US20050053497A1 - Side-channel pump - Google Patents
Side-channel pump Download PDFInfo
- Publication number
- US20050053497A1 US20050053497A1 US10/498,404 US49840404A US2005053497A1 US 20050053497 A1 US20050053497 A1 US 20050053497A1 US 49840404 A US49840404 A US 49840404A US 2005053497 A1 US2005053497 A1 US 2005053497A1
- Authority
- US
- United States
- Prior art keywords
- channel
- blade chambers
- pump
- rotor
- annular channel
- 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.)
- Abandoned
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
- 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
- F04D5/002—Regenerative pumps
Definitions
- the invention relates to a side-channel pump which is provided, in particular, for the conveyance of fuel in a motor vehicle, with a rotor rotating in a pump casing, with a ring of blade chambers which is arranged in one end face of the rotor, and with a part-annular channel arranged opposite the ring in the casing and extending from an inlet to an outlet.
- Such side-channel pumps are often used in fuel tanks of present-day motor vehicles and are known from practice.
- the part-annular channel and the blade chambers form a conveying chamber through which fuel is conveyed.
- this gives rise, in a conveying chamber, to circulation flows radially outward from the radially inner region of the blade chamber, as seen from the axis of rotation of the rotor.
- the known side-channel pump has the disadvantage that, as seen from the axis of rotation of the rotor, the flow can penetrate between the rotor and the casing in the radially outer region.
- the residual dirt contained in the medium leads to a wear of the axial sealing surfaces lying radially outside the conveying chamber and therefore to a reduction in efficiency.
- This effect is additionally reinforced, in particular, by heavily contaminated medium to be conveyed.
- the problem on which the invention is based is to design a side-channel pump of the type initially mentioned, in such a way that it avoids a wear of the axial sealing surfaces of the conveying chamber.
- a wear of the axial sealing surfaces of the blade chambers in the inlet region of the circulation flow can be avoided in a simple way if the internal boundary of the part-annular channel has a larger diameter than the internal boundary of the ring of blade chambers.
- the side-channel pump according to the invention acquires a particularly simple structural configuration when the part-annular channel and the blade chambers have in each case the same width, and when the radius R1 from the axis of rotation of the rotor to the part-annular channel exceeds the radius R2 of the ring of blade chambers by 0.1 ⁇ 1.5 mm.
- the axial sealing surfaces of the blade chambers and of the part-annular channel are protected against wear.
- the invention permits numerous embodiments. To make its basic principle even clearer, one of these is illustrated in the drawing and is described below.
- the drawing shows a fuel pump in a single figure.
- the fuel pump has a side-channel pump 2 according to the invention, driven by an electric motor 1 .
- the side-channel pump 2 has a casing 3 with two casing parts 4 , 5 , between which a rotor 6 driven by the electric motor 1 is arranged rotatably.
- An inlet 7 and an outlet 8 are arranged in the casing 3 .
- the rotor 6 has on its end faces two rings of blade chambers 10 delimited by guide blades 9 .
- Blade chambers 10 located opposite one another are connected to one another.
- Part-annular channels 11 are arranged, opposite the rings of blade chambers 10 , in the casing parts 4 , 5 .
- the part-annular channels 11 extend from the inlet 7 to the outlet 8 and, together with the blade chambers 10 , form a conveying chamber for the conveyance of fuel.
- the fuel to be conveyed therefore flows through the side-channel pump 2 axially.
- the rotor 6 rotates, this gives rise, in the conveying chamber, to circulation flows which are accelerated away from the axis of rotation of the rotor 6 in the blade chambers 10 .
- the flows of the fuel are marked by arrows in the drawing.
Abstract
The invention relates to a side-channel pump for transporting fuel in a motor vehicle. Said pump comprises a partial annular channel (11) located in housing sections (4, 5), said channel having a greater radius than a crown of vane chambers (10) that are located in the impeller (6). The vane chambers (10) and the partial annular channel (11) respectively have the same width. This prevents wear and tear to the sealing surfaces.
Description
- The invention relates to a side-channel pump which is provided, in particular, for the conveyance of fuel in a motor vehicle, with a rotor rotating in a pump casing, with a ring of blade chambers which is arranged in one end face of the rotor, and with a part-annular channel arranged opposite the ring in the casing and extending from an inlet to an outlet.
- Such side-channel pumps are often used in fuel tanks of present-day motor vehicles and are known from practice. The part-annular channel and the blade chambers form a conveying chamber through which fuel is conveyed. When the rotor rotates, this gives rise, in a conveying chamber, to circulation flows radially outward from the radially inner region of the blade chamber, as seen from the axis of rotation of the rotor.
- The known side-channel pump has the disadvantage that, as seen from the axis of rotation of the rotor, the flow can penetrate between the rotor and the casing in the radially outer region. The residual dirt contained in the medium leads to a wear of the axial sealing surfaces lying radially outside the conveying chamber and therefore to a reduction in efficiency. This effect is additionally reinforced, in particular, by heavily contaminated medium to be conveyed.
- The problem on which the invention is based is to design a side-channel pump of the type initially mentioned, in such a way that it avoids a wear of the axial sealing surfaces of the conveying chamber.
- This problem is solved, according to the invention, in that the external boundary of the part-annular channel has a larger diameter than the external boundary of the ring of blade chambers.
- By virtue of this design, the main flow emerging from the blade chambers of the rotor cannot come directly up against the edge. Owing to this design, dirt particles present in the medium pass only to a reduced extent into the region of the axial gap between the rotor and the pump chamber. Consequently, in the pump according to the invention, the wear due to contaminated medium is markedly reduced. This ensures a permanently high efficiency of the side-channel pump according to the invention.
- According to another advantageous development of the invention, a wear of the axial sealing surfaces of the blade chambers in the inlet region of the circulation flow can be avoided in a simple way if the internal boundary of the part-annular channel has a larger diameter than the internal boundary of the ring of blade chambers.
- The side-channel pump according to the invention acquires a particularly simple structural configuration when the part-annular channel and the blade chambers have in each case the same width, and when the radius R1 from the axis of rotation of the rotor to the part-annular channel exceeds the radius R2 of the ring of blade chambers by 0.1−1.5 mm. As a result of this configuration, in each case the axial sealing surfaces of the blade chambers and of the part-annular channel are protected against wear.
- The invention permits numerous embodiments. To make its basic principle even clearer, one of these is illustrated in the drawing and is described below. The drawing shows a fuel pump in a single figure.
- The fuel pump has a side-
channel pump 2 according to the invention, driven by anelectric motor 1. The side-channel pump 2 has acasing 3 with twocasing parts rotor 6 driven by theelectric motor 1 is arranged rotatably. Aninlet 7 and anoutlet 8 are arranged in thecasing 3. Therotor 6 has on its end faces two rings ofblade chambers 10 delimited by guide blades 9.Blade chambers 10 located opposite one another are connected to one another. Part-annular channels 11 are arranged, opposite the rings ofblade chambers 10, in thecasing parts annular channels 11 extend from theinlet 7 to theoutlet 8 and, together with theblade chambers 10, form a conveying chamber for the conveyance of fuel. The fuel to be conveyed therefore flows through the side-channel pump 2 axially. When therotor 6 rotates, this gives rise, in the conveying chamber, to circulation flows which are accelerated away from the axis of rotation of therotor 6 in theblade chambers 10. For illustration, the flows of the fuel are marked by arrows in the drawing. - The radius R1 of the part-annular channels to the axis of rotation of the
rotor 6 is greater than the radius R2 of the ring ofblade chambers 10 by the amount X=0.1−1.5 mm. This avoids the situation where the circulation flow, when it emerges from theblade chambers 10, strikes the sealing surfaces of the part-annular channel 11. When the circulation flow enters theblade chambers 10, the circulation flow is likewise kept away from the sealing surfaces of theblade chambers 10, said sealing surfaces facing thecasing parts
Claims (3)
1. A side-channel pump which is provided, in particular, for the conveyance of fuel in a motor vehicle, with a rotor rotating in a pump casing, with a ring of blade chambers which is arranged in one end face of the rotor, and with a part-annular channel arranged opposite the ring in the casing and extending from an inlet to an outlet, characterized in that the external boundary of the part-annular channel (11) has a larger diameter than the external boundary of the ring of blade chambers (10).
2. The side-channel pump as claimed in claim 1 , characterized in that the internal boundary of the part-annular channel (11) has a larger diameter than the internal boundary of the ring of blade chambers (10).
3. The side-channel pump as claimed in claim 1 or 2, characterized in that the part-annular channel (11) and the blade chambers (10) have in each case the same width, and in that the radius R1 from the axis of rotation of the rotor (6) to the part-annular channel (11) exceeds the radius (R2) of the ring of blade chambers (10) by 0.1−1.5 mm.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10161662A DE10161662B4 (en) | 2001-12-14 | 2001-12-14 | Side channel pump |
DE10161662.7 | 2001-12-14 | ||
PCT/DE2002/003894 WO2003052275A1 (en) | 2001-12-14 | 2002-10-14 | Side-channel pump |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050053497A1 true US20050053497A1 (en) | 2005-03-10 |
Family
ID=7709331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/498,404 Abandoned US20050053497A1 (en) | 2001-12-14 | 2002-10-14 | Side-channel pump |
Country Status (4)
Country | Link |
---|---|
US (1) | US20050053497A1 (en) |
EP (1) | EP1454065A1 (en) |
DE (1) | DE10161662B4 (en) |
WO (1) | WO2003052275A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1973669A (en) * | 1931-01-12 | 1934-09-11 | Spoor Willem Lodewijk Joost | Rotary pump |
US4447187A (en) * | 1982-02-02 | 1984-05-08 | Webasto-Werk W. Baier Gmbh & Co. | Lateral-duct fan |
US5011367A (en) * | 1989-01-31 | 1991-04-30 | Aisan Kogyo Kabushiki Kaisha | Fuel pump |
US5468119A (en) * | 1993-03-09 | 1995-11-21 | Robert Bosch Gmbh | Peripheral pump, particularly for feeding fuel to an internal combustion engine from a fuel tank of a motor vehicle |
US5921746A (en) * | 1998-10-14 | 1999-07-13 | Ford Motor Company | Fuel pump chamber with contamination control |
US6231300B1 (en) * | 1996-04-18 | 2001-05-15 | Mannesmann Vdo Ag | Peripheral pump |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4205542C2 (en) * | 1992-02-24 | 1999-01-21 | Sero Pumpenfabrik Gmbh | Self-priming side channel pump |
DE19634734A1 (en) * | 1996-08-28 | 1998-03-05 | Bosch Gmbh Robert | Hydrodynamic pump for delivering fuel from fuel tank of motor vehicle |
DE19949615C2 (en) * | 1998-10-14 | 2002-08-08 | Ford Motor Co | Side channel type paddlewheel pump for pumping fuel |
DE10019913A1 (en) * | 2000-04-20 | 2001-10-25 | Mannesmann Vdo Ag | Pump esp. fuel pump or windscreen washer fluid pump for motor vehicles has driven shaft and rotor, one or both with elements for correct positioning |
-
2001
- 2001-12-14 DE DE10161662A patent/DE10161662B4/en not_active Expired - Fee Related
-
2002
- 2002-10-14 US US10/498,404 patent/US20050053497A1/en not_active Abandoned
- 2002-10-14 WO PCT/DE2002/003894 patent/WO2003052275A1/en not_active Application Discontinuation
- 2002-10-14 EP EP02782727A patent/EP1454065A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1973669A (en) * | 1931-01-12 | 1934-09-11 | Spoor Willem Lodewijk Joost | Rotary pump |
US4447187A (en) * | 1982-02-02 | 1984-05-08 | Webasto-Werk W. Baier Gmbh & Co. | Lateral-duct fan |
US5011367A (en) * | 1989-01-31 | 1991-04-30 | Aisan Kogyo Kabushiki Kaisha | Fuel pump |
US5468119A (en) * | 1993-03-09 | 1995-11-21 | Robert Bosch Gmbh | Peripheral pump, particularly for feeding fuel to an internal combustion engine from a fuel tank of a motor vehicle |
US6231300B1 (en) * | 1996-04-18 | 2001-05-15 | Mannesmann Vdo Ag | Peripheral pump |
US5921746A (en) * | 1998-10-14 | 1999-07-13 | Ford Motor Company | Fuel pump chamber with contamination control |
Also Published As
Publication number | Publication date |
---|---|
DE10161662B4 (en) | 2005-11-10 |
WO2003052275A1 (en) | 2003-06-26 |
DE10161662A1 (en) | 2003-06-26 |
EP1454065A1 (en) | 2004-09-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SIEMENS AKTIENGESELLSCHAFT, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BURHENNE, SABINE;DEICHMANN, JOHANNES;JAEGER, BERND;AND OTHERS;REEL/FRAME:015990/0704;SIGNING DATES FROM 20040506 TO 20040517 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |