EP0884479B1 - Förderpumpe - Google Patents
Förderpumpe Download PDFInfo
- Publication number
- EP0884479B1 EP0884479B1 EP98105375A EP98105375A EP0884479B1 EP 0884479 B1 EP0884479 B1 EP 0884479B1 EP 98105375 A EP98105375 A EP 98105375A EP 98105375 A EP98105375 A EP 98105375A EP 0884479 B1 EP0884479 B1 EP 0884479B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inlet
- feed pump
- annular channel
- channel
- liquid
- 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
- 239000007788 liquid Substances 0.000 claims description 30
- 239000000446 fuel Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000005352 clarification Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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
- F04D5/00—Pumps with circumferential or transverse flow
- F04D5/002—Regenerative pumps
- F04D5/003—Regenerative pumps of multistage type
- F04D5/005—Regenerative pumps of multistage type the stages being radially offset
-
- 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
- F04D5/002—Regenerative pumps
Definitions
- the invention relates to a feed pump with a driven, in a pump housing rotating impeller, in which a wreath of vane chambers in at least one of its end faces delimiting guide vanes are arranged with a arranged in the area of the guide vanes in the pump housing partially annular channel, which with the vane chambers for conveying a liquid from an inlet channel an outlet channel forms a delivery chamber and with at least two arranged one behind the other in the direction of flow Inlet channels.
- Such feed pumps are peripheral or side channel pumps are known and are used, for example, to deliver fuel or washing liquid from a window cleaning system a motor vehicle used. This creates the guide vanes in the delivery chamber a cross to the direction of movement of the guide vanes circulating flow.
- the Feed pump is characterized by a particularly low maintenance Operation off. Furthermore, the feed pump can be very generate high delivery pressures. With such a feed pump can, however, especially when flowing into the delivery chamber volatile liquids such as fuel or evaporate the solvent of a washing liquid and thus form gas bubbles.
- the gas bubbles are all the more common the higher the temperature of the liquid and the lower is the pressure in the inlet duct.
- the gas bubbles lead to a strong reduction in the delivery capacity of the delivery pump.
- the gas bubbles create a cavitation on Pump housing. This cavitation leads to permanent destruction the wall of the partially annular channel and then to a reduced delivery rate of the delivery pump.
- a feed pump known from US 5,580,213 has several Pump stages with several impellers. This allows the Pressure increase in the feed pump take place gradually, see above that evaporation of the liquid is avoided.
- This Feed pump has the disadvantage, however, that several impellers a considerable constructive to generate several pump stages Cause effort. As a result, the feed pump exists from very many components, which are complex to each other must be aligned and assembled.
- the US 4,556,363 shows a feed pump with several, on one single impeller arranged pump stages.
- the first pump stage draws fuel in through two inlet channels, while the second pump stage serves to increase the pressure.
- vapor bubbles are not reliable with this feed pump avoided.
- a feed pump is known from US 3,233,551 in which a partial flow branches off from the inlet duct and is fed to the delivery chamber.
- This feed pump has very large radial dimensions.
- the invention is based on the problem of a feed pump of the type mentioned at the outset so that they evaporate of the fuel largely prevented and if possible is inexpensive to manufacture.
- this problem is solved in that one of the inlet channels in the radially inner part-ring-shaped Channel and a second inlet channel in the outer part-annular Channel opens and the radially inner ring part Channel connected to the radially outer part-annular channel is.
- the liquid to be pumped is initially divided into the inlet channels and then arrives at various points in the delivery chamber. hereby experiences the part of the flow through the first inlet channel Liquid first increases and then becomes with the through the second inlet channel into the delivery chamber entered liquid mixed. That is why it becomes a strong one Vacuum in the area of the inlet channels avoided and thus compared to a feed pump with a single inlet channel the risk of the liquid evaporating clearly reduced.
- the feed pump according to the invention only requires one only impeller and thus consists of very few components. As a result, the feed pump according to the invention is special inexpensive to manufacture. By concentrating each other enclosing, partially annular channels has the invention Feed pump especially small radial dimensions.
- a feed pump is used on both sides of the impeller delivery chambers are arranged, the delivery chambers for overflowing the liquid from the one delivery chamber have a connection in the other delivery chamber.
- the feed pump according to the invention is flowed through axially and therefore has particularly small dimensions when the inlet channels in a first inlet-side housing part of the Pump housing and the outlet channel in one of the inlet side Housing part opposite housing part on the outlet side are arranged. With this design you can the feed pump without complex laying of lines, for example in a conveyor unit for a fuel tank Fasten.
- the number of Inlet channels can be according to another advantageous one Keep development of the invention particularly low if one of the inlet channels in the radially inner part-ring-shaped Channel and a second inlet channel in the outer part-annular Channel opens and the radially inner ring part Channel connected to the radially outer part-annular channel is.
- the feed pump according to the invention is special inexpensive to manufacture.
- connection of the radially inner part-ring-shaped channel with the outer part-annular channel is designed according to a other advantageous further development of the invention constructively particularly simple if the radially inner part-annular channel via an integrated in one of the housing parts of the feed pump, channel-shaped overflow channel with the radially outer part-annular channel is connected.
- this design can be the housing parts of the feed pump inexpensive, for example in an axially demoldable Make the sintered mold.
- FIG. 1 shows an electric motor according to the invention 1 driven, designed as a side channel pump Feed pump 2 with an inlet-side housing part 3 and an outlet-side housing part 4.
- the housing parts 3, 4 are biased against an annular spacer 5. Between the housing parts 3, 4 is one on one Shaft 6 of the electric motor 1 attached impeller 7 rotatable arranged.
- the inlet-side housing part 3 has two Inlet channels 8, 9, each in a partially annular Channel 10, 11 open.
- the two part-rings Channels 10, 11 are arranged concentrically to one another.
- the outlet-side housing part 4 has a single partial ring Channel 12, which opens into an outlet channel 13.
- the partial annular channel 12 of the outlet-side housing part 4 is radial up to the range of inner partial annular channel 11 of the inlet side Housing part 3 guided overflow channel 14 connected. at a rotation of the impeller 7 is a to be promoted Liquid from the two inlet channels 8, 9 to the Outlet duct 13 promoted.
- the feed pump 2 is here flows axially.
- the inlet-side housing part 3 from FIG. 1 is in one View seen from the impeller 7 shown in Figure 2.
- the radially outer part-annular channel 10 and the inner part-annular channel 11 each extend over an angular range of approximately 270 ° to 320 °.
- the inlet channels 8, 9 are each at one end of the partially annular channels 10, 11 arranged.
- FIG. 3 shows the housing part 4 on the outlet side Figure 1 seen from the impeller 7.
- the partial ring Channel 12 opens into the outlet channel 13.
- At its the The end facing away from the outlet duct 13 is the part-ring-shaped one Channel 12 with the channel-shaped overflow channel 14 connected.
- the feed pump shown in Figure 1 thus has a from the in the radially inner part-annular channel 11th opening inlet duct 9 to the outlet duct 13 Delivery chamber 21 for delivering the liquid.
- a second delivery chamber 22 extends from the radially outer partially annular channel 10 opening inlet channel 8 to the end of the radially outer part-annular Channel 10 of the inlet-side housing part 3.
- the overflow channel 14 shown in Figure 3 ends the inlet channel 8 of the radially outer part-ring-shaped Channel 10 opposite side of the impeller 7.
- FIG. 4 shows one of the inlet channels 8 from FIG. 2 in a sectional view along the line IV - IV.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
- Fig.1
- eine schematische Darstellung einer erfindungsgemäßen Förderpumpe in einem Längsschnitt,
- Fig.2
- ein einlassseitiges Gehäuseteil eines Pumpengehäuses aus Figur 1,
- Fig.3
- ein auslassseitiges Gehäuseteil eines Pumpengehäuses aus Figur 1,
- Fig.4
- einen Schnitt durch einen Einlasskanal des Gehäuseteils aus Figur 2 entlang der Linie IV - IV.
Claims (6)
- Förderpumpe (2) mit einem angetriebenen, sich in einem Pumpengehäuse drehenden Laufrad (7), in welchem in zumindest einer seiner Stirnseiten einen Kranz Schaufelkammern (15-17) begrenzende Leitschaufeln (18-20) angeordnet sind, mit einem im Bereich der Leitschaufeln (18-20) in dem Pumpengehäuse angeordneten teilringförmigen Kanal (10-12), welcher mit den Schaufelkammern (15-17) zum Fördern einer Flüssigkeit von einem Einlasskanal (8, 9) zu einem Auslasskanal (13) eine Förderkammer bildet und mit zumindest zwei in Strömungsrichtung gesehen hintereinander angeordneten Einlasskanälen (8, 9), dadurch gekennzeichnet, dass einer der Einlasskanäle (9) in den radial inneren teilringförmigen Kanal (11) und ein zweiter Einlasskanal (8) in den äußeren teilringförmigen Kanal (10) mündet und der radial innere teilringförmige Kanal (11) mit dem radial äußeren teilringförmigen Kanal (12) verbunden ist.
- Förderpumpe nach Anspruch 1, bei der beidseitig des Laufrades Förderkammern angeordnet sind, welche zum Überströmen der Flüssigkeit von der einen Förderkammer in die andere Förderkammer eine Verbindung aufweisen,
dadurch gekennzeichnet, dass die Einlasskanäle (8, 9) in einem ersten einlassseitigen Gehäuseteil (3) des Pumpengehäuses und der Auslasskanal (13) in einem dem einlassseitigen Gehäuseteil (3) gegenüberstehenden auslassseitigen Gehäuseteil (4) angeordnet ist. - Förderpumpe nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der radial innere teilringförmige Kanal (11) über einen in einem der Gehäuseteile (4) der Förderpumpe (2) eingearbeiteten, rinnenartig gestalteten Überströmkanal (14) mit dem radial äußeren teilringförmigen Kanal (12) verbunden ist.
- Förderpumpe nach Anspruch 3, dadurch gekennzeichnet, dass der Überströmkanal (14) in dem auslassseitigen Gehäuseteil (4) eingearbeitet ist und dass der radial innere Kranz der Schaufelkammern (16) das Laufrad (7) axial durchdringt.
- Förderpumpe nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die teilringförmigen Kanäle (10, 11) bei jedem der Einlasskanäle (8, 9) jeweils eine Querschnittserweiterung aufweisen.
- Förderpumpe nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in den Einlasskanälen (8), jeweils ein Leitelement (23) zur tangentialen Zuführung der Flüssigkeit in den teilringförmigen Kanal (10) angeordnet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19725249A DE19725249C2 (de) | 1997-06-14 | 1997-06-14 | Förderpumpe |
DE19725249 | 1997-06-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0884479A1 EP0884479A1 (de) | 1998-12-16 |
EP0884479B1 true EP0884479B1 (de) | 2004-05-19 |
Family
ID=7832521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98105375A Expired - Lifetime EP0884479B1 (de) | 1997-06-14 | 1998-03-25 | Förderpumpe |
Country Status (3)
Country | Link |
---|---|
US (1) | US6152688A (de) |
EP (1) | EP0884479B1 (de) |
DE (2) | DE19725249C2 (de) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19744037C1 (de) * | 1997-10-06 | 1999-06-02 | Mannesmann Vdo Ag | Förderpumpe |
DE19926587A1 (de) * | 1999-06-11 | 2000-12-14 | Mannesmann Vdo Ag | Kraftstoffpumpe für ein Kraftfahrzeug |
ES2194667T3 (es) * | 1999-11-23 | 2003-12-01 | Siemens Ag | Bomba para carburante. |
DE10013908A1 (de) * | 2000-03-21 | 2001-09-27 | Mannesmann Vdo Ag | Förderpumpe |
DE10013907A1 (de) * | 2000-03-21 | 2001-09-27 | Mannesmann Vdo Ag | Förderpumpe |
DE10019911A1 (de) * | 2000-04-20 | 2001-10-25 | Mannesmann Vdo Ag | Förderpumpe |
US6527505B2 (en) * | 2000-12-11 | 2003-03-04 | Visteon Global Technologies, Inc. | Regenerative fuel pump flow chamber |
DE10062451A1 (de) * | 2000-12-14 | 2002-06-20 | Siemens Ag | Förderpumpe |
JP2003113750A (ja) * | 2001-07-31 | 2003-04-18 | Denso Corp | タービン式燃料ポンプ |
US6932562B2 (en) * | 2002-06-18 | 2005-08-23 | Ti Group Automotive Systems, L.L.C. | Single stage, dual channel turbine fuel pump |
US7037066B2 (en) * | 2002-06-18 | 2006-05-02 | Ti Group Automotive Systems, L.L.C. | Turbine fuel pump impeller |
JP3959012B2 (ja) * | 2002-09-10 | 2007-08-15 | 愛三工業株式会社 | 摩擦再生式燃料ポンプ |
JP2004360678A (ja) * | 2003-05-15 | 2004-12-24 | Denso Corp | 燃料ポンプ |
KR100568547B1 (ko) * | 2003-07-28 | 2006-04-07 | 현담산업 주식회사 | 개선된 형상의 임펠러를 구비하는 자동차용 터빈형전동기식연료펌프 |
DE10341837B3 (de) | 2003-09-09 | 2005-03-10 | Siemens Ag | Kraftstoffpumpe für einen Kraftstoffbehälter |
DE102004052439A1 (de) | 2004-10-28 | 2006-05-04 | Siemens Ag | Kraftstoffpumpe und Kraftstoffversorgungsanlage für eine Brennkraftmaschine eines Kraftfahrzeuges mit einer Kraftstoffpumpe |
US7165932B2 (en) * | 2005-01-24 | 2007-01-23 | Visteon Global Technologies, Inc. | Fuel pump having dual single sided impeller |
US7632060B2 (en) * | 2005-01-24 | 2009-12-15 | Ford Global Technologies, Llc | Fuel pump having dual flow channel |
WO2007133412A1 (en) * | 2006-05-01 | 2007-11-22 | Continental Automotive Systems Us, Inc. | Fuel pump with inner channel priming |
JP4832156B2 (ja) * | 2006-05-09 | 2011-12-07 | 愛三工業株式会社 | 燃料ポンプ |
JP4978247B2 (ja) * | 2007-03-09 | 2012-07-18 | 株式会社デンソー | 燃料ポンプ |
JP4867733B2 (ja) * | 2007-03-16 | 2012-02-01 | 株式会社デンソー | 燃料ポンプ |
US9249806B2 (en) | 2011-02-04 | 2016-02-02 | Ti Group Automotive Systems, L.L.C. | Impeller and fluid pump |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3233551A (en) * | 1964-02-03 | 1966-02-08 | Hitachi Ltd | Westco pump |
JPS58222997A (ja) * | 1982-06-21 | 1983-12-24 | Nippon Denso Co Ltd | ポンプ装置 |
DE3509374A1 (de) * | 1985-03-15 | 1986-09-25 | Robert Bosch Gmbh, 7000 Stuttgart | Einrichtung zum foerdern von kraftstoff aus einem vorratstank zur brennkraftmaschine eines kraftfahrzeuges |
US5248223A (en) * | 1992-06-09 | 1993-09-28 | Walbro Corporation | Fuel pump with anti-reversion inlet |
GB9315630D0 (en) * | 1993-07-28 | 1993-09-08 | Dowty Defence & Air Syst | Pumps |
US5364238A (en) * | 1993-09-07 | 1994-11-15 | Ford Motor Company | Divergent inlet for an automotive fuel pump |
US5401147A (en) * | 1993-09-07 | 1995-03-28 | Ford Motor Company | Automotive fuel pump with convergent flow channel |
US5413457A (en) * | 1994-07-14 | 1995-05-09 | Walbro Corporation | Two stage lateral channel-regenerative turbine pump with vapor release |
US5551835A (en) * | 1995-12-01 | 1996-09-03 | Ford Motor Company | Automotive fuel pump housing |
US5580213A (en) * | 1995-12-13 | 1996-12-03 | General Motors Corporation | Electric fuel pump for motor vehicle |
-
1997
- 1997-06-14 DE DE19725249A patent/DE19725249C2/de not_active Expired - Fee Related
-
1998
- 1998-03-25 EP EP98105375A patent/EP0884479B1/de not_active Expired - Lifetime
- 1998-03-25 DE DE59811410T patent/DE59811410D1/de not_active Expired - Lifetime
- 1998-06-10 US US09/095,531 patent/US6152688A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0884479A1 (de) | 1998-12-16 |
DE19725249C2 (de) | 2002-05-02 |
US6152688A (en) | 2000-11-28 |
DE59811410D1 (de) | 2004-06-24 |
DE19725249A1 (de) | 1998-12-24 |
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