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EP0044353A1 - Pare-flamme pour appareils de combustion - Google Patents

Pare-flamme pour appareils de combustion Download PDF

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Publication number
EP0044353A1
EP0044353A1 EP80104314A EP80104314A EP0044353A1 EP 0044353 A1 EP0044353 A1 EP 0044353A1 EP 80104314 A EP80104314 A EP 80104314A EP 80104314 A EP80104314 A EP 80104314A EP 0044353 A1 EP0044353 A1 EP 0044353A1
Authority
EP
European Patent Office
Prior art keywords
fuel
combustion chamber
flame retardant
return device
combustion
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Withdrawn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
EP80104314A
Other languages
German (de)
English (en)
Inventor
Franz X. Wittek
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP80104314A priority Critical patent/EP0044353A1/fr
Publication of EP0044353A1 publication Critical patent/EP0044353A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/002—Arrangement of leakage or drain conduits in or from injectors
    • 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
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/08—Safety, indicating, or supervising devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M17/00—Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of preceding main groups F02M1/00 - F02M15/00
    • F02M17/30—Carburettors with fire-protecting devices, e.g. combined with fire-extinguishing apparatus
    • F02M17/32—Carburettors with fire-protecting devices, e.g. combined with fire-extinguishing apparatus automatically closing fuel conduits on outbreak of fire

Definitions

  • the invention relates to a flame retardant device for combustion devices operated with solid, liquid or gaseous fuels, for example internal combustion engines, burners for heating and steam generator devices and the like. With external or internal mixture formation.
  • the mixture of plastic and air necessary for operating the internal combustion engine is generated in a carburetor or nebulizer, which is transferred into the combustion chamber by the suction effect of the engine during the intake stroke via the intake manifold and the inlet valve and is then brought to an explosive combustion by ignition with the inlet valve closed in order to carry out the actual work cycle of such an internal combustion engine.
  • the flow away from the nebulizer to the combustion chamber is kept as short as possible. Due to the short flow path, there is a risk that if the inlet valve does not seal exactly, e.g. due to wear on the valve guide, valve breakage or breakage of the valve spring, the hot gases generated during combustion flow back into the intake manifold and ignite the mixture located there that is to be fed to another combustion chamber. This ignited mixture then reaches the nebulizer with its flame front and ignites the fuel in the reservoir, so that it can lead to a total burnout of a vehicle driven by such an internal combustion engine3 within a short period of time.
  • This flashback protection device advantageously prevents a flame front from spreading to fuel-carrying areas of heating and steam generator devices and, in particular, of internal combustion engines.
  • the installation of such a non-return device can be carried out easily and effortlessly in any heating and steam generator device or in any internal combustion engine.
  • the non-return device can be designed as a high-temperature-resistant non-return valve which can be manufactured in series at low manufacturing costs.
  • the kickback protection device can be used, for example, in a simple manner 1 internal combustion engine with external mixture formation are firmly inserted directly into the opening of the intake pipe of the intake manifold.
  • the non-return device can be flange-like and connected to the flange of the inlet connector by means of a tight screw connection. This makes it possible to provide an inlet connection unit consisting of a plurality of inlet connections with a non-return device.
  • the anti-kickback device can be provided with a passage opening which has a corresponding flow profile, by means of which the liquid or gaseous fuel or fuel or the mixture flowing through is additionally swirled.
  • This additional swirling of e.g. A uniform mixture formation is achieved in the mixture of fuel / air flowing through, which can lead to a substantial increase in thermal efficiency.
  • the fuel which has already been atomized by the injection nozzle is subjected to an additional atomization in the flow profile, which likewise leads to an improvement in the thermal efficiency.
  • a non-return device can be arranged, which prevents flashback of a flame front in the fuel injector.
  • a non-return device can be attached to the nozzle body of the fuel injection valve immediately before the fuel injection nozzle. Due to this direct attachment to the nozzle body, the non-return device and the fuel injection valve form a unit that can be easily and effortlessly assembled or disassembled.
  • the fuel pressure line can be connected via the kickback protection device to a pressure control valve connected to the fuel injection pump.
  • the feed line is closed by the fuel injection pump in the event of a fire in the fuel pressure line. This prevents any risk of further fuel being fed into the source of the fire.
  • a power or fuel storage container belonging to a combustion device can be provided at the connection points of the supply and discharge lines with a pressure or temperature-sensitive non-return device which, in the event of a fault, makes the interior of the container gas-tight from the supply and discharge lines closes.
  • This non-return device can be equipped in a temperature-responsive element, for example a bimetal, which changes to the closed position at a correspondingly preset temperature.
  • the non-return device can be equipped with a pressure sensor which changes to the closed position when the non-return pressure is high.
  • FIG. 1 shows a signal coming from a nebulizer 22 suction pipe 12 in which the mixture via the inlet port 11 into the combustion chamber 13 of a multi-cylinder internal-combustion engine ER V is converted with external mixture formation.
  • Each inlet connection 11 is provided with a non-return device 10.
  • This non-return device 10 is positively or non-positively attached in each inlet port 11.
  • the mixture coming from the nebulizer 22 is then introduced into the combustion chamber 13 via the respective non-return devices 10 during the intake stroke.
  • Escaping hot gases which pass as a result of a leaky seat of the inlet valve from the individual combustion chambers 13 into the inlet nozzle 11 are then prevented by the anti-return devices 10 used in each inlet nozzle 11 from entering the intake manifold 12 or the nebulizer 22.
  • FIG. 2 shows a further embodiment corresponding to FIG. 1.
  • a non-return device 10 is attached directly in front of the branch area of the individual inlet connections 11.
  • the anti-kickback device 10 is flange-shaped and connected to a flange 18 of the inlet connection unit 23 by means of a gas-tight screw connection.
  • a combination can ent speaking of Figures 1 and 2 are made.
  • FIG. 3 shows a section of an internal combustion engine with external mixture formation, in which the fuel is introduced into the inlet port 11 of the intake manifold 12 by means of a fuel injection valve 15.
  • a non-return device 10 arranged between the injection nozzle 16 of the fuel injection valve 15 and the inlet valve 14 also prevents, as already described, the hot gases from passing from the combustion chamber 13 into the mixture-leading region of the inlet port 11.
  • the non-return device 10 can be located directly in front of the Fuel injector 16 may be arranged.
  • FIG. 4 shows a section of an internal combustion engine with internal mixture formation, in which the combustion air reaches the combustion chamber 13 via the inlet valve 14. The air subsequently compressed in the combustion chamber 13 is then enriched with fuel by means of a fuel injection valve 15 and brought to self-ignition.
  • a non-return device 10 is arranged between the fuel injection nozzle 16 and the combustion chamber 13.
  • Another non-return device 10 is arranged between the leak oil drain 20 of the fuel injection valve 15 and the leak oil drain line 21, as can be seen from FIG. 4, in order to prevent the flame from spreading into the leak oil in the event of a fire occurring in the leak oil drain line 21 -To prevent drain 20 of the fuel injector 15.
  • FIG. 5 shows a steam generator boiler or a boiler for steam or hot water heating systems 17.
  • the fuel is fed from a fuel tank 24 to the fuel pump 26 via the feed line 25.
  • a fuel line 27 is led from the fuel pump 26 to the exhaust pipe or flue gas pipe 28 of the boiler 17.
  • the fuel which is still in liquid form up to the safety valve 29, is brought after the safety valve 29 into a heat-conducting connection with the exhaust pipe 28 of the boiler 17.
  • the focal Converted material in the gaseous state and fed via the fuel return line 27 to the fuel injection valve or burner nozzle 15, which is not the subject of the present invention.
  • a non-return device 10 is located between the burner nozzle 15 and the combustion chamber 13 of the boiler 17 arranged, which, as already described, prevents flashback of a flame into the burner nozzle 15.
  • the kickback protection device 10 can also be used in a correspondingly described manner in gas turbines or jet engines between the burner nozzle and the combustion chamber.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP80104314A 1980-07-23 1980-07-23 Pare-flamme pour appareils de combustion Withdrawn EP0044353A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP80104314A EP0044353A1 (fr) 1980-07-23 1980-07-23 Pare-flamme pour appareils de combustion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80104314A EP0044353A1 (fr) 1980-07-23 1980-07-23 Pare-flamme pour appareils de combustion

Publications (1)

Publication Number Publication Date
EP0044353A1 true EP0044353A1 (fr) 1982-01-27

Family

ID=8186727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104314A Withdrawn EP0044353A1 (fr) 1980-07-23 1980-07-23 Pare-flamme pour appareils de combustion

Country Status (1)

Country Link
EP (1) EP0044353A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134179A (en) * 1983-02-02 1984-08-08 Alfa Romeo Auto Spa Intake system of an i.c. engine having a plurality of intake valves per cylinder
US5375565A (en) * 1993-12-16 1994-12-27 Caterpillar Inc. Flame arrestor and method of manufacture
DE4432350A1 (de) * 1994-09-12 1996-03-14 Bayerische Motoren Werke Ag Gemischverdichtende Brennkraftmaschine mit einer bei Saugrohr-Rückzündungen wirksamen Steuervorrichtung zur Unterbrechung einer Maschinenbetriebseinrichtung, insbesondere Kraftstoffzufuhr
WO1999014470A1 (fr) 1997-09-15 1999-03-25 Timothy Stone Ameliorations apportees a des moteurs a combustion
FR2905141A1 (fr) * 2006-08-24 2008-02-29 Peugeot Citroen Automobiles Sa Systeme d'admission de gaz dans un moteur a combustion interne, notamment du type diesel
EP2711532A1 (fr) * 2012-09-20 2014-03-26 MWM GmbH Moteur à combustion interne avec dispositif anti-retour de flamme

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE343752A (fr) *
DE284451C (fr) *
US1456527A (en) * 1922-03-22 1923-05-29 Willis B Young Attachment for internal-combustion motors
US1944418A (en) * 1931-12-14 1934-01-23 Feuillee Henri Device for protecting internal combustion engines against back firing
US1953443A (en) * 1932-04-18 1934-04-03 Spagliardi Riccardo Nonreturn valve adapted to avoid back-firing in internal combustion engines
US1996861A (en) * 1929-10-28 1935-04-09 Dores Gaston Device for preventing back-firing, capable of being used as theft-preventing devicesfor any applications
DE636528C (de) * 1936-10-10 I G Farbenindustrie Akt Ges Mischduese aus hochhitzebestaendigem, gut waermeleitendem Metall fuer autogene Schweiss- oder Schneidbrenner
DE2419295A1 (de) * 1973-04-23 1974-11-07 Nissan Motor Ansaugsystem fuer einen verbrennungsmotor
FR2354109A1 (fr) * 1976-06-11 1978-01-06 Gestion Courtage Assurances Systeme de prevention de la propagation des incendies d'appareils alimentes en combustibles liquides
DE2733372B1 (de) * 1977-07-23 1978-06-08 Messer Griesheim Gmbh Autogener Schweiss- und/oder Schneidbrenner

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE343752A (fr) *
DE284451C (fr) *
DE636528C (de) * 1936-10-10 I G Farbenindustrie Akt Ges Mischduese aus hochhitzebestaendigem, gut waermeleitendem Metall fuer autogene Schweiss- oder Schneidbrenner
US1456527A (en) * 1922-03-22 1923-05-29 Willis B Young Attachment for internal-combustion motors
US1996861A (en) * 1929-10-28 1935-04-09 Dores Gaston Device for preventing back-firing, capable of being used as theft-preventing devicesfor any applications
US1944418A (en) * 1931-12-14 1934-01-23 Feuillee Henri Device for protecting internal combustion engines against back firing
US1953443A (en) * 1932-04-18 1934-04-03 Spagliardi Riccardo Nonreturn valve adapted to avoid back-firing in internal combustion engines
DE2419295A1 (de) * 1973-04-23 1974-11-07 Nissan Motor Ansaugsystem fuer einen verbrennungsmotor
FR2354109A1 (fr) * 1976-06-11 1978-01-06 Gestion Courtage Assurances Systeme de prevention de la propagation des incendies d'appareils alimentes en combustibles liquides
DE2733372B1 (de) * 1977-07-23 1978-06-08 Messer Griesheim Gmbh Autogener Schweiss- und/oder Schneidbrenner

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134179A (en) * 1983-02-02 1984-08-08 Alfa Romeo Auto Spa Intake system of an i.c. engine having a plurality of intake valves per cylinder
US5375565A (en) * 1993-12-16 1994-12-27 Caterpillar Inc. Flame arrestor and method of manufacture
DE4432350A1 (de) * 1994-09-12 1996-03-14 Bayerische Motoren Werke Ag Gemischverdichtende Brennkraftmaschine mit einer bei Saugrohr-Rückzündungen wirksamen Steuervorrichtung zur Unterbrechung einer Maschinenbetriebseinrichtung, insbesondere Kraftstoffzufuhr
DE4432350C2 (de) * 1994-09-12 1999-02-18 Bayerische Motoren Werke Ag Gemischverdichtende Brennkraftmaschine mit einer bei Saugrohr-Rückzündungen wirksamen Steuervorrichtung
WO1999014470A1 (fr) 1997-09-15 1999-03-25 Timothy Stone Ameliorations apportees a des moteurs a combustion
FR2905141A1 (fr) * 2006-08-24 2008-02-29 Peugeot Citroen Automobiles Sa Systeme d'admission de gaz dans un moteur a combustion interne, notamment du type diesel
EP2711532A1 (fr) * 2012-09-20 2014-03-26 MWM GmbH Moteur à combustion interne avec dispositif anti-retour de flamme
WO2014044371A3 (fr) * 2012-09-20 2014-05-22 Mwm Gmbh Moteur à combustion interne comprenant un pare-flammes

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