[go: up one dir, main page]

EP0337306A1 - Foam extinguishing unit for fire engines - Google Patents

Foam extinguishing unit for fire engines Download PDF

Info

Publication number
EP0337306A1
EP0337306A1 EP89106134A EP89106134A EP0337306A1 EP 0337306 A1 EP0337306 A1 EP 0337306A1 EP 89106134 A EP89106134 A EP 89106134A EP 89106134 A EP89106134 A EP 89106134A EP 0337306 A1 EP0337306 A1 EP 0337306A1
Authority
EP
European Patent Office
Prior art keywords
foam
pump
extinguishing unit
unit according
water
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
EP89106134A
Other languages
German (de)
French (fr)
Other versions
EP0337306B2 (en
EP0337306B1 (en
Inventor
Hans Dipl.-Ing. Eickhoff
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.)
Iveco Magirus AG
Original Assignee
Iveco Magirus 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6352041&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0337306(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Iveco Magirus AG filed Critical Iveco Magirus AG
Priority to AT89106134T priority Critical patent/ATE75153T1/en
Publication of EP0337306A1 publication Critical patent/EP0337306A1/en
Application granted granted Critical
Publication of EP0337306B1 publication Critical patent/EP0337306B1/en
Publication of EP0337306B2 publication Critical patent/EP0337306B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C5/00—Making of fire-extinguishing materials immediately before use
    • A62C5/02—Making of fire-extinguishing materials immediately before use of foam
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C27/00—Fire-fighting land vehicles

Definitions

  • the invention relates to a motor vehicle foam extinguishing unit with a water tank, a motor vehicle-driven water pump and pressure outlet as a hose or pipe, and with a foam agent tank, a foam agent pump and a mixer for the pressure outlet.
  • the object of the invention is to provide a motor vehicle foam extinguishing unit of the type mentioned, which not only avoids the additional control effort required by the foam agent pump according to the prior art, but is also very compact, can be manufactured at low cost and can be operated reliably.
  • the essence of the invention is to arrange the water pump and foam agent pump on a single shaft or on a shaft train which is driven by the drive motor provided in the motor vehicle anyway.
  • the foam pump is designed for a higher pump pressure than the water pump. In particular, it emits an approximately four bar higher pressure than the water pump. It is preferably equipped with a peripheral rotor.
  • An admixing regulator known per se can be used as the admixer. Alternatively, however, the admixer has an electronic control device with corresponding sensors and control valves.
  • the problem is solved by driving the foam pump and the fire-fighting centrifugal pump in a tandem design by the vehicle engine.
  • the foam compound pump can be accommodated anywhere in the propeller shaft to the water pump or directly in a compact design on the water pump. If the machine operator regulates the delivery rate of the water pump, the foam medium pressure also rises or falls as the speed changes in parallel with the water pressure.
  • a foam extinguishing unit (1) of a motor vehicle in particular a fire engine, comprises a water tank (2), a downstream water pump (4), the suction pipe connection of which is connected to the water tank (2).
  • the pressure connection of the water pump (4) leads to the point of use via a spray hose or a spray pipe (5), with an admixer (8) being interposed.
  • the foam extinguishing unit (1) comprises a foam agent pump (7), the suction connection of which is connected to a foam agent container (6) and the pressure connection of which is connected to the admixer (8) in order to mix foam agent into the water in a suitable, controlled manner, so that a foam arises, which is ultimately sprayed to extinguish a fire or the like.
  • the water pump (4) and foam compound pump (7) are driven by the same motor (3) that is the drive motor of the motor vehicle.
  • the water pump (4) and foam compound pump (7) run at a distance from each other on a shaft assembly (10) or on a short shaft (9) according to FIG. 3 in a compact design.
  • the shaft train (10) and shaft (9) are connected to the output side of the motor (3) via a cardan shaft.
  • the foam agent container (6) is designed to be integrated with the water container (2).
  • the position of the foam compound container (6) in the water container (2) is determined by the position of the foam compound pump (7) in the drive train.
  • the position of the foam agent container (6) is selected so that there is a short foam agent piping to the suction side of the foam agent pump (7).
  • the foam agent pump (7) is designed according to FIGS. 4 and 5 with a so-called peripheral rotor (11).
  • FIG. 6 The basic sketch of a motor vehicle foam extinguishing unit according to the prior art is shown in FIG. 6.
  • Pressure gauge (12) on the pressure side of the water pump in front of the admixer (8) and another pressure gauge (13) on the pressure side of the foam compound pump (7). Both pressures are compared in the controller (14) and the pressure of the pressure gauge (13) is adjusted by a motor (15) which separately drives the foam agent pump (7) in such a way that the foam agent pressure delivered is greater than the water pump pressure.
  • the assemblies (12, 13, 14, 15) and drive shaft (16) between the motor (15) and foam pump (7) provided according to the prior art are clearly omitted in the invention.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

The water pump (4) and the foaming agent pump (7) are driven, in a compact arrangement relative to each other, on a single shaft (9) or a shafting (10) which is driven by the engine (3) of the motor vehicle. As a result a very compact structure is obtained, together with a very low instrumentation expense and simple piping. <IMAGE>

Description

Die Erfindung betrifft eine Kraftfahrzeug-Schaumlöscheinheit mit Wasserbehälter, kraftfahrzeugmotorgetriebener Wasser­pumpe und Druckausang als Schlauch oder Rohr, sowie mit einem Schaummittelbehälter, einer Schaummittelpumpe und einem Zu­mischer zum Druckausgang. The invention relates to a motor vehicle foam extinguishing unit with a water tank, a motor vehicle-driven water pump and pressure outlet as a hose or pipe, and with a foam agent tank, a foam agent pump and a mixer for the pressure outlet.

Bei der Druckzumischung an Feuerwehrfahrzeugen ist es allge­mein üblich, vom Fahrzeugmotor her die Feuerlöschkreisel­pumpe anzutreiben und die Schaummittelpumpe mit einem Motor als Aggregat im Fahrzeug mitzuführen. Dieses Schaummittel-­Pumpenaggregat muß sehr aufwendig geregelt werden, weil in jedem Betriebszustand ein bestimmter Schaummitteldruck dem Wasserdruck aufgegeben werden muß. Von Nachteil ist hier der höhere Regelaufwand sowie der höhere Raumbedarf für das Schaummittel-Pumpenaggregat.When adding pressure to fire-fighting vehicles, it is common practice to drive the fire-fighting centrifugal pump from the vehicle engine and to carry the foam agent pump with a motor as an aggregate in the vehicle. This foam agent pump unit has to be regulated in a very complex manner because a certain foam agent pressure must be given up to the water pressure in every operating state. A disadvantage here is the higher control effort and the higher space requirements for the foam pump unit.

Aufgabe der Erfindung ist die Schaffung einer Kraftfahrzeug-­Schaumlöscheinheit der eingangs genannten Art, die nicht nur den durch die Schaummittelpumpe nach dem Stand der Tech­nik zusätzlichen Regelaufwand vermeidet, sondern sehr kom­pakt aufgebaut ist, zu niedrigen Kosten gefertigt und zuver­lässig betrieben werden kann.The object of the invention is to provide a motor vehicle foam extinguishing unit of the type mentioned, which not only avoids the additional control effort required by the foam agent pump according to the prior art, but is also very compact, can be manufactured at low cost and can be operated reliably.

Gelöst wird die der Erfindung zugrundeliegende Aufgabe durch die im kennzeichnenden Teil des Anspruchs 1 angegebenen Mittel.The object on which the invention is based is achieved by the means specified in the characterizing part of claim 1.

Vorteilhaft weitergebildet wird der Erfindungsgegenstand durch die Merkmale der Unteransprüche 2 bis 8.The subject of the invention is advantageously further developed by the features of subclaims 2 to 8.

Wesen der Erfindung ist, Wasserpumpe und Schaummittelpumpe auf einer einzigen Welle oder auf einem Wellenstrang anzu­ordnen, die bzw. der vom ohnehin beim Kraftfahrzeug vorge­sehenen Antriebsmotor angetrieben ist. Die Schaummittelpumpe ist hierbei für einen höheren Pumpendruck ausgelegt als die Wasserpumpe. Insbesondere gibt sie einen ca. vier bar höheren Druck ab als die Wasserpumpe. Sie ist vorzugsweise mit einem Peripheralläufer ausgetattet. Als Zumischer kann ein an sich bekannter Zumischregler verwendet werden. Alternativ jedoch besitzt der Zumischer eine elektronische Regeleinrichtung mit entsprechenden Meßwertgebern und Regelventilen.The essence of the invention is to arrange the water pump and foam agent pump on a single shaft or on a shaft train which is driven by the drive motor provided in the motor vehicle anyway. The foam pump is designed for a higher pump pressure than the water pump. In particular, it emits an approximately four bar higher pressure than the water pump. It is preferably equipped with a peripheral rotor. An admixing regulator known per se can be used as the admixer. Alternatively, however, the admixer has an electronic control device with corresponding sensors and control valves.

Man erreicht dadurch eine sehr kompakte Bauweise mit niedri­gen Kosten und vermeidet den Regelaufwand der Schaummittel­pumpe. Die Verohrung kann relativ einfach erfolgen. Eine er­findungsgemäße Zumischung ersetzt sogar bisher bekannte Vormischeinrichtungen.This results in a very compact design with low costs and avoids the control effort of the foam pump. The piping can be done relatively easily. An admixture according to the invention even replaces previously known premixing devices.

Gemäß der Erfindung wird also das Problem gelöst, indem man die Schaummittelpumpe und die Feuerlöschkreiselpumpe in einer Tandem-Bauweise durch den Fahrzeugmotor antreibt. Dabei kann die Schaummittelpumpe irgendwo im Gelenkwellen­strang zur Wasserpumpe untergebracht werden oder direkt in Kompaktbauweise an der Wasserpumpe. Wenn vom Maschinisten die Förderleistung der Wasserpumpe herauf- oder herunterge­regelt wird, geht in jedem Fall mit der Drehzahländerung paral­lel zum Wasserdruck auch der Schaummitteldruck herauf oder herunter.According to the invention, the problem is solved by driving the foam pump and the fire-fighting centrifugal pump in a tandem design by the vehicle engine. The foam compound pump can be accommodated anywhere in the propeller shaft to the water pump or directly in a compact design on the water pump. If the machine operator regulates the delivery rate of the water pump, the foam medium pressure also rises or falls as the speed changes in parallel with the water pressure.

Aus DE-PS 1 023 675 ist es bekannt, Wasserpumpe und Schaum­mittelpumpe über ein Verteilergetriebe anzutreiben. Ein derartiger Antrieb ist vergleichsweise aufwendig und inkom­pakt.From DE-PS 1 023 675 it is known to drive the water pump and foam pump via a transfer case. Such a drive is comparatively complex and incompatible.

Die Erfindung wird nachfolgend anhand von Ausführungsbei­spielen unter Bezugnahme auf die beigefügte Zeichnung ver­gleichsweise zum Stand der Technik näher beschrieben; es zeigen:

  • Fig. 1 das grundsätzliche Anordnungsprinzip einer erfin­dungsgemäßen Kraftfahrzeug-Schaumlöscheinheit,
  • Fig. 2 eine Schaumlöscheinheit nach Fig. 1 mit Anordnung der Wasserpumpe und Schaummittelpumpe auf einem Wellenstrang,
  • Fig. 3 eine Schaumlöscheinheit nach Fig. 1 mit Anordnung der Wasserpumpe und Schaummittelpumpe in Kompakt­bauweise,
  • Fig. 4 eine Schaummittelpumpe in einem schematischen Axial­schnitt,
  • Fig. 5 die Schaummittelpumpe nach Fig. 4 in einem Quer­schnitt mit den Anschlußaggregaten, und
  • Fig. 6 eine der Fig. 1 entsprechende Anordnung einer be­kannten Kraftfahrzeug-Schaumlöscheinheit.
The invention is described below by means of embodiments with reference to the accompanying drawings in comparison to the prior art; show it:
  • 1 shows the basic arrangement principle of a motor vehicle foam extinguishing unit according to the invention,
  • 2 shows a foam extinguishing unit according to FIG. 1 with arrangement of the water pump and foam agent pump on a shaft train,
  • 3 shows a foam extinguishing unit according to FIG. 1 with arrangement of the water pump and foam agent pump in a compact design,
  • 4 a foam agent pump in a schematic axial section,
  • Fig. 5, the foam pump according to Fig. 4 in a cross section with the connection units, and
  • FIG. 6 shows an arrangement of a known motor vehicle foam extinguishing unit corresponding to FIG. 1.

Nach den Fig. 1 bis 5 umfaßt eine Schaumlöscheinheit (1) eines Kraftfahrzeugs, insbesondere Feuerwehrfahrzeugs,einen Wasserbehälter (2), eine nachgeordnete Wasserpumpe (4), dessen Saugrohranschluß mit dem Wasserbehälter (2) verbun­den ist. Der Druckanschluß der Wasserpumpe (4) führt über einen Spritzschlauch oder ein Spritzrohr (5) zur Verwendungs­stelle, wobei ein Zumischer (8) zwischengeordnet ist.According to FIGS. 1 to 5, a foam extinguishing unit (1) of a motor vehicle, in particular a fire engine, comprises a water tank (2), a downstream water pump (4), the suction pipe connection of which is connected to the water tank (2). The pressure connection of the water pump (4) leads to the point of use via a spray hose or a spray pipe (5), with an admixer (8) being interposed.

Ferner umfaßt die Schaumlöscheinheit (1) eine Schaummittel­pumpe (7), deren Sauganschluß mit einem Schaummittelbehäl­ter (6) in Verbindung steht und deren Druckanschluß an den Zumischer (8) angeschlossen ist, um Schaummittel dem Wasser in geeigneter geregelter Weise zuzumischen, so daß ein Schaum entsteht, welcher letztlich verspritzt wird, um einen Brand oder dergl. zu löschen.Furthermore, the foam extinguishing unit (1) comprises a foam agent pump (7), the suction connection of which is connected to a foam agent container (6) and the pressure connection of which is connected to the admixer (8) in order to mix foam agent into the water in a suitable, controlled manner, so that a foam arises, which is ultimately sprayed to extinguish a fire or the like.

Wasserpumpe (4) und Schaummittelpumpe (7) werden im Betrieb vom gleichen Motor (3) angetrieben, der der Antriebsmotor des Kraftfahrzeugs ist. Wasserpumpe (4) und Schaummittel­pumpe (7) laufen hierbei gemäß Ausführungsbeispiel nach Fig. 2 voneinander beabstandet auf einem Wellenstrang (10) oder auf einer kurzen Welle (9) gemäß Fig. 3 in einer Kom­paktbauweise. Wellenstrang (10) und Welle (9) sind über eine Kardanwelle mit der Abtriebsseite des Motors (3) verbun­den.In operation, the water pump (4) and foam compound pump (7) are driven by the same motor (3) that is the drive motor of the motor vehicle. According to the exemplary embodiment according to FIG. 2, the water pump (4) and foam compound pump (7) run at a distance from each other on a shaft assembly (10) or on a short shaft (9) according to FIG. 3 in a compact design. The shaft train (10) and shaft (9) are connected to the output side of the motor (3) via a cardan shaft.

Nach den Ausführungsbeispielen der Fig. 2 und 3 ist der Schaummittelbehälter (6) integriert mit dem Wasserbehälter (2) ausgebildet. Die Lage des Schaummittelbehälters (6) im Wasserbehälter (2) wird bestimmt durch die Lage der Schaum­mittelpumpe (7) im Antriebsstrang. Insbesondere ist die Lage des Schaummittelbehälters (6) so gewählt, daß sich eine kurze Schaummittelverrohrung zur Saugseite der Schaummittelpumpe (7) ergibt.According to the exemplary embodiments in FIGS. 2 and 3, the foam agent container (6) is designed to be integrated with the water container (2). The position of the foam compound container (6) in the water container (2) is determined by the position of the foam compound pump (7) in the drive train. In particular, the position of the foam agent container (6) is selected so that there is a short foam agent piping to the suction side of the foam agent pump (7).

Die Schaummittelpumpe (7) ist gemäß den Fig. 4 und 5 mit ei­nem sog. Peripheralläufer (11) ausgebildet.The foam agent pump (7) is designed according to FIGS. 4 and 5 with a so-called peripheral rotor (11).

Die Prinzipskizze einer Kraftfahrzeug-Schaumlöscheinheit nach dem Stand der Technik ist in Fig. 6 gezeigt. Im Ver­gleich zur erfindungsgemäßen Schaumlöscheinheit (1) nach Fig. 1 ergibt sich beim Stand der Technik ein zusätzlicher Druckmesser (12) auf der Druckseite der Wasserpumpe vor dem Zumischer (8) sowie ein weiterer Druckmesser (13) auf der Druckseite der Schaummittelpumpe (7). Beide Drücke wer­den im Regler (14) verglichen und der Druck des Druckmes­sers (13) über einen die Schaummittelpumpe (7) separat an­treibenden Motor (15) in einer Weise nachgeregelt, daß der abgegebene Schaummitteldruck größer ist als der Wasserpumpen­druck. Ersichtlich entfallen bei der Erfindung die nach dem Stand der Technik vorgesehenen Aggregate (12, 13, 14, 15) so­wie Antriebswelle (16) zwischen Motor (15) und Schaummittel­pumpe (7).The basic sketch of a motor vehicle foam extinguishing unit according to the prior art is shown in FIG. 6. In comparison with the foam extinguishing unit according to the invention (1) according to FIG. 1, there is an additional one in the prior art Pressure gauge (12) on the pressure side of the water pump in front of the admixer (8) and another pressure gauge (13) on the pressure side of the foam compound pump (7). Both pressures are compared in the controller (14) and the pressure of the pressure gauge (13) is adjusted by a motor (15) which separately drives the foam agent pump (7) in such a way that the foam agent pressure delivered is greater than the water pump pressure. The assemblies (12, 13, 14, 15) and drive shaft (16) between the motor (15) and foam pump (7) provided according to the prior art are clearly omitted in the invention.

Alle in der Beschreibung erwähnten und/oder in der Zeichnung dargestellten neuen Merkmale allein oder in sinnvoller Kombi­nation sind erfindungswesentlich, auch soweit sie in den An­sprüchen nicht ausdrücklich beansprucht sind.All new features mentioned in the description and / or shown in the drawing, alone or in a meaningful combination, are essential to the invention, even if they are not expressly claimed in the claims.

Claims (8)

1. Kraftfahrzeug-Schaumlöscheinheit (1) mit Wasserbehälter (2), kraftfahrzeugmotorgetriebener Wasserpumpe (4) und Druckausgang als Schlauch oder Rohr (5), sowie mit einem Schaummittelbehälter (6), einer Schaummittelpumpe (7) und einem Zumischer (8) zum Druckausgang (5),
dadurch gekennzeichnet,
daß Wasserpumpe (4) und Schaummittelpumpe (7) in kompak­ter Zuordnung zueinander auf einer kraftfahrzeugmotor­getriebenen Welle (9) oder voneinander beabstandet auf einem kraftfahrzeugmotorgetriebenen Wellenstrang (10) laufen bzw. angetrieben sind.1. Motor vehicle foam extinguishing unit (1) with water tank (2), motor vehicle-driven water pump (4) and pressure outlet as a hose or pipe (5), as well as with a foam agent tank (6), a foam agent pump (7) and a proportioner (8) for the pressure outlet (5),
characterized,
that water pump (4) and foam agent pump (7) run or are driven in compact association with one another on a motor-vehicle-driven shaft (9) or at a distance from one another on a motor-vehicle-driven shaft train (10). 2. Schaumlöscheinheit nach Anspruch 1,
dadurch gekennzeichnet,
daß die Schaummittelpumpe (7) für einen höheren Pumpen­druck ausgelegt ist als die Wasser pumpe (4).2. foam extinguishing unit according to claim 1,
characterized,
that the foam compound pump (7) is designed for a higher pump pressure than the water pump (4). 3. Schaumlöscheinheit nach Anspruch 2,
dadurch gekennzeichnet,
daß die Schaummittelpumpe (7) einen ca. vier bar höheren Druck als die Wasserpumpe (4) abgibt.3. foam extinguishing unit according to claim 2,
characterized,
that the foam agent pump (7) emits an approximately four bar higher pressure than the water pump (4). 4. Schaumlöscheinheit nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß die Schaummittelpumpe (7) einen Peripheralläufer (11) aufweist.4. foam extinguishing unit according to one of claims 1 to 3,
characterized,
that the foam agent pump (7) has a peripheral rotor (11). 5. Schaumlöscheinheit nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß der Zumischer (8) ein an sich bekannter Zumischreg­ler ist.5. foam extinguishing unit according to one of claims 1 to 4,
characterized,
that the proportioner (8) is a known proportioning regulator. 6. Schaumlöscheinheit nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß der Zumischer (8) eine elektronische Regeleinrich­tung mit entsprechenden Meßwertgebern und Regelventilen aufweist.6. foam extinguishing unit according to one of claims 1 to 4,
characterized,
that the admixer (8) has an electronic control device with corresponding sensors and control valves. 7. Schaumlöscheinheit nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
daß der Schaummittelbehälter (6) im Wasserbehälter (2) integriert angeordnet ist.7. foam extinguishing unit according to one of claims 1 to 6,
characterized,
that the foam agent container (6) in the water container (2) is arranged integrated. 8. Schaumlöscheinheit nach Anspruch 7,
dadurch gekennzeichnet,
daß die Lage des Schaummittelbehälters (6) im Wasserbe­hälter (2) durch die Anordnung der Schaummittelpumpe (7) auf der Welle (9) bzw. am Wellenstrang (10) festge­legt ist und eine kurze Verrohrung ergibt.8. foam extinguishing unit according to claim 7,
characterized,
that the position of the foam agent container (6) in the water container (2) is determined by the arrangement of the foam agent pump (7) on the shaft (9) or on the shaft train (10) and results in a short piping.
EP89106134A 1988-04-15 1989-04-07 Foam extinguishing unit for fire engines Expired - Lifetime EP0337306B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89106134T ATE75153T1 (en) 1988-04-15 1989-04-07 AUTOMOTIVE FOAM EXTINGUISHING UNIT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3812535A DE3812535A1 (en) 1988-04-15 1988-04-15 MOTOR VEHICLE FOAM EXHAUST
DE3812535 1988-04-15

Publications (3)

Publication Number Publication Date
EP0337306A1 true EP0337306A1 (en) 1989-10-18
EP0337306B1 EP0337306B1 (en) 1992-04-22
EP0337306B2 EP0337306B2 (en) 1997-10-08

Family

ID=6352041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89106134A Expired - Lifetime EP0337306B2 (en) 1988-04-15 1989-04-07 Foam extinguishing unit for fire engines

Country Status (3)

Country Link
EP (1) EP0337306B2 (en)
AT (1) ATE75153T1 (en)
DE (2) DE3812535A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1726333A1 (en) * 2005-05-25 2006-11-29 Unisantis Europe GmbH Fluid delivery system for fire-fighting apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115158A (en) * 1962-03-01 1963-12-24 Sterling Prec Corp Airfoam liquid proportioning system
FR2334379A1 (en) * 1975-12-13 1977-07-08 Albach & Co MIXING DEVICE FOR A FOAM EXTINGUISHER
US4157733A (en) * 1977-08-01 1979-06-12 Emergency One, Inc. Dual pump system for fire fighting vehicles
US4337830A (en) * 1978-05-03 1982-07-06 Hale Fire Pump Company Pump assembly
DE3038334A1 (en) * 1980-10-10 1982-10-21 Albert Ziegler Gmbh & Co Kg, 7928 Giengen Foam-generating agent feed for fire engine - has measuring point in water line prior to foam agent entry into water line
US4448256A (en) * 1982-01-28 1984-05-15 Hale Fire Pump Company Foam liquid proportioner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115158A (en) * 1962-03-01 1963-12-24 Sterling Prec Corp Airfoam liquid proportioning system
FR2334379A1 (en) * 1975-12-13 1977-07-08 Albach & Co MIXING DEVICE FOR A FOAM EXTINGUISHER
US4157733A (en) * 1977-08-01 1979-06-12 Emergency One, Inc. Dual pump system for fire fighting vehicles
US4337830A (en) * 1978-05-03 1982-07-06 Hale Fire Pump Company Pump assembly
DE3038334A1 (en) * 1980-10-10 1982-10-21 Albert Ziegler Gmbh & Co Kg, 7928 Giengen Foam-generating agent feed for fire engine - has measuring point in water line prior to foam agent entry into water line
US4448256A (en) * 1982-01-28 1984-05-15 Hale Fire Pump Company Foam liquid proportioner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1726333A1 (en) * 2005-05-25 2006-11-29 Unisantis Europe GmbH Fluid delivery system for fire-fighting apparatus

Also Published As

Publication number Publication date
DE3812535A1 (en) 1989-10-26
EP0337306B2 (en) 1997-10-08
DE58901218D1 (en) 1992-05-27
ATE75153T1 (en) 1992-05-15
EP0337306B1 (en) 1992-04-22

Similar Documents

Publication Publication Date Title
DE2519152C2 (en) Device for starting aircraft engines and operating aircraft auxiliary devices
DE4317467A1 (en) Vibration-damping arrangement of a hydraulic unit of a slip-controlled brake system
DE2736153B2 (en) Filter and mixing device for mixing lubricating oil and fuel
EP0104343A1 (en) Fluid flow machine with adjustable blades
DE2024125A1 (en) Combined auxiliary worker and engine turning system
DE1555198A1 (en) Hydrostatic steering system
EP0337306B1 (en) Foam extinguishing unit for fire engines
DE112012005709T5 (en) Power steering apparatus
DE2649558A1 (en) DRIVE UNIT WITH SEVERAL COUPLED COMPRESSED AIR MOTORS
DE1155347B (en) Control device for the fuel control device in the prime mover for motor vehicles with single axle drive
DE202015101402U1 (en) Cooling module for providing a cooling air flow in the region of a constant velocity joint
DE3131522C2 (en)
DE2748918A1 (en) Compact drive for extruder with conical twin screws - has worm-gear normal to axial plane of screws, to allow operating at low rotational speed
DE3240179A1 (en) Fluid clutch
DE677750C (en) Braking device for rail vehicles
DE4031969C2 (en) Dual-circuit steering system for motor vehicles
DE2540073A1 (en) HYDRAULIC SYSTEM FOR STORING THE BRAKING ENERGY OF A VEHICLE
EP0638333A1 (en) Mechanically and electronically controlled foam mixing system at the pump pressure side with foam pump and emergency operation
EP0012450A1 (en) Overspeed preventing device for a fuel injection combustion engine
DE811891C (en) Arrangement for speed control of internal combustion turbine systems
DE1299167C2 (en) Regulator for drive devices of motor vehicles consisting of an internal combustion engine and a hydrostatic transmission
DE2433990A1 (en) DIFFERENTIAL GEARS IN PARTICULAR FOR LOCOMOTIVES
DE1780705C3 (en) Power steering devices, in particular for motor vehicles
CH370369A (en) Pressure medium system with a pump serving to supply several motors
EP0759371A3 (en) Hydrostatic drive for vehicle auxiliry units

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE FR GB IT LI

17P Request for examination filed

Effective date: 19900319

17Q First examination report despatched

Effective date: 19911008

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB IT LI

REF Corresponds to:

Ref document number: 75153

Country of ref document: AT

Date of ref document: 19920515

Kind code of ref document: T

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 58901218

Country of ref document: DE

Date of ref document: 19920527

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: ALBERT ZIEGLER GMBH

Effective date: 19930107

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19971008

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT CH DE FR GB IT LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: AEN

Free format text: AUFRECHTERHALTUNG DES PATENTES IN GEAENDERTER FORM

ITF It: translation for a ep patent filed
GBTA Gb: translation of amended ep patent filed (gb section 77(6)(b)/1977)

Effective date: 19971231

ET3 Fr: translation filed ** decision concerning opposition
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20040407

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20040421

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20040426

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040429

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040527

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050407

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050407

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050407

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051101

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050407

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051230

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20051230