EP1404973B1 - 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
- EP1404973B1 EP1404973B1 EP02787097A EP02787097A EP1404973B1 EP 1404973 B1 EP1404973 B1 EP 1404973B1 EP 02787097 A EP02787097 A EP 02787097A EP 02787097 A EP02787097 A EP 02787097A EP 1404973 B1 EP1404973 B1 EP 1404973B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stator
- cavity
- tubular
- forming
- housing
- 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
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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
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- 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
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- 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 Moineau pump type gear pumps, also known as progressive cavity pumps, and it concerns more especially improvements made in the manufacture and structure of the stators of such pumps, these stators having a shape stator cavity helical and axial general extent inside of an elongated body.
- the stator is usually made of molded elastomer enclosed in a rigid housing.
- Such an arrangement is satisfactory in many applications for which the temperature of the product to be moved remains lower than 140 ° C, maximum acceptable temperature without damage by the elastomer, and for which also the product to moving is chemically compatible with the elastomer.
- stator cavities metal can overcome the disadvantages above mentioned in various fields of industry, provided however, that the cost of such metal cavity stators is not prohibitive.
- a structure and a method of manufacturing a Moineau pump stator in which the stator cavity is constituted by a tubular element which can be metallic.
- this known stator is of composite type: the tubular element metal defining the stator cavity is secured to an outer casing via a material elastic (such as an elastomer) filling the gap ring between the tubular metal element and the crankcase; in addition, the tubular element is dimensioned with way that, under the action of the elastic material of filling, it applies and / or maintains a constraint on the rotor of the pump.
- a material elastic such as an elastomer
- a stator thus arranged restricts the domain of use of the pump, on the one hand, because of the rotor clamping by the stator (which excludes the pumps for abrasive or highly viscous products - such as oils - and, on the other hand, because of the presence of filling material such as an elastomer (which excludes pumps intended to operate in atmospheres with high temperatures - such as extraction pumps oil in deep wells -).
- this known stator As for the process of manufacture of this known stator, it consists in arranging a metal tubular section, with a core introduced to inside it, in a crankcase; then to apply a pressure on the outside of the tubular section metal so as to deform him to make him marry the shape of the core, said pressure being able to come from a pressurized fluid introduced into the annular space between the tubular section and the housing; and finally to remove the mandrel and fill the annular space between the tubular element forming a stator cavity and the housing with an elastic material adapted for said element tubular applies and / or maintains a stress on the rotor.
- a first disadvantage lies in the fact that the deformation process, especially hydraulically, of the initial tubular section is conducted within the stator housing which serves as a pressure chamber. he then it is necessary to oversize the housing to that it can mechanically withstand the pressures of forming, while then this oversizing becomes unnecessary when operating the pump.
- the invention therefore aims to remedy simultaneously with the various disadvantages mentioned above and to propose improvements in manufacturing and the structure of the Moineau pump stators that are nature to satisfy the various requirements of the practice, particularly as regards the rigidity of the stator cavity, the structural simplicity of the stator and the conduct of the manufacturing process.
- the preliminary mechanical forming makes it possible to cause significant local radial deformations despite the substantial thickness of the wall to be deformed, but without it being possible to achieve a high precision of shape; on the contrary, the process of hydroforming under very high pressure (for example of the order of 4000 x 10 5 Pa) makes it possible to achieve a precise forming on a core, but provided that the amplitude of the localized radial deformation is relatively small.
- the step of preforming leading to roughing is done in passes successively, by successive external crushing of the metal tube between jaws opposite, the tube metal and the jaws being moved relatively in successive steps, axially and in rotation.
- the preforming step leading to the blank is done by relatively moving the tube metal and at least two pressure rollers, said tube metal which can be rotated around of its axis while the two rollers, leaning on the tube diametrically opposed, are moved parallel to the axis of said tube.
- a hydroforming process it can be performed by compressing the blank on a core disposed inside of it, which leads to transfer, by direct contact with the outer surface of the core and inner surface of the blank, the shape exact and precise dimensions of the core to the cavity statoric; or it can be done by dilation of the blank inside a mold, which implies a good control of the deformation of the metal and good control of its thickness so that the conformation of the external face of the tubular element to contact of the mold is reflected, on its internal face, by a exact conformation and precise dimensioning of the stator cavity.
- stator sections For applications at high pumps pressure that require long stators, one manufactures individually at least two stator sections as exposed above and they are joined end to end, especially by screwing or welding.
- the invention proposes a pump pump stator of the Moineau pump type, comprising a stator cavity of axial general extent inside an elongated body, characterized in that the stator cavity is defined by a rigid walled metal tubular member having internally the shape and dimensions of the stator cavity such that, after assembly of the stator with a rotor, a positive clearance with the rotor and obtained by implementation of the method and this tubular element is secured to an outer casing by means of rigid rings forming wedging spacers which are interposed between the ends of said metal tubular element forming a stator cavity and the outer casing.
- These rings form flanges for fixing the stator to adjacent elements upstream and downstream; of more in the case of the presence of an outer casing, these rigid bushes form wedge spacers interposed between the ends of said tubular member metal forming the stator cavity and crankcase external.
- the assembly of the rings with the tubular element metal forming a stator cavity and, when this is the case, with the outer casing can be carried out of any suitably, especially by welding and / or screwing.
- the annular gap defined between the tubular element metal forming the stator cavity and the housing can filled with a rigid filling material, by example a thermosetting resin or a cement, clean to reinforce the vibration resistance of the means of fastening between the tubular element and the housing.
- a rigid filling material by example a thermosetting resin or a cement
- stator constitutes the stator with a stator cavity with a wall rigid metal which is therefore able to respond to specific requirements of diverse users while, the stator cavity no longer hollowed out in a body solid metal, there is no need to appeal, for its manufacture, to expensive means and solutions much simpler and less expensive technologies can be used for this purpose, including an example particularly effective will be indicated later.
- stator long length high pressure pump
- stators of Moineau pumps with metal stator cavity (for example bronze type UE9 or similar or stainless steel type 316L or similar) that meet the aspirations at least some users, such stators being able to to be manufactured in large series under conditions interesting economic
- stator for Moineau pump designated as a whole by reference 1
- a possible embodiment of stator for Moineau pump includes a casing or external rigid casing 2, elongated and of tubular general conformation, inside which is fixed a metallic tubular element 3 with a rigid wall which internally presents the shape and dimensions of the desired stator cavity.
- FIG. 6 An enlarged perspective view of the element 3 is given in FIG. 6, which gives a more accurate representation of the Moineau profile, namely a helical gear with an almost elliptical cross section.
- the element 3 is illustrated on a length limited to a pitch P helical winding; D denotes the nominal diameter of the tubular element 3, and E denotes the eccentricity.
- the tubular element 3 forming a stator cavity is made of any suitable metal for its constitution mechanical and for the application to which the pump is destiny ; the choice of material must be such that the metal stator cavity and the metal rotor contained therein are made of materials respective metallic elements which have thermal expansion compatible so that any variation dimension of one is accompanied by a variation dimensionally similar, in amplitude and in sense, on the other hand so that a positive game approximately constant over a large range of temperatures up to 300 ° C for pumps oil extraction in deep wells (see on this point FR-A-2 756 018); likewise, 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 products acidic or basic.
- 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 diameter nominal: the essential thing is that the thickness of this wall must be sufficient to impart excellent rigidity to the tubular element 3.
- the tubular element 3 is secured to the housing external anyway appropriate own to obtaining a rigid assembly and indeformable axis.
- rings of wedging 4 are interposed between the respective ends of the tubular element 3 and the housing and fixed mechanically to these, in particular by screwing or preferably by welding.
- Such an assembly by solder is shown on the enlarged partial view of the FIG. 4, on which is schematized in 5 the bead of welding of the ring 4 on the front end of the tubular element 3 and by 6 the weld seam of the ring 4 with the end of the housing 2 in which it is partially engaged.
- tubular element 3 thus arranged does not present not enough longitudinal stiffness, it is necessary to provide one or more support Intermediate by setting up setting ring (s) intermediate (s).
- FIG. 2 which 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 resin thermosetting, a cement, a cement ceramic, ...): this results in an elimination, or at least one attenuation, vibrations of this element 3.
- a rigid filling material 8 for example a resin thermosetting, a cement, a cement ceramic,
- the metal element tubular 3 forming the stator cavity may have, at alone, sufficient rigidity and the presence of a carter 2 becomes superfluous. As illustrated in Figure 5, the stator 1 then consists only of the element tubular 3.
- the metallic tubular element 3 can be manufactured by any appropriate means. However, its shape general complex as well as dimensional accuracy and the quality of the surface condition required for its face which is, strictly speaking, the surface stator make the usual means too expensive and / or implementation too long to allow a industrial production in series.
- a solution for the implementation of this step of preforming consists in carrying out a hammering of the tube initially, as shown in Figure 7A, by exercising a diametric pressure (arrows 11) on the tube 12 taken between two jaws 10 integral with a press.
- the jaws 10 are shaped and mutually arranged (for example angularly offset from each other) of way to imprint the tube to form the hollows or "valleys" of helical windings.
- the jaws 10 providing localized deformations, it is necessary to proceed in successive passes along the tube that is moved, step by step, simultaneously axially (arrow 13) and in rotation (arrow 14) to follow the profile of the Moineau propeller.
- Another solution consists in deforming the tube between at least two pebbles rotary, as shown in FIG. 7B.
- the tube 12 is rotated around of its axis (arrow 14).
- several pebbles 21 in practice two rollers 21 diametrically opposed) are pressed towards each other so as to crush locally the tube between them: at the same time as the tube turns on itself, the two rollers 21 turn around their axes respective 22 (arrows 23) and a relative axial displacement is generated between the tube 12 and the pebble game 21.
- the tube in rotation is not moved axially, while it's the game of rotating rollers 21 which is moved (arrows 24) parallel to the axis of the tube.
- this implementation definitive form is performed by a process hydroforming, that is to say that one faces (inner or outer) of the blank 12 at a pressure hydraulic, which, given the rigidity of the wall metallic, must be high and uniformly in each point of the surface, so that the wall of the blank, despite its rigidity, is plated on a footprint of reference that it closely marries and whose it retains the exact shape and dimensions.
- the blank 12 is threaded onto a core 15 having, externally, the exact conformation desired for the stator cavity.
- the rough / core set is placed in a closed enclosure 16 (enclosure hydroforming) that is filled with a liquid. this liquid under pressure, we crush (arrows 18) the blank 12 on the nucleus 15: we thus constitute the element tubular metal 3 whose inner face is exactly shaped 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 to give the tubular element 3 to form a cavity stator.
- the ends of the blank 12 are closed hermetically and the inner volume of the draft is filled with liquid 17.
- the hydroforming process is carried out using, as a liquid medium, water brought to a pressure of the order of 4 ⁇ 10 8 Pa for a duration of about 10 minutes.
- the manufacturing process of element 3 compliant to the invention is able to be exploited industrially and allows industrial mass production of the element metal tubular 3 forming a stator cavity.
- the provisions of the invention thus make it possible to envisage mass production and at acceptable costs of Moineau pumps equipped with metal cavity stator to meet the needs in at least some areas of the industry, and in particular the pumps in which positive play must be maintained between stator and rotor.
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- 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)
Description
- si la température du produit à déplacer est supérieure à 140°C, ce qui est le cas par exemple dans les exploitations pétrolières où l'extraction des produits épais nécessite leur ramollissement préalable par injection de vapeur à des températures de l'ordre de 200 à 250°C,
- si le produit à déplacer n'est pas chimiquement inerte vis à vis de l'élastomère (produits acides ou solvants par exemple),
- dans les installations alimentaires où les pièces au contact du produit doivent être en métal inerte (par exemple acier inoxydable),
- si des produits circulant dans la pompe successivement présentent des températures respectives très différentes (fonctionnements de très basse à très haute température avec la même hydraulique de pompe ; phase de nettoyage en place dans les installations alimentaires ; sanitation à la vapeur).
- une étape préliminaire de formage mécanique au cours de laquelle ledit tube métallique cylindrique de révolution est déformé de manière à préformer une ébauche approchant, intérieurement, la forme et les dimensions de la cavité statorique souhaitée,
- puis une étape de formage définitif au cours de laquelle on soumet ladite ébauche à un processus d'hydroformage, menée à l'intérieur d'une enceinte d'hydroformage, sur une forme de moulage pour obtenir un élément tubulaire métallique rigide formant cavité statorique ayant sa forme et ses dimensions intérieures exactes telles que soit défini, après assemblage du stator avec un rotor, un jeu positif avec le rotor,
- et enfin une étape de montage de l'élément tubulaire métallique formant cavité statorique à l'intérieur d'une enveloppe externe formant carter, avec la solidarisation d'au moins les extrémités de l'élément tubulaire métallique à ladite enveloppe.
caractérisé en ce que la cavité statorique est définie par un élément tubulaire métallique à paroi rigide présentant intérieurement la forme et les dimensions de la cavité statorique telles que, après assemblage du stator avec un rotor, soit défini un jeu positif avec le rotor et obtenu par mise en oeuvre du procédé et cet élément tubulaire est solidarisé à un carter extérieur à l'aide de bagues rigides formant des entretoises de calage qui sont interposées entre les extrémités dudit élément tubulaire métallique formant cavité statorique et du carter externe.
- la figure 1 est une vue simplifiée en coupe longitudinale d'un mode de réalisation possible d'un stator constitué conformément à l'invention ;
- la figure 2 est une vue simplifiée en coupe longitudinale d'un autre mode de réalisation du stator de la figure 1.
- la figure 3 est une vue simplifiée en coupe longitudinale d'un stator long, pour pompe à haute pression, agencé selon l'invention ;
- la figure 4 est une vue agrandie d'une partie du dispositif de la figure 3 ;
- la figure 5 est une vue simplifiée en coupe longitudinale d'encore un autre mode de réalisation d'un stator constitué conformément à l'invention ;
- la figure 6 est une vue en perspective d'un élément tubulaire métallique formant cavité statorique conforme à l'invention ;
- les figures 7A et 7B sont des vues schématiques illustrant respectivement deux modes de mise en oeuvre de l'étape de préformage d'une ébauche tubulaire métallique conformément à l'invention ;
- la figure 8 est une vue schématique illustrant un premier mode de mise en oeuvre de l'étape d'hydroformage de l'élément tubulaire métallique formant cavité statorique à partir de l'ébauche préformée à l'étape illustrée aux figures 7A ou 7B ; et
- la figure 9 est une vue schématique illustrant un second mode de mise en oeuvre de l'étape d'hydroformage de l'élément tubulaire métallique formant cavité statorique à partir de l'ébauche préformée à l'étape illustrée aux figures 7A ou 7B.
- dimensions intérieures de l'élément tubulaire
métallique fini :
- D = 42,3 mm
- D+4E = 72,8 mm
- périmètre de la fibre moyenne de l'élément : 204,8 mm
- rétreint lors de la déformation par hydroformage : environ 5 %
- diamètre de la fibre moyenne du tube initial : 68,44 mm
- diamètre intérieur du tube initial ayant une épaisseur de 3,5 mm : 65 mm.
Claims (12)
- Procédé de fabrication d'un stator (1) de pompe à engrenage du type pompe Moineau, comportant une cavité statorique d'étendue générale axiale à l'intérieur d'un corps allongé, consistant à fabriquer ladite cavité statorique à partir d'un tube métallique cylindrique de révolution à paroi rigide, caractérisé en ce qu'il comprend les étapes qui suivent :une étape préliminaire de formage mécanique au cours de laquelle ledit tube métallique cylindrique de révolution est déformé de manière à préformer une ébauche (12) approchant, intérieurement, la forme et les dimensions de la cavité statorique souhaitée,puis une étape de formage définitif au cours de laquelle on soumet ladite ébauche (12) à un processus d'hydroformage, menée à l'intérieur d'une enceinte d'hydroformage, sur une forme de moulage (15, 19) pour obtenir un élément tubulaire métallique (3) formant cavité statorique ayant sa forme et ses dimensions intérieures exactes telles que soit défini, après assemblage du stator avec un rotor, un jeu positif avec le rotor,et enfin une étape de montage de l'élément tubulaire métallique (3) formant cavité statorique à l'intérieur d'une enveloppe externe formant carter (2), avec la solidarisation d'au moins les extrémités de l'élément tubulaire métallique (3) à ladite enveloppe (2).
- Procédé selon la revendication 1, caractérisé en ce que l'étape de préformage conduisant à l'ébauche (12) s'effectue par des écrasements externes (11) successifs du tube métallique entre des mors (10) en vis à vis, le tube métallique et les mors étant déplacés de façon relative par pas successifs, axialement (13) et en rotation (14).
- Procédé selon la revendication 1, caractérisé en ce que l'étape de préformage conduisant à l'ébauche (12) s'effectue en déplaçant de façon relative le tube métallique et au moins deux galets de pression disposés symétriquement à son contact.
- Procédé selon la revendication 3, caractérisé en ce que le tube métallique est mis en rotation autour de son axe et les galets sont déplacés parallèlement à l'axe du tube en étant appuyés à force contre le tube.
- Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le processus d'hydroformage est effectué par compression de l'ébauche (12) sur un noyau (15) disposé à l'intérieur de celle-ci.
- Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le processus d'hydroformage est effectué par dilatation de l'ébauche (12) disposée à l'intérieur d'un moule (19).
- Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'on remplit l'espace annulaire (7) entre l'élément tubulaire métallique (3) et l'enveloppe externe (2) avec un matériau de remplissage (8).
- Procédé pour fabriquer un stator de grande longueur, caractérisé en ce qu'on fabrique individuellement au moins deux tronçons de stator (1) selon l'une quelconque des revendications 1 à 7 et en ce qu'on les solidarise (9) bout à bout.
- Stator (1) de pompe à engrenage du type pompe Moineau, comportant une cavité statorique d'étendue générale axiale à l'intérieur d'un corps allongé,
caractérisé en ce que la cavité statorique est définie par un élément tubulaire métallique (3) à paroi rigide présentant intérieurement la forme et les dimensions de la cavité statorique telles que, après assemblage du stator avec un rotor, soit défini un jeu positif avec le rotor et obtenu par mise en oeuvre du procédé selon l'une quelconque des revendications 1 à 8 et en ce que cet élément tubulaire (3) est solidarisé à un carter extérieur (2) à l'aide de bagues rigides (4) formant des entretoises de calage qui sont interposées entre les extrémités dudit élément tubulaire métallique (3) formant cavité statorique et du carter externe (2). - Stator selon la revendication 9, caractérisé en ce que l'intervalle annulaire (7) défini entre l'élément tubulaire métallique (3) formant la cavité statorique et le carter (2) est rempli d'un matériau de remplissage (8) propre à renforcer la résistance aux vibrations des moyens de solidarisation entre l'élément tubulaire et le carter.
- Stator selon la revendication 9 ou 10, caractérisé en ce qu'il est formé d'au moins deux tronçons statoriques (1) individuellement constitués selon la revendication 7 ou 8 et solidarisés bout à bout (9).
- Stator selon la revendication 9, caractérisé en ce que le carter est pourvu d'orifices d'entrée (25a) et de sortie (25b) distants axialement pour l'admission et la circulation d'un fluide dans l'intervalle entre le carter (2) et l'élément tubulaire métallique (3).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0108189A FR2826407B1 (fr) | 2001-06-21 | 2001-06-21 | Stator de pompe moineau et procede pour sa fabrication |
FR0108189 | 2001-06-21 | ||
PCT/FR2002/002052 WO2003008807A1 (fr) | 2001-06-21 | 2002-06-14 | Procede de fabrication de stator de pompe moineau et stator ainsi obtenu |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1404973A1 EP1404973A1 (fr) | 2004-04-07 |
EP1404973B1 true EP1404973B1 (fr) | 2005-02-02 |
EP1404973B2 EP1404973B2 (fr) | 2008-05-07 |
Family
ID=8864605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02787097A Expired - Lifetime EP1404973B2 (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) |
Families Citing this family (29)
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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 |
US8523545B2 (en) | 2009-12-21 | 2013-09-03 | Baker Hughes Incorporated | Stator to housing lock in a progressing cavity pump |
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 |
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 |
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 |
AU2014300772B2 (en) * | 2013-06-28 | 2018-07-26 | Colormatrix Holdings, Inc. | Pump system for polymeric materials |
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 | 广东斯坦德流体系统有限公司 | 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 |
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DE19827101A1 (de) * | 1998-06-18 | 1999-12-23 | Artemis Kautschuk Kunststoff | Nach dem Moineau-Prinzip arbeitende Maschine für den Einsatz in Tiefbohrungen |
DE19804260C2 (de) * | 1998-02-04 | 2003-04-10 | Artemis Kautschuk Kunststoff | Elastomerstator für eine Exzenterschneckenpumpe |
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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 |
AU491586B2 (en) * | 1975-01-28 | 1976-07-29 | Sigma Lutin | Improvements relating to stators for single-spindle pumps |
ZA79440B (en) * | 1978-02-10 | 1980-09-24 | Oakes Ltd E T | Drive arrangement |
FR2756018B1 (fr) | 1996-11-21 | 1999-01-22 | Pcm Pompes | Pompe a engrenages helicoidaux |
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 |
US6241494B1 (en) * | 1998-09-18 | 2001-06-05 | Schlumberger Technology Company | Non-elastomeric stator and downhole drilling motors incorporating same |
FR2794498B1 (fr) * | 1999-06-07 | 2001-06-29 | Inst Francais Du Petrole | Pompe a cavites progressantes a stator composite et son procede de fabrication |
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 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 EA EA200301294A patent/EA005327B1/ru not_active IP Right Cessation
- 2002-06-14 EP EP02787097A patent/EP1404973B2/fr not_active Expired - Lifetime
- 2002-06-14 WO PCT/FR2002/002052 patent/WO2003008807A1/fr not_active Application Discontinuation
- 2002-06-14 CN CN02812368.9A patent/CN100535443C/zh not_active Expired - Fee Related
- 2002-06-14 CA CA002451462A patent/CA2451462C/fr not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19804260C2 (de) * | 1998-02-04 | 2003-04-10 | Artemis Kautschuk Kunststoff | Elastomerstator für eine Exzenterschneckenpumpe |
DE19827101A1 (de) * | 1998-06-18 | 1999-12-23 | Artemis Kautschuk Kunststoff | Nach dem Moineau-Prinzip arbeitende Maschine für den Einsatz in Tiefbohrungen |
Also Published As
Publication number | Publication date |
---|---|
US6872061B2 (en) | 2005-03-29 |
FR2826407B1 (fr) | 2004-04-16 |
CA2451462A1 (fr) | 2003-01-30 |
DE60202873T2 (de) | 2006-04-13 |
EP1404973B2 (fr) | 2008-05-07 |
EA005327B1 (ru) | 2005-02-24 |
EP1404973A1 (fr) | 2004-04-07 |
FR2826407A1 (fr) | 2002-12-27 |
US20040126257A1 (en) | 2004-07-01 |
CN1518639A (zh) | 2004-08-04 |
DE60202873T3 (de) | 2009-07-09 |
WO2003008807A1 (fr) | 2003-01-30 |
CA2451462C (fr) | 2008-05-27 |
CN100535443C (zh) | 2009-09-02 |
EA200301294A1 (ru) | 2004-06-24 |
DE60202873D1 (de) | 2005-03-10 |
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