GB1452122A - Electrical circuit arrangements for igniting gaseous fuels - Google Patents

Electrical circuit arrangements for igniting gaseous fuels

Info

Publication number
GB1452122A
GB1452122A GB4720773A GB4720773A GB1452122A GB 1452122 A GB1452122 A GB 1452122A GB 4720773 A GB4720773 A GB 4720773A GB 4720773 A GB4720773 A GB 4720773A GB 1452122 A GB1452122 A GB 1452122A
Authority
GB
United Kingdom
Prior art keywords
high voltage
spark gap
generating
direct current
spark
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
GB4720773A
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.)
British Gas Corp
Original Assignee
British Gas Corp
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 British Gas Corp filed Critical British Gas Corp
Priority to GB4720773A priority Critical patent/GB1452122A/en
Publication of GB1452122A publication Critical patent/GB1452122A/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
    • 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)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Generation Of Surge Voltage And Current (AREA)

Abstract

1452122 Ignition circuits BRITISH GAS CORP 1 Oct 1974 [10 Oct 1973] 47207/73 Heading F1B An electric spark ignition circuit arrangement for igniting combustible gaseous fuels includes a two electrode spark gap 8, means 24, 56, for generating a high voltage and means 3, 7 for generating a low voltage the components over which the high voltage and the low voltage outputs are developed being connected in series with the spark gap 8 and the arrangement being such that in use of the circuit arrangement following breakdown of the spark gap by the high voltage generator, the low voltage generator maintains an arc across the spark gap. The high voltage generating means is arranged to generate alternating current and the low voltage generating means is arranged to generate direct current or direct current combined with alternating current of frequency much lower than the frequency of the current generated by the high voltage generating means, the means for generating the high voltage alternating current being adapted to permit the ready flow of direct current through its output impedance C, D and including a single step up transformer 6 whose secondary winding C, D provides the output impedance. The means for generating direct current or quasi direct current is adapted to permit the ready flow of alternating current through its output impedance by the use of frequency-selective components. In a modification (not shown), an additional spark gap is located in the lead connecting the spark gap 8 to the high voltage terminal C and a capacitor is connected in parallel with this additional gap. In another modification there are three ignition spark gaps and in a further modification there are four ignition spark gaps. The invention is described as applied to gas burners but is stated to be applicable to internal combustion engines. The device 4 may be an inert gas filled spark gap or a thyristor switch actuated by a neon-tube voltage sensitive circuit.
GB4720773A 1973-10-10 1973-10-10 Electrical circuit arrangements for igniting gaseous fuels Expired GB1452122A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4720773A GB1452122A (en) 1973-10-10 1973-10-10 Electrical circuit arrangements for igniting gaseous fuels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4720773A GB1452122A (en) 1973-10-10 1973-10-10 Electrical circuit arrangements for igniting gaseous fuels

Publications (1)

Publication Number Publication Date
GB1452122A true GB1452122A (en) 1976-10-13

Family

ID=10444142

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4720773A Expired GB1452122A (en) 1973-10-10 1973-10-10 Electrical circuit arrangements for igniting gaseous fuels

Country Status (1)

Country Link
GB (1) GB1452122A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2326195A (en) * 1997-06-12 1998-12-16 Smiths Industries Plc A capacitor discharge ignition circuit
US6052002A (en) * 1997-06-12 2000-04-18 Smiths Industries Public Limited Company Ignition systems having a series connection of a switch/inductor and a capacitor
WO2010015757A1 (en) * 2008-08-05 2010-02-11 Renault S.A.S. Monitoring of the excitation frequency of a radiofrequency spark plug

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2326195A (en) * 1997-06-12 1998-12-16 Smiths Industries Plc A capacitor discharge ignition circuit
US6052002A (en) * 1997-06-12 2000-04-18 Smiths Industries Public Limited Company Ignition systems having a series connection of a switch/inductor and a capacitor
GB2326195B (en) * 1997-06-12 2001-01-10 Smiths Industries Plc Ignition systems and methods
WO2010015757A1 (en) * 2008-08-05 2010-02-11 Renault S.A.S. Monitoring of the excitation frequency of a radiofrequency spark plug
FR2934942A1 (en) * 2008-08-05 2010-02-12 Renault Sas CONTROL OF THE FREQUENCY OF EXCITATION OF A RADIOFREQUENCY CANDLE.
CN102171442B (en) * 2008-08-05 2013-03-06 雷诺股份公司 Monitoring of the excitation frequency of a radiofrequency spark plug

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee