GB1460973A - Ignition systems for internal combustion engines - Google Patents

Ignition systems for internal combustion engines

Info

Publication number
GB1460973A
GB1460973A GB2384974A GB2384974A GB1460973A GB 1460973 A GB1460973 A GB 1460973A GB 2384974 A GB2384974 A GB 2384974A GB 2384974 A GB2384974 A GB 2384974A GB 1460973 A GB1460973 A GB 1460973A
Authority
GB
United Kingdom
Prior art keywords
transistor
capacitor
terminal
way
contact breaker
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
GB2384974A
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.)
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
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 BBC Brown Boveri AG Switzerland, BBC Brown Boveri France SA filed Critical BBC Brown Boveri AG Switzerland
Publication of GB1460973A publication Critical patent/GB1460973A/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
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F02P3/04—Layout of circuits
    • F02P3/055—Layout of circuits with protective means to prevent damage to the circuit, e.g. semiconductor devices or the ignition coil
    • F02P3/0552—Opening or closing the primary coil circuit with semiconductor devices
    • F02P3/0556—Protecting the coil when the engine is stopped
    • 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
    • F02P3/05—Layout of circuits for control of the magnitude of the current in the ignition coil
    • F02P3/051—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

1460973 Ignition systems BROWN BOVERI & CIE AG 29 May 1974 [12 June 1973] 23849/74 Heading F1B An ignition system for an internal combustion engine comprises first and second terminals 18, 17 for connection to a direct current source 2, a contact breaker 1, an ignition coil 9 comprising a primary winding 9a and a secondary winding 9b, a first transistor 7 having its collector 7c connected to the primary winding and its emitter 7a connected by way of a resistor 8 to the first terminal 18, a second transistor 4 having its collector connected to the base 7b of the first transistor and having its emitter 4a connected to the second terminal 17, and a third transistor 30 having its emitter 30a connected to the base 4b of the second transistor, having its collector 30c connected to the contact breaker 1 and having its base connected to another ' resistor 31 which in turn is connected by way of a diode 32 to the second terminal 17 and which is also connected by way of a capacitor 33 and a further resistor 19 to the second terminal and by way of the capacitor to the contact breaker. If the engine on which the system is used remains stationary with the contact breaker 1 closed and the ignition circuit switched on a charging current which decreases with time flows to the capacitor 33. When the charging current supplied to the capacitor 33 becomes zero due to the rising charge thereon the transistor 4 and the transistor 7 are switched into the non-conducting state.
GB2384974A 1973-06-12 1974-05-29 Ignition systems for internal combustion engines Expired GB1460973A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2329918A DE2329918A1 (en) 1973-06-12 1973-06-12 IGNITION SYSTEM FOR COMBUSTION MACHINERY

Publications (1)

Publication Number Publication Date
GB1460973A true GB1460973A (en) 1977-01-06

Family

ID=5883773

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2384974A Expired GB1460973A (en) 1973-06-12 1974-05-29 Ignition systems for internal combustion engines

Country Status (7)

Country Link
US (1) US3924595A (en)
JP (1) JPS5048332A (en)
CH (1) CH584353A5 (en)
DE (1) DE2329918A1 (en)
FR (1) FR2233505A2 (en)
GB (1) GB1460973A (en)
IT (1) IT1046848B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565006A2 (en) 1992-04-06 1993-10-13 Fuji Photo Film Co., Ltd. Method for preparing PS plate

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2527725C3 (en) * 1975-06-21 1979-10-18 Volkswagenwerk Ag, 3180 Wolfsburg Circuit arrangement for internal combustion engine ignition devices
DE2533046C3 (en) * 1975-07-24 1978-11-30 Robert Bosch Gmbh, 7000 Stuttgart Ignition device for internal combustion engines
DE2533525C2 (en) * 1975-07-26 1982-11-25 Robert Bosch Gmbh, 7000 Stuttgart Ignition device for an internal combustion engine used to drive a vehicle
FR2347804A1 (en) * 1976-04-05 1977-11-04 Radiotechnique Compelec OPTOELECTRONIC IGNITION DEVICE FOR INTERNAL COMBUSTION ENGINES
US4106460A (en) * 1976-11-18 1978-08-15 Chrysler Corporation Hall effect electronic ignition control unit with automatic shut-down timer
DE2654413C2 (en) * 1976-12-01 1985-10-31 Robert Bosch Gmbh, 7000 Stuttgart Ignition system for internal combustion engines
DE2705715C2 (en) * 1977-02-11 1985-07-04 Robert Bosch Gmbh, 7000 Stuttgart Ignition system for internal combustion engines
JPS53144785A (en) * 1977-05-24 1978-12-16 Nippon Denso Co Ltd Detector for number of revolution of engines
US4368717A (en) * 1980-08-07 1983-01-18 Eltra Corporation Automatic shut-off circuit for electronic ignition system
USRE34079E (en) * 1990-03-30 1992-09-29 Pacer Industries Inc. Method and apparatus for conserving battery power in a snowmobile electrical system
US5024205A (en) * 1990-03-30 1991-06-18 Injection Research Specialists, Inc. Method and apparatus for conserving battery power in a snowmobile electrical system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3087090A (en) * 1961-03-13 1963-04-23 Gen Motors Corp Ignition system
US3219876A (en) * 1961-09-21 1965-11-23 Gen Motors Corp Ignition system
US3249808A (en) * 1961-09-21 1966-05-03 Gen Motors Corp Ignition system
NL7013168A (en) * 1970-09-05 1972-03-07
DE2137204C3 (en) * 1971-07-24 1978-05-03 Robert Bosch Gmbh, 7000 Stuttgart Ignition device for internal combustion engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565006A2 (en) 1992-04-06 1993-10-13 Fuji Photo Film Co., Ltd. Method for preparing PS plate

Also Published As

Publication number Publication date
DE2329918A1 (en) 1975-01-09
FR2233505A2 (en) 1975-01-10
JPS5048332A (en) 1975-04-30
IT1046848B (en) 1980-07-31
US3924595A (en) 1975-12-09
CH584353A5 (en) 1977-01-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee