EP0618363B1 - Vane pump - Google Patents
Vane pump Download PDFInfo
- Publication number
- EP0618363B1 EP0618363B1 EP19940400728 EP94400728A EP0618363B1 EP 0618363 B1 EP0618363 B1 EP 0618363B1 EP 19940400728 EP19940400728 EP 19940400728 EP 94400728 A EP94400728 A EP 94400728A EP 0618363 B1 EP0618363 B1 EP 0618363B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- paddles
- outlet
- inlet
- chamber
- 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
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/40—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member
- F04C2/44—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member with vanes hinged to the inner member
Definitions
- the invention aims to produce a pump of the type in question which can treat either more or less viscous liquids or pasty, granular or fibrous materials; of simple design at the level of the pallets which no longer include a pressure spring and at the level of the orifices input and output which include simple means for shearing the fibrous materials; easily removable for cleaning and replacement of defective parts.
- the rotary vane pump according to the invention is characterized by the characteristics described in the second part of claim 1.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Description
L'invention est relative à une pompe à palettes, apte à aspirer indifféremment des liquides plus ou moins visqueux ou des matières pâteuses, granuleuses ou fibreuses comme la viande, du genre comportant essentiellement :
- une chambre délimitée par un stator, à alésage cylindrique, et par deux flasques latéraux, circulaires, dont l'un d'entre eux comporte un orifice d'entrée et un orifice de sortie;
- un rotor, cylindrique, excentré par rapport à ladite chambre, comportant, à la périphérie, d'une part, au moins deux palettes, articulées et amovibles, et, d'autre part, des évidements aptes à loger complétement lesdites palettes et dans lesquels débouchent, pendant la rotation dudit rotor, lesdits orifices d'entrée et de sortie;
- les bords d'attaque du rotor, et des palettes, et les bords de fuite des orifices d'entrée et de sortie, de la chambre, fonctionnent à la manière d'une cisaille.
- a chamber delimited by a stator, with a cylindrical bore, and by two lateral, circular flanges, one of which comprises an inlet orifice and an outlet orifice;
- a rotor, cylindrical, eccentric with respect to said chamber, comprising, at the periphery, on the one hand, at least two pallets, articulated and removable, and, on the other hand, recesses suitable for completely accommodating said pallets and in which open, during the rotation of said rotor, said inlet and outlet orifices;
- the leading edges of the rotor, and of the vanes, and the trailing edges of the inlet and outlet orifices, of the chamber, operate in the manner of a shear.
Les pompes connues du genre en question appartenant au domaine technique le plus proche, sont essentiellement décrites dans les brevets suivants:
- FR-A-2570444 qui traite d'une pompe à palettes, à dépression, dans laquelle les ouvertures d'admission et d'échappement sont de simples fentes,les palettes étant entièrement logées dans les cavités périphériques du rotor, en appui contre leur fond, et qui est utilisée à des fins d'amplification, par dépression, de la force de freinage d'un véhicule automobile;
- GB-A-957593 qui traite d'une pompe à palettes dans laquelle les ouvertures de communication sont également de simples fentes et dont les palettes,d'un type particulier, sont également entièrement logées dans les cavités périphériques du rotor, en appui contre leur fond, et qui est utilisée exclusivement pour pomper des liquides.
- FR-A-2570444 which deals with a vane pump, vacuum, in which the intake and exhaust openings are simple slots, the vanes being entirely housed in the peripheral cavities of the rotor, pressing against their bottom , and which is used for the purpose of amplifying, by vacuum, the braking force of a motor vehicle;
- GB-A-957593 which deals with a vane pump in which the communication openings are also simple slots and whose vanes, of a particular type, are also entirely housed in the peripheral cavities of the rotor, pressing against them which is used exclusively for pumping liquids.
L'invention vise à réaliser une pompe du genre en question pouvant traiter indifféremment les liquides plus ou moins visqueux ou les matières pâteuses, granuleuses ou fibreuses;de conception simple au niveau des palettes qui ne comportent plus de ressort de pression et au niveau des orifices d'entrée et de sortie qui comportent des moyens simples permettant de cisailler les matières fibreuses; facilement démontable pour le nettoyage et pour le remplacement des pièces défectueuses.The invention aims to produce a pump of the type in question which can treat either more or less viscous liquids or pasty, granular or fibrous materials; of simple design at the level of the pallets which no longer include a pressure spring and at the level of the orifices input and output which include simple means for shearing the fibrous materials; easily removable for cleaning and replacement of defective parts.
La pompe rotative à palettes, selon l'invention est caractérisée par les caractéristiques décrites dans la deuxième partie de la revendication 1.The rotary vane pump according to the invention is characterized by the characteristics described in the second part of
Les caractéristiques et les avantages de l'invention vont apparaître plus clairement à la lecture de la description détaillée qui suit d'un mode de réalisation préféré de l'invention donné à titre d'exemple non-limitatif et représenté aux dessins annexés.
Sur ces dessins :
- la figure 1 est une vue de face intérieure de la pompe;
- la figure 2 est une vue de profil en coupe de la pompe selon AA. La pompe représentée aux figures comporte :
- un stator (1) à alésage cylindrique;
- un rotor (2), cylindrique, excentré par rapport audit alésage, comportant des évidements (14), débouchant à sa périphérie, aptes à loger complétement les palettes (3) et à contenir simultanément du produit à pomper;
- au moins deux palettes (3), articulées et amovibles, fixées pivotantes à la périphérie du rotor au moyen de logements cylindriques débouchant (15), partiellement ouverts, dans lesquels l'extrémité cylindrique (4) de la palette, faisant office d'axe, vient se loger par emboîtement glissant;
- un orifice d'entrée (5) et un orifice de sortie (6) débouchant dans la zone dégagée par les évidements (14) pendant les phases d'aspiration et de refoulement;
- un flasque arrière (7) et un flasque avant (8), par exemple vissés dans le stator, venant avec ce dernier délimiter la chambre (19) de la pompe;
- un axe (9) d'entraînement du rotor comportant une clavette (16) de verrouillage en rotation.
Les bords d'attaque du rotor et des palettes et les bords de fuite des orifices d'entrée et de sortie fonctionnent à la manière d'une cisaille. Dans la réalisation préférée de l'invention,telle que représentée aux figures, les ouvertures (5,6) d'entrée et de sortie débouchent entièrement dans la zone balayée par les parties pleines du rotor.
Les bords d'attaque du rotor et des palettes et les bords de fuite des orifices d'entrée et de sortie, qui sont perpendiculaires aux plans porteurs desdits orifices, peuvent être obliques par rapport auxdits plans de manière à former avec ces derniers un angle de coupe approprié.
Les bords d'attaque du rotor et des palettes et les bords de fuite des orifices d'entrée et de sortie, qui sont rectilignes dans la réalisation préférée de l'invention, peuvent avoir également une forme courbe appropriée pour rendre progressif le cisaillement.
Les bords extrèmes des palettes peuvent être également obliques par rapport aux rayons de l'alésage à l'endroit de leur passage sur les ouvertures périphériques tangentielles.
Les flasques avant et arrière peuvent être fixés par des vis.
Le rotor est immédiatement démontable par simple glissement le long de son axe une fois le flaque avant (7) démonté.
Les palettes sont immédiatement démontables par simple glissement le long de leur logement.
Dans la réalisation préférée de l'invention :
- les aires des évidements (14) et celles des parties pleines du rotor (2) sont identiques;
- les orifices (5,6) d'entrée et de sortie ont des dimensions et une position telles que les parties pleines du rotor (2) viennent les obturer alternativement;
- l'orifice de sortie (6) est positionné de telle manière que le début de son ouverture, lors du déplacement du rotor, coincide avec le début de la fermeture de la palette inférieure de sorte qu'il n'y ait pas de compression du produit à véhiculer à l'intérieur du corps de pompe;
- l'effet de cisaillement est exclusivement assuré par les bords d'attaque des évidements du rotor et les bords de fuite de l'orifice de sortie au moment de l'obturation, ce qui permet, en cas de pompage de produits fibreux, comme la viande, de sectionner les parties de matière à cheval entre l'intérieur de la pompe et les orifices correspondants.
Une telle configuration permet un démontage manuel, sans aucun outil,simple et rapide du rotor et des palettes.
Cet avantage est extrèmement important dans l'industrie agro-alimentaire où un démontage journalier est nécessaire pour le nettoyage et la désinfection. La pompe selon l'invention peut être par exemple réalisée en acier inox qualité alimentaire. La vitesse de rotation,qui est de l'ordre de 100 tours par minute pour ce type d'application, pourrait être beaucoup plus importante et mettre en oeuvre des matériaux à base de céramique pour les parties en frottement.The characteristics and advantages of the invention will appear more clearly on reading the following detailed description of a preferred embodiment of the invention given by way of non-limiting example and shown in the accompanying drawings.
In these drawings:
- Figure 1 is an interior front view of the pump;
- Figure 2 is a sectional side view of the pump along AA. The pump shown in the figures includes:
- a stator (1) with a cylindrical bore;
- a rotor (2), cylindrical, eccentric with respect to said bore, comprising recesses (14), opening at its periphery, capable of completely housing the vanes (3) and simultaneously containing product to be pumped;
- at least two pallets (3), articulated and removable, pivotally fixed to the periphery of the rotor by means of cylindrical openings (15), partially open, in which the cylindrical end (4) of the pallet, acting as an axis , is housed by sliding interlocking;
- an inlet (5) and an outlet (6) opening into the area cleared by the recesses (14) during the suction and delivery phases;
- a rear flange (7) and a front flange (8), for example screwed into the stator, coming with the latter delimiting the chamber (19) of the pump;
- an axis (9) for driving the rotor comprising a key (16) for locking in rotation.
The leading edges of the rotor and vanes and the trailing edges of the inlet and outlet ports work like a shear. In the preferred embodiment of the invention, as shown in the figures, the inlet and outlet openings (5,6) open entirely into the area swept by the solid parts of the rotor.
The leading edges of the rotor and of the vanes and the trailing edges of the inlet and outlet orifices, which are perpendicular to the bearing planes of said orifices, may be oblique with respect to said planes so as to form an angle with them suitable cut.
The leading edges of the rotor and of the vanes and the trailing edges of the inlet and outlet orifices, which are rectilinear in the preferred embodiment of the invention, may also have a suitable curved shape to make the shearing progressive.
The extreme edges of the pallets can also be oblique with respect to the radii of the bore at the place of their passage over the tangential peripheral openings.
The front and rear flanges can be fixed with screws.
The rotor is immediately removable by simple sliding along its axis once the front puddle (7) removed.
The pallets are immediately removable by simply sliding along their housing.
In the preferred embodiment of the invention:
- the areas of the recesses (14) and those of the solid parts of the rotor (2) are the same;
- the inlet and outlet orifices (5,6) have dimensions and a position such that the solid parts of the rotor (2) seal them alternately;
- the outlet orifice (6) is positioned in such a way that the start of its opening, when the rotor moves, coincides with the start of the closing of the lower pallet so that there is no compression of the product to be conveyed inside the pump body;
- the shearing effect is exclusively ensured by the leading edges of the recesses of the rotor and the trailing edges of the outlet orifice at the time of obturation, which makes it possible, in the event of pumping of fibrous products, such as meat, to cut off the parts of material straddling the interior of the pump and the corresponding orifices.
Such a configuration allows manual disassembly, without any tools, simple and quick of the rotor and the vanes.
This advantage is extremely important in the food industry where daily disassembly is necessary for cleaning and disinfection. The pump according to the invention can for example be made of food-grade stainless steel. The speed of rotation, which is of the order of 100 revolutions per minute for this type of application, could be much greater and use ceramic-based materials for the friction parts.
Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés pour lesquels on pourra prévoir d'autres variantes principalement dans :
- les formes et les dimensions des divers sous-ensembles de la pompe;
- le nombre de palettes et d'orifices d'entrée et de sortie de celle-ci.
- the shapes and dimensions of the various pump sub-assemblies;
- the number of pallets and entry and exit ports thereof.
Claims (5)
- Vane pump, fit to indistinctly pumping more or less viscous liquids or pastes, granules or fibres such as meat, of the type essentially including:- a chamber (19) delimited by a cylinder bore stator (1) and by two side circular flanges (7, 8), one of them (7) including an inlet port (5) and an outlet port (6),- a rotor (2), cylindric, offset with respect to said chamber (19), including on the periphery, on one side, at least two paddles (3), hinged and removable , and, on the other side, cut-outs 14) fit to completely house said paddles (3) and to which lead, during said rotor (2) rotation, said inlet(5) and outlet (6) ports; the leading edges (10) of the rotor (2) and (17, 18) of the paddles (3) as well as the trailing edges (11) of the inlet (5) and outlet (6) ports, of the chamber act as a shear;characterized in that the rotor cut-outs (14) simultaneously contain, on its periphery, the paddles (3) in such a way that, between said paddles (3), in closed position, the side flanges (7, 8) , the leading and trailing edges (10, 12) and the bottom of said cut-outs (14), is included a well fit to contain the product to be pumped and to which lead, during said rotor (2) rotation, the inlet (5) and outlet (9) ports, of the chamber (19), which are completely swept by the rotor (2) solid walls.
- Pump, according to claim 1, characterized in that the areas of the cut-outs (14) and that of the full parts of the rotor (2) are identical.
- Pump, according to claim 1, characterized in that the rotor (2) leading edges (10) and the paddles (3) leading edges (17, 18) are oblique with respect to the side plane of the flange (7) bearing the chamber (19) inlet and outlet ports (5, 6).
- Pump, according to claim 1 or claim 3, characterized in that the leading edges (10) of the rotor (2) and (17, 18), of the paddles (3), have a curved shape with respect to the trailing edges (11) of the inlet (5) and outlet (6) ports of the chamber (19).
- Pump, according to claim 1, characterized in that the outlet port (6) is positioned in such a way that the beginning of its opening, when displacing the rotor (2) is coincident with the beginning of the closing of the lower paddle (3).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9304085 | 1993-04-02 | ||
FR9304085A FR2703408B1 (en) | 1993-04-02 | 1993-04-02 | Universal rotary vane pump. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0618363A1 EP0618363A1 (en) | 1994-10-05 |
EP0618363B1 true EP0618363B1 (en) | 1997-03-12 |
Family
ID=9445818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19940400728 Expired - Lifetime EP0618363B1 (en) | 1993-04-02 | 1994-04-01 | Vane pump |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0618363B1 (en) |
DE (1) | DE69401970T2 (en) |
ES (1) | ES2101455T3 (en) |
FR (1) | FR2703408B1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19948493C2 (en) * | 1999-10-07 | 2001-10-31 | Rolf Deisenroth | Conveying, pumping and cutting system for food grinding machines, especially for meat grinders |
CN102748278B (en) * | 2009-06-15 | 2015-03-25 | 张树春 | Vane pump/motor |
KR101977379B1 (en) * | 2014-02-28 | 2019-05-13 | 한온시스템 주식회사 | Vane rotary compressor |
CN109209879B (en) * | 2018-08-13 | 2020-08-28 | 白明 | Closed rotor compressor |
CN109268260A (en) * | 2018-11-13 | 2019-01-25 | 白明 | A kind of turbopump |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB957593A (en) * | 1962-08-16 | 1964-05-06 | Anthony Frank Murphy | Positive displacement rotary pump |
DE3014520A1 (en) * | 1980-04-16 | 1981-10-22 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | TURNING PISTON |
DE3431719A1 (en) * | 1984-08-29 | 1986-03-13 | SKF GmbH, 8720 Schweinfurt | WING CELL PUMP |
DE3434501A1 (en) * | 1984-09-20 | 1986-03-27 | SKF GmbH, 8720 Schweinfurt | WING CELL PUMP |
DE3501506A1 (en) * | 1985-01-18 | 1986-07-24 | Pierburg Gmbh & Co Kg, 4040 Neuss | ROTARY BLADE PUMP |
JPH0249985A (en) * | 1988-08-11 | 1990-02-20 | Mikio Soma | Pump for feeding mixture of particulate, fluid and gas under pressure |
-
1993
- 1993-04-02 FR FR9304085A patent/FR2703408B1/en not_active Expired - Fee Related
-
1994
- 1994-04-01 EP EP19940400728 patent/EP0618363B1/en not_active Expired - Lifetime
- 1994-04-01 ES ES94400728T patent/ES2101455T3/en not_active Expired - Lifetime
- 1994-04-01 DE DE1994601970 patent/DE69401970T2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2703408B1 (en) | 1995-05-19 |
DE69401970T2 (en) | 1997-11-20 |
EP0618363A1 (en) | 1994-10-05 |
ES2101455T3 (en) | 1997-07-01 |
FR2703408A1 (en) | 1994-10-07 |
DE69401970D1 (en) | 1997-04-17 |
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