EP0211133A1 - Méthode et dispositif pour transférer de l'énergie thermique dans un espace rempli par une matière - Google Patents

Méthode et dispositif pour transférer de l'énergie thermique dans un espace rempli par une matière Download PDF

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Publication number
EP0211133A1
EP0211133A1 EP86102234A EP86102234A EP0211133A1 EP 0211133 A1 EP0211133 A1 EP 0211133A1 EP 86102234 A EP86102234 A EP 86102234A EP 86102234 A EP86102234 A EP 86102234A EP 0211133 A1 EP0211133 A1 EP 0211133A1
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EP
European Patent Office
Prior art keywords
electrode
frequency
energy
plasma
thermal energy
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EP86102234A
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German (de)
English (en)
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EP0211133B1 (fr
Inventor
Bernd Holz
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Priority to AT86102234T priority Critical patent/ATE53894T1/de
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    • 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
    • F02P23/00Other ignition
    • F02P23/04Other physical ignition means, e.g. using laser rays
    • 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
    • F02P3/00Other installations
    • F02P3/01Electric spark ignition installations without subsequent energy storage, i.e. energy supplied by an electrical oscillator

Definitions

  • the invention relates to a method for introducing thermal energy into a space filled with a medium and a device therefor.
  • the invention is based on the object of proposing a method and a device suitable for carrying out the method, with which a very high temperature can be achieved very quickly in the medium of a room, at least to a limited extent locally, by introducing thermal energy.
  • this object is achieved in that a plasma is ignited in the medium itself by means of a high-frequency field and its energy is regulated via the energy and / or frequency of the high-frequency field. It only takes a very short time to ignite a plasma because only the almost massless electrons have to be accelerated. A certain high-frequency power is required for this, which depends on the medium to be ionized. If this high-frequency power is emitted, the plasma is produced, provided that the necessary field strength is reached to cause the plasma to self-ignite.
  • the temperature of the plasma depends on the power supplied and on the frequency of the alternating field. In this way, a desired amount of heat can also be introduced into the medium of the space mentioned, and can be easily reached, and a desired temperature can be achieved.
  • a method for introducing thermal energy into a space filled with a medium is particularly advantageously applicable, e.g. B. to initiate a combustion process in a fuel-powered carpeting machine or an engine.
  • at least to initiate the The combustion process of the fuel or the fuel mixture can be brought to a reactive temperature by means of a high-frequency field of sufficient energy.
  • the plasma state ie the state in which a gas becomes electrically conductive, does not necessarily have to be reached. Insofar as the reaction temperature is reached below this temperature threshold, this can also be regulated easily via the high-frequency field. If necessary, however, the energy of the high-frequency field can of course also be increased to such an extent that the plasma is produced.
  • a temperature level below the plasma temperature can also be reached in a first stage and then the limit to the plasma temperature can be exceeded by appropriate control of the high-frequency field. In this way, the time course of the temperature rise and the energy content can be controlled in any way. A high-frequency excitation ignition is thus achieved (energy light level motion).
  • a method for operating a motor requiring thermal energy is further proposed, a plasma being ignited in a medium used in the motor by means of a high-frequency field and the energy of which is regulated via the energy and / or frequency of the high-frequency field as a function of that into the medium thermal energy to be introduced.
  • this method it is possible, for example, to operate an air motor in which only air under atmospheric pressure is admitted into a cylinder space, which air is then ignited in a very short time Plasma is heated to a very high temperature, so that this air expands more or less quickly depending on the energy introduced and can, for example, drive a piston in front of it.
  • the method according to the invention be designed to ignite an internal combustion engine, in which case the plasma in the combustion chamber of the engine is ignited at the desired ignition point with a temperature and duration necessary for the desired combustion quality.
  • the plasma With the plasma, a selectable large volume of the combustion mixture can be ignited at the same time, so that a very homogeneous combustion is achieved and knocking of the engine is avoided.
  • the lifetime of the plasma can be chosen arbitrarily. Afterburning can even be carried out via the plasma.
  • the previous difficulties with the usual spark plugs are eliminated. It is no longer necessary to pay attention to the correct electrode spacing or the correct heat value of the spark plugs and there is no more spark plug wear.
  • an electrode matched with a directly coupled resonator protrude into the space to be supplied with thermal energy, the electrode and resonator being connected to a high-frequency generator connected by a circuit breaker.
  • the necessary power can be easily radiated via the electrode.
  • the resonator must be coupled directly to the electrode in order to prevent the formation of a plasma in the wrong place.
  • the device according to the invention is used as the ignition device of an internal combustion engine, it is proposed that the electrode protrude into the combustion chamber. This will make the necessary Radiated energy where the plasma to ignite the combustion mixture is to be generated.
  • an electrode be assigned to each combustion chamber, all electrodes and the associated resonators being connected to a common high-frequency generator. This is the simplest design, but it must be accepted that a plasma is generated on each electrode each time the high-frequency generator is switched, so that the cylinders that do not work in the clock sequence are ignited. If this is not desired or is inadmissible because of the design of the engine, it is proposed as a supplement to the invention that a switchable separating device is provided between the resonator and the electrode on the one hand and the high-frequency generator on the other hand, the respective separating device being provided by the control device for the ignition and the firing sequence as well as the circuit breaker for the high frequency generator is switched. In this way it is achieved that only the electrode radiates its energy for generating the plasma, which is assigned to the respective cylinder with a working cycle.
  • An alternative can also consist, according to the invention, in that for each resonator / electrode unit a high-frequency generator is provided with an associated circuit breaker, each circuit breaker being switched by a control pulse from the control device for the ignition and sequence.
  • the method according to the invention it is possible to very quickly transport large amounts of thermal energy into closed rooms.
  • the amount of energy can be regulated in a simple manner.
  • the device required to carry out the method is relatively simple and essentially consists of known components and assemblies.
  • the device according to the invention is particularly well suited as an ignition device for internal combustion engines: when used, it eliminates the difficulties associated with conventional spark plugs and produces an improved exhaust gas.
  • a device Used as an ignition device for an internal combustion engine of a motor vehicle, for example, a voltage converter is supplied with the on-board voltage of the on-board electrical system. The voltage converter supplies the energy for a connected high-frequency generator, which in turn is switched via a circuit breaker. Connected to the high-frequency generator is an electrode which projects into the combustion chamber of the engine like a spark plug, a resonator being placed directly on the electrode. This is necessary because a cable connection at the output of the resonator is not possible, since the field strength is so high at this point that the plasma would arise there. In order to create a plasma, the high-frequency generator is switched on by the circuit breaker, the circuit breaker receiving a control pulse, for. B. from the setup of the machine, which has also given the impetus for the ignition.
  • the voltage converter increases the usually lower on-board voltage to higher values. In the case shown, it is a freely oscillating push-pull converter.
  • this DC voltage is only supplied to the high-frequency generator at the moment of ignition. This is done by a power transistor (circuit breaker in the illustration), which is switched by a control pulse.
  • the control impulse comes from the device already contained in the motor vehicle for the conventional ignition.
  • the high frequency generator works as a power oscillator. It can be constructed in such a way that it increases the power itself by increasing the feedback in the unmatched load case (shortly before the plasma ignites) and thus accelerates the plasma ignition. However, this output voltage obtained from the high-frequency generator is not sufficient to start the ionization.
  • the downstream resonator therefore takes on the task of bringing this voltage to the necessary high level. For this, the resonator must have a high quality. It should be noted here that the size of a resonator becomes smaller as the frequency increases. So if a small resonator is desired, a high frequency must be used.
EP86102234A 1985-07-27 1986-02-20 Méthode et dispositif pour transférer de l'énergie thermique dans un espace rempli par une matière Expired - Lifetime EP0211133B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86102234T ATE53894T1 (de) 1985-07-27 1986-02-20 Verfahren zur einbringung thermischer energie in einen mit einem medium gefuellten raum und einrichtung hierzu.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853527041 DE3527041A1 (de) 1985-07-27 1985-07-27 Verfahren zur einbringung thermischer energie in einen mit einem medium gefuellten raum und einrichtung hierzu
DE3527041 1985-07-27

Publications (2)

Publication Number Publication Date
EP0211133A1 true EP0211133A1 (fr) 1987-02-25
EP0211133B1 EP0211133B1 (fr) 1990-05-02

Family

ID=6277024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86102234A Expired - Lifetime EP0211133B1 (fr) 1985-07-27 1986-02-20 Méthode et dispositif pour transférer de l'énergie thermique dans un espace rempli par une matière

Country Status (3)

Country Link
EP (1) EP0211133B1 (fr)
AT (1) ATE53894T1 (fr)
DE (2) DE3527041A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19644514A1 (de) * 1996-10-25 1998-04-30 Pinkalla Reiner Zündanlage für Brennstoffmotoren
DE10239410A1 (de) * 2002-08-28 2004-03-18 Robert Bosch Gmbh Vorrichtung zum Zünden eines Luft-Kraftstoff-Gemischs in einem Verbrennungsmotor
EP1588048A1 (fr) 2003-01-06 2005-10-26 Paul Douglas Freen Systeme et procede pour la production et l'entretien d'une decharge electrique par effet couronne assurant l'allumage d'un melange combustible gazeux
EP1910669A1 (fr) 2005-08-05 2008-04-16 Siemens Aktiengesellschaft Systeme d'allumage au plasma et procede pour le faire fonctionner
WO2010105784A1 (fr) * 2009-03-16 2010-09-23 Borgwarner Beru Systems Gmbh Procédé et système d'allumage d'un mélange carburant-air d'une chambre de combustion, en particulier dans un moteur à combustion interne, par la production d'une décharge corona
CN102777928A (zh) * 2012-07-30 2012-11-14 咸阳西燃机电设备有限公司 小功率等离子点火电路及装置

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD261289A3 (de) * 1986-11-11 1988-10-26 Freiberg Brennstoffinst Einrichtung zur kombinierten zuendung und ueberwachung von brennern
DD261290A3 (de) * 1986-11-11 1988-10-26 Freiberg Brennstoffinst Kombinierte zuend- und ueberwachungseinrichtung fuer brenner
GB9021444D0 (en) * 1990-10-02 1990-11-14 Delco Electronic Overseas Corp Light mask
DE19723784C1 (de) * 1997-06-06 1998-08-20 Daimler Benz Ag Schaltungsanordnung für die Zündung einer Brennkraftmaschine
DE19747701C2 (de) * 1997-10-29 1999-12-23 Volkswagen Ag Plasmastrahl-Zündung für Verbrennungskraftmaschinen
DE19747700C2 (de) * 1997-10-29 2000-06-29 Volkswagen Ag Zündeinrichtung mit einer Zündelektrode
DE19852652A1 (de) * 1998-11-16 2000-05-18 Bosch Gmbh Robert Zündvorrichtung für Hochfrequenz-Zündung
DE10061673A1 (de) 2000-12-12 2002-06-13 Volkswagen Ag Element und Vorrichtung zur Energieeinkopplung in einen mit einem bestimmten Medium gefüllten Raum
DE10143194B4 (de) * 2001-09-04 2013-02-07 Volkswagen Ag Hochfrequenzzündung für Verbrennungskraftmaschinen
DE10157029A1 (de) 2001-11-21 2003-06-05 Bosch Gmbh Robert Hochfrequenzzündung für eine Brennkraftmaschine
DE10243271A1 (de) * 2002-09-18 2003-12-04 Bosch Gmbh Robert Vorrichtung zum Zünden eines Luft-Kraftstoff-Gemischs in einem Verbrennungsmotor
EP2012004A1 (fr) 2007-07-03 2009-01-07 Delphi Technologies, Inc. Dispositif d'allumage à haute fréquence et son procédé de fonctionnement
EP2238223B1 (fr) 2008-01-28 2015-08-26 Shell Internationale Research Maatschappij B.V. Procédé pour le démarrage d'un réacteur de gazéification du charbon

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2617841A (en) * 1949-01-03 1952-11-11 Rca Corp Internal-combustion engine ignition
US4122816A (en) 1976-04-01 1978-10-31 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Plasma igniter for internal combustion engine
US4138980A (en) 1974-08-12 1979-02-13 Ward Michael A V System for improving combustion in an internal combustion engine
US4297983A (en) * 1978-12-11 1981-11-03 Ward Michael A V Spherical reentrant chamber
EP0055871A1 (fr) 1981-01-07 1982-07-14 Hitachi, Ltd. Système d'allumage pour moteur à combustion interne
US4455989A (en) 1981-06-16 1984-06-26 Nissan Motor Company, Limited Plasma ignition system for internal combustion engine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2611596C2 (de) * 1976-03-19 1985-06-20 Robert Bosch Gmbh, 7000 Stuttgart Verfahren und Vorrichtung zur Erzeugung von Zündfunken bei hohem Zündspannungsbedarf für Zündanlagen von Brennkraftmaschinen
JPS59168270A (ja) * 1983-03-12 1984-09-21 Fuji Heavy Ind Ltd 点火時期制御装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2617841A (en) * 1949-01-03 1952-11-11 Rca Corp Internal-combustion engine ignition
US4138980A (en) 1974-08-12 1979-02-13 Ward Michael A V System for improving combustion in an internal combustion engine
US4122816A (en) 1976-04-01 1978-10-31 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Plasma igniter for internal combustion engine
US4297983A (en) * 1978-12-11 1981-11-03 Ward Michael A V Spherical reentrant chamber
EP0055871A1 (fr) 1981-01-07 1982-07-14 Hitachi, Ltd. Système d'allumage pour moteur à combustion interne
US4455989A (en) 1981-06-16 1984-06-26 Nissan Motor Company, Limited Plasma ignition system for internal combustion engine

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, Band 1, Nr. 25, 3. März 1977, Seite 2112 M 76; & JP-A-51 141 933 (NAOTAKE FUKAYA) 07-12-1976 *
PATENTS ABSTRACTS OF JAPAN, Band 6, Nr. 207 (M-165)[1085], 19. Oktober 1982; & JP-A-57 113 968 (HITACHI SEISAKUSHO K.K.) 15-07-1982 *
PATENTS ABSTRACTS OF JAPAN, Band 7, Nr. 31 (M-192)[1176], 8. Februar 1983; & JP-A-57 186 067 (HITACHI SEISAKUSHO K.K.) 16-11-1982 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19644514A1 (de) * 1996-10-25 1998-04-30 Pinkalla Reiner Zündanlage für Brennstoffmotoren
DE10239410A1 (de) * 2002-08-28 2004-03-18 Robert Bosch Gmbh Vorrichtung zum Zünden eines Luft-Kraftstoff-Gemischs in einem Verbrennungsmotor
DE10239410B4 (de) * 2002-08-28 2004-12-09 Robert Bosch Gmbh Vorrichtung zum Zünden eines Luft-Kraftstoff-Gemischs in einem Verbrennungsmotor
EP1588048A1 (fr) 2003-01-06 2005-10-26 Paul Douglas Freen Systeme et procede pour la production et l'entretien d'une decharge electrique par effet couronne assurant l'allumage d'un melange combustible gazeux
EP2067986A2 (fr) 2003-01-06 2009-06-10 Etatech Inc. Système et procédé de génération et de maintien de décharge électrique corona pour allumer un mélange gazeux combustible
EP1910669A1 (fr) 2005-08-05 2008-04-16 Siemens Aktiengesellschaft Systeme d'allumage au plasma et procede pour le faire fonctionner
WO2010105784A1 (fr) * 2009-03-16 2010-09-23 Borgwarner Beru Systems Gmbh Procédé et système d'allumage d'un mélange carburant-air d'une chambre de combustion, en particulier dans un moteur à combustion interne, par la production d'une décharge corona
CN102777928A (zh) * 2012-07-30 2012-11-14 咸阳西燃机电设备有限公司 小功率等离子点火电路及装置

Also Published As

Publication number Publication date
ATE53894T1 (de) 1990-06-15
EP0211133B1 (fr) 1990-05-02
DE3670887D1 (de) 1990-06-07
DE3527041A1 (de) 1987-02-05

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