EP0922861A2 - Gebläseaggregat - Google Patents
Gebläseaggregat Download PDFInfo
- Publication number
- EP0922861A2 EP0922861A2 EP98123097A EP98123097A EP0922861A2 EP 0922861 A2 EP0922861 A2 EP 0922861A2 EP 98123097 A EP98123097 A EP 98123097A EP 98123097 A EP98123097 A EP 98123097A EP 0922861 A2 EP0922861 A2 EP 0922861A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- blower
- hood
- blower unit
- housing
- drive motor
- 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.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—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
- F04D29/664—Sound attenuation by means of sound absorbing material
-
- 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
- F04D29/023—Selection of particular materials 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
- 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
Definitions
- the invention relates to a blower unit, the at least one of an engine has driven impeller, which of a on a housing part of the Blower unit attached fan hood is surrounded.
- Such a blower unit is known from DE-U-87 12 430. With this Blower unit are the two driven by an electric motor Blower wheels and a guide disk arranged between these blower wheels surrounded by a blower hood.
- This blower hood is with a mounting edge pushed onto a centering rim formed on the housing of the blower unit and is thus held on the housing of the blower unit.
- Fan hoods are manufactured as deep-drawn parts from sheet steel. Such sheet steel hoods have only low noise damping properties and can even act as a sound box to increase noise.
- the invention has for its object a blower unit of the type described Art to improve in that a significant noise reduction is achieved.
- the fan cover consists of a combination of plastic and natural fibers.
- a such a combination of materials results in a hood with a soft spring characteristic. Due to such a soft characteristic, there is a strong noise reduction.
- Fan hoods made from flax fibers have proven to be particularly advantageous blended polypropylene.
- blower unit shown as an exemplary embodiment in the drawing for a vacuum cleaner, the invention will be described in more detail below explained.
- the blower unit shown has an electric drive motor 1 whose shaft rotates at least one impeller, not visible in the drawing is arranged.
- a blower hood 2 is placed over this blower wheel is attached to an intermediate housing 3 connected to the drive motor 1.
- the blower hood 2 has on its side facing away from the drive motor 1 an inlet opening through which air is drawn in by the impeller becomes. The air can either exit via appropriate outlet openings the intermediate housing or on the bearing plate 4 of the drive motor 1.
- the blower hood 2 consists of a material mixture of plastic and natural fibers, especially made of polypropylene, to which flax fibers are added.
- Such Blower hood 2 faces a blower hood made of sheet steel a soft characteristic that leads to a strong noise reduction. Therefore Blower units with such blower hoods are particularly suitable for Use with vacuum cleaners because of their predominant use in the household sector particularly quiet work is desirable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
- 1
- Antriebsmotor
- 2
- Gebläsehaube
- 3
- Zwischengehäuse
- 4
- Lagerschild
Claims (2)
- Gebläseaggregat, das mindestens ein von einem Motor angetriebenes Gebläserad aufweist, welches von einer an einem Gehäuseteil des Gebläseaggregates befestigten Gebläsehaube umgeben ist,
dadurch gekennzeichnet, daß die Gebläsehaube aus einer Materialkombination von Kunststoff und Naturfasern besteht. - Gebläseaggregat nach Anspruch 1,
dadurch gekennzeichnet, daß die Gebläsehaube aus mit Flachsfasern vermischtem Polypropylen besteht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19755172 | 1997-12-11 | ||
DE19755172A DE19755172A1 (de) | 1997-12-11 | 1997-12-11 | Gebläseaggregat |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0922861A2 true EP0922861A2 (de) | 1999-06-16 |
EP0922861A3 EP0922861A3 (de) | 2000-04-12 |
Family
ID=7851626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98123097A Withdrawn EP0922861A3 (de) | 1997-12-11 | 1998-12-10 | Gebläseaggregat |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0922861A3 (de) |
DE (1) | DE19755172A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1306559A1 (de) * | 2001-10-24 | 2003-05-02 | DENSO THERMAL SYSTEMS S.p.A. | Lüftereinheit für Fahrzeuge |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009022819A1 (de) | 2009-05-27 | 2010-12-09 | Wessel-Werk Gmbh | Verwendung von naturfaserverstärktem Kunststoff zur Fertigung von Spritzgussteilen für Staubsaugerdüsen |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8712430U1 (de) | 1987-09-14 | 1989-01-12 | Siemens AG, 1000 Berlin und 8000 München | Gebläseaggregat mit einem zweistufigen Gebläse |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE600692C (de) * | ||||
DE4226988A1 (de) * | 1992-08-14 | 1994-02-17 | Wulfram John Schmucker | Kunststofformteil und Verfahren zu dessen Herstellung |
EP0596379A1 (de) * | 1992-10-31 | 1994-05-11 | Hoechst Aktiengesellschaft | Kunststoff-Formmasse zur Herstellung von Formteilen mit farblich abstimmbarem Dekoreffekt |
FI930424A0 (fi) * | 1993-02-01 | 1993-02-01 | Rakennuspalikka Oy | Fiberarmerad och vaermeisolerande konstruktionsdel |
DE9310087U1 (de) * | 1993-07-07 | 1993-09-23 | Norbert Zewe GmbH, 66557 Illingen | Anordnung eines turbinen-aggregats zur gebaeudetrocknung in einem schalldaemmenden gehaeuse |
DE4331747A1 (de) * | 1993-09-20 | 1995-03-23 | Wuenning Paul | Extrudiertes, faserverstärktes Naturstoff-Granulat zur thermoplastischen Weiterverarbeitung, sowie Verfahren zu seiner Herstellung |
DE4407597A1 (de) * | 1994-03-08 | 1995-09-14 | Thueringisches Inst Textil | Verfahren zur Verbesserung der Haftfestigkeit zwischen cellulosischen Naturfasern und thermoplastischen Kunststoffen |
DE19542498A1 (de) * | 1995-11-15 | 1997-05-22 | Bayer Ag | Mit Naturfasern verstärkte biologisch abbaubare Kunststoffe |
DE19548854C2 (de) * | 1995-12-27 | 1997-10-02 | Ebers & Mueller Fibrit | Verfahren zur Herstellung von Gegenständen aus faserverstärkten Thermoplasten |
DE29713856U1 (de) * | 1997-08-04 | 1997-10-02 | Schüco International KG, 33609 Bielefeld | Voll- oder Hohlprofil aus faserverstärktem Kunststoff |
-
1997
- 1997-12-11 DE DE19755172A patent/DE19755172A1/de not_active Withdrawn
-
1998
- 1998-12-10 EP EP98123097A patent/EP0922861A3/de not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8712430U1 (de) | 1987-09-14 | 1989-01-12 | Siemens AG, 1000 Berlin und 8000 München | Gebläseaggregat mit einem zweistufigen Gebläse |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1306559A1 (de) * | 2001-10-24 | 2003-05-02 | DENSO THERMAL SYSTEMS S.p.A. | Lüftereinheit für Fahrzeuge |
Also Published As
Publication number | Publication date |
---|---|
EP0922861A3 (de) | 2000-04-12 |
DE19755172A1 (de) | 1999-06-17 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
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AX | Request for extension of the european patent |
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PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
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AK | Designated contracting states |
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|
17P | Request for examination filed |
Effective date: 20000913 |
|
AKX | Designation fees paid |
Free format text: DE ES FR GB IT SE |
|
17Q | First examination report despatched |
Effective date: 20021126 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BSH BOSCH UND SIEMENS HAUSGERAETE GMBH |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20050414 |