DE59905518D1 - Elastomer stator for eccentric screw pumps - Google Patents
Elastomer stator for eccentric screw pumpsInfo
- Publication number
- DE59905518D1 DE59905518D1 DE59905518T DE59905518T DE59905518D1 DE 59905518 D1 DE59905518 D1 DE 59905518D1 DE 59905518 T DE59905518 T DE 59905518T DE 59905518 T DE59905518 T DE 59905518T DE 59905518 D1 DE59905518 D1 DE 59905518D1
- Authority
- DE
- Germany
- Prior art keywords
- stator
- rings
- eccentric screw
- screw pumps
- elastomer stator
- 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.)
- Expired - Lifetime
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
- F04C2/10—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
- F04C2/107—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 with helical teeth
- F04C2/1071—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 with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
- F04C2/1073—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 with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type where one member is stationary while the other member rotates and orbits
- F04C2/1075—Construction of the stationary member
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Connection rings (7) are located at both ends of the stator. The rings are fabricated separately, and are fastened to the ends of a helical jacket (1), which corresponds to the inner contour of the stator. The jacket has even wall thickness over virtually all of its length. The inner faces of the rings are shaped to conform to the inner contour of the elastomer stator. Each ring has circumferential grooves (9) in the outside, to accommodate sealing rings (10).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19804260A DE19804260C2 (en) | 1998-02-04 | 1998-02-04 | Elastomer stator for an eccentric screw pump |
Publications (1)
Publication Number | Publication Date |
---|---|
DE59905518D1 true DE59905518D1 (en) | 2003-06-18 |
Family
ID=7856549
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19804260A Expired - Fee Related DE19804260C2 (en) | 1998-02-04 | 1998-02-04 | Elastomer stator for an eccentric screw pump |
DE59905518T Expired - Lifetime DE59905518D1 (en) | 1998-02-04 | 1999-01-14 | Elastomer stator for eccentric screw pumps |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19804260A Expired - Fee Related DE19804260C2 (en) | 1998-02-04 | 1998-02-04 | Elastomer stator for an eccentric screw pump |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0935071B1 (en) |
AT (1) | ATE240460T1 (en) |
CA (1) | CA2260634C (en) |
DE (2) | DE19804260C2 (en) |
ES (1) | ES2199487T3 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19950258A1 (en) * | 1999-10-18 | 2001-04-26 | Wilhelm Kaechele Gmbh Elastome | Eccentric worm pump or motor has stator with end ring with through opening of essentially similar shape to stator interior, threaded with same pitch and number of turns over ring thickness |
DE19950257B4 (en) * | 1999-10-18 | 2013-01-17 | Wilhelm Kächele GmbH Elastomertechnik | Eccentric screw pump with fully lined stator |
FR2826407B1 (en) * | 2001-06-21 | 2004-04-16 | Pcm Pompes | SPRAY PUMP STATOR AND PROCESS FOR ITS MANUFACTURE |
US7131827B2 (en) * | 2003-11-17 | 2006-11-07 | Artemis Kautschuk-Und Kunststoff-Technik Gmbh | Stator for an eccentric screw pump or an eccentric worm motor operating on the moineau principle |
DE102005028818B3 (en) * | 2005-06-22 | 2006-08-24 | Artemis Kautschuk- Und Kunststoff-Technik Gmbh | Stator for an eccentric screw pump comprises axially arranged stator segments connected pressure-tight on their contact points by a tube pulled onto a casing and overlapping the contact points and a radially flattened metal ring |
US10480506B2 (en) | 2014-02-18 | 2019-11-19 | Vert Rotors Uk Limited | Conical screw machine with rotating inner and outer elements that are longitudinally fixed |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1995353U (en) * | 1965-12-31 | 1968-10-24 | Max Streicher | CLASSIFICATION AND PROTECTION DEVICE FOR ECCENTRIC SCREW PUMPS. |
NL6815412A (en) * | 1967-11-02 | 1969-05-06 |
-
1998
- 1998-02-04 DE DE19804260A patent/DE19804260C2/en not_active Expired - Fee Related
-
1999
- 1999-01-14 ES ES99100630T patent/ES2199487T3/en not_active Expired - Lifetime
- 1999-01-14 AT AT99100630T patent/ATE240460T1/en not_active IP Right Cessation
- 1999-01-14 DE DE59905518T patent/DE59905518D1/en not_active Expired - Lifetime
- 1999-01-14 EP EP99100630A patent/EP0935071B1/en not_active Expired - Lifetime
- 1999-02-03 CA CA002260634A patent/CA2260634C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0935071B1 (en) | 2003-05-14 |
ATE240460T1 (en) | 2003-05-15 |
DE19804260A1 (en) | 1999-08-12 |
ES2199487T3 (en) | 2004-02-16 |
CA2260634A1 (en) | 1999-08-04 |
CA2260634C (en) | 2008-07-15 |
EP0935071A1 (en) | 1999-08-11 |
DE19804260C2 (en) | 2003-04-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee | ||
8370 | Indication related to discontinuation of the patent is to be deleted | ||
8339 | Ceased/non-payment of the annual fee | ||
8370 | Indication related to discontinuation of the patent is to be deleted |