SE305711B - - Google Patents
Info
- Publication number
- SE305711B SE305711B SE581061A SE581061A SE305711B SE 305711 B SE305711 B SE 305711B SE 581061 A SE581061 A SE 581061A SE 581061 A SE581061 A SE 581061A SE 305711 B SE305711 B SE 305711B
- Authority
- SE
- Sweden
- Prior art keywords
- air
- fibrous material
- impeller
- flow
- motor
- Prior art date
Links
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
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
- F04D17/167—Operating by means of fibrous or porous elements, e.g. with sponge rotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
988,854. Centrifugal fans. JUNKER & RUH A.G. April 14, 1961 [June 2, 1960], No. 13437/61. Heading F1C. [Also in Division H2] An air current is produced by leading the air to an impulse-exchanging rotor in the form of a fibrous unit which separates intake and pressure chambers, the air being deflected, on flowing radially through the unit, in such a manner that the mechanical energy of rotation of the unit is connected into flow energy of the air. Fig. 3 shows a fan in which the impeller comprises a ring 32 of felt or other fibrous material in which the fibres are preferably arranged along the peripheral direction whereby the air passing through the fibrous material is acted on by frictional forces only. In passing through the volute 33, the air cools the driving motor 36. A rotary deflector 34 may be provided to direct the air flow around the motor. In addition, a stationary deflector (not shown) extends from the cut-off of the volute towards the motor. The air is filtered by the fibrous material, which may be a plastics material so as to receive an electrostatic charge which enhances the filtering. The elimination of fan blades reduces noise, and the flow is stable at all rates of flow. The impeller may be provided with a humidifying device, the large area of contact between the air and the fibrous material allowing the air to be readily humidified or evaporatively cooled. The fibrous material may be in the form of a disc instead of a ring. In the embodiment shown in Fig. 5, the fibrous disc 63 is carried by an impeller including a conical portion 63a serving as the rotating inner wall of an annular diffuser through which the air is discharged in an axial direction. Some of the air returns from the diffuser in the direction of the arrows 72 to cool the driving motor 71, re-entering the impeller through by-pass openings 69. Heating filaments or condenser coils may be introduced into the exhaust cross-section without producing noise by interference with the air flow. In a further embodiment, Fig. 8, the impeller comprises three rings 107 of fibrous material, resting loosely within a reticulated container 102 and readily removable for cleaning purposes. The container 102 is carried by the external rotor 101 of a driving motor, the stationary shaft 103 of the motor being supported by springs 104 and rubber bushes 105.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEJ18225A DE1225808B (en) | 1960-06-02 | 1960-06-02 | Runner for centrifugal blower, which consists of a body traversed by narrow channels in the conveying direction |
Publications (1)
Publication Number | Publication Date |
---|---|
SE305711B true SE305711B (en) | 1968-11-04 |
Family
ID=7199755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE581061A SE305711B (en) | 1960-06-02 | 1961-06-02 |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE604036A (en) |
CH (1) | CH409225A (en) |
DE (1) | DE1225808B (en) |
GB (1) | GB988854A (en) |
SE (1) | SE305711B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7907324A (en) * | 1979-10-02 | 1981-04-06 | Indola Electric Bv | HUMIDIFIER. |
SE444838B (en) * | 1983-07-28 | 1986-05-12 | Drester Ab | AIR-DRIVE ENGINE FOR PUMP DRIVING |
NL8902346A (en) * | 1989-09-20 | 1991-04-16 | Jacob Van De Laar | DEVICE FOR MOVING FLUIDA. |
DE10302773B3 (en) * | 2003-01-17 | 2004-03-11 | Institut für Luft- und Kältetechnik gemeinnützige Gesellschaft mbH | Impeller and idler wheels for flow machines, especially compressors and fans, are made from solid matrix with flow channels in which deflection of flow and associated pressure increase take place |
FR2850037B1 (en) * | 2003-01-17 | 2006-07-28 | Simon Francois | ROTARY MACHINE FOR GENERATING AN ADJUSTABLE FLUID FLOW AND CAPABLE OF CLEANING |
SI22894A (en) * | 2008-10-06 | 2010-04-30 | Domel Elektromotorji In Gospodinjski Aparat, D.D. | Rotor of centrifugal turbomachine |
DE102009002416A1 (en) * | 2009-04-16 | 2010-10-21 | Robert Bosch Gmbh | fan module |
CN105090103A (en) * | 2014-05-20 | 2015-11-25 | 奇鋐科技股份有限公司 | Fan blade structure and cooling fan with same |
JP2019148180A (en) * | 2018-02-26 | 2019-09-05 | 日本電産株式会社 | Centrifugal fan |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE204863C (en) * | ||||
DE349035C (en) * | 1922-02-22 | Ernst Nagy | Fan with centrifugal air cells for cleaning dirty air with an automatic humidifier | |
US1769260A (en) * | 1926-09-22 | 1930-07-01 | Burton S Hughes | Centrifugal compressor |
DE548474C (en) * | 1930-08-30 | 1932-04-13 | Siemens Schuckertwerke Akt Ges | Blower wheel |
FR866706A (en) * | 1940-04-30 | 1941-08-30 | Improvement in turbo-machines | |
US2272746A (en) * | 1940-10-02 | 1942-02-10 | Gen Electric | Air purifying unit |
US2411816A (en) * | 1944-05-16 | 1946-11-26 | Bendix Aviat Corp | Centrifugal blower |
US2509376A (en) * | 1945-12-13 | 1950-05-30 | Trask Allen | Compressor |
DE951033C (en) * | 1951-05-10 | 1956-10-18 | Dr Peter Schlumbohm | Friction pump |
-
1960
- 1960-06-02 DE DEJ18225A patent/DE1225808B/en active Pending
-
1961
- 1961-03-29 CH CH387861A patent/CH409225A/en unknown
- 1961-04-14 GB GB1343761A patent/GB988854A/en not_active Expired
- 1961-05-19 BE BE604036A patent/BE604036A/en unknown
- 1961-06-02 SE SE581061A patent/SE305711B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
GB988854A (en) | 1965-04-14 |
CH409225A (en) | 1966-03-15 |
DE1225808B (en) | 1966-09-29 |
BE604036A (en) | 1961-09-18 |
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