DE499586C - Device for dampening the noise of the air exiting vacuum cleaners - Google Patents
Device for dampening the noise of the air exiting vacuum cleanersInfo
- Publication number
- DE499586C DE499586C DEA54958D DEA0054958D DE499586C DE 499586 C DE499586 C DE 499586C DE A54958 D DEA54958 D DE A54958D DE A0054958 D DEA0054958 D DE A0054958D DE 499586 C DE499586 C DE 499586C
- Authority
- DE
- Germany
- Prior art keywords
- noise
- dampening
- vacuum cleaners
- air exiting
- paddle wheel
- 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.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
Description
0405504055
Staubsauger mit durch einen Elektromotor angetriebenem Lüfterrad erzeugen bekanntlich während des Betriebes ein stark heulendes und pfeifendes Geräusch, das auf die Umgebung äußerststörend wirkt. In geringemMaße hat man diesen Übelstand schon dadurch beseitigt, daß man für die Triebteile elastische Lagerung durch Federn, Gummipuffer u. dgl. vorsah; eine ausreichende Schalldämpfung wurde jedoch dadurch nicht erzielt.It is known to produce vacuum cleaners with a fan wheel driven by an electric motor loud howling and whistling noise during operation, affecting the surroundings is extremely disturbing. To a small extent this deficiency has already been eliminated by the fact that for the drive parts elastic mounting was provided by springs, rubber buffers and the like; a sufficient one However, this did not achieve sound attenuation.
Zur Schalldämpfung hat man ferner vorgeschlagen, kurz vor der Ausströmöffnung des Staubsaugers Drahtsiebe mit dazwischenliegender Filzschicht anzuordnen. Von dieser Ein- »5 richtung ist aber auch eine weitgehende Schalldämpfung nicht zu erwarten, da die Dämpfungsvorrichtung zu weit von dem eigentlichen Erzeuger des Geräusches, dem Windrade, entfernt ist. Auch wird durch die mehrfache Anordnung der Drahtsiebe und vor allem durch den Filz der Luftstrom gedrosselt und dadurch die Saugwirkung des Staubsaugers beeinträchtigt.For sound absorption, it has also been proposed shortly before the outflow opening of the Vacuum cleaner's wire screens with a layer of felt in between. From this one »5 direction, however, extensive sound attenuation is not to be expected, since the attenuation device is too far away from the actual generator of the noise, the wind turbine. Also is due to the multiple arrangement the wire screens and, above all, the air flow through the felt, and thus the suction effect of the vacuum cleaner.
Gegenstand der Erfindung ist eine Einrichtung an Staubsaugern mit elektrisch angetriebenen Windrädern, die fast vollständig geräuschdämpfend wirkt, so daß nur noch ein leises Summen des Motors und der ausgestoßenen Luft hörbar ist. Dies wird dadurch erreicht, daß die siebartige bzw. gelochte Wand das Schaufelrad in geringem Abstand so umgibt, daß sie von der aus dem Schaufelrad austretenden Luft ohne wesentlichen Richtungswechsel durchströmt wird. Es wird hierdurch bei Erzielung einer guten Schalldämpfung der Luftstrom in für die Saugwirkung ganz unschädlichem Maße gedrosselt.The invention relates to a device on vacuum cleaners with electrically driven Wind turbines, which almost completely dampen the noise, so that only a quiet one The hum of the engine and the exhaust air can be heard. This is achieved in that the sieve-like or perforated wall surrounds the paddle wheel at a small distance so that it is of the Air exiting the paddle wheel flows through it without any significant change of direction will. In this way, the air flow in for is achieved while achieving good sound attenuation the suction is throttled to a completely harmless extent.
In der Zeichnung ist eine beispielsweise Ausführungsform schematisch im Schnitt dargestellt. Das Schaufelrad s des Gebläses ist auf der Welle w befestigt und läuft im Betrieb im Uhrzeigerdrehsinne um. Das Gehäuse des Gebläses ist als Diffusor mit spiralenförmiger Wand cZ ausgebildet. Rings um das Schaufelrad s ist in einigem Abstande eine siebartig durchbrochene Wand g, beispielsweise aus Drahtgaze, angeord- Ί5 net, durch die die von dem Schaufelrad ausgestoßene Luft hindurchgehen muß, wodurch eine fast vollständige Geräuschdämpfung erzielt wird.In the drawing, an example embodiment is shown schematically in section. The impeller s of the fan is attached to the shaft w and rotates clockwise during operation. The housing of the fan is designed as a diffuser with a spiral-shaped wall cZ. Around the paddle wheel s a sieve-like perforated wall g, for example made of wire gauze, is arranged at some distance, through which the air expelled by the paddle wheel must pass, whereby an almost complete noise attenuation is achieved.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA54958D DE499586C (en) | Device for dampening the noise of the air exiting vacuum cleaners |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA54958D DE499586C (en) | Device for dampening the noise of the air exiting vacuum cleaners |
Publications (1)
Publication Number | Publication Date |
---|---|
DE499586C true DE499586C (en) | 1930-06-10 |
Family
ID=6939759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA54958D Expired DE499586C (en) | Device for dampening the noise of the air exiting vacuum cleaners |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE499586C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3628882A (en) * | 1968-12-20 | 1971-12-21 | Electrolux Ab | Centrifugal fan structure |
DE3023630A1 (en) * | 1980-04-18 | 1981-10-22 | Shop-Vac Corp., Williamsport, Pa. | NOISE-ABSORBING BLOWER MOTOR HOUSING FOR VACUUM CLEANER OR THE LIKE |
US6219880B1 (en) | 1998-09-17 | 2001-04-24 | Pullman-Holt Corporation | Vacuum cleaner |
-
0
- DE DEA54958D patent/DE499586C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3628882A (en) * | 1968-12-20 | 1971-12-21 | Electrolux Ab | Centrifugal fan structure |
DE3023630A1 (en) * | 1980-04-18 | 1981-10-22 | Shop-Vac Corp., Williamsport, Pa. | NOISE-ABSORBING BLOWER MOTOR HOUSING FOR VACUUM CLEANER OR THE LIKE |
US6219880B1 (en) | 1998-09-17 | 2001-04-24 | Pullman-Holt Corporation | Vacuum cleaner |
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