GB1477683A - Ignition systems for internal combustion engines - Google Patents

Ignition systems for internal combustion engines

Info

Publication number
GB1477683A
GB1477683A GB3372674A GB3372674A GB1477683A GB 1477683 A GB1477683 A GB 1477683A GB 3372674 A GB3372674 A GB 3372674A GB 3372674 A GB3372674 A GB 3372674A GB 1477683 A GB1477683 A GB 1477683A
Authority
GB
United Kingdom
Prior art keywords
circuit
ignition
primary
switch
ignition circuit
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
GB3372674A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1477683A publication Critical patent/GB1477683A/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
    • F02P3/005—Other installations having inductive-capacitance energy storage
    • 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
    • F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
    • F02P15/008—Reserve ignition systems; Redundancy of some ignition 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
    • F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
    • F02P15/12—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits having means for strengthening spark during starting
    • 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

1477683 Ignition systems ROBERT BOSCH GmbH 31 July 1974 [1 Aug 1973] 33726/74 Heading F1B An ignition system comprises a primary ignition circuit including the ignition coil primary winding 1 and a second ignition circuit including a capacitor 2, both circuits being inductively coupled to the ignition coil secondary winding, and a monitoring circuit 4 adapted to monitor the insulation resistance R of a spark plug 19 to render the second ignition circuit operative in addition, or as shown, as an alternative to the primary ignition circuit when the insulation resistance falls below a predetermined value, e.g. due to soiling of the spark plug. As shown, the primary ignition circuit is controlled by a circuit breaker 21 controlling the base current of a switching transistor 11. The breaker similarly controls a thyristor 14 in the second ignition circuit. A voltage convertor 12 ensures that the capacitor is charged to 500 volts. The monitory circuit is effective automatically to close a switch 40 in the second circuit to render it operative when the insulation resistance falls below the predetermined value. A switch 41 may be provided in the primary ignition circuit to open automatically when switch 40 closes. The bridging switches 51, 52 are closed at engine starting e.g. by being actuated in dependence on actuation of the engine starter switch, to ensure that both circuits are operative at starting.
GB3372674A 1973-08-01 1974-07-31 Ignition systems for internal combustion engines Expired GB1477683A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732338905 DE2338905A1 (en) 1973-08-01 1973-08-01 IGNITION SYSTEM FOR OPERATING COMBUSTION MACHINERY

Publications (1)

Publication Number Publication Date
GB1477683A true GB1477683A (en) 1977-06-22

Family

ID=5888534

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3372674A Expired GB1477683A (en) 1973-08-01 1974-07-31 Ignition systems for internal combustion engines

Country Status (5)

Country Link
JP (1) JPS5044340A (en)
DE (1) DE2338905A1 (en)
FR (1) FR2241997A5 (en)
GB (1) GB1477683A (en)
IT (1) IT1017723B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453985A1 (en) * 1978-12-12 1980-11-07 Siak Hoo Ong IGNITION COIL OF INTERNAL COMBUSTION ENGINE AND ELECTRONIC IGNITION DEVICE COMPRISING THE SAME

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53123731A (en) * 1977-04-06 1978-10-28 Ngk Spark Plug Co Ltd Ignition system
DE3137997A1 (en) * 1981-09-24 1983-03-31 Patscheider, Heinz Eckart, 5600 Wuppertal Ignition device for internal combustion engines
JP2014196674A (en) * 2013-03-29 2014-10-16 本田技研工業株式会社 Ignition device for internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453985A1 (en) * 1978-12-12 1980-11-07 Siak Hoo Ong IGNITION COIL OF INTERNAL COMBUSTION ENGINE AND ELECTRONIC IGNITION DEVICE COMPRISING THE SAME

Also Published As

Publication number Publication date
JPS5044340A (en) 1975-04-21
FR2241997A5 (en) 1975-03-21
IT1017723B (en) 1977-08-10
DE2338905A1 (en) 1975-02-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee