FR2252766A5 - Electronic ignition system for I.C. engine - has current through saturating transformer cut off when capacitor discharges - Google Patents

Electronic ignition system for I.C. engine - has current through saturating transformer cut off when capacitor discharges

Info

Publication number
FR2252766A5
FR2252766A5 FR7341534A FR7341534A FR2252766A5 FR 2252766 A5 FR2252766 A5 FR 2252766A5 FR 7341534 A FR7341534 A FR 7341534A FR 7341534 A FR7341534 A FR 7341534A FR 2252766 A5 FR2252766 A5 FR 2252766A5
Authority
FR
France
Prior art keywords
transformer
capacitor
primary
current
engine
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
FR7341534A
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.)
Ducellier et Cie
Original Assignee
Ducellier et Cie
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 Ducellier et Cie filed Critical Ducellier et Cie
Priority to FR7341534A priority Critical patent/FR2252766A5/en
Priority to GB4591774A priority patent/GB1467286A/en
Priority to IT2889774A priority patent/IT1025277B/en
Priority to ES432011A priority patent/ES432011A1/en
Priority to DE19742455457 priority patent/DE2455457A1/en
Priority to NL7415245A priority patent/NL7415245A/en
Application granted granted Critical
Publication of FR2252766A5 publication Critical patent/FR2252766A5/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
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P3/00—Other installations
    • F02P3/06—Other installations having capacitive energy storage
    • F02P3/08—Layout of circuits
    • F02P3/0876—Layout of circuits the storage capacitor being charged by means of an energy converter (DC-DC converter) or of an intermediate storage inductance
    • F02P3/0884—Closing the discharge circuit of the storage capacitor with semiconductor devices
    • 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
    • F02P9/00—Electric spark ignition control, not otherwise provided for
    • F02P9/002—Control of spark intensity, intensifying, lengthening, suppression
    • F02P9/007—Control of spark intensity, intensifying, lengthening, suppression by supplementary electrical discharge in the pre-ionised electrode interspace of the sparking plug, e.g. plasma jet ignition

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

A capacitor discharges through the primary of an induction coil. It is charged through a saturating transformer and its discharge is controlled by a thyristor. The primary of the transformer contains transistors which are locked by the contact breaker. When the contact breaker opens the transistors are unlocked, current flows through the transformer primary and at the same time the thyristor allows the capacitor to discharge. When the transformer saturates the transformer secondary current reverses and charges the capacitor through a diode. The capacitor holds the charge until the next opening of the contact breaker. The circuit prevents energy passing from the transformer to the capacitor while the latter is discharging, which in conventional circuits causes misfiring.
FR7341534A 1973-11-22 1973-11-22 Electronic ignition system for I.C. engine - has current through saturating transformer cut off when capacitor discharges Expired FR2252766A5 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR7341534A FR2252766A5 (en) 1973-11-22 1973-11-22 Electronic ignition system for I.C. engine - has current through saturating transformer cut off when capacitor discharges
GB4591774A GB1467286A (en) 1973-11-22 1974-10-23 Ignition system for internal combustion engines particularly for motor vehicles
IT2889774A IT1025277B (en) 1973-11-22 1974-10-29 DEVICE FOR IGNITION FOR INTERNAL COMBUSTION ENGINES ESPECIALLY FOR MOTOR VEHICLES
ES432011A ES432011A1 (en) 1973-11-22 1974-11-16 Ignition system for internal combustion engines particularly for motor vehicles
DE19742455457 DE2455457A1 (en) 1973-11-22 1974-11-22 IGNITION DEVICE FOR COMBUSTION ENGINES
NL7415245A NL7415245A (en) 1973-11-22 1974-11-22 IGNITION DEVICE FOR A COMBUSTION ENGINE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7341534A FR2252766A5 (en) 1973-11-22 1973-11-22 Electronic ignition system for I.C. engine - has current through saturating transformer cut off when capacitor discharges

Publications (1)

Publication Number Publication Date
FR2252766A5 true FR2252766A5 (en) 1975-06-20

Family

ID=9128090

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7341534A Expired FR2252766A5 (en) 1973-11-22 1973-11-22 Electronic ignition system for I.C. engine - has current through saturating transformer cut off when capacitor discharges

Country Status (1)

Country Link
FR (1) FR2252766A5 (en)

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Legal Events

Date Code Title Description
ST Notification of lapse