WO2016091245A1 - Gerotorpumpe - Google Patents
Gerotorpumpe Download PDFInfo
- Publication number
- WO2016091245A1 WO2016091245A1 PCT/DE2015/000574 DE2015000574W WO2016091245A1 WO 2016091245 A1 WO2016091245 A1 WO 2016091245A1 DE 2015000574 W DE2015000574 W DE 2015000574W WO 2016091245 A1 WO2016091245 A1 WO 2016091245A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- tooth
- end wall
- plane
- pump
- Prior art date
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
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/084—Toothed wheels
-
- 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
- F01C21/02—Arrangements of bearings
-
- 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
- F01C21/104—Stators; Members defining the outer boundaries of the working chamber
- F01C21/106—Stators; Members defining the outer boundaries of the working chamber with a radial surface, e.g. cam rings
-
- 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
- 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
- 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
- F04C2240/20—Rotors
-
- 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
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
Definitions
- the invention relates to a gerotor pump for rotors with tooth head diameters of about 20 to about 40 mm, which operate at delivery pressures in the range between 3 to 20 bar and for conveying hardly lubricating media, such as an oil pump in the automotive sector for pumping motor oils low viscosity can be used.
- end walls are arranged as a lid and / or housing, wherein in at least one of the end walls / cover on both sides of the axes containing, in section as Center line appearing eccentricity, on the one hand a circular arc-shaped pressure groove and on the other hand, a circular arc-shaped suction groove is arranged.
- a solution presented in DE 10 2006 047 312 A1 in conjunction with a gerotor pump also serves to reduce the pressure peaks during operation of this hydraulic machine.
- two compensating surfaces in the form of two connected to the adjacent displacement chambers are located on the end face of the toothed wheel opposite the sealing element, on each tooth head above, over a part of the tooth head height symmetrical to the tooth center axis Recesses arranged, which are separated by a radial web.
- the invention is therefore based on the object to develop a gerotor pump with a sleeve-guided rotor, which eliminates the aforementioned disadvantages of the prior art, and the use of low-viscosity fluids such as "low-viscosity smooth-running oil", in conjunction with the use of smaller pump systems whose rotors have a tooth head diameter of about 20 to about 40 mm and whose discharge pressures are in the range of 3 to 20 bar, and at low speeds in the range of 500 to 1,000 rev / min and high delivery pressures the disproportionate increase in the drive torque at the same time Reduce efficiency loss significantly, so that the gerotor pump according to the invention with high reliability and long life always ensures a high pump efficiency.
- this object is achieved by a gear pump according to the features of the independent claim of the invention.
- Figure 1 a gerotor pump, in section, in side view
- Figure 2 the spatial view of the side wall 6 of the lid 7, a constructed according to the prior art analogous to Figure 1 and currently used according to the task gerotor pump, with the usual wear in the prior art 13;
- FIG. 3 shows the plan view of a rotor 1 constructed according to the invention with a planar lubricating surface 11 inclined at an inclination angle ⁇ ;
- FIG. 4 shows a top view of the tooth wall of a tooth 10 of another possible embodiment according to the invention, with the lubrication surface 11, inclined at an angle of inclination ⁇ , starting from the tooth surface in the direction of rotation R of the rotor 1 in front of the tooth center plane M.
- FIG. 5 shows the plan view of a rotor 1 constructed according to the invention with a lubricating surface 11 stepped at two inclination angles ⁇ and ⁇ ;
- Figure 6 the top view of the tooth wall shown as a detail of a further possible embodiment of the invention with in the direction of rotation R of the rotor 1 in front of the tooth center plane M "offset" beginning, graded at two inclination angles ⁇ and ß inclined lubricating surface 1 1 one with these Zahnwandept equipped, constructed analogous to Figure 5 rotor.
- zei is characterized by the fact that at the pressure kidney 8 and the suction kidney 9 adjacent end wall 5 of the rotor 1 on each tooth 10 over the tooth height H one, either in the To the tooth center plane M beginning, or in the direction of rotation R of the rotor 1 in front of the tooth center plane M "offset" beginning, inclined to the surface plane of the end wall 5 of the rotor 1 in the direction of rotation R of the rotor 1 lubrication surface 1 1 angeordent, which from a flat surface or more adjoining , planar partial surfaces is formed, which in relation to the surface plane of the end wall 5 of the rotor 1 each include an inclination angle ⁇ ,
- the wear marks 13 shown in FIG. 2, which are common in the state of the art, are due to the fact that, in the case of poorly lubricating conveying media, such as low-viscosity conveying media / oils, between the end wall 5 of the rotor 1 and the pressure kidney 8 and the suction kidney 9 provided adjacent side wall 6 of the pump housing 3 and the cover 7, a bearing lubricant film can not build up because the sliding speeds are too low, so that the system goes into the state of mixed friction, due to the bearing clearance of the rotor 1, by a from the pressure difference, between the pressure in the pressure kidney 8 and the pressure in the suction kidney 9, caused unilateral load to the adjacent side wall 6 of the gerotor pump starts, increasingly "tilts", and thereby up to a maximum tilt angle of the rotor 1, the from the possible guide play "on (ie together with) the guide sleeve results, continuously deeper i n "milled" the adjacent side wall / side walls 6.
- poorly lubricating conveying media such as low
- the inventive on each tooth 10 of the rotor 1 in the direction of rotation R of the rotor 1, on / in the pressure kidney 8 and the suction kidney 9 adjacent end wall 5 of the rotor 1 arranged inclined lubricating surface 1 1 causes, even under unfavorable conditions, such as high working pressures , in the promotion of poorly lubricating fluids, at low sliding speeds of the sliding, and inexpensive sliding mounts, the structure of a hydrodynamically bearing lubricating film between the end wall 5 of the rotor 1 and the side wall 6 of the gerotor pump adjacent thereto.
- the surface of the end wall 5 inclined in the direction of rotation R of the rotor 1 lubrication surface 1 1 flat, as shown in Figures 3 and 4, is formed, and consists of a flat surface, opposite to the surface plane of the end wall 5 of the rotor 1 includes an inclination angle ⁇ which is in the range of 0.2 ° to 7 °.
- the inclination angle is 0.2 ° and the inclination angle ß 5 °.
- Both sub-surfaces of the lubricating surface 1 1 together form a surface separating end 15 and lie at an obtuse angle to each other, wherein under the "second" inclination angle ß inclined partial surface of the lubricating surface 1 1 on the surface outlet 14 merges into the surface plane of the end wall 5 of the rotor 1.
- Both partial surfaces of the lubricating surface 1 1 merge in the direction of the rotor center along a steep surface edge 16 into the surface plane of the end wall 5 of the rotor 1.
- the rotor 1 made of the material SintD39
- the ring gear 2 also made of SintD39
- the bearing ring 12 made of St38
- the pump housing 3 is made of the material AISi9Cu3.
- the bearing sleeve 4 consists of a ceramic material which has a low roughness depth on its bearing surface.
- the guide length F of the bearing sleeve 4 is 2 times to 2.3 times the bearing diameter D.
- the guide length F of the bearing sleeve 4 is about 53% to 60% of the total length L of the bearing sleeve 4.
- the guide length F ensures the bearing sleeve 4 in addition to a positionally secure positioning, whether by gluing or press fit, the bearing sleeve 4 in the pump housing 3, in conjunction with the use of a bearing sleeve 4 made of a material with a high modulus of elasticity (eg ceramic / modulus about 380 to 400 GPa) while rigid, (ie at high radial load deflection of the bearing sleeve 4 counteracting) design of the bearing sleeve, a reliable positioning of the rotor 1 in the pump housing.
- a bearing sleeve 4 made of a material with a high modulus of elasticity (eg ceramic / modulus about 380 to 400 GPa) while rigid, (ie at high radial load deflection of the bearing sleeve 4 counteracting) design of the bearing sleeve, a reliable positioning of the rotor 1 in the pump housing.
- the pump housing 3 is made of cast aluminum. This allows in addition to a cost, production technology simple production at the same time a high reliability and long life.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201580065614.0A CN107250541B (zh) | 2014-12-09 | 2015-12-03 | 摆线泵 |
EP15831041.7A EP3230592B1 (de) | 2014-12-09 | 2015-12-03 | Gerotorpumpe |
BR112017010529A BR112017010529A2 (pt) | 2014-12-09 | 2015-12-03 | bomba gerotor |
US15/534,077 US10451056B2 (en) | 2014-12-09 | 2015-12-03 | Gerotor pump having an inner gear, a rotor, and an outer gear, with inclined lubrication surface on teeth of face wall of rotor adjacent to pressure kidney and suction kidney |
JP2017530743A JP6639505B2 (ja) | 2014-12-09 | 2015-12-03 | ジェロータポンプ |
KR1020177018791A KR20170093218A (ko) | 2014-12-09 | 2015-12-03 | 제로터 펌프 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014018179.0A DE102014018179B3 (de) | 2014-12-09 | 2014-12-09 | Gerotorpumpe |
DE102014018179.0 | 2014-12-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016091245A1 true WO2016091245A1 (de) | 2016-06-16 |
Family
ID=55235178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2015/000574 WO2016091245A1 (de) | 2014-12-09 | 2015-12-03 | Gerotorpumpe |
Country Status (8)
Country | Link |
---|---|
US (1) | US10451056B2 (de) |
EP (1) | EP3230592B1 (de) |
JP (1) | JP6639505B2 (de) |
KR (1) | KR20170093218A (de) |
CN (1) | CN107250541B (de) |
BR (1) | BR112017010529A2 (de) |
DE (1) | DE102014018179B3 (de) |
WO (1) | WO2016091245A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD923060S1 (en) * | 2018-08-09 | 2021-06-22 | Psg Germany Gmbh | Pump |
USD966342S1 (en) * | 2020-02-07 | 2022-10-11 | Pedrollo S.P.A. | Electric pump |
USD960203S1 (en) * | 2020-09-28 | 2022-08-09 | Hugo Vogelsang Maschinenbau Gmbh | Pump for liquids |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2606172C2 (de) | 1976-02-17 | 1983-12-22 | Danfoss A/S, 6430 Nordborg | Rotationskolbenmaschine für Flüssigkeiten |
US20040234393A1 (en) * | 2003-05-19 | 2004-11-25 | Youn-Ho Kim | Oil pump structure |
DE102006047312A1 (de) | 2006-10-06 | 2008-04-10 | Sauer-Danfoss Aps | Hydraulische Maschine |
DE102012205406A1 (de) | 2012-04-03 | 2013-10-10 | Robert Bosch Gmbh | Hydrostatische Verdrängermaschine mit gekrümmter Eingriffslinie und Flankenlinienrücknahme |
WO2014147440A1 (en) * | 2013-03-22 | 2014-09-25 | Settima Meccanica S.R.L. - Società A Socio Unico | Gear wheel with meshing teeth |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2229555Y (zh) * | 1995-10-13 | 1996-06-19 | 阎世英 | 内啮合齿轮回转泵 |
US7481633B2 (en) * | 2006-06-15 | 2009-01-27 | White Drive Products, Inc. | Rotor with cut-outs |
JP5591049B2 (ja) * | 2010-09-30 | 2014-09-17 | 富士重工業株式会社 | 内接歯車式流体装置 |
CN202612092U (zh) * | 2012-06-04 | 2012-12-19 | 泰兴市剑力液压件厂 | 一种低噪音内啮合摆线油泵 |
-
2014
- 2014-12-09 DE DE102014018179.0A patent/DE102014018179B3/de not_active Expired - Fee Related
-
2015
- 2015-12-03 BR BR112017010529A patent/BR112017010529A2/pt active Search and Examination
- 2015-12-03 EP EP15831041.7A patent/EP3230592B1/de active Active
- 2015-12-03 JP JP2017530743A patent/JP6639505B2/ja not_active Expired - Fee Related
- 2015-12-03 US US15/534,077 patent/US10451056B2/en not_active Expired - Fee Related
- 2015-12-03 CN CN201580065614.0A patent/CN107250541B/zh not_active Expired - Fee Related
- 2015-12-03 KR KR1020177018791A patent/KR20170093218A/ko not_active Application Discontinuation
- 2015-12-03 WO PCT/DE2015/000574 patent/WO2016091245A1/de active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2606172C2 (de) | 1976-02-17 | 1983-12-22 | Danfoss A/S, 6430 Nordborg | Rotationskolbenmaschine für Flüssigkeiten |
US20040234393A1 (en) * | 2003-05-19 | 2004-11-25 | Youn-Ho Kim | Oil pump structure |
DE102006047312A1 (de) | 2006-10-06 | 2008-04-10 | Sauer-Danfoss Aps | Hydraulische Maschine |
DE102012205406A1 (de) | 2012-04-03 | 2013-10-10 | Robert Bosch Gmbh | Hydrostatische Verdrängermaschine mit gekrümmter Eingriffslinie und Flankenlinienrücknahme |
WO2014147440A1 (en) * | 2013-03-22 | 2014-09-25 | Settima Meccanica S.R.L. - Società A Socio Unico | Gear wheel with meshing teeth |
Also Published As
Publication number | Publication date |
---|---|
US20170335844A1 (en) | 2017-11-23 |
US10451056B2 (en) | 2019-10-22 |
KR20170093218A (ko) | 2017-08-14 |
CN107250541B (zh) | 2019-03-26 |
JP6639505B2 (ja) | 2020-02-05 |
BR112017010529A2 (pt) | 2017-12-26 |
EP3230592A1 (de) | 2017-10-18 |
EP3230592B1 (de) | 2020-12-02 |
DE102014018179B3 (de) | 2016-02-18 |
CN107250541A (zh) | 2017-10-13 |
JP2017537265A (ja) | 2017-12-14 |
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