EP0763661B1 - Side-channel compressor - Google Patents

Side-channel compressor Download PDF

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Publication number
EP0763661B1
EP0763661B1 EP96114029A EP96114029A EP0763661B1 EP 0763661 B1 EP0763661 B1 EP 0763661B1 EP 96114029 A EP96114029 A EP 96114029A EP 96114029 A EP96114029 A EP 96114029A EP 0763661 B1 EP0763661 B1 EP 0763661B1
Authority
EP
European Patent Office
Prior art keywords
housing
compressor
rotor
drive shaft
side channel
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 - Lifetime
Application number
EP96114029A
Other languages
German (de)
French (fr)
Other versions
EP0763661A2 (en
EP0763661A3 (en
Inventor
Peter Fischer
Norbert Dr. Aust
Klaus Dipl.Wirt.Ing. Greier (Fh)
Peter Dipl.-Ing. Krummen (Fh)
Leopold Dipl.-Ing. Streit
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.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0763661A2 publication Critical patent/EP0763661A2/en
Publication of EP0763661A3 publication Critical patent/EP0763661A3/en
Application granted granted Critical
Publication of EP0763661B1 publication Critical patent/EP0763661B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials 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
    • F04D29/083—Sealings especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber

Definitions

  • the invention relates to a side channel compressor, with a Compressor housing consisting of two housing halves, in which an impeller provided with conveyor blades is rotatably arranged and with its hub part with one by one on one Half of the housing provided insertion opening protruding into the housing Drive shaft of a drive motor is connected.
  • Such a side channel blower is by DE-U-87 04 066 known.
  • the housing and the impeller of such compressors is usually made from cast aluminum parts. If you want the compressor housing from another Manufacture material, then the construction of the known side channel blower because of the aluminum different properties of the other material not be taken over easily.
  • From US-A-5 049 770 is a generic side channel compressor known.
  • the disadvantage is that a relative complex structure of the side channel compressor is present.
  • the invention has for its object an embodiment for a side channel blower to find its housing producible from a material other than metallic is.
  • the problem is solved according to the invention characterized in that when the compressor housing is formed Plastic between the impeller and the compressor housing existing gaps sealed using appropriate sealing elements and the peripheral edge of the insertion opening are the drive shaft surrounds with radial play. Due to the radial play between the circumferential edge of the insertion opening and the drive shaft is due to the low dimensional accuracy of art radial alignment of the housing halves due to the material with respect to the impeller arranged on the drive shaft allows. So that the housing halves can be without any Leave postprocessing in its production state and in this condition can be assembled into a compressor housing.
  • a good seal of the gaps can be achieved that the conveyor blades on one connected to the hub part Support ring are arranged, the hub part at least one side projects axially and the sealing elements in the area of the support ring are arranged. It can then become axial Direction extending and mountable in the axial direction Sealing elements are used. These can, for example from a flat, in a corresponding annular groove of the respective Insert half of the housing insertable strips.
  • the insertion opening having a housing half close to one on the connecting flange of the drive motor provided centering edge subsequent Centering ring is provided.
  • the centering edge and the centering ring becomes one of those located within the centering ring Wall area of the relevant housing half and the inside of the centering edge of the wall area of the connecting flange bounded sealing space created.
  • With 1 is the housing consisting of two housing halves 2 and 3 called a side channel blower.
  • an impeller 4 is rotatably arranged, the Conveyor blades 5 on one connected to a hub part 6 Support ring 7 are arranged.
  • the hub part 6 is non-rotatably on the free end of the shaft acting as drive shaft 8 a drive motor flanged onto one housing half 2 9.
  • the drive shaft 8 projects through a on a boss 10 of the one housing half 2 formed insertion opening 11 in the compressor housing 1.
  • the peripheral edge 12 of the Insertion opening 11 surrounds the drive shaft 8 with a radial one Game.
  • unprocessed plastic parts compared to unprocessed Metal parts must have a lower dimensional accuracy when assembling the unprocessed housing halves 2 and 3 and the impeller 4 to a side channel compressor a corresponding Alignment of these parts to each other.
  • the housing halves 2 and 3 must be correspondingly radial to be aligned with the peripheral edge 17 of the conveyor scoop. Due to the radial at the insertion opening 11 Game between the peripheral edge 12 and the drive shaft 8 such a radial alignment of the housing halves 2 and 3 enables.
  • the drive motor 9 of radial clearance for centering the side channel blower with respect to the connecting flange 14 possibly necessary radial displacement of the compressor housing guaranteed.
  • sealing rings 19 By in the region of the support ring 7 on the housing halves 2 and 3 arranged sealing rings 19 is through the side channels 20th formed delivery space of the side channel blower to the outside sealed off. Thus, in the area of the insertion opening 11 no precautions are required to seal this opening.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Arc Welding Control (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Massaging Devices (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The compressor has a two-part compressor housing containing a rotor which is driven by the drive output shaft of a drive motor. The output shaft fits through an opening in one compressor housing half into engagement with the rotor hub. The compressor housing is made of plastics, with the gap between the rotor and the housing sealed by a sealing element. The sealing element encloses the peripheral edge of the insertion opening for the drive output shaft with a defined radial play. The rotor blades are attached to a carrier ring, axially projecting beyond the hub on at least one side, with the sealing element provided adjacent the carrier ring.

Description

Die Erfindung betrifft einen Seitenkanalverdichter, mit einem aus zwei Gehäusehälften bestehenden Verdichtergehäuse, in dem ein mit Förderschaufeln versehenes Laufrad drehbar angeordnet und mit seinem Nabenteil mit einer durch eine an der einen Gehäusehälfte vorgesehene Einführöffnung in das Gehäuse ragenden Antriebswelle eines Antriebsmotors verbunden ist.The invention relates to a side channel compressor, with a Compressor housing consisting of two housing halves, in which an impeller provided with conveyor blades is rotatably arranged and with its hub part with one by one on one Half of the housing provided insertion opening protruding into the housing Drive shaft of a drive motor is connected.

Ein solcher Seitenkanalverdichter ist durch das DE-U-87 04 066 bekannt. Das Gehäuse und das Laufrad solcher Verdichter wird in der Regel aus gegossenen Aluminiumteilen hergestellt. Will man das Verdichtergehäuse aus einem anderen Material herstellen, dann kann der konstruktive Aufbau des bekannten Seitenkanalverdichters wegen der gegenüber Aluminium unterschiedlichen Eigenschaften des anderen Materials nicht ohne weiteres übernommen werden.Such a side channel blower is by DE-U-87 04 066 known. The housing and the impeller of such compressors is usually made from cast aluminum parts. If you want the compressor housing from another Manufacture material, then the construction of the known side channel blower because of the aluminum different properties of the other material not be taken over easily.

Aus der US-A-5 049 770 ist ein gattungsgemäßer Seitenkanalverdichter bekannt. Nachteilig dabei ist, dass ein relativ aufwendiger Aufbau des Seitenkanalverdichters vorliegt.From US-A-5 049 770 is a generic side channel compressor known. The disadvantage is that a relative complex structure of the side channel compressor is present.

Der Erfindung liegt die Aufgabe zugrunde, eine Ausführungsform für einen Seitenkanalverdichter zu finden, dessen Gehäuse aus einem anderen als metallischem Material herstellbar ist.The invention has for its object an embodiment for a side channel blower to find its housing producible from a material other than metallic is.

Die Lösung der gestellten Aufgabe gelingt nach der Erfindung dadurch, daß bei einer Ausbildung des Verdichtergehäuses aus Kunststoff die zwischen dem Laufrad und dem Verdichtergehäuse bestehenden Spalte mittels entsprechender Dichtelemente abgedichtet sind und die Umlaufkante der Einführöffnung die Antriebswelle mit radialem Spiel umgibt. Durch das radiale Spiel zwischen der Umlaufkante der Einführöffnung und der Antriebswelle wird eine durch die geringe Maßgenauigkeit des Kunst stoffmaterials bedingte radiale Ausrichtung der Gehäusehälften in bezug auf das auf der Antriebswelle angeordnete Laufrad ermöglicht. Damit können die Gehäusehälften ohne jegliche Nachbearbeitung in ihrem Herstellungszustand belassen und in diesem Zustand zu einem Verdichtergehäuse zusammengefügt werden.The problem is solved according to the invention characterized in that when the compressor housing is formed Plastic between the impeller and the compressor housing existing gaps sealed using appropriate sealing elements and the peripheral edge of the insertion opening are the drive shaft surrounds with radial play. Due to the radial play between the circumferential edge of the insertion opening and the drive shaft is due to the low dimensional accuracy of art radial alignment of the housing halves due to the material with respect to the impeller arranged on the drive shaft allows. So that the housing halves can be without any Leave postprocessing in its production state and in this condition can be assembled into a compressor housing.

Eine gute Abdichtung der Spalte läßt sich dadurch erreichen, daß die Förderschaufeln auf einem mit dem Nabenteil verbundenen Tragring angeordnet sind, der das Nabenteil zumindest auf einer Seite axial überragt und die Dichtelemente im Bereich des Tragringes angeordnet sind. Es können dann sich in axialer Richtung erstreckende und in axialer Richtung montierbare Dichtelemente verwendet werden. Diese können beispielsweise aus einem flachen, in eine entsprechende Ringnut der jeweiligen Gehäusehälfte einfügbaren Streifen bestehen.A good seal of the gaps can be achieved that the conveyor blades on one connected to the hub part Support ring are arranged, the hub part at least one side projects axially and the sealing elements in the area of the support ring are arranged. It can then become axial Direction extending and mountable in the axial direction Sealing elements are used. These can, for example from a flat, in a corresponding annular groove of the respective Insert half of the housing insertable strips.

Vorteilhaft ist es ferner, wenn an der die Einführöffnung aufweisenden Gehäusehälfte ein dicht an einen am Anschlußflansch des Antriebsmotors vorgesehenen Zentrierrand anschließender Zentrierring vorgesehen ist. Durch ein solch dichtes Aneinanderstoßen des Zentrierrandes und des Zentrierringes wird ein von dem innerhalb des Zentrierringes liegenden Wandbereich der betreffenden Gehäusehälfte und dem innerhalb des Zentrierrandes liegenden Wandbereich des Anschlußflansches umgrenzter Dichtraum geschaffen. Damit ist keinerlei Abdichtung der für das Einführen der Antriebswelle in die betreffende Gehäusehälfte mit radialem Spiel gegenüber der Antriebswelle vorgesehenen Einführöffnung erforderlich.It is also advantageous if the insertion opening having a housing half close to one on the connecting flange of the drive motor provided centering edge subsequent Centering ring is provided. Through such close abutment of the centering edge and the centering ring becomes one of those located within the centering ring Wall area of the relevant housing half and the inside of the centering edge of the wall area of the connecting flange bounded sealing space created. There is none at all Sealing the for inserting the drive shaft into the relevant housing half with radial play compared to the Drive shaft provided insertion opening required.

Anhand eines in der Zeichnung dargestellten Ausführungsbeispieles wird die Erfindung nachfolgend näher beschrieben.Based on an embodiment shown in the drawing the invention is described in more detail below.

Mit 1 ist das aus zwei Gehäusehälften 2 und 3 bestehende Gehäuse eines Seitenkanalverdichters bezeichnet. In dem Verdichtergehäuse 1 ist ein Laufrad 4 drehbar angeordnet, dessen Förderschaufeln 5 an einem mit einem Nabenteil 6 verbundenen Tragring 7 angeordnet sind. Das Nabenteil 6 sitzt drehfest auf dem freien Ende der als Antriebswelle 8 wirkenden Welle eines an der einen Gehäusehälfte 2 angeflanschten Antriebsmotors 9. Die Antriebswelle 8 ragt durch eine an einem Nabenvorsprung 10 der einen Gehäusehälfte 2 ausbildete Einführöffnung 11 in das Verdichtergehäuse 1. Die Umlaufkante 12 der Einführöffnung 11 umgibt die Antriebswelle 8 mit radialem Spiel.With 1 is the housing consisting of two housing halves 2 and 3 called a side channel blower. In the compressor housing 1, an impeller 4 is rotatably arranged, the Conveyor blades 5 on one connected to a hub part 6 Support ring 7 are arranged. The hub part 6 is non-rotatably on the free end of the shaft acting as drive shaft 8 a drive motor flanged onto one housing half 2 9. The drive shaft 8 projects through a on a boss 10 of the one housing half 2 formed insertion opening 11 in the compressor housing 1. The peripheral edge 12 of the Insertion opening 11 surrounds the drive shaft 8 with a radial one Game.

An der einen Gehäusehälfte 2 ist ferner ein axial vorstehender Zentrierring 13 angeformt, der einen am Anschlußflansch 14 des Antriebsmotors 9 vorgesehenen Zentrierrand 15 übergreift. Zwischen der übergreifenden Fläche des Zentrierringes 13 und des Zentrierrandes 15 kann ein Dichtmittel vorgesehen sein, so daß der innerhalb des Zentrierringes 13 und des Zentrierrandes 15 liegende Raum 21 als Dichtraum gegenüber der Einführöffnung 11 wirkt. Damit braucht an der Einführöffnung 11 trotz des radialen Spieles zwischen der Úmlaufkante 12 und der Antriebswelle 8 keine gesonderte, das Eindringen von Fremdkörpern in das Verdichtergehäuse 1 verhindernde Abschirmung vorgesehen zu werden.On one housing half 2 there is also an axially projecting one Centering ring 13 formed, one on the connecting flange 14 of the drive motor 9 provided centering edge 15. Between the overlapping surface of the centering ring 13 and the centering edge 15, a sealant can be provided be so that within the centering ring 13 and the centering edge 15 lying room 21 as a sealing space opposite the Insertion opening 11 acts. So that needs at the insertion opening 11 despite the radial play between the circumferential edge 12 and the drive shaft 8 no separate, the penetration of Foreign matter in the compressor housing 1 preventing shield to be provided.

Da unbearbeitete Kunststoffteile im Vergleich zu unbearbeiteten Metallteilen eine geringere Maßhaltigkeit aufweisen, muß beim Zusammenbau der unbearbeiteten Gehäusehälften 2 und 3 und des Laufrades 4 zu einem Seitenkanalverdichter eine entsprechende Ausrichtung dieser Teile zueinander erfolgen. Um insbesondere im Unterbrecherbereich 16 des Verdichtergehäuses 1 einen engen Radialspalt zwischen der Umfangskante 17 der Förderschaufel 5 und dem im Unterbrecherbereich liegenden waagerechten Wandteil 18 der Gehäusehälften 2 und 3 zu erreichen, müssen die Gehäusehälften 2 und 3 entsprechend radial zu der Umfangskante 17 der Förderschaufel ausgerichtet werden. Durch das an der Einführöffnung 11 vorhandene radiale Spiel zwischen deren Umlaufkante 12 und der Antriebswelle 8 wird ein solches radiales Ausrichten der Gehäusehälften 2 und 3 ermöglicht. Auch gegenüber dem Antriebsmotor 9 ist infolge des radialen Spieles ein für die Zentrierung des Seitenkanalverdichters gegenüber dem Anschlußflansch 14 eventuell notwendiges radiales Versetzen des Verdichtergehäuses gewährleistet.Because unprocessed plastic parts compared to unprocessed Metal parts must have a lower dimensional accuracy when assembling the unprocessed housing halves 2 and 3 and the impeller 4 to a side channel compressor a corresponding Alignment of these parts to each other. Around especially in the interrupter area 16 of the compressor housing 1 a narrow radial gap between the peripheral edge 17 of the Conveyor bucket 5 and the one located in the interrupter area to reach horizontal wall part 18 of the housing halves 2 and 3, the housing halves 2 and 3 must be correspondingly radial to be aligned with the peripheral edge 17 of the conveyor scoop. Due to the radial at the insertion opening 11 Game between the peripheral edge 12 and the drive shaft 8 such a radial alignment of the housing halves 2 and 3 enables. Also as compared to the drive motor 9 of radial clearance for centering the side channel blower with respect to the connecting flange 14 possibly necessary radial displacement of the compressor housing guaranteed.

Durch im Bereich des Tragringes 7 an den Gehäusehälften 2 und 3 angeordnete Dichtringe 19 wird der durch Seitenkanäle 20 gebildete Förderraum des Seitenkanalverdichters nach außen hin abgedichtet. Somit sind im Bereich der Einführöfffnung 11 keine Vorkehrungen für ein Abdichten dieser Öffnung erforderlich.By in the region of the support ring 7 on the housing halves 2 and 3 arranged sealing rings 19 is through the side channels 20th formed delivery space of the side channel blower to the outside sealed off. Thus, in the area of the insertion opening 11 no precautions are required to seal this opening.

Claims (3)

  1. Side channel compressor, with a compressor housing (1) which consists of two housing halves (2 and 3) and in which a rotor (4) provided with feed vanes (5) is arranged rotatably and is connected with its hub part (6) to a drive shaft (8) of a drive motor (9), said drive shaft projecting into the housing (1) through an introduction orifice (11) provided on one housing half (2), characterized in that, in a design of the compressor housing (1) from plastic, the gaps existing between the rotor (4) and the compressor housing (1) are sealed off by means of corresponding sealing elements (19), and the peripheral edge (12) of the introduction orifice (11) surrounds the drive shaft (8) with radial play.
  2. Side channel compressor according to Claim 1, characterized in that the feed vanes (5) are arranged on a carrier ring (7) which is connected to the hub part (6) and which projects axially beyond the hub part (6) at least on one side, and the sealing elements (19) are arranged in the region of the carrier ring (7).
  3. Side channel compressor according to Claim 1 or 2, characterized in that a centring ring (13) closely adjacent to a centring edge (15) provided on the connecting flange (14) of the drive motor (9) is provided on the housing half (2) having the introduction orifice (11).
EP96114029A 1995-09-15 1996-09-02 Side-channel compressor Expired - Lifetime EP0763661B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19534296 1995-09-15
DE19534296 1995-09-15

Publications (3)

Publication Number Publication Date
EP0763661A2 EP0763661A2 (en) 1997-03-19
EP0763661A3 EP0763661A3 (en) 1998-07-22
EP0763661B1 true EP0763661B1 (en) 2002-07-17

Family

ID=7772297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96114029A Expired - Lifetime EP0763661B1 (en) 1995-09-15 1996-09-02 Side-channel compressor

Country Status (7)

Country Link
EP (1) EP0763661B1 (en)
JP (1) JPH09112485A (en)
KR (1) KR970016149A (en)
CN (1) CN1147601A (en)
AT (1) ATE220764T1 (en)
AU (1) AU6563796A (en)
DE (1) DE59609444D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005042227A1 (en) * 2005-09-05 2007-03-08 Dürr Dental GmbH & Co. KG Rotor for side channel-suction machine, has hub part manufactured from metal e.g. aluminum alloy and running ring manufactured from glass reinforced plastic material, where running rotor has blades supported in torsion-free manner
DE102017215739A1 (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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095820A (en) * 1960-02-29 1963-07-02 Mcculloch Corp Reentry rotary fluid pump
CH560326A5 (en) * 1972-09-13 1975-03-27 Siemens Ag
DE8704066U1 (en) * 1987-03-18 1988-07-14 Siemens AG, 1000 Berlin und 8000 München Side channel blower
US5049770A (en) * 1990-03-26 1991-09-17 General Motors Corporation Electric motor-driven impeller-type air pump

Also Published As

Publication number Publication date
KR970016149A (en) 1997-04-28
EP0763661A2 (en) 1997-03-19
DE59609444D1 (en) 2002-08-22
ATE220764T1 (en) 2002-08-15
EP0763661A3 (en) 1998-07-22
AU6563796A (en) 1997-03-20
CN1147601A (en) 1997-04-16
JPH09112485A (en) 1997-05-02

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