GB1347975A - Speed limitting systems for internal combustion engines - Google Patents

Speed limitting systems for internal combustion engines

Info

Publication number
GB1347975A
GB1347975A GB3128770A GB1347975DA GB1347975A GB 1347975 A GB1347975 A GB 1347975A GB 3128770 A GB3128770 A GB 3128770A GB 1347975D A GB1347975D A GB 1347975DA GB 1347975 A GB1347975 A GB 1347975A
Authority
GB
United Kingdom
Prior art keywords
contact breaker
thyristor
transistor
gate current
systems
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
GB3128770A
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of GB1347975A publication Critical patent/GB1347975A/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
    • F02P9/005—Control of spark intensity, intensifying, lengthening, suppression by weakening or suppression of sparks to limit the engine speed

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

1347975 Ignition systems; speed limiting JOSEPH LUCAS (INDUSTRIES) Ltd 16 June 1971 [27 June 1970] 31287/70 Heading F1B A speed limiting system for an I.C. engine with an ignition coil having primary and secondary windings 54, 57 and a contact breaker 55 comprises a transistor 64 which is turned on when contact breaker 55 opens and a thyristor 89 to which gate current starts to flow a predetermined interval after transistor 64 is turned on. The gate current flows for a predetermined period and the transistor 64 is held on until said gate current starts. The thyristor 89 prevents a further spark if the contact breaker opens while the thyristor is gated, and the predetermined interval is such that the engine is not capable of overspeeding sufficiently to open the contact breaker again during it. The intervals are determined by the times taken for capacitors 72, 77 and 83 to charge, determined by the values of resistors 75, 81 and 86 respectively. These resistors may be variable.
GB3128770A 1970-06-27 1970-06-27 Speed limitting systems for internal combustion engines Expired GB1347975A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3128770 1970-06-27

Publications (1)

Publication Number Publication Date
GB1347975A true GB1347975A (en) 1974-02-27

Family

ID=10320889

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3128770A Expired GB1347975A (en) 1970-06-27 1970-06-27 Speed limitting systems for internal combustion engines

Country Status (6)

Country Link
US (1) US3776204A (en)
JP (1) JPS5429656B1 (en)
DE (1) DE2131064C2 (en)
FR (1) FR2099793A5 (en)
GB (1) GB1347975A (en)
SE (1) SE381710B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT953567B (en) * 1972-03-28 1973-08-10 Magneti Marelli Spa Fab ELECTRONIC EQUIPMENT FOR THE CONTROL OF OPERATING CIRCUITS AS A FUNCTION OF THE ROTATION SPEED OF A ROTATING ORGAN OF A MACHINE
US3871347A (en) * 1972-11-20 1975-03-18 Motorola Inc Constant dwell ignition system
GB1465670A (en) * 1973-03-22 1977-02-23 Lucas Electrical Ltd Speed limiting systems for wankel engines
FR2231293A5 (en) * 1973-05-22 1974-12-20 Ducellier & Cie
US3967604A (en) * 1973-06-14 1976-07-06 Kokusan Denki Co., Ltd. Device for preventing an internal combustion engine from revolving at more than the predetermined speed
DE2405382C2 (en) * 1974-02-05 1982-09-23 Robert Bosch Gmbh, 7000 Stuttgart Device for limiting the speed of internal combustion engines
DE2443403C2 (en) * 1974-09-11 1986-02-20 Robert Bosch Gmbh, 7000 Stuttgart Circuit arrangement for suppressing individual ignition processes in an ignition system for internal combustion engines
GB1536204A (en) * 1976-03-05 1978-12-20 Lumenition Ltd Devices for limiting the speed of revolution of an internal combustion engine having spark ignition
US4211195A (en) * 1977-10-12 1980-07-08 Colt Industries Operating Corp. Overspeed ignition system
JPS591114Y2 (en) * 1979-01-19 1984-01-12 国産電機株式会社 Ignition system for internal combustion engines
DE2941963A1 (en) * 1979-10-17 1981-04-30 Robert Bosch Gmbh, 7000 Stuttgart CIRCUIT ARRANGEMENT TO LIMIT THE SPEED OF A MOTOR
JPS582471A (en) * 1981-06-29 1983-01-08 Yamaha Motor Co Ltd Overheat preventer for internal-combustion engine
US6116212A (en) * 1999-06-03 2000-09-12 Briggs & Stratton Corporation Engine speed limiter
US6595897B1 (en) 2002-03-01 2003-07-22 Briggs & Stratton Corporation Combination speed limiter and transmission interlock system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3153746A (en) * 1961-07-03 1964-10-20 Duane E Atkinson Internal combustion engine overspeed control
DE1228850B (en) * 1961-07-03 1966-11-17 Duane Edward Atkinson Device for monitoring overspeed of an internal combustion engine
GB1111716A (en) * 1964-12-02 1968-05-01 Lucas Industries Ltd Spark ignition circuits
FR1453705A (en) * 1965-11-15 1966-06-03 Lucas Industries Ltd Electric ignition system
FR1562923A (en) * 1968-01-15 1969-04-11
US3581720A (en) * 1968-11-22 1971-06-01 Silicon Systems Inc Electronic engine r.p.m. limiting device
US3665903A (en) * 1969-02-03 1972-05-30 Lucas Industries Ltd Speed limiting systems for internal combustion engines
US3563219A (en) * 1969-07-23 1971-02-16 Ford Motor Co Maximum engine speed limiter
US3601103A (en) * 1969-10-13 1971-08-24 Ladell Ray Swiden Engine-condition-responsive cutoff apparatus

Also Published As

Publication number Publication date
DE2131064A1 (en) 1972-01-05
FR2099793A5 (en) 1972-03-17
US3776204A (en) 1973-12-04
SE381710B (en) 1975-12-15
JPS5429656B1 (en) 1979-09-25
DE2131064C2 (en) 1983-06-23

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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