EP0658728A2 - Dispositif pour varier le volume d'un courant d'air dans un local - Google Patents

Dispositif pour varier le volume d'un courant d'air dans un local Download PDF

Info

Publication number
EP0658728A2
EP0658728A2 EP94118179A EP94118179A EP0658728A2 EP 0658728 A2 EP0658728 A2 EP 0658728A2 EP 94118179 A EP94118179 A EP 94118179A EP 94118179 A EP94118179 A EP 94118179A EP 0658728 A2 EP0658728 A2 EP 0658728A2
Authority
EP
European Patent Office
Prior art keywords
flap
axis
support arm
weight
pivotable
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.)
Withdrawn
Application number
EP94118179A
Other languages
German (de)
English (en)
Other versions
EP0658728A3 (fr
Inventor
Franz Dipl.-Ing. Weck
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.)
Krantz TKT GmbH
H Krantz TKT GmbH
Original Assignee
Krantz TKT GmbH
H Krantz TKT 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
Application filed by Krantz TKT GmbH, H Krantz TKT GmbH filed Critical Krantz TKT GmbH
Publication of EP0658728A2 publication Critical patent/EP0658728A2/fr
Publication of EP0658728A3 publication Critical patent/EP0658728A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/146—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with springs

Definitions

  • the invention relates to a device for applying a variable air volume flow to a room, consisting of a flap pivotally mounted about an axis in a housing.
  • a support arm is attached to this in the area of the axis, which is equipped with a displaceable weight or is connected to an adjustable spring.
  • the operating limit of an air outlet is determined by the minimally necessary momentum of the air at the outlet cross-section of the air outlet
  • the application limit of an air outlet is determined by the fact that an excessively high momentum of the air at the outlet cross-section impairs comfort, by excessively high indoor air velocities, temperature differences and noise occur.
  • the invention is based on the object of designing a device of the type described in the introduction such that the air passages can be activated or deactivated individually or in groups, depending on the pressure prevailing in a duct system, completely or in particular in the case of linear passages, with different volumetric flows, in this way being complex , the outlet cross sections of the air passages changing individual devices are unnecessary.
  • the device assumes a switching function in that the flap is spontaneously automatically transferred to the closed or open position when the minimum or maximum duct pressure is exceeded or undershot, without being in an intermediate position remain. Based on its control characteristic, the flap is safely transferred to one of its two end positions depending on the duct pressure and held therein.
  • the flap In the case of a linear air outlet, this can be divided into two identical or unequal partial lengths by integrating the device according to the invention.
  • the flap In the normal area of application, the flap is in the open position at ⁇ pmin ⁇ p ⁇ pmax , so that both partial lengths of the linear air outlet are acted upon. If the pressure drops below the pressure in the normal range of use at ⁇ p ⁇ pmin , the flap pivots into the closed position, which increases the pressure in the duct and increases the jet pulse as a result of the partial loading of the linear air passage. The flap then remains in the closed position within the pressure limits ⁇ pmin ⁇ p ⁇ pmax .
  • the flap Based on the characteristic curve, the flap automatically moves from the open position to the closed position and from the closed position to the open position at corresponding differential pressures.
  • the flap swivels into the open position at a differential pressure ⁇ pmax .
  • the additional pivoting movement of the support arm by the angle ⁇ 1 accelerates the pivoting movement of the flap and prevents undesirable persistent states in intermediate flap positions.
  • the support arm articulated to the flap is pivotable about the axis of the flap or about an axis arranged at a distance from the axis of the flap.
  • the axis of the flap Due to the pivoting of the support arm by a distance from the axis the axis of the flap passes through the line of action of force unchanged at the pivot point of the support arm and thus enables the support arm to be folded down by the angle ⁇ 1, but the line of action of force does not pass through the pivot point of the flap and thereby ensures an additional moment for moving the flap into its end positions.
  • the axis about which the flap is pivotable divides it into a smaller and a larger flap section.
  • an outer edge strip of the lower flap section is angled and is inclined at a larger angle to the direction of flow than the flap in the rest.
  • the angled flap section enables the impulse forces acting on the flap due to the flow to be exploited, which results in an increased torque in the opening direction.
  • the angled edge strip of the flap is preferably perpendicular to the direction of flow, so that the flap is angled in accordance with the effect of the impulse forces desired in its open position.
  • a baffle narrowing the flow cross section is fastened in the housing, the arrangement of which allows the pivoting movement of the flap to be accelerated from the closed position.
  • the guide plate influences the flow and thus a phase shift of the characteristic curve, so that an angular acceleration of the flap is thereby achieved.
  • an embodiment of the invention provides that the flap is directly provided with an additional weight that acts exclusively in the closing direction and is also displaceable.
  • the arrangement of the additional weight makes it possible to change the level of the differential pressure from which the flap is pivoted from the closed to the open position without having to change the basic setting in the support arm area.
  • the device consists of a broken-off housing 1 in the form of a channel with a rectangular cross section, to which a volume flow can be applied in the direction of an arrow 2.
  • a flap 4 is pivotally mounted on an axis 3 passing through it.
  • Axis 3 corresponds to the desired characteristic arranged off-center and divides the flap 4 into an upper smaller and a lower larger flap section.
  • the flap 4 shown in the closed position and oriented at an angle of 45 ° to the horizontal can be pivoted through an angle ⁇ of approximately 45 ° into the horizontal open position indicated by dash-dotted lines.
  • a lower edge strip 5 of the flap 4 is angled 45 ° downward so that it is oriented at right angles to the horizontal in the closed position of the flap 4.
  • a baffle 6, which slightly narrows the flow cross section of the housing 1, is arranged in relation to the closed position of the flap 4 in the flow direction behind the edge strip 5 such that the flow cross section is released only after the flap 4 has been partially pivoted to initiate the opening process.
  • a support arm 7 is articulated on the outflow side of the flap 4 and, like the flap 4, can be pivoted about the axis 3 in synchronism with it via an angle ⁇ .
  • the equipped with a displaceable weight 8 support arm 7 is hinged to the flap 4, that the support arm 7 is independent of the flap 4 additionally pivotable by an acute angle ⁇ 1.
  • the pivoting range of the support arm 7 thus extends over a total angle ⁇ + ⁇ 1.
  • An additional weight 9 is also slidably associated with the lower larger flap section, which, in deviation from the weight 8, exerts only a closing force on the flap 4, while the weight 8 has a closing or opening effect on the flap 4 depending on the position of the support arm 7.
  • the weights 8 and 9, which are displaceable in relation to the axis 3, are arranged out of phase by the angle ⁇ 0 in accordance with the desired characteristic curve.
  • the flap 4 When the flap 4 is open, the flow cross section of the housing 1 is released, so that those arranged in the flow direction behind the device are not air outlets shown are sufficiently supplied with air. Due to the shape of the flap 4 and the interaction of the phase-shifted weights 8 and 9, the flap 4 is spontaneously completely opened when a ⁇ pmax is exceeded and remains in the open position until a ⁇ pmin is undershot . When ⁇ pmin is undershot , flap 4 is also spontaneously transferred to the closed position and held therein until ⁇ pmax is exceeded.
  • the support arm 7 ' is pivotable about an axis 10 which is associated with the lower flap section at a distance from the axis 3.
  • the functions of the weights 8 and 9 from the exemplary embodiment according to FIG. 1 are taken over by the weight 8 alone.
  • one end of a pretensioned tension spring 12 is connected to a fixed point 11 of the housing 1, the other end of which acts on the support arm 7 ′′ at a connection point 13.
  • the fixed point 11 and the connection point 13 define with the axis 10, about which the support arm 7 '' can be pivoted, in both end positions of the flap 4 an acute-angled triangle, so that the tension spring 12 under increased prestress via a dead center position of the support arm 7 '' pivoted in the opening or closing direction of the flap 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air-Flow Control Members (AREA)
EP94118179A 1993-12-16 1994-11-18 Dispositif pour varier le volume d'un courant d'air dans un local. Withdrawn EP0658728A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4342880A DE4342880A1 (de) 1993-12-16 1993-12-16 Vorrichtung zur Beaufschlagung eines Raumes mit einem variablen Luftvolumenstrom
DE4342880 1993-12-16

Publications (2)

Publication Number Publication Date
EP0658728A2 true EP0658728A2 (fr) 1995-06-21
EP0658728A3 EP0658728A3 (fr) 1996-05-29

Family

ID=6505148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94118179A Withdrawn EP0658728A3 (fr) 1993-12-16 1994-11-18 Dispositif pour varier le volume d'un courant d'air dans un local.

Country Status (2)

Country Link
EP (1) EP0658728A3 (fr)
DE (1) DE4342880A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031442A1 (fr) * 1997-12-16 1999-06-24 Richard Gatley Stabilisateur de la pression d'air
GB2408793A (en) * 2003-12-04 2005-06-08 Richard Gatley Gas vent with linked control members contra-rotating at a predetermined pressure differential
EP2051020A1 (fr) * 2007-10-16 2009-04-22 Demconstruct sarl Dispositif de ventilation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB272215A (fr) * 1926-06-01 1927-09-01 The Louden Machinery Company
US3066694A (en) * 1959-09-03 1962-12-04 Penn Controls Pressure regulating valve
FR2309918A1 (fr) * 1975-04-29 1976-11-26 Stifab Ab Dispositif de maintien de debit constant dans un ecoulement
US4090434A (en) * 1977-03-07 1978-05-23 Connor Engineering & Manufacturing, Inc. Variable induction apparatus with a primary fluid flow controlled induction damper
GB2073404A (en) * 1980-03-05 1981-10-14 Farex As Dampers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB272215A (fr) * 1926-06-01 1927-09-01 The Louden Machinery Company
US3066694A (en) * 1959-09-03 1962-12-04 Penn Controls Pressure regulating valve
FR2309918A1 (fr) * 1975-04-29 1976-11-26 Stifab Ab Dispositif de maintien de debit constant dans un ecoulement
US4090434A (en) * 1977-03-07 1978-05-23 Connor Engineering & Manufacturing, Inc. Variable induction apparatus with a primary fluid flow controlled induction damper
GB2073404A (en) * 1980-03-05 1981-10-14 Farex As Dampers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031442A1 (fr) * 1997-12-16 1999-06-24 Richard Gatley Stabilisateur de la pression d'air
GB2408793A (en) * 2003-12-04 2005-06-08 Richard Gatley Gas vent with linked control members contra-rotating at a predetermined pressure differential
EP2051020A1 (fr) * 2007-10-16 2009-04-22 Demconstruct sarl Dispositif de ventilation
EP2339259A1 (fr) * 2007-10-16 2011-06-29 Tunal Bvba Dispositif de ventilation

Also Published As

Publication number Publication date
DE4342880A1 (de) 1995-06-22
EP0658728A3 (fr) 1996-05-29

Similar Documents

Publication Publication Date Title
DE2635338B2 (de) Luftmengenregler zum Konstanthalten des Luftdurchsatzes
DE69406622T2 (de) Zweidimensionaler Über- und Hyperschall-Lufteinlauf mit drei bewegbaren Rampen für die Verbrennungsluft eines Flugzeugmotors
DE3227882C2 (fr)
DE1604168B2 (de) Automatisches Regelventil für Be luftungs und Klimaanlagen
DE2157533B2 (de) Vergaser für Brennkraftmaschinen
DE102004062689A1 (de) Vorrichtung zur Regulierung eines Luftstroms
DE102019206739A1 (de) Luftausströmer mit einer Luftregelklappe und einer Torsionsfeder
DE2519408A1 (de) Luftmengenregler
EP0692397B1 (fr) Clapet d'air pour dispositif de chauffage ou de climatisation
DD140276A5 (de) Geregelte luftklappenanordnung bei klimaanlagen
DE3333878A1 (de) Belueftungsduese
EP0658728A2 (fr) Dispositif pour varier le volume d'un courant d'air dans un local
DE1927413C3 (de) Regelvorrichtung für die Luftzufuhr in Klimaanlagen
DE3039613C2 (de) System zum Regeln der Leerlaufdrehzahl von Ottomotoren
EP1130334B1 (fr) Régulateur de débit en particulier pour les installations de conditionnement d'air
DE202004003811U1 (de) Volumenstromregler
DE3128726A1 (de) Druckminderer fuer luftfuehrungskanaele in klimaanlagen
DE10222673C1 (de) Volumenstromregler
DE4012215C1 (fr)
DE2219380A1 (de) Volumenstromregler
DE69607428T2 (de) Verbesserte Luftströmungsregler-Vorrichtung
DE69305437T2 (de) Auspuffbremse und druckregulierendes Ventil
CH622631A5 (fr)
DE2600735A1 (de) Leitung mit einer ihrer absperrung dienenden klappe
DE3108231A1 (de) Lenkflugkoerper

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE GB LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE GB LI NL

17P Request for examination filed

Effective date: 19960530

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19980603