EP1779903A1 - Dispositif de lutte anti-incendie utilisant le liquide de refroidissement d'un moteur - Google Patents

Dispositif de lutte anti-incendie utilisant le liquide de refroidissement d'un moteur Download PDF

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Publication number
EP1779903A1
EP1779903A1 EP06022113A EP06022113A EP1779903A1 EP 1779903 A1 EP1779903 A1 EP 1779903A1 EP 06022113 A EP06022113 A EP 06022113A EP 06022113 A EP06022113 A EP 06022113A EP 1779903 A1 EP1779903 A1 EP 1779903A1
Authority
EP
European Patent Office
Prior art keywords
pump
extinguishing agent
spray nozzles
line
fire
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.)
Granted
Application number
EP06022113A
Other languages
German (de)
English (en)
Other versions
EP1779903B1 (fr
Inventor
Andreas Eberle
Robert Kugelmann
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.)
MAN Truck and Bus SE
Original Assignee
MAN Nutzfahrzeuge AG
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 MAN Nutzfahrzeuge AG filed Critical MAN Nutzfahrzeuge AG
Publication of EP1779903A1 publication Critical patent/EP1779903A1/fr
Application granted granted Critical
Publication of EP1779903B1 publication Critical patent/EP1779903B1/fr
Active legal-status Critical Current
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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles

Definitions

  • the invention relates to a device for controlling fires in the engine compartment of a commercial vehicle with the generic features specified in the preamble of claim 1 Art.
  • a confluence of combustible fuels with heat sources of extremely high temperatures in a confined space may be e.g. in the engine compartment in extreme cases lead to a fire. Fire cases of this kind usually lead to total damage to the affected vehicle and represent a life-threatening situation for drivers and passengers.
  • cooling liquid of the extinguishing system is performed as extinguishing liquid with operating air pressure, from existing in the vehicle air tanks to the source of fire.
  • a prevailing in the operating pressure is usually too low to achieve an effective nebulization of the extinguishing agent with a corresponding extinguishing effect on the spray nozzles.
  • the cooling liquid is in the cooling system of the motor vehicle under atmospheric pressure and must be compressed, for example for a nebulization as extinguishing agent before the fire on pressure ratios of about 100 - 130 bar.
  • only a small part of the total existing in the vehicle compressed air supply is available, since the majority of the compressed air supply to maintain the brake system is required.
  • Object of the present invention is therefore to provide a device to provide in the event of fire, arranged in the engine compartment spray nozzles, extinguishing agent always with the pressure required for the extinguishing operation.
  • the pressure source is formed by an electric motor driven pump, the suction side via a line with a built-in case of fire on passage switchable valve with the engine cooling system and the pressure side leading to the spray nozzles Line is connected.
  • the fire detection system is advantageously able to detect a fire in the engine compartment of the commercial vehicle and display this a control device that automatically triggers the connection of a pump.
  • the fire detection system is e.g. Can also be used in the passenger compartment of the vehicle.
  • the deletion process can initially be initiated unaffected by the reaction possibility of the vehicle driver.
  • the presence of a fire is detected by the at least one sensor arranged in the engine compartment.
  • the sensor forwards a signal to a control unit, whereupon it initiates the deletion process.
  • the control unit sends e.g. an electrical signal to a switch.
  • the switch closes the circuit between the power source of the pump e.g. the vehicle battery and the pump motor. It is also conceivable that the switch closes the circuit in the electric motor of the pump and thereby the deletion process is triggered.
  • the pump can be driven by the starter instead of by the drive unit of the commercial vehicle. Such a design leads to additional weight and space savings, since it can be used on an already existing in the vehicle unit. At the same time, the starter of a bus has sufficient power reserves for the operation of the extinguishing device.
  • the ignition of the engine can be switched off with the deletion process. In the event that the driver is no longer able to initiate rescue measures, this ensures that the control unit interrupts the running of the engine and / or initiates the braking process.
  • the safety of the driver and the passengers can be increased by the fact that when the sensor is triggered by this or the control unit, a signal is sent to the driver. Due to the length of the bus, the position of the driver and the motor are often far from each other. It is conceivable that the driver sits above or in front of the engine, so that a possible smoke formation due to the wind from the driver until very late or not perceived. Against this background, it is preferred that simultaneously with the occurrence of a fire in the engine compartment from the control unit in the cab an alarm is triggered so that the driver can initiate the necessary rescue measures.
  • the pump can be seen in the flow direction, behind a normally closed valve, hereinafter referred to as shut-off valve, are fed by a second pump disposed in the line with extinguishing agent.
  • Fig. 1 shows a schematic representation of a motor 1 which is connected to an associated cooling system 2.
  • the cooling system 2 comprises a liquid cooler 3, a system of cooling lines 4 and a pump 5.
  • the pump 5 is shown as a high-pressure pump with an associated electric motor 6, the circuit 7 is powered by a vehicle battery 8.
  • the cooling lines 4 are shown on the basis of arrows as cooling liquid supplying 9 and cooling liquid 10 discharging.
  • the pump 5 is connected to the cooling system 2 via a shut-off valve 11 arranged in the cooling line 9 supplying the cooling liquid.
  • Fig. 1 shows that, according to the invention, at an overhead area of the cooling system 2, e.g. on the liquid cooler 3 by a control device (not shown) actuated vent valve 12 may be arranged. Since the cooling system 2 is aerated or vented by opening the venting valve 12, the formation of a vacuum in the cooling system 2 is prevented when pumping the cooling liquid through the downstream pump 5. Destruction of the cooling system 2 is thereby prevented.
  • the vent valve 12 is preferably larger than the check valve 11.
  • an extinguishing agent supply line 13 a water jet pump 14 and spray nozzles 15 are arranged.
  • the extinguishing agent supply line 13 opens into a number of spray nozzles 15, which, as shown schematically in FIG. 1, are arranged in the engine compartment.
  • the pressure of the extinguishing agent at the spray nozzles can be constructed by an electric motor driven pump 5, and the pump 5, the extinguishing agent suction side via a line 22 with the built-in, in case of fire on passage switchable shut-off valve 11 can be supplied.
  • the extinguishing agent can be supplied to the spray nozzles 15 by the pump 5 via the line 13 leading to the spray nozzles 15.
  • Another advantage is that no additional supply of extinguishing liquid needs to be carried, as according to the invention, depending on the size and weight of the commercial vehicle, a cooling water volume between about 25 and 60 liters is available for extinguishing purposes.
  • the number and position of the spray nozzles 15 are variable as needed to the particularly fire-prone locations in the engine compartment.
  • a fire-fighting additive can be added to the extinguishing agent.
  • the supply into the extinguishing agent supply line 13 via a connected to an additional container 16 water jet pump 14, between the pump 5 and the spray nozzles 15 takes place.
  • water jet pump 14 proves to be advantageous because it is based on a simple design principle and thus the manufacturing costs for the bus are not excessively increased.
  • the additive can be injected from the water jet pump 14 into the extinguishing agent supply line 13, which favors optimal distribution of the additive or the additives in the extinguishing liquid.
  • the admixture of an additive or an additive combination can take place at any point within the conduit 13 conveying the extinguishing agent.
  • an additive for example, film or foaming agents can be used.
  • the sensor signal can be terminated after a predetermined period of time and repeated as the fire continues.
  • the control unit can be programmed, for example, so that the circuit of the pump 5 is interrupted after a previously determined period of time, for example, about 90 seconds and the, the extinguishing agent promoting pump motor is turned off.
  • sensors, lines 13:22 and the controller are designed to be insensitive to heat.
  • control unit can be activated by a signal triggered by the sensor, the signal duration and / or the signal frequency can be controlled by a timer. A resumption of the fire can thus be effectively combated. The consumption of the entire extinguishing agent in the first deletion process is avoided.
  • At least one filter 17 may be arranged in the line 13, which supplies the extinguishing agent to the spray nozzles 15, as seen in the direction of flow, behind the flow-switchable shut-off valve 11. Behind the normally closed shut-off valve 11, the extinguishing agent in the leading to the spray nozzles 15 lines 13 can be cleaned. In an advantageous embodiment of the invention can be filtered in this way the extinguishing agent to protect the spray nozzles 15 from contamination. The contamination of the spray nozzles 15 is effectively prevented and thus kept a permanent fire protection.
  • the spray nozzles 15 may e.g. be provided with sintered screw-in sieves. It is conceivable that the filter or filters 17 are coupled between the pump 5 and the one or more spray nozzles 15. In order to obtain high differential pressures of e.g. 100 bar in front of and behind the filter 17 to be able to withstand high pressure filter can be used.
  • the filter 17 can be placed anywhere within the extinguishing agent feeding line 13, e.g. Arrangements in front of the spray nozzles 15 or in front of the pump 5 are also conceivable.
  • the filters 17 are adapted to the type of coolers 3, taking into account that, for example, liquids cooled with plastic coolers are subject to greater contamination than liquids cooled with steel coolers.
  • the filter 17 is a high pressure filter and is positioned between the high pressure pump 5 and the water jet pump 14, in front of the spray nozzles 15.
  • FIG. 3 shows that, in an advantageous embodiment of the invention, the valve 11, which releases the conduit 22 carrying the extinguishing agent, can be arranged on the suction side in front of the low-pressure pump 18.
  • a second pump 18 can be arranged on the suction side in front of the pump 5.
  • the extinguishing agent-promoting pump 5 is preferably a high-pressure pump, while the second pump 18 is a low-pressure pump, and can be used to power the high-pressure pump with extinguishing agent.
  • the embodiment of the invention ensures a constant and timely supply of low pressure pump 18 with extinguishing agent.
  • the low-pressure pump 18 can be supplied with extinguishing agent even before the formation of the fire, for example when reaching a predetermined triggering temperature and thus before the connection of the high-pressure pump 5 under the pressure required for fire fighting.
  • the high-pressure pump 5 can be cleaned by connecting the low-pressure pump 18.
  • Both pumps 5; 18 are fed in Fig. 3 by the vehicle battery 8 and are connected in parallel with each other.
  • shut-off valve 11 connects the cooling system 2 not with the high pressure pump 5, but with the low pressure pump 18.
  • the latter pump 18 is connected to the high pressure pump 5 via a connecting line 20, about which High-pressure pump 5 is fed with extinguishing agent.
  • the startup of the pump 5 takes place; 18.
  • the extinguishing agent at the opening of the vent valve 12 in the still functioning pump 5 and thus ensure effective fire fighting.
  • the invention offers the advantage that the low-pressure pump 18 can still be burned before the occurrence of a fire, e.g. from reaching a fixed limit temperature, the high pressure pump 5 feeds with extinguishing liquid, whereby in the high pressure pump 5, a form is established.
  • the extinguishing liquid at the source of pressure conditions up to about 130 bar are conceivable.
  • the pressure required for the extinguishing operation is generated according to the invention only when needed and in the respectively required height, so that neither the pump 5 nor the line system 13; 22 permanently high pressure conditions are exposed.
  • the filter 17 in FIG. 3 is arranged between the low-pressure pump 18 and the high-pressure pump 5.
  • the vent valve 12 may be connected to one of the operating pressure air system (not shown) acted upon pressure reducer 21. This will take effect Damage to the cooling system 2 by supplying too high supply pressure avoided.
  • the venting valve 12 and the pressure reducer 21 are arranged on the liquid cooler 3.
  • the liquid cooler 3 is acted upon by the operating pressure system with a pressure reduced by the pressure reducer 21 to approximately 1 bar. The extinguishing liquid is thus pressed under pressure into the supply lines 22, which leads to the formation of a pre-pressure in the applied pump 5.
  • the additional air valve 12 is provided, which opens automatically when a predetermined pressure is exceeded.
  • Fig. 4 shows

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
EP20060022113 2005-10-26 2006-10-21 Dispositif de lutte anti-incendie utilisant le liquide de refroidissement d'un moteur Active EP1779903B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510051214 DE102005051214A1 (de) 2005-10-26 2005-10-26 Kühlwasserlöschanlage

Publications (2)

Publication Number Publication Date
EP1779903A1 true EP1779903A1 (fr) 2007-05-02
EP1779903B1 EP1779903B1 (fr) 2010-03-10

Family

ID=37769373

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060022113 Active EP1779903B1 (fr) 2005-10-26 2006-10-21 Dispositif de lutte anti-incendie utilisant le liquide de refroidissement d'un moteur

Country Status (2)

Country Link
EP (1) EP1779903B1 (fr)
DE (2) DE102005051214A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2105166A1 (fr) * 2008-03-28 2009-09-30 Carl Freudenberg KG Dispositif destiné à combattre des incendies dans un véhicule
RU2446846C1 (ru) * 2011-04-11 2012-04-10 Открытое акционерное общество "Уральское конструкторское бюро транспортного машиностроения" Система пожаротушения транспортного средства
CN113304419A (zh) * 2021-06-03 2021-08-27 中消盾科技有限公司 一种汽车自燃灭火装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3718805A1 (fr) 2009-11-20 2020-10-07 Norm Mathers Convertisseur de couple hydrostatique et amplificateur de couple
WO2016065392A1 (fr) * 2014-10-27 2016-05-06 Norman Ian Mathers Système d'extinction d'incendie de véhicule
US10788112B2 (en) 2015-01-19 2020-09-29 Mathers Hydraulics Technologies Pty Ltd Hydro-mechanical transmission with multiple modes of operation
EP3394395B1 (fr) 2015-12-21 2024-04-24 Mathers Hydraulics Technologies Pty Ltd Machine hydraulique à anneau chanfreiné
WO2018161108A1 (fr) 2017-03-06 2018-09-13 Norman Ian Mathers Machine hydraulique à aube à rouleaux étagée et système d'alimentation en fluide comprenant une machine hydraulique avec capacité de moteur de démarage
DE102018211629A1 (de) 2018-07-12 2020-01-16 Audi Ag Löschsystem für eine Hochvoltbatterie eines Kraftfahrzeugs und Kraftfahrzeug mit einem Löschsystem für eine Hochvoltbatterie
DE102019128121A1 (de) * 2019-10-17 2021-04-22 Bayerische Motoren Werke Aktiengesellschaft Kraftfahrzeug, insbesondere ein Kraftwagen, sowie ein Verfahren zum Betreiben eines solchen Kraftfahrzeugs

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248309A (en) * 1979-07-11 1981-02-03 Dayco Corporation Fire extinguishing system utilizing the engine cooling system
EP1155714A2 (fr) * 2000-05-15 2001-11-21 Wärtsilä Technology Oy AB Procédé et dispositif pour l'extinction d'incendies en connexion avec un moteur à combustion interne
DE10333382A1 (de) * 2003-07-23 2005-02-10 Man Nutzfahrzeuge Ag Vorrichtung zur Brandbekämpfung in einem Kraftfahrzeug insbesondere Nutzfahrzeug

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248309A (en) * 1979-07-11 1981-02-03 Dayco Corporation Fire extinguishing system utilizing the engine cooling system
EP1155714A2 (fr) * 2000-05-15 2001-11-21 Wärtsilä Technology Oy AB Procédé et dispositif pour l'extinction d'incendies en connexion avec un moteur à combustion interne
DE10333382A1 (de) * 2003-07-23 2005-02-10 Man Nutzfahrzeuge Ag Vorrichtung zur Brandbekämpfung in einem Kraftfahrzeug insbesondere Nutzfahrzeug

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2105166A1 (fr) * 2008-03-28 2009-09-30 Carl Freudenberg KG Dispositif destiné à combattre des incendies dans un véhicule
RU2446846C1 (ru) * 2011-04-11 2012-04-10 Открытое акционерное общество "Уральское конструкторское бюро транспортного машиностроения" Система пожаротушения транспортного средства
CN113304419A (zh) * 2021-06-03 2021-08-27 中消盾科技有限公司 一种汽车自燃灭火装置

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Publication number Publication date
EP1779903B1 (fr) 2010-03-10
DE502006006383D1 (de) 2010-04-22
DE102005051214A1 (de) 2007-05-03

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