EP2406497A2 - Hydraulische zahnradmaschine - Google Patents
Hydraulische zahnradmaschineInfo
- Publication number
- EP2406497A2 EP2406497A2 EP10708110A EP10708110A EP2406497A2 EP 2406497 A2 EP2406497 A2 EP 2406497A2 EP 10708110 A EP10708110 A EP 10708110A EP 10708110 A EP10708110 A EP 10708110A EP 2406497 A2 EP2406497 A2 EP 2406497A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- gear
- bearing
- pressure
- machine according
- gear machine
- 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
- 239000012530 fluid Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- -1 M0S2 Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
-
- 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
Definitions
- a gear machine is shown with a housing in which two intermeshing and mounted in bearing bushes or bearing bodies gears are arranged, wherein the housing is closed with a first and second housing cover each end face.
- the helical gears are slidably mounted axially with two axial surfaces between the bearing bodies and radially in each case via a bearing shaft received in the bearing bodies.
- hydraulic and mechanical forces act on the gears in the same gear longitudinal axis in each case.
- the counterforce on the gears is applied via attacking on the bearing shafts piston.
- the pistons are slidably received approximately coaxially to the toothed wheel longitudinal axis in a between the first housing cover and the housing arranged intermediate cover and abut with a first piston end face on a pointing in the direction of the first housing cover shaft end face of the bearing shafts and are acted upon via a second piston end face in each case with pressure.
- the counterforce is applied to the first bearing body via a pressure field formed between the bearing body and the intermediate cover.
- This solution has the advantage that the gears of the gear machine are each pressed with a reduced by the opposing force Axialkraftkomponente lying in the direction of the Axialkraftkomponente bearing body, which reduces sliding friction between the gears and the bearing body and the other not lying in the effective direction of the Axialkraftkomponente bearing body unloaded is.
- the reduced by the opposing forces Axialkraftkomponenten can then be provided as Axialspaltkompensation a sliding gap between lying in the effective direction of the force resulting bearing body and the gears.
- An axial gap compensation of a sliding gap between the not in the effective direction of the Axialkraftkomponente lie- ing bearing body and the gears can be used independently of the Axialkraftkomponenten.
- a load due to the axial force component on the housing cover and the housing can be reduced.
- the gears of the gear machine are helically toothed.
- the first bearing body lying in the direction of the acting Axialkraftkomponente is pressed mechanically via the gears and / or hydraulically via a pressure force on a housing cover of the housing.
- a first pressure groove completely concentrically encircling a first bearing eye and a second pressure groove a pitch circle surrounding a second bearing eye introduced.
- the pressure grooves are then connected via a pressure medium connection with the high pressure of the gear machine in pressure medium connection.
- FIG. 3 shows a plan view of the axial surfaces 34, 36 of the gears 10, 12 of a further embodiment, wherein the application of the gears 10, 12 is explained below with a hydraulic counterforce.
- the helical gear 14 is clearly visible.
- a pressure pocket 50 and 52 is introduced into the axial surfaces 34 and 36 of the gears.
- the pressure pockets 50, 52 respectively bound with the first bearing body 28 of Figure 1, a pressure field which is in fluid communication with the high pressure of the gear machine 1.
- the gear machine can be used as a gear pump or motor.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Motors (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Gear Transmission (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009012853A DE102009012853A1 (de) | 2009-03-12 | 2009-03-12 | Hydraulische Zahnradmaschine |
PCT/EP2010/001163 WO2010102722A2 (de) | 2009-03-12 | 2010-02-25 | Hydraulische zahnradmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2406497A2 true EP2406497A2 (de) | 2012-01-18 |
EP2406497B1 EP2406497B1 (de) | 2017-01-11 |
Family
ID=42557916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10708110.1A Active EP2406497B1 (de) | 2009-03-12 | 2010-02-25 | Hydraulische zahnradmaschine |
Country Status (7)
Country | Link |
---|---|
US (1) | US8979518B2 (de) |
EP (1) | EP2406497B1 (de) |
JP (1) | JP5535246B2 (de) |
CN (1) | CN102348897B (de) |
BR (1) | BRPI1009517B1 (de) |
DE (1) | DE102009012853A1 (de) |
WO (1) | WO2010102722A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9366250B1 (en) | 2013-06-27 | 2016-06-14 | Sumitomo Precision Products Co., Ltd. | Hydraulic device |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010055682A1 (de) | 2010-12-22 | 2012-06-28 | Robert Bosch Gmbh | Gehäuse einer Außenzahnradmaschine und Außenzahnradmaschine |
ITTO20110912A1 (it) * | 2011-10-13 | 2013-04-14 | Vhit Spa | Pompa per vuoto rotativa |
DE102012212829A1 (de) | 2012-07-23 | 2014-01-23 | Robert Bosch Gmbh | Zahnradmaschine mit Drehzahlmessung anhand der Druckpulsation |
DE102012217115A1 (de) | 2012-09-24 | 2014-03-27 | Robert Bosch Gmbh | Zahnradmaschine mit von der Kreisform abweichendem Niederdruckanschluss |
DE102012217400A1 (de) | 2012-09-26 | 2014-03-27 | Robert Bosch Gmbh | Zahnradmaschine mit einer Nut zur Aufnahme eines Einlaufgrates |
DE102012219521A1 (de) | 2012-10-25 | 2014-04-30 | Robert Bosch Gmbh | Dichtungsanordnung mit Dichtschnur und Steg |
DE102012220446A1 (de) | 2012-11-09 | 2014-05-15 | Robert Bosch Gmbh | Zahnradmaschine mit Druckentlastung des Quetschraums |
DE102013202917A1 (de) | 2013-02-22 | 2014-08-28 | Robert Bosch Gmbh | Zahnradmaschine mit erhöhter Partikelrobustheit |
WO2014141377A1 (ja) * | 2013-03-12 | 2014-09-18 | 株式会社 島津製作所 | 歯車ポンプ又はモータ |
ITAN20130102A1 (it) * | 2013-05-30 | 2014-12-01 | Marzocchi Pompe S P A | Pompa o motore idraulico ad ingranaggi a dentatura elicoidale con sistema idraulico per il bilanciamento di forze assiali. |
JP5761283B2 (ja) * | 2013-09-18 | 2015-08-12 | ダイキン工業株式会社 | ギヤポンプまたはギヤモータ |
JP6075346B2 (ja) | 2014-09-30 | 2017-02-08 | ダイキン工業株式会社 | 歯車ポンプ又は歯車モータ |
US10584747B1 (en) * | 2018-12-03 | 2020-03-10 | Hamilton Sundstrand Corporation | Fuel pump bearing with non-concentric inner diameters |
CN110594150B (zh) * | 2019-10-24 | 2021-02-23 | 山东大学 | 轴向和径向静压支承的螺旋齿双圆弧齿形液压齿轮泵 |
CN111271217A (zh) * | 2020-04-04 | 2020-06-12 | 赵学清 | 一种利用液压系统回油压力发电的装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3658452A (en) | 1969-11-18 | 1972-04-25 | Shimadzu Corp | Gear pump or motor |
DE2315630A1 (de) * | 1973-03-29 | 1974-10-17 | Bosch Gmbh Robert | Zahnradmaschine |
JPS542407Y1 (de) * | 1973-07-12 | 1979-02-01 | ||
AT355916B (de) * | 1976-07-13 | 1980-03-25 | Akzo Nv | Zahnradpumpe mit verminderter leistungsaufnahme zum foerdern viskoser fluessigkeiten |
IT1124357B (it) * | 1979-11-23 | 1986-05-07 | Marzocchi Paolo & Adriano | Perfezionamenti particolarmente adatti per le pompe e per i motori idraulici ad ingranaggi di tipo elicoidale |
US4781552A (en) * | 1985-11-27 | 1988-11-01 | Jean Malfit | High pressure hydraulic generator receiver for power transmission |
JPH09280181A (ja) * | 1996-04-09 | 1997-10-28 | Shimadzu Corp | ギヤポンプ |
DE19924057A1 (de) * | 1999-05-26 | 2000-11-30 | Bosch Gmbh Robert | Zahnradmaschine (Pumpe oder Motor) |
ITBO20010540A1 (it) | 2001-09-07 | 2003-03-07 | Mario Antonio Morselli | Perfezionamenti in una pompa volumetrica rotativa |
WO2004057193A1 (de) * | 2002-12-19 | 2004-07-08 | Haldex Hydraulics Gmbh | Zahnradmaschine mit axialen seitenplatten |
US7976297B2 (en) * | 2006-02-20 | 2011-07-12 | Shimadzu Mectem, Inc. | Gear pump including introduction paths and return paths |
-
2009
- 2009-03-12 DE DE102009012853A patent/DE102009012853A1/de not_active Withdrawn
-
2010
- 2010-02-25 BR BRPI1009517-9A patent/BRPI1009517B1/pt active IP Right Grant
- 2010-02-25 CN CN201080011318.XA patent/CN102348897B/zh active Active
- 2010-02-25 US US13/256,053 patent/US8979518B2/en active Active
- 2010-02-25 JP JP2011553314A patent/JP5535246B2/ja active Active
- 2010-02-25 WO PCT/EP2010/001163 patent/WO2010102722A2/de active Application Filing
- 2010-02-25 EP EP10708110.1A patent/EP2406497B1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2010102722A2 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9366250B1 (en) | 2013-06-27 | 2016-06-14 | Sumitomo Precision Products Co., Ltd. | Hydraulic device |
Also Published As
Publication number | Publication date |
---|---|
DE102009012853A1 (de) | 2010-09-16 |
WO2010102722A2 (de) | 2010-09-16 |
CN102348897A (zh) | 2012-02-08 |
JP5535246B2 (ja) | 2014-07-02 |
BRPI1009517B1 (pt) | 2020-07-28 |
US20120114514A1 (en) | 2012-05-10 |
EP2406497B1 (de) | 2017-01-11 |
US8979518B2 (en) | 2015-03-17 |
WO2010102722A3 (de) | 2011-09-22 |
BRPI1009517A2 (pt) | 2016-07-12 |
CN102348897B (zh) | 2015-01-28 |
JP2012519798A (ja) | 2012-08-30 |
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