EP0708248B1 - Side channel compressor - Google Patents

Side channel compressor Download PDF

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Publication number
EP0708248B1
EP0708248B1 EP95115950A EP95115950A EP0708248B1 EP 0708248 B1 EP0708248 B1 EP 0708248B1 EP 95115950 A EP95115950 A EP 95115950A EP 95115950 A EP95115950 A EP 95115950A EP 0708248 B1 EP0708248 B1 EP 0708248B1
Authority
EP
European Patent Office
Prior art keywords
ring
housing
side channel
channel compressor
bearing ring
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
EP95115950A
Other languages
German (de)
French (fr)
Other versions
EP0708248A3 (en
EP0708248A2 (en
Inventor
Peter Fischer
Klaus Dipl.-Ing. Schoenwald
Helmut Werner
Norbert Dr. Aust
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 EP0708248A2 publication Critical patent/EP0708248A2/en
Publication of EP0708248A3 publication Critical patent/EP0708248A3/en
Application granted granted Critical
Publication of EP0708248B1 publication Critical patent/EP0708248B1/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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/083—Sealings especially adapted for elastic fluid pumps

Definitions

  • the invention relates to a side channel compressor, with a in its housing rotatably arranged impeller, the one with Conveyor vanes have a supporting ring, which a him load-bearing and with a drive shaft connecting hub part axially protrudes at least on one side, which Compressor in the area of the support ring between the Impeller and the housing existing gap sealing Sealing device is provided.
  • Such a side channel blower is through DE-A-22 44 933 known.
  • a band is inserted into an annular groove provided in the housing, that extends against the end face of the support ring.
  • the Band is aligned in the ring groove so that a gap as small as possible between the face of the Tragringes and the protruding from the annular groove end of Band results in the so-called gap losses to keep it as small as possible.
  • the invention has for its object a side channel compressor of the generic type so that the Sealing the gap despite lower manufacturing and Assembly effort is significantly improved.
  • the problem is solved according to the invention in that an axially projecting on the inner circumference of the Part of the support ring adjacent, radially extending Sealing ring by means of a retaining ring against one on the housing provided contact surface is held clamped.
  • a closed Ring shape of the sealing ring enables.
  • the outside diameter of the In terms of production technology, the sealing ring can fit the inside diameter very precisely of the support ring can be adjusted.
  • the attachment the retaining ring is expediently carried out by means of screws.
  • the sealing ring in one in the area formed corner recess on the respective end face of the support ring intervenes.
  • a machined area is thus available.
  • there is an axial support of the sealing ring in the area its outer circumference when the sealing ring here through the prevailing compression pressure due to its elasticity is axially deflected.
  • the Housing halves 1 and 2 enclose one on one in the Drawing not shown drive shaft arranged Impeller 4.
  • the impeller 4 has one on its outer circumference Support ring 5 on which the conveyor blades 6 of the impeller 4th are arranged.
  • the support ring 5 is on one on the Drive shaft plugged and rotatably with this connected hub part 7 arranged.
  • each housing half 1 and 2 is in the radially inside of the support ring 5 at this adjacent area, a sealing arrangement intended.
  • This consists of a plastic sealing ring 8, which by means of screws 9 attached retaining ring 10 against a corresponding on the Provided housing wall of the respective housing half 1 or 2 Contact surface is kept.
  • each end face 11 rotated into which the sealing ring 8 engages.
  • the Sealing ring 8 lies with its outer circumference on the inner circumference of the axially extending wall part of the corner recess 11 on.
  • the corner recess 11 there is a high dimensional accuracy with regard to the diameter of the corner recess 11 before. Since the sealing ring 8 with respect its outer diameter can be manufactured with high accuracy a good sealing effect can be achieved. In this way can over the between the impeller 4 and the existing housing half 1 or 2 existing gap 12 resulting leakage losses can be significantly reduced.

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

Description

Die Erfindung betrifft einen Seitenkanalverdichter, mit einem in seinem Gehäuse drehbar angeordneten Laufrad, das einen mit Förderschaufeln besetzten Tragring aufweist, der ein ihn tragendes und mit einer Antriebswelle verbindendes Nabenteil zumindest auf einer Seite axial überragt, bei welchem Verdichter im Bereich des Tragringes eine den zwischen dem Laufrad und dem Gehäuse bestehenden Spalt abdichtende Dichtungseinrichtung vorgesehen ist.The invention relates to a side channel compressor, with a in its housing rotatably arranged impeller, the one with Conveyor vanes have a supporting ring, which a him load-bearing and with a drive shaft connecting hub part axially protrudes at least on one side, which Compressor in the area of the support ring between the Impeller and the housing existing gap sealing Sealing device is provided.

Ein solcher Seitenkanalverdichter ist durch die DE-A-22 44 933 bekannt. Bei diesem bekannten Verdichter ist in eine im Gehäuse vorgesehene Ringnut ein Band eingelegt, das sich gegen die Stirnseite des Tragringes erstreckt. Das Band wird 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, um hierdurch die sogenannten Spaltverluste möglichst klein zu halten.Such a side channel blower is through DE-A-22 44 933 known. In this known compressor a band is inserted into an annular groove provided in the housing, that extends against the end face of the support ring. The Band is aligned in the ring groove so that a gap as small as possible between the face of the Tragringes and the protruding from the annular groove end of Band results in the so-called gap losses to keep it as small as possible.

Von der Fertigung her ist es bereits sehr aufwendig, die erforderliche Ringnut am Gehäuse vorzusehen. Das Ausrichten des Bandes zur Erzielung eines gleichmäßigen und engen Spaltes bereitet erhebliche Schwierigkeiten. Außerdem verbleibt an der Stoßstelle des Bandes in Umfangsrichtung ein weiterer Spalt der zu einem Druckverlust führt.In terms of production, it is already very complex provide the required ring groove on the housing. Alignment of the tape to achieve an even and tight Gap creates considerable difficulties. Moreover remains at the joint of the tape in the circumferential direction further gap which leads to a pressure loss.

Der Erfindung liegt die Aufgabe zugrunde, einen Seitenkanalverdichter der gattungsgemäßen Art so auszubilden, daß die Abdichtung des Spaltes trotz geringeren Fertigungs- und Montageaufwandes wesentlich verbessert ist. The invention has for its object a side channel compressor of the generic type so that the Sealing the gap despite lower manufacturing and Assembly effort is significantly improved.

Die Lösung der gestellten Aufgabe gelingt nach der Erfindung dadurch, daß ein am Innenumfang des axial überstehenden Teiles des Tragringes anliegender, sich radial erstreckender Dichtungsring mittels eines Halteringes gegen eine am Gehäuse vorgesehene Anlagefläche eingespannt gehalten ist. Durch die Anordnung des Dichtringes innerhalb des gegenüber dem Nabenteil axial überstehenden Tragringes wird eine geschlossene Ringform des Dichtringes ermöglicht. Der Außendurchmesser des Dichtringes kann fertigungstechnisch sehr genau dem Innendurchmesser des -Tragringes angepaßt werden. Die Befestigung des Halteringes erfolgt zweckmäßigerweise mittels Schrauben.The problem is solved according to the invention in that an axially projecting on the inner circumference of the Part of the support ring adjacent, radially extending Sealing ring by means of a retaining ring against one on the housing provided contact surface is held clamped. Through the Arrangement of the sealing ring within the opposite of the hub part axially projecting support ring is a closed Ring shape of the sealing ring enables. The outside diameter of the In terms of production technology, the sealing ring can fit the inside diameter very precisely of the support ring can be adjusted. The attachment the retaining ring is expediently carried out by means of screws.

Vorteilhaft ist es, daß der Dichtungsring in eine im Bereich der jeweiligen Stirnseite des Tragringes ausgebildete Eckaussparung eingreift. Für die radiale Anlage des Dichtringes steht somit eine bearbeitete Fläche zur Verfügung. Außerdem ergibt sich eine axiale Abstützung des Dichtringes im Bereich seines Außenumfanges, wenn der Dichtring hier durch den herrschenden Verdichtungsdruck aufgrund seiner Elastizität axial ausgelenkt wird.It is advantageous that the sealing ring in one in the area formed corner recess on the respective end face of the support ring intervenes. For the radial installation of the sealing ring a machined area is thus available. Moreover there is an axial support of the sealing ring in the area its outer circumference when the sealing ring here through the prevailing compression pressure due to its elasticity is axially deflected.

Anhand eines in der Zeichnung dargestellten Ausführungsbeispieles wird die Erfindung nachfolgend näher beschrieben. Es zeigt:

  • FIG 1 einen Teillängsschnitt eines Seitenkanalverdichters,
  • FIG 2 einen Detailausschnitt der Dichtungsanordnung.
    • The invention is described in more detail below on the basis of an exemplary embodiment shown in the drawing. It shows:
  • 1 shows a partial longitudinal section of a side channel compressor,
  • 2 shows a detail of the sealing arrangement.

    • Mit 1 und 2 sind die das Gehäuse eines Seitenkanalverdichters bildenden Gehäusehälften bezeichnet. Die Gehäusehälften 1 und 2 umschließen ein auf einer in der Zeichnung nicht dargestellten Antriebswelle angeordnetes Laufrad 4. 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 an einem auf der Antriebswelle aufgesteckten und drehfest mit dieser verbundenen Nabenteil 7 angeordnet. With 1 and 2 they are the housing of a side channel blower called housing halves. The Housing halves 1 and 2 enclose one on one in the Drawing not shown drive shaft arranged Impeller 4. The impeller 4 has one on its outer circumference Support ring 5 on which the conveyor blades 6 of the impeller 4th are arranged. The support ring 5 is on one on the Drive shaft plugged and rotatably with this connected hub part 7 arranged.

    An jeder Gehäusehälfte 1 und 2 ist in dem radial innerhalb des Tragringes 5 an diesem angrenzenden Bereich eine Dichtungsanordnung vorgesehen. Diese besteht aus einem Kunststoff-Dichtungsring 8 , der durch einen mittels Schrauben 9 befestigten Haltering 10 gegen eine entsprechende an der Gehäusewand der jeweiligen Gehäusehälfte 1 bzw. 2 vorgesehene Anlagefläche gehalten ist.On each housing half 1 and 2 is in the radially inside of the support ring 5 at this adjacent area, a sealing arrangement intended. This consists of a plastic sealing ring 8, which by means of screws 9 attached retaining ring 10 against a corresponding on the Provided housing wall of the respective housing half 1 or 2 Contact surface is kept.

    An dem Tragring 5 ist auf jeder Stirnseite eine Eckaussparung 11 ausgedreht, in die der Dichtungsring 8 eingreift. Der Dichtungsring 8 liegt mit seinem Außenumfang am Innenumfang des sich axial erstreckenden Wandteiles der Eckaussparung 11 an. Infolge des Ausdrehens der Eckaussparung 11 liegt eine hohe Maßgenauigkeit hinsichtlich des Durchmessers der Eckaussparung 11 vor. Da auch der Dichtungsring 8 hinsichtlich seines Außendurchmessers mit hoher Genauigkeit herstellbar ist, ist eine gute Dichtwirkung erzielbar. Auf diese Weise können die sich über den zwischen dem Laufrad 4 und der jeweiligen Gehäusehälfte 1 bzw. 2 bestehenden Spalt 12 ergebenden Leckverluste wesentlich vermindert werden.On the support ring 5 there is a corner recess on each end face 11 rotated into which the sealing ring 8 engages. The Sealing ring 8 lies with its outer circumference on the inner circumference of the axially extending wall part of the corner recess 11 on. As a result of unscrewing the corner recess 11 there is a high dimensional accuracy with regard to the diameter of the corner recess 11 before. Since the sealing ring 8 with respect its outer diameter can be manufactured with high accuracy a good sealing effect can be achieved. In this way can over the between the impeller 4 and the existing housing half 1 or 2 existing gap 12 resulting leakage losses can be significantly reduced.

    Claims (3)

    1. Side channel compressor having an impeller (4) which is arranged rotatably in its housing (1, 2) and has a bearing ring (5) provided with delivery blades (6), which bearing ring, at least on one side, axially overhangs a hub portion (7) which supports it and connects it to a drive shaft, in which compressor there is provided in the region of the bearing ring (5) a sealing device which seals a gap (12) which exists between the impeller (4) and the housing (1, 2), characterised in that a radially extending sealing ring (8) which rests on the inner periphery of the axially overhanging portion of the bearing ring (5) is held by means of a retaining ring (10) in a manner such that it is clamped against a bearing surface provided on the housing (1, 2).
    2. Side channel compressor according to claim 1, characterised in that the retaining ring (10) is fastened to the housing (1, 2) by means of screws (9).
    3. Side channel compressor according to claim 1 or 2, characterised in that the sealing ring (8) engages in a corner recess (11) constructed in the region of the respective end face of the bearing ring (5).
    EP95115950A 1994-10-20 1995-10-10 Side channel compressor Expired - Lifetime EP0708248B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE4437589 1994-10-20
    DE4437589 1994-10-20

    Publications (3)

    Publication Number Publication Date
    EP0708248A2 EP0708248A2 (en) 1996-04-24
    EP0708248A3 EP0708248A3 (en) 1997-04-02
    EP0708248B1 true EP0708248B1 (en) 2000-01-12

    Family

    ID=6531311

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP95115950A Expired - Lifetime EP0708248B1 (en) 1994-10-20 1995-10-10 Side channel compressor

    Country Status (4)

    Country Link
    US (1) US5658126A (en)
    EP (1) EP0708248B1 (en)
    JP (1) JPH08210293A (en)
    DE (1) DE59507602D1 (en)

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE10041332C1 (en) * 2000-08-23 2001-08-30 Siemens Ag Side channel type compressor includes sealing ring having at least one radial slot, and fitted near carrier ring so as to seal gap between rotor and casing
    EP1672221A2 (en) 2004-12-15 2006-06-21 Gardner Denver Elmo Technology GmbH Compressor, in particular lateral channel compressor

    Families Citing this family (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE29613186U1 (en) * 1996-07-30 1996-09-19 Siemens AG, 80333 München Side channel blower
    DE19921765A1 (en) 1999-05-11 2000-11-23 Siemens Ag Side channel machine
    US7033137B2 (en) 2004-03-19 2006-04-25 Ametek, Inc. Vortex blower having helmholtz resonators and a baffle assembly
    CN106065862B (en) * 2016-07-26 2017-06-30 合肥通用机械研究院 Vortex blower adopting welding process
    DE102016222430A1 (en) 2016-11-15 2018-05-17 Gardner Denver Deutschland Gmbh Side Channel Blowers

    Family Cites Families (12)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE247725C (en) *
    US2468246A (en) * 1947-01-09 1949-04-26 Linde Air Prod Co Rotary pump for liquefied gases
    GB703696A (en) * 1950-11-20 1954-02-10 Vickers Electrical Co Ltd Improvements relating to sealing glands
    US2944785A (en) * 1955-05-18 1960-07-12 Thompson Ramo Wooldridge Inc Impeller for turbine engine and the like
    US3079866A (en) * 1959-07-16 1963-03-05 Texaco Inc Modified centrifugal pump
    DE2244933A1 (en) * 1972-09-13 1974-03-21 Siemens Ag FLOW MACHINE, IN PARTICULAR SIDE CHANNEL COMPRESSORS
    US4279570A (en) * 1978-03-31 1981-07-21 The Garrett Corporation Energy transfer machine
    SU724800A1 (en) * 1978-05-19 1980-03-30 Самостоятельное Конструкторско- Технологическое Бюро По Проектированию Приборов И Аппаратов Из Стекла Vortex-type machine
    JPS59128993A (en) * 1983-01-10 1984-07-25 Hitachi Ltd Centrifugal pump
    DE8704066U1 (en) * 1987-03-18 1988-07-14 Siemens AG, 1000 Berlin und 8000 München Side channel blower
    US5143511A (en) * 1990-09-28 1992-09-01 Lamson Corporation Regenerative centrifugal compressor
    JPH09211792A (en) * 1996-02-06 1997-08-15 Fuji Photo Film Co Ltd Film cartridge with ic memory, data recording device and data input/output device therefor

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE10041332C1 (en) * 2000-08-23 2001-08-30 Siemens Ag Side channel type compressor includes sealing ring having at least one radial slot, and fitted near carrier ring so as to seal gap between rotor and casing
    EP1672221A2 (en) 2004-12-15 2006-06-21 Gardner Denver Elmo Technology GmbH Compressor, in particular lateral channel compressor

    Also Published As

    Publication number Publication date
    EP0708248A3 (en) 1997-04-02
    DE59507602D1 (en) 2000-02-17
    EP0708248A2 (en) 1996-04-24
    US5658126A (en) 1997-08-19
    JPH08210293A (en) 1996-08-20

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