EP1103723A2 - Pompe à carburant - Google Patents

Pompe à carburant Download PDF

Info

Publication number
EP1103723A2
EP1103723A2 EP00125423A EP00125423A EP1103723A2 EP 1103723 A2 EP1103723 A2 EP 1103723A2 EP 00125423 A EP00125423 A EP 00125423A EP 00125423 A EP00125423 A EP 00125423A EP 1103723 A2 EP1103723 A2 EP 1103723A2
Authority
EP
European Patent Office
Prior art keywords
fuel
fuel pump
leading
connection
pump according
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.)
Granted
Application number
EP00125423A
Other languages
German (de)
English (en)
Other versions
EP1103723A3 (fr
EP1103723B1 (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
Mannesmann VDO AG
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 Mannesmann VDO AG, Siemens AG filed Critical Mannesmann VDO 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 Mounting in a fuel tank is provided for Delivering fuel to an internal combustion engine Motor vehicle with itself in a pump housing rotating guide vanes delimiting a ring of vane chambers having impeller and in the pump housing arranged partially annular channels, which with the vane chambers from one inlet duct to one Internal combustion engine leading exhaust duct and to one form further connection leading delivery chambers, whereby the connector to supply a fuel inside of the fuel jet-promoting suction jet pump is provided is.
  • Such fuel pumps which at the same time have at least one Supply suction jet pump with fuel and fuel promote to the internal combustion engine of the motor vehicle, are often used in today's motor vehicles and are known from practice.
  • the one known from practice Fuel pump has a single delivery chamber.
  • fuel becomes the exhaust port and conveyed to the connection leading to the suction jet pump.
  • connection leading to the suction jet pump is a valve that opens above a specified pressure arranged. This will ensure that below of the intended pressure, the total output Fuel is delivered to the internal combustion engine.
  • a disadvantage of the known fuel pump is that the valve is a cost-intensive and fault-prone component represents. Furthermore fluctuates by switching the Valve the amount and pressure of the engine delivered fuel.
  • the invention is based on the problem of a fuel pump of the type mentioned at the beginning that it is particularly simple and the amount and the pressure of the delivered to the internal combustion engine Fuel is independent of the suction jet pump.
  • the fuel pump according to the invention has this design through the separate delivery chambers two from each other independent, shared a wheel Pump.
  • the fuel pump according to the invention can be by a corresponding design of the outlet duct leading delivery chamber simply on the pressure and the Amount of fuel to be delivered to the internal combustion engine lay out. This gives the internal combustion engine the required quantity and pressure of fuel at all times.
  • 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 to control the to the suction jet pump or to the Fuel delivered by the internal combustion engine is thanks to the Invention no longer required.
  • Another advantage the invention is that fuel in the port to the suction jet pump undisturbed by the valve the known fuel pump is particularly swirl-free flows. This leads to a high efficiency of the fuel pump.
  • the fuel pump according to the invention is constructive particularly easy if the to the outlet duct and the delivery chambers leading to the connection each other enclose concentrically. This allows the delivery chambers each in length, diameter, for example and location simply on the intended pressure to be conveyed and design the amount of fuel to be delivered.
  • the delivery chambers could be like separate pumps each be connected to an inlet duct.
  • fuel pump helps when the delivery chambers are connected to a common inlet duct.
  • the inlet duct is one extending from a fuel filter to the impeller Partition has, with the inlet channel on one side of the Partition to the radially inner and on the other side the partition leads to the radially outer delivery chamber.
  • This partition can be used in the manufacture of the pump housing provide or insert later into the inlet duct.
  • suction jet pump connected to the connection receives according to another advantageous development of the invention for filling the surge pot in the fuel tank a sufficient amount of fuel if the delivery chamber leading to the connection is made smaller is as the delivery chamber leading to the outlet duct.
  • the wreaths of the guide vanes could be like with side channel pumps in the front of the impeller be arranged.
  • the fuel pump according to the invention designed However, it is particularly space-saving if the radial outer rim guide vanes on the circumference of the impeller is arranged.
  • the guide vanes arranged on the circumference could for example over the entire height of the impeller extend or as with a peripheral pump over the Corner areas can be arranged on the end faces.
  • the too the connection for the suction jet pump leading delivery chamber is particularly compact in cross section if the radially outer rim of guide vanes in a partial area the height of the impeller protrudes from its circumference and if their partially annular channel is designed like a groove is.
  • Fuel pump helps when the groove-like designed partially annular channel essentially in one of the housing parts arranged and from the other housing part is laterally limited.
  • the fuel pump according to the invention is particularly small radial dimensions if that to the outlet duct and conveying chambers leading to the connection in the direction of rotation of 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 is only one Wreath guide vanes required.
  • Each of the delivery chambers could, for example, each its own inlet duct connected to a fuel filter his. To further reduce manufacturing costs for the fuel pump according to the invention it carries however, when inlet channels leading to the delivery chambers connect to a common fuel filter exhibit.
  • connection of the fuel filter to the pump housing is designed according to another advantageous development the invention particularly simple if the Inlet channel within the pump housing to the individual Delivery chambers branched out.
  • connection for the suction jet pump and the outlet channel can be used to compensate for axial forces other advantageous development of the invention directly Arrange opposite if the impeller is in the area each of its end faces has a delivery chamber and if the one delivery chamber to the outlet channel and the other delivery chamber led to the port is.
  • FIG. 1 shows schematically one in a baffle 1 Mounted fuel tank 2 of a motor vehicle Conveyor unit 3.
  • Conveyor unit 3 has one of one Electric motor 4 driven fuel pump 5 and is sealing into an opening in the bottom of the baffle 1 used.
  • the fuel pump 5 has a rotating, on a shaft 6 of the electric motor 4 rotatably attached Impeller 7 and a pump housing 8 with two housing parts 9, 10 to accommodate the impeller 7.
  • a suction jet pump 11 is arranged in the floor area.
  • the suction jet pump 11 is connected to the Fuel pump 5 connected propellant line 12 with Fuel supplied.
  • the via the propellant line 12 fuel delivered to the suction jet pump 11 first to a nozzle 13.
  • a mixing tube 14 is fastened in the conveyor unit 3.
  • the suction jet pump 11 sucks fuel from the fuel tank 2 and conveys this via the mixing tube 14 into the baffle 1.
  • Fuel filter shown may be arranged between the mixing tube 14 and the fuel tank 2 .
  • the fuel pump 5 sucks 15 fuel through a fuel filter from the surge pot 1 via a line 16 and promotes this via a further line 17 to one Internal combustion engine of the motor vehicle, not shown.
  • the currents are in the drawing of the fuel marked with arrows.
  • Pump housing 8 are an inlet channel 18 for sucking in Fuel and one with the internal combustion engine leading line 17 connected outlet channel 19 is arranged.
  • the pump housing 8 also has a connection 20 for the 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 simplification the drawing in the direction of rotation of the impeller 7 shown offset by 180 °. Usually the angle is between the inlet duct 18 and the outlet duct 19, however approx. 270 ° - 330 °.
  • FIG 2 shows the fuel pump 5 of Figure 1 in longitudinal section.
  • the fuel pump 5 has two concentric enclosing conveying chambers 21, 22.
  • the conveying chambers 21, 22 are guided by an edge up to the impeller 7 23 separated from each other.
  • One of the delivery chambers 21 leads from inlet duct 18 to outlet duct 19.
  • the other Delivery chamber 22 leads from the inlet channel 18 to the connection 20 of the propellant line shown in Figure 1 12.
  • the delivery chambers 21, 22 each consist of the housing parts 9, 10 of the pump housing 8 arranged partially annular channels 24 - 27 and out in the impeller 7 arranged and delimited by guide vanes 28-31 Blade chambers 32-35 together.
  • the guide vanes 28, 29 of the delivery chamber 21 leading to the outlet channel 19 are each arranged in the end faces of the impeller 7.
  • Guide vanes 30, 31 to the connection 20 of the propellant line 12 leading delivery chamber 22 are on the scope and End faces of the impeller 7 arranged.
  • the to the outlet duct 19 leading funding chamber 21 is thus according to Art a side channel pump, while the to Connection 20 leading delivery chamber 22 in the manner of a peripheral pump is designed.
  • the outlet channel 19 and the to leading propellant line 12 shown in Figure 1 Terminal 20 face each other.
  • the to the Outlet channel 19 leading delivery chamber 21 has a larger one Cross section on than that to the terminal 20 of the Propellant line 12 leading delivery chamber 22.
  • Figure 2 shows that in the inlet channel 18 one for separation of the flows leading to the delivery chambers 21, 22 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 housing part 9 of the pump housing which has the outlet channel 19 8. It can be seen here that the angle between the one arranged at the beginning of the delivery chamber 21, Inlet duct 18 shown in Figure 2 compared to the Outlet channel 19 is offset by approximately 300 °.
  • the part-ring shaped Channels 24, 26 of the two delivery chambers 21, 22 extend each over the same angular range.
  • Figure 4 shows a further embodiment of the fuel pump 5 from Figure 1.
  • FIG 4 shows a further embodiment of the fuel pump 5 from Figure 1.
  • In contrast to the embodiment from Figure 2 have guide vanes 37 to the Connection 20 of the propellant line shown in Figure 1 12 leading delivery chamber 22 one over the entire Height of the impeller 7 constant dimension.
  • a partial ring Channel 38 of this delivery chamber 22 is as one the height of the impeller 7 formed correspondingly wide groove.
  • the fuel pump 5 extends a part-ring Channel 39 of the delivery chamber leading to the connection 20 22 only over part of the height of the Impeller 7. Furthermore, this is part-annular channel 39 only in one of the housing parts 9 of the pump housing 8 arranged. This allows the other housing part 10 manufacture particularly inexpensively. Guide vanes 40 of these Delivery chamber 22 are from the circumference of the impeller 7 from.
  • Fuel pump 5 according to the invention differs from the one in FIG. 5 primarily in that guide vanes 41 of the feed chamber 22 leading to the connection 20 within of the impeller 7 are arranged. Still has the delivery chamber arranged on the circumference of the impeller 7 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 one behind the other arranged delivery chambers 42, 43.
  • the delivery chambers 42, 43 each have arranged in the housing parts 9, 10 partially annular channels 44 - 47 and arranged in the impeller 7, Blade chambers delimited by guide vanes 48-51 52-55.
  • FIG. 8 that is the inlet channel 18 Housing part 10 of the pump housing 8 in one Sectional view through the fuel pump 5 from FIG 7 along the line VIII - VIII shown.
  • the inlet duct 18 in each of those in this Housing part 10 arranged part-annular channels 45, 47 flows.
  • the partially annular channels 45, 47 and thus the delivery chambers 42, 43 are up to the Impeller 7 guided sills 56, 57 separated from each other.
  • the one to the connection 20 of that shown in Figure 1 Propellant line 12 leading partially annular channel 47 is much shorter than that leading to the outlet channel 19 partially annular channel 45.
  • the delivery chambers 42, 43 lead each other in the area Blade chambers 52-55 axially through the impeller 7.
  • Figure 9 shows the fuel pump 5 of Figure 1 with each other opposite, on each end of the impeller 7 arranged delivery chambers 58, 59.
  • the delivery chambers 58, 59 are separated from each other by the impeller 7.
  • the connection 20 for that shown in Figure 1 Propellant line 12 leading delivery chamber 59 has a much smaller cross section than that of the Outlet channel 19 leading delivery chamber 58.
  • the inlet channel 18 is guided radially to the two delivery chambers 58, 59.

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)
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 true EP1103723A2 (fr) 2001-05-30
EP1103723A3 EP1103723A3 (fr) 2002-04-17
EP1103723B1 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)

Cited By (2)

* 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
WO2008148627A1 (fr) 2007-06-08 2008-12-11 Continental Automotive Gmbh Pompe d'alimentation en carburant

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7037066B2 (en) 2002-06-18 2006-05-02 Ti Group Automotive Systems, L.L.C. Turbine fuel pump impeller
US6932562B2 (en) * 2002-06-18 2005-08-23 Ti Group Automotive Systems, L.L.C. Single stage, dual channel turbine fuel pump
JP4252507B2 (ja) * 2004-07-09 2009-04-08 愛三工業株式会社 燃料ポンプ
US7632060B2 (en) * 2005-01-24 2009-12-15 Ford Global Technologies, Llc Fuel pump having dual flow channel
US7165932B2 (en) * 2005-01-24 2007-01-23 Visteon Global Technologies, Inc. Fuel pump having dual single sided impeller
ATE531927T1 (de) * 2006-05-01 2011-11-15 Continental Automotive Systems Kraftstoffpumpe mit innenkanalvorfüllung
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452701A (en) * 1994-05-23 1995-09-26 Walbro Corporation Turbine fuel pump with fuel jet
US5596970A (en) * 1996-03-28 1997-01-28 Ford Motor Company Fuel pump for an automotive fuel delivery system
DE19811893A1 (de) * 1998-03-18 1999-09-23 Bosch Gmbh Robert Mehrstufige Seitenkanalpumpe für Kraftstoff für ein Kraftfahrzeug

Family Cites Families (9)

* 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
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
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452701A (en) * 1994-05-23 1995-09-26 Walbro Corporation Turbine fuel pump with fuel jet
US5596970A (en) * 1996-03-28 1997-01-28 Ford Motor Company Fuel pump for an automotive fuel delivery system
DE19811893A1 (de) * 1998-03-18 1999-09-23 Bosch Gmbh Robert Mehrstufige Seitenkanalpumpe für Kraftstoff für ein Kraftfahrzeug

Cited By (4)

* 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
US7497656B2 (en) 2001-09-06 2009-03-03 Siemens Aktiengesellschaft Supply pump
WO2008148627A1 (fr) 2007-06-08 2008-12-11 Continental Automotive Gmbh Pompe d'alimentation en carburant
JP2010529349A (ja) * 2007-06-08 2010-08-26 コンチネンタル オートモーティヴ ゲゼルシャフト ミット ベシュレンクテル ハフツング 燃料ポンプ

Also Published As

Publication number Publication date
ES2194667T3 (es) 2003-12-01
US6443693B1 (en) 2002-09-03
EP1103723A3 (fr) 2002-04-17
EP1103723B1 (fr) 2003-03-26
BR0005528A (pt) 2001-08-07

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