GB1411716A - Ignition systems - Google Patents

Ignition systems

Info

Publication number
GB1411716A
GB1411716A GB419173A GB419173A GB1411716A GB 1411716 A GB1411716 A GB 1411716A GB 419173 A GB419173 A GB 419173A GB 419173 A GB419173 A GB 419173A GB 1411716 A GB1411716 A GB 1411716A
Authority
GB
United Kingdom
Prior art keywords
pulse
capacitor
switch
series
generator
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
GB419173A
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.)
Brunswick Corp
Original Assignee
Brunswick 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 Brunswick Corp filed Critical Brunswick Corp
Publication of GB1411716A publication Critical patent/GB1411716A/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
    • F02P11/00—Safety means for electric spark ignition, not otherwise provided for
    • F02P11/02—Preventing damage to engines or engine-driven gearing
    • 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

1411716 Ignition systems BRUNSWICK CORP 26 Jan 1973 [4 Feb 1972] 4191/73 Heading F1B To ensure operation in the forward direction only, e.g. of a two stroke I.C. engine for outboard motors, utilizing a capacitor discharge ignition system of the breakerless type, the system includes two series-arranged SCR switches 8,20 triggered by pulses from first and second pulse generators 16, 17 and arranged so that only when the engine rotates in the forward direction will the pulse from the generator 17 render switch 20 conducting to allow the subsequent pulse from generator 16 to actuate switch 8 and allow the capacitor 3 to discharge through the primary coil 9 at the usual pulse transformer 5 to fire selectively the sparking plugs 2. Attempted reverse rotation of the engine will produce a pulse from the pulse generator 16 before SCR switch 20 is conducting, and hence this will block the pulse, preventing discharge of the capacitor. As shown, the pulse generators are formed, as an alternator 12 including an enginedriven rotor 13 carrying a pair of permanent magnets 14, and a pair of windings 16, 17 close coupled by separate cores 18. 19 to the magnets. The direction sensing winding 17 is connected in series with a blocking diode 25, and both are in series with a holding capacitor 27. A clamping diode 24 limits the maximum voltage applied across the gate-cathode circuit of the SCR switch 8, and transient protection capacitors 22, 23 are provided on opposite sides of a gate resistor 21.
GB419173A 1972-02-04 1973-01-26 Ignition systems Expired GB1411716A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22364072A 1972-02-04 1972-02-04

Publications (1)

Publication Number Publication Date
GB1411716A true GB1411716A (en) 1975-10-29

Family

ID=22837402

Family Applications (1)

Application Number Title Priority Date Filing Date
GB419173A Expired GB1411716A (en) 1972-02-04 1973-01-26 Ignition systems

Country Status (7)

Country Link
US (1) US3739759A (en)
AU (1) AU473040B2 (en)
BE (1) BE794575A (en)
CA (1) CA968841A (en)
FR (1) FR2170678A5 (en)
GB (1) GB1411716A (en)
SE (1) SE390193B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3903862A (en) * 1972-06-29 1975-09-09 Nippon Denso Co Capacitor discharge type contactless ignition system for internal combustion engines
DE2238871C2 (en) * 1972-08-07 1982-12-23 Robert Bosch Gmbh, 7000 Stuttgart Ignition system for internal combustion engines
US4086894A (en) * 1976-07-06 1978-05-02 Motorola, Inc. Rotary direction sensor for engine ignition control
US4111174A (en) * 1977-01-04 1978-09-05 Brunswick Corporation Ignition system with idle speed governor apparatus
USRE30928E (en) * 1977-06-23 1982-05-11 Caterpillar Tractor Co. Engine control
US4080940A (en) * 1977-06-23 1978-03-28 Caterpillar Tractor Co. Engine control
JPS5985483A (en) * 1982-11-04 1984-05-17 Otsupama Kogyo Kk Noncontact igniter for internal-combustion engine
JPH0311421Y2 (en) * 1985-05-10 1991-03-19
US4827891A (en) * 1986-08-23 1989-05-09 Honda Giken Kogyo Kabushiki Kaisha Ignition apparatus for preventing unnecessary charging in an internal combustion engine
CA2012027C (en) * 1990-03-13 1996-04-23 Albert D'amours Reverse rotation engine
US6748937B2 (en) * 2001-10-26 2004-06-15 Lawrence E. Soza Hall effect ignition system
EP2042727A1 (en) * 2007-09-27 2009-04-01 Prüfrex-Elektro-Apparatebau Ignition system for combustion engines

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280810A (en) * 1963-09-11 1966-10-25 Gen Motors Corp Semiconductor ignition system
US3667441A (en) * 1969-05-16 1972-06-06 Outboard Marine Corp Capacitor discharge ignition system with automatic spark advance
US3599615A (en) * 1969-05-29 1971-08-17 Motorola Inc Spark advance mechanism for solid state ignition systems
FR2052681A5 (en) * 1969-07-16 1971-04-09 Bosch

Also Published As

Publication number Publication date
FR2170678A5 (en) 1973-09-14
BE794575A (en) 1973-05-16
AU473040B2 (en) 1976-06-10
US3739759A (en) 1973-06-19
CA968841A (en) 1975-06-03
SE390193B (en) 1976-12-06
AU5140273A (en) 1974-07-25

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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