EP1165965B1 - Seitenkanalverdichter - Google Patents
Seitenkanalverdichter Download PDFInfo
- Publication number
- EP1165965B1 EP1165965B1 EP00920569A EP00920569A EP1165965B1 EP 1165965 B1 EP1165965 B1 EP 1165965B1 EP 00920569 A EP00920569 A EP 00920569A EP 00920569 A EP00920569 A EP 00920569A EP 1165965 B1 EP1165965 B1 EP 1165965B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- side channel
- cross
- section
- outlet port
- compressor according
- 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
Links
Images
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
- F04D23/00—Other rotary non-positive-displacement pumps
- F04D23/008—Regenerative pumps
Definitions
- the invention relates to a side channel compressor according to the preamble of claim 1.
- a generic side channel compressor is known from DE-A-876 285. With this Side channel blower tapers the cross section of the side channel from the inlet opening continuously to the outlet opening. The rejuvenation is said to improve the efficiency of the Increase the side channel blower by creating an even one in the side channel Pressure increase and an increase in volume flow results.
- the cross section of the The side channel is approximately elliptical.
- Another side channel compressor is known from DE 197 08 952 A1.
- This too Side channel blower tapers the cross section of the side channel from the inlet opening continuously to the outlet opening.
- the rejuvenation is said to improve the efficiency of the Increase the side channel blower by creating an even one in the side channel Pressure increase and an increase in volume flow results.
- the cross section of the According to this prior art, the side channel is rectangular, but with rounded corners.
- the object of the invention is to provide a side channel compressor with an increased To achieve efficiency.
- the flow conditions in the side channel are in the side channel compressor according to the invention optimized by the transitions of the wall areas delimiting the cross section very much are soft, so that transitions in the real sense are missing. This is through the Elliptical shape of the side channel reached.
- the gas flows from the blades of the compressor one, based on the blade axis, axial speed component in the Side channel and is deflected in this without causing extreme losses can. This results in a higher volume flow and a higher one Compressor capacity.
- the elliptical formation leads to thanks to the bevels associated with it a better manufacturability of the side channel by means of sand or die casting processes.
- the section of the side channel with an elliptical cross section can extend over the entire length extend of the side channel or only over a part.
- the section should include elliptical cross section on about half the flow path between the inlet opening and Start exhaust opening.
- the gas to be compressed already has one in this area experience noticeable compression to which the cross section should be adapted by is reduced.
- the section with an elliptical cross section should end in the area of the outlet opening where there is also the highest compression.
- the optimal performance of the compressor can only be achieved by tuning the Reduction of the cross section of the side channel to the type of gas and the efficiency of the compressor, in particular its speed, can be achieved. It is e.g. Not optimal if the cross section decreases extremely or too little, because the gas flow in the the first case is blocked and in the second case the compressibility of the gas is not complete is exploited.
- the cross-sectional area of the side channel in the section with elliptical Cross section is according to the preferred embodiment to the ratio of Adjusted density increase of the gas by reducing the cross-sectional area accordingly becomes.
- An optimal reduction of the cross-sectional area results if one is adopted approximately adiabatic isentropic compression of the gas to be compressed, the Cross-sectional area is reduced according to the decreasing gas volume.
- index 1 being the specific sizes at the inlet and index 2 identifies the specific sizes at the outlet of the side channel.
- the optimal cross-sectional areas can be found on any Determine the location of the side channel.
- Another embodiment of the invention provides that the side channel in front of the section with an elliptical cross section has a semicircular cross section. This semicircular The cross section then changes continuously into an increasingly flat ellipse.
- the width of the side channel should preferably remain constant over its entire length, so that the reduction in cross section only over the reduced depth, but with adapted ellipse shape.
- the side channel is horseshoe-shaped in a side view trending so that there is a large side channel length. Extensions at the ends of the Side channels form the inlet or outlet opening.
- the side channel compressor according to the invention can be designed in one or more stages, the cross-sectional area of the inlet opening of a subsequent stage preferably that Cross-sectional area of the outlet opening corresponds to the immediately preceding stage. In order to to prevent the gas in the side channel between successive Stages undergoes a change of state.
- the individual stages are preferably all provided with a side channel, as before has been defined, i.e. with a continuously decreasing cross-sectional area between Inlet opening and outlet opening. Because the pressure curve with a multi-stage If the compressor is different from a single-stage compressor, the Reduction of the cross-sectional area to be adapted to this effect. So would be the same Pressure increase between the inlet and outlet of a two-stage and a one-stage Compressor in the two-stage compressor only half of the side channel taper per stage compared to that of the single-stage compressor.
- a drive motor 10 In the side channel blower shown in FIG. 1, there is a drive motor 10, a first stage 12 and a second stage 14 integrated in one unit. With 16 a housing is designated. Impellers 20, 22 of stages 12 and 14 are attached to a drive shaft, which in turn is rotated by the drive motor 10.
- a first housing cover 30 on the Housing 16 is screwed, has a side channel 32 of the first stage.
- On the opposite side is connected to the housing 16, a second housing cover 26, which has a side channel 28.
- the first stage 12 has inlet openings and Outlet openings, which will be explained with reference to Figure 2.
- the outlet opening of the first stage is through a side channel, not shown, in the housing with the inlet opening second stage 14 connected.
- the channel and the cross sections of the outlet opening of the first and the inlet opening of the second stage are designed so that none Cross-sectional change between the first and second stage in the area of the side channel is present.
- the housing cover 30 is shown in FIG. 2 alone.
- the side channel 32 formed therein is essentially horseshoe-shaped and has a 270 ° extension circular section (extending from section line A to section line E).
- a Inlet opening 42 upstream of section line A extends over approximately 15 ° and forms one Kind of extension of the side channel 32.
- Downstream of the section line E is also one Continuous outlet opening 44 is provided.
- the side channel 32 has the same width from the section line A to the section line E, as can also be seen from the cutting sequence in FIG. 3, which only shows the side channel itself At the beginning, at the section line A, the side channel still has a semicircular shape Cross section, the center of the semicircle even slightly below the plane Surface 46 of the cover 30 is located, from which the side channel 32 extends into the interior of the cover extends. In FIG. 3 the distance 46 from the center M is given as 1 mm.
- the ellipse half, the side channel defined, so to speak, is compressed with increasing length of the flow path.
- the Decrease in cross-sectional area is the steadily reduced on the flow path specific volume of the gas to be compressed assuming an adiabatic isentropic Adjusted state change. This increases the efficiency of the side channel blower optimized.
- the cross section of the side channel 32 which is continuous and continuous from a semicircle changed to an increasingly flat ellipse, is characterized by excellent Flow conditions in the side channel 32, since only slight flow losses occur.
- the efficiency of the side channel blower is also so high because, as mentioned, the Cross-sectional profile of the change in state of the compressed gas is adapted.
- FIGS A slightly modified housing cover 130 is shown in FIGS the side channel 132 has a slightly different inlet and outlet area.
- the inlet area extends over 15 ° to 50 °, as does the outlet area.
- Numeral 142 is the inlet of the first stage and 144 is the outlet of first stage, which leads to the inlet opening of the second stage.
- the second stage 14 has a side channel, which is also tapered along its entire length.
- This side channel also begins with a semicircular cross-section, whereby this Cross-section, however, has an area which corresponds to the area of the side channel at the outlet opening 44 corresponds to the elliptical cross section.
- the side channel of the second stage then changes continuously to an increasingly flat ellipse, as shown in the figures 2 to 5 is shown.
- FIG. 6 shows the increase that can be achieved by reducing the side channel cross section of efficiency.
- Side channel blowers There are three different ones for the courses shown Side channel blowers have been used, which are measured at different speeds were.
- a side channel blower labeled "Series" has one semicircular cross section without taper.
- a modified to this Side channel compressor according to the invention with an elliptical cross section has a Cross-section reduction of 15% between inlet opening and outlet opening on and off further compressors a cross-sectional reduction of 30%.
- Figure 6 not only shows that a significant increase in efficiency is achievable, but also that this Efficiency increase is very dependent on the speed. As explained earlier a cross-sectional reduction by 15%, for example, cannot be lead to an enormous increase in efficiency at different speeds.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Compressor (AREA)
- Motor Or Generator Cooling System (AREA)
- Massaging Devices (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Description
erhält man:
Claims (10)
- Seitenkanalverdichter mit
einer Einlaßöffnung (42; 142) für Gas und
einer Auslaßöffnung (44; 144) für verdichtetes Gas sowie
einem Seitenkanal (32; 132), der die Einlaßöffnung (42; 142) mit der Auslaßöffnung (44; 144) strömungsmäßig verbindet,
wobei sich der Querschnitt des Seitenkanals (32; 132) zwischen der Einlaßöffnung (42; 142) und der Auslaßöffnung (44; 144) verringert und
wobei der Seitenkanal (32; 132) wenigstens einen Abschnitt hat, in dem er einen Querschnitt in Form einer Ellipsenhälfte aufweist und in dem sich die maximale Tiefe des Seitenkanals (32; 132) in Richtung zur Auslaßöffnung (44; 144) kontinuierlich verringert,
dadurch gekennzeichnet, daß
die große Achse der den Querschnitt bestimmenden Ellipse geringfügig innerhalb des Deckels (26, 30) des Seitenkanalverdichters liegt, der den Seitenkanal (32; 132) aufweist. - Seitenkanalverdichter nach Anspruch 1, dadurch gekennzeichnet, daß der Abschnitt mit elliptischem Querschnitt im Bereich der Auslaßöffnung (44; 144) endet.
- Seitenkanalverdichter nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Abschnitt mit elliptischem Querschnitt spätestens auf dem halben Strömungsweg zwischen Einlaßöffnung (42; 142) und Auslaßöffnung (44; 144) beginnt.
- Seitenkanalverdichter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Seitenkanal (32; 132) vor dem Abschnitt mit elliptischem Querschnitt einen halbkreisförmigen Querschnitt hat.
- Seitenkanalverdichter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Breite des Seitenkanals (32; 132) über seine gesamte Länge konstant bleibt.
- Seitenkanalverdichter nach einem der vorhergehenden Anspräche, dadurch gekennzeichnet, daß die Querschnittsfläche des Seitenkanals (32; 132) in dem Abschnitt mit elliptischem Querschnitt dem Verhältnis der Dichteerhöhung des Gases entsprechend stetig reduziert ist.
- Seitenkanalverdichter nach Anspruch 6, dadurch gekennzeichnet, daß die Querschnittsfläche des Seitenkanals (32; 132) in seinem Abschnitt mit elliptischem Querschnitt unter der Annahme einer annähernd adiabat isentropen Verdichtung des zu verdichtenden Gases dem sich verringernden Gasvolumen entsprechend verringert wird.
- Seitenkanalverdichter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Seitenkanal (32; 132) in Seitenansicht im wesentlichen hufeisenförmig verläuft.
- Seitenkanalverdichter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Verdichter mehrstufig ausgebildet ist und die Querschnittsfläche der Einlaßöffnung einer nachfolgenden Stufe der Querschnittsfläche der Auslaßöffnung (44; 144) der unmittelbar vorhergehenden Stufe entspricht
- Seitenkanalverdichter nach Anspruch 9, dadurch gekennzeichnet, daß in mehreren, vorzugsweise allen Stufen die Querschnittsfläche zwischen Auslaßöffnung (44; 144) und Einlaßöffnung (42; 142) entsprechend der Ansprüche 1 bis 9 ausgebildet ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19913950A DE19913950A1 (de) | 1999-03-26 | 1999-03-26 | Seitenkanalverdichter |
DE19913950 | 1999-03-26 | ||
PCT/EP2000/002624 WO2000058629A1 (de) | 1999-03-26 | 2000-03-24 | Seitenkanalverdichter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1165965A1 EP1165965A1 (de) | 2002-01-02 |
EP1165965B1 true EP1165965B1 (de) | 2003-07-30 |
Family
ID=7902649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00920569A Expired - Lifetime EP1165965B1 (de) | 1999-03-26 | 2000-03-24 | Seitenkanalverdichter |
Country Status (11)
Country | Link |
---|---|
US (1) | US6779968B1 (de) |
EP (1) | EP1165965B1 (de) |
JP (1) | JP2002540350A (de) |
KR (1) | KR100637090B1 (de) |
CN (1) | CN1119531C (de) |
AT (1) | ATE246316T1 (de) |
AU (1) | AU763252B2 (de) |
DE (2) | DE19913950A1 (de) |
DK (1) | DK1165965T3 (de) |
ES (1) | ES2203451T3 (de) |
WO (1) | WO2000058629A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3869098A1 (de) | 2018-07-19 | 2021-08-25 | Brunswick Corporation | Gebläsevorgemischbrennervorrichtung |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20020370A1 (it) * | 2002-05-06 | 2003-11-06 | Varian Spa | Stadio di pompaggio per pompa da vuoto. |
DE202004019506U1 (de) * | 2004-12-17 | 2006-04-20 | Nash_Elmo Industries Gmbh | Seitenkanalverdichter |
US7425113B2 (en) * | 2006-01-11 | 2008-09-16 | Borgwarner Inc. | Pressure and current reducing impeller |
US7722311B2 (en) * | 2006-01-11 | 2010-05-25 | Borgwarner Inc. | Pressure and current reducing impeller |
JP5172115B2 (ja) * | 2006-07-27 | 2013-03-27 | シナノケンシ株式会社 | 渦流式圧縮機及び渦流式圧縮機の製造方法 |
DE102007053016A1 (de) | 2007-11-05 | 2009-05-07 | Gardner Denver Deutschland Gmbh | Seitenkanalverdichter |
DE102012023347B3 (de) * | 2012-11-29 | 2014-01-30 | Tni Medical Ag | Kleiner, geräuscharmer Seitenkanalverdichter, insbesondere für Geräte in der Beatmungstherapie |
ITVI20130304A1 (it) * | 2013-12-19 | 2015-06-20 | Turato Srl Off | Impianto a vuoto stabilizzato per essiccatoio di pelli industriali a pianali di evaporazione multipli |
JP6639880B2 (ja) * | 2015-11-24 | 2020-02-05 | 愛三工業株式会社 | 渦流ポンプ |
DE102018219995A1 (de) * | 2018-11-22 | 2020-05-28 | Robert Bosch Gmbh | Seitenkanalverdichter für ein Brennstoffzellensystem zur Förderung und/oder Verdichtung von einem gasförmigen Medium |
EP3594498B1 (de) | 2019-11-06 | 2022-01-05 | Pfeiffer Vacuum Gmbh | System mit einer gasrezirkulationseinrichtung |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE876285C (de) * | 1940-09-29 | 1953-05-11 | Siemens Ag | Ringverdichter |
GB606127A (en) * | 1944-10-30 | 1948-08-06 | Bendix Aviat Corp | Blowers |
DE2131952C3 (de) * | 1971-06-26 | 1974-05-09 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Ringkanalgebläse |
JPS4977210A (de) * | 1972-11-27 | 1974-07-25 | ||
JPH0343696A (ja) * | 1989-07-06 | 1991-02-25 | Daikin Ind Ltd | 渦流形真空ポンプ |
JP2844966B2 (ja) * | 1991-06-18 | 1999-01-13 | 株式会社日立製作所 | 渦流ポンプ |
DE4242474A1 (de) * | 1992-12-16 | 1994-06-23 | Sel Alcatel Ag | Vorrichtung zum Fördern eines gasförmigen Mediums |
US5375971A (en) * | 1993-10-04 | 1994-12-27 | Ford Motor Company | Automotive fuel pump flow channel design |
US5527149A (en) * | 1994-06-03 | 1996-06-18 | Coltec Industries Inc. | Extended range regenerative pump with modified impeller and/or housing |
DE59609719D1 (de) * | 1995-09-15 | 2002-10-31 | Siemens Ag | Seitenkanalverdichter |
US5819524A (en) * | 1996-10-16 | 1998-10-13 | Capstone Turbine Corporation | Gaseous fuel compression and control system and method |
DE19708952A1 (de) * | 1997-03-05 | 1998-09-17 | Busch Gmbh K | Seitenkanalverdichter mit sich verjüngendem Kanalquerschnitt |
DE19736678A1 (de) * | 1997-08-22 | 1999-02-25 | Rietschle Werner Gmbh & Co Kg | Mehrstufige Seitenkanalpumpe |
-
1999
- 1999-03-26 DE DE19913950A patent/DE19913950A1/de not_active Withdrawn
-
2000
- 2000-03-24 CN CN00805576A patent/CN1119531C/zh not_active Expired - Fee Related
- 2000-03-24 KR KR1020017012119A patent/KR100637090B1/ko not_active IP Right Cessation
- 2000-03-24 DE DE50003108T patent/DE50003108D1/de not_active Expired - Fee Related
- 2000-03-24 ES ES00920569T patent/ES2203451T3/es not_active Expired - Lifetime
- 2000-03-24 AU AU41098/00A patent/AU763252B2/en not_active Ceased
- 2000-03-24 EP EP00920569A patent/EP1165965B1/de not_active Expired - Lifetime
- 2000-03-24 JP JP2000608093A patent/JP2002540350A/ja active Pending
- 2000-03-24 DK DK00920569T patent/DK1165965T3/da active
- 2000-03-24 AT AT00920569T patent/ATE246316T1/de not_active IP Right Cessation
- 2000-03-24 WO PCT/EP2000/002624 patent/WO2000058629A1/de active IP Right Grant
- 2000-03-26 US US09/937,393 patent/US6779968B1/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3869098A1 (de) | 2018-07-19 | 2021-08-25 | Brunswick Corporation | Gebläsevorgemischbrennervorrichtung |
Also Published As
Publication number | Publication date |
---|---|
KR20020002406A (ko) | 2002-01-09 |
DK1165965T3 (da) | 2003-11-17 |
CN1345400A (zh) | 2002-04-17 |
KR100637090B1 (ko) | 2006-10-23 |
DE19913950A1 (de) | 2000-09-28 |
DE50003108D1 (de) | 2003-09-04 |
JP2002540350A (ja) | 2002-11-26 |
AU4109800A (en) | 2000-10-16 |
WO2000058629A1 (de) | 2000-10-05 |
ATE246316T1 (de) | 2003-08-15 |
CN1119531C (zh) | 2003-08-27 |
US6779968B1 (en) | 2004-08-24 |
ES2203451T3 (es) | 2004-04-16 |
AU763252B2 (en) | 2003-07-17 |
EP1165965A1 (de) | 2002-01-02 |
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