DE92384C - - Google Patents
Info
- Publication number
- DE92384C DE92384C DENDAT92384D DE92384DA DE92384C DE 92384 C DE92384 C DE 92384C DE NDAT92384 D DENDAT92384 D DE NDAT92384D DE 92384D A DE92384D A DE 92384DA DE 92384 C DE92384 C DE 92384C
- Authority
- DE
- Germany
- Prior art keywords
- rotation
- air
- fan
- angular
- wings
- 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.)
- Active
Links
- 239000002184 metal Substances 0.000 description 4
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
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
- F04D29/36—Blade mountings adjustable
- F04D29/362—Blade mountings adjustable during rotation
- F04D29/364—The blades having only a predetermined number of possible positions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die im Nachstehenden beschriebenen Ventilatorconstructionen bezwecken, dafs unabhängig von der Drehrichtung des Fächers die Bewegung der Luft stets in der gleichen axialen . Richtung erfolgt.The fan constructions described below aim that, regardless of the direction of rotation of the fan, the movement of the air always in the same axial direction . Direction takes place.
Der Ventilator (Fig. 1 und 2) trägt auf seiner Nabe an Stelle der gebräuchlichen Schraubenflügel Blechwinkel F, die man sich dadurch entstanden denken kann, dafs zwei Schraubenventilatoren, der eine für Rechts-, der andere für Linkslauf in einen einzigen vereinigt wurden. Dreht sich die ganze Anordnung in der Richtung des Pfeiles P, so kommen nur die Flächen α der Blechwinkel F zur Wirkung und es wird die Luft in der Richtung des Pfeiles S bewegt. Dreht sich die Anordnung in entgegengesetzter Richtung' (Pfeil P'), so kommen nur die Flächen b der Blechwinkel zur Wirkung und deshalb bleibt die Richtung des Luftstromes S' gleich der vorigen Richtung S. The fan (Fig. 1 and 2) has on its hub, instead of the usual screw blades, sheet metal angles F, which can be imagined as a result of the fact that two screw fans, one for right-hand rotation, the other for left-hand rotation, have been combined into a single one. If the whole arrangement rotates in the direction of the arrow P, only the surfaces α of the sheet metal angles F come into effect and the air is moved in the direction of the arrow S. If the arrangement rotates in the opposite direction '(arrow P'), only the surfaces b of the sheet metal angles come into effect and therefore the direction of the air flow S ' remains the same as the previous direction S.
Dieselbe Richtung läfst sich auch durch die Ausführung Fig. 2 und 3 unter Verwendung nur eines Bleches an Stelle der Winkel F erzielen. Eine Nabe N trägt eine Anzahl radialer Stifte R, um welche sich in einem Scharnier die Flügelbleche G innerhalb der beiden Anschläge C D frei drehen können. Wird das System in der Pfeilrichtung T gedreht und war der Stand der Bleche G ein beliebiger, so werden dieselben infolge des Luftwiderstandes bis an die Anschläge C gedrückt, an welchen sie fest anliegen. Die Luft wird daher in der Pfeilrichtung bewegt. Findet die Drehung entgegengesetzt statt, so werden auf gleiche Weise die Flügel an die Anschläge D angelegt und die Luft wird wieder in derselben Richtung wie oben bewegt. Bei der Umkehr der Bewegungsrichtung wird das Umschlagen der Flügel noch durch die Wirkung der Trägheit erleichtert.The same direction can also be achieved by the embodiment of FIGS. 2 and 3 using only one sheet instead of the angle F. A hub N carries a number of radial pins R around which the wing plates G can rotate freely within the two stops CD in a hinge. If the system is rotated in the direction of the arrow T and the position of the metal sheets G was arbitrary, then, due to the air resistance, they are pressed as far as the stops C, on which they rest firmly. The air is therefore moved in the direction of the arrow. If the rotation takes place in the opposite direction, the wings are placed against the stops D in the same way and the air is moved again in the same direction as above. When the direction of movement is reversed, the turning of the wings is made easier by the effect of inertia.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE92384C true DE92384C (en) |
Family
ID=363908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT92384D Active DE92384C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE92384C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3248760A1 (en) * | 1982-12-31 | 1984-07-12 | Siemens AG, 1000 Berlin und 8000 München | AXIAL FAN WITH SELF-ADJUSTING FAN BLADES |
US4846261A (en) * | 1987-11-05 | 1989-07-11 | Karjasuo Oy | Vacuum heat exchange apparatus for ventilation of buildings, in particularly of animal sheds |
EP1070850A1 (en) * | 1999-07-23 | 2001-01-24 | Maytronics Ltd. | Rotary impeller |
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0
- DE DENDAT92384D patent/DE92384C/de active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3248760A1 (en) * | 1982-12-31 | 1984-07-12 | Siemens AG, 1000 Berlin und 8000 München | AXIAL FAN WITH SELF-ADJUSTING FAN BLADES |
US4515511A (en) * | 1982-12-31 | 1985-05-07 | Siemens Aktiengesellschaft | Axial fan with blades that automatically adjust to the direction of rotation |
US4846261A (en) * | 1987-11-05 | 1989-07-11 | Karjasuo Oy | Vacuum heat exchange apparatus for ventilation of buildings, in particularly of animal sheds |
EP1070850A1 (en) * | 1999-07-23 | 2001-01-24 | Maytronics Ltd. | Rotary impeller |
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