EP0924474B1 - Luftaustritt für Belüftungsanlagen - Google Patents
Luftaustritt für Belüftungsanlagen Download PDFInfo
- Publication number
- EP0924474B1 EP0924474B1 EP98123339A EP98123339A EP0924474B1 EP 0924474 B1 EP0924474 B1 EP 0924474B1 EP 98123339 A EP98123339 A EP 98123339A EP 98123339 A EP98123339 A EP 98123339A EP 0924474 B1 EP0924474 B1 EP 0924474B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- flow
- outlet
- air outlet
- influencing
- 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
Links
- 238000009423 ventilation Methods 0.000 title claims description 7
- 230000008859 change Effects 0.000 claims description 5
- 239000003570 air Substances 0.000 claims 33
- 239000012080 ambient air Substances 0.000 claims 1
- 230000035515 penetration Effects 0.000 description 7
- 239000003380 propellant Substances 0.000 description 7
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
-
- 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
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F2013/0612—Induction nozzles without swirl means
Definitions
- the invention relates to an air outlet for ventilation systems for the ventilation of rooms, in particular hall-like rooms, which is arranged at the outlet of an air supply channel and at least one propulsion jet for a propulsion jet and at least an exit field adjacent to the motive nozzle for Towing air, wherein the motive nozzle and the exit field are supplied directly with supply air from the air supply channel and an entrance area of the motive nozzle extends over a cross-sectional area of the air supply passage.
- the invention is based on the object, an air outlet to improve the type mentioned.
- the means of influencing provide the air flow firmly mounted in the air duct
- the means for influencing the air flow adjustable are formed.
- the air outlet can thus be changing Room conditions, such as conversions or subsequent Built-in, be adapted without the ventilation system to rebuild in this area.
- An embodiment of the invention is achieved in that the means for influencing the air flow at least one Have flow divider, by the amount of air the motive nozzle and the exit field is split.
- the Flow divider makes it possible that needed for the propulsion jet Air to a larger or smaller area of the air supply channel and according to the exit field to supply a smaller or larger amount of air, in total constant air volumes.
- the means for influencing the flow of air through at least one at least the outlet field upstream throttle device educated.
- the throttle device with its penetration resistance can affect the respective flow rates the amount of air supplied to the motive nozzle and the exit field Influence, and so the distribution of air volumes through the motive nozzle and through the exit field.
- the passage resistance is set so that the Pressure difference between the faster flowing propellant jet and the slowly flowing towing air on the room side of the air outlet, a suction of the trailing air around the Driving jet causes.
- the throttle device can be so be specified that turbulence in the propellant jet avoided become. This makes it possible in particular, a low-noise Air discharge to achieve.
- a preferred embodiment of the invention is characterized achieved in that the throttle device at least two transversely in Direction of air flow and preferably at a distance one behind the other having arranged perforated plates.
- the perforated plates represent a flow resistance, the free Passage cross section determined by the area of all holes becomes.
- the perforated plates are spaced from each other arranged so that the air flow through the perforated plates is essentially turbulent. The turbulence effect a loss of speed energy.
- the perforated plates are preferably provided in the area in front of the exit field, such that a substantially lossless air flow can be done through the motive nozzle.
- this air outlet are two identical Perforated plates which abut one another or at a distance to each other, transverse to the direction of the air flow and one behind the other are arranged. By moving the perforated plates each other, the penetration resistance can be changed. Furthermore, it is possible that one of the perforated plates Part of the exit field is what the construction of the air outlet simplified.
- the means for influencing the air flow more relative mutually pivotable, lamellar flow guide elements For guiding and / or inhibiting the air flow.
- the lamellar flow guide substantially perpendicular to the flow direction of Align air in the air supply duct, making it easier Flow resistance reduce the flow velocity.
- Be the flow guide with its surface in adjusted to an angle to the flow direction is achieved that the supply air in the air supply channel according to the angle setting the Strömungsleitieri as needed in the area the motive nozzle or the exit field is passed. Consequently
- a Flow division achieved with the desired difference between the air flow through the motive nozzle and through the Output field are adjustable. It is particularly useful if several lamellar flow guide individually and / or in groups at an angle to the direction of flow are adjustable.
- the air outlet is designed so that the means for influencing the flow of air as a cassette in the air supply channel can be inserted and pulled out.
- the means for influencing the flow of air as a cassette in the air supply channel can be inserted and pulled out.
- Another favorable embodiment of the invention has a inclined towards the axis of the driving air channel Exit field on, at the same time a shield against the room air forms. As a result, a disturbing access of room air in the jet directly at the air outlet largely prevented.
- the drive nozzle in the air supply channel against the flow direction the air-projecting pre-channel is assigned.
- the Deutschedüse a substantially undisturbed air flow fed through the pre-channel to interference by deflections to the exit field and by guide elements in the Field of the exit field is shielded. This ensures that that a "clean" undisturbed propulsion jet can train.
- the Vorkanal at its entrance with relatively pivotable lamellar Strömungsleitelemnenten the Change of the air passage is provided. That's it possible, independent or dependent on each other the influx from air to the motive nozzle and to the exit field.
- Air outlet is as a final component 1 is formed for escape to an air supply channel 2.
- the air outlet 1 is formed from substantially a plurality of blowing nozzles 3 for generating driving jets, the can be pivotally mounted, so that the beam axis 7 of the each generated propellant jet adjustable in its angular position is.
- the propulsion nozzles 3 is an exit field 4 for Associated with trailing air, for example through a perforated plate is formed and that in the illustrated embodiment is located above the level of the driving nozzles 3.
- the perforated plate is schematically through the Crosshatching shown.
- the exit field 4 is here designed so that its surface not only above the Austreibdüsen 3 but also clearly on both sides extending into the room. Now the air supply channel 2 applied to the supply air, so part of this occurs Air through the blowing nozzles 3 in the form of several propulsion jets into the room. The other part of the air is over the Exit field initiated into the room.
- the passage cross sections the driving nozzles on the one hand and the total passage cross-section the exit field 4 on the other hand, as well as the corresponding Naturalflußwiderimportant the driving nozzles 3 on the one hand and the exit field 4 on the other hand are so on each other tuned that the flow velocity of the propulsion jets in Area of the nozzle orifice is about two to five times higher as the emerging from the exit field 4 drag air.
- Such an air outlet 1 is in the room to be ventilated at a corresponding distance above the floor at a to be ventilated workshop, for example, at an altitude of over 3 m, introduced into the room.
- a room air vortex is induced, are in the Air outlet according to FIG. 1, the propellant nozzles 3 with respect to the room by a shield 5, for example in the form of a cover plate, covered, so that in the first place from the Exit field 4 emerging drag air from the propulsion jets taken in the room.
- the propulsion jets can expand upwards and take almost exclusively Schleppluft from the exit field 4 with, where through the trailing air because of the relatively low Flow rate only a small amount of room air in the introduced supply air is mixed in this way.
- the speeds can be set so that the Arrangement acts in the manner of a source ventilation.
- a Flow velocity of the air in the propulsion jets of for example 5 to 20 m / sec and a flow velocity the trailing air of 1 to 4 m / sec respectively measured in the exit plane, then results in isothermal Operation an average speed of the supply air at a distance of about 5 m from the relevant exit surface the air outlet of about 30 to 120 cm / sec.
- the Schlepf Kunststoff is here by the propulsion jets in the room carried in.
- Influencing the "beam characteristic" of the space escaping air by pivoting the drive nozzles. 3 is often not enough, because the distribution of air volumes fixed by the design of the exit field 4 is.
- the ratio of the flow velocities of the exit field 4 and the driving nozzles 3 and thus the respective passing through these two areas of the air outlet Air quantities can be controlled by a means 6 for influencing the Air flow in the air supply channel 2, here in the form of a flow divider 6.1 be set, which is practically over the entire width of the air supply channel 2 extends.
- a means 6 for influencing the Air flow in the air supply channel 2 here in the form of a flow divider 6.1 be set, which is practically over the entire width of the air supply channel 2 extends.
- Flow divider 6.1 is pivotally mounted and can in the direction the arrow is pivoted and in any desired angular position be determined.
- the air flow is divided in the air supply channel 2 and on the exit field 4 and the driving nozzles 3 distributed. hereby in each case changes the partial air flow through the propellant nozzles 3, as well as the flow rate in each case in relation to the partial air volume and the flow rate at the exit field 4.
- the "zero position" of the flow divider 6.1 is given when it is aligned parallel to the longitudinal axis of the air supply channel 2 is.
- the air flow is absorbed by a substantial part passed the motive nozzle and thereby accelerated.
- Turbulence behind the flow divider 6.1 in front of the exit field 4 the air flow is slowed down in this area. This causes the propulsion jet from the exit field. 4 withdrawn drag air can continue to carry in the room.
- Fig. 3 is an arrangement of an air outlet as shown in FIG. 1 shown.
- the air outlet is arranged vice versa, especially in the supply of hot air in a high Hall is appropriate.
- the shield 5 arranged above the air outlet and the beam axis. 7 is swiveled down.
- the emerging from the air outlet Warm air can thus be pushed down into the room become.
- the air outlet 1 has as a means 6 for influencing the air flow in the air supply channel 2, a throttle device 6.2.
- the throttle device 6.2 has in Area of the exit field 4 a plurality of lamellar flow guide elements 8 on, each individually or in groups are pivotally mounted. In each case, the area a flow guide 8 inclined to the air flow become.
- This arrangement can also be used with a flow divider 6.1 be combined in the area of the exit field 4. But it can also be a second, independently operable arrangement
- Such flow guide 8 in front of the driving nozzles. 3 be arranged in the air supply channel 2.
- the lamellar flow guide elements 8 each change after angular position the penetration resistance of the exit field 4, so that the drag air quantity compared to the blowing air is changed. It is thus reinforced air through the motive nozzles 3 headed.
- Fig. 4 is a modification of the embodiment of FIG. 1 shown.
- a shielding of the driving nozzles 3 upwards in Form of a channel-like extension 9 is provided, as Perforated 4.1 formed end face the exit field. 4 forms, so that the exit plane of the exit field 4 the Exit level of the driving nozzles 3 projects beyond in the beam direction.
- a perforated plate 6.3 Before the perforated plate 4.1 is in the air supply channel 2 at a distance a perforated plate 6.3 arranged.
- the perforated plate 6.3 is opposite the perforated plate 4.1 slidably, so that on the one hand at lowest penetration resistance the holes in the flow direction are aligned and with increased penetration resistance the holes depending on the displacement in the flow direction are arranged more or less staggered.
- the Arrangement of the perforated plate 6.3 is in front of the exit field 4 a the displacement generates corresponding turbulence, the one correspondingly changed resistance to passage result Has. Also with this arrangement is the change in the air flow distribution and influencing the "beam characteristic" the air escaping into the room is possible.
- Fig. 5 is a preferred modification of the embodiment shown in FIG. 4.
- the channel-like extension 9 which also forms the shield of the motive nozzle 3, designed so that the exit plane of the exit field 4 aligned at an angle to the beam axis 7 is, wherein the outlet openings of the exit field of the Beam axis 7 are facing.
- the exit field 4 in the form of a perforated plate so that the outlet openings against the jet axis are directed.
- each is in the transition region from the air supply channel 2 to the two-sided channel-like extensions 9 each have a means 6 for influencing the Flow in the form of lamellar flow guide elements 8 arranged in the structure and mode of action of Fig. 3 have already been described.
- the flow guide elements 8 arranged in a reference plane 10 side by side, in turn at an angle to the exit plane is inclined.
- the flow guide 8 can in the same direction from a "closed position" on the full open position, d. H. with perpendicular to the reference plane 10 aligned flow guide 8 to others Be pivoted "closed position". This will not only affects the amount of air, but depending on the orientation of the in the channel-like extension entering airflow also the pressure drop and thus the penetration resistance.
- Fig. 6 shows an embodiment with counter-pivoting Flow guiding elements 8.
- FIG. 7 shows the basic arrangement according to FIG. 5, however, with two flap-like flow dividers 6.1, over the according to the operation described with reference to FIG. 1 on the formation of the "beam characteristic" influence can be taken.
- FIG. 8 the air outlet of FIG. 5 to 7 in front view shown. There are four in a row next to each othermaschinedüsen 3 provided.
- the driving nozzles 3 are double-sided each of an exit field 4 of the channel-like extensions 9 surmounted.
- Fig. 9 shows the arrangement of FIG. 8 in a plan view.
- All of the air outlet shapes described above can each be arranged at the end of an air supply channel 2 or but also a branch off to the side of a main channel Complete the side channel.
- the embodiments of the means 6 for influencing the air flow can be described as a unit in a cassette summarize, which can be exchanged as an insert element and connected to the air outlet.
- the adjustment of the means 6 can be unique during installation done by hand. With changing operating requirements but is also the arrangement of a controllable actuator appropriate.
- FIG. 10 is a modification of that described with reference to FIG Embodiment shown so that the previous Description can be referenced.
- the drive nozzle 3 is assigned a Vorkanal 11, the against the flow direction of the air in the air supply channel 3 is aligned.
- This Vorkanal 11 may vary depending on Design of the air outlet cylindrical or rectangular be formed, such as in the embodiment gem. Fig. 8.
- each drive nozzle a separate Vorkanal be assigned. Through this Vorkanal 11 is the inflow to the motive nozzle 3 against eddies and disturbances from the area of the deflection to the lateral exit field 4 shielded.
- the inlet area of the pre-channel 11 may, must but not, with lamellar flow directors 8 be provided.
- Fig. 11 is a comparison with FIG. 10 modified embodiment shown.
- the Drive nozzle 3 arranged laterally to the exit fields 4, for example, above the exit fields 4 and that way, that the beam axis is inclined to the ground. That's it possible a targeted deflection of the supplied air jet, For example, to effect towards the ground, wherein over the Means 6 for influencing the flow of air within the Air outlet set the strength of the propellant air jet can be and also the flow velocity, in particular but also the volumetric flow of the underlying Outgoing fields 4 tuned into the room entering air volume can be.
- the acts of the drive nozzle. 3 emerging jet as a means of entrainment over the Outlet 4 supplied amounts of air.
- FIG. 10 a modification of the embodiment is gem.
- the air outlet with a side outlet corresponding to the exit field 4 13 provided.
- the side outlet 13 can in this case upwards and / or pointing down, d. H. it is also possible to have one corresponding side outlet at the bottom of the air outlet to arrange. Also the side outlet 13 are corresponding associated lamellar flow guide 8.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
- Ventilation (AREA)
- Duct Arrangements (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Air-Conditioning For Vehicles (AREA)
Description
- Fig. 1
- eine Seitenansicht des Luftaustritts im Querschnitt mit Strömungsteiler,
- Fig. 2
- eine Stirnansicht des Luftaustritts gemäß Fig. 1,
- Fig. 3
- eine Seitenansicht des Luftaustritts mit lamellenförmigen Strömungsleitelementen,
- Fig.
- eine Seitenansicht des Luftaustritts mit einer Drosselvorrichtung in Form von Lochplatten,
- Fig. 5
- eine Seitenansicht einer anderen Form eines Luftaustritts im Querschnitt mit gleichförmig verstellbaren, lamellenförmigen Strömungsleitelementen,
- Fig. 6
- eine Seitenansicht des Luftaustritts gemäß Fig. 5 mit gegenläufig verstellbaren, lamellenförmigen Strömungsleitelementen,
- Fig. 7
- einen Luftaustritt mit zwei Austrittsfeldern und Strömungsteiler,
- Fig. 8
- eine Frontansicht eines Luftaustritts gemäß Fig. 4, 5, 6 und 7,
- Fig. 9
- eine Aufsicht auf den Luftaustritt gemäß Fig. 4, 5, 6 und 7,
- Fig. 10
- eine Abwandlung der Ausführungsform gem. Fig. 5 mit Vorkanal für die Treibdüse,
- Fig. 11
- eine Abwandlung der Ausführungsform gem. Fig. 10.
- Fig. 12
- eine Ausführungsform gem. Fig. 10 mit Seitenauslaß.
Claims (13)
- Luftaustritt für Belüftungsanlagen zur Belüftung von Räumen, insbesondere hallenartigen Räumen, der am Austritt eines Luftzufuhrkanals angeordnet ist und wenigstens eine Treibdüse für einen Treibstrahl und wenigstens ein der Treibdüse benachbartes Austrittsfeld für Schleppluft aufweist, wobei Treibdüse und Austrittsfeld mit Zuluft unmittelbar aus dem Luftzufuhrkanal beaufschlagt werden und ein Eintrittsbereich der Treibdüse sich über einen Querschnittsbereich des Luftzufuhrkanals erstreckt, dadurch gekennzeichnet, daß am Austritt Mittel (6) zur Beeinflussung der Luftströmung im Luftzufuhrkanal (2) angeordnet sind, mit denen der Luftdurchsatz durch die Treibdüse (3) und deren Eintrittsbereich und durch das Austrittsfeld (4) im Verhältnis zueinander aufgeteilt wird.
- Luftaustritt nach Anspruch 1, dadurch gekennzeichnet, daß das Mittel (6) zur Beeinflussung der Luftströmung einstellbar ausgebildet ist.
- Luftaustritt nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Mittel (6) zur Beeinflussung der Luftströmung wenigstens einen Strömungsteiler (6.1) aufweist, durch den die Luftmenge auf die Treibdüse (3) und das Austrittsfeld (4) aufgeteilt wird.
- Luftaustritt nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Mittel (6) zur Beeinflussung der Luftströmung durch wenigstens eine wenigstens dem Austrittsfeld (4) angeordnete Drosselvorrichtung (6.2) gebildet wird.
- Luftaustritt gemäß einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Drosselvorrichtung (6.2) wenigstens zwei quer zur Richtung der Luftströmung und vorzugsweise mit Abstand hintereinander angeordnete Lochplatten (6.3) aufweist.
- Luftaustritt nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Lochplatten (6.3) zur Veränderung des Durchtrittswiderstandes in der Plattenebene gegeneinander verschiebbar sind, wobei der geringste Durchtrittswiderstand bei einer Stellung der Platten erreichbar ist, wenn die Löcher in Strömungsrichtung hintereinander liegen.
- Luftaustritt nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Mittel (6) zur Beeinflussung der Luftströmung mehrere relativ zueinander verschwenkbare, lamellenförmige Strömungsleitelemente (8) zur Leitung und/oder Hemmung des Luftstroms aufweist.
- Luftaustritt nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das Mittel (6) zur Beeinflussung der Luftströmung als Kassette (12) in den Luftzufuhrkanal (2) einschiebbar und herausziehbar ausgebildet ist.
- Luftaustritt nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Strömungsleitelemente (8) in einer Bezugsebene (10) nebeneinander angeordnet sind und daß diese Bezugsebenen gegenüber der Ebene des Austrittsfeldes (4) geneigt angeordnet ist.
- Luftaustritt nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß das Austrittsfeld (4) gegen die Achse des Treibstrahls geneigt ausgerichtet ist und zugleich eine Abschirmung (5) gegenüber der Raumluft bildet.
- Luftaustritt nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß der Treibdüse (3) ein in den Luftzufuhrkanal (2) gegen die Strömungsrichtung der Luft ragender Vorkanal (11) zugeordnet ist.
- Luftaustritt nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß der Vorkanal (11) an seinem Eintritt mit relativ zueinander verschwenkbaren lamellenförmigen Strömungsleitelementen (8) zur Veränderung des Luftdurchsatzes versehen ist.
- Luftaustritt nach einem der Ansprüche 1 bis 12, mit wenigstens einem gegen die Achse (7) des Treibstrahls geneigt ausgerichteten Austrittsfeld (4), dadurch gekennzeichnet, daß auf der dem Austrittsfeld (4) abgewandten Seite wenigstens ein Seitenauslaß (13) angeordnet ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29722570U DE29722570U1 (de) | 1997-12-20 | 1997-12-20 | Luftaustritt für Belüftungsanlagen |
| DE29722570U | 1997-12-20 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0924474A2 EP0924474A2 (de) | 1999-06-23 |
| EP0924474A3 EP0924474A3 (de) | 2000-11-08 |
| EP0924474B1 true EP0924474B1 (de) | 2005-05-11 |
Family
ID=8050289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98123339A Expired - Lifetime EP0924474B1 (de) | 1997-12-20 | 1998-12-08 | Luftaustritt für Belüftungsanlagen |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0924474B1 (de) |
| DE (2) | DE29722570U1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20040105A1 (it) * | 2004-01-27 | 2004-04-27 | Rg Group Spa | Condizionatore a dislocamento con diffusione dell'aria a vena aderente |
| FI20086182A7 (fi) * | 2008-12-10 | 2010-06-11 | Rc Linja Oy | Tuloilmalaite |
| DE102018112959B4 (de) * | 2018-05-30 | 2020-06-18 | Krantz Gmbh | Verdrängungsluftauslass |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3946647A (en) * | 1973-05-07 | 1976-03-30 | Aktiebolaget Svenska Flaktfabriken | Device for preferably cooling a room by a ventilation air stream |
| DE2851046A1 (de) * | 1978-11-25 | 1980-06-04 | Walter Ing Grad Hirsch | Luftauslassvorrichtung fuer raumklimatisierungs- und belueftungsanlagen |
| DE9309677U1 (de) * | 1993-06-30 | 1994-11-10 | Bernhardt, Adam, Zoetermeer | Luftaustritt für Belüftungsanlagen |
-
1997
- 1997-12-20 DE DE29722570U patent/DE29722570U1/de not_active Expired - Lifetime
-
1998
- 1998-12-08 DE DE59812785T patent/DE59812785D1/de not_active Expired - Fee Related
- 1998-12-08 EP EP98123339A patent/EP0924474B1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE59812785D1 (de) | 2005-06-16 |
| DE29722570U1 (de) | 1999-06-10 |
| EP0924474A3 (de) | 2000-11-08 |
| EP0924474A2 (de) | 1999-06-23 |
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