NZ788656B2 - In-line helicocentrifugal fan - Google Patents
In-line helicocentrifugal fan Download PDFInfo
- Publication number
- NZ788656B2 NZ788656B2 NZ788656A NZ78865620A NZ788656B2 NZ 788656 B2 NZ788656 B2 NZ 788656B2 NZ 788656 A NZ788656 A NZ 788656A NZ 78865620 A NZ78865620 A NZ 78865620A NZ 788656 B2 NZ788656 B2 NZ 788656B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- line
- cones
- cylindrical casing
- fan according
- impeller
- Prior art date
Links
- 238000009423 ventilation Methods 0.000 claims abstract 2
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract 1
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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/06—Helico-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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/329—Details of the hub
-
- 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
-
- 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
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
- F04D29/526—Details of the casing section radially opposing blade tips
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
Abstract
Disclosed invention provides a compact low noise, removable subassembly of an air driving means configured to be installed in a ventilation pipe, comprising almost all of the components requiring maintenance. An in-line helicocentrifugal fan, comprising a central body with a cylindrical casing inside which an electric motor with an impeller and a diffuser and nozzles in the form of cones is installed, wherein the cones are arranged inside the cylindrical casing, forming a removable subassembly together with the electric motor with the impeller and the diffuser mounted inside the cones.
Claims (7)
1. An in-line helicocentrifugal fan, comprising a central body with a cylindrical casing inside which an electric motor with an impeller and a diffuser and nozzles 5 in the form of cones is installed, wherein the cones are arranged inside the cylindrical casing, forming a removable subassembly together with the electric motor with the impeller and the diffuser mounted inside the cones.
2. The in-line helicocentrifugal fan according to claim 1, wherein each cone 10 comprises, at the end thereof with a smaller diameter facing outwards, a single- piece over-injected gasket with the general body of the cone, this over-injected gasket being arranged between the cone and a corresponding coupling of the fan with the ventilation tubes. 15
3. The in-line helicocentrifugal fan according to claims 1 and 2, wherein the cones comprise peripheral annular ribs that form an ideal cylinder with an outer diameter corresponding to the inner diameter of the cylindrical casing.
4. The in-line helicocentrifugal fan according to any one of claims 1 to 3, 20 wherein the cylindrical casing incorporates therein a tubular sheath surrounding the electric motor, said tubular sheath comprising fixed blades on the outer surface thereof oriented in the opposite direction to the impeller and separated from said impeller, acting as guides. 25
5. The in-line helicocentrifugal fan according to claim 2, wherein the couplings comprise a sealing gasket on the outer cylindrical surface thereof.
6. The in-line helicocentrifugal fan according to claim 4, wherein the electric motor has coupled thereto a silent block comprised inside the tubular sheath of 30 the cylindrical casing and attached to the diffuser.
7. The in-line helicocentrifugal fan according to claim 1, substantially as herein described with reference to any embodiment disclosed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201931061A ES2829382B2 (en) | 2019-11-29 | 2019-11-29 | IN-LINE HELICOCENTRIFUGAL FAN |
| PCT/ES2020/070676 WO2021105533A1 (en) | 2019-11-29 | 2020-11-04 | In-line helicocentrifugal fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NZ788656A NZ788656A (en) | 2024-07-05 |
| NZ788656B2 true NZ788656B2 (en) | 2024-10-08 |
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