EP1331400A3 - Side channel pump - Google Patents
Side channel pump Download PDFInfo
- Publication number
- EP1331400A3 EP1331400A3 EP03001089A EP03001089A EP1331400A3 EP 1331400 A3 EP1331400 A3 EP 1331400A3 EP 03001089 A EP03001089 A EP 03001089A EP 03001089 A EP03001089 A EP 03001089A EP 1331400 A3 EP1331400 A3 EP 1331400A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- channel
- channels
- walls
- opening
- 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.)
- Granted
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
- F04D29/18—Rotors
- F04D29/188—Rotors specially for regenerative pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Eine Seitenkanalpumpe (10) weist zwei parallele Pumpkanäle (24a,24b) auf, wobei ein Pumpenrad (12) mit zwei parallelen Halbkanälen (28a,28b) mit jeweils zueinander parallelen Pumpkammern (32a,32b) vorgesehen ist, die durch Schaufelwände (30) gebildet und voneinander getrennt sind. Die Pumpkammern (32a,32b) beider Halbkanäle (28a,28b) sind jeweils durch eine Kanaltrennwand (34) voneinander getrennt, wobei die Kanaltrennwand (34) Druckausgleichsöffnungen (36) aufweist, durch die ein Druckausgleich von der Pumpkammer (32a) des einen Halbkanals (28a) zu der Pumpkammer (32b) des anderen Halbkanals (28b) erfolgt. Die Druckausgleichsöffnungen (36) sind ausschließlich in der in Drehrichtung vorderen Hälfte der Kanaltrennwände (34) vorgesehen, wobei die hintere Hälfte der Kanaltrennwände (34) öffnungsfrei ausgebildet ist. Die Schaufelwände (30) sind um mindestens 10° zur Luvseite (40) geneigt angeordnet. Ferner ist die Öffnungslänge (a) der Druckausgleichsöffnung (36) kleiner als 2/5 der Kanaltrennwandlänge (b). Durch die Neigung der Schaufelwände (30) wird innerhalb der Pumpkammern ein hohes Druckgefälle erzeugt. Durch das hohe Druckgefälle wandern Gasblasen innerhalb der Pumpkammern schneller zur Leeseite, so dass hierdurch die Entlüftung verbessert wird. Gleichzeitig kann unter Erhaltung einer wirksamen Entlüftung die Druckausgleichsöffnung kleinflächiger ausgebildet sein, so dass die Turbulenzen in der zirkulären Flüssigkeitsströmung reduziert werden. Hierdurch wird einerseits ein Druckausgleich bzw. Gasaustausch zwischen den Pumpkammern (32a,32b) der beiden Pumpkanäle (24a,24b) ermöglicht, andererseits die durch die Druckausgleichsöffnung verursachten Turbulenzen und Verluste gering gehalten. A side channel pump (10) has two parallel pump channels (24a, 24b), a pump wheel (12) with two parallel half channels (28a, 28b), each with pump chambers (32a, 32b) parallel to one another, which is provided by vane walls (30) formed and separated from each other. The pump chambers (32a, 32b) of both half channels (28a, 28b) are each separated from one another by a channel partition (34), the channel partition (34) having pressure compensation openings (36) through which pressure compensation from the pump chamber (32a) of the one half channel (28a) to the pump chamber (32b) of the other half channel (28b). The pressure equalization openings (36) are provided exclusively in the front half of the channel dividing walls (34) in the direction of rotation, the rear half of the channel dividing walls (34) being designed without openings. The blade walls (30) are arranged inclined at least 10 ° to the windward side (40). Furthermore, the opening length (a) of the pressure compensation opening (36) is less than 2/5 of the duct partition length (b). Due to the inclination of the blade walls (30), a high pressure drop is generated within the pumping chambers. Due to the high pressure drop, gas bubbles within the pumping chambers move faster to the leeward side, which improves ventilation. At the same time, while maintaining effective ventilation, the pressure equalization opening can be designed with a small area, so that the turbulence in the circular liquid flow is reduced. This enables pressure equalization or gas exchange between the pumping chambers (32a, 32b) of the two pump channels (24a, 24b) on the one hand, and the turbulence and losses caused by the pressure equalization opening on the other hand are kept low.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10202366 | 2002-01-23 | ||
DE2002102366 DE10202366A1 (en) | 2002-01-23 | 2002-01-23 | Side channel pump |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1331400A2 EP1331400A2 (en) | 2003-07-30 |
EP1331400A3 true EP1331400A3 (en) | 2004-01-07 |
EP1331400B1 EP1331400B1 (en) | 2006-03-29 |
Family
ID=7712798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20030001089 Expired - Fee Related EP1331400B1 (en) | 2002-01-23 | 2003-01-20 | Side channel pump |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1331400B1 (en) |
DE (2) | DE10202366A1 (en) |
ES (1) | ES2256597T3 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3925396A1 (en) * | 1989-08-01 | 1991-02-07 | Swf Auto Electric Gmbh | Fuel delivery pump with impeller in pump chamber - has radial separation wall on impeller periphery forming delivery cells on both sides of separation wall |
JPH08334097A (en) * | 1995-06-07 | 1996-12-17 | Unisia Jecs Corp | Turbine pump |
US5807068A (en) * | 1995-02-08 | 1998-09-15 | Robert Bosch Gmbh | Flow pump for feeding fuel from a supply container to internal combustion engine of a motor vehicle |
EP1024296A2 (en) * | 1999-01-29 | 2000-08-02 | Mannesmann VDO Aktiengesellschaft | Impeller |
US20020001520A1 (en) * | 2000-05-27 | 2002-01-03 | Mathias Rollwage | Feeding aggregate for fuel |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19643728A1 (en) * | 1996-10-23 | 1998-04-30 | Mannesmann Vdo Ag | Feed pump |
DE19906130A1 (en) * | 1999-02-13 | 2000-08-17 | Mannesmann Vdo Ag | Feed pump |
-
2002
- 2002-01-23 DE DE2002102366 patent/DE10202366A1/en not_active Withdrawn
-
2003
- 2003-01-20 DE DE50302776T patent/DE50302776D1/en not_active Expired - Lifetime
- 2003-01-20 EP EP20030001089 patent/EP1331400B1/en not_active Expired - Fee Related
- 2003-01-20 ES ES03001089T patent/ES2256597T3/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3925396A1 (en) * | 1989-08-01 | 1991-02-07 | Swf Auto Electric Gmbh | Fuel delivery pump with impeller in pump chamber - has radial separation wall on impeller periphery forming delivery cells on both sides of separation wall |
US5807068A (en) * | 1995-02-08 | 1998-09-15 | Robert Bosch Gmbh | Flow pump for feeding fuel from a supply container to internal combustion engine of a motor vehicle |
JPH08334097A (en) * | 1995-06-07 | 1996-12-17 | Unisia Jecs Corp | Turbine pump |
EP1024296A2 (en) * | 1999-01-29 | 2000-08-02 | Mannesmann VDO Aktiengesellschaft | Impeller |
US20020001520A1 (en) * | 2000-05-27 | 2002-01-03 | Mathias Rollwage | Feeding aggregate for fuel |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 04 30 April 1997 (1997-04-30) * |
Also Published As
Publication number | Publication date |
---|---|
EP1331400B1 (en) | 2006-03-29 |
EP1331400A2 (en) | 2003-07-30 |
DE50302776D1 (en) | 2006-05-18 |
DE10202366A1 (en) | 2003-08-07 |
ES2256597T3 (en) | 2006-07-16 |
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