EP0866225A1 - Pompe à engrenages internes avec de segments d'étanchéité inserés dans les têtes des dents - Google Patents
Pompe à engrenages internes avec de segments d'étanchéité inserés dans les têtes des dents Download PDFInfo
- Publication number
- EP0866225A1 EP0866225A1 EP98101501A EP98101501A EP0866225A1 EP 0866225 A1 EP0866225 A1 EP 0866225A1 EP 98101501 A EP98101501 A EP 98101501A EP 98101501 A EP98101501 A EP 98101501A EP 0866225 A1 EP0866225 A1 EP 0866225A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ring gear
- pinion
- sealing element
- groove
- toothing
- 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
Definitions
- the present invention relates to a sickle-free internal gear pump for Generation of high pressure according to the preamble of the claim.
- a pump of this generic type is from DE 41 40 293 C2 known.
- Internal gear pumps generally have an internal gear with which an externally toothed pinion meshes with a smaller number of teeth, i.e. is drivingly engaged.
- the teeth of such pumps - based on the diameter of the pinion or the ring gear - relatively narrow, so that after the volume flow to be pumped through the height of the teeth and the width of the toothing is determined, this volume flow at the common pumps is limited for design reasons.
- Sickle Internal gear pumps have the particular advantage of minimal Construction volume.
- the profile groove also the The task is to limit the radial movement of the sealing element.
- the profilnut has the function of a radial end stop.
- the present invention is based on the problem, a sickle-free internal gear pump of the generic type to specify at the aforementioned problem does not exist.
- the essence of the present invention lies in the sealing element and / or to design the profile groove so that along the contact surfaces between Sealing element and profile groove (at least) effecting pressure equalization (Control) groove is incorporated.
- FIG. 1 shows a sickle-free, head-sealing and cross-section backlash, each with a flank sealing internal gear pump, and in the area of a housing part 1, which - viewed in the axial direction - Connect further housing parts.
- a fixed on a drive shaft 4 externally toothed pinion 5 meshes with an internally toothed ring gear 6 and thus forms a toothing 12.
- the pinion 5 and the ring gear 6 are not coaxially but eccentrically; also has the pinion 5 one tooth less than the pinion 6, so that the outside of each Toothed head 14 comes into contact with the ring gear 6.
- a Suction port 7 in the zone where the rotation in the direction of arrow X Teeth on pinion 5 or ring gear 6 are out of engagement.
- a pressure port 10 is also located starting from a ring gear 6 extending over a circumferential region extending pressure pocket 11, on the opposite side of the pump. The inflow from the pressure medium to the interior of the pump, i.e. to the Tooth gaps in the pinion 5 and in the ring gear 6, which promote the Cause pressure medium takes place via radial openings 17 in the ring gear 6. These openings 17 start from the outer surface 20 of the ring gear 6 and flow into its tooth base.
- FIGS. 2 to 5 show "Z" according to FIG. 1, corresponding to detail a sealing element 30 inserted into a profile groove 34 of the pinion is shown, once - analogously to FIG. 1 - in supervision and once in a side view, arrows II, III, IV and V clarify how the side view is see is.
- Fig. 2 shows a first embodiment, according to - in the direction of rotation X of the pinion 5 viewed - in the trailing side surface of the sealing element 30 a groove 52 is incorporated. As can be seen from the side view, is this groove 52 at both ends towards the head of the sealing element 30 pulled up.
- Fig. 3 shows a second embodiment according to - in the direction of rotation X considered - a groove 53 on the trailing side surface of the profile groove 34 is incorporated. From the side view it can be seen that the Groove 53 at both ends to the head of the radial groove 34 or the tooth head on Pinion is pulled up.
- Fig. 4 shows a third embodiment according to - in the direction of rotation X considered - a groove 54 on the leading side surface of the sealing element 30 is incorporated.
- Fig. 5 shows a fourth embodiment, according to the lagging Side surface of the radial groove 34, a groove 55 is incorporated.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712169A DE19712169C1 (de) | 1997-03-22 | 1997-03-22 | Sichellose Innenzahnradpumpe mit in den Zahnköpfen eingesetzten Dichtelementen |
DE19712169 | 1997-03-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0866225A1 true EP0866225A1 (fr) | 1998-09-23 |
EP0866225B1 EP0866225B1 (fr) | 2001-07-04 |
Family
ID=7824358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98101501A Expired - Lifetime EP0866225B1 (fr) | 1997-03-22 | 1998-01-29 | Pompe à engrenages internes avec de segments d'étanchéité inserés dans les têtes des dents |
Country Status (7)
Country | Link |
---|---|
US (1) | US6093006A (fr) |
EP (1) | EP0866225B1 (fr) |
JP (1) | JPH10266974A (fr) |
DE (2) | DE19712169C1 (fr) |
DK (1) | DK0866225T3 (fr) |
ES (1) | ES2159160T3 (fr) |
TW (1) | TW411984U (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103573617A (zh) * | 2012-07-24 | 2014-02-12 | 株式会社爱德克斯 | 齿轮泵装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19804134A1 (de) * | 1998-02-03 | 1999-08-12 | Voith Turbo Kg | Sichellose Innenzahnradpumpe |
CN101984257B (zh) * | 2010-10-30 | 2012-03-28 | 辽宁工程技术大学 | 平衡式内啮合齿轮泵 |
US10207535B2 (en) * | 2013-11-08 | 2019-02-19 | Sanford, L.P. | Self-cleaning gear assembly for pencil sharpeners |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3171587A (en) * | 1961-01-21 | 1965-03-02 | Nsu Motorenwerke Ag | Sealing structures |
US3238929A (en) * | 1962-07-24 | 1966-03-08 | Daimler Benz Ag | Engine seal |
EP0545424A1 (fr) * | 1991-12-06 | 1993-06-09 | J.M. Voith GmbH | Pompe à engrenages internes avec joint d'étanchéité incorporé dans les dents |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US60366A (en) * | 1866-12-11 | moekis | ||
DE3633330A1 (de) * | 1986-10-01 | 1988-04-07 | Pierburg Gmbh | Drehkolbenmaschine |
-
1997
- 1997-03-22 DE DE19712169A patent/DE19712169C1/de not_active Expired - Fee Related
-
1998
- 1998-01-29 ES ES98101501T patent/ES2159160T3/es not_active Expired - Lifetime
- 1998-01-29 DE DE59800951T patent/DE59800951D1/de not_active Expired - Fee Related
- 1998-01-29 DK DK98101501T patent/DK0866225T3/da active
- 1998-01-29 EP EP98101501A patent/EP0866225B1/fr not_active Expired - Lifetime
- 1998-03-12 US US09/041,261 patent/US6093006A/en not_active Expired - Fee Related
- 1998-03-20 TW TW088218981U patent/TW411984U/zh not_active IP Right Cessation
- 1998-03-20 JP JP10072601A patent/JPH10266974A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3171587A (en) * | 1961-01-21 | 1965-03-02 | Nsu Motorenwerke Ag | Sealing structures |
US3238929A (en) * | 1962-07-24 | 1966-03-08 | Daimler Benz Ag | Engine seal |
EP0545424A1 (fr) * | 1991-12-06 | 1993-06-09 | J.M. Voith GmbH | Pompe à engrenages internes avec joint d'étanchéité incorporé dans les dents |
DE4140293A1 (de) | 1991-12-06 | 1993-06-09 | J.M. Voith Gmbh, 7920 Heidenheim, De | Sichellose innenzahnradpumpe mit in die zahnkoepfe eingesetzten dichtelementen |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103573617A (zh) * | 2012-07-24 | 2014-02-12 | 株式会社爱德克斯 | 齿轮泵装置 |
CN103573617B (zh) * | 2012-07-24 | 2016-12-07 | 株式会社爱德克斯 | 齿轮泵装置 |
Also Published As
Publication number | Publication date |
---|---|
TW411984U (en) | 2000-11-11 |
US6093006A (en) | 2000-07-25 |
DE59800951D1 (de) | 2001-08-09 |
ES2159160T3 (es) | 2001-09-16 |
EP0866225B1 (fr) | 2001-07-04 |
DK0866225T3 (da) | 2001-10-15 |
DE19712169C1 (de) | 1998-03-12 |
JPH10266974A (ja) | 1998-10-06 |
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