EP1245821A1 - Aggregat zum Fördern von Kraftstoff - Google Patents

Aggregat zum Fördern von Kraftstoff Download PDF

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Publication number
EP1245821A1
EP1245821A1 EP02005003A EP02005003A EP1245821A1 EP 1245821 A1 EP1245821 A1 EP 1245821A1 EP 02005003 A EP02005003 A EP 02005003A EP 02005003 A EP02005003 A EP 02005003A EP 1245821 A1 EP1245821 A1 EP 1245821A1
Authority
EP
European Patent Office
Prior art keywords
pump
plate
support plate
base plate
intermediate plate
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.)
Withdrawn
Application number
EP02005003A
Other languages
German (de)
English (en)
French (fr)
Inventor
Peter Schelhas
Klaus Funke
Thomas Wuensch
Lothar Sossdorf
Klaus Schubert
Johann Rothkopf
Adam Wilhelm
Klaus Kreller
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1245821A1 publication Critical patent/EP1245821A1/de
Withdrawn legal-status Critical Current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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F04C2/3445—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the vanes having the form of rollers, slippers or the like
    • 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
    • F02M37/045—Arrangements for driving rotary positive-displacement 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
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/008—Enclosed motor pump units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/90—Improving properties of machine parts
    • F04C2230/91—Coating

Definitions

  • the invention is based on a unit for conveying Fuel according to the preamble of claim 1.
  • Such an assembly is known from DE 44 37 377 A1.
  • This unit has a drive motor and one Pump part arranged in a common housing are.
  • the pump part has one in a pump chamber arranged, rotating around the drive motor driven pump rotor.
  • the pump rotor has its circumference distributes several radial grooves in which each have a radial displacement element in the form of a roller is movably guided.
  • the pump chamber is towards the Rotation axis of the pump rotor on the one hand through a base plate and limited to the drive motor by a support plate.
  • the Pump rotor In the radial direction with respect to the axis of rotation of the Pump rotor is the pump chamber through an intermediate plate limited which is an eccentric to the axis of rotation of the Pump rotor formed recess in which the Unroll conveyor elements at least indirectly.
  • the Base plate, the intermediate plate and the support plate are as separate components executed, which by means of screws to a connected to each other in the housing inserted unit are.
  • the Support plate and the intermediate plate in their position to each other can be adjusted very precisely to the location and size of the itself due to the eccentric arrangement of the recess Intermediate plate between the recess and the pump rotor correctly forming crescent-shaped gap.
  • the Manufacturing and assembly of the known unit is therefore expensive and complex.
  • the unit according to the invention with the features according to Claim 1 has the advantage that the Training of the support plate and the intermediate plate as one-piece assembly requires fewer items are, so that the manufacture and assembly are simplified because fewer individual parts are to be assembled and the complex Setting between support plate and intermediate plate eliminated.
  • FIG. 1 shows an assembly for conveying Fuel in a longitudinal section and Figure 2 a Pump part of the unit in an exploded view.
  • FIG. 1 and 2 An assembly shown in Figures 1 and 2 is used for Pumping fuel, especially from a Reservoir to an internal combustion engine Motor vehicle.
  • the unit has an electrical Drive motor 10 and a pump part 12, which in one common cylindrical housing 14 side by side are arranged.
  • the housing 14 is at the end where the Drive motor 10 is arranged by means of a cover 16 locked.
  • Electrical connections 18 are on the cover 16 for contacting the drive motor 10 and a Outlet port 20 arranged through which the pump part 12th promoted and flowing through the drive motor 10 Fuel leaks from the unit.
  • At the outlet nozzle 20 is one for an injection system of the internal combustion engine leading line connected.
  • the pump part 12 has one through the drive motor 10 revolving driven disk-shaped pump rotor 22, wherein the axis of rotation of the pump rotor 22 denotes 24 is.
  • the pump rotor 22 has several, for example five distributed over its circumference radial grooves 26, which starting from the circumference of the pump rotor 22 over part of the radial extension of the pump rotor 22 radially inwards extend.
  • Displacement element 28 arranged radially movable.
  • Displacement element 28 can, for example, rollers, balls or other rolling elements can be used.
  • the pump rotor 22 is arranged in a pump chamber 30, which in the direction of the axis of rotation 24 towards the drive motor 10 is limited by a support plate 32.
  • a support plate 32 In the axial direction away from the drive motor 10 connects to the support plate 32 an intermediate plate 34 through which the pump chamber 30 in radial direction is limited.
  • the support plate 32 has a bore 31 for passage into the pump chamber 30 protruding armature shaft 11 of the drive motor 10.
  • the Intermediate plate 34 has an axial recess 36 which extends to the support plate 32 and in cross section for example, at least approximately circular is.
  • the recess 36 is eccentric to the axis of rotation 24 of the Pump rotor 22 arranged.
  • the support plate 32 and the Intermediate plate 34 are an integral unit formed, the intermediate plate 34 as a rotating Edge protrudes from the support plate 32 in the axial direction.
  • the the side of the support plate 32 delimiting the pump chamber 30 is within the recess 36 of the intermediate plate 34 at least approximately flat.
  • the displacement elements 28 roll on Inner circumference of the recess 36.
  • a sliding ring 38 is arranged, which a material with good sliding properties, for example Glycodur.
  • the shape of the inner circumference of the Recess can, for example, at least approximately a circle his.
  • the inner circumference of the recess can also be used have a shape deviating from the circular shape.
  • the Inner circumference of the recess 36 can also be with a Coating made of wear-resistant material or of material be provided with favorable sliding properties.
  • the one Pump rotor 22 facing surface of the support plate 32 and / or the base plate 40 can also be coated from wear-resistant material or from material with favorable sliding properties.
  • the pump chamber 30 limited by a base plate 40 which on its the Pump chamber 30 delimiting side at least approximately has a flat surface.
  • the base plate 40 forms preferably an end cover for the cover 16 opposite end of the housing 14.
  • In the base plate 40 is a part of the circumference of the base plate 40 extending kidney-shaped suction opening formed, by the fuel in the rotating pump rotor 22 in the Pump chamber 30 is sucked.
  • In the support plate 32 is one extends over part of the circumference of the support plate 32 extending kidney-shaped pressure opening 33 is formed, through which fuel delivered by the pump part 12 emerges and after flowing through the drive motor 10 through the Exhaust port 20 exits.
  • the suction opening 42 and the Pressure opening 33 are offset from one another in the circumferential direction arranged.
  • the pump rotor 22 runs eccentrically in the recess 36 of the intermediate plate 34.
  • the displacement elements 28 are thereby on the acting centrifugal force pushed outward so that it the inner circumference of the recess 36 forming a runway the intermediate plate 34 are pressed and as a result of Roll the rotation of the pump rotor 22 on it.
  • there arise between the peripheral surface of the pump rotor 22 and the inner circumference of the recess 36 sickle-shaped Pump work rooms by the individual Displacement elements 28 are delimited from one another and whose volume changes during the rotation of the pump rotor 22 from the suction opening 42 in the direction of rotation Pressure opening 33 reduced.
  • the base plate 40 comes with the intermediate plate 34 facing side on the intermediate plate 34 to the system.
  • the Depth of the pump chamber 30 in the axial direction is thus determined by the thickness of the intermediate plate 34.
  • the one from the Support plate 32 and the intermediate plate 34 existing Unit comes in the housing 14 in the axial direction Drive motor 10 against a stop 44 to the system.
  • the Stop 44 can be used, for example, as an annular shoulder be carried out by a reduction in cross section in Housing 14 is formed. Alternatively, the stop 44 also by a support part inserted into the housing 14 be educated.
  • the pump rotor 22 can be connected directly to the armature shaft 11 be connected or via a driver 46.
  • the Base plate 40 can form a depression 48 be in which the driver 46 is arranged.
  • the driver 46 is rotatably connected to the armature shaft 11 and reaches into the pump rotor with at least one finger 47 22 a, with a compensation of tolerances between the Pump rotor 22 and the driver 46 in the radial direction Axis of rotation 24 is made possible.
  • In the recess 48 can also be a thrust washer 49 on which the Armature shaft 11 is supported in the axial direction.
  • the housing 14 can for example be made of Sheet metal exist, a to attach the base plate 40 beyond this projecting edge 15 of the housing 14 radially is flanged inwards. The from the support plate 32 and the intermediate plate 34 existing unit and Base plate 40 are then between the stop 44 and the flanged edge 15 of the housing 14 attached.
  • the assembly of support plate 32 and intermediate plate 34 can For example, be made of plastic, the Recess 36 is made by turning or milling. Alternatively, this unit can also consist of metal, For example aluminum, which is anodized or with a Surface treatment process can be treated for example with nickel or a nickel compound can be coated. This unit can, for example can also be made from ceramics.
  • the base plate 40 can be made from the same material. As before a slide ring can be specified above in the recess 36 38 be used. It can be provided that the Support plate 32 or the base plate 40 a hole 31 surrounding bush 35 protrudes in one piece, on which the Pump rotor 22 is rotatably mounted.
  • the socket 35 can also as a separate part in the support plate 32 or Base plate 40 pressed in.
  • the pump rotor 22 is there with the armature shaft 11 of the drive motor 10 via the Driver 46 only rotationally connected, during this Storage on the socket 35 is carried out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP02005003A 2001-03-30 2002-03-06 Aggregat zum Fördern von Kraftstoff Withdrawn EP1245821A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10115866A DE10115866A1 (de) 2001-03-30 2001-03-30 Aggregat zum Fördern von Kraftstoff
DE10115866 2001-03-30

Publications (1)

Publication Number Publication Date
EP1245821A1 true EP1245821A1 (de) 2002-10-02

Family

ID=7679736

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02005003A Withdrawn EP1245821A1 (de) 2001-03-30 2002-03-06 Aggregat zum Fördern von Kraftstoff

Country Status (5)

Country Link
EP (1) EP1245821A1 (cs)
CZ (1) CZ20021058A3 (cs)
DE (1) DE10115866A1 (cs)
HU (1) HUP0201096A2 (cs)
PL (1) PL352981A1 (cs)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2934333A1 (fr) * 2008-07-22 2010-01-29 Linde Material Handling Gmbh Groupe hydraulique pour une unite de pompe electrique
WO2010092033A1 (de) * 2009-02-13 2010-08-19 Continental Automotive Gmbh Kraftstoffpumpe und verfahren zur fertigung einer kraftstoffpumpe
WO2015183980A1 (en) * 2014-05-30 2015-12-03 Eaton Corporation Integrated pressure plate and port plate for pump

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10327321A1 (de) 2003-06-16 2005-01-13 Siemens Ag Als G-Rotorpumpe ausgebildete Verdrängerpumpe
DE102004012122A1 (de) 2004-03-12 2005-09-29 Robert Bosch Gmbh Förderaggregat
DE102007011792A1 (de) 2006-10-02 2008-04-03 Robert Bosch Gmbh Förderaggregat
DE102007019283A1 (de) 2007-04-24 2008-11-06 Robert Bosch Gmbh Förderaggregat
DE102010041990A1 (de) 2010-10-05 2012-04-05 Robert Bosch Gmbh Aggregat zum Fördern von Kraftstoff
JP2016211521A (ja) 2015-05-13 2016-12-15 愛三工業株式会社 ポンプカバー及びポンプカバーを備えるポンプ

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3072067A (en) * 1959-12-22 1963-01-08 Eaton Mfg Co Rotary pump
US3119345A (en) * 1962-05-24 1964-01-28 Hypro Engineering Inc End ported roller pump
US3542498A (en) * 1968-09-23 1970-11-24 Hypro Inc Roller pump
US4958984A (en) * 1988-05-25 1990-09-25 Honda Giken Kogyo Kabushiki Kaisha Fuel pump having improved shaft/impeller coupling
US5378111A (en) * 1993-06-21 1995-01-03 General Motors Corporation Motor vehicle fuel pump assembly with pressure relief orifice
DE4437377A1 (de) * 1994-10-19 1996-04-25 Bosch Gmbh Robert Aggregat zum Fördern von Kraftstoff aus einem Vorratstank zu einer Brennkraftmaschine
US6099261A (en) * 1998-06-08 2000-08-08 Worden; Gary Roller vane stage for a fuel pump

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3072067A (en) * 1959-12-22 1963-01-08 Eaton Mfg Co Rotary pump
US3119345A (en) * 1962-05-24 1964-01-28 Hypro Engineering Inc End ported roller pump
US3542498A (en) * 1968-09-23 1970-11-24 Hypro Inc Roller pump
US4958984A (en) * 1988-05-25 1990-09-25 Honda Giken Kogyo Kabushiki Kaisha Fuel pump having improved shaft/impeller coupling
US5378111A (en) * 1993-06-21 1995-01-03 General Motors Corporation Motor vehicle fuel pump assembly with pressure relief orifice
DE4437377A1 (de) * 1994-10-19 1996-04-25 Bosch Gmbh Robert Aggregat zum Fördern von Kraftstoff aus einem Vorratstank zu einer Brennkraftmaschine
US6099261A (en) * 1998-06-08 2000-08-08 Worden; Gary Roller vane stage for a fuel pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2934333A1 (fr) * 2008-07-22 2010-01-29 Linde Material Handling Gmbh Groupe hydraulique pour une unite de pompe electrique
WO2010092033A1 (de) * 2009-02-13 2010-08-19 Continental Automotive Gmbh Kraftstoffpumpe und verfahren zur fertigung einer kraftstoffpumpe
WO2015183980A1 (en) * 2014-05-30 2015-12-03 Eaton Corporation Integrated pressure plate and port plate for pump
US10422335B2 (en) 2014-05-30 2019-09-24 Eaton Intelligent Power Limited Integrated pressure plate and port plate for pump

Also Published As

Publication number Publication date
PL352981A1 (en) 2002-10-07
HUP0201096A2 (hu) 2002-12-28
CZ20021058A3 (cs) 2002-11-13
DE10115866A1 (de) 2002-10-10

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