ES384160A1 - Ignition circuit for spark plugs of internal-combustion engine - Google Patents

Ignition circuit for spark plugs of internal-combustion engine

Info

Publication number
ES384160A1
ES384160A1 ES384160A ES384160A ES384160A1 ES 384160 A1 ES384160 A1 ES 384160A1 ES 384160 A ES384160 A ES 384160A ES 384160 A ES384160 A ES 384160A ES 384160 A1 ES384160 A1 ES 384160A1
Authority
ES
Spain
Prior art keywords
ignition circuit
secondary winding
transistor
base
switch
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
ES384160A
Other languages
Spanish (es)
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.)
STMicroelectronics SRL
Original Assignee
ATES Componenti Elettronici SpA
SGS ATES Componenti Elettronici SpA
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 ATES Componenti Elettronici SpA, SGS ATES Componenti Elettronici SpA filed Critical ATES Componenti Elettronici SpA
Publication of ES384160A1 publication Critical patent/ES384160A1/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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

Abstract

The ignition circuit of a spark plug of an internal-combustion engine includes a storage condenser in series with a controlled rectifier which is periodically triggered under the control of an engine-driven cam switch by a blocking oscillator comprising a transistor with grounded emitter in series with the primary of a coupling transformer. One secondary winding of that transformer is inserted, together with a pair of diodes, in a charging path for the storage condenser while another secondary winding lies between the emitter of the transistor and its base which is connected through a feedback resistor to the collector thereof and via an R/C network to the gate of the controlled rectifier. During the open phase of the cam-switch cycle, the base is grounded through the last-mentioned secondary winding which is so poled as to intensify a firing pulse capacitively transmitted to the base upon the opening of the switch at the same time the controlled retifier is turned on to discharge the previously charged storage condenser through the ignition circuit, whereupon the transistor cuts off and the condenser is recharged by the reversed transformer voltage.
ES384160A 1970-03-13 1970-09-16 Ignition circuit for spark plugs of internal-combustion engine Expired ES384160A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2191670 1970-03-13

Publications (1)

Publication Number Publication Date
ES384160A1 true ES384160A1 (en) 1973-01-01

Family

ID=11188725

Family Applications (1)

Application Number Title Priority Date Filing Date
ES384160A Expired ES384160A1 (en) 1970-03-13 1970-09-16 Ignition circuit for spark plugs of internal-combustion engine

Country Status (8)

Country Link
US (1) US3721224A (en)
JP (1) JPS4922983B1 (en)
CH (1) CH522823A (en)
DE (1) DE2057520C3 (en)
ES (1) ES384160A1 (en)
FR (1) FR2066000A5 (en)
GB (1) GB1277553A (en)
SU (1) SU399151A3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH571791A5 (en) * 1972-09-25 1976-01-15 Setco La Chaux De Fonds Sa
US3838328A (en) * 1973-03-19 1974-09-24 W Lundy Capacitive discharge ignition system
US4046125A (en) * 1975-10-17 1977-09-06 Mackie Ronald D Capacitive discharge ignition system
FR2394686A1 (en) * 1977-06-17 1979-01-12 Nutek Inc IC engine capacitive discharge ignition system - uses voltage pulses induced in coil by rotating element to control transistor switch in step=up transformer primary
US4345576A (en) * 1979-09-24 1982-08-24 Super Shops, Inc. Multi-spark CD ignition
JP3505448B2 (en) * 1999-09-16 2004-03-08 三菱電機株式会社 Combustion state detection device for internal combustion engine
US20090183705A1 (en) * 2008-01-22 2009-07-23 Coates George J Hot spark injection system for diesel engines to promote complete combustion

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271593A (en) * 1963-12-05 1966-09-06 Vilbiss Alan J De Internal combustion engine ignition system
US3302629A (en) * 1964-09-21 1967-02-07 Motorola Inc Capacitor discharge ignition system with blocking oscillator charging circuit
US3415234A (en) * 1966-06-06 1968-12-10 Wilbur A. Dammann Electronic ignition system
US3487822A (en) * 1967-11-29 1970-01-06 Motorola Inc Capacitor discharge ignition system
US3520288A (en) * 1968-11-08 1970-07-14 Gen Motors Corp Dual spark capacitor discharge ignition system

Also Published As

Publication number Publication date
DE2057520B2 (en) 1978-09-21
GB1277553A (en) 1972-06-14
SU399151A3 (en) 1973-09-27
DE2057520C3 (en) 1979-05-10
JPS4922983B1 (en) 1974-06-12
US3721224A (en) 1973-03-20
DE2057520A1 (en) 1971-09-30
CH522823A (en) 1972-05-15
FR2066000A5 (en) 1971-08-06

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