EP1187991B1 - Pompe d'alimentation - Google Patents

Pompe d'alimentation Download PDF

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Publication number
EP1187991B1
EP1187991B1 EP01907576A EP01907576A EP1187991B1 EP 1187991 B1 EP1187991 B1 EP 1187991B1 EP 01907576 A EP01907576 A EP 01907576A EP 01907576 A EP01907576 A EP 01907576A EP 1187991 B1 EP1187991 B1 EP 1187991B1
Authority
EP
European Patent Office
Prior art keywords
impeller
shaft
housing
feed pump
region
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
EP01907576A
Other languages
German (de)
English (en)
Other versions
EP1187991A1 (fr
Inventor
Peter Marx
Bernd Jäger
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
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1187991A1 publication Critical patent/EP1187991A1/fr
Application granted granted Critical
Publication of EP1187991B1 publication Critical patent/EP1187991B1/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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • 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

Definitions

  • the invention relates to a feed pump, in particular for conveying fuel from a fuel tank of a motor vehicle or for conveying washing liquid of a windscreen washer, with a rotatably mounted on a driven shaft impeller and with a part of the impeller at a small distance opposite housing.
  • a feed pump is e.g. from US-A-4,958,984.
  • Such feed pumps are usually designed as a peripheral pump or side channel pump and are known in practice.
  • the housing usually has two housing parts with a recess for the impeller.
  • a particularly small sealing gap is arranged between the impeller and the housing parts.
  • an axial sliding bearing is usually arranged in the sealing gap.
  • a disadvantage of the known feed pump that position tolerances and the angle of inclination of the shaft relative to the housing lead to a grinding of the impeller on the housing. However, this grinding generates strong noise and also reduces the efficiency of the feed pump.
  • the invention is based on the problem of designing a delivery pump of the type mentioned so that it has a particularly low noise and the highest possible efficiency.
  • the radially outer portion of the impeller in the housing can tilt by a predetermined amount or slightly move.
  • the position can be adjusted, for example, by the forces of the axial bearing of the impeller in the housing.
  • a grinding of the impeller on the housing is thereby reliably avoided.
  • Noise is kept particularly low thanks to the invention.
  • the feed pump according to the invention has a particularly high efficiency due to the constant sealing gap in the region adjacent to the guide vanes.
  • the recess could be arranged on a front side of the impeller. To further reduce the noise development of the feed pump according to the invention, however, it contributes, if in each case a recess is arranged in both end faces of the impeller.
  • a game between the shaft and the impeller can be kept particularly low at a proposed pivoting of the impeller according to another advantageous embodiment of the invention, when the impeller is designed to be elastic at least in its radially inner region. In the best case, the impeller may be pressed onto the shaft.
  • the elastic design of the radially inner region allows easy pivoting and axial mobility of the radially outer edge of the impeller.
  • the elastic region of the impeller could, for example, be produced by the impeller having an insert made of an elastic material in this region.
  • the elastic region of the impeller designed according to another advantageous embodiment of the invention is particularly cost if the impeller has a groove arranged concentrically to the shaft.
  • feed pumps in one direction of rotation of the impeller have a much higher efficiency than in the opposite direction of rotation.
  • a planned high efficiency of the feed pump can be particularly easily ensured if the shaft and / or the impeller have means for their positionally correct arrangement.
  • the impeller can not be arranged twisted on the shaft, so that its direction of rotation is reliably fixed.
  • the means for the correct arrangement of the impeller design according to another advantageous embodiment of the invention structurally particularly simple when the impeller has a near one of its end faces arranged projection for engaging in a projection correspondingly shaped, paragraph-like recess of the shaft and if the shaft axially immovable is held opposite the housing.
  • the housing can only be mounted when the impeller is mounted in the correct position on the shaft.
  • the means for the correct arrangement of the impeller require, according to another advantageous embodiment of the invention, a particularly low structural complexity when the shaft has on its lateral surface two non-parallel and / or different dimensions having flats for positive connection in the direction of rotation with a correspondingly shaped recess of the impeller ,
  • Figure 1 shows a sectional view through an inventive, designed as a side channel pump feed pump with a rotatable in a housing 1 impeller 2.
  • the impeller 2 is rotatably and axially slightly slidably mounted on a driven shaft 3.
  • the shaft 3 may be formed, for example, as a motor shaft of an electric motor, not shown.
  • the housing 1 has two held by a ring 4 at a distance housing parts 5, 6 and a rolled at the edges of the housing parts 5, 6 sheet metal strip 7 to the bias against the ring 4.
  • an inlet channel 8 is arranged, while the other housing part 5 has an outlet channel 9.
  • the inlet channel 8 and the outlet channel 9 are each connected to part-annular channels 10, 11.
  • the impeller 2 has in the region of the part-annular channels 10, 11 of vanes 12, 13 limited vane chambers 14, 15. In this area, the housing 1 is the impeller 2 to form sealing gaps with a particularly small distance opposite. In the end faces of the impeller 2 each opposing pockets 16 are arranged by Axialgleitlagern 17, which are interconnected with channels 18. Upon rotation of the impeller 2 in the housing 1, for example, fuel or windscreen washer liquid can be conveyed from the inlet channel 8 through the impeller 2 to the outlet channel 9.
  • the feed pump can of course also be designed as a peripheral pump, in which the blades 12, 13 are arranged on the circumference of the impeller 2.
  • the impeller 2 has in its radially inner region in both end faces in each case a recess 19, 20. These recesses 19, 20 limit the dimensions with which the impeller 2 is connected to the shaft 3 and allow in conjunction with a small clearance of the impeller second on the shaft 3, a slight tilting of the impeller 2 about an axis perpendicular to the plane of the drawing. In this way, the impeller 2 in its radially outer, the blade chambers 14, 15 having region adapted to the dimensions of the housing 1. This adaptation is also improved by the fact that the impeller 2 is designed slightly elastic by the recesses 19, 20 in its radially inner region. The position of the radially outer region of the impeller 2 is adjusted by the forces of the axial sliding bearing 17 and thus prevents grinding of the impeller 2 on the housing parts 5, 6.
  • Figure 2 shows in a sectional view through the feed pump of Figure 1 along the line II - II, that the shaft 3 for rotationally fixed connection with the impeller 2 on its lateral surface has two flats 21, 22.
  • the impeller 2 has a correspondingly shaped shaft 3 recess 23.
  • the flats 21, 22 extend to each other at an angle of ⁇ 180 ° and thus not parallel. As a result, the impeller 2 can be mounted on the shaft 3 only in a direction of rotation provided and thus in the correct position.
  • the flats 21, 22 also have different dimensions.
  • FIG. 3 shows a further embodiment of the feed pump, in which a housing 24 is connected in an axially non-displaceable manner to an electric motor 25 provided for its drive.
  • a rotationally connected positively with an impeller 26 shaft 27 has a shoulder-like recess 28 for receiving a projection 29 of the impeller 26.
  • the housing 24 of the feed pump is axially non-displaceably connected to an electric motor 25.
  • the impeller 26 can be mounted in the housing 24 only in the marked position and thus in a provided direction of rotation.
  • the impeller 26 has a recess 30 in the region of the shaft 27. Due to the dimensions of the recess 30 in the impeller 26, the dimensions of the connection of the impeller 26 are limited to the shaft 27 to an extent provided.
  • the radially outer portion of the impeller 26 can thereby slightly tilt relative to the shaft 27 and thus adapt to tolerances of the housing. Due to the radial dimensions of the recess 30, an intended elasticity of the radially inner region of the impeller 26 can be ensured.
  • Figure 4 shows in a sectional view along the line IV - IV through the feed pump of Figure 3 that the paragraph-like recess 28 of the shaft 27 has a flattening 31 for rotationally fixed connection with a correspondingly shaped recess 32 of the impeller 26.
  • Figure 5 shows a further embodiment of the feed pump in a sectional view. This differs from that of Figure 1, especially in that an impeller 33 has two concentric with the shaft 34 arranged grooves 35, 36. These grooves 35, 36 create an elasticity in the radially inner region of the impeller 33 and therefore allow a low axial mobility and a pivoting of its radially outer portion about an axis perpendicular to the plane of the axis. The impeller 33 may therefore be mounted without play on the shaft 34.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Rotary Pumps (AREA)

Claims (4)

  1. Pompe d'alimentation, destinée notamment à transférer du carburant hors d'un réservoir à carburant d'un véhicule automobile ou à transférer du liquide de lavage dans un système de nettoyage de vitres, et comportant une roue à aubes (2) montée en blocage de rotation sur un arbre d'entraînement (3) et un corps de pompe (1) se trouvant à une certaine distance en face d'une partie de la roue à aubes (2), caractérisée par le fait que la roue à aubes (2, 26, 33) comporte des moyens permettant une mobilité de sa bordure extérieure par rapport à l'arbre (3, 27, 34) dans une direction de pivotement autour d'un axe perpendiculaire à l'arbre (3, 27, 34) et/ou, dans le sens radial, par rapport à sa partie radialement intérieure, lesdits moyens étant tels que la roue à aubes (2, 26, 33) a un enfoncement (19, 20, 30) entourant l'arbre (3, 27, 34) dans sa partie voisine de l'arbre (3, 27, 34).
  2. Pompe d'alimentation selon la revendication 1 ou 2, caractérisée par le fait qu'un enfoncement (19, 20) est disposé dans chacune des faces frontales de la roue à aubes (2, 33).
  3. Pompe d'alimentation selon au moins l'une des revendications précédentes, caractérisée par le fait que la roue à aubes (2, 26, 33) est élastique au moins dans sa partie radialement intérieure.
  4. Pompe d'alimentation selon au moins l'une des revendications précédentes, caractérisée par le fait que la roue à aubes (33) comporte une rainure (35, 36) disposée concentriquement à l'arbre (34).
EP01907576A 2000-04-20 2001-03-03 Pompe d'alimentation Expired - Lifetime EP1187991B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10019909A DE10019909A1 (de) 2000-04-20 2000-04-20 Förderpumpe
DE10019909 2000-04-20
PCT/EP2001/002421 WO2001081768A1 (fr) 2000-04-20 2001-03-03 Pompe d'alimentation

Publications (2)

Publication Number Publication Date
EP1187991A1 EP1187991A1 (fr) 2002-03-20
EP1187991B1 true EP1187991B1 (fr) 2007-01-24

Family

ID=7639658

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01907576A Expired - Lifetime EP1187991B1 (fr) 2000-04-20 2001-03-03 Pompe d'alimentation

Country Status (10)

Country Link
US (1) US6503049B2 (fr)
EP (1) EP1187991B1 (fr)
JP (1) JP2003532010A (fr)
KR (1) KR20020026191A (fr)
CN (1) CN1366585A (fr)
AU (1) AU3550301A (fr)
BR (1) BR0106079A (fr)
DE (2) DE10019909A1 (fr)
ES (1) ES2276766T3 (fr)
WO (1) WO2001081768A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP4271501B2 (ja) * 2003-06-06 2009-06-03 愛三工業株式会社 燃料ポンプ
US9249806B2 (en) 2011-02-04 2016-02-02 Ti Group Automotive Systems, L.L.C. Impeller and fluid pump
JP6135593B2 (ja) * 2013-09-24 2017-05-31 株式会社デンソー 燃料ポンプ
CN107461362A (zh) * 2017-09-30 2017-12-12 江苏大学镇江流体工程装备技术研究院 一种开式侧流道泵水力设计方法
CN108386388B (zh) * 2018-02-26 2022-05-13 江苏大学镇江流体工程装备技术研究院 一种相同流量扬程可选的超低比转速泵及设计方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2080272A (en) * 1934-11-07 1937-05-11 Mcilvaine Burner Corp Control valve for oil burners
US2604852A (en) * 1948-05-03 1952-07-29 Fairbanks Morse & Co Pump impeller
DE2023834A1 (de) * 1970-05-15 1971-11-25 Siemen & Hinsch Gmbh Flügelradbefestigung bei Kreiselpumpen
GB2036179B (en) * 1978-11-28 1983-03-23 Compair Ind Ltd Regenerative rotodynamic compressors and pumps
JPS5853200B2 (ja) * 1981-03-12 1983-11-28 株式会社デンソー 電動式燃料ポンプ装置
JPH0531279Y2 (fr) * 1988-05-25 1993-08-11
DE4123089C2 (de) * 1991-07-12 1998-02-19 Mannesmann Vdo Ag Kraftstoff-Förderaggregat
US5409357A (en) * 1993-12-06 1995-04-25 Ford Motor Company Impeller for electric automotive fuel pump

Also Published As

Publication number Publication date
DE10019909A1 (de) 2001-10-25
US20020012584A1 (en) 2002-01-31
WO2001081768A1 (fr) 2001-11-01
JP2003532010A (ja) 2003-10-28
DE50111939D1 (de) 2007-03-15
US6503049B2 (en) 2003-01-07
AU3550301A (en) 2001-11-07
BR0106079A (pt) 2002-03-05
EP1187991A1 (fr) 2002-03-20
ES2276766T3 (es) 2007-07-01
CN1366585A (zh) 2002-08-28
KR20020026191A (ko) 2002-04-06

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