EP0764819A1 - Verbesserte Luftströmungsregler-Vorrichtung - Google Patents

Verbesserte Luftströmungsregler-Vorrichtung Download PDF

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Publication number
EP0764819A1
EP0764819A1 EP96401983A EP96401983A EP0764819A1 EP 0764819 A1 EP0764819 A1 EP 0764819A1 EP 96401983 A EP96401983 A EP 96401983A EP 96401983 A EP96401983 A EP 96401983A EP 0764819 A1 EP0764819 A1 EP 0764819A1
Authority
EP
European Patent Office
Prior art keywords
flap
channel
axis
air
upstream
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
EP96401983A
Other languages
English (en)
French (fr)
Other versions
EP0764819B1 (de
Inventor
Bernard Fleury
Daniel Michaud
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.)
ABB VIM SNC
Original Assignee
ABB Flaekt
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 ABB Flaekt filed Critical ABB Flaekt
Publication of EP0764819A1 publication Critical patent/EP0764819A1/de
Application granted granted Critical
Publication of EP0764819B1 publication Critical patent/EP0764819B1/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
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/75—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity for maintaining constant air flow rate or air velocity

Definitions

  • the present invention relates to an improved air flow regulator device usable in a ventilation installation, air conditioning or the like.
  • Devices for automatic regulation of the air flow have already been proposed, essentially comprising a body in which hinged flaps or the like are actuated permanently biased by a spring towards a position of maximum opening of the duct formed by the body.
  • the flaps make it possible to modulate the cross section of the body in order to maintain a substantially constant air flow within a determined pressure range.
  • Such a device has for example been described in the document FR-A-2 704 307.
  • This device was reliable and satisfactory but, nevertheless, had a certain number of imperfections in particular in terms of operating noise due to the arrangement flaps in the body which defined, in the direction of air flow, a divergent channel producing upstream of the body turbulence or generating noise.
  • the object of the present invention is to remedy in particular the above drawbacks by proposing a regulating device of improved design which does not offer any obstacle to the flow of air in the body whatever the position of the flap in this. body, so that any air disturbance or pressure fluctuation in the body is avoided and that ultimately the regulating device exhibits excellent acoustic behavior.
  • the subject of the invention is an air flow regulating device for a ventilation, air conditioning or similar installation and of the type comprising a shutter biased by a spring or the like, which shutter is mounted articulated in a body forming a conduit and makes it possible to modulate the passage section of the body in order to maintain a substantially constant air flow within a determined pressure range, characterized in that said flap, which is unique, is mounted articulated on the upstream part of the body and cooperates with the body in such a way that the air passage channel between the flap and the body is kept converging in the direction of the air flow for any position of opening of the flap.
  • the flap extends beyond the minimum section of the aforementioned channel.
  • This device is further characterized by the fact that the body comprises, facing the flap, a wall which extends in a direction inclined towards the axis of the channel from upstream to downstream of the body.
  • This wall can be mounted adjustable on the body to calibrate the air flow, if desired.
  • the axis of the aforementioned channel is inclined relative to the axis of the body.
  • the shutter is preferably provided with side skirts which minimize leaks and maintain the pressure upstream under the shutter.
  • the upstream part of the body may have a profile in the form of a nozzle neck.
  • the shutter may include an upstream part having a profile in the form of a nozzle neck and will be articulated on the body around an axis forming center of gravity so as to remove any influence resulting from the weight and the orientation of the shutter.
  • Figure 1 is a schematic view in longitudinal section of a regulating device according to the principles of the invention.
  • Figure 2 is still a schematic view in longitudinal section, but showing another embodiment of this regulating device.
  • Figure 3 is a view similar to the previous but schematically showing yet another embodiment of this device.
  • Figure 4 is still a schematic view of another embodiment of the regulating device according to this invention.
  • FIG. 5 is a perspective view of a regulating device according to this invention and the structure of which corresponds to that shown diagrammatically in FIG. 1.
  • FIG. 6 is a view in section substantially along line VI-VI of FIG. 5.
  • FIG. 7 is a perspective view of another embodiment of a regulating device according to this invention and corresponding substantially to that shown diagrammatically in FIG. 3.
  • an air flow regulating device essentially comprises a body 1 provided with an inlet constituting the upstream part 2 of the body 1 and an outlet constituting the downstream part 3 of the body, this body therefore allowing the passage of air according to the arrows marked F and the flow rate of which will be automatically regulated.
  • the body 1 forms a duct which can for example be mounted in a pipe belonging to a ventilation or air conditioning installation, this pipe being identified at 4 in FIGS. 1 to 4 and in FIG. 7.
  • the body 1 is equipped with a single flap 5 which is hinged mounted on the upstream part 2 of the body 1.
  • the hinge axis of the flap 5 on the part has been shown at 6 in the figures upstream 2 of body 1.
  • a wall 7 integral with the body 1 and defining with the flap 5 a channel 8 for the passage of air from the upstream part 2 to the downstream part 3 of the body 1, as shown by the arrows F.
  • the wall 7 can be fixed on the body 1, as shown in the figures, or can also be mounted adjustable on this body to allow the calibration of the air flow, although this is not shown in the figures.
  • the wall 7 and the articulated flap 5 define a channel 8 which is convergent, and which is always kept convergent, in the direction of the air flow according to the arrows F for any flap opening position.
  • the convergence angle marked ⁇ in FIG. 1 will preferably be relatively large and that the converging channel 8 will be relatively long.
  • the noise generated by the movement of the flap 5 allowing regulation is minimum, and this whatever the value and the variations of the angle of convergence ⁇ , c ' that is to say whatever the position of the flap 5 in the body 1. This means that for a fixed flow rate within a determined pressure range, the regulation provided by the device according to this invention exhibits excellent acoustic behavior.
  • the flap 5 extends beyond the minimum section of the channel 8.
  • the extension or extension has been identified at 5a in the figures of the flap 5, beyond the minimum section in question, that is to say beyond the end 7a of the wall 7.
  • the extension 5a of the flap 5 which extends beyond the minimum section of the channel 8 is exposed to the upstream-downstream pressure difference, that is to say the maximum pressure difference.
  • the part of the flap 5 below the minimum section is exposed to a lesser pressure difference which is increasing along the air flow. Consequently, the torque exerted on the flap 5 is maximized, limiting the harmful effects such as friction and pressure fluctuation.
  • the flap 5 is permanently urged towards a position of maximum opening of the channel 8 by a spring 9.
  • the upstream part 2 of the body 1 has an opening or air intake 10, so as to obtain an upstream air pressure in a pressure chamber 11 formed under the articulated flap 5, between this flap and the body 1 on which is fixed one end of the spring 9.
  • the extension or extension 5a of the flap 5 ends in a fallen edge 12 cooperating with a wall 13 of the body 1 projecting inwards, this fallen edge 12 and this wall 13 delimiting the pressure chamber 11 in a way.
  • the articulated flap 5 as can be seen in FIGS. 5 and 7, has side skirts 14 capable of minimizing air leaks and therefore of maintaining the pressure upstream under the hinged flap 5.
  • the wall 7 defining with the flap 5 the channel 8 converging downstream of the body 1 is planar and connected to the body 1 by a flange orthogonal to the axis XX ' of the channel 8 and obviously forming the upstream or inlet 2 part of the body 1, as well as the air intake opening 10. It will be observed that the axis XX 'of the channel 8 and of the body 1 is here the same . This embodiment corresponds to the practical embodiment illustrated in FIG. 5.
  • the upstream part of the body 1 has a profile in the form of a nozzle neck marked 16 in this figure.
  • the flap here has an upstream end 17 having a profile in the form of a nozzle neck and which defines with the body 1 the air intake opening 10 communicating with the pressure chamber 11.
  • the flap 5 is here articulated at 6 on the body 1 around its center of gravity so that any possible influence of the weight and the orientation of the flap 5 will advantageously be eliminated.
  • An air flow regulating device has therefore been produced according to the invention which presents no obstacle in the active flow zone and whose acoustic behavior is almost perfect.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
EP96401983A 1995-09-20 1996-09-18 Verbesserte Luftströmungsregler-Vorrichtung Expired - Lifetime EP0764819B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9511047A FR2738901B1 (fr) 1995-09-20 1995-09-20 Dispositif regulateur de debit d'air perfectionne
FR9511047 1995-09-20

Publications (2)

Publication Number Publication Date
EP0764819A1 true EP0764819A1 (de) 1997-03-26
EP0764819B1 EP0764819B1 (de) 2000-03-29

Family

ID=9482761

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96401983A Expired - Lifetime EP0764819B1 (de) 1995-09-20 1996-09-18 Verbesserte Luftströmungsregler-Vorrichtung

Country Status (3)

Country Link
EP (1) EP0764819B1 (de)
DE (1) DE69607428T2 (de)
FR (1) FR2738901B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1223388A3 (de) * 2001-01-12 2004-10-13 Siegenia-Aubi Kg Lüftungsvorrichtung
FR2901013A1 (fr) * 2006-05-12 2007-11-16 Conseils Etudes Et Recherches En Gestion De Lair Cerga Bouche de ventilation auto-reglable a debits multiples
FR3009068A1 (fr) * 2013-07-23 2015-01-30 Anjos Ventilation Dispositif de regulation du debit d'air dans une canalisation
WO2019073142A1 (fr) * 2017-10-09 2019-04-18 Novares France Ensemble d'admission d'air

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0068917A2 (de) * 1981-06-30 1983-01-05 SOCIETE D'ETUDES ET DE RECHERCHES DE VENTILATION ET D'AERAULIQUE - SERVA Société dite : Verfahren zur Regelung der Belüftung eines Raumes und Mittel zur Ausübung des Verfahrens
US5251654A (en) * 1988-04-07 1993-10-12 David Palmer Flow regulator adaptable for use with exhaust from a process chamber
EP0634613A1 (de) * 1993-07-15 1995-01-18 Laurent Barbarin Automatischer Durchflussmengenregler für Lüftungs- und Klimaanlagen
EP0655587A2 (de) * 1993-11-25 1995-05-31 LUNOS-LÜFTUNG GmbH & Co Ventilatoren KG Zuluftgerät

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0068917A2 (de) * 1981-06-30 1983-01-05 SOCIETE D'ETUDES ET DE RECHERCHES DE VENTILATION ET D'AERAULIQUE - SERVA Société dite : Verfahren zur Regelung der Belüftung eines Raumes und Mittel zur Ausübung des Verfahrens
US5251654A (en) * 1988-04-07 1993-10-12 David Palmer Flow regulator adaptable for use with exhaust from a process chamber
EP0634613A1 (de) * 1993-07-15 1995-01-18 Laurent Barbarin Automatischer Durchflussmengenregler für Lüftungs- und Klimaanlagen
EP0655587A2 (de) * 1993-11-25 1995-05-31 LUNOS-LÜFTUNG GmbH & Co Ventilatoren KG Zuluftgerät

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1223388A3 (de) * 2001-01-12 2004-10-13 Siegenia-Aubi Kg Lüftungsvorrichtung
FR2901013A1 (fr) * 2006-05-12 2007-11-16 Conseils Etudes Et Recherches En Gestion De Lair Cerga Bouche de ventilation auto-reglable a debits multiples
WO2007132076A1 (fr) * 2006-05-12 2007-11-22 Conseils Etudes Et Recherches En Gestion De L'air (Cerga) Bouche de ventilation auto-réglable à débits multiples
CN101443598B (zh) * 2006-05-12 2012-05-23 空气管理科研理事会 具有多个流速的自调节通风口
FR3009068A1 (fr) * 2013-07-23 2015-01-30 Anjos Ventilation Dispositif de regulation du debit d'air dans une canalisation
WO2019073142A1 (fr) * 2017-10-09 2019-04-18 Novares France Ensemble d'admission d'air
US11193459B2 (en) 2017-10-09 2021-12-07 Novares France Air intake set

Also Published As

Publication number Publication date
FR2738901B1 (fr) 1997-11-21
EP0764819B1 (de) 2000-03-29
DE69607428T2 (de) 2000-10-19
FR2738901A1 (fr) 1997-03-21
DE69607428D1 (de) 2000-05-04

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