EP1177384A1 - Seitenkanalmaschine - Google Patents
SeitenkanalmaschineInfo
- Publication number
- EP1177384A1 EP1177384A1 EP00936659A EP00936659A EP1177384A1 EP 1177384 A1 EP1177384 A1 EP 1177384A1 EP 00936659 A EP00936659 A EP 00936659A EP 00936659 A EP00936659 A EP 00936659A EP 1177384 A1 EP1177384 A1 EP 1177384A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- side channel
- contour
- channel machine
- housing
- gap
- 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.)
- Withdrawn
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
- 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
-
- 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.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19921765A DE19921765A1 (de) | 1999-05-11 | 1999-05-11 | Seitenkanalmaschine |
DE19921765 | 1999-05-11 | ||
PCT/DE2000/001379 WO2000068577A1 (de) | 1999-05-11 | 2000-05-02 | Seitenkanalmaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1177384A1 true EP1177384A1 (de) | 2002-02-06 |
Family
ID=7907753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00936659A Withdrawn EP1177384A1 (de) | 1999-05-11 | 2000-05-02 | Seitenkanalmaschine |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1177384A1 (de) |
JP (1) | JP2002544428A (de) |
KR (1) | KR20020008183A (de) |
CN (1) | CN1350619A (de) |
DE (1) | DE19921765A1 (de) |
WO (1) | WO2000068577A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004057991B4 (de) | 2004-12-01 | 2018-03-29 | Tni Medical Ag | Gehäuseschale, Laufrad sowie Seitenkanalverdichter |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10212505A1 (de) * | 2002-03-20 | 2003-10-02 | Siemens Ag | Seitenkanalpumpe |
DE20214104U1 (de) * | 2002-09-12 | 2003-04-03 | Nash Elmo Ind Gmbh | Seitenkanalverdichter |
DE10315779A1 (de) * | 2003-04-07 | 2004-11-04 | J. Eberspächer GmbH & Co. KG | Gebläse, insbesondere Verbrennungsluftgebläse für ein Fahrzeugheizgerät |
DE102007046014A1 (de) | 2007-09-26 | 2009-04-02 | Daimler Ag | Pumpe und Brennstoffzellensystem mit einer Pumpe |
US20140017099A1 (en) * | 2012-07-16 | 2014-01-16 | General Electric Company | Turbocharger system with reduced thrust load |
CN103321945A (zh) * | 2013-06-21 | 2013-09-25 | 黄石市建材节能设备总厂 | 高效z型迷宫式密封风机 |
DE102014224283A1 (de) * | 2014-11-27 | 2016-06-02 | Robert Bosch Gmbh | Verdichter mit einem Dichtkanal |
DE102014224285A1 (de) | 2014-11-27 | 2016-06-02 | Robert Bosch Gmbh | Verdichter mit einem Dichtkanal |
DE102017215739A1 (de) | 2017-09-07 | 2019-03-07 | Robert Bosch Gmbh | Seitenkanalverdichter für ein Brennstoffzellensystem zur Förderung und/oder Verdichtung von einem gasförmigen Medium |
DE102017215731A1 (de) * | 2017-09-07 | 2019-03-07 | Robert Bosch Gmbh | Seitenkanalverdichter für ein Brennstoffzellensystem zur Förderung und/oder Verdichtung von einem gasförmigen Medium |
DE102017220623A1 (de) | 2017-11-17 | 2019-05-23 | Robert Bosch Gmbh | Seitenkanalverdichter für ein Brennstoffzellensystem zur Förderung und/oder Ver-dichtung von einem gasförmigen Medium |
CN109026819B (zh) * | 2018-06-22 | 2020-02-18 | 浙江大学 | 一种异型齿双迷宫密封结构及一种核主泵用带定位的异型齿口环密封结构 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1237157A (fr) * | 1959-05-26 | 1960-07-29 | Hispano Suiza Sa | Perfectionnements apportés aux installations à compresseur pour flux gazeux devant être partiellement recyclé |
DE2135093B2 (de) * | 1971-07-14 | 1974-06-06 | Fa. J. Eberspaecher, 7300 Esslingen | Seitenkanalgebläse, insbesondere für brennstoffbetriebene Heizgeräte |
CH560326A5 (de) * | 1972-09-13 | 1975-03-27 | Siemens Ag | |
DE2244933A1 (de) | 1972-09-13 | 1974-03-21 | Siemens Ag | Stroemungsmaschine, insbesondere seitenkanalverdichter |
IT1240003B (it) * | 1990-04-24 | 1993-11-27 | Nuovopignone-Industrie Meccaniche Efonderia | Perfezionamenti in un compressore di tipo rigenerativo a camera toroidale |
JP2917563B2 (ja) * | 1991-04-15 | 1999-07-12 | 株式会社デンソー | 渦流式ポンプ |
US5658126A (en) * | 1994-10-20 | 1997-08-19 | Siemens Aktiengesellschaft | Side channel compressor |
DE59606641D1 (de) * | 1995-09-13 | 2001-04-26 | Siemens Ag | Seitenkanalverdichter |
US5743710A (en) * | 1996-02-29 | 1998-04-28 | Bosch Automotive Motor Systems Corporation | Streamlined annular volute for centrifugal blower |
-
1999
- 1999-05-11 DE DE19921765A patent/DE19921765A1/de not_active Ceased
-
2000
- 2000-05-02 WO PCT/DE2000/001379 patent/WO2000068577A1/de not_active Application Discontinuation
- 2000-05-02 KR KR1020017014321A patent/KR20020008183A/ko not_active Application Discontinuation
- 2000-05-02 EP EP00936659A patent/EP1177384A1/de not_active Withdrawn
- 2000-05-02 CN CN00807428A patent/CN1350619A/zh active Pending
- 2000-05-02 JP JP2000617332A patent/JP2002544428A/ja active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO0068577A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004057991B4 (de) | 2004-12-01 | 2018-03-29 | Tni Medical Ag | Gehäuseschale, Laufrad sowie Seitenkanalverdichter |
Also Published As
Publication number | Publication date |
---|---|
CN1350619A (zh) | 2002-05-22 |
WO2000068577A1 (de) | 2000-11-16 |
JP2002544428A (ja) | 2002-12-24 |
KR20020008183A (ko) | 2002-01-29 |
DE19921765A1 (de) | 2000-11-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20010920 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NASH-ELMO INDUSTRIES GMBH |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NASH-ELMO INDUSTRIES GMBH |
|
17Q | First examination report despatched |
Effective date: 20040319 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB IT |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20040730 |