EP2252795A2 - Pompe à carburant - Google Patents

Pompe à carburant

Info

Publication number
EP2252795A2
EP2252795A2 EP09723140A EP09723140A EP2252795A2 EP 2252795 A2 EP2252795 A2 EP 2252795A2 EP 09723140 A EP09723140 A EP 09723140A EP 09723140 A EP09723140 A EP 09723140A EP 2252795 A2 EP2252795 A2 EP 2252795A2
Authority
EP
European Patent Office
Prior art keywords
housing part
fuel pump
pump according
gear
housing
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
EP09723140A
Other languages
German (de)
English (en)
Other versions
EP2252795B1 (fr
Inventor
Johann Warga
Friedrich Boecking
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 EP2252795A2 publication Critical patent/EP2252795A2/fr
Application granted granted Critical
Publication of EP2252795B1 publication Critical patent/EP2252795B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
    • 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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • 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
    • F04C2230/20—Manufacture essentially without removing material

Definitions

  • the invention relates to a fuel pump, in particular an external gear pump for fuel injection systems. Specifically, the invention relates to the field of fuel injection systems of air compressing, self-igniting internal combustion engines.
  • the fuel pump according to the invention with the features of claim 1 has the Advantage that a cost-effective production of a housing of the fuel pump is made possible.
  • the fuel pump on one or more housing parts.
  • the fuel pump may also have a base body which is closed by a housing part.
  • the housing part can then form a cover of the housing of the fuel pump. Due to the configuration of the housing part of a deep-drawn sheet metal, a cost-effective production of the housing part is possible.
  • one or more receptacles may be provided on the housing part in order to receive one or more gears and optionally further elements, in particular a coupling.
  • a gear and another gear may be provided, which are mounted on a receptacle and a further receptacle, which are formed on the housing part, and engage with each other, so that they are in operative connection with each other to form a gear pump.
  • the deep-drawn sheet metal is formed from a steel sheet which is coated with a coating.
  • a coating may for example consist of nickel.
  • FIG. 2 shows a partial section through the fuel pump of the first exemplary embodiment shown in FIG. 1 along the section line designated by II;
  • FIG. 2 shows a partial section through the fuel pump of the first exemplary embodiment shown in FIG. 1 along the section line designated by II;
  • FIG. 5 shows the detail of a fuel pump according to a fourth embodiment of the invention shown in FIG. 3;
  • FIG. 5 shows the detail of a fuel pump according to a fourth embodiment of the invention shown in FIG. 3;
  • FIG. 6 shows the section of a fuel pump according to a fifth exemplary embodiment of the invention, indicated by VI in FIG. 2;
  • FIG. 6 shows the section of a fuel pump according to a fifth exemplary embodiment of the invention, indicated by VI in FIG. 2;
  • the fuel pump 1 also has an intake 5, via which a supply of fuel into the fuel pump 1 takes place. Further, a bore 6 is provided in the housing part 3 of the housing 2, which leads away from a lying in the interior of the housing 2 pressure chamber of a gear pump of the fuel pump 1.
  • the fuel pump 1 of the first embodiment is described below in further detail with reference to FIG. 2.
  • the receptacles 10, 11 designed as a bearing pin.
  • the design can be achieved at least essentially by deep drawing.
  • the bearing pin that is, the receptacles 10, 11, to the bearing surfaces 12, 13, an advantageous storage of the gears 7, 8 can be achieved.
  • the receptacles 10, 11, which are designed as bearing pins also serve for the indirect storage of the gears 7, 8, as described with reference to FIG. 6 in further detail.
  • Fig. 3 shows the designated in Fig. 2 with III section of a fuel pump 1 according to a second embodiment of the invention.
  • the punched fixing hole 14 is reinforced with a sleeve-shaped eye 16 ', which is fixed, for example by welding on the outside 17 of the housing part 3.
  • the housing part 3 of the housing 2 is surrounded by a Kunststoffvergussmasse 25, which may also extend over the further housing part 4, so that the housing 2 is at least substantially cast in plastic.
  • Fig. 5 shows the detail shown in Fig. 3 according to a fourth embodiment of the invention.
  • a bead 35 is formed by deep drawing, which extends in the illustrated section through a region 36 between the fixing hole 14 and the receptacle 10 (Fig. 2).
  • a possible course of the bead 35 is also illustrated in FIG. 1.
  • the bead 35 can while doing the receptacles 10, 11 once closed.
  • the housing part 3 may abut on its inner side 19 on the further housing part 4, which is shown in Fig. 5 in part.
  • a sealing ring 37 is provided between the housing part 3 and the further housing part 4, a sealing ring 37 is provided.
  • the sealing ring 37 is inserted into the bead 35, wherein the sealing ring 37 initially projects beyond the inside 19 of the housing part 3.
  • the sealing ring 37 is pressed together, so that a tight connection between the housing parts 3, 4 with respect to the space in which the gear 7 is arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne une pompe à carburant (1) réalisée de préférence sous la forme d'une pompe à engrenages extérieurs pour des systèmes d'injection de carburant de moteurs à combustion interne à autoallumage par compression. La pompe à carburant (1) comprend un élément de corps (3), au niveau duquel sont placées des roues dentées (7, 8). L'élément (3) du corps est réalisé à partir d'une tôle métallique emboutie profond, des évidements (10, 11), sur lesquels les roues dentées (7, 8) sont montées, étant ménagés sur ledit élément (3).
EP09723140.1A 2008-03-17 2009-01-22 Pompe à carburant Not-in-force EP2252795B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810000701 DE102008000701A1 (de) 2008-03-17 2008-03-17 Brennstoffpumpe
PCT/EP2009/050685 WO2009115355A2 (fr) 2008-03-17 2009-01-22 Pompe à carburant

Publications (2)

Publication Number Publication Date
EP2252795A2 true EP2252795A2 (fr) 2010-11-24
EP2252795B1 EP2252795B1 (fr) 2016-07-13

Family

ID=40977248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09723140.1A Not-in-force EP2252795B1 (fr) 2008-03-17 2009-01-22 Pompe à carburant

Country Status (3)

Country Link
EP (1) EP2252795B1 (fr)
DE (1) DE102008000701A1 (fr)
WO (1) WO2009115355A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1022681B1 (nl) * 2015-01-14 2016-07-14 Atlas Copco Airpower N.V. Behuizing voor een compressor- of expanderinstallatie, vacuümpomp, generator of dergelijke
DE102016225883A1 (de) * 2016-12-21 2018-06-21 Robert Bosch Gmbh Zahnradpumpe für ein Abwärmerückgewinnungssystem
DE102017203004A1 (de) * 2017-02-24 2018-08-30 Robert Bosch Gmbh Zahnradpumpe für ein Abwärmerückgewinnungssystem
DE102023105779A1 (de) * 2023-03-08 2024-09-12 Valeo Embrayages Zahnradpumpe

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759426A (en) * 1955-11-17 1956-08-21 Tuxco Corp Rotary pump
US4366779A (en) * 1978-01-16 1983-01-04 Knecht John E Wind driven heating system
EP0159968A3 (fr) * 1984-04-24 1987-05-13 CORINT S.r.l. Pompe pneumatique à palettes avec carter en tôle métallique estampée
DE19736160A1 (de) 1997-08-20 1999-02-25 Bosch Gmbh Robert Pumpenanordnung zur Kraftstoffhochdruckversorgung bei Kraftstoffeinspritzsystemen von Brennkraftmaschinen
DE10341841A1 (de) * 2003-09-09 2005-04-07 Siemens Ag Nach dem Gerotorprinzip arbeitende Kraftstoffpumpe
US7220111B2 (en) * 2004-08-02 2007-05-22 Production Research, Llc Hydraulic pump
US20070098586A1 (en) * 2005-10-28 2007-05-03 Autotronic Controls Corporation Fuel pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009115355A3 *

Also Published As

Publication number Publication date
WO2009115355A2 (fr) 2009-09-24
WO2009115355A3 (fr) 2009-11-19
EP2252795B1 (fr) 2016-07-13
DE102008000701A1 (de) 2009-09-24

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