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WO1992000453A1 - Generateur avec systeme d'alimentation en puissance pour allumage electronique - Google Patents

Generateur avec systeme d'alimentation en puissance pour allumage electronique Download PDF

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Publication number
WO1992000453A1
WO1992000453A1 PCT/IT1991/000015 IT9100015W WO9200453A1 WO 1992000453 A1 WO1992000453 A1 WO 1992000453A1 IT 9100015 W IT9100015 W IT 9100015W WO 9200453 A1 WO9200453 A1 WO 9200453A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
command
supply
coils
power
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.)
Ceased
Application number
PCT/IT1991/000015
Other languages
English (en)
Inventor
Gianni Regazzi
Astorre Biondi
Lorenzo Fiorini
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 Energia SpA
Original Assignee
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 Energia SpA filed Critical Ducati Energia SpA
Publication of WO1992000453A1 publication Critical patent/WO1992000453A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F02P1/08—Layout of circuits
    • F02P1/086—Layout of circuits for generating sparks by discharging a capacitor into a coil circuit
    • 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
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
    • 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
    • F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
    • F02P15/10—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits having continuous electric sparks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/48—Generators with two or more outputs

Definitions

  • the present invention concerns a magneto-permanent fly-wheel rotary generator with power-supply system for the electronic ignition in internal combustion engines particularly two-stroke engines cycle "OTTO" of small size and preferably motorcycles, mopeds and similar engines, not excluded the small engines and portable engine-tools.
  • OTO two-stroke engines cycle
  • the present solution allows to use an electronic ignition preferably with capacitive discharge that uses the power-supply coil also as command of the electronic ignition circuit with multipolar fly-generators, being the number of poles preferably 6 or more, generating a sole spark for revolution or only if wished, more sparks per revolution, in dependence of the magnetization of the rotor eliminating so the presence of the phase captor and of expensive artifices for the limitation of the power supplied which are for example the spires of short circuit.
  • the invention consists as claimed in a generator for internal combustion engines to command and power-supply the ignition circuit, of the type with stellar internal stator having statoric coils (bobbins) in respective radial axis (breeds/rays) for electric energy generation by means of induction and a rotor endowed with permanent magnetic poles that influence magnetically the aforementioned coils -bobbins, in which at least one of said coils-bobbins has the function of power-supply and/or command of an electronic ignition circuit, characterized in that said rotor presents at least two rotor magnetic poles between them adjacent, magnetized with the same polarity (N-N or S- S) or presents a greater rotor extension magnetic pole if compared to the others, to influence in different way said coil/s-bobbin/s for power-supply and/or command of the ignition (2) if compared to the other coils-bobbins (3) .
  • Figs. 1a, 1b, 1c and 1d disclose 12 poles fly-wheel generator, with one spark per revolution command to the electronic ignition by means of a statoric coil-bobbin extension core that short-circuit magnetically two rotor magnetic poles between them adjacent.
  • Figs. 2a, 2b, 2c and 2d represent the operation principle of a fly-wheel generator as from the Figures 1....
  • statoric coil-bobbin extension cores able to give the supply and/or the command of the ignition, are extended to cover each-one only one rotor magnetic pole operating in this case on the coil systems of the respective spires of the statoric magnetic adjacent coil-bobbin extension cores to obtain the identical functional effect of the single statoric coil-bobbin extension core which form, position and geometric size is such to short-circuit two rotor magnetic poles between them adjacent.
  • Figures 4,6 represent alternative solutions to the solutions of Figures 1...
  • Figure 5 shows a particular rotor magnetization that allows to obtain two sparks for revolution.
  • Figure 3 represents a schematic behavior diagram of the tension (voltage) to the ends of the supply bobbin and/or electronic ignition command according to invention and with rotor magnetization according to Figure 1.
  • Figure 7 and 8 represent electric operation utilizing ignition schemas according to this invention.
  • statoric coil-bobbin core extension which bobbin gives the power-supply and/or the command of the ignition is of shape, position and geometric size (1) such to short-circuit magnetically two rotor magnetic poles and the rotor magnetization presents three poles between them adjacent with the same magnetic polarity.
  • Figs. 1a, 1b, 1c, 1d we note that, because the particular form of the statoric coil-bobbin core extension which bobbin gives the powe- supply and/or the command of the ignition, only when the rotor passes from the position that invests the South North poles (Fig.1a N-S) to the position that invests the poles North-North (Fig.lb N-N), a potential difference to the ends of the supply bobbin is generated, while when the rotor passes from a position that invests the poles North-North (Fig.lc N-N) to the position that invests the poles South-North (Fig.ld S-N) we have equally the generation of a potential difference to the ends of the supply bobbin but of opposite polarity.
  • the electric power supplied to the ignition system is limited in that it is supplied with only one capacitor charge impulse in correspondence of the ignition function and we do not need to short-circuit spires or other artifices to limit the charge of the capacitor of the ignition system with all the benefits that derive, both of thermic view point and of constructive simplicity.
  • the present solution can furthermore be used in coupling with one phase captor (pick-up) in this case the fly-wheel rotary generator gives to the ignition circuit exclusively the charge of the capacitor and not the command of the ignition that in the specific exceptional case, is supplied by the relative phase captor (Pic-Up).
  • Figures 7 and 8 disclose two circuital solutions, fundamentally identical with the sole difference that in Figure 8 is used an inductive-capacitor bobbin with controlled impedance that involves conductive metallic sheets insulated with dielectric sheets/layers to form inductance (Lp) as primary coil and contemporary capacitor (C1).
  • Lp inductance
  • C1 primary coil and contemporary capacitor
  • the diode D3 is polarized inversely while the diodes D1 , D2, D4 are polarized directly so the electric current flows from the power-supply bobbin across D1 , C1 , D4, D2 loading C1 with a certain potential.
  • the diodes D1 ,D2,D4 are polarized inversely while D3 is polarized directly and the current flows across R3, C2, R1 , D3 and in small part also across R2, provided that the potential of the power-supply bobbin overcomes the potential of C2 that have been previously loaded.
  • SCR Silicon Controlled Rectifier
  • the priming of the SCR allows the discharge of the capacity C1 on the primary coil Lp with the consequent transferring of energy to the secondary coil Ls where a high potential is inducted such to prime a spark on the ignition plug Ca which current can close across the diode D2 while the current of the primary coil Lp closes on the diode D4 or D4, D5 in the case we utilize the said inductane-capacitor bobbin with controlled impedance referenced in Figure 8.
  • the circuital configuration composed by R2, C2, R1 , D3 is to realize a peak detector and is this particular solution that allows to manage the path of the ignition phase intervening on the resistive values R1 , R2 or on the value of the capacity C2.

Landscapes

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

Abstract

Générateur pour moteurs à combustion interne, servant à commander et alimenter en puissance un circuit d'allumage, du type à stator stellaire intérieur (T) possédant des bobines de stator situées sur des axes respectifs radiaux (2, 3) pour produire de l'énergie électrique par induction et un rotor possédant des pôles magnétiques permanents (R) influençant magnétiquement les bobines (2, 3), dans lequel au moins l'une desdites bobines (2) possède une fonction d'alimentation en puissance et/ou de commande d'un circuit d'allumage électronique. Le générateur se caractérise par le fait que ledit rotor (R) possède au moins deux pôles magnétiques contigüs, magnétisés par la même polarité (N-N ou S-S) ou possède une extension de pôle magnétique supérieure aux autres, pour influencer différemment lesdites bobines servant à l'alimentation en puissance et/ou à la commande (2) si on les compare avec les autres bobine (3).
PCT/IT1991/000015 1990-06-28 1991-03-05 Generateur avec systeme d'alimentation en puissance pour allumage electronique Ceased WO1992000453A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT83417A/90 1990-06-28
IT08341790A IT1245634B (it) 1990-06-28 1990-06-28 Generatore con sistema di alimentazione per l'accensione elettronica nei motori a combustione interna

Publications (1)

Publication Number Publication Date
WO1992000453A1 true WO1992000453A1 (fr) 1992-01-09

Family

ID=11321584

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1991/000015 Ceased WO1992000453A1 (fr) 1990-06-28 1991-03-05 Generateur avec systeme d'alimentation en puissance pour allumage electronique

Country Status (3)

Country Link
AU (1) AU7449791A (fr)
IT (1) IT1245634B (fr)
WO (1) WO1992000453A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003084036A1 (fr) * 2002-03-28 2003-10-09 International Business Machines Corporation Generateur d'impulsions electriques utilisant la repartition des poles pseudo-aleatoire
WO2009116902A1 (fr) * 2008-03-17 2009-09-24 Husqvarna Ab Unité de distribution de carburant
US20110215592A1 (en) * 2010-03-04 2011-09-08 Applied Materials, Inc. Flywheel energy storage device with a hubless ring-shaped rotor

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3358665A (en) * 1965-10-23 1967-12-19 Syncro Corp Ignition system
US3495579A (en) * 1967-06-12 1970-02-17 Espanola Magnetos Fab Electronic ignition system with lighting
US4170206A (en) * 1976-08-27 1979-10-09 Kokusan Denki Co., Ltd. Ignition system for an internal combustion engine
JPS60128972A (ja) * 1983-12-16 1985-07-10 Nippon Denso Co Ltd 内燃機関無接点点火装置用多極磁石発電機
US4636671A (en) * 1983-12-23 1987-01-13 Nippondenso Co., Ltd. Magneto generator for internal combustion engine
US4779454A (en) * 1987-11-12 1988-10-25 Brunswick Corp. Crankshaft angle sensing system
US4892079A (en) * 1987-06-17 1990-01-09 Mitsubishi Denki Kabushiki Kaisha Magnetogenerator
JPH06176053A (ja) * 1992-12-07 1994-06-24 Hitachi Ltd デ−タ処理装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3358665A (en) * 1965-10-23 1967-12-19 Syncro Corp Ignition system
US3495579A (en) * 1967-06-12 1970-02-17 Espanola Magnetos Fab Electronic ignition system with lighting
US4170206A (en) * 1976-08-27 1979-10-09 Kokusan Denki Co., Ltd. Ignition system for an internal combustion engine
JPS60128972A (ja) * 1983-12-16 1985-07-10 Nippon Denso Co Ltd 内燃機関無接点点火装置用多極磁石発電機
US4636671A (en) * 1983-12-23 1987-01-13 Nippondenso Co., Ltd. Magneto generator for internal combustion engine
US4892079A (en) * 1987-06-17 1990-01-09 Mitsubishi Denki Kabushiki Kaisha Magnetogenerator
US4779454A (en) * 1987-11-12 1988-10-25 Brunswick Corp. Crankshaft angle sensing system
JPH06176053A (ja) * 1992-12-07 1994-06-24 Hitachi Ltd デ−タ処理装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan, volume 10, no. 248 (E-431)(2304), 26 August 1986; & JP-A-6176053 (NIPPON DENSO CO, LTD:), 18 April 1986 *
Patent Abstracts of Japan, volume 9, no. 290 (M-430)(2013), 16 November 1985; & JP-A-60128972 (NIPPON DENSO CO., LTD), 10 July 1985 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003084036A1 (fr) * 2002-03-28 2003-10-09 International Business Machines Corporation Generateur d'impulsions electriques utilisant la repartition des poles pseudo-aleatoire
US6720698B2 (en) 2002-03-28 2004-04-13 International Business Machines Corporation Electrical pulse generator using pseudo-random pole distribution
WO2009116902A1 (fr) * 2008-03-17 2009-09-24 Husqvarna Ab Unité de distribution de carburant
US8950381B2 (en) 2008-03-17 2015-02-10 Husqvarna Ab Fuel supply unit
US20110215592A1 (en) * 2010-03-04 2011-09-08 Applied Materials, Inc. Flywheel energy storage device with a hubless ring-shaped rotor
US8664815B2 (en) * 2010-03-04 2014-03-04 Applied Materials, Inc. Flywheel energy storage device with a hubless ring-shaped rotor

Also Published As

Publication number Publication date
IT9083417A0 (it) 1990-06-28
IT1245634B (it) 1994-09-29
AU7449791A (en) 1992-01-23
IT9083417A1 (it) 1991-12-28

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