EP1703136B1 - Compresseur à canal latéral - Google Patents

Compresseur à canal latéral Download PDF

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Publication number
EP1703136B1
EP1703136B1 EP06000867A EP06000867A EP1703136B1 EP 1703136 B1 EP1703136 B1 EP 1703136B1 EP 06000867 A EP06000867 A EP 06000867A EP 06000867 A EP06000867 A EP 06000867A EP 1703136 B1 EP1703136 B1 EP 1703136B1
Authority
EP
European Patent Office
Prior art keywords
lateral channel
insert
channel compressor
compressor according
cover
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.)
Not-in-force
Application number
EP06000867A
Other languages
German (de)
English (en)
Other versions
EP1703136A3 (fr
EP1703136A2 (fr
Inventor
Jürgen KRINES
Evgenij Rjabchenko
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.)
Gardner Denver Deutschland GmbH
Original Assignee
Gardner Denver Deutschland GmbH
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 Gardner Denver Deutschland GmbH filed Critical Gardner Denver Deutschland GmbH
Publication of EP1703136A2 publication Critical patent/EP1703136A2/fr
Publication of EP1703136A3 publication Critical patent/EP1703136A3/fr
Application granted granted Critical
Publication of EP1703136B1 publication Critical patent/EP1703136B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Definitions

  • the invention relates to a lateral channel compressor.
  • a gas which is to be compressed is set in a helically shaped motion in at least one ring-type lateral channel using a rotating impeller driven by a drive aggregate, and is compressed by an intake into a pressure joint.
  • the gas which is sucked on the intake is carried along due to the impeller which is rotating in the lateral channel, is set in the helically shaped motion in the circumferential direction and after nearly 360° is again expelled back over the pressure joints.
  • the lateral channel compressor can be used as both a compressor and as a vacuum pump.
  • the lateral channel compressor is very robust, thanks to its simple compression principle, and is preferably used for applications which require high volume flows of the gas. Particular advantages of the lateral channel compressor are that it is maintenance-free, has oil-free compression, low noise levels and a very long life cycle.
  • the degree of effectiveness of the lateral channel compressor depends crucially, among other things, on the geometry selected for the lateral channel, as well as on a defined flow guidance which is as free of turbulence as possible.
  • the surface quality of the wall sections of the lateral channel is of significant importance. A high surface quality with a complex lateral channel geometry can frequently only be realised using special post-processing methods or complex manufacturing stages, which results in high manufacturing costs.
  • the object of the invention is to enable a complex lateral channel geometry with a high surface quality at low manufacturing costs.
  • the object is achieved according to the invention by means of a lateral channel compressor with the features described in claim 1.
  • the lateral channel compressor comprises an impeller which is arranged in a casing and which is supported so that it is rotatable around an axial rotational axis, said impeller comprising a plurality of impeller blades which are arranged in a working area, the lateral channel, which is formed by the casing.
  • the working area comprises a complex geometry and - when viewed in the axial direction - an undercut is formed.
  • the casing comprises a basic casing element, a front cover and at least one insert in order to form the undercut.
  • Geometries with undercuts can usually, in terms of manufacturing technology, only be manufactured at a very high cost. The reason for this is that when the casting process is used with reusable casting moulds, it is not possible to form undercuts due to the necessary deformation procedure. Undercuts of this type must be incorporated using costly post-processing stages, such as machining methods, for example.
  • the special design of the lateral channel compressor with the insert achieves the particular advantage that an undercut is formed only by the insert, so that the remaining casing parts can be manufactured simply and cost-effectively. Overall, this enables a lateral channel compressor with a high degree of effectiveness at low manufacturing costs.
  • At least the basic casing element and the cover are diecast parts which can be manufactured cost-effectively and in large piece numbers due to the diecasting procedure.
  • the option is also available of also forming the insert as a diecast part.
  • this can also be a formed sheet part, for example, or a plastic injection moulded part.
  • this is formed as an insert ring which circulates at least to a large extent.
  • the insert ring is here arranged so that it circulates around the axial rotational axis.
  • "circulating at least to a large extent” is understood in particular to mean that the insert ring circles around an angle range of approximately 330°, for example, and that it is only interrupted in the section between a pressure joint and an intake, and an interrupter in the lateral channel compressor, which is arranged therebetween. In the section between the suction inlet and the pressure outlet, the lateral channel is also interrupted.
  • the insert ring is formed as a circlip, and thus comprises a spring force or elasticity acting in the radial direction, so that it is clamped automatically without further means of attachment in the radial direction against the cover and/or the basic casing element. This measure also secures a defined radial position of the insert ring.
  • the insert is appropriately attached on the basic casing element and/or the cover.
  • the attachment is completed here for example via welding, via attachment pins or attachment screws.
  • the attachment is also, or alternatively, completed via a latch mechanism or a snap-on connection with the basic casing element and/or the cover.
  • the option is also available of attaching the insert via a press fit. As a result of the attachment, the position of the insert is defined both in the radial and the axial direction in a reliable and immovable manner.
  • the insert is clamped in particular between the basic casing element and the cover using a spring element which acts in the axial direction.
  • This spring element is here in particular a metal band or a rubber ring. It is therefore preferably also formed as a sealing element which circulates at least to a large extent, and which is almost ring-shaped.
  • the basic casing element and the cover are usually separated along a separation level which is oriented vertically to the axial rotational axis. It is appropriate that the insert is arranged on only one side of the separation level, i.e. either on the side of the basic casing element or on the cover, so that only one of these two parts needs to be formed for retaining the insert.
  • a boundary side of the insert lies in the separation level in its final assembled position, and that it therefore with this boundary side on the second part, preferably on the cover, supports itself or is pressed against the lid via the spring element.
  • the insert comprises, when seen in cross-section, a base side and on the working area side a rib which extends in the radial direction, with two side flanks, each of which form a partial wall section of the working area.
  • the flanks of the rib align in each case with the adjacent partial wall sections of the working area, which are formed from the basic casing element or from the cover.
  • the flanks of the rib thus run smoothly and free of edges and therefore homogeneously into the basic casing element or into the cover.
  • the insert therefore comprises on both sides on the rib two surface sections of the working area.
  • the two flow compartments each comprise an elliptical cross-section geometry.
  • a boundary is to a large extent created between the two flow compartments, i.e. their cross-section geometry is completely, or almost completely formed, with the exception of necessary or consciously selected gaps, by a tri-sectional casing and by a supporting ring for the impeller.
  • the lateral channel compressor comprises a dual-flow compartment lateral channel 2 which forms a working area, with two flow compartments 2A, 2B with an elliptical cross-section which are arranged adjacent to each other in the axial direction 4.
  • the lateral channel compressor comprises a multipart casing which comprises a basic casing element 6, a cover 8 and an insert 10 which is formed as an insert ring.
  • the insert 10 comprises a rear side 10A and on the working area side a rib 10B with two side flanks, which extends in to the working area.
  • the rib 10B separates the two flow compartments 2A, 2B in the radially outer partial section of the lateral channel 2 from each other and creates a boundary between them.
  • the two flanks each form an inner wall partial section of each flow compartment 2A, 2B.
  • the design of the insert 10 as an almost closed insert ring can be seen particularly clearly in the perspective view in Fig. 2 .
  • an impeller 12 is supported so that it is rotatable around a rotational axis which extends in the axial direction 4.
  • the impeller 12 is driven by a drive shaft and a drive motor which are not shown here in greater detail.
  • the impeller 12 extends in the radial direction 14 and comprises an impeller hub 16, to which a supporting ring 18 is attached, on which a plurality of impeller blades 20 are arranged in the circumferential direction or the rotational direction of the impeller 12.
  • the supporting ring 18 protrudes with its underside in the axial direction 4 beyond the impeller hub 16 on both sides.
  • separating rib 22 which extends in the radial direction 14, which separates the two flow compartments 2A, 2B from each other and creates a boundary between them. Between the casing and the impeller 12, a gap is located, which is sealed via a sealing arrangement 24. This is affixed with screws 26 in the axial direction 4.
  • the elliptical cross-sectional area of the two flow compartments 2A, 2B is limited overall, and is formed by partial inner wall sections of the three casing parts 6, 8, 10, together with the separating rib 22.
  • the partial inner wall sections thus form curved surfaces, in order to produce the elliptical cross-section contour.
  • the curvatures of the partial inner wall sections are here selected and adapted to each other in such a manner that the wall sections run into each other in the most homogeneous and smooth manner possible.
  • the individual wall sections are therefore essentially ananged so that they are aligned to each other.
  • the separating rib 22 extends in the radial direction 14 approximately over 3 ⁇ 4 of the lateral channel height. In the radial direction 14, the separating rib 22 is extended by the rib 10B, leaving free a gap 28.
  • the width of the gap is here of a sufficiently large dimension to prevent dust or fluff accumulating in this area.
  • the insert 10 is inserted into a recess 30 in the basic casing element 6. Its left front or boundary side 10C falls into a separation level 32 between the basic casing element 6 and the cover 8.
  • the insert 10 is pressed over the cover 8 against the boundary of the recess 30, so that the insert 10 is clamped overall between the two casing parts 6, 8 without additional auxiliary devices. This clamping attachment securely prevents the insert from being moved in the axial direction 4.
  • the insert 10 is formed as a type of circlip, as can be seen particularly clearly in Fig.
  • the insert 10 which comprises a spring force or elastic force which acts in the radial direction 14, so that through this spring force, the rear side 10A is pressed against the corresponding arrangement on the basic casing element 6.
  • the position of the insert 10 is also affixed in the radial direction 14.
  • the cover 8 is usually attached to the basic casing element using screws.
  • the insert 10 is retained solely by clamping in both the radial direction 14 and the axial direction 4. Additionally or as an alternative, the insert 10 is attached by welding, by screwing it on, or similar.
  • the individual parts are produced as separate parts.
  • the essential parts are the basic casing element 6, the cover 8, the insert 10 and the impeller 12, which - with the exception of the cover 8 - are shown in Fig. 3 .
  • the parts are formed in a diecasting procedure as metal diecast parts. This procedure makes it possible to manufacture large piece numbers at low cost.
  • a high surface quality is achieved via the manufacturing procedure, without requiziuag costly post-processing stages.
  • a very high dimensional accuracy is achievable with the diecasting procedure.
  • the insert 10 can also be manufactured using alternative manufacturing procedures, or from alternative materials.
  • the insert 10 is first inserted in the axial direction 4 into the basic casing element 6 into the prespecified recess.
  • the insert circulates completely around the lateral channel 2 and is only interrupted by an interrupter 34 shown in Fig. 3 , which is arranged between a suction inlet and a pressure outlet not shown in greater detail here.
  • the impeller 12 is placed onto the drive shaft which is not shown in greater detail here.
  • a spring element 36 is provided for positioning and affixing the insert 10 in the axial direction 4, which supports itself on the one hand on the basic casing element 6 and on a right boundary side 10D of the insert 10, and which presses the insert against the cover 8.
  • the spring element 36 is here preferably formed as a circulating spring ring, such as a metal band or a rubber ring, and at the same time, takes on a sealing function.
  • the left boundary side 10C of the insert 10 aligns in each case with the separation level 32.
  • the insert 10 it is also possible for the insert 10 to bridge the separation level 32, and for both casing parts 6, 8 to comprise a recess 30 for retaining the insert 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Massaging Devices (AREA)

Claims (12)

  1. Compresseur à canal latéral comprenant une roue (12) disposée dans un carter et supportée à rotation autour d'un axe de rotation axial (4), ladite roue comprenant une pluralité d'aubages (20) disposés dans une chambre de travail (2) formée par le carter, la chambre de travail (2) comprenant une saignée et le carter comprenant un élément de base (6), un couvercle (8) et un insert (10) de manière à former la saignée, caractérisé en ce que l'insert (10) présente une élasticité agissant dans une direction radiale (14) de façon à être serré contre le couvercle (8) et/ou l'élément de carter de base (6).
  2. Compresseur à canal latéral selon la revendication 1, dans lequel au moins l'élément de carter de base (6) et le couvercle (8) sont des pièces moulées sous pression.
  3. Compresseur à canal latéral selon l'une quelconque des revendications 1 ou 2, dans lequel l'insert (10) est réalisé sous forme de bague insert s'étendant circulairement, au moins en grande partie.
  4. Compresseur à canal latéral selon la revendication 3, dans lequel la bague insert prend la forme d'un circlip.
  5. Compresseur à canal latéral selon l'une quelconque des revendications précédentes, dans lequel l'insert (10) est fixé sur l'élément de carter de base (6) et/ou sur le couvercle (8).
  6. Compresseur à canal latéral selon l'une quelconque des revendications précédentes, dans lequel l'insert (10) est serré au moyen d'un élément ressort (36).
  7. Compresseur à canal latéral selon la revendication 6, dans lequel l'élément ressort (36) est, en même temps, réalisé en tant qu'élément d'étanchéité s'étendant circulairement.
  8. Compresseur à canal latéral selon l'une quelconque des revendications précédentes, dans lequel l'élément de carter de base (6) et le couvercle (8) sont séparés le long d'un niveau de séparation (32) qui est orienté dans une direction verticale par rapport à l'axe de rotation axial (4), et l'insert (10) est disposé uniquement sur un côté du niveau de séparation (32).
  9. Compresseur à canal latéral selon la revendication 8, dans lequel un côté de délimitation (10C) de l'insert (10) se situe dans le niveau de séparation (32).
  10. Compresseur à canal latéral selon l'une quelconque des revendications précédentes, dans lequel l'insert (10) comprend, vu en coupe transversale, un côté arrière (10A) et, du côté de la chambre de travail, une nervure (10B) qui s'étend en direction radiale, munie de deux flancs latéraux dont chacun forme une section de paroi partielle de la chambre de travail (2).
  11. Compresseur à canal latéral selon la revendication 10, dans lequel les flancs de la nervure (10B) sont alignés, dans chaque cas, avec une section de paroi partielle adjacente de la chambre de travail (2), formée à partir de l'élément de carter de base (6) et/ou du couvercle (8).
  12. Compresseur à canal latéral selon l'une quelconque des revendications précédentes, dans lequel la chambre de travail (2) est réalisée sous forme de canal latéral à compartiment double flux comportant deux compartiments d'écoulement (2A, 2B), et les compartiments d'écoulement (2A, 2B) présentent une géométrie de section transversale elliptique qui est, en particulier, formée quasi complètement par le carter et par un anneau support (18) de la roue (12).
EP06000867A 2005-02-02 2006-01-17 Compresseur à canal latéral Not-in-force EP1703136B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202005001604U DE202005001604U1 (de) 2005-02-02 2005-02-02 Seitenkanalverdichter

Publications (3)

Publication Number Publication Date
EP1703136A2 EP1703136A2 (fr) 2006-09-20
EP1703136A3 EP1703136A3 (fr) 2007-04-04
EP1703136B1 true EP1703136B1 (fr) 2009-04-15

Family

ID=36215652

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06000867A Not-in-force EP1703136B1 (fr) 2005-02-02 2006-01-17 Compresseur à canal latéral

Country Status (6)

Country Link
US (1) US20070059154A1 (fr)
EP (1) EP1703136B1 (fr)
AT (1) ATE428858T1 (fr)
DE (2) DE202005001604U1 (fr)
ES (1) ES2324887T3 (fr)
HK (1) HK1098523A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012023347B3 (de) * 2012-11-29 2014-01-30 Tni Medical Ag Kleiner, geräuscharmer Seitenkanalverdichter, insbesondere für Geräte in der Beatmungstherapie

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112015003162T5 (de) * 2014-07-09 2017-04-27 Mag Aerospace Industries, Llc Vakuumerzeuger-Strömungsumlenkeinrichtung
DE102015202947A1 (de) * 2015-02-18 2016-08-18 Mahle International Gmbh Pumpvorrichtung zum Antreiben von Blow-by-Gas
DE102015202943A1 (de) * 2015-02-18 2016-08-18 Mahle International Gmbh Pumpvorrichtung zum Antreiben von Blow-by-Gas
DE102015202946A1 (de) * 2015-02-18 2016-08-18 Mahle International Gmbh Pumpvorrichtung zum Antreiben von Blow-by-Gas
DE102015202948A1 (de) * 2015-02-18 2016-08-18 Mahle International Gmbh Pumpvorrichtung zum Antreiben von Blow-by-Gas
DE102016222430A1 (de) 2016-11-15 2018-05-17 Gardner Denver Deutschland Gmbh Seitenkanalverdichter
DE102018200637A1 (de) * 2018-01-16 2019-07-18 Robert Bosch Gmbh Seitenkanalverdichter für ein Brennstoffzellensystem zur Förderung und/oder Verdichtung von einem gasförmigen Medium

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JPS582495A (ja) * 1981-06-29 1983-01-08 Matsushita Electric Ind Co Ltd 渦流ポンプ装置
JPS59141795A (ja) * 1983-01-31 1984-08-14 Nippon Denso Co Ltd 再生ポンプ
DE8704066U1 (fr) * 1987-03-18 1988-07-14 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
JPH073238B2 (ja) * 1988-10-04 1995-01-18 ダイキン工業株式会社 渦流形ターボ機械
EP0372104B1 (fr) * 1988-12-05 1991-07-17 Siemens Aktiengesellschaft Compresseur à canal latéral
US5257916A (en) * 1992-11-27 1993-11-02 Walbro Corporation Regenerative fuel pump
US5586858A (en) * 1995-04-07 1996-12-24 Walbro Corporation Regenerative fuel pump
US5899673A (en) * 1996-10-16 1999-05-04 Capstone Turbine Corporation Helical flow compressor/turbine permanent magnet motor/generator
JPH11270487A (ja) * 1998-03-23 1999-10-05 Keihin Corp ウエスコ型ポンプ
US6425733B1 (en) * 2000-09-11 2002-07-30 Walbro Corporation Turbine fuel pump
JP2003155992A (ja) * 2001-11-20 2003-05-30 Denso Corp 燃料ポンプ
US6799941B2 (en) * 2002-03-26 2004-10-05 Ti Group Automotive Systems, L.L.C. Turbine fuel pump and method for calibrating

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012023347B3 (de) * 2012-11-29 2014-01-30 Tni Medical Ag Kleiner, geräuscharmer Seitenkanalverdichter, insbesondere für Geräte in der Beatmungstherapie
WO2014082892A1 (fr) 2012-11-29 2014-06-05 Tni Medical Ag Compresseur à canal latéral plus petit et moins bruyant, en particulier pour des appareils en thérapie respiratoire
US10532169B2 (en) 2012-11-29 2020-01-14 Tni Medical Ag Small, low-noise side channel compressor, in particular for devices in ventilation therapy

Also Published As

Publication number Publication date
DE202005001604U1 (de) 2006-06-08
ES2324887T3 (es) 2009-08-18
DE602006006240D1 (de) 2009-05-28
US20070059154A1 (en) 2007-03-15
EP1703136A3 (fr) 2007-04-04
HK1098523A1 (en) 2007-07-20
ATE428858T1 (de) 2009-05-15
EP1703136A2 (fr) 2006-09-20

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