EP2249039A3 - External gear pump with improved bearing lubrication - Google Patents

External gear pump with improved bearing lubrication Download PDF

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Publication number
EP2249039A3
EP2249039A3 EP10161304A EP10161304A EP2249039A3 EP 2249039 A3 EP2249039 A3 EP 2249039A3 EP 10161304 A EP10161304 A EP 10161304A EP 10161304 A EP10161304 A EP 10161304A EP 2249039 A3 EP2249039 A3 EP 2249039A3
Authority
EP
European Patent Office
Prior art keywords
bearing
chamber
gear pump
external gear
lubricant
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Withdrawn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
EP10161304A
Other languages
German (de)
French (fr)
Other versions
EP2249039A2 (en
Inventor
Hilmar Gärtner Dr.
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.)
Schwaebische Huettenwerke Automotive GmbH
Original Assignee
Schwaebische Huettenwerke Automotive 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 Schwaebische Huettenwerke Automotive GmbH filed Critical Schwaebische Huettenwerke Automotive GmbH
Publication of EP2249039A2 publication Critical patent/EP2249039A2/en
Publication of EP2249039A3 publication Critical patent/EP2249039A3/en
Withdrawn legal-status Critical Current

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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0088—Lubrication
    • 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/185—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by varying the useful pumping length of the cooperating members in the axial direction
    • 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
    • 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
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • F04C2240/52—Bearings for assemblies with supports on both sides
    • 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
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • F04C2240/56—Bearing bushings or details thereof
    • 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
    • F04C2240/00—Components
    • F04C2240/60—Shafts
    • F04C2240/603—Shafts with internal channels for fluid distribution, e.g. hollow shaft

Abstract

Umlaufverdrängerpumpe, umfassend:
h) ein Gehäuse (3) mit einer Kammer, die einen Einlass (4) und einen Auslass (5) für ein Fluid aufweist,
i) eine Lagerstruktur (8),
j) ein in der Kammer aufgenommenes Förderrad (2), das zur Förderung des Fluids um eine Drehachse (R2) relativ zu der Lagerstrulktur (8) drehbar gelagert ist,
k) ein von der Lagerstruktur (8) abgestütztes Lagerprofil (10), das um die Drehachse (R2) eine Lagerfläche (10a) für die Drehlagerung des Förderrads (2) aufweist,
l) wobei das Förderrad (2) oder die Lagerstruktur um die Drehachse eine Lagergegenfläche (2a) bildet und eines aus Lagerfläche (10a) und Lagergegenfläche (2a) das andere umgibt,
m) und einen Schmiermittelkanal (7, 8a, 10b, 10e) für eine Zuführung des als Schmiermittel dienenden Fluids in einen von der Lagerfläche (10a) und der Lagergegenfläche (2a) begrenzten Lagerspalt,
dadurch gekennzeichnet, dass
n) sich der Sehmiermittelkanal (7, 8a, 10b, 10c) von außerhalb der Kammer in den Lagerspalt erstreckt.

Figure imgaf001
Rotary displacement pump, comprising:
h) a housing (3) having a chamber having an inlet (4) and an outlet (5) for a fluid,
i) a bearing structure (8),
j) a conveyor wheel (2) received in the chamber and rotatably mounted for conveying the fluid about an axis of rotation (R 2 ) relative to the bearing structure (8),
k) a bearing profile (10) which is supported by the bearing structure (8) and has a bearing surface (10a) about the rotational axis (R 2 ) for the rotational mounting of the conveying wheel (2),
l) wherein the conveying wheel (2) or the bearing structure forms a bearing counter surface (2a) about the axis of rotation and one of bearing surface (10a) and bearing counter surface (2a) surrounds the other,
m) and a lubricant channel (7, 8a, 10b, 10e) for supplying the lubricant serving as a lubricant in a bearing of the bearing surface (10a) and the bearing surface (2a) limited bearing gap,
characterized in that
n) the Sehmiermittelkanal (7, 8a, 10b, 10c) extends from outside the chamber in the bearing gap.
Figure imgaf001
EP10161304A 2009-04-29 2010-04-28 External gear pump with improved bearing lubrication Withdrawn EP2249039A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910019418 DE102009019418B4 (en) 2009-04-29 2009-04-29 Circulating positive displacement pump with improved bearing lubrication

Publications (2)

Publication Number Publication Date
EP2249039A2 EP2249039A2 (en) 2010-11-10
EP2249039A3 true EP2249039A3 (en) 2013-01-02

Family

ID=42651061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10161304A Withdrawn EP2249039A3 (en) 2009-04-29 2010-04-28 External gear pump with improved bearing lubrication

Country Status (2)

Country Link
EP (1) EP2249039A3 (en)
DE (1) DE102009019418B4 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012209622A1 (en) * 2012-06-08 2013-12-12 Robert Bosch Gmbh Gear machine with hydrodynamic and hydrostatically mounted journal
DE102013202917A1 (en) * 2013-02-22 2014-08-28 Robert Bosch Gmbh Geared machine, particularly gear pump or gear motor, has pressure chamber, in which pressure fluid having low particle concentration is present, and channel, through which pressure chamber is connected with axial force compensating groove
DE102016107447A1 (en) 2016-04-21 2017-11-09 Schwäbische Hüttenwerke Automotive GmbH Rotary pump with lubrication groove in the sealing bar
CN110185609B (en) * 2019-06-18 2024-04-16 江苏德华泵业有限公司 High-pressure gear sewage pump

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB641176A (en) * 1946-10-30 1950-08-09 Louis Breguet Improvements in gear pumps
US2571377A (en) * 1947-05-15 1951-10-16 Prec Developments Co Ltd Rotary displacement pump
US2988009A (en) * 1956-07-23 1961-06-13 Jr Frederick Kraissl External gear pump
US3156191A (en) * 1960-12-23 1964-11-10 Clark Equipment Co Sealing means for pumps and motors
DE2005740A1 (en) * 1969-02-26 1970-09-10 Hydroperfect International, Saint-Maur (Frankre i ch) Slide bearings with hydrodynamic lubrication
US4553915A (en) * 1985-01-08 1985-11-19 Dana Corporation Low pressure lubrication system for fluid device
EP1988290A1 (en) * 2006-02-20 2008-11-05 Shimadzu Mectem, Inc. Gear pump
DE102007051779A1 (en) * 2007-07-11 2009-01-15 Audi Ag External gear pump for lubricants has two or more gearwheels with transverse bores which feed lubricant to corresponding bore in slide bearing shell
DE102007039589A1 (en) * 2007-08-22 2009-02-26 Voigt, Dieter, Dipl.-Ing. Regular oil pump with adjustment-dependent oil pressure control

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1182608A (en) * 1966-06-07 1970-02-25 Plessey Co Ltd Improvements in or relating to Rotary Pumps for Liquids Containing Solid Contaminants
DE10222131C5 (en) 2002-05-17 2011-08-11 Schwäbische Hüttenwerke Automotive GmbH & Co. KG, 73433 Positive displacement pump with delivery volume adjustment

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB641176A (en) * 1946-10-30 1950-08-09 Louis Breguet Improvements in gear pumps
US2571377A (en) * 1947-05-15 1951-10-16 Prec Developments Co Ltd Rotary displacement pump
US2988009A (en) * 1956-07-23 1961-06-13 Jr Frederick Kraissl External gear pump
US3156191A (en) * 1960-12-23 1964-11-10 Clark Equipment Co Sealing means for pumps and motors
DE2005740A1 (en) * 1969-02-26 1970-09-10 Hydroperfect International, Saint-Maur (Frankre i ch) Slide bearings with hydrodynamic lubrication
US4553915A (en) * 1985-01-08 1985-11-19 Dana Corporation Low pressure lubrication system for fluid device
EP1988290A1 (en) * 2006-02-20 2008-11-05 Shimadzu Mectem, Inc. Gear pump
DE102007051779A1 (en) * 2007-07-11 2009-01-15 Audi Ag External gear pump for lubricants has two or more gearwheels with transverse bores which feed lubricant to corresponding bore in slide bearing shell
DE102007039589A1 (en) * 2007-08-22 2009-02-26 Voigt, Dieter, Dipl.-Ing. Regular oil pump with adjustment-dependent oil pressure control

Also Published As

Publication number Publication date
DE102009019418B4 (en) 2013-05-16
DE102009019418A1 (en) 2010-11-04
EP2249039A2 (en) 2010-11-10

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