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GB1326413A - Breakerless ignition system - Google Patents

Breakerless ignition system

Info

Publication number
GB1326413A
GB1326413A GB5290670A GB5290670A GB1326413A GB 1326413 A GB1326413 A GB 1326413A GB 5290670 A GB5290670 A GB 5290670A GB 5290670 A GB5290670 A GB 5290670A GB 1326413 A GB1326413 A GB 1326413A
Authority
GB
United Kingdom
Prior art keywords
stage transistor
transistor
voltage
base
stage
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
GB5290670A
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.)
Mallory Electric Corp
Original Assignee
Mallory Electric 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 Mallory Electric Corp filed Critical Mallory Electric Corp
Publication of GB1326413A publication Critical patent/GB1326413A/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
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
    • F02P7/073—Optical pick-up devices
    • 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
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F02P3/04—Layout of circuits
    • F02P3/0407—Opening or closing the primary coil circuit with electronic switching means
    • F02P3/0435—Opening or closing the primary coil circuit with electronic switching means 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

1326413 Ignition systems MALLORY ELECTRIC CORP 6 Nov 1970 [6 Nov 1969] 52906/70 Heading FIB A breakerless ignition system for an internalcombustion engine comprises a multi-stage transistor amplifier circuit, the collector-emitter circuits of the transistors being in parallel across a D.C. power source 10. Means inter-connects the base of each transistor after the first stage transistor, to the collector emitter circuit of the preceding stage transistor whereby conduction of a transistor at one stage will place the base of the succeeding stage transistor at substantially earth potential to prevent conduction thereof. The number of stages is even whereby the final stage transistor 30 and the first stage transistor 24 conduct alternately. The system further comprises a step up transformer 98 having a primary winding 96 and a secondary winding 100, the primary winding being in the collector emitter circuit of the final stage transistor, a voltage dividing network connected to the power source and the base of the first transistor stage, the voltage available to the base via the network being insufficient to bias the first stage transistor to conduct, a photo-cell 48 between the voltage dividing network and the base of the first transistor, a light source 20, and means (not shown) to repetitively impinge light from the light source on to the photo-cell in timed relation to engine operation to energize the photocell whereby the photo-cell will develop a voltage which is added to the voltage of the voltage dividing network to bias the first stage transistor to conduct. Conduction of the first stage transistor 24 results in cut off of the final stage transistor 30 and collapse of the magnetic field in the primary winding 96 to induce a voltage in the secondary winding 100 sufficient to fire a spark plug 102 of an internal combustion engine. Components of the circuit illustrated in Fig.2 are mounted within the housing of the distributor 106. A centrifugal advance mechanism is provided and this is also included together with a cup-shaped shutter wheel in the distributor housing.
GB5290670A 1969-11-06 1970-11-06 Breakerless ignition system Expired GB1326413A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87450969A 1969-11-06 1969-11-06

Publications (1)

Publication Number Publication Date
GB1326413A true GB1326413A (en) 1973-08-15

Family

ID=25363955

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5290670A Expired GB1326413A (en) 1969-11-06 1970-11-06 Breakerless ignition system

Country Status (4)

Country Link
US (1) US3646926A (en)
JP (1) JPS5025977B1 (en)
DE (1) DE2054344A1 (en)
GB (1) GB1326413A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272253A (en) * 1992-09-08 1994-05-11 Josef Petr Prokopius Engine ignition distributor

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810448A (en) * 1969-11-06 1974-05-14 Lumenition Ltd Fuel injection systems for internal combustion engines
US3710131A (en) * 1971-01-08 1973-01-09 Lumenition Ltd Transistorized ignition systems
USRE31709E (en) * 1972-01-18 1984-10-23 Lumenition Limited Ignition systems for internal combustion engines
GB1410782A (en) * 1972-01-18 1975-10-22 Lumenition Ltd Ingition systems and fuel injection system for internal combustion engines
US3807378A (en) * 1972-03-23 1974-04-30 W Wernet Ignition system
GB1388058A (en) * 1972-06-22 1975-03-19 Bowen D D Ignition systems for internal combustion engines
US3831570A (en) * 1972-12-20 1974-08-27 Ford Motor Co Breakerless ignition system
US3882357A (en) * 1974-02-27 1975-05-06 Du Pont Battery operated electroluminescent film identification device
US4269152A (en) * 1978-05-22 1981-05-26 The Bendix Corporation Breakerless pulse distribution system and opto-electrical distributor therefor
DE3206915A1 (en) * 1982-02-26 1983-09-15 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Photoamplifier
DE3229202C2 (en) * 1982-08-05 1995-04-27 Bosch Gmbh Robert Ignition device for internal combustion engines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324351A (en) * 1964-02-19 1967-06-06 Jr Henry D Pahl Unit impulse ignition systems
GB1106923A (en) * 1965-03-10 1968-03-20 Lucas Industries Ltd Spark ignition systems
US3291110A (en) * 1965-09-02 1966-12-13 Jasper N Cunningham High voltage circuit for automobile engine ignition
US3390668A (en) * 1966-04-13 1968-07-02 Motorola Inc Electronic ignition system
US3422804A (en) * 1966-05-09 1969-01-21 William C J Van Mastright Ignition system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272253A (en) * 1992-09-08 1994-05-11 Josef Petr Prokopius Engine ignition distributor
GB2272253B (en) * 1992-09-08 1996-07-10 Josef Petr Prokopius Compact distributor with electronic retard function

Also Published As

Publication number Publication date
US3646926A (en) 1972-03-07
JPS5025977B1 (en) 1975-08-28
DE2054344A1 (en) 1971-05-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PLNP Patent lapsed through nonpayment of renewal fees