GB1410173A - Electric pulse generating apparatus - Google Patents

Electric pulse generating apparatus

Info

Publication number
GB1410173A
GB1410173A GB5825871A GB5825871A GB1410173A GB 1410173 A GB1410173 A GB 1410173A GB 5825871 A GB5825871 A GB 5825871A GB 5825871 A GB5825871 A GB 5825871A GB 1410173 A GB1410173 A GB 1410173A
Authority
GB
United Kingdom
Prior art keywords
coil
core
transistor
ignition
direct current
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
GB5825871A
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.)
MOBELEC INTERNATIONAL Ltd
Original Assignee
MOBELEC INTERNATIONAL 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 MOBELEC INTERNATIONAL Ltd filed Critical MOBELEC INTERNATIONAL Ltd
Priority to GB5825871A priority Critical patent/GB1410173A/en
Priority to US315432A priority patent/US3889650A/en
Publication of GB1410173A publication Critical patent/GB1410173A/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
    • F02P7/067—Electromagnetic pick-up devices, e.g. providing induced current in a coil
    • F02P7/0675—Electromagnetic pick-up devices, e.g. providing induced current in a coil with variable reluctance, e.g. depending on the shape of a tooth

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

1410173 Ignition systems MOBELEC INTERNATIONAL Ltd 13 Dec 1972 [15 Dec 1971 8 June 1972] 58258/71 and 26783/72 Heading F1B [Also in Division H3] An ignition circuit for an internal combustion engine or a timer for an engine having a fuel injection system comprises a laminated U-shaped magnetic core 10, Fig. 1, which is magnetized by direct current through a coil 11 and is mounted in proximity to a timing cam, Fig. 3 (not shown), of magnetizable material, each cam peak when in close proximity of the core causing magnetic saturation and a change of voltage across the coil. The core and coil assembly may replace the contact set in the distributer of an internal combustion engine. Coil voltage changes due to core saturation are converted into pulses for an ignition coil by the circuit shown in Fig. 4, the direct current through the coil 11 being applied from a D.C. supply Vi through a filter Rl, Cl and regulated by the combination of a transistor TR1 and a Zener diode Z 1. Such voltage changes are applied from terminal A to a stabilized transistor TR2 through a filter R5, R6, C3, C4, C5 and a capacitor C6, and then through monostable transistor stages TR3, TR4 and an output transistor TR5 to an output terminal B. A modified core structure, Fig. 5 (not shown), has a coil on each core limb, the two coils being either connected in series so as to minimize the effect of stray external magnetic field, or be so connected to the associated circuit that one coil is excited by direct current and the other acts as a transformer winding for induced pulses. The arrangement may be applied to a capacitor discharge ignition system.
GB5825871A 1971-12-15 1971-12-15 Electric pulse generating apparatus Expired GB1410173A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5825871A GB1410173A (en) 1971-12-15 1971-12-15 Electric pulse generating apparatus
US315432A US3889650A (en) 1971-12-15 1972-12-15 Electric pulse generating apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5825871A GB1410173A (en) 1971-12-15 1971-12-15 Electric pulse generating apparatus
GB2678372 1972-06-08

Publications (1)

Publication Number Publication Date
GB1410173A true GB1410173A (en) 1975-10-15

Family

ID=26258423

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5825871A Expired GB1410173A (en) 1971-12-15 1971-12-15 Electric pulse generating apparatus

Country Status (2)

Country Link
US (1) US3889650A (en)
GB (1) GB1410173A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4119075A (en) * 1976-08-09 1978-10-10 W. R. Grace & Co. Distributor spring for use in a magnetic sensor

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3020897A (en) * 1959-11-18 1962-02-13 Sony Corp Ignition system for an internal combustion engine
US3253185A (en) * 1960-12-05 1966-05-24 Bendix Corp Transistor ignition system and pulse generator therefor
US3087001A (en) * 1961-03-13 1963-04-23 Gen Motors Corp Breakerless ignition system
US3219878A (en) * 1962-04-05 1965-11-23 Gen Motors Corp Ignition system with magnetic pulse generating means
US3200803A (en) * 1962-08-06 1965-08-17 Gen Motors Corp Transistor ignition system
US3277875A (en) * 1962-11-07 1966-10-11 Mitsubishi Electric Corp Spark advance device for internal combustion engine
US3203412A (en) * 1963-01-07 1965-08-31 Motorola Inc Ignition system
US3291108A (en) * 1964-01-08 1966-12-13 Holley Carburetor Co Transistor ignition
US3328614A (en) * 1964-08-24 1967-06-27 Gen Motors Corp Breakerless ignition control unit
US3370190A (en) * 1965-09-09 1968-02-20 Motorola Inc Electromagnetic pickup device
US3390669A (en) * 1966-04-13 1968-07-02 Motorola Inc Electronic ignition system
DE1539172B1 (en) * 1966-08-27 1972-03-09 Bosch Gmbh Robert SIGNAL GENERATOR FOR AN ELECTRONIC IGNITION SYSTEM
US3550572A (en) * 1968-12-04 1970-12-29 Ralph P Walker Solid state ignition system
CH502519A (en) * 1969-05-21 1971-01-31 Toni Graeser Auto Elektro Werk Electronic ignition device on an internal combustion engine
US3554179A (en) * 1969-06-19 1971-01-12 Phelon Co Inc Antireverse trigger for an ignition system

Also Published As

Publication number Publication date
US3889650A (en) 1975-06-17

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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