EP1103723B1 - Pompe à carburant - Google Patents

Pompe à carburant Download PDF

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Publication number
EP1103723B1
EP1103723B1 EP00125423A EP00125423A EP1103723B1 EP 1103723 B1 EP1103723 B1 EP 1103723B1 EP 00125423 A EP00125423 A EP 00125423A EP 00125423 A EP00125423 A EP 00125423A EP 1103723 B1 EP1103723 B1 EP 1103723B1
Authority
EP
European Patent Office
Prior art keywords
fuel pump
fuel
leading
pump according
delivery
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
Application number
EP00125423A
Other languages
German (de)
English (en)
Other versions
EP1103723A2 (fr
EP1103723A3 (fr
Inventor
Karl Eck
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.)
Siemens AG
Original Assignee
Siemens AG
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
Priority claimed from DE10054590A external-priority patent/DE10054590B4/de
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1103723A2 publication Critical patent/EP1103723A2/fr
Publication of EP1103723A3 publication Critical patent/EP1103723A3/fr
Application granted granted Critical
Publication of EP1103723B1 publication Critical patent/EP1103723B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 fuel pump, which for Assembly is provided in a fuel tank, for Conveying fuel to an internal combustion engine Motor vehicle with a in a pump housing rotating, a wreath blade chambers bounding vanes having impeller and with in the pump housing arranged part-annular channels, which with the vane chambers from an inlet channel to one of the Internal combustion engine leading exhaust port and to a form further connection leading delivery chambers, wherein the connection for supplying a fuel within provided the fuel tank conveying suction jet pump is.
  • Such fuel pumps the same time at least one Supply suction jet pump with fuel and fuel to promote the internal combustion engine of the motor vehicle, are commonly used in today's motor vehicles and are known from practice See, for example, US 5,452,701 A.
  • the well-known from practice Fuel pump has a single delivery chamber.
  • a disadvantage of the known fuel pump is that the valve is a costly and trouble-prone component represents. Furthermore, by switching the Valve the amount and pressure of the engine subsidized fuel.
  • the invention is based on the problem of a fuel pump of the type mentioned above, that it is particularly simple and the quantity and the pressure of the pumped to the internal combustion engine Fuel is independent of the suction jet pump.
  • the fuel pump according to the invention through the separate delivery chambers two from each other independent, having a common impeller Pump.
  • the fuel pump according to the invention can be by a corresponding design of the outlet to the channel leading delivery chamber easy on the pressure and the Amount of fuel to be delivered to the internal combustion engine interpret. This gives the internal combustion engine at any time the required amount and the pressure of fuel.
  • the suction jet pump has one of the first delivery chamber separate delivery chamber and also receives at any time Fuel.
  • This delivery chamber can also be designed by constructive measures.
  • a valve for controlling the to the ejector pump or to the Internal combustion engine promoted fuel is thanks to the Invention no longer required.
  • Another advantage the invention is that fuel in the terminal to the suction jet pump undisturbed by the valve the known fuel pump particularly turbulence flows. This leads to a high efficiency of the fuel pump.
  • the fuel pump according to the invention is constructive especially easy when going to the outlet and leading to the terminal conveyor chambers each other enclose concentrically. This allows the delivery chambers each example in length, diameter and location easily to the intended pressure to be delivered and lay out the amount of fuel to be pumped.
  • the delivery chambers could be like separate pumps each connected to an inlet channel. to Reduction of manufacturing costs of the invention Fuel pump, however, it contributes when the delivery chambers are connected to a common inlet channel.
  • Mutual influence of the in the inlet channel to the two delivery chambers flowing fuel can be according to another advantageous embodiment of the invention just avoid if the inlet channel is a extending from a fuel filter to the impeller Partition has, wherein the inlet channel on one side of the Partition wall to the radially inner and on the other side the partition leads to the radially outer delivery chamber.
  • This partition can be in the manufacture of the pump housing Provide or insert later in the inlet channel.
  • connection suction jet pump receives according to another advantageous embodiment of the invention for filling the baffle in the fuel tank a sufficient amount of fuel, though the leading to the terminal conveying chamber made smaller is as the leading to the outlet channel conveying chamber.
  • the wreaths of the vanes could, for example, like for side channel pumps in the end faces of the impeller be arranged.
  • the fuel pump according to the invention designed However, especially space-saving, if the radial outer ring vanes on the circumference of the impeller is arranged.
  • the circumferentially arranged vanes could For example, over the entire height of the impeller extend or as with a peripheral pump on the Corner areas may be arranged on the end faces.
  • the too the connection for the suction jet pump leading delivery chamber is particularly compact in cross section when the radially outer rim vanes in a sub-area the height of the impeller protrudes from the circumference thereof and if the part-annular channel designed like a groove is.
  • Fuel pump helps when the groove-like designed partially annular channel substantially in one of the housing parts arranged and from the other housing part is limited laterally.
  • the fuel pump according to the invention has particularly low radial dimensions when to the outlet channel and to the terminal leading delivery chambers in the direction of rotation the impeller are arranged one behind the other. This design also leads to a further reduction the manufacturing costs for the fuel pump according to the invention, because the impeller thereby only a single Wreath vanes needed.
  • the internal combustion engine and the suction jet pump obtained according to another advantageous embodiment of the invention each the intended amount of fuel, if the leading to the terminal conveying chamber is shorter than the other delivery chamber.
  • Each of the funding chambers could, for example, via each a separate inlet channel connected to a fuel filter be. To further reduce manufacturing costs it contributes to the fuel pump according to the invention however, when leading to the delivery chambers inlet channels a connection with a common fuel filter exhibit.
  • connection of the fuel filter to the pump housing designed according to another advantageous development
  • the invention particularly simple when the Inlet channel within the pump housing to the individual randomlyfflen branches out.
  • connection for the suction jet pump and the outlet channel can be used to compensate for axial forces according to a another advantageous embodiment of the invention directly arrange opposite if the impeller in the area each of its end faces in each case a delivery chamber and if the one delivery chamber to the outlet channel and the other delivery chamber led to the terminal is.
  • FIG. 1 shows schematically a in a swirl pot 1 of a Fuel tank 2 of a motor vehicle mounted Feed unit 3.
  • the conveyor unit 3 has one of a Electric motor 4 driven fuel pump 5 and is sealing in an opening in the bottom of the swirl pot. 1 used.
  • the fuel pump 5 has a rotating, on a shaft 6 of the electric motor 4 rotatably mounted Impeller 7 and a pump housing 8 with two housing parts 9, 10 for receiving the impeller 7.
  • the delivery unit 3 is a suction jet pump 11 is arranged.
  • the suction jet pump 11 is connected to a Fuel pump 5 connected propellant line 12 with Fuel supplied.
  • the on the propellant line 12th to the suction jet pump 11 funded fuel passes first to a nozzle 13.
  • the nozzle 13 opposite a mixing tube 14 is mounted in the conveyor unit 3.
  • the suction jet pump 11 sucks fuel from the fuel tank 2 and promotes this via the mixing tube 14 in the swirl pot 1.
  • the fuel pump 5 sucks fuel via a fuel filter 15 from the swirl pot 1 via a line 16 and promotes this via another line 17 to a not shown internal combustion engine of the motor vehicle.
  • Pump housing 8 are an inlet channel 18 for sucking the Fuel and one with the to the internal combustion engine leading line 17 connected outlet channel 19 is arranged.
  • the pump housing 8 has a terminal 20th for leading to the nozzle 13 of the suction jet pump 11 Propellant line 12.
  • the inlet channel 18 and the outlet channel 19 are for simplicity the drawing in the direction of rotation of the impeller. 7 shown offset by 180 °. Usually the angle is between the inlet port 18 and the outlet port 19, however about 270 ° - 330 °.
  • FIG. 2 shows the fuel pump 5 from FIG. 1 in longitudinal section.
  • the fuel pump 5 has two concentric enclosing delivery chambers 21, 22.
  • the delivery chambers 21, 22 are guided by a led to the impeller 7 edge 23 separated from each other.
  • One of the delivery chambers 21 leads from the inlet channel 18 to the outlet channel 19.
  • the other Delivery chamber 22 leads from the inlet channel 18 to the terminal 20 of the propellant line shown in Figure 1 12.
  • the delivery chambers 21, 22 are each made in arranged the housing parts 9, 10 of the pump housing 8 part-annular channels 24 - 27 and out in the impeller. 7 arranged and bounded by vanes 28 - 31 Bucket chambers 32 - 35 together.
  • vanes 28, 29 leading to the outlet channel 19 conveying chamber 21st are each arranged in the end faces of the impeller 7.
  • Opposing blade chambers 32, 33 the leading to the outlet channel 19 conveying chamber 21 are connected to each other, so that the delivery chamber 21st axially through the impeller 7 passes.
  • vanes 30, 31 of the connection 20 to the fuel line 12th leading delivery chamber 22 are on the perimeter and the End faces of the impeller 7 is arranged.
  • the to the outlet channel 19 leading delivery chamber 21 is thus under Art a side channel pump, while to the Connection 20 leading delivery chamber 22 in the manner of a peripheral pump is designed.
  • the outlet channel 19 and the zu leading the fuel line 12 shown in Figure 1 leading Terminal 20 are opposite each other.
  • the to the Outlet 19 leading delivery chamber 21 has a larger Cross-section on than to the terminal 20 of themaschinesch Gustav 12 leading feed chamber 22.
  • FIG 2 shows that in the inlet channel 18 one for separation the leading to the delivery chambers 21, 22 flows provided partition 36 is arranged.
  • Figure 3 shows in a sectional view through the Fuel pump 5 of Figure 2 along the line III - III the outlet channel 19 having housing part 9 of the pump housing 8. It can be seen that the angle between the arranged at the beginning of the feed chamber 21, shown in Figure 2 inlet channel 18 relative to the Outlet channel 19 is offset by about 300 °.
  • the semi-annular Channels 24, 26 of the two delivery chambers 21, 22 extend each over the same angular range.
  • FIG. 4 shows a further embodiment of the fuel pump 5 of Figure 1.
  • a semi-annular Channel 38 of this delivery chamber 22 is as a formed the height of the impeller 7 correspondingly wide groove.
  • the fuel pump 5 extends a part-annular Channel 39 of the leading to the terminal 20 conveying chamber 22 only over a portion of the height of the Impeller 7. Furthermore, this part-annular channel 39 only in one of the housing parts 9 of the pump housing. 8 arranged. As a result, the other housing part 10 can be produce particularly inexpensive. Vanes 40 of these Delivery chamber 22 are of the circumference of the impeller. 7 from.
  • Fuel pump 5 according to the invention differs from the figure 5 mainly by the fact that vanes 41 leading to the terminal 20 conveying chamber 22 within of the impeller 7 are arranged. Furthermore has the arranged on the circumference of the impeller 7 conveying chamber 22 a round, for the formation of a circulation flow optimized cross-section.
  • FIG. 7 shows the fuel pump 5 from FIG. 1 with two seen in the direction of rotation of the impeller 7 in a row arranged delivery chambers 42, 43.
  • the delivery chambers 42, 43 have each arranged in the housing parts 9, 10 part-annular channels 44-47 and arranged in the impeller 7, from vanes 48 - 51 limited vane chambers 52-55.
  • this is the inlet channel 18 Housing part 10 of the pump housing 8 in one Sectional view through the fuel pump 5 of FIG 7 along the line VIII - VIII shown.
  • the inlet channel 18 in each of this Housing part 10 arranged partially annular channels 45, 47 opens.
  • FIG. 9 shows the fuel pump 5 from FIG. 1 with one another opposite, on each face of the impeller 7 arranged delivery chambers 58, 59.
  • the delivery chambers 58, 59 are separated from each other by the impeller 7.
  • To the port 20 for the shown in Figure 1 maschinendhausentechnisch 12 leading delivery chamber 59th has a much smaller cross section than that to the Outlet channel 19 leading delivery chamber 58.
  • the inlet channel 18 is guided radially to the two delivery chambers 58, 59.
  • the Suction jet pump 11 in a bottom of the swirl pot. 1 located opening, leaving fuel out the fuel tank 2 via the mixing tube 14 in the Swirl pot 1 passes.
  • the conveyor unit 3 is arranged.
  • the fuel line 12 and the mixing nozzle 13 are suitable connected with each other.
  • the fuel pump is just above the ground it swirl pot 1, so that the inlet port 18 very short is executed. This will improve the intake performance achieved, and the fuel pump 5 promotes Fuel over the line after a very short time 17 to the internal combustion engine of the motor vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (16)

  1. Pompe à carburant (5), prévue pour être montée dans un réservoir de carburant, pour refouler du carburant vers un moteur à combustion inteme d'un véhicule automobile, comprenant un rotor (7) toumant dans un carter de pompe, présentant des aubes directrices limitant au moins une couronne de chambres d'aubes (32 - 35) et comprenant des conduits (24 - 27) de forme partiellement annulaire disposés dans le carter de pompe qui forment avec les chambres d'aubes des chambres de refoulement conduisant d'un conduit d'entrée (18) à un conduit de sortie (19) conduisant au moteur à combustion inteme et à un autre raccord (20), le raccord étant prévu pour l'alimentation d'une pompe à jet aspirant refoulant du carburant à l'intérieur du réservoir de carburant, caractérisée en ce que les chambres de refoulement (21, 22, 42, 43, 58, 59) conduisant au conduit de sortie (19) et au raccord (20) sont séparées l'une de l'autre.
  2. Pompe à carburant selon la revendication 1, caractérisée en ce que les chambres de refoulement (21, 22) conduisant au conduit de sortie (19) et au raccord (20) sont concentriques.
  3. Pompe à carburant selon la revendication 1 ou 2, caractérisée en ce que les chambres de refoulement (21, 22, 42, 43, 58, 59) sont raccordées à un conduit d'entrée commun (18).
  4. Pompe à carburant selon au moins l'une des revendications précédentes, caractérisée en ce que le conduit d'entrée (18) possède une paroi de séparation (36) s'étendant depuis un filtre à carburant (15) jusqu'au rotor (7), le conduit d'entrée (18) conduisant d'un côté de la paroi de séparation (36) à la chambre de refoulement radialement interne (21) et de l'autre côté de la paroi de séparation (36) à la chambre de refoulement radialement externe (22).
  5. Pompe à carburant selon au moins l'une des revendications précédentes, caractérisée en ce que la chambre de refoulement (22, 43, 59) conduisant au raccord (20) est plus petite que la chambre de refoulement (21, 42, 58) conduisant au conduit de sortie (19).
  6. Pompe à carburant selon au moins l'une des revendications précédentes, caractérisée en ce que le raccord (20) et le conduit de sortie (19) sont disposés perpendiculairement à des faces frontales du rotor (7) opposées l'une à l'autre.
  7. Pompe à carburant selon au moins l'une des revendications précédentes, caractérisée en ce que la couronne d'aubes directrices radialement externe (30, 31, 37, 40, 41) est disposée sur la périphérie du rotor (7).
  8. Pompe à carburant selon au moins l'une des revendications précédentes, caractérisée en ce que la couronne d'aubes directrices radialement externe (40) fait saillie dans une région partielle de la hauteur du rotor (7) depuis sa périphérie, et que son conduit de forme partiellement annulaire (39) est réalisé en forme de rainure.
  9. Pompe à carburant selon au moins l'une des revendications précédentes, caractérisée en ce que le conduit partiellement annulaire (39) en forme de rainure est disposé essentiellement dans l'une des parties de carter (9) et est limité latéralement par l'autre partie de carter (10).
  10. Pompe à carburant selon au moins l'une des revendications précédentes, caractérisée en ce que les chambres de refoulement (42, 43) conduisant au conduit de sortie (19) et au raccord (20) sont disposées l'une derrière l'autre, vu dans le sens de rotation du rotor (7).
  11. Pompe à carburant selon au moins l'une des revendications précédentes, caractérisée en ce que la chambre de refoulement (43) conduisant au raccord (20) est plus courte que l'autre chambre de refoulement (42).
  12. Pompe à carburant selon au moins l'une des revendications précédentes, caractérisée en ce que les conduits d'entrée (18) conduisant aux chambres de refoulement (21, 22, 42, 43, 58, 59) présentent une connexion à un filtre à carburant commun (15).
  13. Pompe à carburant selon au moins l'une des revendications précédentes, caractérisée en ce que le conduit d'entrée (18) se ramifie à l'intérieur du carter de la pompe (8) vers les chambres de refoulement individuelles (58, 59).
  14. Pompe à carburant selon au moins l'une des revendications précédentes, caractérisée en ce que le rotor (7) présente, dans la région de chacune de ses faces frontales, une chambre de refoulement respective (58, 59) et en ce que l'une des chambres de refoulement (58) conduit au conduit de sortie (19) et l'autre chambre de refoulement (59) conduit au raccord (20).
  15. Pompe à carburant selon au moins l'une des revendications précédentes, caractérisée en ce que le conduit d'entrée (18) de la chambre de refoulement conduisant au raccord (20) de la pompe à jet aspirant (11) est prévu pour s'étendre jusque dans le réservoir de carburant (2).
  16. Pompe à carburant selon au moins l'une des revendications précédentes, caractérisée en ce que les chambres de refoulement (21, 22, 42, 43, 58, 59) sont disposées directement au-dessus du fond du pot de brise-jet (1) et le raccord (20) est connecté à la pompe à jet aspirant (11) disposée latéralement à côté de la pompe à carburant (5).
EP00125423A 1999-11-23 2000-11-20 Pompe à carburant Expired - Lifetime EP1103723B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19956144 1999-11-23
DE19956144 1999-11-23
DE10054590 2000-11-03
DE10054590A DE10054590B4 (de) 1999-11-23 2000-11-03 Kraftstoffpumpe

Publications (3)

Publication Number Publication Date
EP1103723A2 EP1103723A2 (fr) 2001-05-30
EP1103723A3 EP1103723A3 (fr) 2002-04-17
EP1103723B1 true EP1103723B1 (fr) 2003-03-26

Family

ID=26007556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00125423A Expired - Lifetime EP1103723B1 (fr) 1999-11-23 2000-11-20 Pompe à carburant

Country Status (4)

Country Link
US (1) US6443693B1 (fr)
EP (1) EP1103723B1 (fr)
BR (1) BR0005528A (fr)
ES (1) ES2194667T3 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10143809C1 (de) 2001-09-06 2002-10-17 Siemens Ag Förderpumpe
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
JP4252507B2 (ja) * 2004-07-09 2009-04-08 愛三工業株式会社 燃料ポンプ
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
US8206126B2 (en) * 2006-05-01 2012-06-26 Continental Automotive Systems Us, Inc. Fuel pump with inner channel priming
DE102007026533A1 (de) * 2007-06-08 2008-12-11 Continental Automotive Gmbh Kraftstoffpumpe
US9249806B2 (en) 2011-02-04 2016-02-02 Ti Group Automotive Systems, L.L.C. Impeller and fluid pump
KR101177293B1 (ko) * 2011-04-05 2012-08-30 주식회사 코아비스 자동차용 터빈형 연료펌프
US10948151B1 (en) 2019-03-28 2021-03-16 Roy M. Brown Vehicle high beam with selective directional illumination

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3303352A1 (de) 1983-02-02 1984-08-02 Robert Bosch Gmbh, 7000 Stuttgart Aggregat zum foerdern von kraftstoff, vorzugsweise aus einem vorratstank zur brennkraftmaschine, insbesondere eines kraftfahrzeuges
DE4111341A1 (de) 1991-04-08 1992-10-15 Vdo Schindling Kraftstoffbehaelteranlage
DE4224981C2 (de) * 1992-07-29 2003-06-26 Bosch Gmbh Robert Einrichtung zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeuges
US5452701A (en) * 1994-05-23 1995-09-26 Walbro Corporation Turbine fuel pump with fuel jet
US5413457A (en) 1994-07-14 1995-05-09 Walbro Corporation Two stage lateral channel-regenerative turbine pump with vapor release
DE4427540C2 (de) 1994-08-04 2000-07-13 Mannesmann Vdo Ag Kraftstoffversorgungseinrichtung
US5596970A (en) * 1996-03-28 1997-01-28 Ford Motor Company Fuel pump for an automotive fuel delivery system
DE19622560A1 (de) * 1996-06-05 1997-12-11 Bosch Gmbh Robert Aggregat zum Fördern von Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine eines Kraftfahrzeugs
DE19719609A1 (de) 1997-05-09 1998-11-12 Bosch Gmbh Robert Aggregat zum Fördern von Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine eines Kraftfahrzeuges
DE19725249C2 (de) * 1997-06-14 2002-05-02 Siemens Ag Förderpumpe
JPH11218087A (ja) * 1997-11-03 1999-08-10 Walbro Corp 力均衡横みぞ型燃料ポンプ
DE19811893A1 (de) * 1998-03-18 1999-09-23 Bosch Gmbh Robert Mehrstufige Seitenkanalpumpe für Kraftstoff für ein Kraftfahrzeug

Also Published As

Publication number Publication date
BR0005528A (pt) 2001-08-07
US6443693B1 (en) 2002-09-03
ES2194667T3 (es) 2003-12-01
EP1103723A2 (fr) 2001-05-30
EP1103723A3 (fr) 2002-04-17

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