EP1331400A3 - Side channel pump - Google Patents

Side channel pump Download PDF

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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
Application number
EP03001089A
Other languages
German (de)
French (fr)
Other versions
EP1331400B1 (en
EP1331400A2 (en
Inventor
Dieter Bovensmann
Raimund Frielingsdorf
Alfred Kleinen
Stefan Kluth
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.)
TI Automotive Neuss GmbH
Original Assignee
TI Automotive Neuss 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 TI Automotive Neuss GmbH filed Critical TI Automotive Neuss GmbH
Publication of EP1331400A2 publication Critical patent/EP1331400A2/en
Publication of EP1331400A3 publication Critical patent/EP1331400A3/en
Application granted granted Critical
Publication of EP1331400B1 publication Critical patent/EP1331400B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

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.

Figure 00000001
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.
Figure 00000001
EP20030001089 2002-01-23 2003-01-20 Side channel pump Expired - Fee Related EP1331400B1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 04 30 April 1997 (1997-04-30) *

Also Published As

Publication number Publication date
DE10202366A1 (en) 2003-08-07
EP1331400B1 (en) 2006-03-29
DE50302776D1 (en) 2006-05-18
ES2256597T3 (en) 2006-07-16
EP1331400A2 (en) 2003-07-30

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