EP0131905A3 - Contactless magnet ignition system - Google Patents

Contactless magnet ignition system Download PDF

Info

Publication number
EP0131905A3
EP0131905A3 EP84108142A EP84108142A EP0131905A3 EP 0131905 A3 EP0131905 A3 EP 0131905A3 EP 84108142 A EP84108142 A EP 84108142A EP 84108142 A EP84108142 A EP 84108142A EP 0131905 A3 EP0131905 A3 EP 0131905A3
Authority
EP
European Patent Office
Prior art keywords
winding
core
ignition system
control winding
primary
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.)
Withdrawn
Application number
EP84108142A
Other languages
German (de)
French (fr)
Other versions
EP0131905A2 (en
Inventor
Paolo Marino
Vincenzo Piombini
Paolo Sevini
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.)
Ducati Elettrotecnica SpA
Original Assignee
Ducati Elettrotecnica SpA
Ducati Energia 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 Ducati Elettrotecnica SpA, Ducati Energia SpA filed Critical Ducati Elettrotecnica SpA
Publication of EP0131905A2 publication Critical patent/EP0131905A2/en
Publication of EP0131905A3 publication Critical patent/EP0131905A3/en
Withdrawn legal-status Critical Current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
    • F02P1/00—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage
    • F02P1/02—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage the generator rotor being characterised by forming part of the engine flywheel
    • 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
    • F02P1/00—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage
    • F02P1/08—Layout of circuits
    • F02P1/083—Layout of circuits for generating sparks by opening or closing a coil circuit

Abstract

A contactless magnet ignition system comprises a first core (6) of U-shaped cross-sectional configuration carrying an ignition coil (10, 11) on its central portion (7). A second core (9) carrying a control winding (23) is disposed outside of the primary winding perpendicular to the main axis of the first core (6) and spaced therefrom within the space defined betw­ een the legs (8) thereof. A permanent magnet rotor compo­ nent (3 to 5) is adapted to induce respective voltages at the terminals of the primary winding (10) and the control winding (23).
A transistor (19) is controlled by the control winding (23) for interrupting the current flowing through the primary wind­ ing (10) so asto induce in the secondary winding (11) a voltage adapted to cause a spark to be generated across a spark plug (12).
EP84108142A 1983-07-15 1984-07-11 Contactless magnet ignition system Withdrawn EP0131905A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT45719/83A IT1195596B (en) 1983-07-15 1983-07-15 MAGNETIC IGNITION SYSTEM WITHOUT CONTACTS
IT4571983 1983-07-15

Publications (2)

Publication Number Publication Date
EP0131905A2 EP0131905A2 (en) 1985-01-23
EP0131905A3 true EP0131905A3 (en) 1986-02-26

Family

ID=11257654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84108142A Withdrawn EP0131905A3 (en) 1983-07-15 1984-07-11 Contactless magnet ignition system

Country Status (3)

Country Link
EP (1) EP0131905A3 (en)
ES (1) ES8504341A1 (en)
IT (1) IT1195596B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1234371B (en) * 1989-07-25 1992-05-15 Idm Srl INDUCTIVE DISCHARGE IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINES.
DE4341963C2 (en) * 1993-12-09 1999-09-23 Stihl Maschf Andreas Magnetic ignition system
CA2175510C (en) * 1995-05-02 2005-02-01 Masao Iwata Magneto electric generator rotor and an implement for removing this rotor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090488A (en) * 1972-12-30 1978-05-23 Iida Denki Kogyo K.K. Ignition circuit for the internal combustion engine and premature ignition prevention method in the ignition device
GB1602329A (en) * 1977-04-25 1981-11-11 Mcculloch Corp Breakerless magneto device
US4336785A (en) * 1980-04-28 1982-06-29 Eltra Corporation Magneto ignition with field-responsive biasing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090488A (en) * 1972-12-30 1978-05-23 Iida Denki Kogyo K.K. Ignition circuit for the internal combustion engine and premature ignition prevention method in the ignition device
GB1602329A (en) * 1977-04-25 1981-11-11 Mcculloch Corp Breakerless magneto device
US4336785A (en) * 1980-04-28 1982-06-29 Eltra Corporation Magneto ignition with field-responsive biasing

Also Published As

Publication number Publication date
ES533388A0 (en) 1985-04-01
EP0131905A2 (en) 1985-01-23
IT8345719A1 (en) 1985-01-15
ES8504341A1 (en) 1985-04-01
IT1195596B (en) 1988-10-19
IT8345719A0 (en) 1983-07-15

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

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RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DUCATI ELETTROTECNICA SPA

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DUCATI ENERGIA S.P.A.

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19861027

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SEVINI, PAOLO

Inventor name: PIOMBINI, VINCENZO

Inventor name: MARINO, PAOLO