WO2003008807A1 - Procede de fabrication de stator de pompe moineau et stator ainsi obtenu - Google Patents
Procede de fabrication de stator de pompe moineau et stator ainsi obtenu Download PDFInfo
- Publication number
- WO2003008807A1 WO2003008807A1 PCT/FR2002/002052 FR0202052W WO03008807A1 WO 2003008807 A1 WO2003008807 A1 WO 2003008807A1 FR 0202052 W FR0202052 W FR 0202052W WO 03008807 A1 WO03008807 A1 WO 03008807A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stator
- tubular element
- casing
- forming
- cavity
- 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
-
- 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
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/27—Manufacture essentially without removing material by hydroforming
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49236—Fluid pump or compressor making
Definitions
- the present invention is in the field of gear pumps of the sparrow pump type, also called progressive cavity pumps, and it relates more particularly to improvements made in the manufacture and structure of the stators of such pumps, these stators comprising a stator cavity. helical in shape and generally axial in extent within an elongated body.
- the stator is usually made of molded elastomer enclosed in a rigid casing.
- Such an arrangement is satisfactory in numerous applications for which the temperature of the product to be displaced remains below 140 ° C., the maximum acceptable temperature without damage by the elastomer, and for which also the product to be displaced is chemically compatible with the elastomer.
- stators thus formed cannot be suitable in particular if the temperature of the product to be moved is greater than 140 ° C., which is the case for example in petroleum operations where the extraction of thick products requires their prior softening by injection steam at temperatures of the order of 200 to 250 ° C, - if the product to be moved is not chemically inert with respect to the elastomer (acid products or solvents for example), in food installations where the parts in contact with the product must be made of inert metal (for example stainless steel), if the products circulating in the pump successively have very different respective temperatures (operating from very low to very high temperature with the same hydraulics pump; cleaning phase in place in food facilities; steam sanitation).
- the stator cavity is constituted by a tubular element which may be metallic.
- this known stator is of the composite type: the metallic tubular element defining the stator cavity is secured to an external casing by means of an elastic material (such as an elastomer) filling the annular gap between the metallic tubular member and the housing; in addition, the tubular element is dimensioned so that, under the action of the elastic filling material, it applies and / or retains a stress on the pump rotor.
- an elastic material such as an elastomer
- a stator thus arranged limits the field of use of the pump, on the one hand, because of the tightening of the rotor by the stator (which excludes pumps for abrasive or very viscous products - such as heavy oils -) and, d on the other hand, due to the presence of the filling material such as an elastomer (which excludes pumps intended to operate in environments with high temperatures - such as petroleum extraction pumps in deep wells).
- this known stator consists in placing a metallic tubular section, with a core inserted inside of it, in a casing; then apply a pressure on the outside of the metallic tubular section so as to deform it to make it conform to the shape of the core, said pressure possibly coming from a pressurized fluid introduced into the annular space between the tubular section and the casing; and finally to withdraw the mandrel and to fill the annular space between the tubular element forming the stator cavity and the casing with an elastic material adapted so that said tubular element applies and / or retains a stress on the rotor.
- a first drawback lies in the fact that the deformation process, in particular by hydraulic means, of the initial tubular section is carried out inside the casing of the stator which thus serves as a pressure chamber. It is then necessary to oversize the casing so that it can mechanically resist the forming pressures, while then this oversizing becomes unnecessary during operation of the pump.
- the object of the invention is therefore to simultaneously remedy the various drawbacks set out above and to propose improvements in the manufacture and structure of the Moineau pump stators which are capable of satisfying the various requirements of the practice, in particular as regards concerns the rigidity of the stator cavity, the structural simplicity of the stator and the conduct of the manufacturing process.
- the invention proposes an original method of manufacturing a gear pump stator of the Moineau pump type, comprising a stator cavity of general axial extent inside a body. elongated, consisting in manufacturing said stator cavity from a cylindrical metallic tube of revolution with rigid wall, process which, being in accordance with the invention, is characterized in that it comprises the following stages:
- a final forming step during which said blank is subjected to a hydroforming process, carried out inside a hydroforming enclosure, on a molding form to obtain a rigid metallic tubular element forming a stator cavity having its exact shape and internal dimensions as defined, after assembly of the stator with a rotor, a positive clearance with the rotor, and finally a step of mounting the metallic tubular element forming a stator cavity inside a outer casing forming a casing, with the attachment of at least the ends of the metallic tubular element to said casing.
- the preliminary mechanical forming makes it possible to cause significant local radial deformations despite the notable thickness of the wall to be deformed, but without it being possible to achieve high form accuracy; on the contrary, the hydroforming process under very high pressure (for example of the order of 4000 ⁇ 10 5 Pa) makes it possible to achieve precise forming on the core, but on condition that the amplitude of the localized radial deformation is relatively small.
- the preforming step leading to the blank is carried out, by successive passes, by successive external crushing of the metal tube between jaws opposite, the metal tube and the jaws being moved relatively in successive steps, axially and in rotation.
- the preforming step leading to the blank is carried out by relatively moving the metal tube and at least two pressure rollers, said metal tube being able in particular to be rotated around its axis while the two rollers, supported on the tube in diametrically opposite directions, are moved parallel to the axis of said tube.
- the fundamental terminal step implementing a hydroforming process it can be carried out by compression of the blank on a core disposed inside thereof, which leads to transfer, by direct contact of the outer surface of the core and the inner surface of the blank, the exact shape and precise dimensions of the core to the stator cavity; or it can be carried out by expansion of the blank inside a mold, which implies a good control of the deformation of the metal and a good control of its thickness so that the conformation of the external face of the 'tubular element in contact with the mold results, on its internal face, by an exact conformation and a precise dimensioning of the stator cavity.
- the metal tubular element forming the stator cavity is introduced inside a cylindrical tubular casing, and the ends of the tubular stator cavity are joined to said casing; then optionally, the annular space between the stator cavity and the envelope is filled with a rigid filling material capable of relieving the fixing members in the presence of vibrations.
- a rigid filling material capable of relieving the fixing members in the presence of vibrations.
- the invention provides a gear pump stator of the Moineau pump type, comprising a stator cavity of general axial extent inside an elongated body, characterized in that the stator cavity is defined by a metallic tubular element with rigid wall having internally the shape and the dimensions of the stator cavity such that, after assembly of the stator with a rotor, a positive clearance is defined with the rotor and obtained by implementation of the method and this tubular element is secured to an outer casing using rigid rings forming wedging spacers which are interposed between the ends of said metallic tubular element forming stator cavity and the outer casing.
- These rings form flanges for fixing the stator to the adjacent upstream and downstream elements; moreover in the case of the presence of an external casing, these rigid rings form wedging spacers interposed between the ends of said metallic tubular element forming the stator cavity and of the external casing.
- the assembly of the rings with the metallic tubular element forming the stator cavity and, when this is the case, with the external casing can be carried out in any suitable manner, in particular by welding and / or screwing.
- the annular gap defined between the metallic tubular element forming the stator cavity and the casing can be filled with a rigid filling material, for example a thermosetting resin or a cement, capable of reinforcing the resistance to vibration of the joining means between the tubular element and the casing.
- a rigid filling material for example a thermosetting resin or a cement
- the stator is formed with a stator cavity with a rigid metal wall which is therefore able to meet the specific requirements of various users while, the stator cavity no longer being hollowed out in a solid metallic body, there is no longer any need to appeal, for its manufacture, expensive means and much simpler and less costly technological solutions can be implemented for this purpose, a particularly effective example of which will be indicated below.
- a stator of great length high pressure pump
- Moineau pump stators with metallic stator cavity (for example in bronze of type UE9 or the like or in stainless steel of the type 316L or the like) which meet the aspirations at least some users, such stators can be mass produced in attractive economic conditions.
- metallic stator cavity for example in bronze of type UE9 or the like or in stainless steel of the type 316L or the like
- FIG. 1 is a simplified view in longitudinal section of a possible embodiment of a stator formed according to the invention
- - Figure 2 is a simplified view in longitudinal section of another embodiment of the stator of Figure 1.
- - Figure 3 is a simplified view in longitudinal section of a long stator, for high pressure pump, arranged according to the invention;
- - Figure 4 is an enlarged view of part of the device of Figure 3;
- FIG. 5 is a simplified view in longitudinal section of yet another embodiment of a stator formed in accordance with the invention.
- FIG. 6 is a perspective view of a tubular metal element forming a stator cavity according to one invention
- FIGS. 7A and 7B are schematic views respectively illustrating two modes of implementation of the step of preforming a metallic tubular blank according to the invention.
- FIG. 8 is a schematic view illustrating a first embodiment of the hydroforming step of the metallic tubular element forming a stator cavity from the preformed blank in the step illustrated in Figures 7A or 7B;
- FIG. 9 is a schematic view illustrating a second embodiment of the hydroforming step of the metal tubular element forming the stator cavity from the preformed blank in the step illustrated in Figures 7A or 7B.
- a possible embodiment of a stator for a Moineau pump comprises a casing or external rigid envelope 2, of elongated shape and of general tubular conformation, inside which is fixed a metallic tubular element 3 with rigid wall which internally has the shape and the dimensions of the stator cavity sought.
- FIG. 6 An enlarged perspective view of the element 3 is given in FIG. 6, which gives a more precise representation of the Moineau profile, namely a gear. helical with quasi-elliptical cross section.
- the element 3 is illustrated over a length limited to a pitch P of helical winding; D denotes the nominal diameter of the tubular element 3, and E denotes the eccentricity.
- the tubular element 3 forming the stator cavity is made of any metal suitable for its mechanical constitution and for the application for which the pump is intended; the choice of material must be in particular such that the metallic stator cavity and the metallic rotor which is enclosed therein are made of respective metallic materials which have compatible coefficients of thermal expansion so that any dimensional variation of one is accompanied by a substantially identical dimensional variation, in amplitude and direction, of the other so that an approximately constant positive clearance is maintained over a wide temperature range up to 300 ° C. for petroleum extraction pumps in deep wells (see on this point the document FR-A-2 756 018); similarly, for food applications, the metallic material of the stator cavity must be inert with respect to the product; it is the same for example for the pumping of acidic or basic products.
- the tubular element 3 has a relatively thick wall, that is to say that the thickness of its wall represents a few percent (for example 6%) of its nominal diameter : the main thing is that the thickness of this wall must be sufficient to give excellent rigidity to the tubular element 3.
- the tubular element 3 is secured to the external casing in any suitable manner suitable for obtaining a rigid assembly and of non-deformable axis.
- wedging rings 4 are interposed between the respective ends of one tubular element 3 and the housing and mechanically fixed thereto, in particular by screwing or preferably by welding.
- Such an assembly by welding is shown in the enlarged partial view of FIG. 4, in which the weld bead of the ring 4 is shown diagrammatically at 5 on the front end of the tubular element 3 and by 6 the weld bead of the ring 4 with the end of the casing 2 in which it is partially engaged.
- tubular element 3 thus arranged does not have sufficient longitudinal rigidity, it is necessary to provide one or more intermediate support by fitting an intermediate setting ring (s).
- FIG. 2 consists in filling the annular gap 7 between the tubular element. 3 and the casing 2 with a rigid filling material 8 (for example a thermosetting resin, a cement, a cement ceramic, etc.): this results in the elimination, or at least attenuation, of the vibrations of this element 3 .
- a rigid filling material 8 for example a thermosetting resin, a cement, a cement ceramic, etc.
- stator can be assembled end to end mechanically. individually constituted as indicated above.
- Figure 3 there is shown by way of example a long stator formed by the joining end to end of two stators 1 such as that of Figure 1.
- the mechanical assembly of the two stators 1 can be performed in any suitable manner , in particular by screwing or preferably by welding.
- the weld bead for joining the two stators end to end is designated by 9: for this purpose, the end faces of the abutting rings 4 are chamfered and the weld bead 9 is deposited in the annular groove thus formed.
- the tubular metallic element 3 forming the stator cavity can, by itself, have sufficient rigidity and the presence of a casing 2 becomes superfluous. As illustrated in FIG. 5, the stator 1 then only consists of the tubular element 3.
- the metallic tubular element 3 can be manufactured by any suitable means. However, its general complex shape as well as the dimensional precision and the quality of the surface condition required for its internal face which constitutes, strictly speaking, the stator surface make the usual means too costly and / or of implementation too long to allow industrial mass production.
- a preliminary preforming step is carried out during which the tube initial metal is mechanically deformed so as to preform a tubular blank having, internally, approximately the shape and dimensions of the desired stator cavity.
- the formal and dimensional approximation can, for example, be of the order of 5%.
- One solution for the implementation of this preforming step consists in hammering the initial tube, as illustrated in FIG. 7A, by exerting a diametral pressure (arrows 11) on the tube 12 taken between two jaws 10 integral with a hurry.
- the jaws 10 are shaped and mutually arranged (for example angularly offset from one another) so as to imprint the tube in hollow to form the hollows or "valleys" of the helical windings.
- the jaws 10 providing localized deformations, it is necessary to proceed by successive passes along the tube which is moved, step by step, simultaneously axially (arrow 13) and in rotation (arrow 14) to follow the profile of the sparrow propeller. .
- Another solution consists in deforming the tube between at least two rotary rollers, as illustrated in FIG. 7B. As in the previous solution, the tube 12 is rotated about its axis (arrow 14).
- rollers 21 in practice two diametrically opposite rollers 21 are pressed towards one another so as to locally crush the tube between them: at the same time as the tube turns on itself, the two rollers 21 rotate around their respective axes 22 (arrows 23) and a relative axial displacement is generated between the tube 12 and the set of rollers 21.
- the rotating tube is not moved axially, while that it's the game of rotating rollers 21 which is moved (arrows 24) parallel to the axis of the tube.
- this final shaping is carried out by a hydroforming process, that is to say that one of the faces (interior or exterior) of the blank 12 is subjected to hydraulic pressure, which , taking into account the rigidity of the metal wall, must be high and which is exerted uniformly at each point of the surface, so that the wall of the blank, despite its rigidity, is pressed against a reference imprint which it closely follows and keeps its exact shape and dimensions.
- the blank 12 is threaded onto a core 15 having, externally, the exact shape desired for the stator cavity.
- the blank / core assembly is placed in a closed enclosure 16 (hydroforming enclosure) which is filled with a liquid 17.
- the blank 12 is crushed (arrows 18) on the core 15 : the metallic tubular element 3 is thus formed, the inner face of which is shaped exactly according to the external shape of the core 15 (hydroforming by compression on an inner core).
- the blank 12 is introduced into a mold 19 having a cavity 20 shaped according to the exact shape to be given to the tubular element 3 which must form a stator cavity.
- the ends of the blank 12 are hermetically sealed and the interior volume of the blank is filled with liquid 17.
- the blank 12 is crushed (arrows 18) against the wall of the molding cavity 20: the tubular element 3 is thus formed (hydroforming by expansion against an external mold).
- the hydroforming process is carried out using water brought to a pressure as a liquid medium. of the order of 4 ⁇ 10 8 Pa for a duration of approximately 10 minutes.
- the assembly of the stator is finished by securing this element 3 to the casing 2, for example by means of rings 4 in particular welded, and optionally with filling of the gap 7 between the element 3 and the casing 2, according to the indications given above in relation to FIGS. 1 to 4.
- the method for manufacturing the element 3 according to the invention is capable of being used industrially and allows industrial production in series of the element metallic tubular 3 forming stator cavity.
- the provisions of the invention therefore make it possible to envisage mass production and at acceptable costs of Moineau pumps fitted with metal cavity stators capable of satisfying the needs in at least certain fields of industry, and in particular pumps in which a positive play must be maintained between stator and rotor.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/478,193 US6872061B2 (en) | 2001-06-21 | 2002-06-14 | Method for making a moineau stator and resulting stator |
DE60202873T DE60202873T3 (de) | 2001-06-21 | 2002-06-14 | Verfahren zu herstellung eines stators für eine exzenterschneckenpumpe und sich daraus ergebender stator |
EA200301294A EA005327B1 (ru) | 2001-06-21 | 2002-06-14 | Статор насоса муано и способ его изготовления |
CA002451462A CA2451462C (fr) | 2001-06-21 | 2002-06-14 | Procede de fabrication de stator de pompe moineau et stator ainsi obtenu |
EP02787097A EP1404973B2 (fr) | 2001-06-21 | 2002-06-14 | Procede de fabrication de stator de pompe moineau et stator ainsi obtenu |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0108189 | 2001-06-21 | ||
FR0108189A FR2826407B1 (fr) | 2001-06-21 | 2001-06-21 | Stator de pompe moineau et procede pour sa fabrication |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003008807A1 true WO2003008807A1 (fr) | 2003-01-30 |
Family
ID=8864605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/002052 WO2003008807A1 (fr) | 2001-06-21 | 2002-06-14 | Procede de fabrication de stator de pompe moineau et stator ainsi obtenu |
Country Status (8)
Country | Link |
---|---|
US (1) | US6872061B2 (fr) |
EP (1) | EP1404973B2 (fr) |
CN (1) | CN100535443C (fr) |
CA (1) | CA2451462C (fr) |
DE (1) | DE60202873T3 (fr) |
EA (1) | EA005327B1 (fr) |
FR (1) | FR2826407B1 (fr) |
WO (1) | WO2003008807A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8523545B2 (en) | 2009-12-21 | 2013-09-03 | Baker Hughes Incorporated | Stator to housing lock in a progressing cavity pump |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2794498B1 (fr) * | 1999-06-07 | 2001-06-29 | Inst Francais Du Petrole | Pompe a cavites progressantes a stator composite et son procede de fabrication |
US7442019B2 (en) | 2002-10-21 | 2008-10-28 | Noetic Engineering Inc. | Stator of a moineau-pump |
DE20302615U1 (de) * | 2003-02-17 | 2004-07-15 | Tower Automotive Gmbh & Co. Kg | Hohlformteil mit geschlossenem Querschnitt und einer Verstärkung |
US20050109502A1 (en) * | 2003-11-20 | 2005-05-26 | Jeremy Buc Slay | Downhole seal element formed from a nanocomposite material |
US7214042B2 (en) * | 2004-09-23 | 2007-05-08 | Moyno, Inc. | Progressing cavity pump with dual material stator |
DE102005028818B3 (de) * | 2005-06-22 | 2006-08-24 | Artemis Kautschuk- Und Kunststoff-Technik Gmbh | Stator für eine Exzenterschneckenpumpe und Verfahren zu seiner Herstellung |
CA2673720C (fr) | 2007-01-24 | 2013-04-16 | Halliburton Energy Services, Inc. | Tube stator electroforme pour appareil a cavite progressive |
US8257633B2 (en) * | 2007-04-27 | 2012-09-04 | Schlumberger Technology Corporation | Rotor of progressive cavity apparatus and method of forming |
US8182252B2 (en) * | 2007-10-30 | 2012-05-22 | Moyno, Inc. | Progressing cavity pump with split stator |
US8215014B2 (en) | 2007-10-31 | 2012-07-10 | Moyno, Inc. | Method for making a stator |
US20090152009A1 (en) * | 2007-12-18 | 2009-06-18 | Halliburton Energy Services, Inc., A Delaware Corporation | Nano particle reinforced polymer element for stator and rotor assembly |
CN101892982B (zh) * | 2010-06-28 | 2012-06-20 | 中国石油大学(北京) | 单螺杆金属螺杆泵定子及其内螺旋面加工方法 |
US9309767B2 (en) | 2010-08-16 | 2016-04-12 | National Oilwell Varco, L.P. | 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 |
CN102062089A (zh) * | 2010-12-24 | 2011-05-18 | 新疆华易石油工程技术有限公司 | 一种全金属螺杆泵定子的加工方法 |
EP3014125B1 (fr) * | 2013-06-28 | 2022-02-16 | Colormatrix Holdings, Inc. | Matériaux polymères |
DE102013107884A1 (de) | 2013-07-23 | 2015-01-29 | Ralf Daunheimer | Vorrichtung zur materialabtragenden Bearbeitung der Innenwandung eines rohrförmig ausgebildeten Hohlkörpers |
CA2938763C (fr) | 2014-02-18 | 2020-12-15 | Reme Technologies, Llc | Stator elastomere ameliore par incorporation de graphene |
FR3020097B1 (fr) | 2014-04-22 | 2019-07-19 | Pcm Technologies | Pompe a cavites progressantes |
DE102014116327A1 (de) * | 2014-11-10 | 2016-05-12 | Netzsch Pumpen & Systeme Gmbh | Verfahren zur Herstellung eines gewendelten Stators und Vorrichtung zur Herstellung eines gewendelten Stators |
CN104707907B (zh) * | 2015-02-09 | 2017-04-12 | 中国石油天然气股份有限公司 | 将中空管加工成螺杆泵定子的模具及其成型方法 |
CN104907383A (zh) * | 2015-06-25 | 2015-09-16 | 王海燕 | 一种等壁厚螺杆泵定子管制造方法 |
CN105574274B (zh) * | 2015-12-18 | 2018-08-03 | 武昌船舶重工集团有限公司 | 一种大中型卧式离心铸型金属筒套截面中拉应力计算方法 |
US10920493B2 (en) * | 2017-02-21 | 2021-02-16 | Baker Hughes, A Ge Company, Llc | Method of forming stators for downhole motors |
DE102019126675A1 (de) * | 2019-10-02 | 2021-04-08 | Netzsch Pumpen & Systeme Gmbh | Exzenterschneckenpumpe in modularer bauweise |
GB2606231B (en) * | 2021-04-30 | 2023-09-27 | Edwards Ltd | Holweck drag pump and method of manufacture |
CN113399484B (zh) * | 2021-05-11 | 2023-03-28 | 广东斯坦德流体***有限公司 | 一种螺杆泵衬套成型机 |
FR3136019B1 (fr) | 2022-05-25 | 2024-05-10 | Pcm Tech | Pompe à cavités progressives et dispositif de pompage |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU491586B2 (en) * | 1975-01-28 | 1976-07-29 | Sigma Lutin | Improvements relating to stators for single-spindle pumps |
FR2756018A1 (fr) * | 1996-11-21 | 1998-05-22 | Pcm Pompes | Pompe a engrenages helicoidaux |
FR2794498A1 (fr) * | 1999-06-07 | 2000-12-08 | Inst Francais Du Petrole | Pompe a cavites progressantes a stator composite et son procede de fabrication |
US6241494B1 (en) * | 1998-09-18 | 2001-06-05 | Schlumberger Technology Company | Non-elastomeric stator and downhole drilling motors incorporating same |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3139035A (en) * | 1960-10-24 | 1964-06-30 | Walter J O'connor | Cavity pump mechanism |
US3457762A (en) * | 1967-04-28 | 1969-07-29 | Arma Corp | Compression method for making a tubular product |
ZA79440B (en) * | 1978-02-10 | 1980-09-24 | Oakes Ltd E T | Drive arrangement |
DE19804260C2 (de) * | 1998-02-04 | 2003-04-10 | Artemis Kautschuk Kunststoff | Elastomerstator für eine Exzenterschneckenpumpe |
DE19804259A1 (de) * | 1998-02-04 | 1999-08-12 | Artemis Kautschuk Kunststoff | Elastomerstator für Exzenterschneckenpumpen |
US6309195B1 (en) * | 1998-06-05 | 2001-10-30 | Halliburton Energy Services, Inc. | Internally profiled stator tube |
DE19827101A1 (de) * | 1998-06-18 | 1999-12-23 | Artemis Kautschuk Kunststoff | Nach dem Moineau-Prinzip arbeitende Maschine für den Einsatz in Tiefbohrungen |
US6497030B1 (en) * | 1999-08-31 | 2002-12-24 | Dana Corporation | Method of manufacturing a lead screw and sleeve mechanism using a hydroforming process |
-
2001
- 2001-06-21 FR FR0108189A patent/FR2826407B1/fr not_active Expired - Fee Related
-
2002
- 2002-06-14 EP EP02787097A patent/EP1404973B2/fr not_active Expired - Lifetime
- 2002-06-14 CA CA002451462A patent/CA2451462C/fr not_active Expired - Lifetime
- 2002-06-14 WO PCT/FR2002/002052 patent/WO2003008807A1/fr not_active Application Discontinuation
- 2002-06-14 DE DE60202873T patent/DE60202873T3/de not_active Expired - Lifetime
- 2002-06-14 US US10/478,193 patent/US6872061B2/en not_active Expired - Lifetime
- 2002-06-14 CN CN02812368.9A patent/CN100535443C/zh not_active Expired - Fee Related
- 2002-06-14 EA EA200301294A patent/EA005327B1/ru not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU491586B2 (en) * | 1975-01-28 | 1976-07-29 | Sigma Lutin | Improvements relating to stators for single-spindle pumps |
FR2756018A1 (fr) * | 1996-11-21 | 1998-05-22 | Pcm Pompes | Pompe a engrenages helicoidaux |
US6241494B1 (en) * | 1998-09-18 | 2001-06-05 | Schlumberger Technology Company | Non-elastomeric stator and downhole drilling motors incorporating same |
FR2794498A1 (fr) * | 1999-06-07 | 2000-12-08 | Inst Francais Du Petrole | Pompe a cavites progressantes a stator composite et son procede de fabrication |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8523545B2 (en) | 2009-12-21 | 2013-09-03 | Baker Hughes Incorporated | Stator to housing lock in a progressing cavity pump |
Also Published As
Publication number | Publication date |
---|---|
US20040126257A1 (en) | 2004-07-01 |
CA2451462A1 (fr) | 2003-01-30 |
US6872061B2 (en) | 2005-03-29 |
EP1404973B1 (fr) | 2005-02-02 |
CN100535443C (zh) | 2009-09-02 |
DE60202873T3 (de) | 2009-07-09 |
FR2826407B1 (fr) | 2004-04-16 |
EA005327B1 (ru) | 2005-02-24 |
DE60202873D1 (de) | 2005-03-10 |
CN1518639A (zh) | 2004-08-04 |
DE60202873T2 (de) | 2006-04-13 |
EP1404973A1 (fr) | 2004-04-07 |
EA200301294A1 (ru) | 2004-06-24 |
FR2826407A1 (fr) | 2002-12-27 |
CA2451462C (fr) | 2008-05-27 |
EP1404973B2 (fr) | 2008-05-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1404973B1 (fr) | Procede de fabrication de stator de pompe moineau et stator ainsi obtenu | |
EP0488858B1 (fr) | Procédé de fabrication de paroi de chambre de combustion, notamment pour moteur-fusée, et chambre de combustion obtenue par ce procédé | |
CA2311175C (fr) | Pompe a cavites progressantes a stator composite et son procede de fabrication | |
CA2595181C (fr) | Stator double en materiau resilient a epaisseur controlee et methode de formage | |
US6543132B1 (en) | Methods of making mud motors | |
FR2593099A1 (fr) | Procede de fabrication de corps frittes comportant des conduits interieurs, outil a filer pour la mise en oeuvre du procede et outil de percage. | |
WO2012017171A1 (fr) | Manchon tubulaire de jonction en matiere plastique pour conduite comportant un chemisage interne | |
FR2536119A1 (fr) | Assemblage d'un element rotatif en ceramique avec un element rotatif metallique pour turbo-machines, notamment pour propulseur a turbine a gaz et dispositif de mise en oeuvre | |
CA2603427C (fr) | Bielle structurale creuse et procede de fabrication d'une telle bielle | |
US20110271527A1 (en) | Controlled thickness resilient material lined stator and method of forming | |
FR2863033A1 (fr) | Realisation, par expansion plastique, d'un joint tubulaire etanche avec surface(s) de butee inclinee(s) | |
RU2340793C2 (ru) | Эксцентриковый червячный насос с эрозионно-стойким ротором | |
FR2862354A1 (fr) | Pompe a cylindree variable, en particulier pompe a palettes | |
EP4143015A1 (fr) | Procédé de fabrication par moulage de pièces en matériau composite allongées et creuses, dispositif de moule pour sa mise en oeuvre et pièces obtenues | |
FR2845735A1 (fr) | Pompe a vide a embout | |
CA2874377C (fr) | Pompe a cavites progressives | |
EP1170076A1 (fr) | Procédé de fabrication d'un manchon destiné à accoupler deux arbres cannelés et manchon d'accouplement obtenu par le procédé | |
FR2548949A1 (fr) | Procede de fabrication de corps creux en beton precontraint, en particulier de tubes de beton precontraint, corps creux realise selon le procede, en particulier tube de beton precontraint, et dispositif pour sa mise en oeuvre | |
WO2018029417A1 (fr) | Volant d'inertie en béton et enveloppe filaire de précontrainte et son procédé de fabrication | |
CH350433A (fr) | Elément creux formé d'une matière filamenteuse et procédé pour sa fabrication | |
FR2863030A1 (fr) | Realisation, par expansion plastique, d'un joint tubulaire etanche avec surface(s) de butee inclinee(s) | |
EP4214044B1 (fr) | Moule pour la fabrication d'un carter de soufflante de turbomachine en materiau composite a dilatation differentielle | |
EP0655968B1 (fr) | Appareil de production, par extrusion, en continu, de tubes composites renforces par un insert | |
FR2972956A1 (fr) | Procede de fabrication d’un element tubulaire composite et element tubulaire composite | |
FR3143709A1 (fr) | Réservoir modulaire pour gaz sous pression |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE 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 NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG US |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 10478193 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2002787097 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2451462 Country of ref document: CA Ref document number: 028123689 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200301294 Country of ref document: EA |
|
WWP | Wipo information: published in national office |
Ref document number: 2002787097 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWG | Wipo information: grant in national office |
Ref document number: 2002787097 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: JP |