EP0826426B1 - Arroseur - Google Patents

Arroseur Download PDF

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Publication number
EP0826426B1
EP0826426B1 EP97114333A EP97114333A EP0826426B1 EP 0826426 B1 EP0826426 B1 EP 0826426B1 EP 97114333 A EP97114333 A EP 97114333A EP 97114333 A EP97114333 A EP 97114333A EP 0826426 B1 EP0826426 B1 EP 0826426B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
sprinkler
axis
sprinkler according
head
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
Application number
EP97114333A
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German (de)
English (en)
Other versions
EP0826426A2 (fr
EP0826426A3 (fr
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.)
Gardena Manufacturing GmbH
Original Assignee
Gardena Manufacturing 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 Gardena Manufacturing GmbH filed Critical Gardena Manufacturing GmbH
Publication of EP0826426A2 publication Critical patent/EP0826426A2/fr
Publication of EP0826426A3 publication Critical patent/EP0826426A3/fr
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Publication of EP0826426B1 publication Critical patent/EP0826426B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/70—Arrangements for moving spray heads automatically to or from the working position
    • B05B15/72—Arrangements for moving spray heads automatically to or from the working position using hydraulic or pneumatic means
    • B05B15/74—Arrangements for moving spray heads automatically to or from the working position using hydraulic or pneumatic means driven by the discharged fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • 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
    • B05B3/0486—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 the spray jet being generated by a rotary deflector rotated by liquid discharged onto it in a direction substantially parallel its rotation axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like

Definitions

  • the invention relates to a sprinkler according to the preamble of Claim 1.
  • a fluid such as water e.g. on a Vegetation area or the like. Can be applied as a beam.
  • To Detachment from the sprinkler at the fluid outlet passes the jet under the Fluid pressure bundled or sprayed in a free path to the vegetation area. It rises or falls from the sprinkler area to be irrigated.
  • the sprinkler can with a sprinkler base be anchored upright on the ground. Then it's on its upper end provided fluid outlet at a distance above of anchoring.
  • the sprinkler base has a supply connection for releasably coupling a fluid line, such as one Water hose on. The liquid becomes pressurized through it Channeling fed to the inside of the sprinkler from connection leads to the outlet.
  • the outlet is opposite the base rotatable, and in its movement by the flowing Water powered. So with the water emerging from it irrigate a larger area than would be the case if the Outlet would be still.
  • the outlet can have a variety of radially directed outlets at a constant in rotor rotating in the same direction as a turbine rotor be that the water in a total sector over 360 ° about the axis of rotation or in contrast, smaller subsectors are held.
  • the discharge can take place close to the sprinkler itself, so that the same Water jet radially to the sprinkler over a relatively large distance area to be irrigated.
  • This radial expansion or the smallest distance from the irrigated area the sprinkler depends on the cross-section of the jet of water Has fluid outlet or upstream thereof within the sprinkler.
  • expedient is one in the above training within the sprinkler Nozzle arrangement provided.
  • the water emerges from it as a jet in such a way that this passes over a free path against a guide surface, which it the Fluid outlet supplies. This can be formed by the outlet end of the guide surface his.
  • the nozzle arrangement points around the axis with the same radial distances distributes several neighboring nozzle units. You set up one each separate jet against separate areas of the guide body and therefore only supply the associated, constant sub-sector of Vegetation area with water. By closing the associated nozzle unit the associated subsector can be excluded from the irrigation.
  • the single nozzle unit can be formed by a single or several jet nozzles his.
  • the outgoing from the nozzle unit or on the guide surface impinging jet cross sections also determine the jet shape at the fluid outlet. Is the nozzle unit by a single, seen in the flow direction partial or circular opening is formed, this results in a narrowly focused beam, which is discharged over a large distance from the fluid outlet and the area of the Vegetation area not irrigated.
  • the nozzle channel is designed in axial section either to the nozzle axis parallel flanks or at least one flank approaches in the direction of flow the nozzle axis.
  • US 4,967,961 shows a sprinkler according to the preamble of claim 1 with different embodiments of sprinkler nozzles. Some of these are designed as circular ring sectors according to Art a circumferential, consistently wide slot. This slot is interrupted by narrow bridges and divided into sectors. At a further execution are two extended areas between each extended end areas available again. So the scope of the generated beam can be influenced.
  • US 5,288,022 shows a sprinkler with a nozzle unit which is different can have trained sprinkler nozzles.
  • An execution is roughly rounded semicircular, is an education exactly quarter-circular and a third training consists of two straight, running through the center of a jet nozzle disc Slots.
  • the invention has for its object one of the above To create sprinklers at which disadvantages of known training or of the type described are avoided and in particular the Generation of a fluid jet enables the irrigation of the Near field of the sprinkler is suitable or is carried out less far than the described, far-reaching water jet.
  • Upstream of the fluid outlet are means provided to be generated by the single nozzle unit To influence beam cross-section so that it is one of the circular shape has a different shape and in this different Form may hit the guide surface.
  • the nozzle channel advantageously has Axial section on at least one nonlinear channel flank that extends especially in the direction of flow from the nozzle axis.
  • Jet nozzle provided, which is not circular in axial view, but elongated limited, namely is lenticular.
  • the nozzle has narrower sides Areas and in between an expanded area so that the beam cross sections are generated.
  • the jet nozzle also forms contiguous areas different flow velocity of the water that in. Axial view side by side. In the area of the narrow sides of the Nozzle unit, the flow rate is higher than neighboring in addition in the extended nozzle area.
  • Each guide surface is useful through a recess, such as a groove formed, along the bottom and flank surfaces of the water in one radially outwardly curved path is guided.
  • the bigger one Expansion of the nozzle unit is expediently greater than that in the same Direction to be measured width of the recess and smaller than its smallest depth so that the jet emerging from the nozzle unit is not only in the recess, but also on the protrusions, which delimit the depression on both sides with their flanks or each lie between two adjacent depressions.
  • the respective The head surface could therefore have a projection over the Bottom surface of the recess offset against the direction of flow Form guide surface for the water so that this when leaving the Fluid outlet even further, namely fanned out across the irrigation surface is.
  • the guide surfaces are advantageous on one in Flow direction extended body provided which the rotor forms. This can be used as a turbine runner without the interposition of a Transmission only from the water jets leaving the nozzle units, just be hydraulic, driven, like this that there is a very simple training of the sprinkler.
  • the nozzle units are encircled by a ring a support or bearing body for the guide or rotor body arranged so that the individual nozzle unit immediately may be adjacent to the hub of the rotor.
  • the respective Nozzle opening can be sunk so that in the direction of flow connect leading edges to each other, which the jet after leaving the nozzle opening stabilize in shape before leaving the flanks and for the most part non-contact in the open Guiding surface arrives.
  • the two flanks are on the broad sides the nozzle unit and can through a V-shaped groove be educated.
  • Even the continuous or one-piece, as Tear-off edge for the jet opening can, like the associated connection of the leading edge, have axially offset sections. In particular are the sections forming the narrow sides of the nozzle unit opposite the sections forming the broad sides set back because the narrow sides on the pointed groove bottom of the the groove forming the leading flanks lie.
  • the nozzle unit forms the end of one in the direction of flow extending nozzle channel, one up to the jet nozzle has narrowed channel end portion.
  • the nozzle unit or the entire nozzle arrangement opposite the sprinkler base is manually rotatable relative to the guide surfaces and the fluid outlet.
  • the nozzle arrangement is expediently provided on a nozzle head, which in operation forms the upper end of the sprinkler base into which the protrude lower ends of the guide surfaces and its outer circumference forms a handle to the nozzle assembly in different To transfer positions.
  • One in front of the nozzle head itself Moving or rotating actuator or valve body closes or opens any of the nozzle units for itself depending on the position.
  • This valve or control body advantageously covers inlet ends of Nozzle channels, the other, downstream ends of each form a single nozzle unit or its nozzle opening and from Go through the control body in one piece.
  • the upper end of the channeling 6 is through a variety of at least eight or ten outlets 7 formed on one of the top end of the sprinkler 1 forming head 8 at the same height are provided and have the same distances from each other.
  • To the Outlets 7 detaches the water from the top Sprinkler 1 completely or contact-free and passes through a parabolic trajectory up to the irrigation surface of the Vegetation site.
  • the head 8 and the outlets 7 will all water without bypassing through the top of the unit 4 forming nozzle head 9 supplied, like the sprinkler 1 or the Units 2 to 4, 7 and 8 in a central axis 10 or symmetrical to this lies.
  • the same outlets 7 are with the same radial as well Circumferential distances distributed around the axis 10.
  • the jointly delimited outlets 7 are each by downstream end of a separate guide surface 11 or Indentation or groove formed, the width constant over its length, different depth and according to FIG. 1 an angled or has a curved course such that the recoil effect from the Outlets 7 escaping water head 8 immediately in quick Rotation offset about the axis 10.
  • All guide surfaces 11 are the same and compared to a radial arrangement also in the area of its radially inner one Ends slightly in the direction of flow against the direction of rotation inclined, like the axial view parallel to the axis 10 according to FIG. 2 can be seen.
  • Each guide surface 11 has an axial section in FIG Direction of flow rising obliquely or continuously concave curved bottom surface 12 and then two lateral, flank surfaces 13 parallel to one another and to axis 10, which by projections 14 lying between adjacent guide surfaces 11 are formed.
  • all the projections 14 form one lower, at most rectangular or acute-angled conical outer circumference widened upwards, which is connected to a cylindrical Connects scope, which penetrates from the outlets 7 is because this is through the downstream ends the guide surfaces 11 are formed.
  • the grooves 11 guide it Water so that it from an entry direction parallel to axis 10 progressively radially outwards to the Outlets 7 is deflected and then at these and possibly in Area of the conical circumference emerges, since here the respective Groove 11 has its smallest depth and the groove longitudinal openings this conical circumference between adjacent projections 14 enforce while the end opening of the groove 11 the cylindrical Extent enforced.
  • the opposite of the groove width consistently greater depth of the groove 11 takes over its whole Length to the outlet 7.
  • the head 8 is penetrated by a bearing body 15 which constant over its entire length with a straight round rod Outside cross sections formed and on which the head 8 is rotatably mounted with a central hub 17.
  • Adjacent to the outer circumference of the lower, freely projecting end of the Hub 17 is the axial inlets 16 of the guide surfaces 11th such that this cylindrical outer circumference continuously in the curved surfaces 12 merges and counter to the flow direction down over the inlets 16 and the protrusions 14 or the conical outer circumference protrudes.
  • This lower one End of the hub 17 formed in one piece with the head 8 extends almost to the top of a sleeve-shaped Nozzle body 18, in which the hub 17 is also sunk closely can intervene and also from axis 15 is enforced.
  • the axis 15 projects down into one hub-shaped axle bracket 19, in which it with its lower end opposite the unit 4 fixed is.
  • the bodies 9, 18 formed in one piece with one another are rotatable on the axis 15, but not axially displaceable.
  • the body 18 forms at its upper end as well as sunk within the head 9 only axially against the inlets 16 and not directed against the longitudinal openings of the grooves 11
  • Nozzle arrangement 20 evenly distributed around the axis 10
  • the units 21 are in one common plane perpendicular to axis 10 and in one the inlets 16 also lie in such a plane or end face at a distance from the upper end face of the body 18 opposite, which is less than the groove depth at the inlets 16 is.
  • Each unit 21 has a single jet nozzle 22 or nozzle opening 23 on that according to FIGS. 4 and 5 in such a lenticular manner is that they are two opposite and pointed narrow sides 24 and two extended towards each other opposite broad sides at right angles to each other 25 forms by two equal, opposite one another concave boundaries of the nozzle opening 23 are formed.
  • This Limits or the broad sides 25 lie in a common one Level 36, which is an axial plane of axis 10.
  • the Narrow sides 24 lie in a plane 37 perpendicular thereto.
  • the smaller width of the nozzle opening 23 is parallel to the Level 36 and can be at most or at least half or a third smaller than that parallel to plane 37 greatest distance.
  • the concave Limits 25 sharply over each other. All Openings 23 have the same average radial distances from the Axis 10.
  • the openings 23 passing through the body 18 lie radially slightly outside the outer circumference of the lower hub end 17 and radially completely within the radially outer Limits of the inlets 16 as well as sunk within the End wall of the body 18.
  • Each opening 23 connects to one or two opposing baffles or planes Flanks 26, 27, each on one side of level 37 opposite each other like the limits 25 symmetrically and at an acute angle are inclined outwards as they pass through an acute-angled V-shaped groove is formed with open groove ends are. Push through these widened grooves in the direction of flow the upper end face of the body 18 so that the water from here without contact to the inlets 16 flows and only on the outer circumference of the lower hub end 17 need to have contact with the sprinkler 1.
  • Adjacent beams of adjacent units 21 mix however, before reaching the inlets 16 and up to the openings 7 not or only insignificantly.
  • each opening 23 or each guide device 26, 27 is through the downstream end of a nozzle channel 28 formed, the several axially adjoining Has sections of different cross-sections, lies entirely within body 18 and like that Surfaces 26, 27 is limited in one part by this.
  • adjusting means 30 are provided, with which any number of channels 28 or openings 23rd can be opened or locked so that the water them flows through or not.
  • the opening 23 is through the end of a in the flow direction acute-angled, possibly narrowed to right or obtuse angles
  • Section 29 of the channel 28 is formed.
  • This end section 29 has one at its upstream end centric-symmetrical or circular cross-section on, from which he steadily and reducing his passage cross-section changes into the shape of the opening 23 so that there is a strong acceleration of flow here.
  • To the Inlet of section 29 includes an equal further and axially aligned, cylindrical section 31 of greater length than section 29. At the entrance there closes again widened, sector-shaped curved around the axis 10 Section, which has a separate inlet or control chamber 32 to 35 each form for the associated channel 28.
  • Sections 32 to 35 have different radial dimensions such that the radial expansion in a direction about the axis 10 from the smallest section 32 to the largest section 35 increases gradually; this also applies to the radial distances the radially outer boundaries of sections 32 to 35, whose radially inner boundaries have equal radial distances from have the axis 10 and the like the chambers 32 to 35 around the Take axis 10 at the same arc angle. Sections 32 to 35 are symmetrical to the associated levels 36. Your Inlets are in the lower, upstream as well flat face and end surface of the body 18.
  • Each nozzle unit 21 to 28 is on a separate projection 38 of the body 18 is provided and penetrates it Projection formed by an annular end wall 39 in Flow direction and protrudes radially according to FIG. 4, so that the outlet end of the body 18 as shown in FIG. 1 cross or is star-shaped and one star arm each has a projection 38 forms.
  • the end wall 39 is spaced between the ends of the body 18, integrally connects to its outer circumference and is even over most of its size, being in the area of a chamber 34 also in the manner of a cone sector can be inclined.
  • the body 18 is manually movable or with a bearing 40 rotatably mounted opposite and directly on the unit 4, to adjust the actuator 30.
  • the body 18 forms a one-piece unit with one Bearing body or shell 41, which the upper end or in associated axial area the exposed outer circumference of the Unit 4 forms and in which completely sunk as well body 18 lies continuously with radial distance. This closes directly to the inside via connection 39 of the jacket 41.
  • Radially immediately inside the channels 28 The body 18 forms a hub 42 with which the body 9, 18, 41 are rotatably mounted on the axis 15 and with the outer circumference of the chambers 32 to 35 in the radially inner Area limited.
  • the exposed outer circumference of unit 4 is in operation along most of its length from a tubular Channel body 43 has formed over most of it Length constant cross sections and forms one as the upper end in the outer circumference of the bearing neck 44 of the bearing 40. Das End 44 is spaced below the lower end of the Body 18 of the projecting down over this end Cover 41 rotatably gripped.
  • the outer circumference of the jacket 41 forms a continuous continuation of approach 44 subsequent outer circumference of the channel body 43.
  • the unit 9, 18, 41 can pass through the head 8 and a shoulder of the body 43 axially secured in both opposite directions his.
  • This unit 9, 18, 41 is in the respective rotational position with a detent or snap lock 45 against the Unit 2 to 4 to fix, with this fuse 45th can form an axial lock. It points you over the Outer circumference of the shoulder 44 protruding snap cams, the in locking openings or openings in the shell 40 so resiliently engages that the locking force by manual turning of the nozzle head 9 can be overcome.
  • the associated one Handle 48 is by the outer circumference of the shell 41 of the Head 9 formed.
  • Nozzle units 21 there are as many rest positions as Nozzle units 21 are provided, namely four, so that the head 9 from one position to the next by 90 ° and with the sprinkler 1 optionally around the axis 10 a sector of 360 °, one irrigated by 270 °, one by 180 ° and one by 90 ° can be.
  • the sector to be irrigated is therefore one integer multiple of the smallest sector.
  • a control valve 46 is provided by the adjusting means 30, with which the passage cross sections of the channel paths 6 are infinitely variable can be changed or blocked entirely.
  • the valve 46 has a completely sunk radially to the axis 10 within of the body 43 lying valve body 47, which in Operating position from the outside of the unit 4 adjacent is freely accessible to the lower end of the head 9 and in the 1 sunk within the unit 3rd lies.
  • the valve 46 is integral with the body 43 formed valve housing in which the valve part 47 rotatable about the transverse axis and by one with both Valve parts one-piece snap lock axially is used securely.
  • the valve body 47 is like that Handle 48 in the extended operating position on the outer circumference of body 43 for immediate manual actuation accessible, but in the retracted position according to FIG. 1 completely sunk in unit 3.
  • the control means 30 have a one-piece control body 50 on, which is penetrated by the axis 15 in a hub 49 and compared to this when adjusting the device 30 is certain, since it is secured against movement or Turning secured engages in the unit 4 or the body 43.
  • the control body 50 has the same distribution as explained on the basis of the channel sections 32 to 35, control sections 52 to 55, one of which is one to the hub 49 free sector 52 forms, while the rest of the hub 49 starting cams 53 to 55 with different levels Form radial extension. Transfer the position of the control body 50 according to FIG.
  • each cam 53 to 55 is an annular sector Passage cross section or an opening as a connection to the associated chamber 33 to 35 to the inflowing water free remains and the chamber 32 is connected.
  • the control body 50 by one switching step rotated to the right, the cam 55 closes the chamber 32 completely, while the passage cross sections to the rest Chambers 33 to 35 are expanded accordingly radially because now the sector 52 completely releases the chamber 33 and the cams 53, 54 cover the chambers 34, 35 less. This also takes place when switching to the next switching step, the chambers 32, 33 then being completely closed are etc.
  • the control body 50 belongs to the position securing device 51 Securing member 56, in particular one or more tooth-like over the outer circumference of the hub 59 or the lower End face of at least one cam 54 protruding locking cams on, the positive locking in one Intervene counter member 57.
  • This link 57 is at the top of the body 43 or the neck 42 in the manner of a Axis 10 continuous end teeth provided so that the Body 50 almost infinitely variable in any rotational position can be connected to the unit 4.
  • After axial loosening or pulling off the head 9 can also the control body, 50th axially released or withdrawn and in a changed rotational position axially reinstalled in the position securing 51 become.
  • the hub 49 is only above that of the channels 48 opposite side of the cams 53 to 55, so that the upper End face of the body 50 or all cams 53 to 55 in is on a common level and is dense or under pressure abuts the associated end face of the control body 18.
  • the pressing is arranged around the axis 15 Spring member, such as a sealing ring.
  • an annular piston 58 solely through radial expansion and subsequent springback Snap into a circumferential groove of the body 43, that on a cylinder surface inside the unit 3 running.
  • the outer periphery of the unit 4 is from a spring 59 surrounded, which on the end faces of the piston 58 and in the upper Area of the unit 3 is supported so that the compression spring 59 the unit 4 is always loaded downwards.
  • the unit 3 has one piece with the radially projecting one Stub 5 formed tubular housing body 60 on, which forms the track for the piston 58 and on the upper end of which a cover 61 with the interposition of one Seal 62 is releasably attached by screwing.
  • the between the lid 61 and the upper end of the body 60 Annularly clamped ring-shaped seal. 62 lies in each Position close to the outer periphery of the unit 4, namely the Head 9 and the body 43 and serves to support the top of the spring 59.
  • the head 8 to to an end flange 63 completely within the unit 3 or the lid 61.
  • By contacting the flange 63 on the upper end face of the lid 61 is the unit 4 in the retracted position limited.
  • the lower, conical end of the Head 8 protrudes into the upper end of the jacket 41 as far as that the inlets 16 are in this end, in which the Water as described directly from the openings 23 occurs. Only this lower end of the head 8 forms through the blade-like projections 14 one from the water then driven turbine rotor 64, in which the water in the essentially only within the grooves 11 to the outlets 7 is directed. Although several rotors are conceivable, it is only a single rotor 64 or no rotor is provided, which via an intermediate gear, a clutch or the like driven and rotatable relative to the other rotor. Just starting the outlets 7 the water is then discharged without contact, that it is from close to the device 1 to one relatively large distance on the irrigation area incident.

Landscapes

  • Nozzles (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Dry Shavers And Clippers (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Lubricants (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (11)

  1. Arroseur, notamment pour arroser des tapis végétaux, avec une embase stationnaire (2), un raccord d'alimentation (5), une tête de sortie (7, 8) tournant en service autour d'un axe (10), plusieurs surfaces de guidage (11) et avec au moins un canal d'écoulement (6) qui mène du raccord d'alimentation (5) aux buses de sortie (21, 22) ayant une section transversale non circulaire, placées dans le sens d'écoulement en amont des surfaces de guidage (11) et formant chacune l'extrémité d'un canal (28) qui possède une section terminale rétrécie (29) présentant l'orifice de buse (23),
    caractérisé en ce que les buses de sortie (21, 22) sont placées sur un rayon commun autour de l'axe (10) de la tête de sortie (8) et que leur orifice de buse (23) est formé de manière lenticulaire par des flancs (26, 27) aval non parallèles à l'axe, les deux extrémités étroites (24) de chaque orifice (23) étant situées dans un plan axial (37) qui s'étend perpendiculairement à un rayon traversant l'axe (10).
  2. Arroseur selon la revendication 1, caractérisé en ce qu'aux canaux (28) des différentes buses de sortie (21) sont affectés des orifices d'entrée (32 à 35) de différentes tailles, qui peuvent être ouverts ou fermés avec un corps de commande (50) qui peut être pivoté par rapport aux orifices d'entrée (32 à 35).
  3. Arroseur selon la revendication 1, caractérisé en ce que la buse de sortie (21, 22) comprend une saillie de buse (38) traversée par le canal de buse (28) et qui, en vue axiale, fait librement saillie dans le sens radial par rapport à l'axe central (10) situé à une certaine distance de l'axe de buse, que la surface de guidage (11 ) est prévue sur un rotor (64) mobile par entraínement et distinct du canal de buse (28), et s'étend en aval au-delà de la sortie de buse.
  4. Arroseur selon les revendications 2 et 3, caractérisé en ce qu'une tête de buse (9) comprenant les buses de sortie (21, 22) et réglable par rapport à l'embase (4) de l'arroseur est logée, avec un manchon (42) en forme de barre s'étendant dans le sens axial, directement sur un palier (15) en forme de barre pour permettre un logement pivotant du rotor (64).
  5. Arroseur selon l'une des revendications précédentes, caractérisé en ce que les buses de sortie (21, 22) sont assurées dans le sens axial par une sûreté (45) qui traverse dans le sens radial une enveloppe (41).
  6. Arroseur selon les revendications 4 et 5, caractérisé en ce que la sûreté est un assemblage à encliquetage (45), et est située à une certaine distance entre les extrémités de la tête de buses (9).
  7. Arroseur selon la revendication 2, caractérisé en ce que le corps de commande (50) est mobile grâce à des moyens de commande (30, 46).
  8. Arroseur selon la revendication 7, caractérisé en ce que les moyens de commande (30, 46) présentent des corps de commande (50, 47) pivotant par rapport à l'unité de buses (21) et que la tête de buse (9) est fixée de manière pivotable manuellement à l'extrémité supérieure de l'embase (2) de l'arroseur.
  9. Arroseur selon la revendication 2, caractérisé en ce que le corps de commande (50) est fixé avec une sûreté (51) et, par rapport à cette dernière, peut être amené sans destruction dans différentes positions initiales, et peut être fixé dans chaque position initiale.
  10. Arroseur selon les revendications 9 et 3, caractérisé en ce que l'élément de commande (50) est logé de manière pivotante sur un palier (15) fixé de manière rigide à l'embase (2) de l'arroseur, et qu'à l'extrémité supérieure du palier (15) formé par une barre ronde est logé de manière pivotante le rotor (64) conçu comme turbine.
  11. Arroseur selon l'une des revendications précédentes, caractérisé en ce que l'embase (2) de l'arroseur présente deux unités d'embase (3, 4) mobiles l'une par rapport à l'autre, dont l'une (4) porte l'arrangement de buses (20) et l'autre (3) le raccord d'alimentation (5), en ce qu'une vanne (46) pour la commande manuelle est accessible sur le pourtour extérieur de l'embase (2) de l'arroseur et entre leurs extrémités, et que les unités d'embase (3, 4) peuvent être déplacées l'une par rapport à l'autre par une commande hydraulique (58).
EP97114333A 1996-08-24 1997-08-20 Arroseur Expired - Lifetime EP0826426B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19634332A DE19634332A1 (de) 1996-08-24 1996-08-24 Beregnungs-Vorrichtung
DE19634332 1996-08-24

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EP0826426A2 EP0826426A2 (fr) 1998-03-04
EP0826426A3 EP0826426A3 (fr) 1998-11-18
EP0826426B1 true EP0826426B1 (fr) 2004-05-19

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US (1) US5845849A (fr)
EP (1) EP0826426B1 (fr)
AT (1) ATE267051T1 (fr)
AU (1) AU730171B2 (fr)
CA (1) CA2213607A1 (fr)
DE (2) DE19634332A1 (fr)

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Also Published As

Publication number Publication date
DE59711635D1 (de) 2004-06-24
AU3521797A (en) 1998-03-05
EP0826426A2 (fr) 1998-03-04
EP0826426A3 (fr) 1998-11-18
DE19634332A1 (de) 1998-02-26
AU730171B2 (en) 2001-03-01
CA2213607A1 (fr) 1998-02-24
US5845849A (en) 1998-12-08
ATE267051T1 (de) 2004-06-15

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