EP0641603B1 - Arroseur, notamment pour l'irrigation de la végétation - Google Patents

Arroseur, notamment pour l'irrigation de la végétation Download PDF

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Publication number
EP0641603B1
EP0641603B1 EP94113286A EP94113286A EP0641603B1 EP 0641603 B1 EP0641603 B1 EP 0641603B1 EP 94113286 A EP94113286 A EP 94113286A EP 94113286 A EP94113286 A EP 94113286A EP 0641603 B1 EP0641603 B1 EP 0641603B1
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EP
European Patent Office
Prior art keywords
fluid
jet
flow
inlet
channel
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EP94113286A
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German (de)
English (en)
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EP0641603A1 (fr
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Gardena Manufacturing GmbH
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Gardena Kress and Kastner GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/0409—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements
    • B05B3/0418—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements comprising a liquid driven rotor, e.g. a turbine
    • B05B3/0422—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements comprising a liquid driven rotor, e.g. a turbine with rotating outlet elements
    • B05B3/0431—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements comprising a liquid driven rotor, e.g. a turbine with rotating outlet elements the rotative movement of the outlet elements being reversible
    • B05B3/0436—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements comprising a liquid driven rotor, e.g. a turbine with rotating outlet elements the rotative movement of the outlet elements being reversible by reversing the direction of rotation of the rotor itself

Definitions

  • the invention relates to a sprinkler according to the preamble of Claim 1.
  • the fluid usually water
  • the fluid is to be discharged via a relatively long distance from e.g. several meters from Sprinkler head or sprinkler outlet are removed so that it covers a predetermined irrigation field, most of the time is approximately horizontal or a horizontal position Forms the basis of measurement.
  • the water from the outside adjacent sprinkler exit via a free jet path, mostly a parabola-like throwing track, released under pressure and off there is no further contact with or immediate exit
  • the fluid jet is guided through the sprinkler more.
  • sprinklers can be used during the Operation stationary output or such used in which the fluid jet is one to its longitudinal direction transverse transverse movement e.g. thereby conveyed is that the sprinkler head is approximately parallel to the irrigation field and / or transverse movement, like a constant one rectified and / or a reciprocating rotary movement or executes an axial movement.
  • To the fluid jet To be able to discharge as far as possible is approximate horizontally or approximately vertically upwards or downwards directional orientations of the exit one below about 30 preferred up to 45 ° inclined upward orientation, where z. B. by rod-shaped or extendable upwards Training the sprinkler head a relatively high location of the exit opposite or above the irrigation field can be.
  • Such a sprinkler is e.g. B. in the EP patent application 410 198 or in EP patent application 362 559 described on the inclusion of those explained there Features and effects related to the present invention is taken.
  • the fluid flow is appropriately chosen so that it is linearly calm Flow is fed to the nozzle outlet, and the fluid jet leaves the nozzle outlet as a so-called pricking jet, which the fluid outlet as possible without substantial spraying leaves sharply bundled and also bundled over several meters can stay.
  • This stinging beam then fanned in greater distance from the fluid outlet and irrigated Irrigation field of predetermined area size with an average Irrigation density per unit area, which is appropriate over the Irrigation field is essentially constant.
  • the exit or the place last touch of the fluid jet with the sprinkler Beam perturbator is formed that is rhythmic in the stab is moved and thereby a spray for each time causes the close range.
  • the short spray pulses are usually sufficient not out, the close range or the field between the irrigation field the jet and the sprinkler with about the same Irrigation density like the sting irrigation field too water. Even if the lancing jet or the sprinkler outlet by a jerky transverse movement from a rest position in a next one is moved during this impulse movement the range of the fluid jet is slightly reduced, but not in such a way that the close range in the is irrigated.
  • a sprinkler has become known from US-A-4,281,793 although drive means for reversing the direction of the transverse movement of the Fluid jets and a control device for changing the Has beam width, but this control device works completely independent of the reversal of direction, namely depending from the angular position of the sprinkler head a control unit.
  • the control device is used for Passage cross section of a control disc changed, whereby different throttle cross sections and therefore also result in different throughputs of the water.
  • the invention is also based on the object of a sprinkler to create the disadvantages of known training or of the type described are avoided and in particular with a long range, e.g. in the direction of its beam axis irrigation field enlarged towards the sprinkler with over the extent of which is approximately uniform ensures that in the top view also a sprinkler up to a few meters or less than one meter from the controller removed or possible right up to the sprinkler exit is.
  • the sprinkler should be as safe as possible in operation or less susceptible to interference or in the area of Sprinkler output no movements during operation have executing parts or control elements.
  • the features according to claim 1 intended. They include means to keep the fluid inside it Sprinkler head or in the flow direction in front of the exit to influence or redirect with regard to a flow, that it is the sprinkler in very different jet shapes or leaves with very different ranges.
  • the different jet shapes are from the sprinkler expediently at least partially in succession delivered, e.g. immediately and essentially without interrupting the discharge adjoining each other or with less Overlap such that the discharge of the subsequent jet shape shortly before the termination of the previous one Beam shape begins. It is conceivable to have more than two different ones Provide jet shapes and limit them appropriately the two irrigation fields each have two different ones Beam shapes essentially overlap or overlap they each other slightly, so that complete irrigation given is.
  • a manually operated changeover drive expediently one is provided which runs during the operation of the sprinkler and according to predetermined Time or path intervals make the switchover.
  • the drive energy is expedient to that of the sprinkler flowing fluid removed, the drive itself the Flow alternately in the manner described can influence. Depending on the requirements, this can be done the fluid discharge volume delivered per unit of time during operation with separate jet shapes approximately the same or be different, e.g. B. so that the lower discharge volume at least half or three quarters of the larger Discharge volume is and for the larger or smaller Range is provided.
  • the flow can be influenced by numerous different ones Measures are effected, each one individually or can be provided in combination.
  • a automatically in different functional positions during operation transferable and / or manually adjustable or adjustable flow disturbance member can be provided in a Position a relatively linear and calm flow to the exit and in at least one other Position this flow with effect swirled to the exit.
  • separate fluid paths can be provided which the flow differs in the manner described influence and alternately stronger or weaker flows through or at least partially through closure locked or opened.
  • Separate flow paths can by separate channel sections or a common channel section or a chamber can be formed in which alternately flows in different directions or is led over different distances, e.g. B. through guiding surfaces.
  • the water for a Jet shape in a flow roller rotating around the channel axis be guided while it is for the other beam shape less strong or essentially not rotating and with Appropriate flow behavior reached the exit.
  • a chamber adjoining and opposite expediently many times narrower and not axially symmetrical Intake of a channel section alternately in different Directions are poured towards each other Flow direction a different flow behavior of the water in this section of the canal and the water with it Flow behavior essentially led to the exit becomes.
  • guide surfaces can be moved by hydropower be or form wide chambers in which the water e.g. B. in a rotary motion over a rotational path of more than 90, 180 or approximately 270 degrees.
  • one of the described in the fluid guide Switchable between different throttle effects Throttle can be provided through which the flow volume or the fluid pressure at the outlet is changed.
  • the sprinkler forms a self-contained unit, which with a Appropriately fixed provided on their base body Inlet to a fluid source, in particular a pressure source, is to be connected, the said control means expedient in the direction of flow after this inlet or at most in Area of this inlet are provided.
  • the flow path of the fluid between the control means influencing the flow or Control elements and the output as small or smaller as possible than the corresponding distance from the inlet.
  • the inlet of the end channel can face one connect it with a chamber that has been expanded or enlarged several times, in which the current calms, swirls, in different Directions and / or over different lengths Ways can be led.
  • the inlet of the end channel or leading channel section can be like at least one control element directly influencing the flow approximately in the plane of a boundary wall of the chamber, where compared to a position in a jacket wall, a position in a Front wall is preferable. It is also advantageous if the passage cross section of this inlet compared to that the remaining end channel reduced in the manner of a throttle point and when the end channel is almost up to the nozzle inlet has constant passage cross-sections and not annular, but free of a channel core over its entire Cross section is open up to its central axis.
  • the flow cross section of the inlet of the end channel however expediently much larger than that of the sprinkler outlet.
  • the sprinkler 1 designed as a sector sprinkler has an in Fig. 1 shown sprinkler head 2, the or Sprinkler nozzle Rotation ranges in the controlled flow and return passes through, the rotation ranges continuously between about 20 ° and 360 ° are adjustable.
  • a fluid drive 3 is provided, which in one of the nozzle head 5 separate drive housing 6 is arranged, wherein the nozzle head 5 and the drive housing 6 the base body 4 form the sprinkler head 2.
  • the drive housing 6 consists of two axially assembled housing parts 7, 8, and a housing part 8 is the housing-shaped nozzle head 5 with axially placed a cap or jacket section so that its outer circumference is an almost continuous continuation the outer peripheries of the housing parts 7, 8 forms.
  • a reversing control 9 provided, which depending on the path or at the end one Direction of rotation by mechanical stop toggles.
  • the base body 4 and the housing 5, 6 guide together with the drive 3 opposite the rotary movement a shaft, which at the lower end of the housing part 7 with approximately its outer width and one Ring for the engagement of an output rotor of the drive 3 has.
  • Irrigation jet To change the jet shape of the exiting from the sprinkler 1 Irrigation jet is a control device 10 with a plurality of control elements 11, 13 to 20, 23 to 30 and 32 to 36 are provided, which are either fixed or form moving control elements during operation.
  • Output 11 is in the uppermost area of sprinkler head 2 or of the nozzle head 5 close to the approximately cylindrical envelope surface of the base body 4.
  • the water inlet 12 is at the bottom End of the base body 4 or can be through a connection piece be formed on a base which holds the sprinkler head 2 rotatably receives and possibly formed by the shaft, in which the top of the sprinkler head 2 approximately finally flush into a non-operational position or by water pressure back up to the axis of the Exit 11 is extendable.
  • the housing parts form between the input 12 and the output 11 of the base body 4 one through numerous sections or channel sections or chambers formed fluid guide 13, via which the drive 3 is also operated.
  • a lower end wall of the housing part 7 and e.g. B. by a rotatable receiving the sprinkler head 2 hollow axis of the base formed entrance 12 closes one laterally offset from the center axis of the sprinkler head 2 Control chamber 14, which through the two housing parts 7, 8th is limited and the reversing control 9 receives.
  • a upper end wall formed by the housing part 8 Control chamber 14 is of two upright channel sections 15, 16 penetrates, which on both sides of this end wall protrude like a pipe socket so that its lower ends are connected to the control chamber 14.
  • the upper ends of the spaced adjacent to each other lying channel sections 15, 16 open into one of the other side of said end wall of the housing part 8 adjoining control chamber 17, which is down to wall thicknesses approximately the same width as the housing parts 5, 8 and is limited by this.
  • Open into this control chamber 17 the two channel sections 15, 16 each with one in their Longitudinal slot-shaped fluid nozzle 18, 19, the Direction of discharge of the fluid nozzles 18, 19 under a pointed Angles of about 40 ° apart from each other against the inner circumference of the Control chamber 17 are directed.
  • the central axis of the Control chamber 17 are approximately parallel fluid nozzles 17, 18 symmetrically on both sides of an axial plane of the control chamber 17 as well as opposite to the axial plane perpendicular to it Inner circumference of the control chamber 17 set back.
  • the central axes of the fluid nozzles are located 18, 19 on the inner circumference of the control chamber 17 opposite to it Center axis apart at an arc distance of 90 ° or more.
  • control chamber 17 In the control chamber 17 is also a control rotor 20 by one to the central axis 22 of the control chamber 17 or the base body 4 parallel, but eccentric rotor axis 21 rotatable stored, the outer periphery immediately adjacent to the Fluid nozzles 18, 19 is located so that it approximately covers them.
  • the relatively broad bowl shell of the approximately bowl-shaped Control rotor 20 is approximately radially aligned and with gaps between successive guide or vane bars formed between which the fluid nozzles 18, 19th escaping water can enter immediately. On the inner circumference the gaps are closed by a coat that too closed at its bottom closer to the housing part 7 is.
  • the rotor axis 21 on the one hand and the fluid nozzles 18, 19 on the other hand are by far both sides of those Axial plane of the control chamber 17 is provided, which to the between the common axial plane lying the fluid nozzles 18, 19 the control chamber 17 and the control rotor 20 is rectangular.
  • the essential compared to the inner circumference of the control chamber 17 smaller outer circumference of the control rotor 20 extends to one Place close to this inner circumference.
  • an inlet 25 is provided which is transverse to the central axis 22 an extension that is about half as large as in Has circumferential direction about the central axis 22.
  • the one opposite the Outer circumference of the control rotor 20 in the associated area having a smaller distance from the inner circumference of the control chamber 17 Inlet 25 is shown in FIG.
  • the inlet 25 forms that in the direction of flow at the back of an immediate Exit 11 leading end channel 26 of the nozzle head 5 and lies in an acute angle to the central axis of this end channel 26 Plane of about 30 to 45 °, so that the inner circumference of the End channel 26 directly at a sharp angle to the central axis 22 adjoins narrower end of the inlet 25, while the inner circumference of the end channel 26 to the opposite End of the inlet 25 approximately at right angles whose level joins.
  • the end channel 26 is wider or wider than the inlet 25, however, it is at that of the Fluid nozzle 18 side of the inlet 25 approximately connects tangentially so that it is closer to the Fluid nozzle 18 lying side in its radial direction protrudes the inlet 25.
  • the end channel 26 is in this area from the control chamber 17 through a thin control web 27 separated, which is the associated, almost straight as well as longitudinal boundary 27 of the fluid nozzle directed away Inlet 25 forms and up to which approximately the associated Guide surface 23 is sufficient.
  • the lower outer surface of the control bridge 27 lies approximately in the plane of the inside of the end wall 24, which also has closure members with which the upper ends of the channel sections 15, 16 closed in this way are that only the fluid nozzles leading away from their circumference 18, 19 are open.
  • the top face of the control rotor 20 with a small gap distance almost reaches the front wall 24.
  • the channel is approximately diametrical to axis 22, so that the outlet 11 and the inlet 25 are facing away from each other Sides of the axis 22 are provided axially offset from one another are.
  • the outlet 11 is easy through a nozzle 28 or one replaceable in the nozzle head 5 inserted nozzle insert formed, which fits tightly with a sleeve in the end channel 26 protrudes and within this the nozzle entrance 29 forms.
  • the distance between the nozzle inlet 29 and the inlet 25 or control member lying at an acute angle thereto 27 is less than three times or twice the inner width of the end channel 26, against which the inner width of the Entrance 29 is only slightly reduced.
  • From the nozzle entrance 29 extends in substantially the same width in Flow direction an input channel up to one essential narrowed, shorter and cylindrical nozzle channel 30, in which the input channel has a truncated cone Section merges and its length is at most as long as its width or, on the other hand, is smaller.
  • the end channel 30 can be at the outer end and on a smaller one Part of its length should be funnel-like, being this Extension of the sprinkler outlet 11 on a free end face forms, which is of a relatively narrow, annular Tear-off edge for the beam is surrounded.
  • the exit 11 can be in the radial distance and annular from another and be further protruding coat surrounded, the free end on the inner circumference from the exit 11 escaping water jet is touched, if this is about fanned out at the cone angle of the output 11 and thereby being discharged as a spray jet.
  • In the input channel can be distributed over the circumference to calm the flow Longitudinal ribs are provided, which still have a central one Leave the area at least the width of the end channel 30 corresponds or is larger.
  • the exit 11, the end channel 26, the nozzle inlet 29 and the nozzle channel 30 are expediently coaxial to each other in the axis 31 of the Nozzle insert 28, which has only a single channel section forms for the fluid.
  • the distance between entrance 29 and Output 11 is approximately in the order of the remaining length of the Channel 26
  • the middle or between the fluid nozzles 18, 19 Axial plane of the axes 21, 22 is denoted by 37, while the right-angled axial plane of the central axis 22 with 38 is designated and approximately by the center of the width of the Inlet 25 goes.
  • One to the boundary edge of the control web 27 is approximately parallel axial plane 39 of the central axis 22 offset from the axial plane 38 to the fluid nozzle 18 and relative to the axial plane 38 at an angle of a few Degrees.
  • the distance of the fluid nozzle 18 from the inlet 25 is approximately in the order of its width or is in contrast, smaller, this fluid nozzle 18 is a direction of rotation of the control rotor 20 caused by the fluid nozzle 18th is directed directly to the inlet 25 by the shortest route.
  • the other fluid nozzle 19 causes an opposite direction of rotation of the control rotor 20 so that the exiting from it Water over most of the circumference of the rotor 20 must be taken until it is the opposite of the control member 27 Limit of inlet 25 reached.
  • the Control member 27 covers part of the passage cross section of the Channel 26 opposite the chamber 17, and the inlet 25th is eccentrically adjacent to the axes 21, 22 laterally to the central axis 37.
  • the end channel 26 is over most of its length cylindrical, but due to its inclined position in the area of Inlets 25 cross sections perpendicular to this, that deviate from the circular shape, namely approximately are oval, but with the oval apex associated with inlet 25 approximately in the plane of the inside of the end wall 24 is cut off at a third of the oval height.
  • the channel wall 32 also goes from the associated inside of the Stegsteges 27 out.
  • a valve is for reversing the two fluid nozzles 18, 19 33 provided, which is expedient within the control chamber 14 lies and the two-armed rocker-shaped closing part 34 directly onto the inlets of the channel sections 15, 16 acts by sealing against one of the two End faces of the tubular extensions and the other Inlet opens to the control chamber 14.
  • the closing part 34 is actuated by a valve control 35, which by a the lower end wall of the control chamber 14 down and free Has rod-shaped protruding actuator 36. This lies laterally adjacent to the central axis 22 on the of the Axis 21 opposite side, so that it with the base body 4th around the axis 22 an arc movement corresponding to the angle of rotation executes.
  • the actuator 36 moves between manually adjustable independently, not attacks shown in detail, which are mounted on the base are. If the actuator 36 hits a stop, so it becomes about an axis 22 and its longitudinal axis right-angled axis pivoted by a few degrees and takes over one within the control chamber 14 lying control rocker the closing member from the previous one Tax position in the other tax position an intermediate spring so that the closing member 34 resilient pressed against the associated valve seat and thereby the Fluid enters the control chamber 17 from a fluid nozzle 18 or 19 is switched to the other.
  • the attacks can on the one hand the angular position and on the other hand the angular size irrigation sector.
  • Control device 10 serves as a drive rotor for this transmission, which offset two axially parallel to the rotor axis 21 lying gear shafts 41 with one another alternately engaging gear wheels and in one of the Fluid guide 13 separate, dry gear chamber on the away from the control chamber 14 or the fluid nozzles 18, 19 Side of the axes 21, 22 lies.
  • the valve 33 also serves as a reversing valve of the reversing control 9, by switching from a fluid nozzle 18, 19 to the others the direction of rotation of the control rotor 20, the transmission and the drive pinion 42 is reversed in the opposite direction, so that the sprinkler head 5 changes its direction of rotation.
  • control rotor 20 At the higher speed of the control rotor 20 arises a stronger swirling of the water flow in the control chamber 17 than at the lower speed, so that once Spray jet and the other time a pricking jet is generated.
  • the adjustment can be provided so that it continues remote irrigation field about the same or smaller Area size as the closer irrigation field has.

Claims (10)

  1. Arroseur, notamment pour l' arrosage de la végétation, pour l' envoi au moins d' un jet de fluide sur une trajectoire de jet libre, définissant une ampleur de jet moyenne, à un champ d' irrigation, avec au moins une tête d' arroseur (2) présentant un corps de base, laquelle présente entre un accés de fluide (12) pour la réception du fluide sous une pression d' amenée, ainsi que d' un débit spécifique par unité de temps et une sortie de fluide (11) située au début de la trajectoire de jet libre, un guidage de fluide (13) déterminant au moins un sens d' écoulement avec des parcours de fluide pour l' écoulement de fluide, ainsi qu' avec de moyens de commande prévus pour la modification de l' ampleur de jet moyenne en différentes ampleurs de jet, qui comprennent au moins un moyen de commande (10), lequel présente un élément fonctionnel de renversement (34) modifiant l' écoulement de fluide en au moins un domaine d' activité, et avec des moyens d' entraí nement (3) pour rendre possible un mouvement transversal de va-et-vient du jet de fluide, caractérisé en ce que le moyen de commande (10) commute entre les différentes ampleurs de jet en dépendance des changements du mouvement transversal, par le fait que l' élément fonctionnel de commutation (34) détourne l' écoulement de fluide avant la sortie de fluide (11) sur un autre parcours de fluide.
  2. Arroseur d' après la revendication 1, caractérisé en ce que le moyen de commande (10) au moins au nombre de un commute l' écoulement de fluide avant la sortie de fluide (11) automatiquement entre au moins deux ampleurs de jet, en ce que le moyen de commande (10) commute en service continu essentiellement sans interruptions du jet de fluide entre au moins deux ampleurs de jet en va-et-vient, et en ce que le moyen de commande (10) commute auprès de l' accès de fluide (12) entre des ampleurs de jet différentes par modifications du courant de fluide dégagé par la même ouverture de sortie (11) de la sortie en substance indépendamment du volume de fluide ejecté de la sortie de fluide (11)par unité de temps ou encore en substance indépendamment de la pression d' amenée.
  3. Arroseur d' après la revendication 1 ou 2, caractérisé en ce que le moyen de commande (10) est réalisé pour la modification du comportement d' écoulement de fluide, ainsi que pour la perturbation d' écoulement ou encore pour la tranquilisation d' écoulement à l'intérieur du conduit de fluide (13), pour le renversement du sens d' écoulement à l' intérieur du conduit de fluide (13) et/ou pour la modification d' un mouvement rotationnel d' écoulement, en ce que notamment le moyen de commande (10) agit dans le domaine d' une chambre (17), qui présente une ampleur supérieure par rapport à des voies de fluide (15, 16 ou encore 26) d' amenée et/ou de sortie, et en ce que de préférence du domaine d' activité du moyen de commande (10) un canal terminal (26) essentiellement rectiligne conduit directement à la sortie de fluide (11) ou encore à l' accés (29) d' une buse de sortie (28).
  4. Arroseur d' après une des revendications précédentes, caractérisé en ce que un canal terminal (26) conduisant à la sortie de fluide (11) peut être afflué à une entrée de fluide (25) par différentes directions d' incidence et qu' il présente pendant l' amenée de fluide dans les différentes directions d' attaque des différentes commandes d' écoulement, notamment en substance pour un écoulement longitudinal tranquilisé et/ou pour un écoulement tourbillonaire ou encore en ce que le canal terminal (26) présente au moins dans le domaine de l' accés (25) et dans une section transversale orthogonale à travers l' accès (25) une section transversale à peu près ovale, différent d' une section transversale ronde et en ce que de préférence à l' accés (25) on prévoit contre une direction d' attaque une délimitation transversale (32) et par rapport à un' autre direction d' attaque une délimitation parallèle (27) approximativement.
  5. Arroseur d' après une des revendications précédentes, caractérisé en ce que pour la commutation à un' ampleur de jet plus courte il est prévu dans le conduit de fluide (13) au moins un élément perturbateur d' écoulement (27), en ce que notamment un élément perturbateur d' écoulement (27) forme une réduction de section par rapport à un secteur de canal (26) faisant suite en direction d' écoulement et en ce que de préférence un accès de canal (25) situé en coupe axiale sous un angle aigu par rapport à l' axe d' un secteur de canal (26), est délimité d' un côté par une saillie (27) située à peu près dans son plan, laquelle saillie saille du coté correspondant de la paroi de canal transversalement contre le côté opposé ou encore laquelle se trouve sur un côté longitudinal de l' accès (25) oblong transversalement par rapport à la direction d' incidence, et/ou en ce que les moyens de commande sont réalisés pour un arrosage consécutif ou encore s' ensuivant de manière individuelle en substance d' un même champ d' irrigation avec au moins deux formes de jet.
  6. Arroseur d' après une des revendications précédentes, caractérisé en ce que le moyen de commande (10) présente un distributeur multivoie (33) avec sorties de soupape (18, 19) orientées de manière différente ou encore présentant des différents écarts de la sortie (11), en ce que le moyen de commande (10) présente un curseur (20) commutable, et en ce que de préférence un curseur de rotor (20) entraíné par fluide peut être entraíné au moyen de buses d' entraí nement (18, 19) individuelles dans des directions opposées, et/ou en ce que les moyens d' entraí nement (3) sont prévus pour un mouvement intermittent ou encore de va-et-vient de la tête d' asperseur (2).
  7. Arroseur d' après une des revendications précédentes, caractérisé en ce que le conduit de fluide (13) présente au moins deux secteurs de canal (15, 16) branchés en parallèle et des moyens de barrage (33) pour la réduction alternante du flux de matière à travers au moins un secteur de canal (15, 16) ainsi qu' une augmentation du flux de matière à travers au moins un autre secteur de canal (15, 16), en ce que notamment un premier secteur de canal (15) débouche dans une buse directe (18) orientée à peu près vers l'accès (25) d' un canal de raccordement (26) et un deuxième secteur de canal (16) débouche dans une buse à détour (19) orientée à peu près à l' opposé de cet accès (25) et/ou au moins contre une surface de guidage, et en ce que de préférence la buse directe (18) est orientée de manière à conduire le fluide le long d' une saillie (27) jusqu' à l' extrémité de saillie de celle-ci ou encore que la surface de guidage en forme d' enveloppe conduit le fluide sortant de la buse à détour (19) en un arc à peu près contre l' extrémité libre de la saillie (27) et/ou en ce qu' au moins une des buses pour fluide (18, 19) est orientée à peu près parallèlement au plan de l' accès (25).
  8. Arroseur d' après une des revendications précédentes, caractérisé en ce qu' un rotor de commande (20) commutant par son sens de mouvement entre des différentes ampleurs de jet, se trouve directement à proximité de l' accès (25) d' un secteur de canal (26) qui s' ensuit en direction d' écoulement et/ou recouvre au moins partiellement cet accès (25), en ce que notamment le rotor de commande (20) forme avec une enveloppe de chambre d' une chambre (17) un espace annulaire asymétrique, lequel est délimité par des surfaces de guidage de l' enveloppe intérieures et extérieures et en ce que de préférence au moins une buse pour fluide (18, 19) s' étend avec un' extrémité en substance directement jusqu' à une paroi frontale (24) d' une chambre (17) traversée par l' accès (25) ou encore qu' elle est raccordée à l' accès (25) au moyen d' un secteur de conduite de fluide (13), secteur étroitement délimité à l' intérieur de la chambre, telle qu' une chambre de tranquilisation, entre des surfaces de guidage (23) ainsi que s' étendant à peu près jusqu' à l' accès (25).
  9. Arroseur d' après une des revendications précédentes, caractérisé en ce que la tête d' arroseur (2) peut être entraínée par un entraínement rotatif ou encore à renversement (3), en ce que notamment l' entraínement rotatif (3) présente des éléments fonctionnels d'entraínement, tel que dans une chambre de turbine (17), dans une chambre de commande (14) ou similaires de la conduite de fluide (13) un rotor de turbine (20), au moins une buse pour fluide d' entraí nement (18, 19), une soupape de commutation (33), un élément de perturbation d' écoulement (27) commutable et/ou des éléments de guidage d' écoulement (23) et en ce que de préférence au moins un des éléments fonctionnels d'entraínement forme l' élément fonctionnel de commutation du moyen de commande (10).
  10. Arroseur d' après une des revendications précédentes, caractérisé en ce que le moyen de commande (10) est réalisé pour la commutation entre au moins deux formes de jet différentes, en ce que notamment une forme de jet constitue un jet perçant de fluide essentiellement en faisceau ou encore au moins une forme de jet constitue un jet nébulisé, et en ce que de préférence la sortie de fluide (11) est formée par l' extrémité élargie en forme d' entonnoir d' un canal de buse (30) à parois lisses, lequel est prévu à l' extrémité d' un canal terminal (26) présentant au moins une resserrement graduel, et/ou en ce que pour au moins deux formes de jet différentes n' est prévue qu' une seule ouverture de sortie de fluide (11).
EP94113286A 1993-09-02 1994-08-25 Arroseur, notamment pour l'irrigation de la végétation Expired - Lifetime EP0641603B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4329616A DE4329616A1 (de) 1993-09-02 1993-09-02 Regner, insbesondere zur Vegetations-Bewässerung
DE4329616 1993-09-02

Publications (2)

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EP0641603A1 EP0641603A1 (fr) 1995-03-08
EP0641603B1 true EP0641603B1 (fr) 2001-11-07

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EP94113286A Expired - Lifetime EP0641603B1 (fr) 1993-09-02 1994-08-25 Arroseur, notamment pour l'irrigation de la végétation

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US (1) US5611488A (fr)
EP (1) EP0641603B1 (fr)
AT (1) ATE208236T1 (fr)
AU (1) AU686640B2 (fr)
DE (2) DE4329616A1 (fr)
ES (1) ES2167342T3 (fr)
ZA (1) ZA946152B (fr)

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CN103480517B (zh) * 2013-09-22 2016-07-20 江苏大学 一种椭圆形喷洒域喷头压力调节装置

Also Published As

Publication number Publication date
EP0641603A1 (fr) 1995-03-08
ZA946152B (en) 1995-03-22
AU7140994A (en) 1995-03-16
ATE208236T1 (de) 2001-11-15
DE4329616A1 (de) 1995-03-09
ES2167342T3 (es) 2002-05-16
US5611488A (en) 1997-03-18
DE59409937D1 (de) 2001-12-13
AU686640B2 (en) 1998-02-12

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