EP0840070B1 - Entlüftungseinrichtung - Google Patents

Entlüftungseinrichtung Download PDF

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Publication number
EP0840070B1
EP0840070B1 EP97402631A EP97402631A EP0840070B1 EP 0840070 B1 EP0840070 B1 EP 0840070B1 EP 97402631 A EP97402631 A EP 97402631A EP 97402631 A EP97402631 A EP 97402631A EP 0840070 B1 EP0840070 B1 EP 0840070B1
Authority
EP
European Patent Office
Prior art keywords
fact
extractor according
diameter
extractor
central part
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 - Lifetime
Application number
EP97402631A
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English (en)
French (fr)
Other versions
EP0840070A1 (de
Inventor
André Amphoux
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
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Publication of EP0840070A1 publication Critical patent/EP0840070A1/de
Application granted granted Critical
Publication of EP0840070B1 publication Critical patent/EP0840070B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/02—Roof ventilation

Definitions

  • the invention relates to an air extractor for ventilation.
  • the invention aims to propose an extractor of the type question presenting a simpler embodiment and less expensive.
  • the invention relates to an extractor according to the claim 1.
  • the extractor 1, according to one embodiment of the invention, is intended for be fixed on a duct 2.
  • the extractor 1 comprises a flange corresponding to conduit 2 and facilitating the attachment to this conduit.
  • Extractor 1 has a general axis of symmetry 3 which, when the extractor 1 is mounted, is placed vertically or substantially vertically.
  • extractor 1 can occupy any position.
  • axis 3 is an axis of revolution, extractor 1 being of general shape circular around axis 3.
  • the extractor 1 has a lower part 4 and an upper part 5.
  • the two parts 4, 5 are placed opposite but separated from each other by being joined to one another the other by means of spacers such as 6. These spacers 6 extend parallel to axis 3.
  • Parts 4 and 5 define a free space 7, open to the outside, forming a venturi.
  • the free space 7 is in communication with a opening 8 in the lower part 4 at its upper end.
  • This opening 8 is itself in communication with conduit 2.
  • the lower part 4 has a shaped part 9 general frustoconical whose small base, upper, where is finds the opening 8, is turned towards the upper part 5 while the large base 11, lower, is turned opposite the upper part 5.
  • the diameter of the large base is of the order of 1.6 to 2.5 times the diameter d of the small base 10, or opening 8.
  • the angle ⁇ between the large base 11 and the wall inclined 9a of the part 9 is for example between 20 ° and 45 °.
  • the lower part 4 comprises, in addition to a first part such as 9, a second piece 12 which, like the first piece 9, is shaped general frustoconical.
  • the second part 12 is associated with the first part 9 so that their large bases 11, 13 are common or substantially common and that their small bases 10, 14 are opposite and separated from each other.
  • the small base 10 can be overcome, towards the upper part 5, of a lip 10a, shown in the Figures 2 and 3, of substantially circular section, axis 3 and of diameter d identical to that of the small base 10.
  • the height h 1 of the lip 10a -counted parallel to the axis 3- is of the order of 0.01 to 0.02 times the diameter d.
  • the height h 2 -counted along the axis 3-between the free peripheral edge of the lip 10a and the upper part 5 is of the order of 0.45 to 0.8 times the diameter d.
  • the upper part 5 is in the form of a flattened cup.
  • This cup 5 is generally circular in shape.
  • the cup 5 comprises a central part 15, transverse, axially offset from the part remaining annular outer 16.
  • This axial offset is such that the central part 15 is further away from the median plane of the lower part 4 than is the annular outer part 16.
  • the plane P can be the plane placed between the two bases 10, 11.
  • the plane P can be defined by the large bases 11, 13.
  • the outside diameter of the cup 5 is equal to or close to the outside diameter of the lower part 4 defined by the major base (s) 11, 13.
  • the diameter of the central part 15 is equal to or close to the diameter of the opening 8. It is, in the modes shown, between 0.8 and 1.25 times the diameter d of the small base 10.
  • the diameter of the central part 15 is, in the achievement considered, between 0.4 and 0.6 times approximately the outside diameter of the cup 5.
  • the diameter of the central part 15 is of the order of half the outside diameter of the cup 5.
  • the axial offset of the central part 15 by relative to the annular outer part 16 - along the axis 3- is about a tenth of the diameter of the part central 15, and preferably of the order of 0.15 to 0.5 times the diameter d of the small base 10.
  • the transverse central part 15 is flat or substantially flat, as is the outer part ring finger 16.
  • the transverse central part 15 is connected to the annular outer part 16 by a wall of connection 17 of generally frustoconical shape, inclined by in relation to axis 3.
  • This connecting wall 17 is on the side of the central part 15 and its large diameter of the side of the annular outer part 16.
  • the angle of inclination of the connection wall 17 on axis 3 is between 15 ° and 45 °.
  • this angle is of the order of 20 °.
  • the upper part forming a cup 5 comprises in the embodiment shown, an outer edge 18 falling towards the midplane P.
  • the axial length of the falling outer edge 18 is of the order of one third or two thirds of the axial offset of the central part 15 relative to the external part ring finger 16.
  • the angle of inclination of the falling outer edge 18 on axis 3 can be of the same order of magnitude as that of the connection wall 17.
  • Extractor 1 is then of type static.
  • the space 19 allows the housing of the blade or blades 20 of a turbine 21 fixed to the cup 5 while being placed at opposite of the lower part 4.
  • the extractor 1 can then be of the static type or, when the turbine 21 is operating, of dynamic type.
  • the extractor 1 includes such a turbine, it is preferable that it be provided with a cover protection 22.
  • This protective cover 22 is fixed to the cup 5, on the side opposite the lower part 4.
  • Such a cover 22 has a generally conical shape or frustoconical with, in the latter case, a wall upper transverse 23.
  • Such a cover 22 can be fixed to the part outer annular 16 in the vicinity of the falling edge 18.
  • An opening 24 may be provided between the cover 22 and the annular outer part 16 so as to allow the air circulation inside the cover 22.
  • the cover 22 is of generally frustoconical shape, for improve air circulation, and therefore the cooling of the turbine 21, an opening is provided 23a formed in the upper wall 23 of the cover 22.
  • the wall 23 is surmounted by a cap 25, of generally conical shape.
  • the base 25a of the cap 25 is fixed to the wall 23 with a space 26 between them for the evacuation of air from opening 23a.
  • the extractor When the extractor is of dynamic type, it can optionally have a lower part 4 with a part single 9 as shown in Figure 3 or with two pieces such as 9 and 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Apparatus For Making Beverages (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Food-Manufacturing Devices (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Claims (21)

  1. Extraktor mit einem unteren Teil (4) und einem oberen Teil (5), die sich mit Abstand gegenüberliegen und anhand von Stegen (6) miteinander verbunden sind, die zwischen sich einen offenen, ein Venturi bildenden Freiraum (7) definieren, der mit einer im unteren Teil (4) vorgesehenen Öffnung (8) in Verbindung steht, dadurch gekennzeichnet, dass die dem unteren Teil (4) gegenüberliegende Fläche des oberen Teils (5) eine im Allgemeinen kreisförmige Schale bildet mit einem Außendurchmesser, der dem Außendurchmesser des unteren Teils (4) entspricht oder diesem benachbart ist, mit einem ringförmigen Außenteil und einem in Bezug auf den ringförmigen Außenteil axial nach oben versetzten mittleren Teil (15), dessen Durchmesser dem Durchmesser der im unteren Teil vorgesehenen Öffnung (8) entspricht oder diesem benachbart ist, wobei das mittlere Teil und das ringförmige Außenteil eben oder etwa eben sind.
  2. Extraktor nach Anspruch 1, dadurch gekennzeichnet, dass der Durchmesser des mittleren Teils (15) 0,8 bis 1,25 Mal dem Durchmesser (d) der Öffnung (8) entspricht.
  3. Extraktor nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass der Durchmesser des mittleren Teils (15) etwa 0,4 bis 0,6 Mal dem Außendurchmesser der Schale (5) entspricht.
  4. Extraktor nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Durchmesser des mittleren Teils (15) etwa die Hälfte des Außendurchmessers der Schale (5) beträgt.
  5. Extraktor nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die axiale Versetzung des mittleren Teils (15) in Bezug auf das ringförmige Außenteil (16) etwa ein Zehntel des Durchmessers des mittleren Teils (15) beträgt.
  6. Extraktor nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die axiale Versetzung des mittleren Teils (15) in Bezug auf das ringförmige Außenteil (16) 0,15 bis 0,5 Mal dem Durchmesser (d) der Öffnung (8) entspricht.
  7. Extraktor nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das mittlere Teil (15) über eine kegelstumpfartig auf die Achse (3) des Extraktors geneigte Anschlusswand (17) mit dem ringförmigen Teil (16) verbunden ist.
  8. Extraktor nach Anspruch 7, dadurch gekennzeichnet, dass der Neigungswinkel der Anschlusswand (17) auf die Achse (3) zwischen 15 und 45°, insbesondere etwa 20° beträgt.
  9. Extraktor nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Schale (5) einen nach unten gerichteten Außenrand (18) aufweist.
  10. Extraktor nach Anspruch 9, dadurch gekennzeichnet, dass die axiale Länge des fallenden Außenrands (18) etwa zwei Dritteln der axialen Versetzung des mittleren Teils (15) in Bezug auf das ringförmige Teil (16) entspricht.
  11. Extraktor nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das untere Teil (4) ein kegelstumpfartiges Stück (9) aufweist, dessen Basis (10) zum oberen, schalenförmigen Teil (5) hin gerichtet ist, und dessen große Basis (11) in die entgegen gesetzte Richtung gerichtet ist.
  12. Extraktor nach Anspruch 11, dadurch gekennzeichnet, dass der Durchmesser der großen Basis (11) zwischen 1,6 und 2,5 Mal dem Durchmesser (d) der kleinen Basis (10) beträgt.
  13. Extraktor nach Anspruch 11 oder 12, dadurch gekennzeichnet, dass eine Lippe (10a) mit etwa kreisförmigem Querschnitt und von gleicher Achse (3) und Durchmesser (d) wie die Öffnung (8) am unteren Teil (4), lotrecht zu seiner kleinen Basis (10) und zum oberen Teil (5) hin gerichtet befestigt ist.
  14. Extraktor nach einem der Ansprüche 11 bis 13, dadurch gekennzeichnet, dass das untere Teil (4) ferner ein zweites, im Allgemeinen kegelstumpfartiges, mit dem ersten Stück (9) verbundenes Stück (12) umfasst, wobei sie gemeinsame oder etwa gemeinsame große Basen (11, 13) haben und die kleinen Basen (10, 14) einander gegenüberliegen.
  15. Extraktor nach einem der Ansprüche 7 bis 17, dadurch gekennzeichnet, dass der durch das mittlere, axial versetzte Teil (15) und der Anschlusswand (17) gebildete Raum (19) leer ist, wobei der Extraktor (1) eines statischen Typs ist.
  16. Extraktor nach einem der Ansprüche 7 bis 14, dadurch gekennzeichnet, das der durch das mittlere, axial versetzte Teil (15) und der Anschlusswand (17) gebildete Hohlraum (19) ermöglicht, den oder die Flügel (20) einer Turbine (21) aufzunehmen, wobei der Extraktor (1) eines statischen oder dynamischen Typs sein kann.
  17. Extraktor nach Anspruch 16, dadurch gekennzeichnet, dass die Turbine (21) am oberen, eine Schale (5) bildenden Teil gegenüber dem unteren Teil (4) befestigt ist.
  18. Extraktor nach einem der Ansprüche 16 und 17, dadurch gekennzeichnet, dass er ferner eine an der Schale (5) befestigte Schutzhaube (22) der Turbine (21) umfasst.
  19. Extraktor nach Anspruch 18, dadurch gekennzeichnet, dass die Haube (22) im Allgemeinen kegelförmig ist.
  20. Extraktor nach Anspruch 18, dadurch gekennzeichnet, dass die Haube (22) im Allgemeinen kegelstumpfförmig ist und eine obere Querwand (23) aufweist.
  21. Extraktor nach Anspruch 20, dadurch gekennzeichnet, dass die obere Wand (23) eine Öffnung (23a) umfasst, auf der mit einem Zwischenraum (26) ein kegelförmiger Aufsatz (25) sitzt.
EP97402631A 1996-11-05 1997-11-04 Entlüftungseinrichtung Expired - Lifetime EP0840070B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9613459A FR2755505B1 (fr) 1996-11-05 1996-11-05 Extracteur d'air destine a la ventilation
FR9613459 1996-11-05

Publications (2)

Publication Number Publication Date
EP0840070A1 EP0840070A1 (de) 1998-05-06
EP0840070B1 true EP0840070B1 (de) 2003-03-05

Family

ID=9497330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97402631A Expired - Lifetime EP0840070B1 (de) 1996-11-05 1997-11-04 Entlüftungseinrichtung

Country Status (7)

Country Link
EP (1) EP0840070B1 (de)
AT (1) ATE233882T1 (de)
DE (1) DE69719448T2 (de)
ES (1) ES2194169T3 (de)
FR (1) FR2755505B1 (de)
HU (1) HU221570B (de)
PL (1) PL184815B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2782781B1 (fr) 1998-09-02 2000-09-29 Andre Amphoux Dispositif de securite pour systemes d'evacuation de fluides gazeux
FR2842586B1 (fr) * 2002-07-17 2005-05-20 Invent Or Dispositif d'extraction de gaz
FR2869976B1 (fr) * 2004-05-06 2006-08-18 Andre Amphoux Extracteur d'air du type statique comprenant une partie superieure dont la face externe est inclinee
CN104121614B (zh) * 2014-07-25 2016-12-28 宁波方太厨具有限公司 一种吸油烟机用整流加速盘结构

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2262777A1 (en) * 1974-02-28 1975-09-26 Junqua Yves Static chimney ventilator - housing with concave sides and gutter above, generating depression by wind deflection
FR2374591A1 (fr) 1976-12-14 1978-07-13 Amphoux Andre Aspirateur statico-dynamique de fluides gazeux
FR2435672A1 (fr) * 1978-09-06 1980-04-04 Grp Interet Eco Maison Appareil pour la ventilation naturelle de locaux
FR2438795B2 (fr) 1978-10-13 1986-04-04 Amphoux Andre Aspirateur statico-dynamique de fluides gazeux
FR2474651B1 (fr) 1980-01-25 1986-04-04 Amphoux Andre Installation de rejet dans l'atmosphere ambiante d'un fluide gazeux sous pression a vitesse elevee
FR2514469B1 (fr) 1981-10-13 1986-04-04 Amphoux Andre Dispositif aspirateur de fluide gazeux statique, dynamique et mecanique
FR2518710B1 (fr) 1981-12-18 1988-09-23 Amphoux Andre Aspirateur statique de fluide gazeux perfectionne
FR2647881B1 (fr) * 1989-05-30 1994-07-29 Amphoux Andre Dispositif de ventilation mixte pour une habitation
FR2651563B1 (fr) 1989-09-06 1991-12-27 Amphoux Andre Dispositif d'aspiration de gaz.
FR2658271B1 (fr) 1990-02-09 1995-01-06 Andre Amphoux Dispositif pour l'aspiration et le rejet de gaz ou fumees et installation comportant une pluralite de tels dispositifs.
FR2709534B1 (fr) 1993-09-03 1996-02-09 Andre Amphoux Dispositif statique/dynamique pour l'évacuation de fluide gazeux.

Also Published As

Publication number Publication date
FR2755505B1 (fr) 1999-01-15
HUP9701790A2 (hu) 1998-07-28
EP0840070A1 (de) 1998-05-06
FR2755505A1 (fr) 1998-05-07
HUP9701790A3 (en) 1999-09-28
PL323000A1 (en) 1998-05-11
ES2194169T3 (es) 2003-11-16
DE69719448T2 (de) 2004-01-15
PL184815B1 (pl) 2002-12-31
HU221570B (hu) 2002-11-28
ATE233882T1 (de) 2003-03-15
DE69719448D1 (de) 2003-04-10
HU9701790D0 (en) 1997-12-29

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