EP1103717B1 - In einem Schwalltopf eines Kraftstoffbehälters eines Kraftfahrzeuges angeordnete Fördereinheit - Google Patents
In einem Schwalltopf eines Kraftstoffbehälters eines Kraftfahrzeuges angeordnete Fördereinheit Download PDFInfo
- Publication number
- EP1103717B1 EP1103717B1 EP00125410A EP00125410A EP1103717B1 EP 1103717 B1 EP1103717 B1 EP 1103717B1 EP 00125410 A EP00125410 A EP 00125410A EP 00125410 A EP00125410 A EP 00125410A EP 1103717 B1 EP1103717 B1 EP 1103717B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- fuel
- surge chamber
- chamber
- ejector
- 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
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Classifications
-
- 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
- F02M37/02—Feeding by means of suction apparatus, e.g. by air flow through carburettors
- F02M37/025—Feeding by means of a liquid fuel-driven jet pump
Definitions
- the invention relates to a in a surge pot of a fuel tank a motor vehicle arranged conveyor unit, with a to promote fuel to an internal combustion engine the motor vehicle provided fuel pump, with a suction jet pump connected to the fuel pump for pumping fuel from the fuel tank in the swirl pot and with a pump holder for mounting the fuel pump in the swirl pot, wherein the suction jet pump with the pump holder and / or the swirl pot as a structural Unit are designed / is.
- Such a conveyor unit is for example from WO 88/01346 known.
- This conveyor unit is a mixing tube the suction jet pump made in one piece with the pump holder.
- the pump holder has a receptacle for a Nozzle of the suction jet pump.
- EP 0 694 691 A1 discloses a delivery unit become, in which the nozzle of the suction jet pump in the Swirl pot is used.
- the mixing tube is integral with made the swirl pot.
- the suction jet pump can be with the pump holder or the swirl pot to a structural Premount the unit separately from the fuel pump. Maintenance work on the fuel pump are thereby not obstructed by the suction jet pump and make themselves This makes it very easy.
- the invention is based on the problem of a conveyor unit of the type mentioned above to be designed so that they possible easy to manufacture.
- the suction jet pump designed and the adjacent components particularly inexpensive.
- the suction jet pump is divided longitudinally and can therefore be combined with the swirl pot and the pump holder easily in axially demoulding injection molds finished.
- the suction jet pump can be simply into the dividing plane between baffle pot and pump holder.
- Feed unit as the pump holder like the Suction jet pump and the swirl pot usually made of art. fabric are made.
- Feed unit contributes when the at the bottom of the swirl pot fastened pump holder a latching connection with the Fuel pump has. In the simplest case, this can be up a bias of the fuel pump by means of a omitted the lid of the baffle pot supporting arm become.
- the fuel pump is according to another advantageous Development of the invention reliably in their intended Held position when the pump holder has a circumferential, a lower area of the fuel pump embracing edge and the Latching connection arranged one on the free end of the edge Having radially inwardly facing projection.
- the delivery unit according to the invention contributes, when a compound the pump holder with the bottom of the swirl pot is designed positively.
- the suction jet pump could be integral with the pump holder be designed. However, since the suction jet pump has a nozzle and has a spaced from the nozzle mixing tube, this leads to a complicated design of the pump holder.
- the pump holder can be according to another advantageous development manufacture the invention particularly simple when the Bottom of the swirl pot a portion of a mixing tube having the suction jet pump. For further constructive simplification of the invention Feed unit contributes when the ejector pump positively connected to the pump holder.
- the suction jet pump could, for example, as in the known Feed unit one in the area of one to the Internal combustion engine leading outlet channel arranged Have branch for the suction jet pump.
- a higher Pressure required as the ejector pump requires this a costly, arranged in the branch pressure reducing valve.
- Such a costly pressure reducing valve can be according to another advantageous development simply avoid the invention when the Fuel pump as peripheral pump or side channel pump is formed and if a nozzle of the suction jet pump with a central region of a delivery chamber of the Fuel pump arranged branch is connected. hereby is the branch at a point in the fuel pump arranged, on which independently the intended Pressure setting.
- the Suction jet pump via its own pumping stage with fuel provided.
- This additional pumping stage can be in a peripheral pump or side channel pump particularly cost be arranged in an impeller with the main pumping stage.
- Figure 1 shows one at a bottom of a fuel tank 1 of a motor vehicle arranged swirl pot. 2 with a conveyor unit arranged therein 3.
- the conveyor unit 3 has one of an electric motor 4 driven Fuel pump 5 and a pump holder 6 for attachment the fuel pump in the swirl pot 2.
- the pump holder 6 with the bottom portion of the swirl pot 2 bolted and has a locking connection 7 with the fuel pump 5.
- the locking connection 7 is as of the pump holder 6 protruding and the fuel pump 5 circumferential edge 8 with a radially inwardly facing Projection 9 designed.
- the projection 9 penetrates into one Well 10 of the fuel pump 5 a.
- the pump holder 6 is bolted to the bottom portion of the swirl pot 2.
- the fuel pump 5 is designed as a side channel pump and has a rotating in a pump housing 11 Impeller 12. Furthermore, the fuel pump 5 a from an inlet channel 13 to an outlet channel 14th extending delivery chamber 15. From a middle area the delivery chamber 15 leads a branch 16 to a Suction jet pump 17.
- the suction jet pump 17 has a the nozzle 16 connected to the branch 16 and one of the nozzle 18 spaced mixing tube 19.
- the nozzle 18 and the mixing tube 19 are each to one half of the swirl pot. 2 and formed on the other half of the pump holder 6. As a result, both components can be in an axially demoldable Finished injection mold.
- the area between the mixing tube 19 and the nozzle 18 is via a recess 20 in the bottom area of the swirl pot 2 with the fuel tank 1 connected.
- a Bottom valve 21 is arranged, through which exclusively Fuel can penetrate into the swirl pot 2.
- Farther is located in front of the recess 20, a fuel filter 22.
- the delivery unit can be optionally the fuel pump 5 from the pump holder 6, or the pump holder 6 together with unscrew the fuel pump 5 from the swirl pot 2.
- the fuel pump 5 sucks fuel through the fine filter 23 from the swirl pot 2 and promotes him over the Outlet 15 to an internal combustion engine, not shown of the motor vehicle. This will get a subset of the fuel via the branch 16 to the nozzle 18 of the Suction jet pump 17.
- the suction jet pump 17 sucks over the Bottom valve 21 fuel from the fuel tank 1 at and promotes this in the swirl pot 2. For clarification are in the drawing the currents of the fuel marked with arrows. This will ensure that any time fuel in the swirl pot. 2 is available.
- FIG 2 shows a further embodiment of the in the Swirl pot 2 arranged conveyor unit 29.
- This conveyor unit 29 differs from that of FIG all the fact that a suction jet pump 24 as a separate Component used in a receptacle 25 of a pump holder 26 is.
- the pump holder 26 has to hold the Suction jet pump 24 Sealing rings 27.
- the pump holder 26 via a latching connection 28 at the bottom area the swirl pot 2 attached.
- FIGS 3a and 3b are different delivery chamber arrangements shown for feeding the suction jet pump.
- two delivery chambers 15, 15 ' are arranged one behind the other and arranged concentrically with each other in FIG. 3b are.
- the respective longer delivery chamber 15 has a Inlet 13 to the swirl pot and an outlet 14 to the internal combustion engine of the motor vehicle.
- the respectively shorter delivery chamber 15 ' has with the inlet 31 a own connection to the swirl pot.
- Via an outlet 32 is the delivery chamber 15 'with the nozzle of the suction jet pump connected.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
- Figur 1
- einen unteren Bereich einer erfindungsgemäßen Fördereinheit mit angrenzenden Bereichen eines Kraftstoffbehälters im Längsschnitt,
- Figur 2
- eine weitere Ausführungsform der erfindungsgemäßen Fördereinheit im Längsschnitt,
- Figur 3a, b
- verschiedene Ausgestaltungen der Förderkammer für die Speisung der Saugstrahlpumpe.
Claims (8)
- In einem Schwalltopf eines Kraftstoffbehälters eines Kraftfahrzeuges angeordnete Fördereinheit, mit einer zur Förderung von Kraftstoff zu einer Brennkraftmaschine des Kraftfahrzeuges vorgesehenen Kraftstoffpumpe, mit einer mit der Kraftstoffpumpe verbundenen Saugstrahlpumpe zur Förderung von Kraftstoff aus dem Kraftstoffbehälter in den Schwalltopf und mit einem Pumpenhalter zur Halterung der Kraftstoffpumpe in dem Schwalltopf, wobei die Saugstrahlpumpe (17, 24) mit dem Pumpenhalter (6, 26) und/oder dem Schwalltopf (2) als bauliche Einheit gestaltet ist, dadurch gekennzeichnet, dass eine Düse (18) und das Mischrohr (19) der Saugstrahlpumpe (17) geteilt und jeweils zu einer Hälfte in dem Schwalltopf (2) und zur anderen Hälfte in dem Pumpenhalter (6) angeordnet sind oder dass die Saugstrahlpumpe (24) als separates Bauteil in einer Trennebene zwischen Schwalltopf (2) und Pumpenhalter (26) eingesetzt ist.
- Fördereinheit nach Anspruch 1, dadurch gekennzeichnet, dass der am Boden des Schwalltopfes (2) befestigte Pumpenhalter (6, 26) eine Rastverbindung (7) mit der Kraftstoffpumpe (5) hat.
- Fördereinheit nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Pumpenhalter (6, 26) einen umlaufenden, einen unteren Bereich der Kraftstoffpumpe (5) umgreifenden Rand (8) und die Rastverbindung (7) einen auf dem freien Ende des Randes (8) angeordneten, radial nach innen weisenden Vorsprung (9) aufweist.
- Fördereinheit nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Verbindung des Pumpenhalters (6, 26) mit dem Boden des Schwalltopfes (2) formschlüssig gestaltet ist.
- Fördereinheit nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Boden des Schwalltopfes (2) einen Teilbereich eines Mischrohrs (19) der Saugstrahlpumpe (17) aufweist.
- Fördereinheit nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Saugstrahlpumpe (24) formschlüssig mit dem Pumpenhalter (26) verbunden ist.
- Fördereinheit nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kraftstoffpumpe (5) als Peripheralpumpe oder Seitenkanalpumpe ausgebildet ist und dass eine Düse (18) der Saugstrahlpumpe (17, 24) mit einem im mittleren Bereich einer Förderkammer (15) der Kraftstoffpumpe (5) angeordneten Abzweig (16) verbunden ist.
- Fördereinheit nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kraftstoffpumpe (5) als Peripheralpumpe oder Seitenkanalpumpe ausgebildet ist, und dass eine Düse (18) der Saugstrahlpumpe (17, 24) mit dem Auslass (32) der Förderkammer (15') verbunden ist, wobei die Förderkammer (15') von der Förderkammer (15) fluidisch getrennt ist.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19956141 | 1999-11-23 | ||
DE19956141 | 1999-11-23 | ||
DE10055344 | 2000-11-08 | ||
DE10055344A DE10055344A1 (de) | 1999-11-23 | 2000-11-08 | In einem Schwalltopf eines Kraftstoffbehälters eines Kraftfahrzeuges angeordnete Fördereinheit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1103717A1 EP1103717A1 (de) | 2001-05-30 |
EP1103717B1 true EP1103717B1 (de) | 2005-03-23 |
Family
ID=26007599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00125410A Expired - Lifetime EP1103717B1 (de) | 1999-11-23 | 2000-11-20 | In einem Schwalltopf eines Kraftstoffbehälters eines Kraftfahrzeuges angeordnete Fördereinheit |
Country Status (4)
Country | Link |
---|---|
US (1) | US6478014B1 (de) |
EP (1) | EP1103717B1 (de) |
AT (1) | ATE291692T1 (de) |
ES (1) | ES2238240T3 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7308426B1 (en) * | 1999-08-11 | 2007-12-11 | C-Sam, Inc. | System and methods for servicing electronic transactions |
DE19957066A1 (de) * | 1999-11-26 | 2001-05-31 | Mannesmann Vdo Ag | Saugstrahlpumpe |
JP2003139007A (ja) * | 2001-10-30 | 2003-05-14 | Denso Corp | 燃料供給装置 |
US6951208B2 (en) * | 2003-10-22 | 2005-10-04 | Siemens Vdo Automotive Corporation | Fuel delivery system with flow re-director for improved re-priming sequence |
US7299821B2 (en) | 2003-11-14 | 2007-11-27 | Siemens Vdo Automotive Corporation | Reservoir of fuel delivery module having valve protection structure |
DE10356061B4 (de) * | 2003-12-01 | 2009-04-02 | Continental Automotive Gmbh | Vorrichtung zur Halterung einer Kraftstoffpumpe in einem Kraftstoffbehälter |
DE102004052439A1 (de) * | 2004-10-28 | 2006-05-04 | Siemens Ag | Kraftstoffpumpe und Kraftstoffversorgungsanlage für eine Brennkraftmaschine eines Kraftfahrzeuges mit einer Kraftstoffpumpe |
ATE531927T1 (de) * | 2006-05-01 | 2011-11-15 | Continental Automotive Systems | Kraftstoffpumpe mit innenkanalvorfüllung |
DE102006032098A1 (de) * | 2006-07-11 | 2008-01-24 | Siemens Ag | Einrichtung zum Sammeln von Kraftstoff in einem Kraftstoffbehälter |
DE102006043695A1 (de) | 2006-09-18 | 2008-03-27 | Siemens Ag | Kraftstoff-Fördereinheit für ein Kraftfahrzeug |
EP2031236A3 (de) * | 2007-08-29 | 2012-07-18 | Continental Automotive GmbH | Kraftstofffördereinheit |
DE102008000437A1 (de) * | 2008-02-28 | 2009-09-03 | Robert Bosch Gmbh | Vorrichtung zum Fördern von Kraftstoff |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2928469A1 (de) * | 1979-07-14 | 1981-01-29 | Bosch Gmbh Robert | Befestigungsvorrichtung fuer elektrokraftstoffpumpen |
DE3225929C2 (de) * | 1982-07-10 | 1994-01-20 | Bosch Gmbh Robert | Kraftstoffbehälter für Brennkraftmaschinen, insbesondere von Kraftfahrzeugen |
US4860714A (en) * | 1986-08-20 | 1989-08-29 | Whitehead Engineered Products, Inc. | In-tank fuel pump assembly for fuel-injected engines |
DE3719809C1 (de) * | 1987-06-13 | 1988-06-09 | Daimler Benz Ag | Stautopf fuer Kraftstoffbehaelter |
JP2580021B2 (ja) * | 1988-12-07 | 1997-02-12 | 日産自動車株式会社 | 自動車用燃料タンクの旋回槽 |
US4946351A (en) * | 1989-06-14 | 1990-08-07 | Tecumseh Products Company | Compressor mounting system |
DE9116296U1 (de) * | 1991-04-08 | 1992-07-23 | Vdo Adolf Schindling Ag, 6000 Frankfurt | Kraftstoffbehälteranlage |
ITTO920281A1 (it) * | 1992-03-27 | 1993-09-27 | Siceb Spa | Sopporto per il condotto d'aspirazione di una pompa d'alimentazione del combustibile, particolarmente per un motore a combustione interna |
DE4242242C2 (de) * | 1992-12-15 | 2003-04-30 | Bosch Gmbh Robert | Vorrichtung zum Versorgen der Brennkraftmaschine eines Kraftfahrzeuges mit in einem Vorratstank vorhandenem Kraftstoff |
DE4336574B4 (de) * | 1993-10-27 | 2005-06-02 | Siemens Ag | Kraftstoff-Fördereinheit |
US5452701A (en) * | 1994-05-23 | 1995-09-26 | Walbro Corporation | Turbine fuel pump with fuel jet |
DE4426667A1 (de) | 1994-07-28 | 1996-02-01 | Bosch Gmbh Robert | Vorrichtung zum Fördern von Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine eines Kraftfahrzeuges |
DE19521509A1 (de) * | 1995-06-13 | 1996-12-19 | Bosch Gmbh Robert | Einrichtung zum Fördern von Kraftstoff aus einem Vorratstank zu einer Brennkraftmaschine |
US5875816A (en) * | 1996-05-17 | 1999-03-02 | Robert Bosch Gmbh | Fuel feeding module with integrated fuel fine filter |
DE29700031U1 (de) * | 1997-01-02 | 1998-04-30 | Robert Bosch Gmbh, 70469 Stuttgart | Kraftstofförderaggregat |
FR2778948B1 (fr) * | 1998-05-19 | 2002-03-08 | Bitron France | Ensemble de pompage de carburant et reservoir de vehicule automobile equipe d'un tel ensemble de pompage |
US6231318B1 (en) * | 1999-03-29 | 2001-05-15 | Walbro Corporation | In-take fuel pump reservoir |
US6155793A (en) * | 1999-06-08 | 2000-12-05 | Walbro Corporation | Recessed fuel pump module |
-
2000
- 2000-11-20 EP EP00125410A patent/EP1103717B1/de not_active Expired - Lifetime
- 2000-11-20 AT AT00125410T patent/ATE291692T1/de not_active IP Right Cessation
- 2000-11-20 ES ES00125410T patent/ES2238240T3/es not_active Expired - Lifetime
- 2000-11-22 US US09/718,678 patent/US6478014B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2238240T3 (es) | 2005-09-01 |
ATE291692T1 (de) | 2005-04-15 |
US6478014B1 (en) | 2002-11-12 |
EP1103717A1 (de) | 2001-05-30 |
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