WO2005047701A2 - Stator für eine exzenterschneckenpumpe oder einen exzenterschneckenmotor nach dem moineau-prinzip - Google Patents
Stator für eine exzenterschneckenpumpe oder einen exzenterschneckenmotor nach dem moineau-prinzip Download PDFInfo
- Publication number
- WO2005047701A2 WO2005047701A2 PCT/EP2004/013029 EP2004013029W WO2005047701A2 WO 2005047701 A2 WO2005047701 A2 WO 2005047701A2 EP 2004013029 W EP2004013029 W EP 2004013029W WO 2005047701 A2 WO2005047701 A2 WO 2005047701A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stator
- inner tube
- outer tube
- stator according
- thread
- 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
- F04C2/10—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
Definitions
- the invention relates to a stator for an eccentric screw pump or an eccentric screw motor with a stator, which has an outer tube with a lining made of rubber or a rubber-like material and a cavity shaped in the manner of a two- or multi-start helical thread for receiving a rigid, also shaped in the manner of a helical thread Has rotor, the steep thread of the stator each has a gear more than the steep thread of the rotor.
- the invention has for its object to provide a stator that remains functional even under conditions where the tight bond between the liner and the outer tube z. B. would be destroyed by chemical influences or high temperatures.
- This object is achieved in that an inner tube provided with openings is arranged in the lining.
- the lining's elastomeric material clings to the inner tube by penetrating the openings. This results in a positive connection between the individual parts of the stator, which is far better suited to withstand the loads described above than a chemical rubber-metal connection, for example by means of an adhesion promoter.
- spacer strips are arranged between the outer tube and the inner tube.
- the elastomer material of the lining can not only penetrate the openings in the inner tube. It can also, at least in the area between the spacer strips
- the inner tube Enclose inner tube and has a flat contact to the outer tube in these areas.
- the inner tube can be connected to the outer tube, e.g. B. by welding on the end faces or holes that penetrate the outer tube.
- the spacer strips achieve a particularly firm and secure connection between the parts of the stator without significantly increasing the effort involved in manufacturing the stator and with regard to the components used.
- the stator is usually produced in such a way that the elastomer material that is to form the lining is introduced into the outer tube by spraying, the inner tube already being arranged in the outer tube.
- the spacer strips prevent the inner tube from being pushed towards the outer tube by the spray pressure. They thus ensure that there is sufficient space between the outer tube and inner tube, which the elastomer material fills, which passes through the openings in the interior, thereby creating undercuts which ensure a very good positive connection with the inner tube.
- the spacer strips can be straight, flat profiles which extend in the direction of the longitudinal axis of the stator and practically over most of its length, several spacer strips of this type being arranged distributed over the circumference of the inner tube.
- the spacer strips are annular and enclose the circumference of the inner tube, it being possible for a plurality of such rings to be arranged spaced apart in the longitudinal direction on a stator.
- the spacer bar can be helical. This embodiment has the advantage that a single spacer bar of this type may already be sufficient.
- a similar intimate claw between the Elsto material of the lining and the inner tube can also be achieved by a further embodiment of the invention by the inner tube having perforations is wave-shaped, it being immaterial whether the waveform is chosen in the axial or radial direction of the inner tube ,
- spacer bar / s in cross section is not limited. It can e.g. B. round, square and / or rectangular spacer strips can be used.
- FIG. 2 shows another embodiment of the stator according to the invention in cross section
- FIG. 3 shows a section of the outer and inner tubes of a stator according to FIG. 2 in a perspective view with partially exposed layers
- FIG. 5 shows the perspective illustration of a further embodiment according to the invention with partially exposed layers
- FIG. 6 shows a longitudinal section through the end piece of a stator according to FIG. 2,
- FIG. 7 shows a longitudinal section through the end piece of a stator according to FIG. 2 in a modified version compared to FIG. 6,
- FIG. 8 shows a further embodiment of a stator according to the invention in cross section
- Fig. 9 shows another embodiment of a stator according to the invention in longitudinal section
- FIG. 10 shows a further embodiment of a stator.
- the stator shown in Fig. 1 has an outer tube 1 made of a solid material, for. B. steel, on the inside of which a lining 2 made of rubber or a rubber-like material is arranged.
- the lining 2 has a bore 3, which is shown only roughly in the drawing.
- the bore 3 forms the space for receiving the rotor (not shown) and the material to be conveyed (pump cavity) if the stator is used in an eccentric screw pump, or the space for receiving the flowing drive means if the stator is part of a device used as a motor is.
- the bore 3 extends over the entire length of the stator.
- an inner tube 4 is arranged in the outer tube 1, which has a perforation or a plurality of openings 5 and which is firmly connected to the outer tube 1.
- the openings 5 are filled with the material of the lining 2. This results in a positive connection between the outer tube 1 and the liner 2, which secures the liner 2 both against displacement in the longitudinal direction and against rotation about its axis.
- a connection between the outer tube and the lining produced by vulcanization or gluing can be omitted.
- FIGS. 2 and 3 has the same components as the stator according to FIG. 1, but here there are spacers 6 between the outer tube 1 and the inner tube 4 are arranged.
- FIG. 2 shows the cross section of the stator shown in perspective in FIG. 3.
- the number of four spacer strips 4 selected in FIGS. 2 and 3 is exemplary.
- the inner tube 4 can either consist of a tube having openings or be formed from a commercially available perforated plate which is bent cylindrically. To produce a stator according to the invention, the inner tube 4 and the spacer strips 6 m are pushed the outer tube 1. The rubber material of the lining 2 can then be introduced by spraying.
- FIG. 4 and 5 show two possibilities of how the spacer strips 6 ', 6 "' can be arranged between the outer tube 1 and the inner tube 4. While in FIG. 4, a spacer strip 6 'surrounds the inner tube 4 in a helical shape 5 a ring formed from the spacer bar 6 'around the inner tube 4. It goes without saying that a plurality of rings 6 "" can be arranged distributed around the inner tube 4 (not shown here). It is also not mandatory, only to use a spacer strip 6 'which surrounds the inner tube 4. Two or more spacer strips can also be attached according to the invention.
- connection can be made by welding at the front 8, which
- connection can be made by spot welds 9, which are provided at various locations in bores distributed across the circumference and the length of the stator and which penetrate the outer tube 1 and the spacer bar 6 (FIG. 7).
- the outer tube 1 and the inner tube 4 can be connected to one another by an interference fit.
- connection techniques mentioned here can also be used if only one inner tube is used, that is to say without the spacer strips 6, 6 'or 6' ', as shown in FIG. 1.
- the inner tube 4 has elevations 7 which extend outwards, that is to say in the direction of the outer tube 1. These elevations then ensure the desired spacing from the outer tube 1, so that the spacer bar / spacer bars 6 can be omitted.
- the elastomer material of the lining 2 can then also enclose the inner tube.
- the spacer strip (s) can also be dispensed with, for example, if the inner tube is designed in a wave shape.
- FIG. 8 shows such a special embodiment.
- the wave form of the inner tube 4 continues in the circumferential direction
- FIG. 9 shows a stator in which the inner tube 4 is deformed in a wave shape in the axial direction.
- the inner tube is enclosed by the elastomer compound.
- the waveform could also continue helically around the longitudinal axis of the stator (not shown here).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04803161.1A EP1733147B1 (de) | 2003-11-17 | 2004-11-17 | Stator für eine exzenterschneckenpumpe oder einen exzenterschneckenmotor nach dem moineau-prinzip |
BRPI0416634-5A BRPI0416634A (pt) | 2003-11-17 | 2004-11-17 | estator para uma bomba espiral excêntrica ou um motor helicoidal excêntrico que opera no princìpio de moineau |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/725,967 | 2003-11-17 | ||
US10/725,967 US7316548B2 (en) | 2003-11-17 | 2003-11-17 | Stator for an eccentric screw pump or an eccentric worm motor operating on the Moineau principle |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005047701A2 true WO2005047701A2 (de) | 2005-05-26 |
WO2005047701A3 WO2005047701A3 (de) | 2005-07-07 |
Family
ID=34574704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/013029 WO2005047701A2 (de) | 2003-11-17 | 2004-11-17 | Stator für eine exzenterschneckenpumpe oder einen exzenterschneckenmotor nach dem moineau-prinzip |
Country Status (5)
Country | Link |
---|---|
US (1) | US7316548B2 (de) |
EP (1) | EP1733147B1 (de) |
BR (1) | BRPI0416634A (de) |
CA (1) | CA2473282C (de) |
WO (1) | WO2005047701A2 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1600636A2 (de) | 2004-05-14 | 2005-11-30 | Robbins & Myers Energy Systems, L.P. | Exzenterschneckenpumpe oder -motor |
DE102012012076A1 (de) | 2012-06-13 | 2013-12-19 | Arnold Jäger Holding GmbH | Stator einer Exzenterschneckenpumpe |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005308210A (ja) * | 2004-03-26 | 2005-11-04 | Hitachi Metals Ltd | フレキシブル管 |
US9163629B2 (en) | 2006-07-31 | 2015-10-20 | Schlumberger Technology Corporation | Controlled thickness resilient material lined stator and method of forming |
US7739792B2 (en) * | 2006-07-31 | 2010-06-22 | Schlumberger Technology Corporation | Method of forming controlled thickness resilient material lined stator |
EP2467916A4 (de) | 2009-08-21 | 2014-06-04 | Titeflex Corp | Energieabschwächungsröhren, abdichtvorrichtungen dafür sowie verfahren zu ihrer herstellung und installation |
GB2481226A (en) | 2010-06-16 | 2011-12-21 | Nat Oilwell Varco Lp | Stator for a progressive cavity (PC) pump or motor |
GB2497225B (en) | 2010-08-16 | 2017-10-11 | Nat Oilwell Varco Lp | Reinforced stators and fabrication methods |
US8944789B2 (en) | 2010-12-10 | 2015-02-03 | National Oilwell Varco, L.P. | Enhanced elastomeric stator insert via reinforcing agent distribution and orientation |
GB2551304B (en) | 2012-02-22 | 2018-02-28 | Nat Oilwell Varco Lp | Stator for progressive cavity pump/motor |
DE102012112044B4 (de) * | 2012-05-04 | 2015-10-08 | Netzsch Pumpen & Systeme Gmbh | Selbstfixierendes Statorgehäuse |
RU2516094C2 (ru) * | 2012-08-06 | 2014-05-20 | Открытое акционерное общество Научно-производственное объединение "Искра" | Статор одновинтового насоса |
WO2014138068A1 (en) | 2013-03-05 | 2014-09-12 | Schlumberger Canada Limited | Method and apparatus to manufacture a progressive cavity motor or pump |
US9541225B2 (en) | 2013-05-09 | 2017-01-10 | Titeflex Corporation | Bushings, sealing devices, tubing, and methods of installing tubing |
EP3108142B1 (de) | 2014-02-18 | 2017-11-15 | Vert Rotors UK Limited | Drehmaschine mit positiver verdrängung |
BR112016019261B1 (pt) | 2014-02-18 | 2022-06-14 | Reme Technologies, Llc | Seção de energia de cavidade progressiva |
CN106685152B (zh) * | 2015-11-10 | 2019-03-12 | 耐驰(兰州)泵业有限公司 | 制造用于偏心螺杆泵的可液压调整的定子的方法 |
RU2646664C1 (ru) * | 2017-06-22 | 2018-03-06 | Михаил Валерьевич Шардаков | Статор винтовой гидромашины, устройство и способ для изготовления его внутренней зубчатой оболочки |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2250263A1 (de) | 1972-10-13 | 1974-04-25 | Gummi Jaeger Kg Gmbh & Cie | Nachstellbarer gummielastischer stator fuer exzenterschneckenpumpen |
DE19842754A1 (de) | 1998-09-18 | 2000-04-06 | Seepex Seeberger Gmbh & Co | Exzenterschneckenpumpe |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2541779A1 (de) * | 1975-09-19 | 1977-03-31 | Allweiler Ag | Stator fuer exzenterschneckenpumpen |
US4313717A (en) * | 1979-10-04 | 1982-02-02 | Kopecky Eugene F | Adjustable pressure extrusion pump |
DE3119568A1 (de) * | 1981-05-16 | 1982-12-02 | Big Dutchman (International) AG, 8090 Wezep | Exzenterschneckenpumpe |
DE3322095A1 (de) * | 1983-06-20 | 1984-12-20 | Gummi-Jäger KG GmbH & Cie, 3000 Hannover | Stator fuer exzenterschneckenpumpen |
JPS61180512A (ja) * | 1986-01-21 | 1986-08-13 | 日立電線株式会社 | 直接冷却型電力ケーブル線路の構成方法 |
US5171138A (en) * | 1990-12-20 | 1992-12-15 | Drilex Systems, Inc. | Composite stator construction for downhole drilling motors |
DE4134853C1 (de) * | 1991-05-22 | 1992-11-12 | Netzsch-Mohnopumpen Gmbh, 8264 Waldkraiburg, De | |
US5171139A (en) * | 1991-11-26 | 1992-12-15 | Smith International, Inc. | Moineau motor with conduits through the stator |
DE4403598A1 (de) * | 1994-02-07 | 1995-08-10 | Arnold Jaeger | Exzenterschneckenpumpe |
DE19801020A1 (de) * | 1998-01-14 | 1999-07-22 | Artemis Kautschuk Kunststoff | Elastomerstator für Exzenterschneckenpumpen |
-
2003
- 2003-11-17 US US10/725,967 patent/US7316548B2/en not_active Expired - Fee Related
-
2004
- 2004-07-08 CA CA2473282A patent/CA2473282C/en not_active Expired - Fee Related
- 2004-11-17 WO PCT/EP2004/013029 patent/WO2005047701A2/de active Application Filing
- 2004-11-17 BR BRPI0416634-5A patent/BRPI0416634A/pt not_active Application Discontinuation
- 2004-11-17 EP EP04803161.1A patent/EP1733147B1/de not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2250263A1 (de) | 1972-10-13 | 1974-04-25 | Gummi Jaeger Kg Gmbh & Cie | Nachstellbarer gummielastischer stator fuer exzenterschneckenpumpen |
DE19842754A1 (de) | 1998-09-18 | 2000-04-06 | Seepex Seeberger Gmbh & Co | Exzenterschneckenpumpe |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1600636A2 (de) | 2004-05-14 | 2005-11-30 | Robbins & Myers Energy Systems, L.P. | Exzenterschneckenpumpe oder -motor |
EP1600636A3 (de) * | 2004-05-14 | 2006-07-19 | Robbins & Myers Energy Systems, L.P. | Exzenterschneckenpumpe oder -motor |
DE102012012076A1 (de) | 2012-06-13 | 2013-12-19 | Arnold Jäger Holding GmbH | Stator einer Exzenterschneckenpumpe |
Also Published As
Publication number | Publication date |
---|---|
EP1733147B1 (de) | 2016-12-28 |
BRPI0416634A (pt) | 2007-01-16 |
CA2473282C (en) | 2010-04-13 |
WO2005047701A3 (de) | 2005-07-07 |
CA2473282A1 (en) | 2005-05-17 |
EP1733147A2 (de) | 2006-12-20 |
US7316548B2 (en) | 2008-01-08 |
US20050106004A1 (en) | 2005-05-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1733147B1 (de) | Stator für eine exzenterschneckenpumpe oder einen exzenterschneckenmotor nach dem moineau-prinzip | |
DE2709394C2 (de) | Wellendichtung | |
DE2733048C2 (de) | Rohrverbindung | |
DE102013101256A1 (de) | Antriebseinheit | |
EP1738078B1 (de) | Stator für eine exzenterschneckenpumpe oder einen exzenterschneckenmotor nach dem moineau-prinzip | |
EP2592264B1 (de) | Blattanschluss für ein Rotorblatt einer Windenergieanlage | |
EP2256345A2 (de) | Stator für eine Exzenterschneckenpumpe oder einen Exzenterschneckenmotor und Verfahren zur Herstellung eines Stators | |
EP0172348B1 (de) | Abdichtung | |
WO2014180621A1 (de) | Stator für eine förderpumpe | |
DE19950257B4 (de) | Exzenterschneckenpumpe mit vollausgekleidetem Stator | |
EP1222396B1 (de) | Stator mit stabilem stirnring | |
DE102008030469B4 (de) | Drehmomentwandler mit einem Innenring aus mehreren Abschnitten | |
DE19708932C1 (de) | Faltenbalg | |
DE102005031677B4 (de) | Abgasbehandlungseinrichtung und zugehöriges Herstellungsverfahren | |
DE1425453A1 (de) | Druck- und/oder Saugschlauch | |
DE3438379C2 (de) | ||
EP1598580A1 (de) | Radial-Wellendichtring | |
DE19804260C2 (de) | Elastomerstator für eine Exzenterschneckenpumpe | |
DE19638321C2 (de) | Gleitringdichtung mit Stützring | |
EP1690580B1 (de) | Filterrohr | |
DE2715076C3 (de) | Rohrweite für Schiffs-Wellenleitung | |
DE2834136C2 (de) | ||
DE102013202918A1 (de) | Zahnradmaschine mit einem Stützkörper für eine Axialfelddichtung | |
DE102021130260A1 (de) | Stator für Exenterschneckenmaschine sowie Herstellungsverfahren für diesen | |
DE102013202606A1 (de) | Zahnradmaschine mit einer Lagerhülse, die mehrere Vorsprünge aufweist. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: DE |
|
REEP | Request for entry into the european phase |
Ref document number: 2004803161 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004803161 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2004803161 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: PI0416634 Country of ref document: BR |