CN109695591A - Impeller and method for manufacturing impeller - Google Patents
Impeller and method for manufacturing impeller Download PDFInfo
- Publication number
- CN109695591A CN109695591A CN201811218250.7A CN201811218250A CN109695591A CN 109695591 A CN109695591 A CN 109695591A CN 201811218250 A CN201811218250 A CN 201811218250A CN 109695591 A CN109695591 A CN 109695591A
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- China
- Prior art keywords
- impeller
- matrix
- pedestal
- primary blades
- shaped section
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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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
- F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid 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
- F05D2230/20—Manufacture essentially without removing material
- F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
- F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
-
- 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
- F05D2230/50—Building or constructing in particular ways
- F05D2230/51—Building or constructing in particular ways in a modular way, e.g. using several identical or complementary parts or features
-
- 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
- F05D2230/50—Building or constructing in particular ways
- F05D2230/53—Building or constructing in particular ways by integrally manufacturing a component, e.g. by milling from a billet or one piece construction
-
- 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
- F05D2300/174—Titanium alloys, e.g. TiAl
Abstract
In order to provide air blower or compressor with the impeller simply constructed, the impeller especially can also be manufactured with simple and cheap method and step, to propose, the impeller has impeller matrix, the impeller matrix includes impeller cover and the integrally formed impeller blade one-piece on impeller cover, and impeller pedestal is maintained on impeller matrix by the welding of itself and impeller matrix and impeller pedestal is formed by multiple pedestal fan-shaped sections welded with impeller matrix.
Description
Technical field
The present invention relates to for air blower or compressor impeller and for manufacture it is such for air blower or
The method of the impeller of compressor.
Background technique
Such impeller can manufacture in different ways.
It is a kind of for manufacturing such impeller a possibility that be pure welding design, the impeller in the welding design
Part is prefabricated by plate and then welds, wherein generates in terms of accessibility and largely asks since welding position is in internal
Topic.
A possibility that another kind is for manufacturing such impeller is casting method, wherein casting must reprocess and lead to
It crosses reparation welding and eliminates defect, this is especially produced in the region in impeller internal space, particularly in the region of blade path
Raw problem.
Another possibility is the method for cutting, wherein the method for cutting is essentially available for unshrouded impeller and in enclosed
It is led to the problem of in the case where impeller huge.
Summary of the invention
Therefore, the task of the present invention is to provide having the impeller that simply constructs, the impeller particularly also can be with
Simple and cheap method and step manufacture.
According to the present invention, the task solves in terms of the impeller of described type in the following way when starting, that is,
The impeller has impeller matrix, and the impeller matrix includes impeller cover and the integrally formed impeller one-piece on impeller cover
Blade and impeller pedestal be maintained on impeller matrix by the welding of itself and impeller matrix and impeller pedestal by it is multiple with
The pedestal fan-shaped section of impeller matrix welding is formed.
Therefore, it is the advantages of solution according to the present invention, allows fan-shaped using multiple pedestals in a simple manner
Section, on impeller matrix by outside impeller, particularly the outside of pedestal fan-shaped section carry out welding process firm banking.
Within a context, unspecified for the construction of impeller matrix.
So a kind of advantageous solution regulation, impeller matrix includes impeller blade, and the impeller blade is in impeller cover
The outlet of impeller is extended between impeller pedestal.
It further preferably provides, impeller matrix includes wheel hub, and the wheel hub is integrally formed one-piece on impeller matrix.
It further preferably provides, impeller matrix has impeller primary blades as impeller blade, and the impeller primary blades are special
It is the end for connecting and extending to from wheel hub discharge side with wheel hub in the region of the end of its entrance side.
In addition, advantageously, impeller matrix has impeller time blade as impeller blade, institute for the efficiency of impeller
Impeller time blade is stated to extend between impeller primary blades and from the end for the entrance side for being radially spaced setting with wheel hub
To the end of discharge side.
It further preferably provides, impeller matrix has the inlet nozzle being arranged on impeller cover, and the medium to be conveyed passes through
The inlet nozzle enters in impeller.
Inlet nozzle for example can be soldered on impeller cover.
It is preferably provided that, inlet nozzle is integrally formed on impeller cover one-piece herein.
In the context at present to solution of the invention, for forming the pedestal fan-shaped section of impeller pedestal
Construction it is unspecified.
Therefore, a kind of advantageous solution regulation, the pedestal fan-shaped section for forming impeller pedestal are adjacent to each other at each two
Or along the circumferential direction extend between impeller primary blades successively.
Here, each pedestal fan-shaped section is especially formed by the part that cuts of flat material, the pedestal fan-shaped section tool
There is the primary blades connection profile of the adjacent impeller primary blades in carina area.
For the connection between impeller matrix and pedestal fan-shaped section, it is preferably provided that, each pedestal fan-shaped section is along master
Blade connects profile and the carina area of impeller primary blades is welded.
It is fan-shaped in the pedestal for forming impeller pedestal in the context of the explanation at present to solution according to the invention
Not to the case where there are impeller time blades detailed description in terms of the construction of section.
Therefore, a kind of advantageous solution regulation, the pedestal fan-shaped section for forming impeller pedestal are adjacent to each other at each two
Impeller primary blades and at least one impeller between the impeller primary blades time blade between extend.
Here, each pedestal fan-shaped section is especially formed by the part that cuts of flat material, the pedestal fan-shaped section tool
There is the primary blades connection profile in the adjacent impeller primary blades of carina area and there is adjacent at least one impeller time blade
Carina area secondary blade connect profile.
For the connection between impeller matrix and pedestal fan-shaped section, it is preferably provided that, each pedestal fan-shaped section is along master
Blade connects profile and welds with the carina area of impeller primary blades and connect profile and at least one described leaf along secondary blade
The carina area of round blade is welded.
It further preferably provides, pedestal fan-shaped section connects extending between impeller primary blades for profile and wheel hub along wheel hub
Circumferential area welding.
Particularly advantageously, pedestal fan-shaped section passes through the welding of the carina area of I type weld seam and impeller primary blades and necessity
When welded with the carina area of at least one described impeller time blade.
It further preferably provides, impeller has the washer for keeping impeller pedestal stable in the region around wheel hub, the pad
Circle especially also additionally makes the stable connection between pedestal fan-shaped section and wheel hub.
Such washer preferably pedestal fan-shaped section and impeller matrix welding after be installed on impeller pedestal and especially
It is not only to be connect with wheel hub but also with impeller pedestal by welding, on the one hand to make the material thickness of impeller pedestal keep to the greatest extent may be used
It can the small and on the other hand also additionally connection of improvement and wheel hub.
In addition, it is preferably provided that, impeller matrix has the discharge side in impeller cover in a solution in accordance with the invention
Fringe region on integrally formed reinforcing ring.
Reinforcing ring can for example be connect by welding with impeller matrix.
It is, however, particularly advantageous to which reinforcing ring is integrally formed one-piece on impeller matrix.
Moreover, it relates to a kind of method for manufacturing the impeller of air blower or compressor, in the method,
Impeller matrix, impeller matrix one comprising impeller cover and one-piece are manufactured by the Milling Process of blank according to the present invention
The impeller blade being molded on impeller cover, and according to the present invention, by by multiple pedestal fan-shaped sections and leaf on impeller matrix
Wheel matrix welds and fixes impeller pedestal.
The advantages of solution, is, can manufacture impeller matrix by Milling Process, and especially mention herein
It has supplied for impeller in the simple close to mode of bottom side still open inner space, and on the other hand can pass through bottom
The welding of seat fan-shaped section manufactures impeller pedestal in a simple manner.
Furthermore it is advantageous that pedestal fan-shaped section is successively welded with impeller matrix, and thus with the realization of simple means
The simple manufacturing process of impeller pedestal.
It is unspecified for the manufacture of impeller matrix in the context of current method and step.
It is therefore preferred that regulation, is integrally formed impeller primary blades onto impeller matrix by Milling Process, impeller main lobe
The end of the entrance side of piece is especially attached on the wheel hub of impeller matrix and extends to the end of discharge side.
In addition, additionally providing, it is integrally formed impeller time blade onto impeller matrix by Milling Process, the impeller
Secondary blade extends to the end of discharge side from the end for the entrance side for being spaced apart setting with wheel hub, wherein the end in outside
It is preferably placed near impeller cover and impeller pedestal outer profile.
It is unspecified for the loading of pedestal fan-shaped section in the context of current embodiment.
Therefore, pedestal fan-shaped section is packed into adjacent to each other or circumferentially by a kind of particularly advantageous solution regulation
Between the impeller primary blades of direction successively.
There is following possibility as a result, in a simple manner connect pedestal fan-shaped section with impeller primary blades.
It is a kind of that this particularly advantageous solution is provided, the carina area of pedestal fan-shaped section and impeller primary blades is welded
It connects.
Therefore, the simple and especially stable connection being able to achieve between pedestal fan-shaped section and impeller primary blades.
Particularly, it is implemented according to the method for the present invention, so that since a pedestal fan-shaped section that many pedestals are fan-shaped
Section is welded with impeller matrix.
In order to pedestal fan-shaped section can be reliably accurately located relative to impeller primary blades, it is preferably provided that, it is welding
Pass through pad before entering pedestal fan-shaped section the pedestal fan-shaped section itself is fixed in the carina area of impeller primary blades.
For the fixation between pedestal fan-shaped section and the carina area of impeller primary blades it is preferably provided that, using continuous
Weld seam the pedestal fan-shaped section and impeller primary blades are welded along the primary blades connection profile of pedestal fan-shaped section.
It is not detailed for being packed into pedestal fan-shaped section when there are impeller time blade in the context of current embodiment
Explanation.
Therefore, a kind of particularly advantageous solution regulation, is located in impeller primary blades adjacent to each other at least one
Pedestal fan-shaped section is packed between impeller time blade between these impeller primary blades.
There is following possibility as a result, in a simple manner by pedestal fan-shaped section and impeller primary blades and impeller time blade
Connection.
It is a kind of that this particularly advantageous solution is provided, by the carina area of pedestal fan-shaped section and impeller primary blades and extremely
The carina area welding of a few impeller between impeller primary blades time blade.
It is able to achieve the impeller in pedestal fan-shaped section and impeller primary blades and between the impeller primary blades as a result,
Simple and particularly stable connection between blade.
Particularly, it is implemented according to the method for the present invention, many pedestal fan-shaped sections is welded since a pedestal fan-shaped section
With impeller matrix.
In order to can reliably be accurately located pedestal fan-shaped section relative to impeller primary blades and impeller time blade, preferably
Ground regulation, is fixed on impeller primary blades and leaf for the pedestal fan-shaped section itself by pad before being solded into pedestal fan-shaped section
In the carina area of round blade.
For the fixation between the carina area of impeller time blade in pedestal fan-shaped section and impeller primary blades it is preferred that
Ground regulation, using continuous weld seam by pedestal fan-shaped section along the primary blades connection profile and impeller main lobe of the pedestal fan-shaped section
Piece is welded and is welded along the secondary blade of pedestal fan-shaped section connection profile and impeller time blade.
For unspecified at present for being solded into manufacture to the pedestal fan-shaped section in impeller matrix.
It is a kind of in the particularly advantageous between the carina area of impeller time blade of pedestal fan-shaped section and impeller primary blades
Connection regulation, by I type weld seam by pedestal fan-shaped section using impeller primary blades ridge region and when necessary with impeller time blade
Carina area and impeller matrix weld.
It is preferred that being welded by LASER BEAM WELDING or electron beam welding.
In order to accurately manufacture pedestal fan-shaped section, it is preferably provided that, it is necessary to by Wire EDM by flat material system
Make pedestal fan-shaped section.
In order to so that impeller pedestal is obtained accurate shape on the outside and it is preferably provided that, by the outer of impeller pedestal
Side finish turning and process the impeller matrix of the pedestal fan-shaped section with solder-down with for obtaining plane, so as to remove on the whole
The material accumulation portion generated due to welding or other inaccuracies in the region of pedestal fan-shaped section.
In order to improve the stability of impeller pedestal and it is preferably provided that, by washer be placed on impeller pedestal and with it is described
The connection of impeller pedestal.
Such as it can be Nian Jie with impeller pedestal by washer.
It is, however, particularly advantageous to which washer is welded using its outer profile, particularly using corner welding line and impeller pedestal
It connects, and thus providing the connection steady in a long-term between washer and impeller pedestal.
It further preferably provides, by washer using it around the Internal periphery of wheel hub, particularly by means of I type weld seam and wheel hub
Connection.
It is unspecified for the construction of impeller matrix in current embodiment in context.
Therefore, a kind of advantageous solution regulation, on impeller matrix in the region of impeller cover inlet porting nozzle.
Such inlet nozzle can be connect with impeller matrix by being welded to connect in principle.
It is, however, particularly advantageous to make inlet nozzle molding in the blank Milling Processes for impeller matrix simultaneously
And it is therefore connect one-piece with impeller matrix.
It further preferably provides, the wheel hub of impeller is set on impeller matrix.
Such as it again may be by welding and connect such wheel hub with impeller matrix.
It is, however, particularly advantageous to wheel hub is formed in the blank Milling Processes for impeller matrix, thus
Wheel hub is set one-piece on impeller matrix.
In addition, being provided to keep the impeller cover of impeller matrix, particularly impeller matrix stable, in the discharge side of impeller cover
Region in be arranged lid reinforcing ring.
It can also be made to connect with impeller matrix by welding such lid reinforcing ring.
It is, however, particularly advantageous to construct reinforcing ring in the blank Milling Processes for impeller matrix.
Therefore, the above description of solution according to the present invention especially includes the embodiment party by following serial number
The different feature combinations that formula defines:
1. the impeller of air blower or compressor, which is characterized in that the impeller has impeller matrix, the impeller matrix
The integrally formed impeller blade one-piece including impeller cover and on impeller cover, and impeller pedestal passes through itself and impeller matrix
Welding and be maintained on impeller matrix and impeller pedestal is formed by multiple pedestal fan-shaped sections welded with impeller matrix.
2. according to impeller described in embodiment 1, which is characterized in that the impeller matrix includes impeller blade, impeller leaf
Piece extends to the outlet of impeller between impeller cover and impeller pedestal.
3. the impeller according to embodiment 1 or 2, which is characterized in that the impeller matrix includes wheel hub, the wheel hub
Especially it is integrally formed on impeller matrix one-piece.
4. according to impeller described in embodiment 3, which is characterized in that the impeller matrix has impeller primary blades as leaf
Impeller blade, the impeller primary blades especially connect with wheel hub in the region of the end of its entrance side and go out from the end
Hair extends to the end of discharge side.
5. according to impeller described in embodiment 4, which is characterized in that the impeller matrix has impeller time blade as leaf
Impeller blade, the impeller time blade is between impeller primary blades and from the end for the entrance side for being radially spaced setting with wheel hub
It sets out and extends to the end of discharge side.
6. the impeller according to one of embodiment of above, which is characterized in that the impeller matrix, which has, to be arranged in leaf
Take turns the inlet nozzle covered.
7. according to impeller described in embodiment 6, which is characterized in that the inlet nozzle is integrally formed one-piece to leaf
Wheel covers.
8. the impeller according to one of embodiment of above, which is characterized in that form the pedestal fan-shaped section of impeller pedestal
Extend between two impeller primary blades adjacent to each other respectively.
9. the impeller according to one of embodiment of above, which is characterized in that each pedestal fan-shaped section passes through flat
The part that cuts of flat material is formed, and the pedestal fan-shaped section has the primary blades fifth wheel of the adjacent impeller primary blades in carina area
It is wide.
10. according to impeller described in embodiment 9, which is characterized in that each pedestal fan-shaped section connects along primary blades
The carina area of cock wheel exterior feature and impeller primary blades is welded.
11. the impeller according to one of embodiment of above, which is characterized in that form the pedestal fan-shaped section of impeller pedestal
Respectively two impeller primary blades adjacent to each other and at least one impeller between the impeller primary blades time blade it
Between extend.
12. the impeller according to one of embodiment of above, which is characterized in that each pedestal fan-shaped section is by flat
The part that cuts of material is formed, pedestal fan-shaped section have the primary blades connection profile of the adjacent impeller primary blades in carina area and
The secondary blade of carina area with adjacent at least one impeller time blade connects profile.
13. according to impeller described in embodiment 12, which is characterized in that each pedestal fan-shaped section connects along primary blades
Cock wheel exterior feature connect profile and at least one described impeller time leaf with the welding of the carina area of impeller primary blades and along secondary blade
The carina area of piece is welded.
14. the impeller according to embodiment 12 or 13, which is characterized in that the pedestal fan-shaped section is connected along wheel hub
The welding of the circumferential area of profile and the wheel hub extended between impeller primary blades.
15. the impeller according to one of embodiment of above, which is characterized in that the pedestal fan-shaped section is welded by I type
Seam and the carina area of the carina area of impeller primary blades and at least one described impeller time blade are welded.
16. the impeller according to one of embodiment of above, which is characterized in that the impeller, which has, makes impeller pedestal exist
The stable washer in the region of wheel hub.
17. the impeller according to one of embodiment of above, which is characterized in that the impeller matrix has in impeller cover
Discharge side fringe region on integrally formed reinforcing ring.
18. according to impeller described in embodiment 17, which is characterized in that the reinforcing ring is integrally formed one-piece to leaf
It takes turns on matrix.
19. the method for the impeller for manufacturing air blower or compressor, which is characterized in that pass through the Milling Process system of blank
Make impeller matrix comprising impeller cover and the impeller blade being integrally formed on impeller cover one-piece, and passing through will be multiple
Pedestal fan-shaped section and impeller matrix weld and fix impeller pedestal on impeller matrix.
20. according to method described in embodiment 19, which is characterized in that make impeller by Milling Process on impeller matrix
Primary blades are integrally formed, and the end of the entrance side of impeller primary blades is especially attached on the wheel hub of impeller matrix and extends to
The end of discharge side.
21. the method according to embodiment 19 or 20, which is characterized in that made on impeller matrix by Milling Process
Impeller time blade is integrally formed, and the impeller time blade extends to row from the end for the entrance side for being spaced apart setting with wheel hub
The end of side out.
22. the method according to one of embodiment 19 to 21, which is characterized in that the pedestal fan-shaped section is packed into that
Between this adjacent impeller primary blades.
23. according to method described in embodiment 22, which is characterized in that by the pedestal fan-shaped section and impeller primary blades
Carina area welding.
24. according to method described in embodiment 23, which is characterized in that fan many pedestals since a pedestal fan-shaped section
Shape section and impeller matrix weld.
25. the method according to embodiment 23 or 24, which is characterized in that the pedestal fan-shaped section is before its solder-down
It is fixed on by pad in the carina area of impeller primary blades.
26. according to method described in embodiment 25, which is characterized in that the pedestal fan-shaped section is utilized continuous weld seam
It is welded along primary blades connection profile and impeller primary blades.
27. the method according to one of embodiment 19 to 26, which is characterized in that by the pedestal fan-shaped section each other
Adjacent impeller primary blades and it is described at least one be located between the impeller between these impeller primary blades time blade and be packed into.
28. according to method described in embodiment 27, which is characterized in that the ridge of the pedestal fan-shaped section and impeller primary blades
The welding of portion region and carina area welding at least one impeller positioned at impeller primary blades between time blade.
29. according to method described in embodiment 28, which is characterized in that fan many pedestals since a pedestal fan-shaped section
Shape section and impeller matrix weld.
30. the method according to embodiment 28 or 29, which is characterized in that will before being solded into the pedestal fan-shaped section
It is fixed in impeller primary blades and impeller time blade carina area by pad.
31. the method according to one of embodiment 28 to 30, which is characterized in that the pedestal fan-shaped section is utilized company
Continuous weld seam welds with impeller primary blades along primary blades connection profile and connect profile and impeller time blade along secondary blade
Welding.
32. the method according to one of embodiment 23 to 31, which is characterized in that the pedestal fan-shaped section is passed through I
Type weld seam using impeller primary blades and when necessary the carina area of impeller time blade and impeller matrix weld.
33. the method according to one of embodiment 19 to 32, which is characterized in that by Wire EDM by flat
Material manufactures the pedestal fan-shaped section.
34. the method according to one of embodiment 19 to 33, which is characterized in that pass through the outside essence to impeller pedestal
Turning outer diameter and process the impeller matrix of the pedestal fan-shaped section with solder-down with for obtaining plane.
35. the method according to one of embodiment 19 to 34, which is characterized in that washer to be placed on impeller pedestal
And it is connect with impeller pedestal.
36. according to method described in embodiment 35, which is characterized in that the washer is utilized its outer profile and impeller bottom
Seat connection.
37. the method according to embodiment 35 or 36, which is characterized in that the washer is using it around the interior of wheel hub
Profile is connect with wheel hub.
38. the method according to one of embodiment 19 to 37, which is characterized in that in impeller cover region on impeller matrix
Inlet porting nozzle in domain.
39. according to method described in embodiment 38, which is characterized in that in the blank Milling Process mistake for being directed to impeller matrix
Form the inlet nozzle in journey.
40. the method according to one of embodiment of above, which is characterized in that the wheel of impeller is arranged on impeller matrix
Hub.
41. according to method described in embodiment 40, which is characterized in that in the blank Milling Process mistake for being directed to impeller matrix
Form the wheel hub in journey.
42. the method according to one of embodiment 19 to 41, which is characterized in that in impeller cover on impeller matrix
Lid reinforcing ring is set in the region of discharge side.
43. according to method described in embodiment 42, which is characterized in that in the blank Milling Process mistake for being directed to impeller matrix
The lid reinforcing ring is constructed in journey.
Detailed description of the invention
Other features and advantages of the present invention are the themes of the detailed description of accompanying drawings and embodiments below.
Fig. 1 shows the perspective view of the embodiment of impeller according to the present invention；
Fig. 2 shows the sectional views for the impeller matrix that impeller according to the present invention is passed through along line 2-2；
Fig. 3 shows the top view of the arrow A in Fig. 2 of impeller matrix；
Fig. 4 shows the top view of the arrow B in Fig. 2 of impeller matrix；
Fig. 5 shows the top view of the pedestal fan-shaped section according to the present invention of the impeller pedestal for manufacturing impeller；
Fig. 6 shows the top view with the pedestal fan-shaped section being initially introduced into impeller matrix of similar Fig. 4；
Fig. 7 shows the sectional view of the line 7-7 in Fig. 6；
Fig. 8 shows the sectional view of the pedestal fan-shaped section with welding of similar Fig. 7；
Fig. 9 is shown with the impeller matrix according to Fig. 6 for manufacturing the pedestal fan-shaped section of all welding of impeller pedestal
Top view；
Figure 10 shows the sectional view of the impeller matrix for passing through the pedestal fan-shaped section with welding of similar Fig. 2；
Figure 11 show arrow of the impeller pedestal of impeller in Figure 10 C's however the vertical view with the additional washer placed
Figure, and
Figure 12 shows the sectional view that the line 12-12 in Figure 11 passes through the impeller completed.
Specific embodiment
It is integrally shown in Fig. 1 and marks air blowers or compressor impellers with 10, the impeller includes impeller
Lid 12 and the impeller pedestal 14 opposite with impeller cover 12, impeller internal space 16 is between impeller cover and impeller pedestal, gaseous state
Medium by inlet nozzle 22 integrally formed on impeller cover 12 enter impeller internal space in, by 12 He of impeller cover
The impeller blade 24 being arranged between impeller pedestal 14 and the impeller passage formed between impeller blade 24 radially accelerate simultaneously
And it is discharged by radial external outlet 26, wherein the outlet 26 is located at outer profile 32 and the impeller bottom of impeller cover 12
Between the outer profile 34 of seat 14, the outer profile is prolonged respectively with the about the same radial spacing of the pivot center 36 with impeller 10
It stretches.
Here, impeller 10 includes impeller matrix 42 shown in figure 2, the impeller matrix passes through to the excessive base of size
The Milling Process of part is made and herein includes inlet nozzle 22 and impeller cover 12, and the impeller cover is from inlet nozzle 22s phase
Outer profile 32 is extended radially outwardly to for shaft 36.(Fig. 3)
In addition, the wheel hub 44 opposed with inlet nozzle 22 is integrally formed one-piece on impeller cover 12 and inlet nozzle 22
And it is made up of the Milling Process of blank.(Fig. 2, Fig. 4)
The particularly impeller blade 24 by being configured to impeller primary blades 46 is connected between impeller cover 12 and wheel hub 44
Carry out, the impeller primary blades be equally integrally formed one-piece on impeller cover 12 and by the Milling Process of blank at
Type.(Fig. 4)
The impeller primary blades 46 on the inside of impeller cover 48 from towards inlet nozzle 22 and impeller cover 12 and wheel hub
The interior zone 52 of 44 connections radially and at azimuth extends to the end of discharge side along the inside 48 of impeller cover 12
56, the interior zone has the end 54 (Fig. 2) towards the entrance side of inlet nozzle 22, and the end of the outlet side is in impeller
The outer profile 32 of lid terminates with nearby or with the outer profile being spaced apart very little distance.
Impeller primary blades 46 are equally integrally formed one-piece on impeller cover 12 and are therefore the one of impeller matrix 42
Part.
In order to make the regional stability between inlet nozzle 22 and impeller cover 12, impeller matrix 42, which is preferably also provided with, to be made entering
The stable reinforcing ring 62 of transition position between mouthful nozzle and impeller cover and in addition to stablizes impeller cover 12 and be equipped with radial
External lid reinforcing ring 64, the lid reinforcing ring swell on the outside 68 opposite with inside 48 of impeller cover 12.(Fig. 2, Fig. 3)
Illustrated by as in Fig. 4, it is preferably provided in the illustrated embodiment there are two types of impeller blade 24, more precisely
Say and impeller time blade 72 be set between impeller primary blades 46, the interior zone 52 of the impeller primary blades not only with inlet nozzle
22, impeller cover 12 and wheel hub 44 connect and extend to the discharge of the outer profile 32 close to impeller cover 12 of the impeller primary blades
The end 56 of side, the end 74 of the entrance side of the impeller time blade and wheel hub 44 it is spaced apart be arranged and impeller time leaf
The end 76 of the discharge side of piece is similarly positioned near the outer profile 32 of impeller cover 12.
Here, impeller time blade 72 is also integrally formed on impeller cover 12 and grand by the inside of impeller cover 48 one-piece
Rise, as in Fig. 4 illustrated by, wherein impeller time blade 72 is manufactured also by the Milling Process of blank.
In order to form impeller pedestal 14, as shown in fig. 5, it is provided with pedestal fan-shaped section 82, these pedestals fan
The circle for the outer profile 34 for forming impeller pedestal 14 is for example determined and had to shape section by flat-sheet material materials and parts by Wire EDM
The outer profile 84 of the circumference of segmental arc, the primary blades connection relative to each other extended from the outer profile 84 of circumference towards wheel hub 44
Profile 86 and 88 and the wheel hub between primary blades connection profile 86 and 88 connect profile 92.
In addition, the groove extended radially inwardly from the U-shapeds of the outer profile 84s of circumference connects profile in primary blades
Extend between 86 and 88, the trough rim of the U-shaped of the groove forms time blade connection profile 96,97,98.
As shown in fig. 6, these pedestal fan-shaped sections 82 are in this way in the impeller master of in rotational direction arranged in succession
It is packed between blade 46, so that each pedestal fan-shaped section 82 is connected using its primary blades as being explicitly illustrated in Fig. 7 again
Cock wheel exterior feature 86 and 88 sticks in the carina area 104 of impeller primary blades 46, more precisely, sticking on carina area 104
In long side 106 and 108 toward each other, the upper seamed edge of the separate impeller cover 12 of the adjacent impeller primary blades 46 of the carina area
102。
In addition, secondary blade connection profile 96 and 98 is equally adjacent to the spine in the upper seamed edge 112 of adjacent impeller time blade 72
On region 114, more precisely, sticking in the long side 116 and 118 away from one another of impeller time blade.
It is preferred that pedestal fan-shaped section 82 is packed into this way, so that the deviating from the impeller internal space 16 of pedestal fan-shaped section 82
Outside 122 and impeller primary blades 46 and impeller time blade 72 upper seamed edges 102 and 112 are substantially aligned.
In addition, wheel hub connection profile 92 sticks on the circumference 124 of wheel hub 44.
Each pedestal fan-shaped section 82 connects profile 86 and 88 in primary blades and secondary blade connects the area of profile 96,97 and 98
Fixation in domain is carried out by pad first, and connects profile 86 and 88 and secondary blade fifth wheel then along primary blades
Exterior feature 96,97 and 98 connect profile with the long side 106 and 108 of respective spine 104 and 114 and 116 and 118 and by wheel hub
92 are continuously welded with the circumference 124 of wheel hub 44 by so-called I type weld seam.
As illustrated by figs. 8 and 9, pedestal fan-shaped section 82 is preferably sequentially loaded into until being packed into all pedestals sectors
Section 82.
There are material coating in the region of weld seam 126 after welding all pedestal fan-shaped sections 82, the material coating is super
The outside 122 of pedestal fan-shaped section 82 out.
In order to remove material coating, finish turning is by 42 He of impeller matrix in the region in the outside of pedestal fan-shaped section 82 122
The pedestal fan-shaped section 82 of welding is formed whole with for generating plane 132, the plane is in the outside of pedestal fan-shaped section 82 122
And extend on the upper seamed edge 102 and 112 of impeller primary blades 46 and impeller time blade 72, as shown in Figure 10 like that, and
As shown in Figure 11 and Figure 12, washer 142 is placed into the plane, the washer is not placed only on wheel hub 44
Contact surface 134 on and also be placed on the outside 122 of pedestal fan-shaped section 82 and be placed on impeller primary blades 46 when necessary
With terminate with being flushed on the upper seamed edge 102 and 112 of impeller time blade 72 and with them.
Here, washer 142 from inner radial limit wheel hub 44 contact surface 134 anchor ring 144s along relative to rotation
The radial direction of axis 36 extends in the annular region 146 in the outside 122 of impeller pedestal 14, wherein annular region 146 is from leaf
0.5 times for taking turns the radial distance of the outer profile 34 of pedestal 14 extends to its 0.7 times.
Washer 142 preferably has outer profile 148, and the outer profile is welded by corner welding line 152 and impeller pedestal 14.
Furthermore it is preferred that equally the Internal periphery 154 of washer 142 is welded with annular surface 144 by I type weld seam.
In impeller according to the present invention, impeller matrix 42 and pedestal fan-shaped section 82 are preferably by high-intensitive and corrosion resistant
Metal material is made, such as 5 grades of titaniums and/or high-intensitive rustless martensitic stain less steel.
The welding of pedestal fan-shaped section 82 especially by from the welding process in the outside of pedestal fan-shaped section 82 realize, from
And save the welding in impeller internal space, preferably by the LASER BEAM WELDING or electron beam welding of no additional materials, thus
It is possible that pedestal fan-shaped section 82 is manufactured with small tolerance clearance, the tolerance clearance of such as less than 0.2mm, to pass through laser
Beam welding or electron beam welding connect profile 96 and 98 with time blade along primary blades connection profile 86 and 88 in a simple manner
And the I type weldering that the realization of circumference 124 of wheel hub connection profile 92 and wheel hub 44 is implemented from the outside of pedestal fan-shaped section 82 122
Seam.
It is preferred that executing heat treatment after pedestal fan-shaped section 82 is welded in impeller matrix 42, thus welding stress is reduced simultaneously
And therefore realize the mechanical property of definition, especially when the material for manufacturing impeller matrix 42 and pedestal fan-shaped section 82 is non-corrosive
Martensitic stain less steel when be such.
Finally carry out the pickling of impeller, to remove with weld related oxidation tint and the oxide skin as caused by being heat-treated simultaneously
And improve corrosion resistance.
Claims (43)
1. the impeller (10) of air blower or compressor, which is characterized in that the impeller (10) has impeller matrix (42), described
Impeller matrix includes impeller cover (12) and the integrally formed impeller blade (24), and impeller one-piece on impeller cover (12)
Pedestal (14) is maintained on impeller matrix (42) by the welding of itself and impeller matrix (42) and impeller pedestal (14) is by more
A pedestal fan-shaped section (82) formation with impeller matrix (42) welding.
2. impeller according to claim 1, which is characterized in that the impeller matrix (42) includes impeller blade (24), leaf
Impeller blade extends to the outlet (26) of impeller (10) between impeller cover (12) and impeller pedestal (14).
3. impeller according to claim 1 or 2, which is characterized in that the impeller matrix (42) includes wheel hub (44), described
Wheel hub is especially integrally formed on impeller matrix one-piece.
4. impeller according to claim 3, which is characterized in that the impeller matrix (42) is made with impeller primary blades (46)
For impeller blade (24), the impeller primary blades connect especially in the region of the end of its entrance side with wheel hub (44) and
The end (56) of discharge side is extended to from the end.
5. impeller according to claim 4, which is characterized in that there is the impeller matrix (42) impeller time blade (72) to make
For impeller blade (24), the impeller time blade is located between impeller primary blades (46) and opens up from wheel hub (44) spaced radial
The end (74) for the entrance side set, which is set out, extends to the end (76) of discharge side.
6. impeller according to one of the above claims, which is characterized in that the impeller matrix (42), which has, to be arranged in leaf
Inlet nozzle (22) on wheel cap (12).
7. impeller according to claim 6, which is characterized in that the inlet nozzle (22) is integrally formed one-piece to leaf
On wheel cap (12).
8. impeller according to one of the above claims, which is characterized in that form the pedestal fan-shaped section of impeller pedestal (14)
(82) extend between two impeller primary blades (46) adjacent to each other respectively.
9. impeller according to one of the above claims, which is characterized in that each pedestal fan-shaped section (82) passes through flat
The part that cuts of flat material is formed, and the pedestal fan-shaped section has the master of adjacent in carina area (104) impeller primary blades (46)
Blade connects profile (86,88).
10. impeller according to claim 9, which is characterized in that each pedestal fan-shaped section (82) connects along primary blades
The carina area (104) of cock wheel exterior feature (86,88) and impeller primary blades (46) is welded.
11. impeller according to one of the above claims, which is characterized in that form the pedestal fan-shaped section of impeller pedestal (14)
(82) respectively two impeller primary blades (46) adjacent to each other and at least one between the impeller primary blades (46)
Extend between impeller time blade (72).
12. impeller according to one of the above claims, which is characterized in that each pedestal fan-shaped section (82) is by flat
The part that cuts of material is formed, and the pedestal fan-shaped section has the main lobe of adjacent in carina area (104) impeller primary blades (46)
Piece connects profile (86,88) and has the secondary leaf of the carina area (114) of adjacent at least one impeller time blade (72)
Piece connects profile (96,98).
13. impeller according to claim 12, which is characterized in that each pedestal fan-shaped section (82) connects along primary blades
Cock wheel exterior feature (86,88) connect profile (96,98) and at least one with the spine (104) of impeller primary blades (46) and along secondary blade
Spine (114) welding of a impeller time blade (72).
14. impeller according to claim 12 or 13, which is characterized in that the pedestal fan-shaped section (82) connects along wheel hub
The welding of the circumferential area (124) of profile (92) and the wheel hub (44) extended between impeller primary blades (46).
15. impeller according to one of the above claims, which is characterized in that the pedestal fan-shaped section (82) is welded by I type
Seam and the carina area of the carina area (104) of impeller primary blades (46) and at least one described impeller time blade (72) are welded.
16. impeller according to one of the above claims, which is characterized in that the impeller (10) have make impeller pedestal
(14) washer (142) stable in the region around wheel hub (44).
17. impeller according to one of the above claims, which is characterized in that the impeller matrix (42) has in impeller cover
(12) integrally formed reinforcing ring (64) on the fringe region of discharge side.
18. impeller according to claim 17, which is characterized in that the reinforcing ring (64) is integrally formed one-piece to leaf
It takes turns on matrix (42).
19. the method for the impeller (10) for manufacturing air blower or compressor, which is characterized in that pass through the Milling Process system of blank
It makes impeller matrix (42), the impeller matrix includes impeller cover (12) and is integrally formed the leaf on impeller cover (12) one-piece
Impeller blade (24), and by by multiple pedestal fan-shaped sections (82) and impeller matrix (42) and weld solid on impeller matrix (42)
Determine impeller pedestal (14).
20. according to the method for claim 19, which is characterized in that make impeller by Milling Process on impeller matrix (42)
Primary blades (46) are integrally formed, and the end (54) of the entrance side of impeller primary blades is attached to the wheel hub of especially impeller matrix (42)
(44) on, and the end (56) of discharge side is extended to.
21. method described in 9 or 20 according to claim 1, which is characterized in that made on impeller matrix (42) by Milling Process
Impeller time blade (72) is integrally formed, and the impeller time blade is from the end (74) for being spaced apart the entrance side being arranged with wheel hub (44)
It sets out and extends to the end (76) of discharge side.
22. method described in one of 9 to 21 according to claim 1, which is characterized in that the pedestal fan-shaped section (82) is packed into that
Between this adjacent impeller primary blades (46).
23. according to the method for claim 22, which is characterized in that by the pedestal fan-shaped section (82) and impeller primary blades
(46) carina area (104) welding.
24. according to the method for claim 23, which is characterized in that fan many pedestals since a pedestal fan-shaped section (82)
Shape section (82) and impeller matrix (42) are welded.
25. the method according to claim 23 or 24, which is characterized in that the pedestal fan-shaped section (82) is before its solder-down
It is fixed in the carina area (104) of impeller primary blades (46) by pad.
26. according to the method for claim 25, which is characterized in that the pedestal fan-shaped section (82) is utilized continuous weld seam
It is welded along primary blades connection profile (86,88) and impeller primary blades (46).
27. method described in one of 9 to 26 according to claim 1, which is characterized in that by the pedestal fan-shaped section (82) each other
Adjacent impeller primary blades (46) and it is described at least one be located at the impeller between these impeller primary blades (46) time blade (72)
Between be packed into.
28. according to the method for claim 27, which is characterized in that the pedestal fan-shaped section (82) and impeller primary blades (46)
Carina area (104) welding and with it is described at least one be located at the secondary blade (72) of the impeller between impeller primary blades (46)
Carina area (114) welding.
29. according to the method for claim 28, which is characterized in that fan many pedestals since a pedestal fan-shaped section (82)
Shape section (82) and impeller matrix (42) are welded.
30. the method according to claim 28 or 29, which is characterized in that will before being solded into the pedestal fan-shaped section (82)
It is fixed in impeller primary blades (46) and impeller time blade (72) carina area by pad.
31. the method according to one of claim 28 to 30, which is characterized in that the pedestal fan-shaped section (82) is utilized company
Continuous weld seam welds with impeller primary blades (46) along primary blades connection profile (86,88) and connect profile along secondary blade
(96,98) and impeller time blade (72) weld.
32. the method according to one of claim 23 to 31, which is characterized in that the pedestal fan-shaped section (82) is passed through I
Type weld seam using impeller primary blades (46) and the carina area (104,114) and impeller base of impeller time blade (72) when necessary
Body (42) welding.
33. method described in one of 9 to 32 according to claim 1, which is characterized in that by Wire EDM by flat material
Manufacture the pedestal fan-shaped section (82).
34. method described in one of 9 to 33 according to claim 1, which is characterized in that pass through the outside to impeller pedestal (14)
(122) finish turning outer diameter and process the impeller matrix (42) of the pedestal fan-shaped section (82) with solder-down with for obtaining plane
(132)。
35. method described in one of 9 to 34 according to claim 1, which is characterized in that washer (142) is placed into impeller pedestal
(14) it is connect on and with impeller pedestal.
36. according to the method for claim 35, which is characterized in that by the washer (142) using its outer profile (148) with
Impeller pedestal (14) connection.
37. the method according to claim 35 or 36, which is characterized in that the washer (142) surrounds wheel hub using it
(44) Internal periphery is connect with wheel hub (44).
38. method described in one of 9 to 37 according to claim 1, which is characterized in that in impeller cover on impeller matrix (42)
(12) inlet porting nozzle (22) in region.
39. according to the method for claim 38, which is characterized in that in the blank Milling Process mistake for being directed to impeller matrix (42)
Form the inlet nozzle (22) in journey.
40. the method according to one of above claim, which is characterized in that impeller is arranged on impeller matrix (42)
(10) wheel hub (44).
41. according to the method for claim 40, which is characterized in that in the blank Milling Process mistake for being directed to impeller matrix (42)
Form the wheel hub (44) in journey.
42. method described in one of 9 to 41 according to claim 1, which is characterized in that in impeller cover (12) on impeller matrix
Lid reinforcing ring (64) are set in the region of discharge side.
43. according to the method for claim 42, which is characterized in that in the blank Milling Process mistake for being directed to impeller matrix (42)
The lid reinforcing ring (64) is constructed in journey.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017124746.7A DE102017124746B3 (en) | 2017-10-23 | 2017-10-23 | Impeller and method of manufacturing the same |
| DE102017124746.7 | 2017-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109695591A true CN109695591A (en) | 2019-04-30 |
Family
ID=63878359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811218250.7A Pending CN109695591A (en) | 2017-10-23 | 2018-10-18 | Impeller and method for manufacturing impeller |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3473861B1 (en) |
| CN (1) | CN109695591A (en) |
| DE (1) | DE102017124746B3 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020118982A1 (en) * | 2020-07-17 | 2022-01-20 | Nidec Gpm Gmbh | Impeller for a centrifugal fluid pump and centrifugal fluid pump having the impeller and motor vehicle having such a centrifugal fluid pump |
| JP2023054481A (en) * | 2021-10-04 | 2023-04-14 | 株式会社デンソー | centrifugal blower |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB632475A (en) * | 1947-12-09 | 1949-11-28 | English Electric Co Ltd | Improvements in and relating to the runners of hydraulic machines |
| WO2006133363A2 (en) * | 2005-06-08 | 2006-12-14 | Dresser-Rand Company | Impeller with machining access panel |
| CN1961155A (en) * | 2004-01-23 | 2007-05-09 | 罗伯特·博世有限公司 | Centrifugal blower |
| CN102187084A (en) * | 2008-09-05 | 2011-09-14 | 阿尔斯通水电设备法国公司 | Francis runner for a hydraulic machine, hydraulic machine including such a runner, and method for assembling such a runner |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2535196C3 (en) * | 1975-08-07 | 1980-12-04 | Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co Kg, 7000 Stuttgart | Impeller for radial flow machine |
| JPS5578196A (en) * | 1978-12-08 | 1980-06-12 | Mitsui Eng & Shipbuild Co Ltd | Manufacture of impeller |
| CN1205399A (en) * | 1997-07-11 | 1999-01-20 | 株式会社日立制作所 | Motor-driven blower and method of manufacturing impeller for motor-driven blower |
| DE102006029379B3 (en) * | 2006-06-27 | 2007-10-04 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Paddle wheel for use in motor vehicle coolant pump, has two different paddle wheel units firmly connected with each other, provided with notched and engaged blades and arranged with bottom disk segments, where wheel is made of metal plate |
| DE102014014287A1 (en) * | 2014-09-24 | 2016-03-24 | Ziehl-Abegg Se | fan |
-
2017
- 2017-10-23 DE DE102017124746.7A patent/DE102017124746B3/en active Active
-
2018
- 2018-10-16 EP EP18200615.5A patent/EP3473861B1/en active Active
- 2018-10-18 CN CN201811218250.7A patent/CN109695591A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB632475A (en) * | 1947-12-09 | 1949-11-28 | English Electric Co Ltd | Improvements in and relating to the runners of hydraulic machines |
| CN1961155A (en) * | 2004-01-23 | 2007-05-09 | 罗伯特·博世有限公司 | Centrifugal blower |
| WO2006133363A2 (en) * | 2005-06-08 | 2006-12-14 | Dresser-Rand Company | Impeller with machining access panel |
| CN102187084A (en) * | 2008-09-05 | 2011-09-14 | 阿尔斯通水电设备法国公司 | Francis runner for a hydraulic machine, hydraulic machine including such a runner, and method for assembling such a runner |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3473861C0 (en) | 2023-10-04 |
| DE102017124746B3 (en) | 2018-12-20 |
| EP3473861A1 (en) | 2019-04-24 |
| EP3473861B1 (en) | 2023-10-04 |
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