US20070274846A1 - Fuel Pump - Google Patents
Fuel Pump Download PDFInfo
- Publication number
- US20070274846A1 US20070274846A1 US10/556,953 US55695304A US2007274846A1 US 20070274846 A1 US20070274846 A1 US 20070274846A1 US 55695304 A US55695304 A US 55695304A US 2007274846 A1 US2007274846 A1 US 2007274846A1
- Authority
- US
- United States
- Prior art keywords
- duct
- partially annular
- inlet
- housing part
- outlet
- 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
- F04D5/00—Pumps with circumferential or transverse flow
- F04D5/002—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/048—Arrangements for driving regenerative pumps, i.e. side-channel 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
- F04D5/007—Details of the inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2250/00—Geometry
- F05B2250/50—Inlet or outlet
- F05B2250/503—Inlet or outlet of regenerative pumps
Definitions
- the invention relates to a fuel pump for delivering fuel into a fuel tank of a motor vehicle, having a driven impeller rotating in a housing, with rings of guide blades defining blade chambers arranged on both end faces of the impeller, opposing blade chambers being connected to one another, with partially annular ducts, which are arranged in the area of the guide blades in an inlet-side housing part and in an outlet-side housing part and which together with the blade chambers form a delivery chamber for delivering a liquid from an inlet duct to an outlet duct, one of the partially annular ducts being connected to the inlet duct and the other, the opposing partially annular duct, being connected to the outlet duct.
- Such fuel pumps are known as peripheral or side-channel pumps and are often used in the fuel tanks of present-day motor vehicles.
- the partially annular ducts extend over an angular range of approximately 300 to 330°.
- a disadvantage of the known fuel pumps is that vortices occur in the area of the blade chambers as the delivered liquid flows over. These vortices lead to a low efficiency of the fuel pump and lead, particularly when delivering hot fuel, to gassing of the fuel. The gassing leads to a further reduction in the efficiency of the fuel pump.
- the object of the invention is to design a fuel pump of the type described in the introductory part so that it has a maximum possible efficiency.
- this object is achieved in that the partially annular duct in the inlet-side housing part continuously narrows away from the inlet duct and/or the partially annular duct in the outlet-side housing part continuously widens toward the outlet duct, and that the continuous narrowing or widening extends over at least 80% of the length of the corresponding partially annular duct.
- This design allows the liquid being delivered to be continuously transferred from the partially annular duct in the inlet-side housing part to the partially annular duct in the outlet-side housing part. This also makes it possible to generate a uniform rise in pressure increasing toward the outlet duct in the two partially annular housing parts. This means that there is a uniform flow through the opposing blade chambers as they move from the inlet duct to the outlet duct. This serves to prevent the rate of flow as the liquid flows over from one blade chamber into the opposing blade chambers increasing the closer these blade chambers get to the outlet duct, as is the case in the known fuel pump.
- the fuel pump according to the invention therefore has an especially high efficiency.
- the narrowing or widening of the partially annular ducts is particularly easy to configure if at least one of the partially annular ducts is of wedge-shaped design in a section along the delivery chamber.
- the delivery chamber has substantially the same cross-section at any point, the cross-section of the partially annular duct in the inlet-side housing part being larger in proximity to the inlet duct than the cross-section of the partially annular duct in the outlet-side housing part.
- FIG. 1 shows a fuel delivery unit for a motor vehicle having a fuel pump according to the invention
- FIG. 2 shows a tangential, sectional representation through the fuel pump in the area of a delivery chamber.
- FIG. 1 shows a fuel delivery unit intended to be arranged in a fuel tank of a motor vehicle and having a housing 1 and a fuel pump 3 in the form of a side-channel pump driven by an electric motor 2 .
- the fuel pump 3 has an impeller 6 arranged between an inlet-side housing part 4 and an outlet-side housing part 5 .
- An inlet duct 7 is arranged in the inlet-side housing part 4 and an outlet duct 8 in the outlet-side housing part 5 .
- the impeller 6 is fixed on a shaft 9 of the electric motor 2 .
- the fuel pump 3 has opposing rings of guide blades 11 defining blade chambers 10 on both end faces of the impeller 6 .
- the housing parts 4 , 5 each have a partially annular duct 12 , 13 in the area of the blade chambers 10 .
- the partially annular ducts 12 , 13 together with the blade chambers 10 form a delivery chamber 14 leading from the inlet duct 7 through the impeller 6 to the outlet duct 8 .
- the inlet duct 7 and the outlet duct 8 are shown turned into the plane of projection.
- the delivery chamber 14 extends over an angular range of approximately 300 to 330°.
- the impeller 6 rotates the guide blades 11 produce a circulatory flow, running transversely to the direction of movement of the guide blades 11 , in the delivery chamber 14 . In so doing the delivered fuel flows over from the inlet-side housing part 4 to the outlet-side housing part 5 through the interconnected blade chambers 10 .
- FIG. 2 in a tangential section through the fuel pump in FIG. 1 in the area of the delivery chamber 14 , shows that the partially annular duct 12 arranged in the inlet-side housing part 4 narrows away from the inlet duct 7 , viewed in the direction of flow.
- the partially annular duct 13 arranged in the outlet-side housing part 5 furthermore widens toward the outlet duct 8 viewed in the direction of flow.
- the widening and narrowing extend virtually over the entire length of the partially annular ducts 12 , 13 and each virtually have a wedge shape.
- the partially annular ducts 12 , 13 widen and narrow to the same degree, so that over the whole area of the partially annular ducts 12 , 13 the delivery chamber 14 has substantially the same cross-section.
Abstract
Disclosed is a fuel pump which is embodied as a side channel pump and is used for conveying fuel into a fuel reservoir of a motor vehicle, and in which a partially annular duct (13) that extends to a discharge duct (8) is configured in a continually expanding manner. A partially annular duct (12) that is connected to an intake duct (7) tapers in the direction of flow. Blade chambers (10) that are disposed within an impeller (6) form a conveying chamber (14) along with the partially annular ducts (12, 13). Said conveying chamber (14) extends from the intake duct (7) to the discharge duct (8) and is provided with a constant cross section such that the impeller (6) is continuously penetrated by a flow.
Description
- The invention relates to a fuel pump for delivering fuel into a fuel tank of a motor vehicle, having a driven impeller rotating in a housing, with rings of guide blades defining blade chambers arranged on both end faces of the impeller, opposing blade chambers being connected to one another, with partially annular ducts, which are arranged in the area of the guide blades in an inlet-side housing part and in an outlet-side housing part and which together with the blade chambers form a delivery chamber for delivering a liquid from an inlet duct to an outlet duct, one of the partially annular ducts being connected to the inlet duct and the other, the opposing partially annular duct, being connected to the outlet duct.
- Such fuel pumps are known as peripheral or side-channel pumps and are often used in the fuel tanks of present-day motor vehicles. The partially annular ducts extend over an angular range of approximately 300 to 330°.
- A disadvantage of the known fuel pumps is that vortices occur in the area of the blade chambers as the delivered liquid flows over. These vortices lead to a low efficiency of the fuel pump and lead, particularly when delivering hot fuel, to gassing of the fuel. The gassing leads to a further reduction in the efficiency of the fuel pump.
- The object of the invention is to design a fuel pump of the type described in the introductory part so that it has a maximum possible efficiency.
- According to the invention this object is achieved in that the partially annular duct in the inlet-side housing part continuously narrows away from the inlet duct and/or the partially annular duct in the outlet-side housing part continuously widens toward the outlet duct, and that the continuous narrowing or widening extends over at least 80% of the length of the corresponding partially annular duct.
- This design allows the liquid being delivered to be continuously transferred from the partially annular duct in the inlet-side housing part to the partially annular duct in the outlet-side housing part. This also makes it possible to generate a uniform rise in pressure increasing toward the outlet duct in the two partially annular housing parts. This means that there is a uniform flow through the opposing blade chambers as they move from the inlet duct to the outlet duct. This serves to prevent the rate of flow as the liquid flows over from one blade chamber into the opposing blade chambers increasing the closer these blade chambers get to the outlet duct, as is the case in the known fuel pump. The fuel pump according to the invention therefore has an especially high efficiency.
- Abrupt flow variations in the delivery chamber lead to gassing of the fuel, particularly when the fuel being delivered is at high temperature. According to another advantageous further embodiment of the invention such abrupt flow changes are readily prevented if the narrowing or widening is continuous over the proposed area of the length of the partially annular duct.
- According to another advantageous further embodiment of the invention the narrowing or widening of the partially annular ducts is particularly easy to configure if at least one of the partially annular ducts is of wedge-shaped design in a section along the delivery chamber.
- In order to further reduce pressure fluctuations in the delivery chamber it is of help, according to another advantageous further embodiment of the invention, if the delivery chamber has substantially the same cross-section at any point, the cross-section of the partially annular duct in the inlet-side housing part being larger in proximity to the inlet duct than the cross-section of the partially annular duct in the outlet-side housing part.
- The invention permits numerous embodiments. In order to further illustrate its basic principle, one such embodiment is represented in the drawing and is described below. In the drawing:
-
FIG. 1 shows a fuel delivery unit for a motor vehicle having a fuel pump according to the invention, -
FIG. 2 shows a tangential, sectional representation through the fuel pump in the area of a delivery chamber. -
FIG. 1 shows a fuel delivery unit intended to be arranged in a fuel tank of a motor vehicle and having ahousing 1 and afuel pump 3 in the form of a side-channel pump driven by anelectric motor 2. Thefuel pump 3 has animpeller 6 arranged between an inlet-side housing part 4 and an outlet-side housing part 5. Aninlet duct 7 is arranged in the inlet-side housing part 4 and anoutlet duct 8 in the outlet-side housing part 5. Theimpeller 6 is fixed on ashaft 9 of theelectric motor 2. Thefuel pump 3 has opposing rings ofguide blades 11 definingblade chambers 10 on both end faces of theimpeller 6. Thehousing parts annular duct blade chambers 10. The partiallyannular ducts blade chambers 10 form adelivery chamber 14 leading from theinlet duct 7 through theimpeller 6 to theoutlet duct 8. For the purpose of simplification, theinlet duct 7 and theoutlet duct 8 are shown turned into the plane of projection. As a rule, thedelivery chamber 14 extends over an angular range of approximately 300 to 330°. As theimpeller 6 rotates theguide blades 11 produce a circulatory flow, running transversely to the direction of movement of theguide blades 11, in thedelivery chamber 14. In so doing the delivered fuel flows over from the inlet-side housing part 4 to the outlet-side housing part 5 through theinterconnected blade chambers 10. -
FIG. 2 , in a tangential section through the fuel pump inFIG. 1 in the area of thedelivery chamber 14, shows that the partiallyannular duct 12 arranged in the inlet-side housing part 4 narrows away from theinlet duct 7, viewed in the direction of flow. The partiallyannular duct 13 arranged in the outlet-side housing part 5 furthermore widens toward theoutlet duct 8 viewed in the direction of flow. In order to show this more clearly the fuel flows and the direction of movement of theimpeller 6 are identified by arrows in the drawing. The widening and narrowing extend virtually over the entire length of the partiallyannular ducts annular ducts annular ducts delivery chamber 14 has substantially the same cross-section.
Claims (4)
1. A fuel pump for delivering fuel into a fuel tank of a motor vehicle, having a driven impeller rotating in a housing, with rings of guide blades defining blade chambers arranged on both end faces of the impeller, opposing blade chambers being connected to one another, with partially annular ducts, which are arranged in the area of the guide blades in an inlet-side housing part and in an outlet-side housing part and which together with the blade chambers form a delivery chamber for delivering a liquid from an inlet duct to an outlet duct, one of the partially annular ducts being connected to the inlet duct and the other, the opposing partially annular duct, being connected to the outlet duct, characterized in that the partially annular duct (12) in the inlet-side housing part (4) narrows away from the inlet duct (7) and/or the partially annular duct (13) in the outlet-side housing part (5) widens toward the outlet duct (8), and that the narrowing or widening extends over at least 80% of the length of the corresponding partially annular duct (12, 13).
2. The fuel pump as claimed in claim 1 , characterized in that the narrowing or widening is continuous over the proposed area of the length of the partially annular duct (12, 13).
3. The fuel pump as claimed in claim 1 or 2 , characterized in that at least one of the partially annular ducts (12, 13) is of wedge-shaped design in a section along the delivery chamber.
4. The fuel pump as defined in claim 1 , characterized in that the delivery chamber (14) has substantially the same cross-section at any point, the cross-section of the partially annular duct (12) in the inlet-side housing part (4) being larger in proximity to the inlet duct (7) than the cross-section of the partially annular duct (13) in the outlet-side housing part (5).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10348008A DE10348008A1 (en) | 2003-10-15 | 2003-10-15 | Fuel pump |
DE10348008.0 | 2003-10-15 | ||
PCT/EP2004/052162 WO2005038259A1 (en) | 2003-10-15 | 2004-09-14 | Fuel pump |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070274846A1 true US20070274846A1 (en) | 2007-11-29 |
Family
ID=34441983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/556,953 Abandoned US20070274846A1 (en) | 2003-10-15 | 2004-09-14 | Fuel Pump |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070274846A1 (en) |
EP (1) | EP1606516B1 (en) |
JP (1) | JP4416787B2 (en) |
KR (1) | KR100774043B1 (en) |
CN (1) | CN1791753B (en) |
DE (1) | DE10348008A1 (en) |
WO (1) | WO2005038259A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9249806B2 (en) | 2011-02-04 | 2016-02-02 | Ti Group Automotive Systems, L.L.C. | Impeller and fluid pump |
US9638192B2 (en) | 2009-12-16 | 2017-05-02 | Continental Automotive Gmbh | Fuel pump |
CN113423956A (en) * | 2019-01-16 | 2021-09-21 | 株式会社美姿把 | Non-positive displacement pump and liquid supply device |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5298854B2 (en) * | 2006-10-28 | 2013-09-25 | iMed Japan株式会社 | Spiral pump for blood |
CN101701587B (en) * | 2009-11-20 | 2011-09-07 | 浙江格凌实业有限公司 | Pump cover of large-flow gas ring pump |
CN104040180A (en) * | 2011-10-13 | 2014-09-10 | 三菱电机株式会社 | Fuel pump |
DE102013200713A1 (en) * | 2013-01-18 | 2014-07-24 | Robert Bosch Gmbh | Side channel pump with asymmetrical cross sections of the side channels |
DE102013220717B4 (en) * | 2013-10-14 | 2016-04-07 | Continental Automotive Gmbh | pump |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5486087A (en) * | 1993-12-16 | 1996-01-23 | Robert Bosch Gmbh | Unit for delivering fuel from a supply tank to an internal combustion engine |
US6068456A (en) * | 1998-02-17 | 2000-05-30 | Walbro Corporation | Tapered channel turbine fuel pump |
US20020021961A1 (en) * | 2000-03-28 | 2002-02-21 | Pickelman Dale M. | Pump section for fuel pump |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT109069B (en) * | 1927-01-24 | 1928-03-10 | Rudolph Siegel | Self-priming centrifugal pump. |
DE1703566C3 (en) * | 1968-06-11 | 1974-06-12 | Georg 6901 Dilsberg Fabig | Self-priming side channel pump |
US4804313A (en) * | 1987-03-24 | 1989-02-14 | Colt Industries Inc | Side channel self priming fuel pump having reservoir |
DE4427874C2 (en) * | 1994-08-06 | 2003-06-18 | Bosch Gmbh Robert | Unit for delivering fuel from a storage tank to the internal combustion engine of a motor vehicle |
-
2003
- 2003-10-15 DE DE10348008A patent/DE10348008A1/en not_active Ceased
-
2004
- 2004-09-14 US US10/556,953 patent/US20070274846A1/en not_active Abandoned
- 2004-09-14 EP EP04766785A patent/EP1606516B1/en not_active Expired - Fee Related
- 2004-09-14 WO PCT/EP2004/052162 patent/WO2005038259A1/en active Application Filing
- 2004-09-14 JP JP2006508316A patent/JP4416787B2/en not_active Expired - Fee Related
- 2004-09-14 CN CN2004800135662A patent/CN1791753B/en not_active Expired - Fee Related
- 2004-09-14 KR KR1020057021450A patent/KR100774043B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5486087A (en) * | 1993-12-16 | 1996-01-23 | Robert Bosch Gmbh | Unit for delivering fuel from a supply tank to an internal combustion engine |
US6068456A (en) * | 1998-02-17 | 2000-05-30 | Walbro Corporation | Tapered channel turbine fuel pump |
US20020021961A1 (en) * | 2000-03-28 | 2002-02-21 | Pickelman Dale M. | Pump section for fuel pump |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9638192B2 (en) | 2009-12-16 | 2017-05-02 | Continental Automotive Gmbh | Fuel pump |
US9249806B2 (en) | 2011-02-04 | 2016-02-02 | Ti Group Automotive Systems, L.L.C. | Impeller and fluid pump |
CN113423956A (en) * | 2019-01-16 | 2021-09-21 | 株式会社美姿把 | Non-positive displacement pump and liquid supply device |
Also Published As
Publication number | Publication date |
---|---|
CN1791753A (en) | 2006-06-21 |
JP4416787B2 (en) | 2010-02-17 |
KR100774043B1 (en) | 2007-11-06 |
WO2005038259A1 (en) | 2005-04-28 |
KR20060039857A (en) | 2006-05-09 |
CN1791753B (en) | 2011-07-06 |
EP1606516B1 (en) | 2013-01-23 |
DE10348008A1 (en) | 2005-05-19 |
JP2006526110A (en) | 2006-11-16 |
EP1606516A1 (en) | 2005-12-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CONTINENTAL AUTOMOTIVE GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SIEMENS AKTIENGESELLSCHAFT;REEL/FRAME:027263/0068 Effective date: 20110704 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |