FR2273173A1 - Ignition system for internal combustion engine - maintains constant duration of spark independently of engine speed - Google Patents

Ignition system for internal combustion engine - maintains constant duration of spark independently of engine speed

Info

Publication number
FR2273173A1
FR2273173A1 FR7419649A FR7419649A FR2273173A1 FR 2273173 A1 FR2273173 A1 FR 2273173A1 FR 7419649 A FR7419649 A FR 7419649A FR 7419649 A FR7419649 A FR 7419649A FR 2273173 A1 FR2273173 A1 FR 2273173A1
Authority
FR
France
Prior art keywords
spark
independently
internal combustion
ignition system
combustion 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.)
Granted
Application number
FR7419649A
Other languages
French (fr)
Other versions
FR2273173B1 (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.)
COISSARD PAUL FR
Original Assignee
COISSARD PAUL FR
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 COISSARD PAUL FR filed Critical COISSARD PAUL FR
Priority to FR7419649A priority Critical patent/FR2273173A1/en
Priority to CH682275A priority patent/CH606791A5/xx
Priority to BE156871A priority patent/BE829681A/en
Priority to SE7506206A priority patent/SE7506206L/en
Priority to IT23871/75A priority patent/IT1050719B/en
Priority to DE19752524043 priority patent/DE2524043A1/en
Priority to ES438086A priority patent/ES438086A1/en
Publication of FR2273173A1 publication Critical patent/FR2273173A1/en
Application granted granted Critical
Publication of FR2273173B1 publication Critical patent/FR2273173B1/fr
Granted 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
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F02P3/04—Layout of circuits
    • F02P3/045—Layout of circuits for control of the dwell or anti dwell time
    • F02P3/0453—Opening or closing the primary coil circuit with semiconductor devices

Landscapes

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

Abstract

The system utilises an electronic circuit which can estimate the duration of one cycle of ignitiona nd can also fix the time of ignition with reference to the engine cycle so that the circuit of the ignition coil is opened and closed to provide a constant period of coil energisation at the precise phase of the engine cycle. This is achieved by using a condenser which retains a predetermined level of the charge acquired during the previous cycle and is then allowed to discharge at a constant rate by means of an isolating diode, a storage condenser and a transistor associated with a resistance.
FR7419649A 1974-05-31 1974-05-31 Ignition system for internal combustion engine - maintains constant duration of spark independently of engine speed Granted FR2273173A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7419649A FR2273173A1 (en) 1974-05-31 1974-05-31 Ignition system for internal combustion engine - maintains constant duration of spark independently of engine speed
CH682275A CH606791A5 (en) 1974-05-31 1975-05-28
BE156871A BE829681A (en) 1974-05-31 1975-05-29 IMPROVEMENTS RELATED TO THE IGNITION OF EXPLOSION ENGINES INCORPORATING AN IGNITION COIL AND A BREAKER
SE7506206A SE7506206L (en) 1974-05-31 1975-05-30 EXPLOSION ENGINE IGNITION DEVICE
IT23871/75A IT1050719B (en) 1974-05-31 1975-05-30 IGNITION DEVICE FOR COMBUSTION ENGINES USING A LOGIC CONTROL CIRCUIT
DE19752524043 DE2524043A1 (en) 1974-05-31 1975-05-30 Ignition system for internal combustion engine - maintains constant duration of spark independently of engine speed
ES438086A ES438086A1 (en) 1974-05-31 1975-05-30 Device or ignition system for explosion engines. (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7419649A FR2273173A1 (en) 1974-05-31 1974-05-31 Ignition system for internal combustion engine - maintains constant duration of spark independently of engine speed

Publications (2)

Publication Number Publication Date
FR2273173A1 true FR2273173A1 (en) 1975-12-26
FR2273173B1 FR2273173B1 (en) 1978-02-17

Family

ID=9139733

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7419649A Granted FR2273173A1 (en) 1974-05-31 1974-05-31 Ignition system for internal combustion engine - maintains constant duration of spark independently of engine speed

Country Status (2)

Country Link
BE (1) BE829681A (en)
FR (1) FR2273173A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369707A1 (en) * 1976-10-26 1978-05-26 Motorola Inc THRESHOLD CIRCUIT FOR ELECTRONIC IGNITION SYSTEM
FR2420664A1 (en) * 1978-03-21 1979-10-19 Bosch Gmbh Robert IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINE
FR2437505A1 (en) * 1978-09-29 1980-04-25 Thomson Csf IC engine ignition circuit with coil current control - maintains constant coil current and uses frequency voltage converter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369707A1 (en) * 1976-10-26 1978-05-26 Motorola Inc THRESHOLD CIRCUIT FOR ELECTRONIC IGNITION SYSTEM
FR2420664A1 (en) * 1978-03-21 1979-10-19 Bosch Gmbh Robert IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINE
FR2437505A1 (en) * 1978-09-29 1980-04-25 Thomson Csf IC engine ignition circuit with coil current control - maintains constant coil current and uses frequency voltage converter

Also Published As

Publication number Publication date
BE829681A (en) 1975-09-15
FR2273173B1 (en) 1978-02-17

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Legal Events

Date Code Title Description
ST Notification of lapse