EP0560775A1 - Electronic oscilator equipment for internal combustion engines - Google Patents

Electronic oscilator equipment for internal combustion engines Download PDF

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Publication number
EP0560775A1
EP0560775A1 EP19910917127 EP91917127A EP0560775A1 EP 0560775 A1 EP0560775 A1 EP 0560775A1 EP 19910917127 EP19910917127 EP 19910917127 EP 91917127 A EP91917127 A EP 91917127A EP 0560775 A1 EP0560775 A1 EP 0560775A1
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EP
European Patent Office
Prior art keywords
oscilator
electronic
equipment
internal combustion
combustion engines
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Withdrawn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
EP19910917127
Other languages
German (de)
French (fr)
Inventor
German Ripoll Moran
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.)
CIMACAR SL
Original Assignee
CIMACAR SL
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 CIMACAR SL filed Critical CIMACAR SL
Publication of EP0560775A1 publication Critical patent/EP0560775A1/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P15/00Electric 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
    • F02P15/10Electric 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00Engines characterised by fuel-air mixture compression
    • F02B1/02Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Definitions

  • This present invention refers to an electronic oscilator equipment for the ignition of petrol engines which has been specially conceived to increase the yield of the engine with lower consumption and a very considerable reduction of the toxic gases which emanate from an imperfect combustion.
  • an ignition is produced in petrol engines by the flying of a spark by means of a sparking plug placed in the inside of the explosion chamber.
  • the solutions known to date consist of a high tension coil, whose primary is feeded by the continuous current of the battery (12 v).
  • This said circuit is cut or interrupted by the action of contacts named contact points, assembled in the inside of a mechamism known as DELCO, which are subjected to approximately a 4 A. intensity.
  • This cut of current is produced in synchronization with the critical moment of maximum compression of each cylinder, so that an over tension is produced (extra break current), which when induced in the secondary winding of the coil, produces a HIGH TENSION current, through which a distributer (pipe and cover of the delco), is conducted to the sparking plugs producing the inflammation of the mixture compressed in the chamber of each cylinder, at the moment of the corresponding cycle.
  • the inflammation of the compressed mixture is instantaneously produced in a 20,8% of its totality, initiating a flame front which propagates to the inside of the cylinder chamber, creating hydrocarbide rich, gas turbulences, which do not reach inflammation point in its totality prior to the opening of the escape valve, escaping to the outside by an escape tube.
  • the first electronic ignition including a power transistor to effectuate the breakage of the coil, is born, and it is sent in its base by the classical contact points, though with a great reduction in the intensity with which they have to cope with.
  • the oscilator electronic circuit proposed by the invention solves in great part, the present problems of atmospheric contamination, energy saving (fuel) and is based on the creation of various fronts of consecutive flames, which in one same period of time (piston stroke), inflames the the compressed mixture NINE TIMES , since nine continuous sparks are produced in each sparking plug, accompanying the piston in its working stroke in 3/4 of its run and inflamming up to 63,2% of the accumulated mixture, versus 28,8 % which is inflammed with one single discharge or spark of the rest of the ignitions.
  • the centres, components, shapes, size and disposition of the elements shall be susceptible to variation, on condition that does not suppose an alteration in the essenciality of the invention.

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

Abstract

The disclosed equipment is provided to reduce contaminating gases and to make better use of the consumed energy, and is comprised of an oscilator and power circuit consisting of two transistors and a time constant maintaining the ignition coil in conditions of producing nine sparks in each cylinder during the piston stroke during its working phase. The power transistor T2 conducts when the transistor T1 biases through the breaker, fig.3 is closed or the T3 is conducting, upon interrupting the circuit to the ground, and an inverse wave is produced which biases T1, and the cycle is repeated.

Description

    Scope of the invention
  • This present invention refers to an electronic oscilator equipment for the ignition of petrol engines which has been specially conceived to increase the yield of the engine with lower consumption and a very considerable reduction of the toxic gases which emanate from an imperfect combustion.
  • Background of the Invention
  • As known, an ignition is produced in petrol engines by the flying of a spark by means of a sparking plug placed in the inside of the explosion chamber.
  • In this sense, the solutions known to date consist of a high tension coil, whose primary is feeded by the continuous current of the battery (12 v). This said circuit is cut or interrupted by the action of contacts named contact points, assembled in the inside of a mechamism known as DELCO, which are subjected to approximately a 4 A. intensity. This cut of current is produced in synchronization with the critical moment of maximum compression of each cylinder, so that an over tension is produced (extra break current), which when induced in the secondary winding of the coil, produces a HIGH TENSION current, through which a distributer (pipe and cover of the delco), is conducted to the sparking plugs producing the inflammation of the mixture compressed in the chamber of each cylinder, at the moment of the corresponding cycle.
  • With this type of ignition, the inflammation of the compressed mixture is instantaneously produced in a 20,8% of its totality, initiating a flame front which propagates to the inside of the cylinder chamber, creating hydrocarbide rich, gas turbulences, which do not reach inflammation point in its totality prior to the opening of the escape valve, escaping to the outside by an escape tube.
  • With the purpose of partially mitigating these disadvantages, high tension coils have come out in the Market, with greater primary consumption (7 A.) and greater secondary tension. The spark produced is harder, with the creation of the flame front being more intense and increasing by 1% the burnt gases. Since the consumption which the contact points have to bear in the breaker is greater, they deteriorate rapidly.
  • In order to overcome this disadvantage, the first electronic ignition, including a power transistor to effectuate the breakage of the coil, is born, and it is sent in its base by the classical contact points, though with a great reduction in the intensity with which they have to cope with.
  • At present, various engine manufacturers replace the breaker of contact points by inductors or coils placed in the inside of the delco (as many as there are cylinder), which, being in the presence of a rotational magnet, generate an impulse which commands the base of a power transistor, boverning the primary of the coil.
  • In all of the previously indicatd cases, in the inside of the cylinder chamber, only one spark continues to fly.
  • Description of the invention
  • The oscilator electronic circuit proposed by the invention, solves in great part, the present problems of atmospheric contamination, energy saving (fuel) and is based on the creation of various fronts of consecutive flames, which in one same period of time (piston stroke), inflames the the compressed mixture NINE TIMES, since nine continuous sparks are produced in each sparking plug, accompanying the piston in its working stroke in 3/4 of its run and inflamming up to 63,2% of the accumulated mixture, versus 28,8 % which is inflammed with one single discharge or spark of the rest of the ignitions.
  • At first, and on examination of the previous paragraph, it seems that if a sparking plug with one single spark lasts approximately 20.000 kms., with nine, it would last much less, though after the tests performed, it is observed that the opposite is true, since they last more than 50.000 kms. On analizing the electrodes of a sparking plug, we observe that part of the scales which cover it, is decomposition by oxidization of the actual material of the electrodes, which, when hot by the effect of the previous explosion, come in contact with the hydrocarbide rich, gas turbulences producing a chemical reaction which is transformed in oxide. In the case in question, this phenomenon does not occur, since when the gases enter in contact with the electrode, they find the latter with spark and so, inflame, not permitting the said reaction.
  • It is obvious to point out that to a greater combustion, the services of the engine increase, and that in order to keep the same, an inferior quantity of fuel is required. Likewise, the solid residues are much less (carbon) and gases (carbon monoxide, sulphers, etc.) which come out through the escape, being able to certify that these decrease 50 % in the most unfavourable cases, compared with those detected in any other engine with another kind of ignition.
  • Description of the drawings
  • In order to complete the description carried out, and so as to help to a better understanding of the characteristics of the invention, this present descriptive document a diagram enclosed, which forms an integral part thereof, and which, with an illustrative and non-limitative character, represents the circuit of the present invention.
  • Preferred embodiment of the invention
  • When actuating the contact key we have current in the circuit, on commencement of the engine running and at a specific moment, the closure of the breaker (contact points, figure 3) or (electromagnetic breaker impulse, figure 2), is produced, which causes the direct biasing of the transistor T1, consequently appearing a 12 v.tension in the C colector of this transistor, thus biasing the base B and the emittor E of the transistor T2, which provokes the feeding of the primary winding of the HIGH coil. At the same time, there appears in the collector C of transistor T2, an inverse damping oscillation which transmits through the condensor and the resistance C1 and R1 (time constant) reaching the base B of transistor T1., which it biases, thus initiaing a new cycle, which is repeated a series of foreseen times, in this case, nine, during the time which the contact points remain open or in the case of the electromagnetic breaker, the no-conduction time of the transistor T3., when closing by the action of the cam, the oscillator is blocked, since the transistor T1 is directly biased.
  • It is not considered necessary to make this description more extensive in order that any expert in the art may understand the reach of the invention and of the advantages derived thereof.
  • The materiales, components, shapes, size and disposition of the elements shall be susceptible to variation, on condition that does not suppose an alteration in the essenciality of the invention.
  • The terms used to describe this document shall always be taken in a broad and non-limitative sense.

Claims (4)

  1. Electronic oscilator equipment for internal combustion engines, essentially characterized by consisting of a power transistor which governs the ignition coil.
  2. Electronic oscilator equipment for internal combustion engines according to claim 1, characterized in that for the handling of the power transistor, it includes an oscilator transistor, regulated by a time constant comprising a condensor and a resistance.
  3. Electronic oscilator equipment for internal combustion engines according to the previous claims, characterized in that for the biasing of the oscilator transistor, it takes advantage of an inverse oscilating phenomenon produced by the residual wave of the HIGH coil primary extracurrent.
  4. Electronic oscilator equipment for internal combustion engines, which may operate with the classical breaker (contact points) or with the electromagnetic circuit which at present are included by some engine manufacturers.
EP19910917127 1991-09-23 1991-09-23 Electronic oscilator equipment for internal combustion engines Withdrawn EP0560775A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES1991/000058 WO1993006363A1 (en) 1991-09-23 1991-09-23 Electronic oscilator equipment for internal combustion engines

Publications (1)

Publication Number Publication Date
EP0560775A1 true EP0560775A1 (en) 1993-09-22

Family

ID=8270724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910917127 Withdrawn EP0560775A1 (en) 1991-09-23 1991-09-23 Electronic oscilator equipment for internal combustion engines

Country Status (3)

Country Link
EP (1) EP0560775A1 (en)
BR (1) BR9107203A (en)
WO (1) WO1993006363A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0634573A1 (en) * 1993-07-13 1995-01-18 Jury Alexandrovech Papko Method and system for controlling the spark frequency of a multispark ignition system
FR2746451A1 (en) * 1996-01-31 1997-09-26 Mitsuba Corp Engine ignition control method for two wheeled vehicles
GB2313157A (en) * 1996-05-16 1997-11-19 Hsu Chih Cheng Ignition system with auxiliary pulses, for gasoline i.c. engine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA738566A (en) * 1960-12-05 1966-07-12 C. Loudon Donald Electric surge generator
FR1337608A (en) * 1962-10-15 1963-09-13 Pal Magneton Ignition system for combustion engines using transistor elements and electric ignition advance control
FR1530557A (en) * 1967-05-16 1968-06-28 Lombardini Fab It Motori Spa Transistor device for ignition of internal combustion engines
AT285248B (en) * 1967-05-09 1970-10-27 Bosch Gmbh Robert Ignition device for internal combustion engines
DE2261156C2 (en) * 1972-12-14 1982-08-26 Robert Bosch Gmbh, 7000 Stuttgart Ignition device for internal combustion engines
US3938491A (en) * 1974-04-29 1976-02-17 Terry Industries Switching circuit for ignition system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9306363A1 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0634573A1 (en) * 1993-07-13 1995-01-18 Jury Alexandrovech Papko Method and system for controlling the spark frequency of a multispark ignition system
WO1995002761A1 (en) * 1993-07-13 1995-01-26 Jury Alexandrovech Papko Method and system to control the spark frequency of a multispark ignition system
FR2746451A1 (en) * 1996-01-31 1997-09-26 Mitsuba Corp Engine ignition control method for two wheeled vehicles
GB2313157A (en) * 1996-05-16 1997-11-19 Hsu Chih Cheng Ignition system with auxiliary pulses, for gasoline i.c. engine

Also Published As

Publication number Publication date
BR9107203A (en) 1994-04-26
WO1993006363A1 (en) 1993-04-01

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