteur sont en liaison par des engrenages hélicoïdaux 3, 2, le montage 7 de l'arbre à cames permettant sa dilatation, l'arbre à cames et son carter 9 présentant des coefficients de dilatation thermique différents, les paramètres étant déterminés pour que la variation relative de la longueur de l'arbre à cames assure sensiblement la variation voulue du l'angle d'allumage. c. L'invention est applicable aux moteurs à allumage commandé.at. The invention relates to a device for adjusting the ignition angle of an internal combustion engine as a function of its temperature. b. This device is characterized in that the shaft 5 of the ignition distributor 4 and the camshaft 1 of the engine are connected by helical gears 3, 2, the mounting 7 of the camshaft allowing its expansion, the camshaft and its casing 9 having different thermal expansion coefficients, the parameters being determined so that the relative variation in the length of the camshaft substantially ensures the desired variation in the ignition angle. vs. The invention is applicable to spark ignition engines.

FR8023900A 1979-11-10 1980-11-07 Expired FR2469574B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2945578A DE2945578C2 (en) 1979-11-10 1979-11-10 Device for adjusting the ignition point of an internal combustion engine

Publications (2)

Publication Number Publication Date
FR2469574A1 true FR2469574A1 (en) 1981-05-22
FR2469574B1 FR2469574B1 (en) 1984-04-27

Family

ID=6085745

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8023900A Expired FR2469574B1 (en) 1979-11-10 1980-11-07

Country Status (4)

Country Link
DE (1) DE2945578C2 (en)
FR (1) FR2469574B1 (en)
GB (1) GB2062756B (en)
IT (1) IT1134192B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007003966A1 (en) * 2007-01-26 2008-07-31 Schaeffler Kg Raumnockentrieb with an improved balance of the valve lift

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1497843A (en) * 1923-09-24 1924-06-17 North East Electric Co Drive mechanism for circuit controllers
DE2051956B2 (en) * 1969-10-22 1978-08-17 Nissan Motor Co., Ltd., Yokohama, Kanagawa (Japan) Device for adjusting the ignition point of an internal combustion engine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1825388A (en) * 1929-05-21 1931-09-29 Delco Remy Corp Ignition apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1497843A (en) * 1923-09-24 1924-06-17 North East Electric Co Drive mechanism for circuit controllers
DE2051956B2 (en) * 1969-10-22 1978-08-17 Nissan Motor Co., Ltd., Yokohama, Kanagawa (Japan) Device for adjusting the ignition point of an internal combustion engine

Also Published As

Publication number Publication date
DE2945578C2 (en) 1982-09-30
FR2469574B1 (en) 1984-04-27
GB2062756B (en) 1983-06-29
IT1134192B (en) 1986-07-31
IT8025795A0 (en) 1980-11-06
DE2945578A1 (en) 1981-05-21
GB2062756A (en) 1981-05-28

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Legal Events

Date Code Title Description
ST Notification of lapse