EP1782888B1 - Buse de jet pour le rotor d'une centrifugeuse et le rotor d'une centrifugeuse avec tels buse de jet - Google Patents

Buse de jet pour le rotor d'une centrifugeuse et le rotor d'une centrifugeuse avec tels buse de jet Download PDF

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Publication number
EP1782888B1
EP1782888B1 EP06022362A EP06022362A EP1782888B1 EP 1782888 B1 EP1782888 B1 EP 1782888B1 EP 06022362 A EP06022362 A EP 06022362A EP 06022362 A EP06022362 A EP 06022362A EP 1782888 B1 EP1782888 B1 EP 1782888B1
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EP
European Patent Office
Prior art keywords
rotor arm
rotor
jet nozzle
end piece
centrifuge
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.)
Not-in-force
Application number
EP06022362A
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German (de)
English (en)
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EP1782888A1 (fr
Inventor
Uwe Dr. Meinig
Dieter Baumann
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Ing Walter Hengst GmbH and Co KG
Original Assignee
Ing Walter Hengst GmbH and Co KG
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Application filed by Ing Walter Hengst GmbH and Co KG filed Critical Ing Walter Hengst GmbH and Co KG
Publication of EP1782888A1 publication Critical patent/EP1782888A1/fr
Application granted granted Critical
Publication of EP1782888B1 publication Critical patent/EP1782888B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/005—Centrifugal separators or filters for fluid circulation systems, e.g. for lubricant oil circulation systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/06—Fluid drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • F01M2001/1028—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the type of purification
    • F01M2001/1035—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the type of purification comprising centrifugal filters

Definitions

  • the present invention relates to a recoil nozzle of a centrifuge with a rotor, in particular a two-piece rotor with a lifetime component of the centrifuge performing drive part and a replaceable dirt trap part, the recoil nozzle pointing substantially in Rotortangentialides at the outer end of a pointing substantially in the rotor radial direction tubular rotor arm with a disposed therein channel through which the recoil nozzle, a drive fluid can be supplied under pressure.
  • the invention relates to a rotor with such recoil nozzles.
  • the free-jet centrifuges comprise a rotor with a drive by means of at least one recoil nozzle.
  • two different versions of the drive are disclosed in this document.
  • the rotor has a respective rotor arm per recoil nozzle, which has essentially radially outward and is initially open at its end.
  • a nozzle bore is mounted, which has substantially in Rotortangentialides.
  • the nozzle bore can only be made by a hole is introduced from the outside into the hollow interior of the insert.
  • the second embodiment of the drive which is disclosed in the same document, provides that in a rotor base, the recoil nozzle is formed directly, in which case the recoil nozzle either as a bore extending from the outside into the interior of the rotor base, or can be made can be produced by means of a suitably arranged mold slide in a spritzscher manufacture of the rotor lower part. Also in this second embodiment of the recoil nozzle, there is the disadvantage that the nozzle contour inside the rotor base can not be designed freely. Thus, an optimal flow guidance of the rotor driving lubricating oil can not be achieved.
  • the document DE 10 2004 005 920 A1 shows a centrifuge with a separate Hero turbine, wherein a rotor of the centrifuge comprises a collection chamber, which houses a P
  • abtrenn issued and a drive chamber with a Hero turbine.
  • the drive chamber includes a pair of flow nozzles, each defining an open channel in fluid communication with an inner opening of the drive chamber.
  • Each flow nozzle includes a tubular portion connected to the body of the drive chamber and a tapered nozzle tip which discharges the flow.
  • the drive chamber and the flow nozzles are designed and arranged to produce an outgoing jet of fluid (oil) in a direction substantially tangential to the rotor.
  • the manufacture and assembly of such a large number of items is time consuming and laborious and therefore expensive.
  • the document EP 0 699 826 A1 describes a hydraulic fluid circuit with a main flow filter and a particular arranged in the secondary flow centrifuge, in particular for supplying an engine with purified lubricating oil.
  • the centrifuge here has a rotor made of sheet metal with recoil nozzles for its drive.
  • recoil nozzle is here in a punched hole in the bottom of the rotor, a blind rivet used as a nozzle.
  • the production of the nozzle takes place by the initially undeformed rivet is placed on a nail.
  • the outer diameter of the nail corresponds to the desired inner diameter of the finished nozzle.
  • the production of the recoil nozzle is expensive here and also requires accessibility both from the outside of the rotor forth as well as to the interior, to be able to remove it from the rotor after the ejection of the remaining nail part inside. Again, therefore, a large number of manufacturing steps is required, resulting in a relatively large production cost.
  • the use of this type of recoil nozzles is limited to centrifuge rotors made of sheet metal, as on a rotor made of plastic, the forces occurring during the riveting process can very easily lead to damage to the rotor and leaks.
  • the document DE 101 11 381 A1 shows a means of liquid flowing by drivable centrifuge for a device for separating impurities from the liquid.
  • the centrifuge forms part of a device for separating impurities from the lubricating oil of an internal combustion engine, wherein the centrifuge is traversed by the lubricating oil to be cleaned for its drive.
  • a rotor has the centrifuge at least one outlet for the liquid, which is arranged eccentrically with respect to a rotational axis of the rotor and drives the rotor according to the recoil principle.
  • the outlet diameter of the outlet and / or the smallest diameter in the outlet is greater than the measured in the flow direction length of a portion of the outlet with this outlet diameter or this smallest diameter.
  • the lowest possible wall friction of the liquid in the region of the recoil nozzle is to be achieved in order to improve the efficiency of the recoil drive at low temperature of the liquid, here with still cold lubricating oil, which is relatively viscous.
  • this improvement in the efficiency of the recoil drive at a low temperature of the lubricating oil is offset by the disadvantage that the efficiency of warm lubricating oil, which is less viscous, is no longer optimal.
  • the object is to provide a recoil nozzle of a centrifuge, which on the one hand generates a drive fluid jet, are minimized in the flow components across the beam axis, and on the other hand, a low manufacturing and assembly costs requires and thus can be produced economically. Furthermore, a rotor with such recoil nozzles is to be specified.
  • the fluid flow components in the drive fluid jet can be minimized transversely to the fluid jet axis, which improves the propulsion efficiency of the recoil nozzle.
  • the tool opening which is needed only during the generation of the inlet funnel and the spray hole, in the rotor arm itself or in the Rotorarmend Published associated with this.
  • the rotor arm end piece has the shape of a tubular profile closed radially on the outside.
  • the hollow interior of the tube profile provides a space for the flow of the drive fluid; the frontal closure of the tube profile provides the necessary seal at the radially outer end of the rotor arm.
  • the invention preferably proposes that the nozzle contour of the recoil nozzle is a contour machined through the tool aperture.
  • the nozzle contour is created by removing material from either the rotor arm or the Rotorarmend Published.
  • the machined contour is a bore produced with a centering drill with a rounded cone.
  • a suitable center drill is specified, for example, in DIN 333 type R (with radius curve).
  • the rounded cone of the center drill thereby produces the inflow funnel, while the injection hole is drilled with the tip of the center drill.
  • the inflow funnel and the injection hole are advantageous here a contour generated in a single drilling operation, which contributes to an economical production.
  • the nozzle contour of the recoil nozzle can also be a contour produced by means of a mold slide guided through the tool opening. Also in this embodiment, the nozzle contour is comparatively simple and therefore economical to produce.
  • Rotorarmend SwissMA is pressed in Rotorarmaxial Vietnamese inward on the rotor arm or pressed into the rotor arm.
  • Such a press connection is easy to produce and requires in their simplest embodiment only a matching vote of the cooperating outer and inner diameter of the rotor arm and Rotorarmend thoroughly, in particular a suitable excess to achieve a sufficient frictional engagement in the compression. This can already be achieved in a simple manner, the necessary tight and tight fit of the Rotorarmenddozenss on the rotor arm.
  • this is preferably combined with a Christmas tree profile and / or with circumferential sealing grooves on the rotor arm and / or on the rotor arm end piece.
  • the Rotorarmend SwissMA is connected to the rotor arm by means of a screw.
  • a screw provides a long-term high security against loosening of the connection when the screw is designed accordingly.
  • the screw connection is formed by conical threads.
  • connection suggests that the Rotorarmend Partners with the rotor arm by mating and subsequent pressing in Rotorarmradialcardi or crimping in Rotorarmaxialcardi, in particular by Taumelnietung is connected. Also in this embodiment, the connection between Rotorarmend sandwiches and rotor arm has a very high solubility.
  • connection between the Rotorarmend combin and the rotor arm by an adhesive, a sealant, at least one sealing ring, such as O- Ring, or sealed by extending in radial and / or circumferential sealing ribs.
  • a sealant such as O- Ring
  • the connection between Rotorarmend sandwiches and rotor arm can be kept permanently fluid-tight.
  • the mechanical coding can be formed by a one-sided flattening, an eccentric front-side slot, an asymmetrical recess or elevation or an asymmetrically recessed or raised profile on the end face of the rotor end piece.
  • the coding is at least visually recognizable and can be used by a person performing the assembly for proper alignment; Alternatively, the coding can also cooperate with an automatic assembly tool and thus provide for a forced correct position assembly.
  • the Rotorarmend Gia is a Drehfrästeil made of metal.
  • the Rotorarmends can be relatively cheap and accurately produced here with a rotary milling machine.
  • the Rotorarmend SwissMA is a workpiece made of a sintered material.
  • Sintered materials are particularly wear-resistant, so that there is the possibility of using a relatively small amount of usually relatively expensive sintered material to make the thrust jets very durable, so that they maintain the contour once produced even with pollution contained in the driving fluid over the entire life without a significant wear occurs ,
  • Rotorarmend also be a die-cast metal, which is also inexpensive to produce and tool falling.
  • Rotorarmend SwissMA is an injection molded part made of plastic.
  • This embodiment is particularly suitable for such recoil nozzles, in which the thermal and mechanical loads are not extremely high. With correspondingly high-quality plastic, however, even relatively high thermal and mechanical loads can be absorbed without damage.
  • the invention proposes a rotor of a centrifuge, in particular a two-part rotor with a lifetime component of the centrifuge performing drive part and a replaceable dirt catching part, wherein a recoil nozzle pointing substantially in Rotortangentialides at the outer end of at least one pointing substantially in the rotor radial direction tubular rotor arm with a therein is arranged, wherein the rotor is characterized by at least one recoil nozzle according to one of claims 1 to 17.
  • FIG. 1 shows an embodiment of a centrifuge 1 'in longitudinal section.
  • the centrifuge 1 comprises a housing 10, which is only partially shown here and the upper side is closed during operation of the centrifuge 1 by a screw 11.
  • the screw cap 11 is in screw engagement with a lower, not shown part of the housing 10.
  • an upwardly projecting axis 12 is held, on which a rotor 2 by means of a lower bearing 13 and an upper bearing 13 'is rotatably mounted.
  • the axis 12 is held centering with its upper end.
  • the rotor 2 is here formed in two parts with a drive part 20 and a dirt trap part 20 '.
  • the drive part 20 comprises a central hollow body 21 which is mounted rotatably on the axle 12 by means of the two bearings 13 and 13 '. From the axially lower portion of the central hollow body 21 are opposite each other two rotor arms 22 in the radial direction obliquely downward and outward from, wherein due to the angled extending section in FIG. 1 only in the right half of one of the two rotor arms 22 is visible.
  • Through each rotor arm 22 extends a channel 23 for the supply of a drive fluid to a arranged at the radially outer end of the rotor arm 22 recoil nozzle 3.
  • the recoil nozzle 3 is provided here in a Rotorarmend Culture 4, which is connected to the radially outer end 22 'of the rotor arm 22 ,
  • the dirt trap part 20 ' is rotationally fixed in operation of the centrifuge 1 with the drive member 20 and slidably connected in the axial direction immovable or limited to a limited extent. With the screw cap 11 removed, the dirt trap part 20 can be unlocked and pulled off in the axial direction upward from the drive part 20 and replaced by a fresh dirt trap part 20 '.
  • FIGS. 2 to 8 show several different versions of Rotorarmenden 22 'with the recoil nozzle 3, wherein all the return nozzles 3 is common here, that they are each designed aerodynamically favorable with a Einströmtrichter 30 and a spray hole 31. This produces a virtually non-diverging drive fluid jet that minimizes flow components transverse to the jet direction. Thus, a high efficiency of the drive of the rotor is achieved by the recoil nozzles 3.
  • the recoil nozzle 3 is provided with its inlet funnel 30 and spray hole 31 in a first wall portion 24 at the radially outer end 22 'of the rotor arm.
  • a tool aperture 25 is mounted, which is in alignment with the inflow funnel 30 and the injection hole 31.
  • Rotorarmends 4 are tubular and has a sealed, in FIG. 2 Coincident with the inflow funnel 30 and the injection hole 31, an opening 43 is arranged in a first wall portion 44 of the Rotorarmend sandwichess 4, whose diameter is greater than the maximum diameter of the inlet funnel 30 and through through it a drive fluid from the channel 23 in the inflow funnel 30 and through the injection hole 31 can flow.
  • the tool opening 25 opposite the inflow funnel 30 and the injection hole 31 in the second wall region 24 'of the rotor arm end 22' is now closed by a second wall region 44 'of the rotor arm end piece 4.
  • the recoil nozzle 3 with inlet funnel 30 and injection hole 31 can be produced from top to bottom through the tool opening 25, for example by means of a centered drill with a rounded cone.
  • the rotor arm end 4 can be inserted in the proper position, after which the now no longer required tool opening 25 is fluid-tightly closed.
  • a mechanical coding 48 which is attached to the end face 41 of the Rotorarmend Cambodias 4. This coding 48 is in the right part of FIG FIG. 2 shown in front view and here has the shape of a stepped rib.
  • the recoil nozzle 3 is provided with its inflow funnel 30 and its injection hole 31 in Rotorarmend Swiss 4 in a first wall portion 44.
  • a tool aperture 45 is provided in alignment with the inflow funnel 30 and the injection hole 31.
  • an opening 26 is provided which is significantly larger than the injection hole 31 of the recoil nozzle 3, so that an emerging from the spray hole 31 of the recoil nozzle 3 drive fluid jet can pass through the aperture 26 unhindered.
  • FIG. 3 is further shown in the Rotorarmende 22 inserted Rotorarmend Suite 4 existing in the latter tool opening 45 by the lying there outside of the Rotorarmend Georgia 4 second wall portion 24 'of the Rotorarmendes 22' fluid-tight manner.
  • the Rotorarmendmila 4 is also here in the axial direction of the Rotorarmendes 22 'pressed into this.
  • the recoil nozzle 3 is positioned to match the aperture 26, a mechanical coding 48 is also provided here on Rotorarmend Suite 4, the right in FIG. 3 clearly visible in front view and here has the shape of a lying at the bottom of the end face 41 stage.
  • Rotorarmendsurprisinglys 4 serves here, as in the example after FIG. 2 , A provided at the front end 41 of the Rotorarmend thoroughlys 4 collar, which rests against the free end of the Rotorarmendes 22 '.
  • FIG. 4 shows an embodiment in which the recoil nozzle 3 with inlet funnel 30 and spray hole 31 is again in Rotorarmend Swiss 4.
  • In its remaining parts and in its production corresponds to the embodiment according to FIG. 4 according to the example FIG. 3 , With regard to the further reference numbers in FIG. 4 Reference is made to the preceding description.
  • FIG. 5 shows an embodiment, which in many parts with the embodiment according to FIG. 3 matches. It is different that in the example according to FIG. 5 the press connection between the Rotorarmend Cambodia 4 and the Rotorarmende 22 'is combined with a so-called Christmas tree profile 46, which is highlighted in the enlarged detail "X" and shown enlarged.
  • This Tannenbaumprofil 46 ensures a particularly tight fit of Rotorarmend Cambodias 4 in Rotorarmende 22 ', as it acts like barbs.
  • FIG. 6 shows an embodiment, which in many parts with the embodiment according to FIG. 4 matches.
  • the example below FIG. 6 the press connection between the Rotorarmend Swiss 4 and the Rotorarmende 22 'combined with sealing grooves 46', which are shown highlighted in the enlarged detail "Y".
  • the mechanical coding 48 is formed by a protruding from the end face 41 of the Rotorarmend Swisss 4 rib.
  • FIG. 7 shows an embodiment in which the recoil nozzle 3 with inflow funnel 30 and spray hole 31 is also in Rotorarmend La 4.
  • the Rotorarmend Partners 4 expediently made of metal; in the example according to FIG. 7
  • the rotor arm end piece 4 can advantageously be a plastic part.
  • Rotorarmend structured 4 is also here in the axial direction of the Rotorarmendes 22 'pressed into this.
  • the preparation of the recoil nozzle 3 with the inflow funnel 30 and the injection hole 31 can also be done here by means of a corresponding drill through the tool opening 45 above the recoil nozzle 3.
  • the Rotorarmendgins 4 here be made as an injection molded part, in which case a movable mold slide is then performed by the tool opening 45 during the injection process of the Rotorarmend sangs 4 in an injection mold.
  • Rotorarmend combin 4 and Rotorarmende 22 also serves a mechanical coding 48 on the front side 41 of the Rotorarmendrioss 4.
  • the coding 48 again, comparable to the example according to FIG. 5 formed by a groove.
  • FIG. 8 shows a final embodiment, for which is characteristic that here the Rotorarmend Published 4, in which again the recoil nozzle 3 is not in the Rotorarmende 22 'inserted but attached to the Rotorarmende 22', also preferably pressed here is.
  • the recoil nozzle 3 with inflow funnel 30 and spray hole 31 is also here before placing the Rotorarmend Sharings 4 on the Rotorarmende 22 'by means of a guided through the tool opening 45 tool either produced by machining or injection molding.

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  • Centrifugal Separators (AREA)

Claims (19)

  1. Tuyère à réaction (3) d'une centrifugeuse (1) avec un rotor (2), en particulier un rotor (2) en deux parties avec une partie d'entraînement (20) constituant un composant de longévité de la centrifugeuse (1) et une partie de piégeage d'impuretés (20') remplaçable, la tuyère à réaction (3) étant orientée sensiblement dans la direction tangentielle du rotor et située à l'extrémité extérieure (22') d'un bras de rotor (22) tubulaire orienté sensiblement dans le sens radial du rotor, avec un canal (23) le traversant, lequel permet l'amenée sous pression d'un fluide d'entraînement à la tuyère à réaction (3),
    caractérisée en ce que
    - la tuyère à réaction (3) présente un contour de tuyère avec une trémie d'afflux (30) et un trou d'injection (31) et se trouve dans une première partie de paroi (24) à l'extrémité extérieure (22') du bras de rotor (22),
    - une ouverture pour outil (25), dont le diamètre correspond au moins au plus grand diamètre de la trémie d'afflux (30), est située en face de la trémie d'afflux (30) et du trou de tuyère (31) et en alignement avec ceux-ci dans une deuxième partie de paroi (24') du bras de rotor (22) et
    - l'ouverture pour outil (25) et l'extrémité radialement extérieure (22') du bras de rotor (22) sont fermées par une pièce terminale du bras de rotor (4) séparée montée sur le bras de rotor (22).
  2. Tuyère à réaction (3) d'une centrifugeuse (1) avec un rotor (2), en particulier un rotor (2) en deux parties avec une partie d'entraînement (20) constituant un composant de longévité de la centrifugeuse (1) et une partie de piégeage d'impuretés (20') remplaçable, la tuyère à réaction (3) étant orientée sensiblement dans la direction tangentielle du rotor et située à l'extrémité extérieure (22') d'un bras de rotor (22) tubulaire orienté sensiblement dans le sens radial du rotor, avec un canal (23) le traversant, lequel permet l'amenée sous pression d'un fluide d'entraînement à la tuyère à réaction (3),
    caractérisée en ce que
    - la tuyère à réaction (3) présente un contour de tuyère avec une trémie d'afflux (30) et un trou d'injection (31) et se trouve dans une première partie de paroi (44) d'une pièce terminale du bras de rotor (4) séparée située à l'extrémité extérieure (22') du bras de rotor (22),
    - une ouverture pour outil (45), dont le diamètre correspond au moins au plus grand diamètre de la trémie d'afflux (30), est située en face de la trémie d'afflux (30) et du trou de tuyère (31) et en alignement avec ceux-ci dans une deuxième partie de paroi (44') de la pièce terminale du bras de rotor (4) et
    - l'ouverture pour outil (45) est fermée par le bras de rotor (22) et l'extrémité radialement extérieure (22') du bras de rotor (22) est fermée par la pièce terminale du bras de rotor (4).
  3. Tuyère à réaction selon la revendication 1 ou 2, caractérisée en ce que la pièce terminale de rotor (4) a la forme d'un profilé tubulaire fermé radialement extérieurement sur le côté frontal.
  4. Tuyère à réaction selon l'une des revendications 1 à 3, caractérisée en ce que le contour de la tuyère à réaction (3) est un contour réalisé par enlèvement de matière à travers l'ouverture pour outil (25 ou 45).
  5. Tuyère à réaction selon la revendication 4, caractérisée en ce que le contour réalisé par enlèvement de matière est un perçage réalisé au moyen d'un foret de centrage à cône arrondi.
  6. Tuyère à réaction selon l'une des revendications 1 à 3, caractérisée en ce que le contour de la tuyère à réaction (3) est un contour réalisé selon une technique de coulage ou de moulage par injection à l'aide d'une coulisse de moule passant à travers l'ouverture pour outil (25 ou 45).
  7. Tuyère à réaction selon l'une des revendications 1 à 6, caractérisée en ce que la pièce terminale du bras de rotor (4) est, dans le sens axial du bras de rotor, pressée vers l'intérieur sur le bras de rotor (22) ou dans le bras de rotor (22).
  8. Tuyère à réaction selon la revendication 7, caractérisée en ce que la liaison par pressage est combinée à un profil en sapin (46) et/ou à des rainures d'étanchéité périphériques (46') sur le bras de rotor (22) et/ou sur la pièce terminale du bras de rotor (4).
  9. Tuyère à réaction selon l'une des revendications 1 à 6, caractérisée en ce que la pièce terminale du bras de rotor (4) est reliée au bras de rotor (22) au moyen d'une liaison par vissage.
  10. Tuyère à réaction selon la revendication 9, caractérisée en ce que la liaison par vissage est réalisée par des filets coniques.
  11. Tuyère à réaction selon l'une des revendications 1 à 6, caractérisée en ce que la pièce terminale du bras de rotor (4) est reliée au bras de rotor (22) par emboîtement et pressage subséquent dans le sens radial du bras de rotor ou par liaison étanche par sertissage dans le sens axial du bras de rotor, en particulier par rivetage par fluage radial.
  12. Tuyère à réaction selon l'une des revendications 7 à 11, caractérisée en ce que la liaison entre la pièce terminale du bras de rotor (4) et le bras de rotor (22) est rendue étanche par une colle, une masse d'étanchéité, au moins une bague d'étanchéité telle qu'un joint torique ou des nervures d'étanchéité dans le sens radial et/ou dans le sens du pourtour.
  13. Tuyère à réaction selon l'une des revendications précédentes, caractérisée en ce que seule la pièce terminale du bras de rotor (4) ou tant le bras de rotor (22) que la pièce terminale du bras de rotor (4) est / sont réalisés avec un codage mécanique (48) garantissant un montage à orientation définie de la pièce terminale du bras de rotor (4) sur le bras de rotor (22).
  14. Tuyère à réaction selon la revendication 13, caractérisée en ce que le codage mécanique (48) est réalisé par un aplatissement unilatéral, une fente excentrique sur le côté frontal, un creux ou un bossage asymétriques ou un profil en forme de creux ou de bossage asymétriques sur la face frontale (41) de la pièce terminale du bras de rotor (4).
  15. Tuyère à réaction selon l'une des revendications 1 à 14, caractérisée en ce que la pièce terminale du bras de rotor (4) est une pièce tournée fraisée en métal.
  16. Tuyère à réaction selon la revendication 15, caractérisée en ce que la pièce terminale du bras de rotor (4) est une pièce usinée en matériau fritté.
  17. Tuyère à réaction selon l'une des revendications 1 à 14, caractérisée en ce que la pièce terminale du bras de rotor (4) est une pièce en métal coulée sous pression.
  18. Tuyère à réaction selon l'une des revendications 1 à 14, caractérisée en ce que la pièce terminale du bras de rotor (4) est une pièce en matière plastique moulée par injection.
  19. Rotor (2) d'une centrifugeuse (1), en particulier rotor (2) en deux parties avec une partie d'entraînement (20) constituant un composant de longévité de la centrifugeuse (1) et une partie de piégeage d'impuretés (20') remplaçable, la tuyère à réaction (3) étant orientée sensiblement dans la direction tangentielle du rotor et située à l'extrémité extérieure (22') d'au moins un bras de rotor (22) tubulaire orienté sensiblement dans le sens radial du rotor, avec un canal (23) le traversant, lequel permet l'amenée sous pression d'un fluide d'entraînement à la tuyère à réaction (3),
    caractérisée par au moins une tuyère à réaction (3) selon l'une des revendications précédentes.
EP06022362A 2005-11-02 2006-10-26 Buse de jet pour le rotor d'une centrifugeuse et le rotor d'une centrifugeuse avec tels buse de jet Not-in-force EP1782888B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202005017208U DE202005017208U1 (de) 2005-11-02 2005-11-02 Rückstoßdüse für den Rotor einer Zentrifuge und Rotor mit solchen Rückstoßdüsen

Publications (2)

Publication Number Publication Date
EP1782888A1 EP1782888A1 (fr) 2007-05-09
EP1782888B1 true EP1782888B1 (fr) 2009-08-26

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Application Number Title Priority Date Filing Date
EP06022362A Not-in-force EP1782888B1 (fr) 2005-11-02 2006-10-26 Buse de jet pour le rotor d'une centrifugeuse et le rotor d'une centrifugeuse avec tels buse de jet

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Country Link
EP (1) EP1782888B1 (fr)
AT (1) ATE440667T1 (fr)
DE (2) DE202005017208U1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7713185B2 (en) * 2004-03-17 2010-05-11 Hengst Gmbh & Co., Kg Impulse centrifuge for the purification of the lubricating oil from an internal combustion engine
DE202005020012U1 (de) * 2005-12-22 2007-05-10 Hengst Gmbh & Co.Kg Zentrifuge zum Reinigen einer Flüssigkeit
DE202007008081U1 (de) 2007-06-08 2008-10-23 Hengst Gmbh & Co.Kg Rotor einer Schmierölzentrifuge und Schmutzfangteil für den Rotor
DE202016105409U1 (de) 2016-09-28 2018-01-02 Reinz-Dichtungs-Gmbh Turbine und Flüssigkeitsabscheider mit einer derartigen Turbine

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DE1123625B (de) * 1960-06-18 1962-02-08 Mann & Hummel Filter Fliehkraftreiniger fuer Fluessigkeiten, insbesondere fuer Schmieroel
DE4430751A1 (de) * 1994-08-30 1996-03-07 Mann & Hummel Filter Fluidkreislauf mit einem Hauptstromfilter
DE10111381A1 (de) * 2001-03-09 2002-09-26 Mahle Filtersysteme Gmbh Zentrifuge
US6929596B2 (en) * 2003-02-07 2005-08-16 Fleetguard, Inc. Centrifuge with separate hero turbine
DE202004008785U1 (de) * 2004-06-02 2005-10-13 Hengst Gmbh & Co.Kg Freistrahlzentrifugen für die Reinigung des Schmieröls einer Brennkraftmaschine
DE202004004215U1 (de) * 2004-03-17 2005-07-28 Hengst Gmbh & Co.Kg Freistrahlzentrifuge für die Reinigung des Schmieröls einer Brennkraftmaschine

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DE502006004646D1 (de) 2009-10-08
ATE440667T1 (de) 2009-09-15
DE202005017208U1 (de) 2007-03-22
EP1782888A1 (fr) 2007-05-09

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