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WO2000068577A1 - Side channel machine - Google Patents

Side channel machine Download PDF

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Publication number
WO2000068577A1
WO2000068577A1 PCT/DE2000/001379 DE0001379W WO0068577A1 WO 2000068577 A1 WO2000068577 A1 WO 2000068577A1 DE 0001379 W DE0001379 W DE 0001379W WO 0068577 A1 WO0068577 A1 WO 0068577A1
Authority
WO
WIPO (PCT)
Prior art keywords
side channel
contour
channel machine
housing
gap
Prior art date
Application number
PCT/DE2000/001379
Other languages
German (de)
French (fr)
Inventor
Mario Kempf
Walter Baumeister
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to KR1020017014321A priority Critical patent/KR20020008183A/en
Priority to JP2000617332A priority patent/JP2002544428A/en
Priority to EP00936659A priority patent/EP1177384A1/en
Publication of WO2000068577A1 publication Critical patent/WO2000068577A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D23/00—Other rotary non-positive-displacement pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D23/00—Other rotary non-positive-displacement pumps
    • F04D23/008—Regenerative pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/083—Sealings especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/086—Sealings especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/188—Rotors specially for regenerative pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D5/00—Pumps with circumferential or transverse flow

Definitions

  • the invention relates to a side channel machine.
  • a side channel compressor is known from DE-A 22 44 933, in which a band is inserted into an annular groove provided in the housing and extends against the end face of the support ring.
  • the band is aligned in the ring groove in such a way that the smallest possible gap between the end face of the support ring and the end of the band projecting from the ring groove results. This is intended to keep the so-called gap losses as small as possible.
  • the disadvantage here is that the manufacture of such a sealing device is very complex. Aligning the tape to achieve a uniform and narrow gap creates considerable difficulties. In the circumferential direction of the side channel compressor, a gap remains at the joint between the belt and the support ring, which still leads to pressure losses.
  • a side channel compressor which has a radially extending sealing ring on the inner circumference of the axially projecting part of the support ring, which rests on the axially projecting part of the support ring and by means of a retaining ring against one provided on the housing of the side channel compressor Contact surface is kept clamped.
  • the disadvantage here is the complex production and the large number of parts for realizing such a sealing device.
  • the invention is therefore based on the object of designing a side channel machine in such a way that there is an improved sealing of the side channel and an associated increase in efficiency of the side channel machine with less assembly and production outlay.
  • this object is achieved by a side channel machine with at least one impeller rotatably arranged in its housing, which has a support ring which is equipped with conveyor blades and which projects axially at least on one side with respect to the impeller axis with a hub part supporting it and connecting it with a drive shaft , at least in the area of the support ring between the impeller and the housing existing gap at least one edge-forming contour is provided, which serves to seal this gap, the contour being worked into the housing and / or the support ring.
  • the arrangement according to the invention of such a contour in the area of the gap creates a powerful and long-term stable sealing device.
  • An advantage here is that no additional parts have to be used, fixed and assembled to produce such a sealing device. This reduces the assembly time and the cost of storage for such sealing devices.
  • tests have shown an almost temperature-independent gap seal.
  • the same coefficients of expansion are present, and thus, regardless of the operating time of the side channel machine, a sealing system which ensures a long-term stable characteristic of the side channel machine during its operating time. An unwanted change in the working point of the side channel machine with increasing operating time is thus almost impossible, since there are no friction effects between the components forming the sealing device.
  • the contour continues essentially in the circumferential direction of the side channel machine.
  • the contour advantageously has a rectangular, trapezoidal and / or triangular shape.
  • the shape of the contour depends, among other things, on the selected manufacturing process, the media to be conveyed and the material of the housing and / or support ring.
  • the contour itself has a step-like course on the housing or on the support ring.
  • the contour on the housing and / or support ring is advantageously placed where production is particularly simple and can be carried out with little effort and where the sealing effect is best developed.
  • the housing of a double-flow side channel machine according to FIG. 1 is essentially formed by two housing halves 1, 2.
  • the housing halves 1 and 2 enclose an impeller 4 which is arranged on a drive shaft, not shown in the drawing.
  • the impeller 4 has on its outer circumference a support ring 5 on which the conveyor blades 6 of the impeller 4 are arranged.
  • the support ring 5 is arranged in a hub part which is plugged onto the drive shaft and is connected to it in a rotationally fixed manner and not shown in detail. Between the support ring 5 and one of the housing halves 1 or 2 there is a gap 3 which leads to gap losses and which must be sealed during operation.
  • each a corner recess X, Y is provided on the end face, in which there is advantageously a circumferential contour of the support ring and / or housing.
  • the contours are easy to produce, particularly in these corner cut-outs, by turning or milling.
  • FIG. 2 to FIG. 6 show possibilities for forming such contours 7 with an essentially rectangular course.
  • the contour 7 can also have a triangular or trapezoidal shape. Any combination of these contours 7 is also possible. It is crucial, however, that edges form in the area of this gap 3, so that the effect of a labyrinth seal is established.
  • a contour with a radius of approximately 0.5 mm or less is already defined as the edge, with a “sharper” edge resulting in a comparatively better sealing effect.
  • FIG. 7 and FIG. 8 show, in principle, stair-shaped contours 7, which essentially represent a repetition of a previously existing contour course and thus reinforce the labyrinth sealing effect.
  • FIG. 9 and FIG. 10 show further contour designs which, however, also serve to seal the gap 3 like the contour profiles described above.
  • Figures 3 and 5 are particularly suitable for different materials of the housing and the support ring 5, as with different coefficients of expansion (particularly housing effectively ⁇ ragring ⁇ ) on the basis of the clear width of the wound gap 3 in addition to the labyrinth seal effect a frictional contact of a housing half 1, 2 with the Support ring 5 is also avoided during longer operating times of the side channel machine.
  • No additional sealing elements have to be introduced and fixed in the gap 3 during the assembly or maintenance work.
  • Even during operation of the side channel machine there is a more than adequate sealing effect, since the thermal expansion coefficients of the materials of the housing halves 1, 2 and support ring 5 are almost identical. With identical materials, the expansion coefficients are the same and the sealing effect is improved again.

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

Abstract

The aim of the invention is to improve the efficiency of a side channel machine which, at the same time, is easier to produce and assemble. A side channel machine with at least one running wheel (4) that is rotationally mounted in the housing (1, 2) thereof is provided. The running wheel (4) is provided with a supporting ring (5). Conveying blades are mounted on the supporting ring (5) which rises above a hub component at least on a side axial in relation to the running wheel axle, whereby the hub component carries the supporting ring (5) and links the supporting ring (5) to a primary shaft. There is a gap (3) between the running wheel (4) and the housing (1, 2). At least one contour (7) that forms edges is provided at least in the area of the supporting ring (5). Said contour (7) serves for sealing the gap (3) and is incorporated into the housing and/or the supporting ring (5).

Description

Beschreibungdescription
SeitenkanalmaschineSide channel machine
Die Erfindung betrifft eine Seitenkanalmaschine.The invention relates to a side channel machine.
Aus der DE-A 22 44 933 ist ein Seitenkanalverdichter bekannt, bei dem ein Band in eine im Gehäuse vorgesehene Ringnut eingelegt ist, das sich gegen die Stirnseite des Tragringes er- streckt. Das Band wird dabei in der Ringnut derart ausgerichtet, daß sich ein möglichst kleiner Spalt zwischen der Stirnseite des Tragringes und dem aus der Ringnut vorstehenden Ende des Bandes ergibt. Dadurch sollen die sogenannten Spaltverluste möglichst klein gehalten werden. Nachteilig dabei ist, daß die Fertigung einer derartigen Abdichtungsvorrichtung sehr aufwendig ist. Das Ausrichten des Bandes zur Erzielung eines gleichmäßigen und engen Spaltes bereitet dabei erhebliche Schwierigkeiten. In ümfangsrichtung des Seitenkanal- verdichters verbleibt an der Stoßstelle Band - Tragring ein Spalt, der weiterhin zu Druckverlusten führt.A side channel compressor is known from DE-A 22 44 933, in which a band is inserted into an annular groove provided in the housing and extends against the end face of the support ring. The band is aligned in the ring groove in such a way that the smallest possible gap between the end face of the support ring and the end of the band projecting from the ring groove results. This is intended to keep the so-called gap losses as small as possible. The disadvantage here is that the manufacture of such a sealing device is very complex. Aligning the tape to achieve a uniform and narrow gap creates considerable difficulties. In the circumferential direction of the side channel compressor, a gap remains at the joint between the belt and the support ring, which still leads to pressure losses.
Aus der EP 0 708 248 A2 ist ein Seitenkanalverdichter bekannt, der am Innenumfang des axial überstehenden Teiles des Tragringes einen sich radial erstreckenden Dichtungsring auf- weist, der an dem axial überstehenden Teil des Tragringes anliegt und mittels eines Halteringes gegen eine am Gehäuse des Seitenkanalverdichters vorgesehene Anlagefläche eingespannt gehalten ist. Nachteilig dabei ist die aufwendige Fertigung und der große Teileaufwand zur Realisierung einer derartigen Abdichtungsvorrichtung.From EP 0 708 248 A2 a side channel compressor is known which has a radially extending sealing ring on the inner circumference of the axially projecting part of the support ring, which rests on the axially projecting part of the support ring and by means of a retaining ring against one provided on the housing of the side channel compressor Contact surface is kept clamped. The disadvantage here is the complex production and the large number of parts for realizing such a sealing device.
Der Erfindung liegt demnach die Aufgabe zugrunde, eine Seitenkanalmaschine so auszubilden, daß sich eine verbesserte Abdichtung des Seitenkanals und eine damit verbundene Wir- kungsgraderhöhung der Seitenkanalmaschine bei geringerem Montage- und Fertigungsaufwand ergibt. Die Lösung der gestellten Aufgabe gelingt erfindungsgemäß durch eine Seitenkanalmaschine, mit wenigstens einem in seinem Gehäuse drehbar angeordneten Laufrad, das einen mit Förderschaufeln besetzten Tragring aufweist, der ein ihn tragen- des und mit einer Antriebswelle verbindendes Nabenteil zumindest auf eine Seite axial bezüglich der Laufradachse überragt, wobei zumindest im Bereich des Tragringes zwischen dem Laufrad und dem Gehäuse bestehenden Spaltes wenigstens eine kantenbildende Kontur vorgesehen ist, die der Abdichtung die- ses Spaltes dient, wobei die Kontur in das Gehäuse und/oder den Tragring eingearbeitet ist.The invention is therefore based on the object of designing a side channel machine in such a way that there is an improved sealing of the side channel and an associated increase in efficiency of the side channel machine with less assembly and production outlay. According to the invention, this object is achieved by a side channel machine with at least one impeller rotatably arranged in its housing, which has a support ring which is equipped with conveyor blades and which projects axially at least on one side with respect to the impeller axis with a hub part supporting it and connecting it with a drive shaft , at least in the area of the support ring between the impeller and the housing existing gap at least one edge-forming contour is provided, which serves to seal this gap, the contour being worked into the housing and / or the support ring.
Durch die erfindungsgemäße Anordnung einer derartigen Kontur im Bereich des Spaltes, ist eine leistungsfähige und lang- zeitstabile Abdichtungsvorrichtung geschaffen. Ein Vorteil dabei ist, daß zur Herstellung einer derartigen Abdichtungsvorrichtung keine zusätzlichen Teile eingesetzt, fixiert und montiert werden müssen. Somit reduziert sich die Montagezeit als auch der Aufwand der Lagerhaltung für derartige Abdich- tungvorrichtungen. Während des Betriebes der Seitenkanalmaschine, der eine Erwärmung der Komponenten insbesondere des Tragrings und Gehäuses der Seitenkanalmaschine zur Folge hat, ergaben Versuche eine nahezu temperaturunabhängige Spaltabdichtung. Somit liegen insbesondere bei gleichen Materialien von Tragring und Gehäuse gleiche Ausdehnungskoeffizienten vor, und damit unabhängig von der Betriebszeit der Seitenkanalmaschine ein Dichtungssystem, das eine langzeitstabile Kennlinie der Seitenkanalmaschine während ihrer Betriebszeit gewährleistet. Eine ungewollte Veränderung des Arbeitspunktes der Seitenkanalmaschine mit zunehmender Betriebsdauer ist damit nahezu ausgeschlossen, da keine Reibungseffekte zwischen den die Abdichtungsvorrichtung bildenden Komponenten auftreten.The arrangement according to the invention of such a contour in the area of the gap creates a powerful and long-term stable sealing device. An advantage here is that no additional parts have to be used, fixed and assembled to produce such a sealing device. This reduces the assembly time and the cost of storage for such sealing devices. During operation of the side channel machine, which results in heating of the components, in particular the support ring and housing of the side channel machine, tests have shown an almost temperature-independent gap seal. Thus, in particular with the same materials of the support ring and housing, the same coefficients of expansion are present, and thus, regardless of the operating time of the side channel machine, a sealing system which ensures a long-term stable characteristic of the side channel machine during its operating time. An unwanted change in the working point of the side channel machine with increasing operating time is thus almost impossible, since there are no friction effects between the components forming the sealing device.
Um eine wirkungsvolle Abdichtung des Spaltes zu erhalten, setzt sich der Verlauf der Kontur im wesentlich in Umfangs- richtung der Seitenkanalmaschine fort. Die Kontur weist vorteilhafterweise einen rechteckigen, trapezförmigen und/oder dreieckförmigen Verlauf auf. Die Formgebung der Kontur hängt dabei u.a. von dem gewählten Herstelverfahren, den zu förderden Medien als auch vom Material des Gehäuses und/oder Tragrings ab.In order to obtain an effective sealing of the gap, the contour continues essentially in the circumferential direction of the side channel machine. The contour advantageously has a rectangular, trapezoidal and / or triangular shape. The shape of the contour depends, among other things, on the selected manufacturing process, the media to be conveyed and the material of the housing and / or support ring.
Die Kontur selbst, weist in einer anderen vorteilhaften Ausführung am Gehäuse oder am Tragring einen treppenförmigen Verlauf auf.In another advantageous embodiment, the contour itself has a step-like course on the housing or on the support ring.
Die Kontur an Gehäuse und/oder Tragring ist vorteilhafterweise dort plaziert, wo die Herstellung besonders einfach und mit geringem Aufwand zu realisieren ist und sich die Dichtwirkung am besten entfaltet.The contour on the housing and / or support ring is advantageously placed where production is particularly simple and can be carried out with little effort and where the sealing effect is best developed.
Die Erfindung sowie weitere vorteilhafte Ausgestaltungen der Erfindung gemäß Merkmalen der ünteransprüche werden im folgenden anhand schematisch dargestellter Ausführungsbeispiele in der Zeichnung näher erläutert. Dabei zeigen:The invention and further advantageous embodiments of the invention according to the features of the subclaims are explained in more detail below with reference to schematically illustrated exemplary embodiments in the drawing. Show:
FIG 1 einen Teillängsschnitt einer zweiflutigen Seitenkanalmaschine,1 shows a partial longitudinal section of a double-flow side channel machine,
FIG 2 bis FIG 10 Detailausschnitte X und Y der Dichtungsanordnung einer zweiflutigen Seitenkanalmaschine.2 to 10 detailed sections X and Y of the sealing arrangement of a double-flow side channel machine.
Das Gehäuse einer zweiflutigen Seitenkanalmaschine gemäß FIG 1 wird im wesentlichen durch zwei Gehäusehälften 1, 2 gebildet. Die Gehäusehälften 1 und 2 umschließen ein Laufrad 4, das auf einer in der Zeichnung nicht näher dargestellten An- triebswelle angeordnet ist. Das Laufrad 4 weist an seinem Außenumfang einen Tragring 5 auf, an dem die Förderschaufeln 6 des Laufrades 4 angeordnet sind. Der Tragring 5 ist in einem auf der Antriebswelle aufgesteckten und drehfest mit diesem verbundenen, nicht näher dargestellten, Nabenteil angeordnet. Zwischen Tragring 5 und einer der Gehäusehälften 1 oder 2 befindet sich ein Spalt 3, der zu Spaltverlusten führt und den es gilt im Betrieb abzudichten. An dem Tragring 5 ist auf je- der Stirnseite eine Eckaussparung X, Y vorgesehen, in der sich vorteilhafterweise eine in Umfangsrichtung verlaufende Kontur des Tragrings und/oder Gehäuses befindet. Die Konturen sind insbesondere in diesen Eckaussparungen einfach durch Drehen oder Fräsen herzustellen.The housing of a double-flow side channel machine according to FIG. 1 is essentially formed by two housing halves 1, 2. The housing halves 1 and 2 enclose an impeller 4 which is arranged on a drive shaft, not shown in the drawing. The impeller 4 has on its outer circumference a support ring 5 on which the conveyor blades 6 of the impeller 4 are arranged. The support ring 5 is arranged in a hub part which is plugged onto the drive shaft and is connected to it in a rotationally fixed manner and not shown in detail. Between the support ring 5 and one of the housing halves 1 or 2 there is a gap 3 which leads to gap losses and which must be sealed during operation. On the support ring 5 on each a corner recess X, Y is provided on the end face, in which there is advantageously a circumferential contour of the support ring and / or housing. The contours are easy to produce, particularly in these corner cut-outs, by turning or milling.
FIG 2 bis FIG 6 zeigen Möglichkeiten derartige Konturen 7 mit im wesentlichen rechteckigem Verlauf auszubilden. Die Kontur 7 kann ebenso einen dreieckigen oder trapezförmigen Verlauf- aufweisen. Ebenso sind beliebige Kombinationen dieser Konturen 7 möglich. Entscheidend aber ist, daß sich Kanten im Bereich dieses Spaltes 3 ausbilden, so daß sich die Wirkung einer Labyrinthdichtung einstellt. Erfindungsgemäß wird dabei als Kante bereits eine Kontur mit Radius von ca. 0,5 mm oder kleiner definiert, wobei sich mit „schärferer" Kante eine vergleichsmäßig bessere Dichtwirkung einstellt.FIG. 2 to FIG. 6 show possibilities for forming such contours 7 with an essentially rectangular course. The contour 7 can also have a triangular or trapezoidal shape. Any combination of these contours 7 is also possible. It is crucial, however, that edges form in the area of this gap 3, so that the effect of a labyrinth seal is established. According to the invention, a contour with a radius of approximately 0.5 mm or less is already defined as the edge, with a “sharper” edge resulting in a comparatively better sealing effect.
FIG 7 und FIG 8 zeigen im Prinzip treppenförmig angeordnete Konturen 7, die im wesentlichen eine Wiederholung eines vorab bereits vorhandenen Konturenverlaufs darstellen und so die Labyrinthdichtwirkung verstärken.FIG. 7 and FIG. 8 show, in principle, stair-shaped contours 7, which essentially represent a repetition of a previously existing contour course and thus reinforce the labyrinth sealing effect.
FIG 9 und FIG 10 zeigen weiterführende Konturenausbildungen, die aber ebenfalls wie die vorher beschriebenen Konturenver- laufe der Abdichtung des Spaltes 3 dienen.FIG. 9 and FIG. 10 show further contour designs which, however, also serve to seal the gap 3 like the contour profiles described above.
Durch die Gestaltung der Konturen 7 am Tragring 5 und/oder an den Gehäusehälften 1, 2 wird die Montage eines derartigen Seitenkanalverdichters wesentlich vereinfacht.The design of the contours 7 on the support ring 5 and / or on the housing halves 1, 2 simplifies the assembly of such a side channel compressor.
FIG 3 und FIG 5 eignen sich insbesondere für unterschiedliche Materialien von Gehäuse und Tragring 5, da bei unterschiedliche Ausdehnungskoeffizienten (insbesondere ηGehäuse <ητragring) aufgrund der lichten Weite des gewundenen Spaltes 3 außer der Labyrinthdichtwirkung auch ein Reibkontakt einer Gehäusehälfte 1, 2 mit dem Tragring 5 auch bei längeren Betriebszeiten der Seitenkanalmaschine unterbleibt. Es müssen während den Montage- oder Wartungsarbeiten keine zusätzliche Dichtelemente in den Spalt 3 eingebracht und fixiert werden. Auch im Betrieb der Seitenkanalmaschine stellt sich eine mehr als ausreichende Dichtwirkung ein, da die thermischen Ausdehnungskoeffizienten der Materialien von Gehäusehälften 1, 2 und Tragring 5 nahezu identisch sind. Bei identischen Materialien sind die Ausdehnungskoeffizienten gleich und es stellt sich damit eine erneut verbesserte Dichtwirkung ein.Figures 3 and 5 are particularly suitable for different materials of the housing and the support ring 5, as with different coefficients of expansion (particularly housing effectively <ητragring η) on the basis of the clear width of the wound gap 3 in addition to the labyrinth seal effect a frictional contact of a housing half 1, 2 with the Support ring 5 is also avoided during longer operating times of the side channel machine. No additional sealing elements have to be introduced and fixed in the gap 3 during the assembly or maintenance work. Even during operation of the side channel machine, there is a more than adequate sealing effect, since the thermal expansion coefficients of the materials of the housing halves 1, 2 and support ring 5 are almost identical. With identical materials, the expansion coefficients are the same and the sealing effect is improved again.
Somit kann auch über einen längeren Betriebszeitraum eine stabile Betriebskennlinie der Seitenkanalmaschine gewährleistet werden. Thus, a stable operating characteristic of the side channel machine can be guaranteed even over a longer operating period.

Claims

Patentansprüche claims
1. Seitenkanalmaschine, mit wenigstens einem in seinem Gehäuse (1,2) drehbar angeordneten Laufrad (4), das einen mit För- derschaufeln besetzten Tragring (5) aufweist, der ein ihn tragendes und mit einer Antriebswelle verbindendes Nabenteil zumindest auf einer Seite axial bezüglich der Laufradachse überragt, wobei zumindest im Bereich des Tragringes (5) zwischen dem Laufrad (4) und dem Gehäuse (1,2) bestehenden Spal- tes (3) wenigstens eine kantenbildende Kontur (7) vorgesehen ist, die der Abdichtung dieses Spaltes (3) dient, wobei die Kontur (7) in das Gehäuse und/oder den Tragring (5) eingearbeitet ist.1. Side channel machine, with at least one impeller (4) rotatably arranged in its housing (1, 2), which has a support ring (5) fitted with conveyor blades, which axially supports a hub part that supports it and connects to a drive shaft at least on one side protrudes with respect to the impeller axis, at least in the area of the support ring (5) between the impeller (4) and the housing (1, 2) existing gap (3) at least one edge-forming contour (7) is provided, which seals this gap (3) is used, the contour (7) being worked into the housing and / or the support ring (5).
2. Seitenkanalmaschine nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß sich der Verlauf der Kontur (7) im wesentlichen in Umfangsrichtung der Seitenkanalmaschine fortsetzt.2. Side channel machine according to claim 1, so that the course of the contour (7) continues essentially in the circumferential direction of the side channel machine.
3. Seitenkanalmaschine nach Anspruch 2, d a d u r c h g e k e n n z e i c h n e t , daß sich der in Umfangsrichtung fortsetzende Verlauf der Kontur (7) zumindest einen Teil des Umfang der Seitenkanalmaschine einnimmt.3. Side channel machine according to claim 2, so that the circumferential course of the contour (7) takes up at least part of the circumference of the side channel machine.
4. Seitenkanalmaschine nach einem oder mehreren der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h e t , daß die Kontur (7) zumindest einen rechteckigen und/oder trapezförmigen und/oder dreiecksförmigen Verlauf aufweist.4. Side channel machine according to one or more of the preceding claims, that the contour (7) has at least one rectangular and / or trapezoidal and / or triangular shape.
5. Seitenkanalmaschine nach einem oder mehreren der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t , daß die Kontur (7) im wesentlichen treppenförmig verläuft. β. Seitenkanalmaschine nach einem oder mehreren der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t , daß die Kontur (7), insbesondere an den Anfangsund/oder Endbereichen des Spaltes (3) ausgebildet ist. 5. Side channel machine according to one or more of the preceding claims, characterized in that the contour (7) extends essentially in a step-like manner. β. Side channel machine according to one or more of the preceding claims, characterized in that the contour (7), in particular at the beginning and / or end regions of the gap (3), is formed.
PCT/DE2000/001379 1999-05-11 2000-05-02 Side channel machine WO2000068577A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020017014321A KR20020008183A (en) 1999-05-11 2000-05-02 Side channel machine
JP2000617332A JP2002544428A (en) 1999-05-11 2000-05-02 Regenerative pump type machine
EP00936659A EP1177384A1 (en) 1999-05-11 2000-05-02 Side channel machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19921765A DE19921765A1 (en) 1999-05-11 1999-05-11 Side channel machine
DE19921765.3 1999-05-11

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PCT/DE2000/001379 WO2000068577A1 (en) 1999-05-11 2000-05-02 Side channel machine

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EP (1) EP1177384A1 (en)
JP (1) JP2002544428A (en)
KR (1) KR20020008183A (en)
CN (1) CN1350619A (en)
DE (1) DE19921765A1 (en)
WO (1) WO2000068577A1 (en)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
US20110003238A1 (en) * 2007-09-26 2011-01-06 Daimler Ag Pump and Fuel Cell System Having a Pump
DE102004057991B4 (en) 2004-12-01 2018-03-29 Tni Medical Ag Housing shell, impeller and side channel blower
CN109026819A (en) * 2018-06-22 2018-12-18 浙江大学 The heterodont mouth ring sealing structure that a kind of double labyrinth seal structures of heterodont and a seed nucleus main pump use band to position
US11067092B2 (en) 2017-09-07 2021-07-20 Robert Bosch Gmbh Side-channel compressor for a fuel cell system for conveying and/or compressing a gaseous media

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DE10212505A1 (en) * 2002-03-20 2003-10-02 Siemens Ag Side channel pump for use in vehicle fuel tank has electric motor driving rotor sandwiched between two fixed housing parts with vanes in working chambers and labyrinth seals at rim
DE20214104U1 (en) * 2002-09-12 2003-04-03 nash_elmo Industries GmbH, 90461 Nürnberg Side Channel Blowers
DE10315779A1 (en) * 2003-04-07 2004-11-04 J. Eberspächer GmbH & Co. KG Blower, in particular combustion air blower for a vehicle heater
US20140017099A1 (en) * 2012-07-16 2014-01-16 General Electric Company Turbocharger system with reduced thrust load
CN103321945A (en) * 2013-06-21 2013-09-25 黄石市建材节能设备总厂 Efficient Z-type labyrinth seal fan
DE102014224283A1 (en) * 2014-11-27 2016-06-02 Robert Bosch Gmbh Compressor with a sealing channel
DE102014224285A1 (en) * 2014-11-27 2016-06-02 Robert Bosch Gmbh Compressor with a sealing channel
DE102017215731A1 (en) * 2017-09-07 2019-03-07 Robert Bosch Gmbh Side channel compressor for a fuel cell system for conveying and / or compressing a gaseous medium
DE102017220623A1 (en) 2017-11-17 2019-05-23 Robert Bosch Gmbh Side channel compressor for a fuel cell system for conveying and / or sealing a gaseous medium

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FR1237157A (en) * 1959-05-26 1960-07-29 Hispano Suiza Sa Improvements to compressor installations for gas streams to be partially recycled
DE2244933A1 (en) 1972-09-13 1974-03-21 Siemens Ag FLOW MACHINE, IN PARTICULAR SIDE CHANNEL COMPRESSORS
FR2199340A5 (en) * 1972-09-13 1974-04-05 Siemens Ag
DE4113394A1 (en) * 1990-04-24 1991-11-07 Nuovo Pignone Spa RINGKAMMER TYPE SELF-PRIMING BLOWER
US5248238A (en) * 1991-04-15 1993-09-28 Nippondenso Co., Ltd. Vortex pump
EP0708248A2 (en) 1994-10-20 1996-04-24 Siemens Aktiengesellschaft Side channel compressor
WO1997010439A1 (en) * 1995-09-13 1997-03-20 Siemens Aktiengesellschaft Side channel compressor
WO1997032132A1 (en) * 1996-02-29 1997-09-04 Bosch Automotive Motor Systems Corporation Streamlined annular volute for centrifugal blower

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FR1237157A (en) * 1959-05-26 1960-07-29 Hispano Suiza Sa Improvements to compressor installations for gas streams to be partially recycled
DE2244933A1 (en) 1972-09-13 1974-03-21 Siemens Ag FLOW MACHINE, IN PARTICULAR SIDE CHANNEL COMPRESSORS
FR2199340A5 (en) * 1972-09-13 1974-04-05 Siemens Ag
DE4113394A1 (en) * 1990-04-24 1991-11-07 Nuovo Pignone Spa RINGKAMMER TYPE SELF-PRIMING BLOWER
US5248238A (en) * 1991-04-15 1993-09-28 Nippondenso Co., Ltd. Vortex pump
EP0708248A2 (en) 1994-10-20 1996-04-24 Siemens Aktiengesellschaft Side channel compressor
WO1997010439A1 (en) * 1995-09-13 1997-03-20 Siemens Aktiengesellschaft Side channel compressor
WO1997032132A1 (en) * 1996-02-29 1997-09-04 Bosch Automotive Motor Systems Corporation Streamlined annular volute for centrifugal blower

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004057991B4 (en) 2004-12-01 2018-03-29 Tni Medical Ag Housing shell, impeller and side channel blower
US20110003238A1 (en) * 2007-09-26 2011-01-06 Daimler Ag Pump and Fuel Cell System Having a Pump
US8927175B2 (en) * 2007-09-26 2015-01-06 Daimler Ag Pump and fuel cell system having a pump
US11067092B2 (en) 2017-09-07 2021-07-20 Robert Bosch Gmbh Side-channel compressor for a fuel cell system for conveying and/or compressing a gaseous media
CN109026819A (en) * 2018-06-22 2018-12-18 浙江大学 The heterodont mouth ring sealing structure that a kind of double labyrinth seal structures of heterodont and a seed nucleus main pump use band to position

Also Published As

Publication number Publication date
DE19921765A1 (en) 2000-11-23
CN1350619A (en) 2002-05-22
JP2002544428A (en) 2002-12-24
KR20020008183A (en) 2002-01-29
EP1177384A1 (en) 2002-02-06

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