GB1437770A - Optoelectronic transistorized ingition systems for internal combustion engines - Google Patents

Optoelectronic transistorized ingition systems for internal combustion engines

Info

Publication number
GB1437770A
GB1437770A GB2430774A GB2430774A GB1437770A GB 1437770 A GB1437770 A GB 1437770A GB 2430774 A GB2430774 A GB 2430774A GB 2430774 A GB2430774 A GB 2430774A GB 1437770 A GB1437770 A GB 1437770A
Authority
GB
United Kingdom
Prior art keywords
transistor
voltage
transistorized
systems
ingition
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
GB2430774A
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.)
Lumenition Ltd
Original Assignee
Lumenition 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 Lumenition Ltd filed Critical Lumenition Ltd
Priority to GB2430774A priority Critical patent/GB1437770A/en
Publication of GB1437770A publication Critical patent/GB1437770A/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)
  • Bipolar Integrated Circuits (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

1437770 Ignition systems LUMENITION Ltd 31 May 1974 24307/74 Heading F1B A transistorized ignition system disclosed in Specification 1330453, in which the voltage across the emitter-base junction of every transistor TR1, TR2 and TR3 is clamped by diodes D1, D2 and D3 connected thereacross to prevent the reverse voltage across the junctions from exceeding the transistor breakdown value. The power stage P consists of a Darlington pair TR4, TR5 or a single transistor, and is protected by a diode D5 and a Zener diode Z2 connected in parallel with a capacitor C1 across the base of transistor TR4 and the collector of TR5. The voltage supply to a gallium arsenide lamp GA, a photo-transistor PH and the transistors TR1, TR2 is obtained across a Zener diode Z1 which stabilizes the voltage at 7.5 volts, and is connected in series with a resistor R1 across the battery voltage at 12 volts. Two, three or four transistors may be provided in the trigger circuit.
GB2430774A 1974-05-31 1974-05-31 Optoelectronic transistorized ingition systems for internal combustion engines Expired GB1437770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2430774A GB1437770A (en) 1974-05-31 1974-05-31 Optoelectronic transistorized ingition systems for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2430774A GB1437770A (en) 1974-05-31 1974-05-31 Optoelectronic transistorized ingition systems for internal combustion engines

Publications (1)

Publication Number Publication Date
GB1437770A true GB1437770A (en) 1976-06-03

Family

ID=10209632

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2430774A Expired GB1437770A (en) 1974-05-31 1974-05-31 Optoelectronic transistorized ingition systems for internal combustion engines

Country Status (1)

Country Link
GB (1) GB1437770A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2372326A2 (en) * 1976-11-26 1978-06-23 Lumenition Ltd
DE2821085A1 (en) * 1978-05-13 1979-11-15 Bosch Gmbh Robert Ignition system for IC engine - has Zener diodes in circuit parallel to transistor, preventing overvoltages on both sides of ignition coil
DE2820497A1 (en) * 1978-05-11 1979-11-22 Bosch Gmbh Robert Transistorised ignition system for IC engine - has control circuit to prevent unwanted spark when ignition switch is opened
US20160000494A1 (en) * 2014-07-02 2016-01-07 I.C. Medical, Inc. System and apparatus for automatic activation using radio frequency sensor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2372326A2 (en) * 1976-11-26 1978-06-23 Lumenition Ltd
DE2820497A1 (en) * 1978-05-11 1979-11-22 Bosch Gmbh Robert Transistorised ignition system for IC engine - has control circuit to prevent unwanted spark when ignition switch is opened
DE2821085A1 (en) * 1978-05-13 1979-11-15 Bosch Gmbh Robert Ignition system for IC engine - has Zener diodes in circuit parallel to transistor, preventing overvoltages on both sides of ignition coil
US20160000494A1 (en) * 2014-07-02 2016-01-07 I.C. Medical, Inc. System and apparatus for automatic activation using radio frequency sensor
US10390875B2 (en) * 2014-07-02 2019-08-27 I.C. Medical, Inc. System and apparatus for automatic activation using radio frequency sensor
US11564730B2 (en) 2014-07-02 2023-01-31 I.C. Medical, Inc. System and apparatus for automatic activation using radio frequency sensor

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee