EP0472777A1 - Générateur de mouvement hélicoidal axial d'une sortie d'air pour installation de ventilation - Google Patents

Générateur de mouvement hélicoidal axial d'une sortie d'air pour installation de ventilation Download PDF

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Publication number
EP0472777A1
EP0472777A1 EP90124165A EP90124165A EP0472777A1 EP 0472777 A1 EP0472777 A1 EP 0472777A1 EP 90124165 A EP90124165 A EP 90124165A EP 90124165 A EP90124165 A EP 90124165A EP 0472777 A1 EP0472777 A1 EP 0472777A1
Authority
EP
European Patent Office
Prior art keywords
swirl
hub
drive
adjusting part
air passage
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
EP90124165A
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German (de)
English (en)
Other versions
EP0472777B1 (fr
Inventor
Jürgen Leichthammer
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.)
Kesslertech GmbH
Original Assignee
Kesslertech 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 Kesslertech GmbH filed Critical Kesslertech GmbH
Priority to AT90124165T priority Critical patent/ATE101915T1/de
Publication of EP0472777A1 publication Critical patent/EP0472777A1/fr
Application granted granted Critical
Publication of EP0472777B1 publication Critical patent/EP0472777B1/fr
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
    • 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

Definitions

  • the invention relates to a swirl sensor for an air outlet for ventilation systems with a tube with an inlet and an outlet nozzle designed with a radially outward-pointing, held by a hub arranged centrally in the tube, each having a swirl vane axis and adjustable with respect to its angle of attack .
  • the quality of the ventilation is essentially determined by introducing the air into a room to be ventilated. This is done in such a way that the supply air with its low or high temperature is blown into the room as a more or less closed jet via air outlets. Due to the aerodynamic conditions, the supply air mixes with the room air, whereby the temperature is equalized and thus the desired effect of cooling or heating. In addition to the exchange of thermal energy, there is also a material exchange, so that contaminants - dust, smoke, odors or the like - present in the room air are diluted.
  • the invention is therefore based on the object of developing an air passage with swirl generator of the type mentioned in such a way that the tuning and adjustment work is reduced and the adjustment of all swirl vanes of a swirl generator can be carried out simultaneously;
  • the swirl sensor should be simple and economical to manufacture and simple to use, possibly remote-controlled.
  • the hub arranged in the air passage is formed in two parts and has a hub body with at least one bearing ring with bearing grooves for the axes of the swirl vanes and an adjustable part which can be connected to the hub body and is rotatable with respect to the latter and which has drive means is provided, which cooperate with the swirl vane axes such that a rotation of the adjusting part about an axis lying in the direction of the air passage results in a rotation of all swirl vanes about their swirl vane axes, swirl vane axes being aligned transversely to the direction of the air passage.
  • Advantageous further developments and preferred embodiments describe the subclaims.
  • the essence of the invention is seen in the fact that the stub axles of the swirl vanes are rotatably mounted in the hub in such a way that rotation about their swirl vane axis is made possible when the adjusting part is rotated relative to the hub body.
  • the hub body at a radial distance from a central body, has at least one bearing ring with outer bearing grooves and one central body with inner bearing grooves for receiving the swirl vane axes, the outer and inner bearing grooves corresponding to these being aligned with one another, the height of which corresponds to the diameter of the swirl vane axes corresponds and the bases of which are preferably designed as semicircular bearing shells, and that the adjusting part has a concentric drive ring and the swirl vane axes cooperating with the drive ring drive means, the drive ring with the drive means of the axis of the swirl vanes with the hub assembled in an annular space inside the outer Bearing ring.
  • the hub at least one bearing ring, each with an outer bearing groove for each of the swirl vanes and further inner bearing grooves, the number of bearing grooves corresponding to the number of swirl vanes and the distribution of the bearing grooves over the circumference of the bearing ring being uniform, so that one of the swirl encoders is one Has central symmetry.
  • the inner bearing grooves are advantageously provided in the central body, but this does not rule out the use of an additional bearing ring.
  • an inner and an outer bearing groove are provided for each of the swirl vanes, which are aligned in pairs with one another in accordance with the number of swirl vanes and into which the swirl vane axes are inserted.
  • An adjusting part which is placed on the hub body and fixed there and can be rotated relative to it about the axis of the air passage presses with at least one support ring with an annular rolling path on the swirl vane axes and thus holds them in the desired position.
  • the swirl vane axes can roll on the rolling path of the opposing support ring / rings of the adjustment part without tilting.
  • the setting part also has a revolving line drive ring on, and each of the swirl vane axis a cooperating with this drive ring drive roller, which is pressed against the drive ring when the adjustment part is fixed and fixed and is carried along via the frictional or form-locking connection when the adjustment part is rotated, as a result of which entrainment the adjustment of all swirl vanes done together.
  • This drive ring also acts as a further abutment, which holds the stub axle in position together with the first abutment and reliably prevents tipping if the swivel vane axes are not separately supported in a second bearing groove.
  • either the hub body is formed as an air passage-proof part of the hub, with respect to the air passage with respect to a rotation about its axis
  • the adjusting part is designed as an air passage-proof part of the hub, fixed with respect to the air passage. It is initially irrelevant whether the hub body provided with the receptacles for the stub axle or the adjusting part or both parts forming the hub are freely rotatable with respect to the air passage around the axis of the air passage. It is only important that the two hub parts can be rotated against each other.
  • either the upstream part of the hub, hub body or adjusting part, or the downstream part of the hub, hub body or adjusting part is arranged in an air-permeable manner, as seen in the air flow direction.
  • the rotation of the other part is simplified in that the air-permeable hub part does not have to be kept separately.
  • the part of the hub which is fixed to the air passage can advantageously be fixed with a bracket which is supported against the tube of the air passage and which, in a further development, engages around the adjusting part arranged upstream.
  • This design creates a simple and particularly economically feasible solution for fixing the air passage-proof part of the hub, which is independent of a central hub attachment.
  • a frictional engagement can be established between the annular surface of the drive ring which interacts with the drive means of the swirl vane axes.
  • the surfaces of the drive means are pressed against one another; if necessary, the surface is shaped by a special design which increases the friction in such a way that a safe entrainment is achieved.
  • the circular surface can also be shaped like a truncated cone by an inclined position, which increases the interacting surfaces.
  • the frictional engagement merges into a certain positive engagement, which is perfected by the formation of the interacting surfaces of the drive ring of the adjusting part of the hub and drive means of the stub axles of the swirl vane axes as a toothed ring or gear wheels.
  • the positive engagement of the drive means is forced by the positive locking, which moreover results in a rigid synchronization of the swirl vane movement.
  • the toothing is designed as a bevel gear toothing. In both cases, it is sufficient if the interacting surfaces are structured or interlocked only in the areas that come into engagement with one another. It may therefore be sufficient if the drive rollers of the swirl vane axes interact with sector-shaped drive areas, such as friction or tooth sectors, on the drive ring.
  • the inner wall of the outer bearing ring is provided with support surfaces provided on both sides of the bearing grooves, while the drive rollers are designed so that their sides facing the support surfaces bear against them, which may be achieved with a molded collar. If the forces act inwards, the ends of the swirl vane axes are cut to length so that the inner bearing grooves absorb these forces. As a result, both possible embodiments with respect to the taper inclination can be realized.
  • the hub body and the adjustment part are designed such that they can be joined together like push buttons in the manner provided with interacting engagement elements.
  • the edge of the one hub part — hub body or adjusting part — can overlap the edge of the other part, with locking lugs ensuring the connection.
  • the hub body is provided with a central bolt which has a locking head and which is provided in a bolt receptacle provided in the adjusting part and provided with a locking groove can be inserted and locked there, the free end of which, preferably formed by means of a slot, elastically spreadable and provided with a gripping head, engages in the enlarged part of the receptacle and fixes the adjusting part there with respect to a movement in the direction of the axis of the air passage, but with respect to a rotary movement is movable about its axis.
  • the reversal - central bolt on the adjusting part, bolt receptacle in the central body of the hub body - can also be advantageously produced and used.
  • the inflow-side part of the hub can be provided as the air-permeable hub body, so that the adjusting part is located on the outflow side.
  • the air passage-proof hub part can be carried directly by the central adjusting and holding spindle provided in such air passages, wherein the setting can also be preceded by a height adjustment.
  • attachment by means of a bracket is also possible, for example if the central spindle is not present or is required for other purposes.
  • the outflow-side part of the hub can be provided as an air-permeable hub body, so that the adjustment part is located on the inflow side.
  • the adjustment is carried out in the simplest manner via a thrust drive connected to the adjustment part, which acts preferably on a sleeve which extends the adjustment part axially to outside the swiveling range of the swirl vanes, at right angles to the axis of the air passage, a thrust linkage being provided between the cylinder and drive.
  • the possible stroke is limited so that an adjustment of the adjusting part by at most about 90 ° is possible.
  • the attack is therefore carried out laterally so that the 90 ° position is reached approximately in the middle of the adjustment movement.
  • the thrust linkage is corrugated in a manner known from sheet metal deformation, so that it has a section modulus which is able to absorb the thrust forces.
  • the articulation is expediently carried out on a ring attachment on the adjusting part, which brings the push rod out of the swivel range of the swirl vanes.
  • a pin on the ring interacts with the thrust linkage via a joint, with radial play being provided due to the transformation of the linear thrust movement into a circular arc movement.
  • the push rod can be carried out through the wall of the tube of the air outlet because of the (relatively) short and slow movements during the adjustment, which is only to be carried out at larger intervals, with a simple sleeve made of rubber or rubber-like plastics.
  • a central spindle connected to the adjusting part can be provided, which in turn is operatively connected to a servomotor.
  • the adjustment motor is arranged in the air flow.
  • the hub body carrying the swirl vanes is also fixed here in relation to the air outlet. This can be done both by an abutment on the inner wall of the air outlet in the plane of the swirl vane axes for receiving and supporting these axles, these axially extended axles engaging in these abutments and thus preventing rotation of the hub with the swirl vanes around the axis of the air outlet becomes.
  • other definitions are also possible, e.g.
  • brackets with which the hub is supported against the tube of the air outlet, the brackets being guided such that they extend outside the adjustment range of the swirl vanes.
  • Such a definition of the hub is always necessary when a central spindle is not available or when it is needed for other tasks.
  • the degree of adjustment is inevitably determined by e.g. Drive controlled by a control center, feedback of the position reached can be achieved with the usual feedback means.
  • At least the adjustment part is expediently and economically produced as an injection-molded plastic part, especially since in this production the driving surfaces which transmit the adjusting forces can be shaped appropriately in a conventional manner.
  • the same also applies to the driver rollers which are arranged on the stub axles of the vanes which produce the swirl.
  • the surface structures causing the frictional engagement or the positive engagement are predetermined in the injection mold, so that post-processing can be omitted.
  • FIG. 1 shows a partially sectioned schematic view of an air passage 1 with a central swirl generator 10.
  • the air passage 1 is formed by a tube 2, the inflow opening 3 of which is connected to the supply air line of the ventilation system supplying the space to be ventilated.
  • the supply air fed in by this system flows through the outflow opening 4 formed by the nozzle outlet 5 into the space to be ventilated and receives the swirl shortening the mixing section before the outflow by means of the swirl generator 10.
  • This swirl sensor 10 is fastened in the tube 2 by means of the holding struts 6, the holding struts 6 arranged at an angle of 120 ° carrying a central nut holder 7 for a central spindle 8.
  • the swirler 10 is arranged, the hub 11 of which is screwed onto the central spindle 8.
  • the hub 11 consists of two parts, the air-permeable hub part 11.1 and the rotatable adjusting part 11.2, which can be actuated from the outflow side for adjusting and adjusting the swirl vanes 20.
  • FIG. 2 and 3 schematically show hubs with separately drawn and partially cut hub body and adjustment parts, the air passage-resistant hub part being arranged on the inflow side of the hub (FIG. 2) and on the outflow side (FIG. 3).
  • the air-permeable hub part 11.1 has the receiving grooves 12.1 and 12.2 for the axes 21 (FIGS. 4, 5) of the swirl vanes 20 (FIG. 1) and a circumferential annular space 11.3 in which the drive rollers 22 (FIG. 4, 5) of the swirl vane 20 engage, this annular space 11.3 ensuring the free rotatability of these drive rollers.
  • Both hub parts 11.1 and 11.2 are joined together by means of a central bolt 15, a rear engagement head 15.1 on the central bolt 15 having a corresponding locking groove 13.1 in the bolt receptacle 13.2, which cooperates in the central body 13 of the hub body 11.1 in such a way that the adjusting part in the axial direction of the hub 11 (Fig. 1) and thus the air passage 1 is fixed, but is movable against rotation.
  • the central bolt 15, which is in itself elastic is provided with slots 15.3, which can be provided, for example, opposite one another or at an angular distance of 120 °.
  • FIG. 2a illustrates the shape of the annular space 11.3 in the case of conical drive means, the position of the conical surfaces being such that the drive rollers 22 are pressed outwards.
  • the inside of the outer bearing ring 12 is provided on both sides of the outer bearing grooves 12.1 with flat support surfaces 12.3, against which the drive rollers 22, optionally provided with molded collars or interposed disks, are non-positively supported.
  • FIGS. 4 and 5 An exemplary embodiment of the drive is shown in FIGS. 4 and 5, which on the one hand show the partially sectioned top view of a hub 11 with the outflow-side adjustment part 11.2 and on the other hand its side view, also partially sectioned.
  • the swirl vanes 20 (FIGS. 1, 6, 8) sitting on the swirl vane axles 21 were themselves omitted.
  • the swirl vane axes 21 or their stub axles 21.1 are received by the externally and internally arranged groove-shaped receptacles 12.1 and 12.2, which are basically adapted to the circular shape of the swirl vane axles 21 or their stub axles 21.1, the depth of the receiving grooves 12.1 being the diameter of the swirl vane axles 21 or whose axle stub corresponds to 21.1.
  • the attached adjustment part 11.2 presses on the one hand with its support ring 14 with an edge designed as a rolling track 14.1 on the swirl vane axes 21 and on the other hand with the ring-shaped drive track 17 on its drive rollers 22. Both are designed as a ring, the rolling track 14.1 being a circular ring, the drive track 17 forms a truncated cone. However, it goes without saying that the drive track can also be circular or the truncated track can be frustoconical.
  • the drive track 17 is shaped so that its surface with the corresponding drive rollers 22 on the swirl vane axes 21 frictionally or positively interacts.
  • a positive connection is represented by a conical toothing 17.1 or 22.1, without the invention being restricted to this.
  • the setting is carried out manually, for which purpose a recess in the form of a cross-slot receptacle 16 is provided on the end face of the setting part 11.2, into which a cross-head screwdriver can be inserted for turning the setting part.
  • the degree of adjustment can be read from an adjustment scale 18 arranged on the hub part 11.1, over which a pointer nose 19 provided on the adjustment part 11.1 is guided.
  • FIGS. 6 to 8 show performance forms which can be combined with e.g. a drive for the adjustment of the swirl blades which can be controlled by a central control center are provided.
  • the adjusting drive in the embodiment shown in FIGS. 6 and 7 is a linear actuator 23 and in the embodiment shown in FIG. 8 a central rotary drive by means of an adjusting motor 25.
  • FIGS. 6 and 7 show that a lateral cylinder 23.1 - approximately on the tube held by means of cylinder brackets 23.2 attached to the outside of the tube - arranged, for example, with hose lines (not shown) is connected to a hydraulic system via a control valve.
  • the piston rod of the thrust cylinder 23.1 is continued in the thrust linkage 24, which in turn interacts with the adjusting part 11.2 of the hub 11 by means of a thrust joint 24.1.
  • This adjusting part 11.2 is extended with a sleeve 26 (here carrying the hub) surrounding the central spindle in the axial direction so that the push rod 24 comes to lie outside the pivoting range of the adjustable swirl vanes 20.
  • the sleeve 26 connected to the hub 11 in a rotationally secured manner is provided with a pin 26.1 which is gripped by the thrust joint 24.1 and is carried along when the thrust linkage 24 is pushed.
  • the pin 26.1 is arranged relative to the position of the thrust cylinder 23.1 so that the thrust linkage 24 is almost tangential to the sleeve 26 over the entire swivel range.
  • the slight deflection during the thrust movement converted into a circular arc can be absorbed, for example, with a corresponding design of the thrust joint 24.1 or with a movable attachment of the thrust cylinder 23.1.
  • the push rod 24 is expediently formed by a corrugated sheet metal strip, a particular stiffness being achieved when two corrugated sheet metal strips are connected to the push rod 24 with opposite beads, which also results in an advantageous design option for the push joint 24.1.
  • the central rotary drive shown in FIG. 8 acts directly or via an intermediate gear connected downstream of the drive motor 25 on the central spindle 6.
  • both a hub 11 with an inflow-side adjustment part and one with an outflow-side adjustment part 11.2 can be used, but with the definition of the air passage-resistant Hub body 11.1 must be done separately, since the central spindle 8 is no longer available for the determination of this hub part.
  • the swirl vanes 20 are adjusted with the adjusting motor 25 arranged in the central axis of the tube 2 of the air outlet, which is connected via a connection box 25.2 with a connecting line with e.g. is connected to the central control center.
  • the rotor of the adjusting motor 25 acts directly on the central spindle 8, which transmits the rotary movement of the adjusting motor 25 to the setting part 11.2 of the hub 11.
  • the embodiments with an adjustment drive regardless of whether designed as a thrust or as a rotary drive, also allow in special cases a regulation of thermodynamic or hygienic parameters in the ventilated space from an air outlet with a swirl device, a possibility that is only possible through the reproducible adjustment the swirl wing is opened up.
  • the construction of all swirl vanes of an air outlet is ensured uniformly. With appropriate control it can also be achieved that the swirl vanes of all air passages of at least one ventilation area can be adjusted simultaneously and uniformly.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Air Conditioning Control Device (AREA)
  • Duct Arrangements (AREA)
  • Air-Flow Control Members (AREA)
EP90124165A 1990-08-25 1990-12-14 Générateur de mouvement hélicoidal axial d'une sortie d'air pour installation de ventilation Expired - Lifetime EP0472777B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90124165T ATE101915T1 (de) 1990-08-25 1990-12-14 Drallgeber fuer einen luftdurchlass fuer lueftungstechnische anlagen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4026961A DE4026961A1 (de) 1990-08-25 1990-08-25 Drallgeber fuer einen luftdurchlass fuer lueftungstechnische anlagen
DE4026961 1990-08-25

Publications (2)

Publication Number Publication Date
EP0472777A1 true EP0472777A1 (fr) 1992-03-04
EP0472777B1 EP0472777B1 (fr) 1994-02-23

Family

ID=6412947

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90124165A Expired - Lifetime EP0472777B1 (fr) 1990-08-25 1990-12-14 Générateur de mouvement hélicoidal axial d'une sortie d'air pour installation de ventilation

Country Status (3)

Country Link
EP (1) EP0472777B1 (fr)
AT (1) ATE101915T1 (fr)
DE (2) DE4026961A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2338546A (en) * 1998-06-17 1999-12-22 Juergen F Eidmann A ceiling air outlet
WO2004001299A1 (fr) * 2002-06-24 2003-12-31 Jozef Kuran Sortie d'air montee au plafond
CN112556460A (zh) * 2020-12-30 2021-03-26 金丽美 一种圆管管翅式换热器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009041532B4 (de) 2009-09-15 2011-11-24 Trw Automotive Electronics & Components Gmbh Dralleinrichtung für einen Luftausströmer
DE102013001129A1 (de) * 2013-01-24 2014-07-24 Volkswagen Aktiengesellschaft Luftauslass und Fahrzeug mit einem derartigen Luftauslass
DE102013001128A1 (de) * 2013-01-24 2014-07-24 Volkswagen Aktiengesellschaft Luftausströmer einer lüftungstechnischen Anlage sowie Fahrzeug mit zumindest einem derartigen Luftausströmer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2902733A1 (de) * 1979-01-25 1980-08-07 Kessler & Luch Gmbh Luft-drallauslass fuer klimaanlagen
DE3411056A1 (de) * 1984-03-26 1986-01-16 Klima & Kälte GmbH, 6300 Gießen Luftdrallauslass fuer klimaanlagen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2902733A1 (de) * 1979-01-25 1980-08-07 Kessler & Luch Gmbh Luft-drallauslass fuer klimaanlagen
DE3411056A1 (de) * 1984-03-26 1986-01-16 Klima & Kälte GmbH, 6300 Gießen Luftdrallauslass fuer klimaanlagen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2338546A (en) * 1998-06-17 1999-12-22 Juergen F Eidmann A ceiling air outlet
FR2780141A1 (fr) * 1998-06-17 1999-12-24 Jurgen Eidmann Sortie d'air, en particulier sortie d'air de plafond
GB2338546B (en) * 1998-06-17 2002-01-02 Juergen F Eidmann An air outlet, particularly a ceiling air outlet
WO2004001299A1 (fr) * 2002-06-24 2003-12-31 Jozef Kuran Sortie d'air montee au plafond
CZ297707B6 (cs) * 2002-06-24 2007-03-07 Kurán@Jozef Výpust
CN112556460A (zh) * 2020-12-30 2021-03-26 金丽美 一种圆管管翅式换热器

Also Published As

Publication number Publication date
DE59004700D1 (de) 1994-03-31
DE4026961A1 (de) 1992-02-27
ATE101915T1 (de) 1994-03-15
EP0472777B1 (fr) 1994-02-23

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