EP0074514B1 - Arrangement d'un dispositif de refroidissement et d'un moteur avec un ventilateur fixé sur son arbre, notamment pour une installation à compresseur à vis - Google Patents

Arrangement d'un dispositif de refroidissement et d'un moteur avec un ventilateur fixé sur son arbre, notamment pour une installation à compresseur à vis Download PDF

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Publication number
EP0074514B1
EP0074514B1 EP82107648A EP82107648A EP0074514B1 EP 0074514 B1 EP0074514 B1 EP 0074514B1 EP 82107648 A EP82107648 A EP 82107648A EP 82107648 A EP82107648 A EP 82107648A EP 0074514 B1 EP0074514 B1 EP 0074514B1
Authority
EP
European Patent Office
Prior art keywords
cooler
arrangement
ventilator
drive motor
cooling air
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
EP82107648A
Other languages
German (de)
English (en)
Other versions
EP0074514A1 (fr
Inventor
Rudolf Hofmann
Kurt Magdhuber
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.)
ISARTALER SCHRAUBENKOMPRESSOREN GmbH
Original Assignee
ISARTALER SCHRAUBENKOMPRESSOREN 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6141829&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0074514(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ISARTALER SCHRAUBENKOMPRESSOREN GmbH filed Critical ISARTALER SCHRAUBENKOMPRESSOREN GmbH
Publication of EP0074514A1 publication Critical patent/EP0074514A1/fr
Application granted granted Critical
Publication of EP0074514B1 publication Critical patent/EP0074514B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/045—Heating; Cooling; Heat insulation of the electric motor in hermetic pumps

Definitions

  • the invention relates to an arrangement of cooler and drive motor with a fan arranged on its shaft according to the preamble of claim 1.
  • the invention is based on the object of designing an arrangement of the type specified at the outset in such a way that the cooling air guidance is improved in a compact structure.
  • ring cooler 4 Arranged between fan 3 and the end face of electric motor 1 is an axially flow-through ring cooler 4 which, in the exemplary embodiment shown, overlaps electric motor 1 by approximately half its longitudinal dimension.
  • the ring cooler 4 rests with its inner circumference on cooling fins 5 which are arranged distributed over the circumference of the electric motor 1.
  • the fan is designed for only one direction of rotation. Furthermore, the volume flow of the fan 3 is designed such that it promotes the amount of cooling air required for the cooler 4 and the electric motor 1.
  • the fan 3 has a diameter which is approximately as large as the outer diameter of the ring cooler 4, the blades of the fan 3 being designed so long that they protrude inwards from the inner circumference of the ring cooler 4, for example with half their longitudinal dimension. In this way, a partial flow is generated by the fan, which is used to cool the motor and is guided along the circumference of the ring cooler 4, which serves as a guide element, over the circumference of the electric motor 1 into the spaces between the ribs 5.
  • the further partial flow generated by the fan 3 flows through, as indicated by arrows, the ring cooler 4 in the axial direction, the warmer cooling air emerging at the end of the ring cooler 4 surrounding the motor 1 like a jacket and a radial exit of the cooler cooling air flowing between the cooling fins 5 prevented.
  • the ring cooler 4 can be designed both as an oil cooler and as a combined oil and air aftercooler, as is described, for example, in DE-Gbm 81 13 479.
  • a filter mat 6 can be attached in front of the fan 3. This filter mat 6 can extend to the edge of the ring cooler 4.
  • the ring cooler 4 is arranged at a distance around the circumference of the engine, which is designed for the throughflow of the cooling air necessary for the engine. In the illustrated embodiment, this distance is determined by the height of the cooling fins 5.
  • the cooler arrangement described can also be used with a drive motor other than an electric motor, provided that this drive motor has approximately a circular circumferential shape.
  • the fan of an electric motor is usually designed for both directions of rotation.
  • the fan can only be designed for one direction of rotation, which results in a power saving through better efficiency of the fan.

Claims (7)

1. Montage formé d'un radiateur et d'un moteur d'entraînement avec un ventilateur sur l'arbre du moteur d'entraînement, en particulier pour une installation de compresseur à vis, le radiateur ayant la forme d'un radiateur annulaire (4) et étant monté à une certaine distance radiale autour de la périphérie du moteur d'entraînement (1 ) et l'air de refroidissement refoulé par le ventilateur (3) étant guidé à travers le radiateur annulaire (4) et pardessus la périphérie du moteur d'entraînement (1 ), caractérisé en ce que le radiateur annulaire (4) est prévu pour un écoulement de traversée dans le sens axial et la surface périphérique interne du radiateur annulaire (4) est prévue comme élément de guidage pour l'air de refroidissement balayant directement le moteur d'entraînement, l'air de refroidissement traversant le radiateur annulaire (4) formant une enveloppe d'air plus chaud autour de l'air de refroidissement entourant directement la périphérie du moteur d'entraînement.
2. Montage suivant la revendication 1, caractérisé en ce que le radiateur annulaire (4) chevauche au moins partiellement le moteur d'entraînement (1 ) dans le sens axial.
3. Montage suivant les revendications 1 et 2, caractérisé en ce que le radiateur annulaire (4) est posé sur des ailettes de refroidissement (5) qui sont disposées autour de la périphérie du moteur d'entraînement (1).
4. Montage suivant les revendications précédentes, caractérisé en ce que le ventilateur (3) est conçu pour un seul sens de rotation.
5. Montage suivant les revendications précédentes, caractérisé en ce qu'une natte filtrante (6) est disposée devant le ventilateur (3).
6. Montage suivant les revendications précédentes, caractérisé en ce qu'une buse d'admission pour le ventilateur (3) est prévue pour guider l'air de refroidissement aspiré.
7. Montage suivant l'une quelconque des revendications précédentes, caractérisé en ce que le radiateur annulaire (4) est monté entre le ventilateur (3) et le moteur d'entraînement (1 ) et le ventilateur (3) présente un diamètre extérieur qui est à peu près égal au diamètre extérieur du radiateur annulaire (4).
EP82107648A 1981-09-16 1982-08-20 Arrangement d'un dispositif de refroidissement et d'un moteur avec un ventilateur fixé sur son arbre, notamment pour une installation à compresseur à vis Expired EP0074514B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3136775 1981-09-16
DE19813136775 DE3136775A1 (de) 1981-09-16 1981-09-16 "kuehleranordnung fuer eine verdichteranlage"

Publications (2)

Publication Number Publication Date
EP0074514A1 EP0074514A1 (fr) 1983-03-23
EP0074514B1 true EP0074514B1 (fr) 1985-12-18

Family

ID=6141829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82107648A Expired EP0074514B1 (fr) 1981-09-16 1982-08-20 Arrangement d'un dispositif de refroidissement et d'un moteur avec un ventilateur fixé sur son arbre, notamment pour une installation à compresseur à vis

Country Status (2)

Country Link
EP (1) EP0074514B1 (fr)
DE (2) DE3136775A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3642038C2 (de) * 1986-12-09 1995-11-23 Zinser Textilmaschinen Gmbh Eigenbelüfteter Elektromotor für Spinnereimaschinen
DE3827902A1 (de) * 1988-08-17 1990-02-22 Zinser Textilmaschinen Gmbh Eigenbeluefteter elektromotor, insbesondere fuer spinnereimaschinen
BE1008367A3 (nl) * 1994-01-25 1996-04-02 Atlas Copco Airpower Nv Kompressoreenheid.
DE19527879A1 (de) * 1995-07-29 1997-01-30 Lutz Pumpen Gmbh & Co Kg Elektromotor, insbesondere Antriebsmotor für eine Faß- oder Behälterpumpe
GB2336038B (en) * 1998-04-02 2002-04-24 Brook Motors Ltd Electrical machine
JP2001227486A (ja) * 2000-02-17 2001-08-24 Daikin Ind Ltd スクリュー圧縮機
DE10156180B4 (de) * 2001-11-15 2015-10-15 Oerlikon Leybold Vacuum Gmbh Gekühlte Schraubenvakuumpumpe
DE102006058842A1 (de) * 2006-12-13 2008-06-19 Pfeiffer Vacuum Gmbh Vakuumpumpe mit Lüfter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE664937C (de) * 1935-03-09 1938-09-13 Becker Otto Drehkolbenverdichter mit luftgekuehltem Gehaeuse
CH202943A (de) * 1937-07-14 1939-02-15 Bbc Brown Boveri & Cie Kühleinrichtung an elektrischen Maschinen geschlossener Bauart.
GB748679A (en) * 1953-09-07 1956-05-09 Stamicarbon Improvements relating to electric motor and coupling units
DE2938557A1 (de) * 1979-09-24 1981-04-23 Isartaler Schraubenkompressoren Gmbh, 8192 Gertsried Verdichteranlage

Also Published As

Publication number Publication date
DE3136775A1 (de) 1983-03-31
EP0074514A1 (fr) 1983-03-23
DE3268029D1 (en) 1986-01-30

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