CN102138005A - Rotor for a radial machine - Google Patents

Rotor for a radial machine Download PDF

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Publication number
CN102138005A
CN102138005A CN2009801335014A CN200980133501A CN102138005A CN 102138005 A CN102138005 A CN 102138005A CN 2009801335014 A CN2009801335014 A CN 2009801335014A CN 200980133501 A CN200980133501 A CN 200980133501A CN 102138005 A CN102138005 A CN 102138005A
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CN
China
Prior art keywords
runner
conveying blade
wheel disc
section
disc
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.)
Pending
Application number
CN2009801335014A
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Chinese (zh)
Inventor
M·舍尔茨
J·施内普夫
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.)
Duerr Dental SE
Original Assignee
Duerr Dental SE
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 Duerr Dental SE filed Critical Duerr Dental SE
Publication of CN102138005A publication Critical patent/CN102138005A/en
Pending legal-status Critical Current

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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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • 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
    • F04D29/02—Selection of particular materials
    • F04D29/026—Selection of particular materials especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/60—Assembly methods
    • F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/17—Alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/17—Alloys
    • F05D2300/171—Steel alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/17—Alloys
    • F05D2300/173—Aluminium alloys, e.g. AlCuMgPb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/17—Alloys
    • F05D2300/174—Titanium alloys, e.g. TiAl
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
    • F05D2300/603—Composites; e.g. fibre-reinforced

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

Abstract

The present invention relates to a rotor for high-speed radial machines, comprising two wheel discs (10, 16) and a feed vane unit (20) held in a sandwich-like manner between said wheel discs (10, 16). Said feed vane unit (20) comprises a hub part (22) and curved feed vanes (30). The two wheel discs (10, 16) and the feed vane unit (20) are fixedly connected by means of a multiplicity of rivets (44).

Description

The runner that is used for radial-flow type machinery
Technical field
The present invention relates to a kind of runner that is used for radial-flow type machinery/centrifugal machine as described in the preamble according to claim 1.
Background technique
Known this runner is as the parts of centrifugal pump or radial compressor.This runner is integrally manufactured mostly, so that guarantee that runner keeps together reliably under--what particularly runner will bear in compressor--high-revolving situation.
But runner integrally manufactured makes the geometrical construction of runner form boundary conditions, and this boundary conditions is always unsuitable aspect liquidity ratio/stream condition.Problem with the surface Machining of the contacted runner face that flows also can appear when the integrally casting runner.In addition, the shortcoming of runner integrally formed or that produced by cutting by solid (material) is that this runner has higher weight and bigger rotary inertia.Its manufacture cost is very high usually.
Summary of the invention
Therefore the objective of the invention is: so improve runner as described in the preamble according to the present invention, make the free and accurate structure that can realize the flowing activity face according to claim 1, and manufacture instinct remain suitable.
According to the present invention, described purpose realizes by the runner with the feature that provides in claim 1.
Runner according to the present invention comprises two parts, and these two parts have very the simple geometric shape and can make simply: these two wheel discs can be obtained by laser beam machining, water jet cutting or machine cuts simply by plate.
This plate is original just to have had very level and smooth surface of contact.
The original conveyor surface that is positioned on the conveying blade that separates with wheel disc can be made in simple mode by the forming without stock removel of each conveying blade.This forming without stock removel can be realized by casting, forging or other forming process of not having cutting, wherein carry fin disposable realization can obtain very complex surfaces geometrical construction after producing applied shape, and can not produce expensive.Situation is especially true when carrying fin by plastic pouring or injection moulding.
Because wheel disc and conveying blade are selected as the parts that separate, so can also select such material for conveying blade, promptly this material itself has little weight and/or has the hollow cavity structure, and then cause the little rotary inertia of runner, because the basic mechanical strength of runner is guaranteed by wheel disc.
Carry fin to be connected with two wheel discs by linkage structure, these two wheel discs are basic elements of character of the energy machinery carrying of runner.Each carries fin only need have the stability of following degree, and promptly this conveying fin can not be out of shape and can bear centrifugal force during at given rotating speed when given flowing velocity owing to the fluid of being carried.
Carry the assembling of fin and wheel disc can be automatically, cost advantageously realizes.
Therefore, can realize carrying the geometrical shape that in wide in range scope, freely to select of fin with very low cost according to runner of the present invention.This runner has only very little quality.Its structure in the axial direction is also very compact.
Favourable improvement project of the present invention provides in the dependent claims.
The linkage structure that provides in claim 2 makes also can will carry fin to be fixed on the wheel disc reliably in simple mode when high rotating speed.
The advantage of the improvement project according to claim 3 of the present invention is: the good efficiencies of runner aspect flowing.
Improvement project according to claim 4 of the present invention is used for advantageously guiding fluid and avoiding vortex in the outside end that is arranged in diametrically of carrying fin at runner.
The advantage of the improvement project according to claim 5 of the present invention is: carry the quality of fin to keep very little.
The advantage of the improvement project according to claim 6 of the present invention is: it is simple to carry fin to install.
In runner according to claim 7, the wheelboss part of carrying fin to keep together is used as the guide element that guides fluid at the inlet side of runner simultaneously.
Improvement project according to Claim 8 of the present invention is being favourable aspect the fluid that conveying is transferred as far as possible effectively, because fluid has begun the radially outward motion in the space of being defined by inlet connection.
The advantage of the improvement project according to claim 9 of the present invention is: the good geometrical stability of temporary location when high rotating speed that the passing through of runner carries fin and wheelboss part to form.
Of the present inventionly also be used to improve the efficient of runner according to the improvement project of claim 10, (as what produced by the machine part of fixing machine part and rotation opposed) maintenance is very little because the fluid short circuit from the inlet side of runner to outlet side.
According to claim 11, the simple geometric structure of clearance seal portion has just been guaranteed the good result of clearance seal (portion).
The material that is used for wheel disc that provides in claim 12 and the setting of thickness are particularly suitable for purpose of the present invention.
Similarly, claim 13 provides the material that is particularly suitable for making conveying blade.
Improvement project according to claim 14 of the present invention relates to the material that is particularly well suited to rivet bar, wherein carries fin to utilize described rivet to fixedly connected with wheel disc.
According to claim 15, runner can especially simply be installed on the live axle.Owing to only have an installation position, the installation of runner on live axle is not overcritical to temperature variation.
Utilize the improvement project according to claim 16 of the present invention, can obtain the good two supports of live axle.Live axle is the dead zone body simultaneously, and this dead zone body is filled the core of runner and stoped fluid to enter thus, and centrifugal force is very little there.
The advantage of the improvement project according to claim 17 or 18 of the present invention is: good force closure simple and between linkage structure and conveying blade is installed.
The advantage of the improvement project according to claim 19 of the present invention is: the fluid that is sucked is advantageously turning to aspect flowing.
Description of drawings
Be described in detail with reference to the attached drawings the present invention by embodiment below.In these accompanying drawings, illustrate with the different ratio of part:
Fig. 1 illustrates the exploded view of the runner that is used for high speed radial-flow type sucking machine/centrifugal sucking machine;
Fig. 2 illustrates the perspective view from seeing previously according to the conveying fin unit of the runner of Fig. 1;
Fig. 3 illustrates the perspective view of seeing from behind according to the conveying fin unit of the runner of Fig. 1;
Fig. 4 illustrates the axial section of runner behind its each parts of assembling according to Fig. 1;
Fig. 5 illustrates the local amplification profile of the runner suction adapter that is connected with the suction flange of sucking machine housing; With
Fig. 6 illustrates the perspective view of the runner that fits together with drive motor.
Embodiment
Three master units that are used in the runner in the high speed radial-flow type sucking machine shown in Figure 1.These three master units are: rear trochal disc 10, this rear trochal disc 10 have be used for the live axle (not shown), being coupling of being positioned at the center receive opening 12 and be used for the opening 14 of clamping bolt, wheel disc 10 utilizes this clamping bolt to be fixed on the live axle; The preceding wheel disc 16 of annular, this preceding wheel disc 16 have the external diameter identical with rear trochal disc 10, yet have bigger central opening 18; Totally with the conveying fin unit of 20 marks, this conveying fin unit is arranged between these two wheel discs 10 and 16.
Carry fin unit 20 to have the wheelboss part 22 that is designed to inlet connection.This wheelboss part 22 has the adapter portion section 24 in the place ahead and horizontal lip part section 26, and this adapter portion section 24 is connected with intermediate section 28 integral types of lip part section 26 by rounding.
The conveying blade 30 of six circumferential same distribution in edge is formed on the wheelboss part 22, and these conveying blades 30 have crooked neutral axis (neutrale Faser).The thickness of conveying blade 30 increases gradually from the radially outside direction of wheelboss part 22, up to about 80% some place of the radially extreme length that arrives conveying blade 30.From this point, the thickness of conveying blade 30 radially outwards reduces again gradually, and end portion section quilt is rounding significantly, as illustrating with 32.
In having portion's section of bigger circumferential thickness, conveying blade 30 is designed to be added with the cavity configuration 34 of flank.
As shown in Figure 3,15% the inner end portion section 33 that accounts for the conveying blade total length of conveying blade 30 extends in the space that is surrounded by wheelboss part 22 with cantilevered fashion.The axial leading edge of the Duan Yiqi of this inner end portion is inserted the inside of adapter portion section 24, as shown in Figure 4.
26 outer peripheral the sections of lip part section that protrude in diametrically of conveying blade 30 have three admittance mouths 36 along blade longitudinal direction same distribution, and described admittance mouthful 36 sides from conveying blade 30 extend through to opposite side.
Rear trochal disc 10 has the admittance mouth of aiming at the admittance mouth 36 of conveying blade 30 38.Correspondingly, preceding wheel disc 16 also has the admittance mouth of aiming at the admittance mouth 36 of conveying blade 30 40.
The diameter of the opening 18 of preceding wheel disc 16 is specified to, and makes described diameter be matched with circumferential shoulder 42 in the sealed mode of shape, and this circumferential shoulder 42 is provided with by the outside of lip part section 26.Circumferentially the height of shoulder 42 is equivalent to the thickness of wheel disc 16.
Wheel set assembly shown in Fig. 1 is assembled like this:
To carry fin unit 20 to be put into from behind on the wheel disc 16 like this, and make the opening 18 of this wheel disc 16 center on circumferential shoulder 42 with flushing.Then, like this rotational conveyance fin unit 20 makes it admit mouthfuls 36 to aim at the admittance mouth 40 of wheel disc 16.Then, a rivet 44 passes one of admittance mouth 36,40 of present aligning, and the external diameter of this rivet 44 is engaged in the admittance mouth 36,40 of aligning in gapless mode.
Then, rear trochal disc 10 is utilized admittance mouth 38 covers of its coupling install on the protuberance of rivet 44.So riveted joint rivet 44 makes wheel disc 10 keep and can also rotate.After making admittance mouth 38 and the admittance mouth of having aimed at 36 and 40 alignings, all the other rivets 44 pass the admittance mouths of present all alignings and also rivet.At last, at first only the rivet of part riveted joint is riveted again.Therefore, wheel disc 10 and 16 and be fixedly connected with the sandwich conveying fin unit 20 of mode between these two wheel discs of sandwich.
Alternatively, can with rivet 44 injection mouldings in conveying blade unit 20 as inserting member.
In addition alternatively, can on the conveying blade unit, pin shape spare be arranged injection moulding, the given bonding plane of described pin shape spare, this bonding plane can be mutually bonding with opening 38,40.
In addition alternatively, also can pin shape spare be arranged injection moulding on the conveying blade unit or in the conveying blade unit, this pin shape spare can weld mutually with the material of wheel disc.
It is also conceivable that on the position of the single joint of pointwise, between conveying blade unit 20 and wheel disc 10,16, the face joint is set.
In the runner in the compressor of packing into, adapter portion section 24 is arranged in the suction flange 46 of compressor housing 48 coaxially, and is as shown in fig. 5.Suction flange 46 has seal groove 50 on the side within it, and sealing groove 50 is radially inwardly with axially to after-opening.Utilize sealing groove 50, suction flange 46 is being wrapped on the end of adapter portion section 24 under the zero-lash situation in radial and axial rear, thereby obtains clearance seal (portion).
On Fig. 5 top with 52 sections that the hollow drive shaft that is used for runner is shown.This live axle is bearing on the hollow shaft 58 and at front end by axially spaced bearing 54,56 and seals by cover piece 60.
Be coupling and receive opening 12 and centered on by guide ring 62, this guide ring 62 has the guide surface 64 of spill.Guide surface 64 leads to rear trochal disc 10 from the surface of live axle 52 and to become big diameter gradually.
Live axle 52 be connected with 18000 rev/mins of motor rotating 66, as shown in fig. 6.Unit shown in Figure 6 is unshowned by the there, surround with the housing shown in the shell part of inlet side 48 in Fig. 5.
When high rotating speed (until above 18000 rev/mins), the sheet material that can use dimensionally stable is as the material that is used for wheel disc 10 and 16, for example: thickness typically is about 0.5mm to about 2mm, preferred extremely titanium plate or the steel plate of about 1mm of about 0.5mm; Thickness for about 1mm to about 3mm, preferably about 1.2mm extremely about 1.5mm, by the erosion-resisting aluminum alloy plate made of duralumin for example; But also can use plastic composite, as fibre-reinforced synthetic resin board, this fibre-reinforced synthetic resin board has three to eight, preferred about four fabric layer of being made up of glass fibre, carbon fiber, boron fiber etc. in plastic substrate, this plastic substrate is preferably selected from following material: polyester resin, epoxy resin, thermoplastic (PA, PC, PSU, PES, LCP, PPS, PEEK, PAR, PET, PBT, PEI), polypropylene.
Carry preferably plastics injection member of fin unit 20, particularly following material can be used for this plastics injection member: thermoplastic, fibre-reinforced thermoplastic, fibre-reinforced polyester resin.
Alternatively, also can use aluminum casting or titanium casting or the forging of for example making by duralumin.
Material in order to manufacturing rivet 44 is a kind of like this material, and this material can corrosion phenomenon not occur with the material of wheel disc 10,16 and the material of conveying fin unit 20.Particularly rivet is suitable for being made by following material: aluminium, non-ferrous metal, iron and steel and composite structure.

Claims (19)

1. runner that is used for radial-flow type machinery, described runner comprises: rear trochal disc (10); Turn up the soil, be arranged on abreast the preceding wheel disc (16) in described rear trochal disc the place ahead at interval; And a plurality of conveying blades (30) that are arranged between the described wheel disc, described conveying blade has radially extension, it is characterized in that, and described conveying blade (30) is that profiled member also is connected with described two wheel discs (10,16) by linkage structure (44).
2. runner according to claim 1 is characterized in that, described linkage structure comprises the one or more structures that are selected from following group: the sealed pressure contact portion of rivet (44), pointwise and adhesive portion face, shape, pointwise and weld part face.
3. runner according to claim 1 and 2, it is characterized in that, the thickness that the edge of described conveying blade (30) is circumferentially measured at least in an intermediate section of this conveying blade radially outward increase gradually, and preferably be arranged in radially outside portion's section again radially outward reduce gradually.
4. according to each described runner in the claim 1 to 3, it is characterized in that the end portion section (32) of described conveying blade (30) is rounded.
5. according to each described runner in the claim 1 to 4, it is characterized in that portion's section of at least one thickening of described conveying blade (30) is designed to the hollow cavity structure.
6. according to each described runner in the claim 1 to 5, it is characterized in that described conveying blade is formed on the wheelboss part (22).
7. runner according to claim 6 is characterized in that, described wheelboss part (22) is designed to inlet connection.
8. runner according to claim 7 is characterized in that, the end portion section that is arranged in inside of described conveying blade (30) stretches into the inner space of described inlet connection (28).
9. according to each described runner in the claim 6 to 8, it is characterized in that, described before wheel disc (16) be designed to annular disk, the edge shape of described wheelboss part (22) sealedly with described before the inner edge collaborative work of wheel disc (16).
10. according to each described runner in the claim 7 to 9, it is characterized in that the edge of inlet side freely of described inlet connection (24) forms clearance seal with the fixing inlet flange (46) of the housing of the radial-flow type machinery that comprises runner (10).
11. runner according to claim 10, it is characterized in that, described inlet flange (46) has a radially inside and axial seal groove (50) towards the runner opening, and described seal groove is mutually opposed with the end portion section and the end face that are positioned at outside side face of described inlet connection (28) under gapless situation.
12., it is characterized in that the material of described wheel disc (10,16) is selected from following group according to each described runner in the claim 1 to 11: thickness for about 0.5mm to about 2mm, preferred extremely titanium plate or the steel plate of about 1mm of about 0.8mm; Thickness for about 1mm to about 3mm, preferably about 1.2mm extremely about 1.5mm by the aluminum alloy plate made of duralumin particularly; Thickness for about 0.8mm to about 3mm, preferred about 1mm fibre-reinforced plastic board of about 1.5mm extremely.
13. according to each described runner in the claim 1 to 12, it is characterized in that, the material of described conveying blade (30) is selected from following group: plastics, particularly fibre-reinforced plastics, particularly with glass fibre or carbon fiber reinforced plastics, and steel or high-quality steel, titanium or aluminum alloy be duralumin for example.
14., it is characterized in that the material of described rivet is selected from following group: iron, steel, non-ferrous metal, metallic composite according to each described runner in the claim 2 to 13.
15., it is characterized in that described rear trochal disc (10) and live axle (52) are connected in mode in relative rotation according to each described runner in the claim 1 to 4.
16. runner according to claim 15 is characterized in that, described live axle (52) passes described runner (10).
17., it is characterized in that at least a portion of described rivet (44) is injected into type in conveying blade (30) according to each described runner in the claim 2 to 16.
18. according to each described runner in the claim 2 to 16, it is characterized in that at least a portion of described adhesive portion or weld part comprises pin shape spare, described pin shape spare is formed on the conveying blade (30).
19., it is characterized in that described runner has a guide ring (62) at the center according to each described runner in the claim 1 to 18.
CN2009801335014A 2008-08-29 2009-08-12 Rotor for a radial machine Pending CN102138005A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008044875.3 2008-08-29
DE102008044875A DE102008044875A1 (en) 2008-08-29 2008-08-29 Impeller for a radial machine
PCT/EP2009/005837 WO2010022860A1 (en) 2008-08-29 2009-08-12 Rotor for a radial machine

Publications (1)

Publication Number Publication Date
CN102138005A true CN102138005A (en) 2011-07-27

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ID=41394969

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009801335014A Pending CN102138005A (en) 2008-08-29 2009-08-12 Rotor for a radial machine

Country Status (5)

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EP (1) EP2318719A1 (en)
KR (1) KR20110051264A (en)
CN (1) CN102138005A (en)
DE (1) DE102008044875A1 (en)
WO (1) WO2010022860A1 (en)

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ITBS20110141A1 (en) * 2011-10-12 2013-04-13 Crea Srl IMPELLER AND ITS IMPLEMENTATION METHOD
USD767622S1 (en) 2015-02-26 2016-09-27 Samsung Electronics Co., Ltd. Display screen or portion thereof with animated graphical user interface
US10487852B2 (en) 2016-06-24 2019-11-26 Airius Ip Holdings, Llc Air moving device
DE102020123517B4 (en) 2020-09-09 2024-06-06 Nidec Gpm Gmbh Impeller for a centrifugal fluid pump and centrifugal fluid pump comprising the impeller and motor vehicle comprising such a centrifugal fluid pump

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CN87200309U (en) * 1987-01-03 1987-10-21 淄博饮料泵厂 Self-priming corrosion-proof shunt pump
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Publication number Priority date Publication date Assignee Title
CN104165149A (en) * 2014-08-22 2014-11-26 联想(北京)有限公司 Fan and electronic device
CN104196758A (en) * 2014-08-22 2014-12-10 联想(北京)有限公司 Fan and electronic device

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Application publication date: 20110727