DE937611C - Axial fan made of acid-proof plastic with an electric motor built into the fan, especially for pumping acidic media - Google Patents

Axial fan made of acid-proof plastic with an electric motor built into the fan, especially for pumping acidic media

Info

Publication number
DE937611C
DE937611C DEH6863A DEH0006863A DE937611C DE 937611 C DE937611 C DE 937611C DE H6863 A DEH6863 A DE H6863A DE H0006863 A DEH0006863 A DE H0006863A DE 937611 C DE937611 C DE 937611C
Authority
DE
Germany
Prior art keywords
fan
electric motor
acid
housing
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.)
Expired
Application number
DEH6863A
Other languages
German (de)
Inventor
Ernst Huerner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEH6863A priority Critical patent/DE937611C/en
Application granted granted Critical
Publication of DE937611C publication Critical patent/DE937611C/en
Expired legal-status Critical Current

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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

Die Erfindung betrifft einen elektrisch angetriebenen Axiallüfter aus Kunststoff mit ins Schaufelrad eingebautem und in säurebeständigem Kunststoff vollständig gekapseltem Elektromotor, der vor allem für das Fördern korrodierend wirkender, insbesondere säurehaltiger Medien 'Verwendung finden soll. Infolge fehlender Motorkühlung wurden. derartige Lüfter bisher nicht gebaut..The invention relates to an electrically driven axial fan Made of plastic with an acid-resistant plastic built into the paddle wheel fully encapsulated electric motor, which is mainly used for conveying corrosive acting, especially acidic media 'should be used. As a result of missing Engine cooling were. such fans have not been built yet.

Im allgemeinen half man sich, daß das. Schaufelrad durch eine verlängerte Welle von einem außerhalb des.Ventilatorgehäuses liegenden und somit der Korrosionsgefahr entzogenen Motor angetrieben wurde. Diese Konstruktion hat jedoch strömungstechniische Nachteile und somit bedeutende Leistungsverluste.In general, people helped themselves to lengthen the paddle wheel with one Shaft from a outside of the fan housing and thus the risk of corrosion withdrawn engine was driven. However, this construction has fluidic Disadvantages and thus significant performance losses.

Gemäß Erfindung wird der Elektromotor innerhalb der Nabe des Schaufelrades gelagert und gegen jede chemische Beeinflussung vollständig in säurefestem Werkstoff gekapselt. Zwecks Kühlung des Motors ist seine Ummantelung mit Abstützrohren versehen, durch: die dem Motor von außerhalb des Lüftergehäuses her Frischluft zugeführt wird, und- zwar :in der Weise, daß der Motor mit der Frischluft nicht nur umspült, sondern vor allem auch durchspült wird.According to the invention, the electric motor is located within the hub of the paddle wheel stored and completely in acid-proof material against any chemical influence capsuled. To cool the motor, its casing is provided with support tubes, by: which fresh air is supplied to the motor from outside the fan housing, namely: in such a way that the engine is not only washed around with the fresh air, but above all, it is also flushed through.

Der Axiallüfter wird an Hand .der Zeichnung, die eine beispielsweise Ausführungsform darstellt, näher beschrieben. In der Zeichnung ist Abb. i ein Längsschnitt durch :den Axiallüfter und Abb. 2 ein Querschnitt nach A-A der Abb. i. Der neue Axiallüfter besteht im wesentlichen aus :dem Lüftergehäus-e i aus einem säurefesten Kunststoff, in :dem axial der Motor 2 angeordnet ist, der in einem ebenfalls aus einem säurefesten Kunststoff bestehenden Gehäuse 3 gelagert ist. Dieses Motorgehäuse besitzt vorzugsweise einen doppelten Mantel 4, 5, von dem der innere Mantel 5 am vorderen Ende mit einigen Durchbohrungen 6 versehen ist, und es wird. :durch drei mit dem Lüftergehä@use i verbundene Stützrohre 7 gehalten. Auf .der Motorwelle 8 sitzt das Schaufelrad 9, idurch :das die abzufordernden Gase oder Dämpfe abgesaugt und weitergedrückt werden. Nach vorn ist das Gehäuse in an! sich bekannter Weise durch eine ,halbkugelförmige Kappe io abgeschlossen., wodurch @d'ie Lüfternabe gegen die unmittelbare Beaufschlagung durch d2.s. angesaugte Medium geschützt wird, und- hinter dem Elektromotor, also in der Strömung der Abgase, ist die den Motor umschließende Ummantelung bei i i düsenartig verjüngt, wadl-urch bei Betrieb im Motorgehäuse starker Unterdruck entsteht und durch die hohlen Stützrohre 7 Frischluft angesaugt wird. Diese Kü'hll.wft strömt, von den Stützrohren 7 kommend, in der angegebenen Pfeilrichtung durch den Spalt zwischen den beiden Mänteln 4, 5, fließt dann durch die Bohrungen 6 in dien Motor und tritt nach dessen Durchströmung durch,die Verjüngung ii wieder aus. Dieser Kühlluftstrom kann noch dadurch gesteigert werden, daß auf das Ende der Motorwelle innerhalb der Verjüngung .ein weiteres Schaufelrad- 12 aufgesetzt wird.The axial fan is based on the drawing, which is an example Embodiment is described in more detail. In the drawing, Fig. I is a longitudinal section through: the axial fan and Fig. 2 a cross-section according to A-A of Fig. i. The new Axial fan consists essentially of: the fan housing-e i made of an acid-proof Plastic, in: which the motor 2 is arranged axially, which is also made of an acid-resistant plastic housing 3 is mounted. This engine case preferably has a double jacket 4, 5, of which the inner jacket 5 on front end is provided with some through holes 6, and it will. : by three with the fan housing i connected support tubes 7 held. On .the motor shaft 8 the paddle wheel 9 is seated, by means of which the gases or vapors to be retrieved are sucked off and continue to be pushed. The housing is in to the front! known way closed by a hemispherical cap io., whereby @ d'ie fan hub against the direct loading by d2.s. sucked in medium is protected, and behind the electric motor, i.e. in the flow of the exhaust gases, is the one surrounding the motor Sheath tapered like a nozzle at i i, but stronger when operated in the motor housing Underpressure is created and fresh air is sucked in through the hollow support tubes 7. This Kü'hll.wft, coming from the support tubes 7, flows in the indicated arrow direction through the gap between the two jackets 4, 5, then flows through the bores 6 in the engine and, after it has flowed through, the taper ii occurs again the end. This cooling air flow can still be increased by the fact that on the end Another paddle wheel 12 is placed on the motor shaft within the taper will.

Claims (3)

PATENTANSPRÜCHE: i. Axiallüfter aus säurefestem Kunststoff mit in den Lüfter eingebautem Elektromotor, insbesondere zur Förderung säurehaltiger Medien, dadurch gekennzeichnet, daß der Elektromotor (2) in einem aus säurefestem Kunststoff bestehenden Gehäuse (3, 4, 5) gelagert ist und dieses axial im Lüftergehäuse (i) durch einige Stützrohre (7) getragen wird, die zwecks Luftzuführung zum Motor einerseits mit der Außenluft und andererseits mit dem Innenraum des Motorgehäuses in Verhindu.ng stehen. PATENT CLAIMS: i. Axial fan made of acid-proof plastic with in The electric motor built into the fan, especially for pumping acidic media, characterized in that the electric motor (2) is made of acid-resistant plastic existing housing (3, 4, 5) and this axially in the fan housing (i) is carried by some support tubes (7), which on the one hand for the purpose of air supply to the engine with the outside air and on the other hand with the interior of the motor housing in Verhindu.ng stand. 2. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß das Lagergehäuse des Motors einen doppelten Mantel besitzt und von diesem der Außenmantel (4) mit den Stützrohren (7) des Motorgehäuses verbunden und der Innenmantel (5) am vorderen Ende mit einigen Durchbohrungen (6) versehen ist. 2. Apparatus according to claim i, characterized in that the bearing housing of the motor has a double jacket and from this the outer jacket (4) with the support tubes (7) of the motor housing and the inner jacket (5) at the front The end is provided with some through holes (6). 3. Vorrichtung nach Anspruch i und 2, dadurch gekennzeichnet, daß das Motorgehäuse hinter dem Elektromotor (2) in der Strömung der Abgase .düsenartig verjüngt ist. Angezogene Druckschriften: Britische Patentechriften Nr. 584 657, 498 314-3. Apparatus according to claim i and 2, characterized in that the motor housing behind the electric motor (2) is tapered like a nozzle in the flow of exhaust gases. Referred publications: British Patent Papers Nos. 584 657, 498 314-
DEH6863A 1950-12-03 1950-12-03 Axial fan made of acid-proof plastic with an electric motor built into the fan, especially for pumping acidic media Expired DE937611C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH6863A DE937611C (en) 1950-12-03 1950-12-03 Axial fan made of acid-proof plastic with an electric motor built into the fan, especially for pumping acidic media

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH6863A DE937611C (en) 1950-12-03 1950-12-03 Axial fan made of acid-proof plastic with an electric motor built into the fan, especially for pumping acidic media

Publications (1)

Publication Number Publication Date
DE937611C true DE937611C (en) 1956-01-12

Family

ID=7144837

Family Applications (1)

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DEH6863A Expired DE937611C (en) 1950-12-03 1950-12-03 Axial fan made of acid-proof plastic with an electric motor built into the fan, especially for pumping acidic media

Country Status (1)

Country Link
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2624923A1 (en) * 1987-12-22 1989-06-23 Bellmann Michel Axial or centrifugal/axial fan for circulating a gas
EP3470683A1 (en) * 2017-10-13 2019-04-17 Ametek, Inc. Motor-fan assembly with improved airflow and noise reduction properties
US10634148B2 (en) 2017-10-13 2020-04-28 Ametek, Inc. Motor-fan assembly with improved airflow and noise reduction properties
US11002282B2 (en) 2017-10-13 2021-05-11 Ametek, Inc. Motor-fan assembly with improved airflow and noise reduction properties
US11131311B2 (en) 2017-10-13 2021-09-28 Ametek, Inc. Motor-fan assembly with improved airflow and noise reduction properties

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB498314A (en) * 1937-07-05 1939-01-05 Svenska Flaektfabriken Ab Improvements in cooling devices for fan bearings
GB584657A (en) * 1945-01-19 1947-01-20 Michael Thaddius Adamtchik Improvements in or relating to axial flow screw fans and the like

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB498314A (en) * 1937-07-05 1939-01-05 Svenska Flaektfabriken Ab Improvements in cooling devices for fan bearings
GB584657A (en) * 1945-01-19 1947-01-20 Michael Thaddius Adamtchik Improvements in or relating to axial flow screw fans and the like

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2624923A1 (en) * 1987-12-22 1989-06-23 Bellmann Michel Axial or centrifugal/axial fan for circulating a gas
EP3470683A1 (en) * 2017-10-13 2019-04-17 Ametek, Inc. Motor-fan assembly with improved airflow and noise reduction properties
CN109667773A (en) * 2017-10-13 2019-04-23 阿美德格公司 Reduce motor-fan component of characteristic with improved air-flow and noise
US10634148B2 (en) 2017-10-13 2020-04-28 Ametek, Inc. Motor-fan assembly with improved airflow and noise reduction properties
US10830244B2 (en) 2017-10-13 2020-11-10 Ametek, Inc. Motor-fan assembly with improved airflow and noise reduction properties
US11002282B2 (en) 2017-10-13 2021-05-11 Ametek, Inc. Motor-fan assembly with improved airflow and noise reduction properties
US11131311B2 (en) 2017-10-13 2021-09-28 Ametek, Inc. Motor-fan assembly with improved airflow and noise reduction properties
US11661945B2 (en) 2017-10-13 2023-05-30 Ametek, Inc. Motor-fan assembly with improved airflow and noise reduction properties

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