EP0353744A2 - Air cooler - Google Patents

Air cooler Download PDF

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Publication number
EP0353744A2
EP0353744A2 EP89114296A EP89114296A EP0353744A2 EP 0353744 A2 EP0353744 A2 EP 0353744A2 EP 89114296 A EP89114296 A EP 89114296A EP 89114296 A EP89114296 A EP 89114296A EP 0353744 A2 EP0353744 A2 EP 0353744A2
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EP
European Patent Office
Prior art keywords
air
cooler according
air cooler
baffle
housing
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.)
Granted
Application number
EP89114296A
Other languages
German (de)
French (fr)
Other versions
EP0353744B1 (en
EP0353744A3 (en
Inventor
Paul Jyrek
Helmut Pietsch
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.)
KUEBA KAELTETECHNIK GMBH
Original Assignee
Kueba Kaltetechnik GmbH
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
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Application filed by Kueba Kaltetechnik GmbH filed Critical Kueba Kaltetechnik GmbH
Priority to AT89114296T priority Critical patent/ATE83048T1/en
Publication of EP0353744A2 publication Critical patent/EP0353744A2/en
Publication of EP0353744A3 publication Critical patent/EP0353744A3/en
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Publication of EP0353744B1 publication Critical patent/EP0353744B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/067—Evaporator fan units
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0681—Details thereof

Definitions

  • the invention relates to an air cooler, consisting of a housing having an air inlet and an air outlet side, in which a lamella packet through which coolant pipes are provided, a blower driven by an electric motor, which is arranged in the flow direction of the air behind the lamella packet, and one Air guide grille attached to the air outlet.
  • the object of the invention is to design a ventilation cooler of the type specified at the outset in such a way that, on the one hand, any type of backflow or short-circuit flow is prevented and, on the other hand, the thermal load on the drive motor is reduced.
  • the air baffle has a web mesh structure, the individual openings preferably being polygonal or circular and in particular having a square shape.
  • the webs can have a height in the range from 5 to 20 mm, in particular in the range from 10 to 15 mm.
  • This air baffle not only ensures that any backflow around the housing to the air inlet side is prevented, but it is also achieved by the targeted flow against the electric motor arranged outside the air baffle that, on the one hand, even with increasing load on the fan, it is still very much pronounced flow and thus cooling of the motor is ensured and on the other hand any backflow in the fan hub area is excluded.
  • the air guide grille is held in a collar-shaped, in particular cylindrical, housing attachment.
  • the blower is also preferably made shorter by means of a shorter one in the flow direction in front of the air guide grille and straight struts attached, which leads to a simple, inexpensive and low-vibration overall structure.
  • the cylindrical housing attachment can also serve as a connecting piece for a textile hose, the air discharge via the hose being promoted by the air guide grille being substantially uniform over the entire cross section.
  • the air baffle can be made of a plastic material, as well as used in a metallic design.
  • a heat-conducting connection e.g. B.
  • a press fit connection is created with the drive motor, so that the air grille acts as an additional engine cooling surface.
  • an evaporator in the form of a plate pack 2 is arranged, which is penetrated by pipes carrying coolant and is also equipped with a defrosting device.
  • the preferably cylindrical housing extension 3 is closed off from the outside by an air guide grille 5.
  • the air baffle has a web mesh structure and preferably has square individual openings.
  • the defined inflow of the motor also means that a vacuum is formed on the back of the motor due to the stall effects that occur, which ensures that the flow clings to the motor housing and a defined flow separation takes place in the blow-out direction, thereby eliminating any disruptive backflow effects.
  • the measures according to the invention result in a synergistic interaction of individual effects, which leads to the fact that the time period between the required defrosting processes becomes longer, energy savings can thereby be achieved and the economy of the entire air cooler is further improved by the longer service life of the drive motor which is additionally achieved.

Abstract

An air cooler is described in which an air-guiding grille is provided on the downstream side, between the fan rotor and an electric motor fitted externally, said grille straightening the air flow.

Description

Die Erfindung betrifft einen Luftkühler, bestehend aus einem eine Lufteinlaß- und eine Luftauslaßseite aufweisenden Gehäu­se, in dem ein von Kühlmittel führenden Rohren durchsetztes Lamellenpaket vorgesehen ist, einem von einem Elektromotor angetriebenen Gebläse, das in Strömungsrichtung der Luft hinter dem Lamellenpaket angeordnet ist, sowie einem luftaus­laßseitig angebrachten Luftleitgitter.The invention relates to an air cooler, consisting of a housing having an air inlet and an air outlet side, in which a lamella packet through which coolant pipes are provided, a blower driven by an electric motor, which is arranged in the flow direction of the air behind the lamella packet, and one Air guide grille attached to the air outlet.

Bei bekannten Luftkühlern dieser Art ist von Nachteil, daß sich sowohl um das Gehäuse herum als auch im Nabenbereich des Gebläses eine Rück- bzw. Kurzschlußströmung einstellt, welche die Leistungsfähigkeit des Luftkühlers insbesondere dann stark beeinträchtigt, wenn die Belastung des Gebläses bei zunehmender Vereisung stärker wird. Als Folge davon sind häufigere Abtauphasen erforderlich, die zu einer Erhöhung des Energieverbrauchs führen. Außerdem entsteht durch eine sich einstellende Erhohung der Arbeitstemperatur des An­triebsmotors eine zusätzliche Belastung dieses Motors, die zu einer Verringerung der Lebensdauer führen kann.In known air coolers of this type, it is disadvantageous that a backflow or short-circuit flow occurs both around the housing and in the hub area of the blower, which in particular severely impairs the performance of the air cooler when the load on the blower becomes greater with increasing icing . As a result, more frequent defrosting phases are required, which lead to an increase in energy consumption. In addition, an increase in the working temperature of the drive motor creates an additional load on this motor, which can lead to a reduction in the service life.

Aufgabe der Erfindung ist es, einen Lüftkuhler der eingangs angegebenen Art in der Weise auszubilden, daß einerseits jeg­liche Art einer Rück- bzw. Kurzschlußströmung verhindert und andererseits die Wärmebelastung des Antriebsmotors verrin­gert wird.The object of the invention is to design a ventilation cooler of the type specified at the outset in such a way that, on the one hand, any type of backflow or short-circuit flow is prevented and, on the other hand, the thermal load on the drive motor is reduced.

Gelöst wird diese Aufgabe nach der Erfindung im wesentlichen dadurch, daß das Luftleitgitter zwischen dem Gebläserotor und dem abströmseitig frei zugänglich angebrachten Elektromo­tor angeordnet ist.This object is achieved according to the invention essentially in that the air guide grille is arranged between the fan rotor and the electric motor freely accessible on the downstream side.

Das Luftleitgitter besitzt dabei Stegmaschenstruktur, wobei die Einzelöffnungen vorzugsweise mehreckig oder kreisförmig ausgebildet sind und insbesondere quadratische Form besit­zen. Die Stege können dabei eine Höhe im Bereich von 5 bis 20 mm, insbesondere im Bereich von 10 bis 15 mm besitzen.The air baffle has a web mesh structure, the individual openings preferably being polygonal or circular and in particular having a square shape. The webs can have a height in the range from 5 to 20 mm, in particular in the range from 10 to 15 mm.

Durch dieses Luftleitgitter wird nicht nur erreicht, daß jeg­liche Rückströmung um das Gehäuse herum zur Lufteintrittssei­te hin verhindert wird, sondern es wird auch durch die ge­zielt gerichtete Anströmung des außerhalb des Luftleitgit­ters angeordneten Elektromotors erreicht, daß zum einen eine auch bei zunehmender Belastung des Gebläses noch sehr ausge­prägte Anströmung und damit Kühlung des Motors sicherge­stellt und zum andere jegliche Rückströmung im Ventilator­nabenbereich ausgeschlossen wird.This air baffle not only ensures that any backflow around the housing to the air inlet side is prevented, but it is also achieved by the targeted flow against the electric motor arranged outside the air baffle that, on the one hand, even with increasing load on the fan, it is still very much pronounced flow and thus cooling of the motor is ensured and on the other hand any backflow in the fan hub area is excluded.

Damit wird die Leistungsfähigkeit des Luftkühlers wesentlich erhöht, die Zeitspanne zwischen erforderlichen Abtauvorgän­gen vergrößert, der Gesamtenergieverbrauch verringert und die Gebläselebensdauer erhöht. Außerdem wird aufgrund der freien Züganglichkeit des Motors die Durchführung von Monta­ge- und Anschlußarbeiten erleichtert und auch eine nach ent­sprechend langer Betriebszeit eventuell erforderliche Motor­auswechslung vereinfacht.This significantly increases the performance of the air cooler, increases the time between defrosting operations, reduces overall energy consumption and increases the fan life. In addition, due to the free accessibility of the engine, the implementation of assembly and connection work is facilitated and also an engine replacement that may be required after a correspondingly long operating time is simplified.

Nach einer vorteilhaften Ausführungsform der Erfindung ist das Luftleitgitter in einem kragenförmigen, insbesondere zy­linderisch ausgebildeten Gehäuseansatz gehaltert. In diesem Gehäuseansatz wird vorzugsweise auch das Gebläse mittels in Strömungsrichtung vor dem Luftleitgitter gelegener, kurzer und gerader Streben befestigt, was zu einem einfachen, ko­stengünstigen und schwingungsarmen Gesamtaufbau führt.According to an advantageous embodiment of the invention, the air guide grille is held in a collar-shaped, in particular cylindrical, housing attachment. In this housing approach, the blower is also preferably made shorter by means of a shorter one in the flow direction in front of the air guide grille and straight struts attached, which leads to a simple, inexpensive and low-vibration overall structure.

Der zylindrische Gehäuseansatz kann auch als Anschlußstutzen für einen Textilschlauch dienen, wobei durch die mittels des Luftleitgitters erzielte, über den gesamten Querschnitt im wesentlich gleichförmige Strömung die Luftabführung über den Schlauch begünstigt wird.The cylindrical housing attachment can also serve as a connecting piece for a textile hose, the air discharge via the hose being promoted by the air guide grille being substantially uniform over the entire cross section.

Das Luftleitgitter kann sowohl aus einem Kunststoffmaterial bestehen, als auch in metallischer Ausführung Verwendung fin­den, wobei im Falle der Verwendung eines metallischen Git­ters vorzugsweise eine wärmeleitende Verbindung, z. B. eine Preßsitzverbindung, mit dem Antriebsmotor geschaffen wird, so daß das Luftgleitgitter gleichzeitig als zusätzliche Mo­torkühlfläche wirkt.The air baffle can be made of a plastic material, as well as used in a metallic design. In the case of using a metallic lattice, a heat-conducting connection, e.g. B. a press fit connection is created with the drive motor, so that the air grille acts as an additional engine cooling surface.

Die Erfindung wird nachfolgend anhand eines Ausführungsbei­spiels unter Bezugnahme auf die Zeichnung erläutert, deren einzige Figur eine schematische Darstellung eines Luftküh­lers nach der Erfindung zeigt.The invention is explained below using an exemplary embodiment with reference to the drawing, the single figure of which shows a schematic representation of an air cooler according to the invention.

In einem eine Lufteinlaßseite und eine Luftauslaßseite auf­weisenden Gehäuse 1 ist ein Verdampfer in Form eines Lamel­lenpakets 2 angeordnet, das von Kühlmittel führenden Rohren durchsetzt und auch mit einer Abtaueinrichtung ausgestattet ist.In a housing 1 having an air inlet side and an air outlet side, an evaporator in the form of a plate pack 2 is arranged, which is penetrated by pipes carrying coolant and is also equipped with a defrosting device.

In einem abströmseitigen, kragenförmigen Gehauseansatz 3 ist ein eine Mehrzahl von Flügeln aufweisender Ventilator 4 mit Motor 6 angeordnet, der mittels kurzer, gerader Streben 7 be­festigt ist.A fan 4 with a motor 6, which has a plurality of blades and is fastened by means of short, straight struts 7, is arranged in a downstream, collar-shaped housing attachment 3.

Nach außen hin ist der vorzugsweise zylindrische Gehäusean­satz 3 durch ein Luftleitgitter 5 abgeschlossen.The preferably cylindrical housing extension 3 is closed off from the outside by an air guide grille 5.

Das Luftleitgitter besitzt Stegmaschenstruktur und weist vor­zugsweise quadratische Einzelöffnungen auf. Durch dieses Luftleitgitter wird eine sehr ausgeprägte Gleichrichtung des Luftstroms erzielt, das heißt, es tritt aus dem Luftleitgit­ter 5 praktisch eine Parallelströmung aus, wobei die Richt­wirkung so stark ist, daß selbst bei stark belastetem Geblä­se, das heißt bei erheblicher Vereisung, keinerlei Rückströ­mung um das Gehäuse 1 herum zur Eintrittsseite hin auftritt.The air baffle has a web mesh structure and preferably has square individual openings. By means of this air guide grille, a very pronounced rectification of the air flow is achieved, that is to say that practically a parallel flow emerges from the air guide grille 5, the directivity being so strong that even with a heavily loaded fan, that is to say with considerable icing, no backflow around it Housing 1 occurs around the entry side.

Von wesentlicher Bedeutung ist die Anordnung des Elektromo­tors 6 außerhalb des bezüglich der Rotorflügel 4 auch eine Berühungsschutzfunktion erfüllenden Luftleitgitters 5.The arrangement of the electric motor 6 outside the air grille 5, which also fulfills a contact protection function with respect to the rotor blades 4, is of essential importance.

Da die Richtwirkung des Luftleitgitters 5 auch eine gezielte und definierte Anströmung des Motors 6 zur Folge hat und diese gezielte Anströmung auch noch bei stark belastetem Ge­blase gegeben ist, wird eine sehr erwünschte Konvektionsküh­lung des Motors 6 erhalten, die dessen Lebensdauer wesent­lich erhöhen kann.Since the directional effect of the air grille 5 also results in a targeted and defined flow to the motor 6 and this targeted flow is also provided when the blower is under heavy load, a very desirable convection cooling of the motor 6 is obtained, which can significantly increase its service life.

Die definierte Anströmung des Motors hat auch zur Folge, daß motorsrückseitig aufgrund auftretender Strömungsabrißeffekte eine Unterdruckausbildung erfolgt, die sicherstellt, daß ein Anschmiegen der Strömung an das Motorgehäuse und eine defi­nierte Strömungsablösung in Ausblasrichtung erfolgt, wodurch jegliche störenden Rückströmeffekte ausgeschaltet werden.The defined inflow of the motor also means that a vacuum is formed on the back of the motor due to the stall effects that occur, which ensures that the flow clings to the motor housing and a defined flow separation takes place in the blow-out direction, thereby eliminating any disruptive backflow effects.

Durch die erfindungsgemäßen Maßnahmen ergibt sich ein syner­gistisches Zusammenwirken einzelener Effekte, das dazu führt, daß die Zeitspanne zwischen erforderlichen Abtauvor­gängen größer wird, sich dadurch eine Energieeinsparung er­zielen läßt und die Wirtschaftlichkeit des gesamten Luftküh­lers noch durch die zusätzlich erreichte größere Standzeit des Antriebsmotors verbessert wird.The measures according to the invention result in a synergistic interaction of individual effects, which leads to the fact that the time period between the required defrosting processes becomes longer, energy savings can thereby be achieved and the economy of the entire air cooler is further improved by the longer service life of the drive motor which is additionally achieved.

BezugszeichenlisteReference symbol list

  • 1 Gehäuse1 housing
  • 2 Lamellenblock2 slat block
  • 3 Gehäuseansatz3 housing attachment
  • 4 Ventilator4 fan
  • 5 Luftleitgitter5 air baffle
  • 6 Elektromotor6 electric motor
  • 7 Befestigungsstreben7 struts

Claims (10)

1. Luftkühler, bestehend aus einem eine Lufteinlaß- und eine Luftauslaßseite aufweisenden Gehäuse, in dem ein von Kühlmittel führenden Rohren durchsetztes Lamel­lenpaket vorgesehen ist, einem von einem Elektromotor an­getriebenen Gebläse, das in Strömungsrichtung der Luft hinter dem Lamellenpaket angeordnet ist, sowie einem luftauslaßseitig angebrachten Luftleitgitter,
dadurch gekennzeichnet,
daß das Luftleitgitter (5) zwischen dem Gebläserotor (4) und dem abströmseitig frei zugänglich angebrachten Elek­tromotor (6) angeordnet ist.1. Air cooler, consisting of a housing having an air inlet and an air outlet side, in which a lamellar packet through which coolant pipes are provided, a fan driven by an electric motor, which is arranged in the direction of flow of air behind the lamellar packet, and an air outlet side Air baffle,
characterized by
that the air baffle (5) is arranged between the fan rotor (4) and the freely accessible electric motor (6). 2. Luftkühler nach Anspruch 1,
dadurch gekennzeichnet,
daß das Luftleitgitter (5) Stegmaschenstruktur mit mehr­eckigen oder kreisförmigen Einzelöffnungen besitzt.2. Air cooler according to claim 1,
characterized by
that the air baffle (5) has web mesh structure with polygonal or circular individual openings. 3. Luftkuhler nach Anspruch 2,
dadurch gekennzeichnet,
daß die Einzelöffnungen quadratisch ausgebildet sind und die Höhe der diese Öffnungen begrenzenden Stege insbeson­dere etwa 10 bis 15 mm beträgt.3. Air cooler according to claim 2,
characterized by
that the individual openings are square and the height of the webs delimiting these openings is in particular about 10 to 15 mm. 4. Luftkühler nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß das Luftleitgitter (5) in einem kragenförmigen Gehäu­seansatz (3) gehaltert ist.4. Air cooler according to one of the preceding claims,
characterized by
that the air guide grille (5) is held in a collar-shaped housing extension (3). 5. Luftkühler nach Anspruch 4,
dadurch gekennzeichnet,
daß der Gehäuseansatz (3) zylindrisch ausgebildet ist.5. Air cooler according to claim 4,
characterized by
that the housing extension (3) is cylindrical. 6. Luftkühler nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß das Gebläse (4, 5) mittels insbesondere gerader, in Strömungsrichtung vor dem Luftleitgitter (5) gelegener Streben (7) im Gehäuseansatz (5) befestigt ist.6. Air cooler according to one of the preceding claims,
characterized by
that the fan (4, 5) is fastened in the housing attachment (5) by means of in particular straight struts (7) located in the flow direction in front of the air guide grille (5). 7. Luftkühler nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß der zylindrische Gehäuseansatz (7) als Schlauchan­satzstutzen ausgebildet ist.7. Air cooler according to one of the preceding claims,
characterized by
that the cylindrical housing shoulder (7) is designed as a hose connector. 8. Luftkühler nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß das Luftleitgitter (5) aus Kunststoff besteht.8. Air cooler according to one of the preceding claims,
characterized by
that the air baffle (5) is made of plastic. 9. Luftkühler nach einem oder mehreren der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß das Luftleitgitter (5) aus Metall besteht und wärme­leitend mit dem Antriebsmotor (6) verbunden ist.9. Air cooler according to one or more of claims 1 to 7,
characterized by
that the air baffle (5) consists of metal and is thermally connected to the drive motor (6). 10. Luftkühler nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß das Luftleitgitter (5) eine Ausnehmung aufweist, in die sich der Elektromotor (6) erstreckt.10. Air cooler according to one or more of the preceding claims,
characterized by
that the air baffle (5) has a recess into which the electric motor (6) extends.
EP89114296A 1988-08-04 1989-08-02 Air cooler Expired - Lifetime EP0353744B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89114296T ATE83048T1 (en) 1988-08-04 1989-08-02 AIR COOLER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3826588A DE3826588A1 (en) 1988-08-04 1988-08-04 AIR COOLER
DE3826588 1988-08-04

Publications (3)

Publication Number Publication Date
EP0353744A2 true EP0353744A2 (en) 1990-02-07
EP0353744A3 EP0353744A3 (en) 1990-03-28
EP0353744B1 EP0353744B1 (en) 1992-12-02

Family

ID=6360274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89114296A Expired - Lifetime EP0353744B1 (en) 1988-08-04 1989-08-02 Air cooler

Country Status (5)

Country Link
EP (1) EP0353744B1 (en)
AT (1) ATE83048T1 (en)
DE (2) DE3826588A1 (en)
ES (1) ES2037351T3 (en)
GR (1) GR3006642T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013156011A1 (en) * 2012-04-19 2013-10-24 Rittal Gmbh & Co. Kg Cooling apparatus for control cabinet cooling
CN104848636A (en) * 2015-06-08 2015-08-19 上海海洋大学 Flow scattering partition for improving uniformity of air flow of refrigeration house

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4030452A1 (en) * 1990-09-26 1992-04-02 Schmitz Kuehler Baierbrunn AIR COOLER

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB584657A (en) * 1945-01-19 1947-01-20 Michael Thaddius Adamtchik Improvements in or relating to axial flow screw fans and the like
FR1221137A (en) * 1958-02-26 1960-05-31 C V Hill & Company Evaporator unit and fan for refrigeration devices
DE2242988A1 (en) * 1972-09-01 1974-03-07 Siemens Ag AXIAL FAN
GB2049161A (en) * 1979-04-30 1980-12-17 Martin D Air circulating device for mixing room air
US4548548A (en) * 1984-05-23 1985-10-22 Airflow Research And Manufacturing Corp. Fan and housing
DE8802501U1 (en) * 1988-02-26 1988-04-14 Jenner, Herbert, 5459 Anhausen, De

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB584657A (en) * 1945-01-19 1947-01-20 Michael Thaddius Adamtchik Improvements in or relating to axial flow screw fans and the like
FR1221137A (en) * 1958-02-26 1960-05-31 C V Hill & Company Evaporator unit and fan for refrigeration devices
DE2242988A1 (en) * 1972-09-01 1974-03-07 Siemens Ag AXIAL FAN
GB2049161A (en) * 1979-04-30 1980-12-17 Martin D Air circulating device for mixing room air
US4548548A (en) * 1984-05-23 1985-10-22 Airflow Research And Manufacturing Corp. Fan and housing
DE8802501U1 (en) * 1988-02-26 1988-04-14 Jenner, Herbert, 5459 Anhausen, De

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013156011A1 (en) * 2012-04-19 2013-10-24 Rittal Gmbh & Co. Kg Cooling apparatus for control cabinet cooling
US9883608B2 (en) 2012-04-19 2018-01-30 Rittal Gmbh & Co. Kg Cooling device for cooling a switchgear cabinet
CN104848636A (en) * 2015-06-08 2015-08-19 上海海洋大学 Flow scattering partition for improving uniformity of air flow of refrigeration house

Also Published As

Publication number Publication date
DE3826588A1 (en) 1990-02-08
GR3006642T3 (en) 1993-06-30
EP0353744B1 (en) 1992-12-02
ES2037351T3 (en) 1993-06-16
ATE83048T1 (en) 1992-12-15
DE58902866D1 (en) 1993-01-14
EP0353744A3 (en) 1990-03-28

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