EP2222960B1 - Volute hélicoïdale de soufflante avec languette de décharge séparant deux zones de décharge décalées axialement - Google Patents

Volute hélicoïdale de soufflante avec languette de décharge séparant deux zones de décharge décalées axialement Download PDF

Info

Publication number
EP2222960B1
EP2222960B1 EP08852563.9A EP08852563A EP2222960B1 EP 2222960 B1 EP2222960 B1 EP 2222960B1 EP 08852563 A EP08852563 A EP 08852563A EP 2222960 B1 EP2222960 B1 EP 2222960B1
Authority
EP
European Patent Office
Prior art keywords
spiral
impeller
inflow chamber
blower arrangement
inflow
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
EP08852563.9A
Other languages
German (de)
English (en)
Other versions
EP2222960A1 (fr
Inventor
Georg Emanuel Koppenwallner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2222960A1 publication Critical patent/EP2222960A1/fr
Application granted granted Critical
Publication of EP2222960B1 publication Critical patent/EP2222960B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/165—Axial entry and discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
    • F04D29/162—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of a centrifugal flow wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/422—Discharge tongues
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F04D29/4233—Fan casings with volutes extending mainly in axial or radially inward direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F04D29/4253—Fan casings with axial entry and discharge

Definitions

  • the invention relates to a fan arrangement for turbomachines according to the preamble of claim 1.
  • Blower arrangements for turbomachines in particular turbocharged or turbocharged engines are well known. These usually consist of a preferably spiral-shaped housing and at least one impeller housed therein with a plurality of impeller blades, wherein a fluid flows through the housing.
  • a turbocharged engine the energy flow from the fluid to the impeller or its blades and in the case of a turbo-working machine from the impeller or its blades to the fluid takes place here.
  • the fluid may be, for example, water or air.
  • rule 4 for example, a mixture of the fluidic properties according to the rules 1 to 3 can be achieved.
  • the housing it is customary to specify the dimensions of the housing by means of polar coordinates r, ⁇ or cylinder coordinates r, ⁇ , z.
  • the origin of the radial coordinate ⁇ is then the center of the impeller, wherein the zero point of the circumferential position describing ⁇ - coordinate to the beginning of the inflow space, ie preferably the spiral or Abgrifflippe the housing is assigned.
  • volume flow Q ( ⁇ ) conveyed up to the circumferential position ⁇ from the impeller or into the impeller must be adapted to the cross-section A ( ⁇ , r) of the flow channel formed by the housing, with the radial position of the cross section being of particular importance in addition to the cross-sectional area ,
  • the width of the cross section A ( ⁇ , r) at the radius position r is understood by b (r).
  • the volume flow Q ( ⁇ ) thus depends on the inflow or conveying surface A LR ( ⁇ ) of the impeller up to the circumferential position ⁇ .
  • an envelope shape for example an envelope cylinder, is placed around the impeller. It is often assumed that the volume flow Q ( ⁇ ) is proportional to this area, ie proportional to the circumferential angle ⁇ .
  • a housing or a housing arrangement in this case usually has flow channels with simple cross sections such as circle, rectangle, trapezium, etc., which form a spiral shape for guiding the fluid in the housing over the circumference of the impeller.
  • This is the basis of the common name "spiral blower” or fan coil.
  • the tapping of the flow takes place via a so-called spiral lip or spiral tongue, which is provided for the separation of the outflow from the inflow space.
  • the fluid in particular the air, flows radially or tangentially outward perpendicular to the axis of rotation of the impeller.
  • DE 19811877 C2 For example, an axial outflow of the fluid, which, however, associated with high flow losses.
  • the spiral lip or spiral tongue runs parallel to the axis of rotation and often parallel to the outer edges of the blades of the impeller.
  • the disadvantage of the emerging from the channels formed by the blades of the impeller fluid during periodic impingement on the spiral lip or spiral tongue a generate whistling noise.
  • the document DE 310721 already an inclination of the blade edges with respect to the tapping lip.
  • the publication DE 4313617 is to take a sloping tap lip, and indeed the tapped air extends radially outwardly offset over the beginning of the spiral housing.
  • the document describes DE 43 31 606 a volute casing for turbomachinery in which the tongue region adjoining region has circular spiral cross sections until reaching a predetermined outer diameter. After reaching the spiral cross-section increases only in the axial direction. In two fixed semicircles a magnifying rectangle is inserted for this purpose.
  • the connection of a spiral casing with swirl describes Bruno Eck in “Fans”, Springer Verlag, 5th edition, 1972, p 221 as an "asymmetrical spiral” to Oesterlein.
  • the design of the housing depends on the impeller outlet.
  • the publication describes US 5156524 a box spiral with discontinuities, in which the axial and radial dimensions of the spiral have cracks or inflection points in the contour.
  • the publication describes Bruno Eck in “Fans”, Springer Verlag, 5th edition, 1972, p. 212 a volute that is developed inwardly such that the radial coordinates of the cross section are in part smaller than the exit radius of the impeller.
  • the pamphlets DE1428191A1 and US2405048A1 disclose blowers having a volute casing in which the wall immediately adjacent to the tapping lip separates two flow-through spaces which are axially offset from each other so as to overlap one another in the region of said wall in the axial direction.
  • the said wall deflects the flow in the axial direction, that is, the wall runs simultaneously in the circumferential direction and axially.
  • the present invention seeks to provide a blower arrangement which eliminates the aforementioned disadvantages and in particular improves the introduction of the flow from the impeller into the collecting housing.
  • the object is achieved on the basis of the features of the preamble of claim 1 by its characterizing features.
  • the essential aspect of the invention is to be seen in that the first inflow space and the second inflow space are separated from one another via at least one housing wall section, that the outer edge of the at least one housing wall section facing the impeller forms a tapping lip and that the housing wall section extends in the direction of the inflow chambers and has at least one radial component.
  • the spiral tap thus runs obliquely to the axis of rotation of the impeller, wherein the tap portion forming the wall portion of the spiral tap radially or radially Component to the outside, ie in the direction of the inflow space before they pass into the collection housing or in the outflow.
  • the first inflow space and the second outflow space are at least partially offset axially relative to one another with respect to the axis of rotation and overlap at least partially in the area of the impeller.
  • the first inflow space is gradually widened at the expense of the second inflow space, wherein the second inflow space can already form the outflow space of the spiral blower.
  • the impeller thus promotes full width into the first inflow space, while the delivery into the second inflow space or outflow space is completed.
  • the second inflow space or outflow space is at this point or circumferential position to the outlet channel and is then axially offset next to or radially offset from the first inflow space.
  • the inventive design of the spiral tap for the separation of the two inflow spaces or of the inflow and outflow space will be referred to below as Schräglippenabgriff.
  • the transition region described can also be provided to form a deflection region for a flow in the axial direction.
  • the second inflow space forms, at least in sections, the outflow space for discharging the volumetric flow conveyed from the first inflow space through the volute casing.
  • the incipient first inflow space of the one volute casing lies next to the second inflow space or the outflow region of the second volute casing.
  • the transition regions may be different obliquely to each other, ie ⁇ 1 ⁇ ⁇ 2. It is also possible to connect the bevel lip tap with a normal spiral tap. The change from the first inflow space to the second inflow space or outflow space then takes place abruptly.
  • the volumetric flow in a spiral with an oblique tap does not increase linearly in the transitional range ⁇ , but depending on the course of the transition curve between inflow and outflow space, which in the simplest case is a straight line on a cylinder surface ("enveloping cylinder around the impeller").
  • This delivery volume flow Q ( ⁇ ) corresponds to a specific passage area of the volute casing A S ( ⁇ ) depending on the development rule for the speed. From the necessary surface then the geometric dimensions of the cross section can be determined.
  • a delivery volume flow Q ( ⁇ ) can also be specified, and thus the circumferential position ⁇ can be determined. Furthermore, it may prove expedient to change the contour of the spiral cross-section along the circumferential coordinate ⁇ .
  • a S ( ⁇ ) of the cross-section of the flow channel is constructed within the fan assembly of analytically controllable sub-elements, such as rectangles, triangles, trapezoids, semicircles and quadrants.
  • the exponent can be any real number> 0.
  • the tangency hyperbolic function can be used as the weighting function.
  • transitions between the regions can also take place in the same way as in the strake plan for the ribs of a boat hull, the respective cross sections being subjected to the respective development rules for the contour and the transition regions simply being traversed. Very locally arise thus slightly deviate from the development rules cross sections, see also US 5156524 , As a result, edges can be sanded at unsteady points advantageous.
  • the corresponding volume flow of the respective cross-sections also numerically calculable and assign the angular position of the corresponding volume flow from the impeller.
  • the invention is of course also applicable to wheels whose shape deviates from the cylindrical shape, for example, frustoconical wheels or Impellers with almost any rotational body shape.
  • wheels whose shape deviates from the cylindrical shape, for example, frustoconical wheels or Impellers with almost any rotational body shape.
  • the spatial surface of the respective envelope shape at the exit position is required for fixing the associated spiral cross-section.
  • FIG. 1a shows, for example, a simple, known from the prior art fan assembly with a housing 20 in which an impeller 10 is received.
  • the impeller 10 is in this case rotatably mounted about a rotation axis 90, wherein the housing 20 surrounds the axis of rotation 90 spirally and thus forms a spiral housing 20 with a Abgriffslippe 30.
  • the impeller 10 has a plurality of impeller blades 12 which are arranged concentrically around the rotation axis 90 and whose free blade end faces each preferably have the same distance from the axis of rotation 90.
  • the contour of the spiral-shaped housing 20 is determined, for example, especially for rectangular spirals by the ratio of the absolute speeds C M / C U.
  • Fig. 1b further shows a side view of the fan assembly along the section axis AA. From this, the parallel course of the "normal" Abgrifflippe 30 to the fan axis or axis 90 of the impeller 10 is clear.
  • FIG. 2a an exemplary embodiment of a blower arrangement according to the invention is shown by way of example, the spiral housing 20 of which has a tap lip 40 running obliquely to the axis 90, which is referred to below as an oblique lip 40.
  • Fig. 2c is the development of the cross section 50 of the outflow space 80 adjacent to the widening Inflow space 60 shown.
  • the inflow space 60 and the outflow space 80 thus directly adjoin the free blade end faces of the impeller 10 in the region of the oblique lip 40, specifically in the radial direction relative to the axis of rotation 90.
  • the inflow space 60 and the outflow space 80 thus overlap at least in the region of the tapping lip 30 and are separated by the adjoining the spiral tap housing wall portion with radial direction component.
  • the described Abgriffssection will be referred to below as Schräglippenabgriff.
  • Fig. 2d shows a plan view of a development 105 of the surrounding the impeller 10 Hüllzylinders.
  • the angle ⁇ of the oblique lip 40 can be adapted, for example, to the angle ⁇ 'between the axial intake speed V AX and the absolute speed C at the exit from the impeller 10.
  • Fig. 3a shows by way of example an impeller 10 with the associated envelope shape, for example, an enveloping cylinder 100, with different developments 110 to 170.
  • the unwinds 110 to 170 of the enveloping cylinder 100a hereby have different Abgriffsvarin, namely normal tap 110, oblique tap 120, slightly more curved Tap 130, Ausströmraumtrennung 140, two variants of the Einströmigen Schräglippenabgriffes 150a, b, two variants of the two-prong Schräglippenabgriffes 160a, b and a dreiströmigen oblique lip tap 170 with outflow to two sides.
  • Fig. 3b shows a further, preferably wider embodiment of the enveloping cylinder 100, which can be used for example for a drum rotor 11 and, for example, three bevel lip taps 161, 151, 152.
  • the top view of the impeller 11 forming the impeller reveals that the motor 13, the drum rotor 11 in two areas 15 a, b divides. This is a typical one Design of a fan assembly for suction devices such as cooker hoods.
  • the two regions 15a, b find their continuation in the development of the enveloping cylinder 161.
  • the transition region 45a of the oblique lips 40a, b extends over 180 ° and is in the Fig. 3b to the right of the 360 ° point, again by means of a dotted line.
  • the transition region 45b extends for example over 360 ° or over 720 °.
  • Fig. 3c shows the unwinds 171, 172, 173, in which the enveloping cylinder is divided by way of example into four lip channels.
  • a selected lip channel 177a, b, c per unwinds 171, 172, 172 is shown in FIG Fig. 3c each hatched.
  • the outflow 49c, 49d, 49e takes place here, for example, obliquely to the unwinding 171, 172 or in the longitudinal direction to the unwinding 173, wherein the lip channels 177a, b, c each extend over 270 °, for example.
  • Fig. 3d shows a schematic representation of the principle of the assignment of angular position ⁇ , lip channel area A LR ( ⁇ ) and channel cross-section 185 at the respective angular position ⁇ .
  • the cross section 185 at the circumferential position ⁇ is chosen such that the also in Fig.
  • Fig. 4 shows, for example, the construction of different cross-sections of the spiral channels of the fan assembly, in particular a push fan by means of simple geometric primitives such as rectangle 180, quadrant 190, triangle 185, semicircle 200, semi-ellipse 210.
  • the cross section can also be designed as a free-form 240, wherein between the inlet space 220 from the impeller 10 and the axially offset outflow space or channel space 230a, b, a guide pin 250 is provided.
  • FIGS. 5 to 11 each embodiments of the housing arrangement according to the invention for a pusher fan shown.
  • the spiral-shaped housing is in this case, for example, impressströmig and consists for example of two half-spirals.
  • the two spiral halves are therefore identical.
  • Fig. 5 shows a method for developing the cross sections of a spiral half in the first to fourth region 1, 2, 3, 4 based on exemplarily selected cross sections (see hatched shapes) along the development of the enveloping cylinder 270 of width b LR over a circumferential range of ⁇ from 0 ° to 220 °.
  • the fourth region 4, 290 in which the outflow from the half-spiral takes place, is arranged axially offset next to the first region 1, 280.
  • Fig. 6 shows in an enlarged view the development of the cross sections 320a-e in the fourth region 4, 290 and Fig. 7 a variant of the fan assembly in which the Outlet channel 300 is deflected in the axial direction, by rotation of the cross-sections 320 ae in the fourth region 4 with increasing circumferential position ⁇ in the axial direction 310.
  • a Entdraller 330 is provided by means of the flow energy can be recovered.
  • FIGS. 8a to 8h are the rules underlying the development of the training in FIGS. 5 and 6 illustrated cross sections illustrates.
  • FIG. 8a shows the first area 1, in which the inflow takes place in the half-spiral.
  • a rectangular shape of width b ( ⁇ ) and height r H1 ( ⁇ ) is developed.
  • each side of the rectangle section with the radius r K are added, wherein the axial width of the rectangle corresponds to the width b LR .
  • r K ( ⁇ ), r H2 ( ⁇ ) and r HE ( ⁇ ) may vary depending on the particular embodiment, such as the diagram in FIG Fig. 8d can be seen.
  • the third area 3 is in Fig. 8e, f shown.
  • the radius of curvature r K ( ⁇ ) continues to increase until the outflow space reaches the fourth region 4.
  • the outlet cross section is in accordance with FIG. 8h a circle.
  • a section along the line AA through a double spiral housing 340 at the end of the third region 3 is shown.
  • the cross section of the respective spiral of the double spiral housing 340 is composed radially outside the impeller 10 from the quarter circles 190 and the rectangle 180.
  • Radially in the region of the impeller 10 is the semicircular cross-section 200, so that an entire cross section of the mold 260 is established.
  • FIG. 10 A perspective sectional view through the fan assembly with a double spiral shows, for example FIG. 10 , along the section line AA according to Fig. 9 ,
  • the impeller 10 is rotatably supported by a bearing 360 in the double spiral housing 340.
  • the the FIG. 10 Removable cross-sectional shapes correspond to the cross-sections at the end of the third region 3, in the upper and lower spiral 260a, b.
  • a top view of the in FIG. 10 shown blower arrangement is in FIG. 11 shown.
  • the medium is supplied to the impeller 10, wherein the discharge of the medium via the two outlet channels 300a, b of the upper and lower spiral 260a, b takes place.
  • the plan view of the transition region between the first region 1, 380 and the fourth region 4, 390 can be seen, wherein the course of the oblique lip between the first and fourth region 1, 380 and 4, 390 is provided with the symbol 370.
  • the in Fig. 10 and Fig. 11 shown blower arrangement is suitable to use a single or multi-flow pusher fan for a jet sail according to DE 10300621 build.
  • an S-shaped intake passage 350 could be provided to generate a pre-puff.
  • Fig. 12 1 shows the development of the enveloping cylinder 440 a of a two-column blower arrangement, which is subdivided into a small secondary flow area 400 and a main flow area 410.
  • the blower arrangement conveys at the outlet 450 for the secondary flow the volume flow Q N and at the outlet for the main flow 460 the volume flow Q H.
  • the fan assembly further includes two oblique lips 420 and 430, which have a different oblique course, which include a different angle with the axis of rotation 90 of the impeller 10.
  • the tap of the main volume flow and the shift in the axial direction in the bevel lip tap starts at position 470 and is completed at position 480. This type of tap corresponds to the position 490 of the cross section 500.
  • the cross section 510 is formed at the position 490.
  • the inflow cross section 520 extends almost over the entire width of the enveloping cylinder b LR .
  • the separation of inflow cross section 520 and outflow cross section 530 thus extends in the axial and radial directions.
  • the cross section 550 is required at the position 490.
  • Fig. 13 shows a side and end view of the fan assembly with the cross sections according to Fig. 12 ,
  • the two outlets of the secondary flow 450 and the main flow 460 are offset by 90 ° to each other and are each arranged axially offset from the impeller 10.
  • FIG. 14 The development of an enveloping cylinder 440b which is subdivided into a conveying region 580 for the main stream and into a further conveying region 590 for two secondary streams 560a, b is, for example, the Fig. 14 refer to.
  • the beginning of the inflow of the main volume flow into the region 580 or the outflow from the further delivery region 590 into the two bypass channels 610a, b takes place via two obliquely arranged oblique lips 600a, b.
  • the tap of the main flow or the inflow into the further conveyor region 590 begins with a normal spiral tap 570.
  • a side view and an end view of a fan assembly according to FIG. 14 are in Fig. 15 shown. From this, the outwardly extending bypass channels 610a, b and the main flow channel 620 can be clearly seen.
  • Fig. 16 shows a fan assembly 630 with a in the FIGS. 12 to 15 shown tapping, which is integrated in a suction device 640 with blowout 650, preferably an extractor hood.
  • a rising from a cooking fume stream W is sucked through a filter 641 in the extractor hood 640.
  • the blower arrangement 630 generates the vacuum required for this in a suction chamber 642 of the extractor hood 640.
  • the blower arrangement 630 conveys the main part of the filtered steam stream W as the main stream Q H into an exhaust duct 644 arranged in a chimney 643.
  • a small part of the filtered steam stream W can be used as a side stream Q N are specifically directed out of the housing of the hood 640 back into the room to produce, for example, an air curtain or a front vortex Q F.
  • Fig. 17a is the development of the enveloping cylinder 162 of a double-flow bevel fan according to Fig. 3b shown schematically.
  • Fig. 17a shows by way of example a plurality of spiral cross sections 660a-q, wherein the cross sections 660c '- 660h or 660n - 660p the transition regions ⁇ ' in section 666 and ⁇ "in excerpt 667 are shown enlarged at least partially bug-like recesses 665 to reduce the size.
  • the spiral may also extend beyond the width 668 of the enveloping cylinder, as indicated by the bone-shaped cross-section 661. This could for example be provided instead of the cross section 660l.
  • FIGS. 17b to 17d In each case, a section of the transition region between a first inflow space and a second inflow space or outflow space is shown, which are separated from one another via the oblique lip 40 and the adjoining housing wall section 760a.
  • FIGS. 17b to 17d several variants of the cross section 660b, 662a, 662b of the first inflow space shown.
  • the impeller 10 rotatably mounted about the axis 90 conveys with the impeller blades 12 into the beginning first inflow space 660b, 662a, 662b and into the starting outflow space 660m ', 660m ", 660m"'.
  • the adjoining the oblique lip 40 housing wall portion 760a in the transition region between the inflow and outflow with respect to the housing extends in the radial direction 17, and that includes an angle ⁇ smaller than 90 ° with the axis of rotation 90 a.
  • the housing wall portion 760a of the oblique lip 40 at the cross section 660b at an angle ⁇ of 90 ° to the surface of the enveloping cylinder 162 and the axis of rotation 90.
  • the radial orientation, ie the angle ⁇ along the oblique lip 40 with the circumferential angle ⁇ change.
  • Fig. 17c . d Furthermore, alternative embodiments of the housing wall section 760b, c can be seen, which are characterized by a strong orientation in the radial direction, ie, have an angle ⁇ smaller than 90 °.
  • the housing wall portion 760c of the tapered lip 40 may also have a free-formed curvature (see cross-section 662b), such as a Bezier curve. This shape can extend over the entire transitional range ⁇ of the oblique lip 40 and change comparable to a ship's bow along the circumference, which is why this Embodiment should also be referred to as a bow spiral.
  • the radial orientation gradually changes due to the curvature.
  • the two inflow spaces or the inflow and outflow space are thus offset both axially and radially relative to each other.
  • Fig. 18a shows a helical spiral according to Fig. 3c , in a schematic plan view.
  • four lip channels 690 a to d are preferably arranged, whose cross sections 680 c, e, f are shown by way of example at the edge of the helical spiral.
  • a development of the enveloping cylinder 171 of the helical spiral is exemplified in FIG. 18b shown.
  • Lip channel 690a between points A, B, C, D is shown with the associated channel cross-sections 680a-f.
  • the inflow 700 of the fluid from the impeller 670 in the lip channel 690a and the outflow 710 from the lip channel extends obliquely to the settlement.
  • FIGS. 18a, b shown blower arrangement shows Fig. 19a .
  • the single-flow impeller 670 is connected to a motor 720.
  • the flow Upon exiting the volute, the flow enters an annular diffuser 740 which reduces the cross-section to the exit area 750.
  • the central outflow cone 730 can be fixed or rotate connected to the motor.
  • Fig. 19b shows here the spatial course of the lip channel 690a and the connecting lines between the points A, B, C, D.
  • the outflow in this example corresponds to that of an axial blower, so that the methods known there for the rectification and the Entdrallung the flow are applied can.
  • Means of the invention Schräglippenabgriff a guidance of the fluid is avoided in a narrow peripheral area, whereby the noise level of the suction device, in particular a cooker hood can be significantly reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (11)

  1. Système de soufflante pour des turbomachines se composant d'au moins un carter hélicoïdal (20) et d'au moins un rotor (10) avec des faces avant d'aube reçu dans le carter hélicoïdal (20) et disposé en rotation sur un axe de rotation (90), sachant que le carter hélicoïdal (20) présente au moins un premier espace d'admission (60, 280) et au moins un second espace d'admission (50, 290), sachant que le premier espace d'admission (60, 280) et l'au moins un second espace d'admission (50, 290) sont séparés l'un de l'autre par au moins un tronçon de paroi de carter (760a - 760c), sachant que l'arête extérieure orientée vers le rotor (10) de l'au moins un tronçon de paroi de carter (760a - 760c) forme une lèvre de prise (40), sachant que le tronçon de paroi de carter (760a - 760c) s'étend en direction des espaces d'admission (50, 290) et sachant que le premier espace d'admission (60, 280) et le second espace d'admission (50, 290) sont décalés axialement entre eux au moins par tronçons par rapport à l'axe de rotation (90), sachant que le premier espace d'admission (60, 280) commençant et le second espace d'admission (50, 290) terminant se superposent au moins partiellement au niveau du tronçon de paroi de carter (760a - 760c) et le tronçon de paroi de carter (760a - 760c) présente au moins une composante radiale (17, 310), sachant que le premier espace d'admission (60, 280) et le second espace d'admission (50, 290) sont décalés radialement entre eux par rapport à l'axe de rotation (90), caractérisé en ce que le second espace d'admission (50, 290) forme, au moins par tronçons, l'espace d'évacuation pour évacuer le débit volumique amené par le premier espace d'admission (60, 280) à travers le carter hélicoïdal (20), sachant que le premier espace d'admission (60) et l'espace d'évacuation (80) se raccordent directement sur les faces avant d'aube libres du rotor (10) au niveau de la lèvre de prise (40), et ce en direction radiale par rapport à l'axe de rotation (90).
  2. Système de soufflante selon la revendication 1, caractérisé en ce que le tronçon de paroi de carter inclut un angle (y) inférieur à 90° avec l'axe de rotation (90).
  3. Système de soufflante selon la revendication 2, caractérisé en ce que l'angle (y) varie le long de la lèvre de prise (40), forme en particulier un tronçon de paroi de carter (760a - 760c) en forme d'étrave.
  4. Système de soufflante selon l'une des revendications 1 à 3, caractérisé en ce qu'en plus de la lèvre de prise (420, 430, 600a, b) en biais par rapport à l'axe de rotation (90), une autre lèvre de prise (550, 570) de préférence parallèle à l'axe de rotation (90) est prévue.
  5. Système de soufflante selon l'une des revendications 1 à 4, caractérisé en ce que la turbomachine est conçue mono-courant ou multi-courants et/ou mono-flux ou multi-flux.
  6. Système de soufflante selon l'une des revendications 1 à 5, caractérisé en ce que l'écoulement de sortie (49a - e, 710) s'effectue dans le sens (49a, b, e) axial, radial et/ou tangentiel.
  7. Système de soufflante selon l'une des revendications 1 à 6, caractérisé en ce que le premier espace d'admission (60, 280) et le second espace d'admission (50, 290) présentent une forme de section transversale différente en fonction de la position du pourtour (ϕ) et/ou que le rotor employé est un rotor à tambour (11) et/ou que le carter hélicoïdal (20) présente au moins un dispositif de dégyration (330, 740).
  8. Ventilateur de poussée pour un véhicule, particulièrement un voilier comprenant un système de soufflante selon l'une des revendications précédentes.
  9. Ventilateur de poussée selon la revendication 8, caractérisé en ce que le débit volumique produit par le système de soufflante est prévu au moins partiellement pour aspirer la couche limite et/ou que le système de soufflante présente une arrivée (350, 355) comprenant un dispositif pour produire un tourbillon à l'entrée.
  10. Dispositif d'aspiration, en particulier hotte (640) comprenant un système de soufflante selon l'une des revendications 1 à 7.
  11. Dispositif d'aspiration selon la revendication 10, caractérisé en ce que le système de soufflante (630) présente une hélice d'étrave ou une spirale d'hélice et/ou que le débit volumique produit par le système de soufflante (630) est prévu est prévu au moins partiellement pour aspirer la couche limite.
EP08852563.9A 2007-11-21 2008-11-21 Volute hélicoïdale de soufflante avec languette de décharge séparant deux zones de décharge décalées axialement Not-in-force EP2222960B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007055507A DE102007055507A1 (de) 2007-11-21 2007-11-21 Schräglippenspirale
PCT/DE2008/001925 WO2009065394A1 (fr) 2007-11-21 2008-11-21 Système de soufflante pour turbomachines

Publications (2)

Publication Number Publication Date
EP2222960A1 EP2222960A1 (fr) 2010-09-01
EP2222960B1 true EP2222960B1 (fr) 2015-03-18

Family

ID=40473470

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08852563.9A Not-in-force EP2222960B1 (fr) 2007-11-21 2008-11-21 Volute hélicoïdale de soufflante avec languette de décharge séparant deux zones de décharge décalées axialement

Country Status (3)

Country Link
EP (1) EP2222960B1 (fr)
DE (1) DE102007055507A1 (fr)
WO (1) WO2009065394A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016010216A1 (de) 2016-08-22 2018-03-22 Georg Emanuel Koppenwallner Schubklappe für ein Segelflugzeug, Luftfahrzeug oder Bodeneffektfahrzeug

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010023017A1 (de) 2010-06-08 2011-12-08 Georg Emanuel Koppenwallner Buckelwalgebläse, Verfahren zur örtlichen Verbesserung der Strömung bei Strömungsmaschinen und Fahrzeugen
JP5433560B2 (ja) * 2010-12-27 2014-03-05 三菱重工業株式会社 タービンスクロール部構造
WO2016147032A1 (fr) * 2015-03-13 2016-09-22 Vata Korkut Système rotatif à nombre ultra-élevé de tours/minute pour une propulsion dans le vide d'espace
CN109642585A (zh) * 2016-09-02 2019-04-16 惠普发展公司， 有限责任合伙企业 用于降噪的风扇壳体
DE102017217759B3 (de) 2017-10-06 2019-03-28 Ford Global Technologies, Llc Aufgeladene Brennkraftmaschine mit Abgasturbolader und elektrisch antreibbarem Verdichter

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE319721C (de) * 1920-03-15 Ludwig Hartwagner Fliehkraftluefter mit Schneckengehaeuse
DE310721C (fr)
DE469827C (de) 1924-03-05 1928-12-27 Wilhelm Beck Dipl Ing Kreiselpumpe oder -geblaese
US2405048A (en) * 1944-11-18 1946-07-30 Gen Electric Centrifugal compressor
US3243102A (en) * 1963-12-20 1966-03-29 Kenton D Mcmahan Centrifugal fluid pump
DK118475B (da) * 1965-08-02 1970-08-24 Nordisk Ventilator Radialventilator med axial udstrømning.
DE3028606A1 (de) * 1980-07-28 1982-03-04 Wilhelm Gebhardt Gmbh, 7112 Waldenburg Zum einbau in rohrleitungen, kanaele oder kanalaehnliche gehaeuse bzw. in lueftungs- und klimageraete bestimmte ventilatoreinheit
JPS57181999A (en) * 1981-05-01 1982-11-09 Mitsubishi Heavy Ind Ltd Turbo machine
JPS58117393A (ja) * 1981-12-31 1983-07-12 Matsushita Electric Ind Co Ltd 送風機
DE3706772A1 (de) * 1987-03-03 1988-09-15 Gebhardt Gmbh Wilhelm Ventilatoreinheit und verfahren zur herstellung der leitschaufeln einer solchen ventilatoreinheit
US5156524A (en) 1990-10-26 1992-10-20 Airflow Research And Manufacturing Corporation Centrifugal fan with accumulating volute
DE4313617C2 (de) 1993-04-26 1996-04-25 Kreis Truma Geraetebau Radialgebläse
DE4331606C1 (de) * 1993-09-17 1994-10-06 Gutehoffnungshuette Man Spiralgehäuse für Turbomaschinen
DE19811877C2 (de) 1998-03-18 2001-09-13 Motoren Ventilatoren Gmbh Radiallüfter
DE19957962B4 (de) 1999-05-19 2009-01-29 Röhl-Hager, Hannelore Verfahren und Einrichtung zum Eingrenzen, Erfassen und Absaugen von fluiden Medien
FR2825142B1 (fr) * 2001-05-22 2003-08-29 Conseils Etudes Et Recherches En Gestion De Lair Cerga Ventilateur destine a etre associe a un conduit d'evacuation d'air hors d'au moins un local
DE10300621B4 (de) 2003-01-10 2008-08-21 Georg Emanuel Koppenwallner Strahlantriebsverfahren z.B. für ein Segelflugzeug
DE102004024392A1 (de) 2004-05-17 2005-12-08 Institut für Leistungselektronik und Regelungstechnik Universität Stuttgart Supraleitende Wechselstromwicklung für elektrische Maschinen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016010216A1 (de) 2016-08-22 2018-03-22 Georg Emanuel Koppenwallner Schubklappe für ein Segelflugzeug, Luftfahrzeug oder Bodeneffektfahrzeug

Also Published As

Publication number Publication date
DE102007055507A1 (de) 2009-06-04
WO2009065394A1 (fr) 2009-05-28
EP2222960A1 (fr) 2010-09-01

Similar Documents

Publication Publication Date Title
DE69114647T2 (de) Axialströmungsgebläse.
EP2222960B1 (fr) Volute hélicoïdale de soufflante avec languette de décharge séparant deux zones de décharge décalées axialement
DE102007056953B4 (de) Strömungsarbeitsmaschine mit Ringkanalwandausnehmung
DE102008011645A1 (de) Strömungsarbeitsmaschine mit Rotoren mit niedrigen Rotoraustrittswinkeln
EP1508669A1 (fr) Diaphragme pour compresseur et turbine
DE102011017419A1 (de) Ablenkeinheit für eine Gasströmung in einem Kompressor und Kompressor, der diese enthält
WO2007141160A1 (fr) Conduit d'écoulement annulaire pour une turbomachine pouvant être traversée par un courant principal dans le sens axial
EP2881548B1 (fr) Compresseur de turbine à gaz
WO2019063384A1 (fr) Diffuseur pour compresseur
CH710476A2 (de) Verdichter mit einer Axialverdichterendwandeinrichtung zur Steuerung der Leckageströmung in dieser.
DE2632155B2 (de) Gasturbinenstrahltriebwerk
EP3568597B1 (fr) Étage de recirculation et turbomachine à énergie fluidique radiale
DE102015111746A1 (de) Gekühltes Turbinenlaufrad, insbesondere für ein Flugtriebwerk
EP3682119A1 (fr) Diffuseur pour compresseur radial
EP1865148B1 (fr) Machine de traitement des écoulements dotée de rotors de distribution d'énergie supérieure spécifique
DE102016203305A1 (de) Rückführstufe, Radialturbofluidenergiemaschine
DE102015014900A1 (de) Radialturbinengehäuse
WO2023078701A1 (fr) Compresseur radial
DE102017114007A1 (de) Diffusor für einen Radialverdichter
DE102009012132A1 (de) Abgasturbine mit einer verstellbaren Leitschaufel
DE112020005576T5 (de) Spiralgehäuse und zentrifugalverdichter
DE102019213932B4 (de) Verdichterstufe mit variabler Statorschaufelneigung
DE202018101699U1 (de) Turbine mit Verstellring
WO2019034313A1 (fr) Turbine semi-axiale pour turbocompresseur à gaz d'échappement
DE102008039285A1 (de) Verdichter für eine Brennkraftmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20100322

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20111003

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20141017

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 716771

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150415

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502008012789

Country of ref document: DE

Effective date: 20150430

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20150318

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20150318

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150618

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150619

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502008012789

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150720

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150718

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008012789

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

26N No opposition filed

Effective date: 20151221

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151121

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20151121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151130

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151130

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160729

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151121

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151130

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 716771

Country of ref document: AT

Kind code of ref document: T

Effective date: 20151121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20081121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150318

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20171130

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502008012789

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190601