EP1193395A2 - Innenzahnradpumpe - Google Patents
Innenzahnradpumpe Download PDFInfo
- Publication number
- EP1193395A2 EP1193395A2 EP01120451A EP01120451A EP1193395A2 EP 1193395 A2 EP1193395 A2 EP 1193395A2 EP 01120451 A EP01120451 A EP 01120451A EP 01120451 A EP01120451 A EP 01120451A EP 1193395 A2 EP1193395 A2 EP 1193395A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- axis
- housing
- ring
- rotation
- gear pump
- 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
Links
Images
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
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
- F01C21/102—Adjustment of the interstices between moving and fixed parts of the machine by means other than fluid pressure
-
- 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
- F04C2230/60—Assembly methods
- F04C2230/602—Gap; Clearance
Definitions
- the invention relates to an internal gear pump according to the Genus of claim 1.
- Such an internal gear pump is described in DE 28 08 731 C2 known.
- This internal gear pump has a housing in which has a toothed ring with internal teeth a bearing ring is rotatably supported about an axis. It is also one with external teeth, with the Toothed ring-meshing pinion provided around an axis is rotatably mounted.
- the axis of rotation of the pinion is Offset axis of the toothed ring.
- the ring gear or that Pinion is driven in rotation. Between the Pinion and the gear ring is in the radial direction with respect to the axes of rotation of the pinion and the toothed ring considered some play required to get a pinch to avoid.
- the internal gear pump according to the invention with the features according to claim 1 has the advantage that the Adjustment device an adjustment of the radial play between the toothed ring and the pinion. This enables the production of the internal gear pump with larger tolerances and thus lower costs.
- FIG. 1 shows an internal gear pump in one Cross section along line I-I in Figure 2 and Figure 2 die Internal gear pump in a cross section along line II-II in Figure 1.
- An internal gear pump shown in Figures 1 and 2 is preferably used to deliver fuel from a Reservoir to a high pressure fuel pump or Fuel injection pump of a fuel injection system an internal combustion engine.
- the internal combustion engine is preferably a self-igniting internal combustion engine and the fuel delivered by the internal gear pump Diesel fuel.
- the internal gear pump has one for example two-part housing with a housing part 10 and one connected to it by means of screws 12 Lid part 14 on.
- the housing part 10 and the cover part 14 can for example be made of metal, such as steel or aluminum exist and be designed as a casting.
- the housing part 10 has on its side facing the cover part 14 Indentation 16, which is at least approximately in cross section is circular.
- the cover part 14 From the bottom of the recess 16 is at least approximately in one piece on the housing part 10 centrally a pin 18 from.
- the cover part 14 has on it the side facing the housing part 10 also a Well 20, which is at least approximately congruent arranged with the recess 16 of the housing part 10 and is trained. Through the housing part 10 and the cover part 14 is a with the recesses 16 and 20 in the housing Chamber limited.
- the cover part 14 has a pin 18 of the housing part 10 on coaxial opening 22. Through the Opening 22 of cover part 14 projects from a drive shaft 24 outside into the housing, with its end area in a bore 26 is mounted in the pin 18.
- a pinion 30 is on the pin 18 of the housing part 10 rotatably supported about an axis 32, which with a External toothing is provided.
- the pinion 30 is over at least one coupling element 34 rotatably with the Drive shaft 24 connected.
- the pinion 30 is surrounding a toothed ring 36 arranged with an internal toothing is provided with the external toothing of the pinion 30th combs.
- the external toothing of the pinion 30 has one Tooth less than the internal toothing of the toothed ring 36.
- the toothed ring 36 has one on its outer circumference circular cross-section and is above this in one Bore 38 of a bearing ring 40 surrounding the toothed ring 36 an axis 42 rotatably mounted.
- the axis of rotation 42 of the Toothed ring 36 runs parallel to the axis of rotation 32 of the Tooth pinion 30, however, is at a distance a added.
- the bore 38 is eccentric in the bearing ring 40 whose circular outer cross section is formed.
- the Pinion 30 and the toothed ring 36 are in the recesses 16.20 between the housing part 10 and the cover part 14 in Direction of their axis of rotation 32 or 42 with little play arranged.
- the pinion 30, the toothed ring 36 and the Bearing ring 40 are preferably made of steel, for example Sintered steel.
- the bearing ring 40 faces the recesses 16 and 20 the housing part 10 and the cover part 14 a little smaller cross section.
- the bearing ring 40 has in its Outer jacket two axially offset annular grooves 44 on, in each of which an elastic ring 46 is inserted.
- the bearing ring 40 is supported on the rings 46, which over the Project outer shell of the bearing ring 40 to which Inner lateral surfaces of the recesses 16 and 20.
- the Rings 46 are between the outer shell of the bearing ring 40 and the Clamped inside the recesses 16, 20.
- the Pinion 30 is about the axis 32 via the drive shaft 24 driven in rotation. Through the meshing of the Toothed pinion 30 with the toothed ring 36 is also around its axis 42 driven in rotation.
- the Suction side 48 is from the pressure side 49 through the mutually sliding toothing of the pinion 30 and of the toothed ring 36 separately. It is therefore necessary that between the teeth of the pinion 30 and the Toothed ring 36 the smallest possible radial play b is present and the axis of rotation 32 of the pinion 30 and the axis of rotation 42 of the toothed ring 36 in the radial direction the axes of rotation 32, 42 are exactly aligned with one another.
- the bearing ring 40 is one Adjustment device 50 assigned by means of the bearing ring 40 and thus the toothed ring 36 mounted in this in one radial direction with respect to the axes of rotation 32,42 Movable adjustment and in a set position can be blocked.
- the direction in which the bearing ring 40 is movable by means of the adjusting device is in Figure 2 illustrated with the double arrow 52.
- the direction of adjustment 52 is both to the axis of rotation 42 of the toothed ring 36 and Axis of rotation 32 of the pinion 30 radially.
- the Adjustment device 50 is on the axis of rotation 42 of the Toothed ring 36 opposite side of the axis of rotation 32 of the Pinion 30 arranged.
- the adjusting device 50 has a bearing ring 40 firmly connected adjusting element 54.
- the adjustment element 54 is, for example, with one protruding therefrom Bolt 56 in a bore 58 in the outer jacket of the bearing ring 40 screwed in between the two ring grooves 44 or pressed.
- the adjusting element 54 has one with the Bolt 56 preferably one-piece slide-shaped Section 60 on.
- the depth of the grooves 62 in the direction of the axes of rotation 32.42 is less than the depth of the Wells 16.20.
- the grooves 62 point out from the Edges of the depressions 16, 20 initially have an area 62a with a small width and then an area 62b larger width.
- the slide section 60 of the adjusting element 54 is slidable between the grooves 62 in their regions 62b guided.
- the width of the slide section 60 is only a little smaller than the width of the areas 62b of the grooves 62 so that the slide section 60 is guided with little play.
- In the adjustment direction 52 is the length of the areas 62b of FIG Grooves 62 greater than the length of the slide section 60, so that this in the adjustment direction 52 in the areas 62b can be moved.
- the areas 62b of the grooves 62 and the slider section 60 of the adjusting element 54 can Cross section as shown in Figure 2, for example be rectangular, the corners rounded are.
- the bolt 56 of the adjusting element 54 passes through the Areas 62a of the grooves 62 therethrough.
- the adjusting element 54 has in its slide section 60 a recess 64, for example in the form of an opening or a hole.
- the recess 64 extends in Direction of the axes of rotation 32.42.
- Engages in the recess 64 a fixing element 66 which, for example, as an in a threaded bore 68 screwed into the housing part 10 Set screw is formed.
- the set screw 66 extends up to on the outside of the housing part 10 and is there accessible so that on this by means of a tool attacked and this can be twisted.
- the Set screw 66 can be removed from the housing part 10 projecting end, for example, a cross or cross slot have a corresponding blade of a Screwdriver can be inserted.
- Twist is the set screw 66 as a result of Threaded connection with the housing part 10 in the direction of Longitudinal axis 67 moves.
- the set screw 66 can have a self-locking thread to ensure that not inadvertently, for example as a result of occurring during the operation of the internal gear pump Shocks, which can distort an adjustment of the radial play would result.
- the Set screw 66 also by means of one on the Screwed housing part 10 projecting end area Lock nut to be secured against twisting.
- the recess 64 has a radial direction to the Axes of rotation 32, 42 facing side surface 70 on which the adjusting screw 66 with its into the recess 64 engaging end area.
- the side surface 70 of the Recess 64 is to the longitudinal axis 67 of the adjusting screw 66 arranged so inclined that the side surface 70 to Cover part 14 approaches the longitudinal axis 67.
- the Recess 64 of the adjusting element 54 can, for example as an at least approximately conical bore be formed, whereby the inclined arrangement of the Side surface 70 is reached. It can also be provided that only the side surface 70 of the recess 64 through appropriate processing by means of a grinding or Milling tool is arranged inclined.
- the side surface 70 the recess 64 can also be designed as an inclined plane his.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
Description
Claims (8)
- Innenzahnradpumpe mit einem Gehäuse (10,14), mit einem mit einer Innenverzahnung versehenen Zahnring (36), der im Gehäuse (10,14) über einen Lagerring (40) um eine Achse (42) drehbar gelagert ist, und mit einem mit dem Zahnring (36) kämmenden, mit einer Außenverzahnung versehenen Zahnrad (30), das im Gehäuse (10,14) um eine Achse (32) drehbar gelagert ist, wobei das Zahnrad (30) oder der Zahnring (36) rotierend angetrieben wird und die Drehachse (42) des Zahnrings (36) zu der Drehachse (32) des Zahnrads (30) versetzt verläuft, dadurch gekennzeichnet, daß dem Lagerring (40) eine Verstellvorrichtung (50) zugeordnet ist, mittels der der Lagerring (40) in einer radialen Richtung (52) bezüglich der Drehachse (42) des Zahnrings (36) im Gehäuse (10,14) zu einer Verstellung bewegbar und in einer eingestellten Lage blockierbar ist.
- Innenzahnradpumpe nach Anspruch 1, dadurch gekennzeichnet, daß die Verstellvorrichtung (50) ein mit dem Lagerring (40) verbundenes, im Gehäuse (10,14) in radialer Richtung (52) verschiebbar geführtes Verstellelement (54) aufweist, an dem ein mit dem Gehäuse (10) verbundenes, von der Außenseite des Gehäuses (10) zugängliches Fixierelement (66) angreift, mittels dem das Verstellelement (54) in radialer Richtung (52) verschiebbar und in der eingestellten Lage blockierbar ist.
- Innenzahnradpumpe nach Anspruch 2, dadurch gekennzeichnet, daß das Verstellelement (54) eine Ausnehmung (64) aufweist, in die das Fixierelement (66) quer zu der radialen Richtung (52) eingreift, daß das Fixierelement (66) an einer radial zur Drehachse (42) des Zahnrings (36) hin oder von dieser wegweisenden Seitenfläche (70) der Ausnehmung (64) anliegt, daß das Fixierelement (66) mit dem Gehäuse (10) in Richtung seiner Längsachse (67) bewegbar verbunden ist und daß die Seitenfläche (70) der Ausnehmung (64) zur Längsachse (67) des Fixierelements (66) geneigt verläuft, so daß bei der Bewegung des Fixierelements (66) in Richtung seiner Längsachse (67) über die geneigte Seitenfläche (70) der Ausnehmung (64) eine Bewegung des Verstellements (54) in der radialen Richtung (52) bewirkt wird.
- Innenzahnradpumpe nach Anspruch 3, dadurch gekennzeichnet, daß die Ausnehmung (64) des Verstellelements (54) zumindest annähernd kegelförmig ausgebildet ist.
- Innenzahnradpumpe nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß das Fixierelement (66) als eine in eine Gewindebohrung (68) des Gehäuses (10) eingeschraubte Stellschraube ausgebildet ist, die bei einer Drehbewegung eine Stellbewegung in Richtung ihrer Längsachse (67) ausführt.
- Innenzahnradpumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Lagerring (40) über wenigstens einen zwischen seinem Außenmantel und dem Gehäuse (10,14) eingespannten elastischen Ring (46) gelagert ist, der eine der durch die Verstellvorrichtung (50) auf den Lagerring (40) erzeugten Verstellkraft entgegen wirkende Rückstellkraft auf den Lagerring (40) erzeugt.
- Innenzahnradpumpe nach Anspruch 6, dadurch gekennzeichnet, daß der wenigstens eine Ring (46) als Dichtelement zur Abdichtung des Gehäuses (10,14) dient.
- Innenzahnradpumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Richtung (52), in der der Lagerring (40) mittels der Verstellvorrichtung (50) bewegbar ist sowohl zur Drehachse (42) des Zahnrings (36) als auch zur Drehachse (32) des Zahnrads (30) radial ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10047738 | 2000-09-27 | ||
DE10047738A DE10047738A1 (de) | 2000-09-27 | 2000-09-27 | Innenzahnradpumpe |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1193395A2 true EP1193395A2 (de) | 2002-04-03 |
EP1193395A3 EP1193395A3 (de) | 2003-05-07 |
EP1193395B1 EP1193395B1 (de) | 2004-11-03 |
Family
ID=7657741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01120451A Expired - Lifetime EP1193395B1 (de) | 2000-09-27 | 2001-08-28 | Innenzahnradpumpe |
Country Status (4)
Country | Link |
---|---|
US (1) | US6568930B2 (de) |
EP (1) | EP1193395B1 (de) |
JP (1) | JP4843168B2 (de) |
DE (2) | DE10047738A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007093592A1 (de) * | 2006-02-15 | 2007-08-23 | Continental Automotive Gmbh | Rotationspumpe und verfahren zur herstellung eines pumpengehäuses einer rotationspumpe |
EP2078860A3 (de) * | 2008-01-10 | 2014-05-28 | Robert Bosch GmbH | Förderaggregat |
WO2016096754A1 (de) * | 2014-12-17 | 2016-06-23 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Ölpumpe und verfahren zu deren herstellung |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10109769A1 (de) * | 2001-03-01 | 2002-09-05 | Eckerle Ind Elektronik Gmbh | Füllstücklose Innenzahnradpumpe |
DE10240287A1 (de) * | 2002-08-31 | 2004-03-11 | Continental Teves Ag & Co. Ohg | Pumpen-Aggregat |
WO2005080755A1 (en) * | 2004-01-30 | 2005-09-01 | Performance Pumps, Llc. | Improved gerotor pumps |
DE102004020357A1 (de) * | 2004-04-26 | 2005-11-17 | Sauer-Danfoss Aps | Verfahren und Hydromaschine zum Steuern einer Verdrängung |
WO2005119066A2 (en) * | 2004-06-04 | 2005-12-15 | Entek Manufacturing Inc. | Gear for use in a gear pump |
DE102004036106A1 (de) | 2004-07-24 | 2006-03-16 | Ina-Schaeffler Kg | Periodisch beaufschlagbarer Stößel für einen Ventil- oder Pumpentrieb |
KR100662806B1 (ko) | 2005-09-30 | 2006-12-28 | 현담산업 주식회사 | 자동차용 전동기식 연료펌프 |
WO2007120503A2 (en) * | 2006-03-31 | 2007-10-25 | Metaldyne Company, Llc | Variable displacement gerotor pump |
JP4966638B2 (ja) * | 2006-12-18 | 2012-07-04 | 日立オートモティブシステムズ株式会社 | オイルポンプ及びオイルポンプの組立方法 |
DE102015213387A1 (de) * | 2015-07-16 | 2017-01-19 | Robert Bosch Gmbh | Rotationskolbenpumpe |
JP6430557B2 (ja) * | 2017-03-02 | 2018-11-28 | 日本電産トーソク株式会社 | 電動オイルポンプ |
DE102019002949B4 (de) * | 2019-04-24 | 2021-02-25 | Bastian Voigt | Innenzahnradpumpe |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2808731C2 (de) | 1978-03-01 | 1987-09-17 | Robert Bosch Gmbh, 7000 Stuttgart, De |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2792788A (en) * | 1957-05-21 | eames | ||
US1505707A (en) * | 1923-10-24 | 1924-08-19 | Hill Compressor & Pump Company | Rotary pump |
US2822124A (en) * | 1956-02-07 | 1958-02-04 | Allied Prod Corp | Gear type fluid pump with adjustable gear sets |
JPS4329251Y1 (de) * | 1965-06-30 | 1968-12-02 | ||
GB1233376A (de) * | 1967-11-17 | 1971-05-26 | ||
DE2705256A1 (de) * | 1977-02-09 | 1978-08-10 | Bosch Gmbh Robert | Zahnradmaschine (pumpe oder motor) |
JPS63223381A (ja) * | 1987-03-11 | 1988-09-16 | Mitsubishi Metal Corp | 内接型ギヤポンプ |
JPH0633776B2 (ja) * | 1987-11-09 | 1994-05-02 | 株式会社ユニシアジェックス | 歯車式ポンプ |
DE19517296C2 (de) * | 1995-05-11 | 2000-08-03 | Otto Eckerle | Füllstücklose Innenzahnradpumpe |
-
2000
- 2000-09-27 DE DE10047738A patent/DE10047738A1/de not_active Withdrawn
-
2001
- 2001-08-28 DE DE50104369T patent/DE50104369D1/de not_active Expired - Lifetime
- 2001-08-28 EP EP01120451A patent/EP1193395B1/de not_active Expired - Lifetime
- 2001-09-25 JP JP2001290607A patent/JP4843168B2/ja not_active Expired - Fee Related
- 2001-09-27 US US09/965,066 patent/US6568930B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2808731C2 (de) | 1978-03-01 | 1987-09-17 | Robert Bosch Gmbh, 7000 Stuttgart, De |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007093592A1 (de) * | 2006-02-15 | 2007-08-23 | Continental Automotive Gmbh | Rotationspumpe und verfahren zur herstellung eines pumpengehäuses einer rotationspumpe |
EP2078860A3 (de) * | 2008-01-10 | 2014-05-28 | Robert Bosch GmbH | Förderaggregat |
WO2016096754A1 (de) * | 2014-12-17 | 2016-06-23 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Ölpumpe und verfahren zu deren herstellung |
Also Published As
Publication number | Publication date |
---|---|
JP2002155872A (ja) | 2002-05-31 |
DE50104369D1 (de) | 2004-12-09 |
US20020110468A1 (en) | 2002-08-15 |
EP1193395B1 (de) | 2004-11-03 |
JP4843168B2 (ja) | 2011-12-21 |
EP1193395A3 (de) | 2003-05-07 |
US6568930B2 (en) | 2003-05-27 |
DE10047738A1 (de) | 2002-04-11 |
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