EP2119479B2 - Dispositif coupe-feu - Google Patents

Dispositif coupe-feu Download PDF

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Publication number
EP2119479B2
EP2119479B2 EP09003193.1A EP09003193A EP2119479B2 EP 2119479 B2 EP2119479 B2 EP 2119479B2 EP 09003193 A EP09003193 A EP 09003193A EP 2119479 B2 EP2119479 B2 EP 2119479B2
Authority
EP
European Patent Office
Prior art keywords
housing
smoke
temperature sensor
housing section
detector
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.)
Not-in-force
Application number
EP09003193.1A
Other languages
German (de)
English (en)
Other versions
EP2119479B1 (fr
EP2119479A1 (fr
Inventor
Eidmann Jürgen
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.)
Strulik GmbH
Original Assignee
Strulik GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40943689&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2119479(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Strulik GmbH filed Critical Strulik GmbH
Priority to CN2009101381279A priority Critical patent/CN101579559B/zh
Publication of EP2119479A1 publication Critical patent/EP2119479A1/fr
Publication of EP2119479B1 publication Critical patent/EP2119479B1/fr
Application granted granted Critical
Publication of EP2119479B2 publication Critical patent/EP2119479B2/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/246—Operating or controlling mechanisms having non-mechanical actuators
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/246—Operating or controlling mechanisms having non-mechanical actuators
    • A62C2/247—Operating or controlling mechanisms having non-mechanical actuators electric

Definitions

  • the invention relates to a fire protection shut-off device, in particular for ventilation ducts, with a shut-off housing, a shut-off flap arranged inside the shut-off housing, a closing device working on the shut-off flap and a detection device with at least one temperature sensor, which generates a trigger signal for the flap drive, so that the shut-off flap with the closing device a release position can be converted into a shut-off position.
  • a fire protection shut-off device is also referred to as a fire protection flap.
  • the butterfly valve arranged therein is usually rotatably, pivotally and / or displaceably mounted in the valve housing, the z. B.
  • the locking device which can be designed as a flap drive, is in particular an electric motor drive, for. B. a spring return motor, which is supplied with a suitable voltage and brings the butterfly valve while simultaneously tensioning the return spring in the open position.
  • an electric motor drive for. B. a spring return motor, which is supplied with a suitable voltage and brings the butterfly valve while simultaneously tensioning the return spring in the open position.
  • the power supply to the spring return motor is interrupted, so that the shut-off device is transferred to the closed position or shut-off position by means of the spring energy.
  • the fire protection shut-off device consequently ensures that the shut-off flap is closed automatically in the event of a fire, so that passage of air or other gases and / or passage of fire and smoke is prevented.
  • the locking device or the flap drive z. B. connected to the butterfly valve via at least one lever or linkage.
  • a fire protection shut-off device of the type described at the outset with a round or square housing and a butterfly valve which is rotatably or pivotably mounted in the housing, a spring return motor being connected to the outside of the housing and operating in the manner described on the butterfly valve.
  • a detection device designed as a temperature sensor projects into the housing or the interior of the housing, which is designed as a thermoelectric sensor and triggers at temperatures above approx. 72 ° C. (static temperature) and controls the spring return motor.
  • smoke detection devices for fire protection systems which have at least one optical smoke detector.
  • the smoke detector is integrated in the housing, which is usually placed on the outside of an air duct. Only a smoke collecting tube protrudes into the air duct, which in the event of fire directs the smoke from the air duct into the area of the smoke detector.
  • a fire protection shut-off device for a building with a z. B. in the roof area arranged butterfly valve, wherein a plurality of sensors are distributed in the building, which can be designed in particular as temperature sensors.
  • the sensors distributed in individual rooms of the building can optionally determine fire, smoke, gas or high temperatures.
  • the US 5,728,001 describes a fire protection shut-off device with a butterfly valve, a temperature sensor protruding into an air duct.
  • the invention has for its object to provide a fire protection shut-off device for a ventilation duct or for ventilation ducts of the type described above, which is characterized by a high degree of safety and reliability with a simple and compact structure.
  • the invention teaches in a generic fire protection shut-off device, in particular for ventilation ducts, of the type described in the introduction that the detection device is designed as a combined temperature and smoke detection device in which both a temperature sensor and a smoke sensor are integrated.
  • the detection device has a detector housing which projects into the housing or housing interior and in which both the temperature sensor and the smoke sensor are arranged.
  • the invention is based on the finding that the reliability and safety of a fire protection shut-off device can be significantly improved if the shut-off function is not triggered only by a temperature sensor protruding into the interior of the housing, but if a smoke detector is additionally integrated in the detection device. Because while the temperature sensor only at sufficiently high temperatures of z. B. responds to more than 70 ° C or 72 ° C, the smoke detector triggers the shut-off device in the event of a fire even if there are relatively low temperatures in the area of the ventilation duct or the fire damper, but smoke does enter the ventilation duct.
  • a uniform detection device is provided with a uniform detector housing which projects into the shut-off housing and in which both the temperature sensor and the smoke detector are arranged.
  • the detector housing arranged within the shut-off housing has a first opening, through which the temperature sensor protrudes.
  • the temperature sensor is arranged “protected” within the shut-off housing.
  • the detector housing can in the area of the temperature sensor, for. B. in the area of the opening through which the temperature sensor protrudes, have a temperature sensor partially enclosing and partially open protective housing.
  • a protective housing can, for. B. be designed as a protective cage or the like. This ensures that the temperature inside the shut-off housing or the fire damper is reliably determined, but at the same time the temperature sensor is protected against mechanical stresses that may occur during assembly but also during transportation or storage of the detector ,
  • the detector housing can as a tubular, for. B. cylindrical housing.
  • the temperature sensor protrudes from the detector housing (into the ventilation duct) through a first opening at the front.
  • the detector housing has a second opening as a smoke inlet opening, so that the smoke can get into the interior of the detector housing in which the smoke detector is arranged.
  • This smoke inlet opening is formed by a grid-like or a perforated housing section. In the case of a tubular or cylindrical detector housing, it is expedient if this smoke inlet opening is positioned on the circumference.
  • the detector housing is not designed as a uniform tubular or cylindrical housing with a substantially constant diameter over the entire length, but in such an alternative embodiment the detector housing has a first tubular housing section which, for. B. receives an evaluation unit and a second housing section adjoining the first housing section, which houses the smoke sensor.
  • the shape of the second housing section is preferably adapted to the outer contour of the smoke sensor.
  • the second housing section it can be expedient for the second housing section to be substantially cylindrical, the (longitudinal) axis of this second cylindrical housing section being approximately orthogonal to the (longitudinal) axis of the cylindrical first housing section.
  • the height of the cylindrical second housing section then preferably corresponds approximately to the diameter of the first cylindrical housing section. In this way, a detector housing is created overall, which is of compact construction and at the same time accommodates the necessary components in a space-saving manner.
  • One or more smoke inlet openings can be arranged in the peripheral region or in the cylinder jacket region of the second cylindrical housing section.
  • the end faces of this cylindrical second housing section are preferably designed to be closed.
  • the closing mechanism or flap drive is preferably designed in a manner known per se as an electromotive drive and / or as a spring drive. It can particularly preferably be a spring return motor.
  • the drive is preferably provided with a control device or connected to a control device. As soon as the detection device generates a trigger signal, the drive is controlled via the control device in such a way that the shut-off valve is transferred to the shut-off position. In the case of an electromotive spring return motor, this brings the shut-off device into the open position with a corresponding voltage supply, with simultaneous tensioning of the return spring arranged within the spring return motor. By interrupting the power supply, e.g. B.
  • shut-off device in the presence of a trigger signal, the shut-off device is moved by means of the spring energy in the closed position.
  • This "closed-circuit principle” also ensures that the butterfly valve is triggered even in the event of a short-circuit or an interruption in the power supply.
  • the detection device is provided with evaluation electronics. Both the temperature sensor and the smoke sensor are connected to this evaluation electronics.
  • the evaluation electronics are in turn connected to the electromotive drive or to the control device for the electromotive drive, ie the evaluation unit generates the trigger signal. It is advantageous if the evaluation electronics generate a trigger signal for the flap drive or the control device, if the temperature sensor generates a temperature signal and / or the smoke sensor generates a smoke signal.
  • the evaluation of these two signals is therefore preferably carried out within the evaluation electronics, which then generates a "uniform" trigger signal for the flap drive or the control device in the sense of an "OR operation” both when only the temperature sensor is triggered and when only the smoke sensor is triggered.
  • the evaluation electronics are integrated into the detector housing according to the invention. However, there is also the possibility of providing the evaluation electronics outside the detector housing in a separate housing, which then B. is arranged outside the shut-off housing.
  • Evaluation electronics on the one hand and control device for the motor on the other hand can also be combined, i. H. the evaluation electronics can be integrated in the control device or vice versa.
  • the smoke sensor is preferably designed in a manner known per se as an optical sensor.
  • known sensors working on the optical principle by means of one or more diodes or diode detectors can be used.
  • a fire protection shut-off device for ventilation ducts or for a ventilation duct is shown in the figures.
  • This fire protection device which is also referred to in practice as a fire damper, has in its basic structure a shut-off housing 1 and a shut-off damper 2 arranged in the shut-off housing 1 is arranged between two ventilation ducts.
  • the butterfly valve 2 is rotatably mounted within the shut-off housing 1.
  • a locking mechanism is provided in the embodiment as a flap drive 3, which works on the shut-off flap via a linkage or a lever arrangement or a lever mechanism 4.
  • the flap drive 3 is designed in the exemplary embodiment as an electric motor drive in the embodiment as a spring return motor.
  • This drive 3 is equipped with a control device 5 and, moreover, is connected to a suitable voltage supply 6.
  • the spring return motor brings the butterfly valve 2 into the in via this voltage supply Fig. 1 Shown open position, in which the passage through the housing interior is released.
  • the return spring of the spring return motor 3 is tensioned at the same time. If the power supply, e.g. B. interrupted by triggering in the event of fire, the return spring integrated in the spring return motor 3 closes the butterfly valve 2 and consequently brings it into the shut-off position, not shown.
  • a detection device 7 projecting into the shut-off housing 1 is provided, which is connected to the flap drive 3 or its control device 5 and generates a trigger signal in the event of an alarm, so that the shut-off flap 2 with the flap drive 3 is transferred from the release position to the shut-off position, in which the passage through the housing 1 and consequently also through the ventilation ducts connected to it is closed.
  • the detection device 7 is now designed as a combined temperature and smoke detection device.
  • a temperature sensor 8 and a smoke sensor 9 are integrated in this detection device 7.
  • the detection device 7 has a z. B. tubular or cylindrical detection housing 10, which forms a combined smoke and temperature sensor, which protrudes into the interior of the shut-off housing 1.
  • the structure of a first embodiment of this detection device 7 according to the invention results, for example, from a comparative consideration of Fig. 2 . 3 and 4 , It is fastened via an end fastening flange 11 in a mounting opening 12 of the shut-off housing 1.
  • the detector housing 10 has an end opening 13 through which the temperature sensor 8 protrudes somewhat. This ensures that, for example, a commercially available thermal sensor is arranged as a temperature sensor directly inside the shut-off housing, so that reliable temperature detection is possible.
  • the detector housing 10 has a smoke inlet opening 14. This is because the smoke sensor 9 is arranged inside the detector housing 10 projecting into the shut-off housing 1, so that the smoke can reach the area of the smoke sensor 9 via the smoke inlet opening 14.
  • the smoke inlet opening 14 is formed by a grid-like or a perforated housing section or is with such a grid-like or perforated housing section covered. In the exemplary embodiment, this smoke inlet opening 14 is arranged on the circumference. In Fig. 4 it can be seen that the smoke sensor itself is arranged directly under the smoke inlet opening 14 or the perforated housing area, specifically in the vicinity of the housing end.
  • the 5 to 7 show a preferred embodiment of a detection device 7 according to the invention.
  • This embodiment differs from the embodiment according to 1 to 4 inter alia by the shape of the detector housing 10.
  • the detector housing 10 has a first tubular or cylindrical housing section 10a and has a second housing section 10b adjoining the first housing section 10a.
  • This second housing section 10b receives the smoke sensor 9.
  • the shape of the second housing section 10b is adapted to the outer contour of the smoke sensor 9.
  • this second housing section 10b is also cylindrical or essentially cylindrical, the axis 16b of this second cylindrical housing section 10b being arranged approximately orthogonally to the axis 16a of the first cylindrical housing section 10a.
  • the height h of the second cylindrical housing section 10b corresponds approximately to the diameter d of the first cylindrical housing section 10a. This means that the height h (as shown) can also (somewhat) deviate from the thickness d, e.g. B. can be slightly larger. z. B. by up to 20%, preferably by only up to 15%.
  • the smoke inlet openings 14 are arranged in the peripheral region or cylinder jacket region of the second housing section 10b. Two smoke entry openings 14 are provided. The end faces 17 of this second cylindrical housing section 10b are closed.
  • the temperature sensor 8 does not protrude freely from the detector housing 10, but rather that the detector housing 10 in the region of the temperature sensor 8 and consequently also in the region of the opening 13 has a protective housing 13a which surrounds the temperature sensor in some areas and is open in some areas.
  • this protective housing is designed as a protective cage 13a. It is clear that a correct temperature detection is possible in this way, but that the temperature sensor 8 is protected against mechanical damage.
  • the temperature sensor 8 is in the region of the opening 13 on a z. B. arranged in the opening retaining web.
  • the temperature sensor 8 is not led through or past the smoke sensor, but is (completely) positioned in the region of the end-side protective cage 13a. It is then only necessary to route the wiring for the temperature sensor 8 past the smoke sensor 9.
  • the holding web, to which the temperature sensor is attached on the foot side lies (approximately) on the circumference of the second cylindrical housing section 10b and consequently outside the circumference of the smoke sensor 9.
  • the protective cage 13a is particularly expedient.
  • a protective cage 13a according to 5 to 7 can in principle also in the embodiment according to 2 to 4 be provided. This is not shown.
  • Temperature sensor 8, on the one hand, and smoke sensor 9, on the other hand, are connected to a common evaluation unit or evaluation electronics 15, which are routed within the detector housing 10, which in the exemplary embodiment according to 2 to 4 is arranged outside the shut-off housing 1.
  • This evaluation electronics 15 is - as in Fig. 1 indicated - connected to the flap drive 3 or its control device 5.
  • the evaluation electronics 15 is designed in such a way that a trigger signal is generated when the temperature sensor 8 or the smoke sensor 9 responds.
  • the sensor signals are consequently evaluated in the sense of a logical OR operation. In principle, a logical AND link would also be possible.
  • the logical OR operation is characterized by an increased degree of safety against tripping, since the butterfly valve 2 is also closed, for example, even when the temperatures are low and smoke is nevertheless detected.
  • the sensitivity of the smoke sensor 9 and / or the temperature sensor 8 can be adjusted.
  • the evaluation unit 15 is arranged inside the detector housing 10. This is exemplary in the 5 to 7 shown.
  • the evaluation unit 15 is arranged in the first cylindrical housing section 10a.
  • the detection device according to the invention can consequently cooperate with a conventional flap drive and also with a conventional control device, since it is irrelevant for the control device whether a triggering takes place on the basis of the temperature signal or the smoke signal.
  • the evaluation unit 15, to which the sensors 8, 9 are connected, can also supply the sensors 8, 9 with power.
  • optical display elements e.g. B. LEDs are provided, which can also be connected to the control electronics or integrated into this. These LEDs are not shown.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)

Claims (12)

  1. Dispositif de sectionnement coupe-feu pour des canaux de ventilation, avec au moins
    un boîtier de sectionnement (1) lequel est raccordé sur un canal de ventilation ou monté entre des canaux de ventilation,
    un volet de sectionnement (2) placé à l'intérieur du boîtier de sectionnement (1),
    un dispositif de fermeture (3) agissant sur le volet de sectionnement (2), ainsi
    qu'un dispositif détecteur (7) avec au moins un capteur de température (8), lequel génère un signal de déclenchement pour le dispositif de fermeture (3), de sorte que
    le volet de sectionnement (2) puisse être passé, avec le dispositif de fermeture (3) d'une position de libération dans une position de sectionnement, caractérisé
    - en ce que le dispositif détecteur (7) est conçu en tant que dispositif mixte détecteur de température et de fumée, dans lequel est intégré aussi bien au moins un capteur de température (8) qu'aussi également au moins un capteur de fumée (9),
    - en ce que le dispositif détecteur (7) comporte un boîtier de détecteur (10) uniforme, saillant dans le boîtier de sectionnement (1), dans lequel sont placés aussi bien le capteur de température (8) qu'également le capteur de fumée (9),
    - en ce que le boîtier de détecteur (10) comporte un orifice (13) hors duquel le capteur de température (8) saillit d'une dimension prédéfinie et
    - en ce que le boîtier de détecteur (10) comporte au moins un orifice d'entrée (14) pour la fumée, lequel est formé ou recouvert par une partie de boîtier grillagée ou perforée.
    - en ce que le dispositif détecteur (7) est équipé d'une unité d'évaluation (15), laquelle est relié aussi bien avec le capteur de température (8) qu'également avec le capteur de fumée (9), et laquelle est intégré dans le boîtier de détecteur (10) faisant saillie dans le boîtier de sectionnement (1).
  2. Dispositif selon la revendication 1, caractérisé en ce que dans la zone du capteur de température(8), par ex. dans la zone de l'orifice (13), le boîtier de détecteur (10) comporte un boîtier protecteur, par exemple une cage protectrice (13a) entourant au moins par endroits le capteur de température et ouvert au moins par endroits.
  3. Dispositif selon la revendication 1 ou la revendication 2, caractérisé en ce que le boîtier de détecteur (10) est conçu en tant que boîtier de forme tubulaire, par ex. avec une section transversale ronde ou rectangulaire.
  4. Dispositif selon la revendication 3, caractérisé en ce que l'orifice (13) pour le capteur de température (8) est placé sur la face frontale ou sur la face d'extrémité dans le boîtier de détecteur (10).
  5. Dispositif selon la revendication 3 ou la revendication 4, caractérisé en ce que l'orifice d'entrée (14) pour la fumée est placé sur le côté périphérique dans le boîtier de détecteur (10).
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le boîtier de détecteur (10) comporte une première partie de boîtier (10a) de forme tubulaire, par exemple de forme cylindrique, laquelle reçoit par ex. un système électronique d'évaluation (15) et une deuxième partie de boîtier (10b) se raccordant sur la première partie de boîtier (10a), laquelle reçoit le capteur de fumée (9), la deuxième partie de boîtier (10b) étant adaptée par sa forme au contour extérieur du capteur de fumée (9).
  7. Dispositif selon la revendication 6, caractérisé en ce que la deuxième partie de boîtier (10b) est conçue de forme sensiblement cylindrique, l'axe (16b) de ladite deuxième partie de boîtier (10b) étant placé de manière approximativement orthogonale par rapport à l'axe (16a) de la première partie de boîtier (10a).
  8. Dispositif selon la revendication 6 ou la revendication 7, caractérisé en ce que la hauteur (h) de la deuxième partie de boîtier (10b) cylindrique correspond approximativement au diamètre (d) de la première partie de boîtier (10a) cylindrique.
  9. Dispositif selon l'une quelconque des revendications 6 à 8, caractérisé en ce qu'un ou plusieurs orifices d'entrée pour la fumée sont placés dans la zone périphérique ou dans la zone de l'enveloppe cylindrique de la deuxième partie de boîtier (10b).
  10. Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le dispositif de fermeture est conçu en tant qu'entraînement de volet (3), par ex. en tant qu'entraînement électro-motorisé et/ou en tant qu'entraînement par ressort, de préférence en tant que moteur de rappel à ressort.
  11. Dispositif selon l'une quelconque des revendications 1 à 10, caractérisé en ce que l'entraînement de volet (3) est équipé d'un dispositif de commande (5) ou relié avec un tel dispositif.
  12. Dispositif selon la revendication 10, ou la revendication 11, caractérisé en ce que le système électronique d'évaluation (15) génère un signal de déclenchement pour l'entraînement de volet (3) ou pour le dispositif de commande (5), lorsque le capteur de température (8) génère un signal de température et/ou le capteur de fumée (9) génère un signal de fumée.
EP09003193.1A 2008-05-17 2009-03-05 Dispositif coupe-feu Not-in-force EP2119479B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009101381279A CN101579559B (zh) 2008-05-17 2009-05-05 防火阻隔装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008024085.0A DE102008024085B4 (de) 2008-05-17 2008-05-17 Feuerschutzabsperrvorrichtung

Publications (3)

Publication Number Publication Date
EP2119479A1 EP2119479A1 (fr) 2009-11-18
EP2119479B1 EP2119479B1 (fr) 2017-01-04
EP2119479B2 true EP2119479B2 (fr) 2020-02-12

Family

ID=40943689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09003193.1A Not-in-force EP2119479B2 (fr) 2008-05-17 2009-03-05 Dispositif coupe-feu

Country Status (3)

Country Link
EP (1) EP2119479B2 (fr)
CN (1) CN101579559B (fr)
DE (1) DE102008024085B4 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2473424A (en) * 2009-08-27 2011-03-16 Thomas Welsh A smoke extraction system
DE202017103273U1 (de) 2017-05-31 2017-06-28 Strulik Gmbh Feuerschutzabsperrvorrichtung
US11118688B2 (en) 2019-06-05 2021-09-14 Caterpillar Inc. Throttle with integrated fluid shutoff trigger mechanism

Citations (2)

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JPH1040476A (ja) † 1996-07-25 1998-02-13 Matsushita Electric Works Ltd 熱煙複合感知器
DE20007841U1 (de) † 2000-04-29 2000-09-21 Kompressorenbau Bannewitz Gmbh Gleitdichtungen und Gleitlager für Turbinen und andere Maschinen mit extrem hoher Drehzahl

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US4928583A (en) * 1988-07-22 1990-05-29 Taylor Harry L Air flow control system
US5123875A (en) * 1991-04-12 1992-06-23 Eubank Manufacturing Enterprises, Inc. Power actuated roof vent apparatus and method of use
US5533929A (en) * 1993-12-29 1996-07-09 Attridge, Jr.; Russell G. Remotely trippable and resettable damper
CN2319868Y (zh) * 1997-09-30 1999-05-19 南京消防(集团)公司 智能点型光电感烟感温复合火灾探测器
CA2291203A1 (fr) * 1998-12-04 2000-06-04 George A. Schoenfelder Detecteur aspirateur dote d'un capteur d'ecoulement
US6224481B1 (en) * 1999-08-23 2001-05-01 Mccabe Francis J. Power modulating lead screw actuated butterfly blade action damper
DE20007891U1 (de) 2000-05-02 2000-07-20 Gebrüder Trox, GmbH, 47506 Neukirchen-Vluyn Vorrichtung zur Raucherkennung
JP3823739B2 (ja) * 2001-02-23 2006-09-20 松下電工株式会社 火災感知器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1040476A (ja) † 1996-07-25 1998-02-13 Matsushita Electric Works Ltd 熱煙複合感知器
DE20007841U1 (de) † 2000-04-29 2000-09-21 Kompressorenbau Bannewitz Gmbh Gleitdichtungen und Gleitlager für Turbinen und andere Maschinen mit extrem hoher Drehzahl

Also Published As

Publication number Publication date
EP2119479B1 (fr) 2017-01-04
DE102008024085B4 (de) 2016-03-17
EP2119479A1 (fr) 2009-11-18
CN101579559B (zh) 2013-07-17
CN101579559A (zh) 2009-11-18
DE102008024085A1 (de) 2009-11-26

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