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GB1283905A - Improvements in or relating to capacitive discharge ignition circuits - Google Patents

Improvements in or relating to capacitive discharge ignition circuits

Info

Publication number
GB1283905A
GB1283905A GB4697070A GB4697070A GB1283905A GB 1283905 A GB1283905 A GB 1283905A GB 4697070 A GB4697070 A GB 4697070A GB 4697070 A GB4697070 A GB 4697070A GB 1283905 A GB1283905 A GB 1283905A
Authority
GB
United Kingdom
Prior art keywords
capacitor
energy
cycle
voltage
oct
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
GB4697070A
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.)
Fiat SpA
Original Assignee
Fiat SpA
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 Fiat SpA filed Critical Fiat SpA
Publication of GB1283905A publication Critical patent/GB1283905A/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

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

1283905 Ignition systems FIAT SpA 2 Oct 1970 [7 Oct 1969] 46970/70 Heading F1B In an ignition system a capacitor C is cyclically charged from a direct current source via a conversion circuit 1 and discharged into a high voltage coil B by means of a controlled rectifier SCR. The conversion circuit 1 includes a blocked oscillator comprising a transformer Tr with a saturable magnetic core which during each cycle of operation stores a given quantity of magnetic energy which is independent of the supply voltage and transfers this energy on saturation to the capacitor so that the charging voltage is constant and independent of the voltage of the direct current source. The blocked oscillator is adapted to trigger the controlled rectifier, during that part of the cycle when magnetic energy is accumulating in the saturable magnetic core, in order to discharge the energy stored in the capacitor in the previous cycle. The system is controlled by a contact breaker R which may be a mechanical or electronic contact braker.
GB4697070A 1969-10-07 1970-10-02 Improvements in or relating to capacitive discharge ignition circuits Expired GB1283905A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT873148 1969-10-07

Publications (1)

Publication Number Publication Date
GB1283905A true GB1283905A (en) 1972-08-02

Family

ID=11127227

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4697070A Expired GB1283905A (en) 1969-10-07 1970-10-02 Improvements in or relating to capacitive discharge ignition circuits

Country Status (1)

Country Link
GB (1) GB1283905A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5561350A (en) 1988-11-15 1996-10-01 Unison Industries Ignition System for a turbine engine
US5754011A (en) 1995-07-14 1998-05-19 Unison Industries Limited Partnership Method and apparatus for controllably generating sparks in an ignition system or the like
US6670777B1 (en) 2002-06-28 2003-12-30 Woodward Governor Company Ignition system and method
US7355300B2 (en) 2004-06-15 2008-04-08 Woodward Governor Company Solid state turbine engine ignition exciter having elevated temperature operational capability

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5561350A (en) 1988-11-15 1996-10-01 Unison Industries Ignition System for a turbine engine
US5754011A (en) 1995-07-14 1998-05-19 Unison Industries Limited Partnership Method and apparatus for controllably generating sparks in an ignition system or the like
US6034483A (en) 1995-07-14 2000-03-07 Unison Industries, Inc. Method for generating and controlling spark plume characteristics
US6353293B1 (en) 1995-07-14 2002-03-05 Unison Industries Method and apparatus for controllably generating sparks in an ignition system or the like
US7095181B2 (en) 1995-07-14 2006-08-22 Unsion Industries Method and apparatus for controllably generating sparks in an ignition system or the like
US6670777B1 (en) 2002-06-28 2003-12-30 Woodward Governor Company Ignition system and method
US7355300B2 (en) 2004-06-15 2008-04-08 Woodward Governor Company Solid state turbine engine ignition exciter having elevated temperature operational capability

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees