AT122284B - Electric machine with radial air ducts. - Google Patents

Electric machine with radial air ducts.

Info

Publication number
AT122284B
AT122284B AT122284DA AT122284B AT 122284 B AT122284 B AT 122284B AT 122284D A AT122284D A AT 122284DA AT 122284 B AT122284 B AT 122284B
Authority
AT
Austria
Prior art keywords
air ducts
air
radial air
electric machine
ducts
Prior art date
Application number
Other languages
German (de)
Inventor
E H Dipl Ing Moritz D Schenkel
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT122284B publication Critical patent/AT122284B/en

Links

Landscapes

  • Iron Core Of Rotating Electric Machines (AREA)
  • Motor Or Generator Frames (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Elektrische Maschine mit radialen Luftkanälen. 



   Bei elektrischen Maschinen mit radialen Luftkanälen treten zuweilen lästige Geräusche auf. Diese rühren von der Kantenwirkung her, die sich ergibt, wenn Luft über eine Kante wegstreicht, wenn sie von einem engen Luftkanal ins Freie getrieben wird. Besonders stark wird diese Wirkung, wenn ausserdem der Ausströmstelle wieder Kanten gegenüberstehen, wie dies am Luftspalt zwischen Läufer und Ständer der Maschinen mit radialen Luftkanälen in diesen beiden Teilen der Fall ist. Nach der Erfindung wird das störende Geräusch dadurch verhindert oder gemildert, dass die Luftkanäle an den Austrittsstellen der Luft   allmählich   erweitert werden. 



   Ein Ausführungsbeispiel ist in der Zeichnung veranschaulicht. Diese zeigt den Ständer s einer Dynamomaschine mit radialen Luftkanälen le und den Läufer   l'mit   radialen Luftkanälen c. 



  Nach der Erfindung sind die Kanäle le und c an den Austrittsstellen der Luft allmählich erweitert. Ausserdem sind die Radialkanäle des Ständers auch an den Eintrittsstellen der Luft am Luftschlitz p zwischen Ständer und Läufer allmählich erweitert, so dass an dieser Stelle scharfe Kanten überhaupt vermieden sind und die Luft aus den schmalen Läuferkanälen in die schmalen Ständerkanäle ganz oder nahezu geräuschlos übertreten kann. 



   PATENT-ANSPRÜCHE :
1. Elektrische Maschine mit radialen Luftkanälen im Läufer und Ständer, dadurch gekennzeichnet, dass die Luftkanäle (c,   le)   eines oder beider aktiver Eisenkörper an den Luftaustrittsstellen allmählich erweitert sind. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Electric machine with radial air ducts.



   In the case of electrical machines with radial air ducts, annoying noises sometimes occur. These are due to the edge effect that results when air sweeps over an edge when it is driven into the open through a narrow air duct. This effect is particularly strong if the outflow point is also opposite edges, as is the case at the air gap between the rotor and the stand of the machines with radial air ducts in these two parts. According to the invention, the annoying noise is prevented or reduced in that the air ducts are gradually widened at the outlet points for the air.



   An exemplary embodiment is illustrated in the drawing. This shows the stator s of a dynamo machine with radial air ducts le and the rotor l 'with radial air ducts c.



  According to the invention, the channels le and c are gradually widened at the outlet points for the air. In addition, the radial channels of the stator are also gradually widened at the entry points of the air at the air slot p between the stator and rotor, so that sharp edges are avoided at all at this point and the air can pass from the narrow rotor ducts into the narrow stator ducts completely or almost silently.



   PATENT CLAIMS:
1. Electrical machine with radial air ducts in the rotor and stator, characterized in that the air ducts (c, le) of one or both of the active iron bodies are gradually widened at the air outlet points.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

2. Elektrische Maschine nach Anspruch 1, dadurch gekennzeichnet, dass die radialen Luftkanäle des Ständers auch an den Lufteintrittsstellen am Luftschlitz (p) erweitert sind. EMI1.1 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 2. Electrical machine according to claim 1, characterized in that the radial air ducts of the stator are also widened at the air inlet points on the air slot (p). EMI1.1 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT122284D 1926-12-15 1927-12-13 Electric machine with radial air ducts. AT122284B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE122284X 1926-12-15

Publications (1)

Publication Number Publication Date
AT122284B true AT122284B (en) 1931-04-10

Family

ID=5657287

Family Applications (1)

Application Number Title Priority Date Filing Date
AT122284D AT122284B (en) 1926-12-15 1927-12-13 Electric machine with radial air ducts.

Country Status (1)

Country Link
AT (1) AT122284B (en)

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