GB1239210A - - Google Patents

Info

Publication number
GB1239210A
GB1239210A GB5483567A GB1239210DA GB1239210A GB 1239210 A GB1239210 A GB 1239210A GB 5483567 A GB5483567 A GB 5483567A GB 1239210D A GB1239210D A GB 1239210DA GB 1239210 A GB1239210 A GB 1239210A
Authority
GB
United Kingdom
Prior art keywords
oscillator
spark
engine
driven
produced
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
GB5483567A
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 filed Critical
Publication of GB1239210A publication Critical patent/GB1239210A/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
    • F02P3/01—Electric spark ignition installations without subsequent energy storage, i.e. energy supplied by an electrical oscillator

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

1,239,210. Ignition systems. JOSEPH LUCAS (INDUSTRIES) Ltd. Nov.18, 1968 [Dec.1 1967], No.54835/67. Heading F1B. An ignition system comprises an oscillator VT1, a spark producing circuit 13, 14, VT4 which on receiving an input from the oscillator produces a spark at a plug 22 of the engine, means coupling the oscillator to the spark producing circuit and means (not shown) driven by the engine for controlling the oscillator to determine the instants at which sparks are produced. The oscillator is provided with both positive and negative feedback L2, L1 so that when no spark is required the oscillator does not oscillate. The means driven by the engine serves to increase the positive feedback when a spark is required and so cause the oscillator to oscillate. Each spark is produced when the switching device VT4 is turned off and a monostable circuit driven by the output from the oscillator serves when in its unstable state to turn the switching device off. The oscillator used starts suddenly when the coupling between the coils L2 and L3 is increased. The spark is produced substantially instantaneously when the ferrite rod (not shown) passed over the core of the coils.
GB5483567A 1967-12-01 1967-12-01 Expired GB1239210A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5483567 1967-12-01

Publications (1)

Publication Number Publication Date
GB1239210A true GB1239210A (en) 1971-07-14

Family

ID=10472215

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5483567A Expired GB1239210A (en) 1967-12-01 1967-12-01

Country Status (7)

Country Link
US (1) US3550571A (en)
JP (1) JPS5013900B1 (en)
DE (1) DE1811625C3 (en)
ES (1) ES361262A1 (en)
FR (1) FR1593471A (en)
GB (1) GB1239210A (en)
SU (1) SU459897A3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH534303A (en) * 1970-06-05 1973-02-28 Magneti Marelli Spa Electronic diode control device controlled in a capacitive discharge electronic ignition circuit
US3995608A (en) * 1974-06-18 1976-12-07 Hitachi, Ltd. Ignition timing control system for internal combustion engine
US4126112A (en) * 1976-02-27 1978-11-21 Eltra Corporation Breakerless electronic ignition system
DE2700676C2 (en) * 1977-01-08 1985-06-27 Robert Bosch Gmbh, 7000 Stuttgart Ignition system for internal combustion engines
JPS5851070U (en) * 1981-10-01 1983-04-06 三菱電機株式会社 internal combustion engine ignition system
CN1006171B (en) * 1986-11-26 1989-12-20 航空工业部成都飞机公司 Continuously sparking electronic ignitor

Also Published As

Publication number Publication date
FR1593471A (en) 1970-05-25
ES361262A1 (en) 1970-09-16
DE1811625C3 (en) 1975-05-15
US3550571A (en) 1970-12-29
DE1811625B2 (en) 1974-10-03
DE1811625A1 (en) 1969-10-16
JPS5013900B1 (en) 1975-05-23
SU459897A3 (en) 1975-02-05

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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