DE854892C - Vent pump for centrifugal pumps, especially for fire extinguishing purposes - Google Patents

Vent pump for centrifugal pumps, especially for fire extinguishing purposes

Info

Publication number
DE854892C
DE854892C DEP37708A DEP0037708A DE854892C DE 854892 C DE854892 C DE 854892C DE P37708 A DEP37708 A DE P37708A DE P0037708 A DEP0037708 A DE P0037708A DE 854892 C DE854892 C DE 854892C
Authority
DE
Germany
Prior art keywords
pump
ring body
axis
centrifugal pumps
rollers
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.)
Expired
Application number
DEP37708A
Other languages
German (de)
Inventor
Josef Schellerer
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 DEP37708A priority Critical patent/DE854892C/en
Application granted granted Critical
Publication of DE854892C publication Critical patent/DE854892C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/04Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B27/0404Details, component parts specially adapted for such pumps
    • F04B27/0451Particularities relating to the distribution members
    • F04B27/0465Particularities relating to the distribution members to plate like distribution members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/04Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B27/0404Details, component parts specially adapted for such pumps
    • F04B27/0442Supporting and guiding means for the pistons
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/04Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B27/06Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary
    • F04B27/0606Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary having cylinders in star- or fan-arrangement, the connection of the pistons with an actuating element being at the outer ends of the cylinders
    • F04B27/0612Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary having cylinders in star- or fan-arrangement, the connection of the pistons with an actuating element being at the outer ends of the cylinders rotary cylinder block
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00Priming; Preventing vapour lock
    • F04D9/04Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
    • F04D9/041Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock the priming pump having evacuating action

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

Entlüftungspumpe für Kreiselpumpen, insbesondere für Feuerlöschzwecke Die Erfindung betrifft eine Entlüftungspumpe für Kreiselpumpen, insbesondere für solche Kreiselpumpen, wie sie im Feuerlöschwesen bei Kraftspritzen Verwendung finden.Ventilation pumps for centrifugal pumps, in particular for fire extinguishing purposes The invention relates to a ventilation pump for centrifugal pumps, in particular for such centrifugal pumps as they are used in fire extinguishing systems for power injectors.

Entlüftungspumpen dienen dazu, bei Inbetriebnahme der Pumpe die in der Pumpe und der Saugleitung befindliche Luft zu entfernen. Solche Entlüftungspumpen sind an sich bekannt. Bei den bekannten Entlüftungspumpen älterer Bauart wird die Saugwirkung durch schieberartige Schaufelräder hervorgerufen. die durch Zentrifugalkraft gegen die Innenwand des Pumpengehäuses geschleudert werden. Hierbei tritt ein starker Reibungswiderstand auf, der zu hohem Materialverschleiß und zu Kraftverlusten führt. Man hat auch schon vorgeschlagen, in den zylinderartigen Ausnehmungen eines sternförmig ausgebildeten Rades Zylinderwalzen, die leichter sind als Wasser, zu lagern. die ebenfalls durch Zentrifugalkraft gegen die Innenwand des Pumpengehätises geschleudert werden, wodurch die gewünschte Saug- und Druckwirkung erzeugt wird. Bei dieser Bauart ist die Abdichtung zwischen Zylinderwalzen und Zylinderwand schwierig, da die leiden Bauteile sich nur linear berühren.Purge pumps are used when the pump is started up, the in to remove air from the pump and suction line. Such priming pumps are known per se. In the known ventilation pumps of the older type, the Suction caused by slide-like paddle wheels. those by centrifugal force be thrown against the inner wall of the pump housing. Here comes a strong one Frictional resistance, which leads to high material wear and loss of power. It has also already been proposed that a star-shaped shape be installed in the cylinder-like recesses trained wheel to store cylindrical rollers, which are lighter than water. the also thrown by centrifugal force against the inner wall of the pump housing creating the desired suction and pressure effect. With this type of construction the seal between cylinder rollers and cylinder wall is difficult because they suffer Components only touch each other linearly.

Demgegenüber besteht bei der vorliegenden Pumpe das Wesentliche der Erfindung darin, die Reibung zwischen Pumpenrad und Pumpengehäuse auf ein Mindestmaß herabzusetzen und die zur Erzeugung einer guten Saug- und Druckwirkung erforderliche Dichtung zwischen den Baugliedern der Pumpe zu erhöhen.In contrast, there is the essence of the present pump Invention is the friction between the pump impeller and pump housing to a minimum reduce and the necessary to generate a good suction and pressure effect poetry increase between the components of the pump.

Dies wird erfindungsgemäß dadurch erreicht, daß ein mit der Antriebswelle gekuppelter und parallelachsigeNuten aufweisenderRingkörpermit ebenfalls umlaufenden Schiebern in den Nuten zusammenarbeitet, die durch exzentrisch zur Antriebswelle angeordnete Steuerscheiben gesteuert sind. Dabei sind die Schieber gegenüber der Innenwand des Pumpengehäuses mit geringem Spiel geführt. Durch die Führung der Schieber in den Nuten des Ringkörpers und durch die Führung der Schieber mit geringem Spiel gegenüber der Gehäuseinnenwand wird eine gute Flächendichtung und nur ein nicht mehr ins Gewicht fallender, geringer Reibungsverlust erreicht.This is achieved according to the invention in that a with the drive shaft Coupled ring body with parallel-axis grooves with also circumferential Slides in the grooves cooperate through eccentric to the drive shaft arranged control discs are controlled. The slides are opposite the Inner wall of the pump housing out with little play. By guiding the slide in the grooves of the ring body and by guiding the slide with little play there is a good surface seal against the inside wall of the housing and only one is not more significant, lower friction loss is achieved.

Die Achse der Steuerscheiben und die Achse des Ringkörpers sind um eire gewisses Maß gegeneinander versetzt. Dadurch wird erreicht, daß die mitumlaufenden Schieber in den Nuten des Ringkörpers radial verschoben werden, wodurch in den Nuten des Ringkörpers wechselnd Verdünnungen und Verdichtungen entstehen.The axis of the control discs and the axis of the ring body are around eire offset against each other to a certain extent. This ensures that the circulating Slide in the grooves of the ring body are moved radially, whereby in the grooves of the ring body alternating thinning and thinning.

Um die Reibung zwischen den feststehenden und umlaufenden Pumpenteilen auf ein. Mindestmaß herabzudrücken, sind an den umlaufenden Schiebern Laufrollen vorgesehen, die auf den feststehenden Steuerscheiben abrollen.About the friction between the stationary and rotating pump parts to a. The minimum amount to be pressed down is provided by rollers on the circumferential slides provided that roll on the fixed control discs.

Seitlich des umlaufenden Ringkörpers sind sichelförmige Saug- bzw. Druckkanäle vorgesehen, an denen die Nuten des Ringkörpers vorbeilaufen. Die Länge, Querschnittsform und -fläche der Saug- bzw. Druckkanäle richtet sich nach der geforderten Pumpenleistung.On the side of the circumferential ring body there are sickle-shaped suction or Pressure channels provided through which the grooves of the ring body run past. The length, The cross-sectional shape and area of the suction and pressure channels depends on the required Pump performance.

Die Pumpe kann als selbständige Entlüftungspumpe für Kreiselpumpen verwendet und auch der Kreiselpumpe vorgeschaltet werden. Man kann sie aber auch als reinen Luftverdichter für alle möglichen Zwecke verwenden.The pump can be used as an independent venting pump for centrifugal pumps and can also be connected upstream of the centrifugal pump. But you can also use as a pure air compressor for all possible purposes.

In der Zeichnung ist die Erfindung an einem Ausführungsbeispiel dargestellt, und zwar zeigt Abb. i einen lotrechten Längsschnitt durch die Pumpe und Abb. 2 einen lotrechten Querschnitt durch die Pumpe.In the drawing, the invention is shown in an exemplary embodiment, namely Fig. i shows a vertical longitudinal section through the pump and Fig. 2 shows a perpendicular cross-section through the pump.

Auf der Antriebsachse 8 (Abb. i), aufgekeilt sitzt der trommelartige Ringkörper 3, der mit den Nuten lo für die Schieber 6 versehen ist. Die Schieber 6 sind mit auf Bolzen i i laufenden Rollen 7 versehen. Die Rollen 7 laufen auf Steuerscheiben 5, die zentrisch zu der Achse 2-2 am Gehäuse i befestigt sind. Die Achse 4-4 des Ringkörpers 3 und die Achse 2-2 der Steuerscheiben 5 sind um das Maß a gegeneinander versetzt. Die Schieber 6 werden durch die Rollen 7 und die Steuerscheiben 5 so gesteuert, daß sie gegenüber der Innenwand des Gehäuses i stets Luft haben. Beim Drehen im Uhrzeigersinn befindet sich im rechten Teil der Abb. i die Saugseite und im linken Teil die Druckseite. Seitlich zu den Arbeitsräumen io verlaufen die in den Steuerscheiben 5 angeordneten Saug- bzw. Druckkanäle 9.The drum-like seat sits wedged on the drive shaft 8 (Fig. I) Annular body 3, which is provided with the grooves lo for the slide 6. The slider 6 are provided with rollers 7 running on bolts i i. The rollers 7 run on control disks 5, which are attached to the housing i centrically to the axis 2-2. The axis 4-4 of the Annular body 3 and the axis 2-2 of the control disks 5 are against each other by the dimension a offset. The slides 6 are controlled by the rollers 7 and the control disks 5 so that that they always have air against the inner wall of the housing i. When turning in Clockwise in the right part of Fig. I is the suction side and in the left Part the print side. Laterally to the working spaces io they run in the control disks 5 arranged suction or pressure channels 9.

Claims (6)

PATENTANSPRÜCHE: i. Entlüftungspumpe für Kreiselpumpen, insbesondere für Feuerlöschzwecke, dadurch gekennzeichnet, daß ein mit der Antriebswelle (8) gekuppelter zylindrischer Ringkörper (3) parallelachsige über seinen Umfang gleichmäßig verteilte Nuten aufweist, in denen mitumlaufende Schieber, die durch Steuerscheiben in radialer Richtung bewegt werden, kolbenartig arbeiten. PATENT CLAIMS: i. Ventilation pump for centrifugal pumps, in particular for fire-fighting purposes, characterized in that a cylindrical ring body (3) coupled to the drive shaft (8) has parallel-axis grooves evenly distributed over its circumference, in which rotating slides, which are moved in the radial direction by control disks, work piston-like . 2. Entlüftungspumpe ach Anspruch i, dadurch gekennzeichnet, daß die Achse (4-4) des Ringkörpers (3) zur parallelen Achse (2-2) der Steuerscheiben (5) exzentrisch ist. 2. priming pump ach Claim i, characterized in that the axis (4-4) of the ring body (3) to parallel axis (2-2) of the control discs (5) is eccentric. 3. Entlüftungspumpe nach Anspruch i und 2, dadurch gekennzeichnet, daß an den Schiebern (6) Laufrollen (7) befestigt sind, die auf den Steuerscheiben (5) abrollen. 3. Prime pump according to claims 1 and 2, characterized in that rollers on the slides (6) (7) that roll on the control discs (5). 4. Entlüftungspumpe nach Anspruch i bis 3, dadurch gekennzeichnet, daß die Schieber (6) mit dem Ringkörper (3) umlaufen, während die Steuerscheiben (5) feststehen. 4. Prime pump according to claims i to 3, characterized in that the slide (6) with the ring body (3) rotate while the control disks (5) are stationary. 5. Entlüftungspumpe nach Anspruch i bis 4, dadurch gekennzeichnet, daß seitlich des umlaufenden Ringkörpers (3) sichelförmige Saug-bzw. Druckkanäle (g) in den feststehenden Steuerscheiben (5) angeordnet sind, an denen die Nuten (lo) des Ringkörpers (3) vorbeilaufen. 5. Prime pump after Claims i to 4, characterized in that the side of the circumferential ring body (3) sickle-shaped suction or Pressure channels (g) in the fixed control disks (5) are arranged, on which the grooves (lo) of the ring body (3) run past. 6. Entlüftungspumpe nach Anspruch i bis 5, dadurch gekennzeichnet, daß die Schieber (6) durch die Laufrollen (7) gegenüber der Innenwand des zylindrischen Pumpengehäuses (i) mit geringem Spiel geführt sind.6th Ventilation pump according to Claims 1 to 5, characterized in that the slide (6) through the rollers (7) opposite the inner wall of the cylindrical pump housing (i) are managed with little play.
DEP37708A 1949-03-25 1949-03-25 Vent pump for centrifugal pumps, especially for fire extinguishing purposes Expired DE854892C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP37708A DE854892C (en) 1949-03-25 1949-03-25 Vent pump for centrifugal pumps, especially for fire extinguishing purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP37708A DE854892C (en) 1949-03-25 1949-03-25 Vent pump for centrifugal pumps, especially for fire extinguishing purposes

Publications (1)

Publication Number Publication Date
DE854892C true DE854892C (en) 1952-11-06

Family

ID=7375443

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP37708A Expired DE854892C (en) 1949-03-25 1949-03-25 Vent pump for centrifugal pumps, especially for fire extinguishing purposes

Country Status (1)

Country Link
DE (1) DE854892C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173378A (en) * 1960-12-02 1965-03-16 Gen Gas Light Co Mechanical energy transducing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173378A (en) * 1960-12-02 1965-03-16 Gen Gas Light Co Mechanical energy transducing device

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