EP0497255A2 - Buse de débit pour milieux - Google Patents

Buse de débit pour milieux Download PDF

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Publication number
EP0497255A2
EP0497255A2 EP92101302A EP92101302A EP0497255A2 EP 0497255 A2 EP0497255 A2 EP 0497255A2 EP 92101302 A EP92101302 A EP 92101302A EP 92101302 A EP92101302 A EP 92101302A EP 0497255 A2 EP0497255 A2 EP 0497255A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
chamber
section
media
essentially
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
EP92101302A
Other languages
German (de)
English (en)
Other versions
EP0497255A3 (en
EP0497255B1 (fr
Inventor
Fritz Zuckschwerdt
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.)
Aptar Radolfzell GmbH
Original Assignee
Erich Pfeiffer GmbH
Ing Erich Pfeiffer 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 Erich Pfeiffer GmbH, Ing Erich Pfeiffer GmbH filed Critical Erich Pfeiffer GmbH
Publication of EP0497255A2 publication Critical patent/EP0497255A2/fr
Publication of EP0497255A3 publication Critical patent/EP0497255A3/de
Application granted granted Critical
Publication of EP0497255B1 publication Critical patent/EP0497255B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge
    • 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
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3436—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a plane perpendicular to the outlet axis

Definitions

  • the invention relates to a discharge nozzle, in particular for flowable, atomizable media, such as those e.g. are formed by aqueous, oily or similar liquids, but also by other substances.
  • the discharge nozzle arrangement or unit is intended to be particularly suitable for discharge devices which are to be actuated for discharge manually either in a pumping movement and / or as in the case of aerosol cans in a valve-opening movement.
  • Such discharge nozzles are usually very small in construction and can have nozzle openings or nozzle channels with a width of less than one or half a millimeter.
  • the invention has for its object to provide a discharge nozzle for media, in which disadvantages of known designs are avoided and which enables a very precisely determinable, homogeneous and / or finest atomization, in particular in a relatively simple manner.
  • the non-optional features of claim 1 are provided.
  • two or more atomizers operating simultaneously or in stages are provided, which operate according to at least one of the atomizer principles which use an impact or rebound atomization, a vortex atomization, a flow atomization under accelerated flow speed, a compressed gas atomization and a tear-off starting from a nozzle opening - or spray cone atomization are defined.
  • each or several of these atomization types can be provided, e.g. a discharge nozzle without the use of impact atomization is also conceivable.
  • At least one impact or rebound atomization is provided, which is expediently effective immediately before the medium exits the nozzle outlet opening leading into the open.
  • a deflection atomization can also be provided in such a way that the fluid flow is subjected to at least one deflection with a deflection angle of the order of magnitude between 100 and 180 ° and thus severe flow distortions before the outlet.
  • the fluid flow can also initially against the main direction of flow of the discharge nozzle and without straight line are immediately diverted in the opposite direction.
  • an impact surface is expediently provided for this purpose, against which a directional nozzle is directed and which forms a rounded guide surface for deflecting the fluid flow.
  • a spray cone media nozzle directed into a swirl chamber can also be provided, which is directed against oblique guide surfaces, at which the fluid flow can be transferred into an annular roller flow surrounding the nozzle axis.
  • a flow disturbance to increase the turbulence effect can be generated by a flow directed transversely to the nozzle or chamber axis, which flows around a projection having the outlet opening of the other nozzle on the sides facing away from one another and on the end face, which also causes tear-off atomization at the edges of the nozzle projection is achieved.
  • a concentrated differential flow between the actual vortex flow in the chamber and the longitudinal flow can be achieved by means of a concentrated strand-like longitudinal flow along a part of the circumference of the chamber, which is essentially independent of the flow conditions in the remaining chamber, and against which no transverse flow is expediently directed .
  • High atomizing forces can be effective in the boundary layer between these two flows.
  • the longitudinal flow can be directed against the chamber exit approximately corresponding to its cross section, so that it takes up atomized medium from the remaining chamber with the support of the cross flow and presses it out through the chamber exit under compression or acceleration or throttling.
  • the chamber cross-section can be substantially constant and / or decrease over at least one or all of the inlets located in the region of a chamber end over a part of the chamber length, it practically being almost constant over a part of its length that extends over half the chamber length or across the crossflow is and then decreases over the remaining, approximately equally long part to the other end of the chamber or to the chamber exit. This results in an annular funnel-shaped narrowing towards the chamber exit.
  • the atomizing effect can also be improved in that a media nozzle, which generates a spray cone, is directed within a chamber against at least one oblique guide surface which is inclined radially outwards or backwards in the spraying direction, approximately from the nozzle axis, so that the spray jet not at right angles, but at an acute angle.
  • This guide surface which expediently extends to the inner circumference of the chamber, can be formed in a simple manner by a conical or pointed-conical ring surface, the average diameter of which corresponds approximately to the largest impact diameter of the spray cone.
  • the tip of this cone which has a cone angle of approximately 90 °, is directed towards the media nozzle at a substantially greater distance from the width of the nozzle opening and can have a distance from the media nozzle which is of the order of half the inside width of the chamber.
  • the cone forms the end wall of the chamber opposite the media nozzle and deviating from the flat shape. This end wall expediently has a smallest distance from the cross flow to be measured in the region of its cone tip, which is approximately as large as the parallel cross-sectional extent of the cross flow or the associated flow inlet.
  • a method is particularly expedient in which liquid medium is initially mixed in without prior addition of air previous swirl influence sprayed axially into the chamber and against the opposite oblique guide surfaces, previously acted upon by an air flow lying transversely to the spray cone when leaving the spray nozzle and then transferred from the main part of the chamber into a longitudinal air flow, from which the atomized medium is passed through a chamber outlet removed and directed twice against the baffle after two deflections, first about 90 and then about 45 °. From this, the medium is discharged directly through the last channel section, which forms the outlet opening of the discharge nozzle leading to the outside.
  • the media flow directed against the impact surface does not lead to an impact on the outer edge of the impact surface to the rear of the impact surface, but rather reflects on the impact surface in the opposite direction and is conveyed further in this direction of reflection.
  • the impact surface therefore forms the bottom of an essentially closed, very flat or lenticular or semi-lenticular chamber, the boundaries of which are open only in the area of at least one entrance and at least one exit.
  • the discharge nozzle can be produced very easily from two nozzle caps to be inserted into a base body, one of which accommodates a core body inside, which forms the baffle surface with one end face and / or the inclined guide surface with the other end face.
  • This nozzle cap can be essentially closed at the rear end with the other nozzle cap, expediently having a smaller outside width, and in such a way that on the one hand entries for the transverse and / or the longitudinal flow remain open and on the other hand the rear end of the chamber enclosed by the front nozzle cap is closed.
  • the discharge nozzle according to the invention is particularly suitable for discharge devices which have two pumps that can be operated simultaneously with a single handle, namely a push-piston liquid pump that draws water from a storage vessel and a compressed air pump, so that both media of the discharge nozzle are under excess pressure and possibly with a delayed controlled start of delivery or funding end can be fed.
  • a discharge device is described in DE-OS 27 22 469, to which reference is made for further details and effects.
  • the discharge nozzle 1 which is made entirely of injection-molded plastic parts, is arranged on an essentially thin-walled base body 2, which is designed to grip a discharge device with a cap 3, which has at least two pumps operating in parallel.
  • the jacket of the cap 3 forms the cylinder 4 for the pump piston of an air pump and delimits a pressure chamber 5 between this pump piston and the cap end wall.
  • a plug flange 6 directed into the cap for the plug connection with the actuating or piston tappet of a media pump, which penetrates the pump piston of the air pump in a displaceable and sealed manner.
  • the media pump can have at least one outlet valve, so that the media pump is only fed into the plug-in flange 6 from a predetermined pressure in the pump chamber.
  • the plug-in flange 6 is surrounded by a further plug-in flange 7 which lies within the cap jacket and which receives an end wall which delimits the pressure chamber 5 on the end face and which receives at least one outlet valve of the air pump, so that, if necessary, air to the discharge nozzle 1 only after reaching a certain chamber pressure promotes.
  • the outlet valves can be adjusted so that the start or end of delivery of the air is temporally different from that of the medium, e.g. is offset in such a way that the air begins to be conveyed before the medium begins to be conveyed and / or the end of the air is later than the end of the medium.
  • the outer end face of the base body 2 facing away from the discharge device forms a pressure handle for manual operation Actuation of at least one or all pumps by finger pressure, so that there is a purely manual pump drive.
  • the base body 2 forms a nozzle flange 9, which is transverse to its cap axis, for receiving and holding the three separate nozzle components which essentially form the nozzle insert of the discharge nozzle 1.
  • the nozzle axis 10 is thus radial or transverse to the direction of actuation.
  • the plug-in flange 6 delimits an approximately rectangular media channel 11, which connects the outlet channel passing through the actuating plunger to the inner or rear end of the discharge nozzle 1 in a liquid-conducting manner.
  • An air channel 12 is provided approximately axially parallel to and next to the media channel 11, which connects the pressure chamber 5 to the discharge nozzle 1 between its rear and front ends.
  • the nozzle flange 9 forms a front or additional receiving bore 13 extending to the outer circumference of the base body 2, at the bottom of which there is an approximately axially identical, but narrower and shorter and annular receiving bore 14.
  • a front nozzle body 15 is fixedly inserted into the receiving bore 13, which is produced without a core, and can protrude slightly axially beyond the outer circumference of the base body 2. Before that, a smaller nozzle body 16 is frictionally inserted into the receiving bore 14 until it stops, against the front end of which the nozzle body 15 is axially struck.
  • a separate core body 17 is inserted into the nozzle body 15, while a core body 18 which engages in the nozzle body 16 is formed in one piece with the base body 2, namely is formed by the bore core of the annular receiving bore 14.
  • the core body 15 is secured with a snap connection 19 lying on its circumference, in particular axially with respect to the base body 2, as a result of which the nozzle body 16 is also axially secured indirectly.
  • the discharge nozzle 1 has various successive atomization and mixing stages within the nozzle body, in particular an impact atomization 20 being provided, through which the media stream passes after it has covered most of its flow path through the discharge nozzle 1.
  • This impact atomization 20 is located in the region of the inside of a cap end wall 21 of the nozzle body 15, which forms the outer end of the discharge nozzle 1 and the inside and / or outside of which is essentially flat.
  • the cap jacket 22 of the nozzle body 15 projects beyond the inside, which is inserted in a sealed manner into the receiving bore 13 and has the snap connection 19 between its ends on the outer circumference.
  • the nozzle body 16 has a front cap end wall 23, the essentially flat inside of which is struck against the front end wall of the core body 18, the cap jacket 24 projecting beyond this inside being firmly or essentially sealed both in the outer circumference and in the FIGS Inner circumference of the receiving bore 14 engages.
  • the outer width or the outer diameter of the nozzle body 16 is approximately one third smaller than that of the nozzle body 15, but larger than its inner width.
  • a flat annular channel section 25 surrounding the latter is delimited, to which an enlarged end section of the air channel 12 connects tangentially to a narrowly defined peripheral zone.
  • the rear end of the cap shell 22 is provided with a continuous radial groove which forms a radial passage section 26 to the common nozzle axis 10 of the nozzle body 15, 16 and with its radially inner end on the inner circumference of the channel shell 22 a transverse entry 27.
  • a longitudinal entry 28 is provided at the rear end of the cap casing 22 in the region of its inner circumference, which is much narrower than the transverse entry 27, but is also directly connected to the channel section 25 in that it is practically in whose front, annular boundary surface is.
  • the inner circumference of the cap jacket 22 is between its rear end and the core body 17 or, when the core body 17 is removed, over the entire jacket length of an almost constant cross section.
  • a chamber 29 lying approximately in the nozzle axis 10 is delimited therein, which is free of internals or interruptions over its entire cross section over approximately half its length.
  • the cap jacket 22 or the chamber 29 there is at least one recessed, rectilinear and smooth-walled channel section 30 which is approximately parallel to the chamber axis and which can be diametrically opposite the transverse entry 27 and in the rear end of which the longitudinal entry 28 opens.
  • the channel section 30 extends from the rear end of the cap jacket 22 to the inside of the cap end wall 21, at which it merges approximately at right angles into a channel leg directed against the associated nozzle axis 10.
  • This channel leg does not extend to the nozzle axis 10 and forms at its radially inner end a further flow deflection 31 with a deflection angle of between approximately 45 and 90 °, through which the flow forms approximately counter to the flow direction in the channel section 30 or against the aerosol outlet direction the discharge nozzle 1 is deflected so that it emerges through a directional nozzle 33 directed rearward at an acute angle against the axis of the impact atomizer 20.
  • the directional nozzle 33 is essentially by that formed radially inner end of the channel leg and lies approximately in the plane of the inside of the cap end wall 21.
  • the impingement atomization 20 forms a further flow deflection 32, by means of which the flow is deflected in the opposite direction, namely again in the exit direction from the discharge nozzle 1.
  • the impact atomization 20 has a trough-shaped flat or spherical cap-shaped impact surface 34, the center of curvature of which lies in front of the front end of the discharge nozzle 1 in its axis.
  • the outer width of the impact recess is several times greater than its depth, the directional nozzle 33 lying opposite the impact surface 34 following the circumferential boundary and taking up a much smaller area than this.
  • the baffle surface 34 forms the bottom of a deflection chamber 35, the opposite wall of which is essentially flat and which has its greatest depth in the center in such a way that it tapers off in an axial section from this center to the outer circumference at a few angular degrees.
  • the outlet opening 38 Discharge nozzle 1 forms.
  • the channel section 37 has substantially constant internal cross sections over its entire length, so that the outlet 36 is delimited almost over its entire circumference in the plane of the inside of the cap end wall 21.
  • the directional nozzle 33 surrounds the peripheral limitation of the outlet 36 over a larger arc angle of, for example, 180 °, the directional nozzle 33 and the outlet 36 being separated from one another only by a narrow ridge.
  • the width of the outlet 36 is significantly smaller than the outer width of the baffle 34, but its passage cross section is approximately equal to that the straightening nozzle 33. It is also conceivable to provide two or more longitudinal channels 30 uniformly distributed over the circumference with associated longitudinal inlets 28 or straightening nozzles 33.
  • a channel section 39 is likewise delimited annularly about the associated nozzle axis 10, into which the media channel opens in the area of a limited peripheral zone and via which the media nozzle 40 formed by the nozzle body 16 underneath Pressure is supplied with liquid medium.
  • Provided on the inner circumference of the cap jacket 14 is at least one groove-shaped and approximately axial channel section 41 starting from the rear end thereof, which is continued in the inside of the cap end wall 23 by a radial channel section which opens into a swirl device 42 lying in the nozzle axis. This is e.g.
  • this chamber merges into a narrowed channel section 43, which lies in the nozzle axis, has constant cross sections over its length and forms the nozzle opening 44 of the media nozzle 40 with its front end.
  • the nozzle opening 44 is located in the front, flat end face of a truncated cone-shaped nozzle projection 45, which protrudes beyond the rest of the front of the cap end wall 23 and has a substantially smaller outside width compared to the inside width of the chamber 29.
  • the annular flat front end face of the nozzle body 16 forms with the nozzle projection 45 the rear end wall 46 of the chamber 29, into which the nozzle projection 45 protrudes a little.
  • the end face of the nozzle body 16 rests against the rear, essentially planar end 53 of the nozzle body 15 such that although the chamber 29 is essentially closed to the rear, the longitudinal inlet (s) 28 remain free and the channel section 26 in the plane of the rear end 53 is limited over the entire circumference at least over a radially inner part of its length.
  • the transverse inlet 27 is thereby directed radially against the nozzle projection 45 along the rear end wall 46, the transverse inlet 27 extending further forward than the nozzle projection 45 protruding, so that part of the flow from the transverse inlet 27 flows freely in front of the nozzle opening 44 while a rear part washed around the nozzle projection 45.
  • the front end of the chamber 29 is delimited by a conical guide surface 47, the tip of which is directed in the nozzle axis against the nozzle opening 44, but lies essentially outside the direct flow against the transverse inlet 27.
  • the pointed cone 48 is formed in one piece by the rear end of the core body 17, in whose front end face 49 the baffle surface 34 is provided as a depression. Between this end face 49 and the pointed cone 48, the core body 17 has a e.g. cylindrical portion with a substantially constant outer cross-section, with which the core body 17 is inserted so tightly into the inner periphery of the cap shell 22 that its front end face 49 rests against the inner end face of the cap end wall 21 in a substantially sealed manner.
  • the longitudinal channel 30 is formed by a longitudinal groove 50, the open longitudinal groove side of which lies in the inner circumference of the cap jacket 22 and is directed against the nozzle axis 10.
  • the longitudinal entry 28 extends only over a part of the depth of the longitudinal groove 50 adjoining the groove base 51, since the radial distance of the groove base 51 from the nozzle axis 10 is slightly larger than the outer circumference of the nozzle body 16 in the region its system at the rear end is 53.
  • the radial extent of the longitudinal entry 28 is substantially less than half the groove depth.
  • the longitudinal inlet 28 forms a slot which is delimited on one longitudinal side by the groove base 51 and on the other longitudinal side by the outer circumference of the nozzle body 16, so that its longitudinal direction extends around the nozzle axis 10.
  • the longitudinal opening of the groove 50 is closed by the cylindrical section of the core body 17, so that here the channel section 30 is delimited in cross-section over its circumference, while it is between the end walls of the chamber 29 on its radially inner longitudinal side is essentially open at full width.
  • the flanks of the channel section 30 can be approximately parallel to one another or can diverge slightly from the open long side.
  • the guide surface 47 extends to the beginning of the part of the channel section 30 which is closed over the circumference and which forms the single chamber outlet 52 at this point, although two or three chamber outlets distributed over the circumference are also conceivable corresponding to the channel sections 30.
  • the discharge nozzle works according to the following procedure: By depressing the handle 8, air is pressed from the pressure chamber 5 via the air duct 12 into the duct section 25 and from there through the transverse entry 27 into the chamber 29 and through the longitudinal entry 28 along the groove bottom 51 into the duct section 30. Simultaneously or slightly later, with the media pump, liquid is pressed into the channel section 39 via the media channel 11 and through the channel section 41 into the swirl device 42 in such a way that an aerosol spray cone emerges into the chamber 29 from the nozzle opening 44 and is directed against the guide surface 47.
  • a flowing gas or air cover is provided on at least one channel section 30 of the nozzle channel of a discharge nozzle 1 in order to convey an aerosol that has already formed essentially without contacting the wall.
  • This aerosol is then supplied, while maintaining the flow velocity approximately constant or further accelerating, directly via the deflection 31 of the directional nozzle 33 formed by its outlet and pressed against the baffle surface 34. With a further increase in the degree of fineness, the aerosol is deflected again at the impact surface 34 and discharged directly via the channel section 37.
  • the length of the channel section 37 is several times greater than its clear width, which in turn is significantly greater than that of the channel section 43.
  • the total passage cross section of the air inlets 27, 28 is, however, substantially larger than the passage cross section of the channel section 37, the passage cross section of the longitudinal inlet 28 expediently being several times smaller than that of the transverse inlet 27.
  • the boundary edges of at least one or all of the entrances or exits can expediently be sharp-edged in order to achieve favorable tear-off flows and possibly further atomization at the edge of the outlet opening 38.
  • the passage cross section of the channel section 30 is expediently substantially larger than that of the longitudinal inlet 28, and the width of the transverse inlet 27 can be approximately the same as or larger than the outer width of the nozzle projection 45.
  • the passage cross section of the channel section 30 or the directional nozzle 33 can be of the order of magnitude of the passage cross section of the channel section 37.
  • the passage cross section of the radial channel leg or channels adjoining the channel sections 30 is expediently continuously narrowed in the flow direction in that the opposite channel flanks converge at an acute angle.
  • the total passage cross section of the straightening nozzle 33 or the straightening nozzles is then advantageously smaller than the passage cross section of the channel section 37, but smaller than the total passage cross section of the longitudinal inlet (s) 28.
  • each directional nozzle 33 extends only over a relatively small arc angle of The circumference of the outlet 36 so that adjacent directional nozzles 33 can be at a greater distance from each other.
  • the transverse entry 27 can advantageously also be arranged such that it is not directly opposite a channel section 30, but is provided, for example, in the case of three evenly distributed channel sections 30 directly adjacent to one of these channel sections.
  • FIGS. 3 and 4 show an embodiment with a single channel section 30 opposite the inlet 27, while FIG. 5 shows an embodiment with three channel sections 30, none of which are diametrically opposed to the inlet 27.
EP92101302A 1991-01-30 1992-01-28 Buse de débit pour milieux Expired - Lifetime EP0497255B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4102632 1991-01-30
DE4102632A DE4102632A1 (de) 1991-01-30 1991-01-30 Austragduese fuer medien

Publications (3)

Publication Number Publication Date
EP0497255A2 true EP0497255A2 (fr) 1992-08-05
EP0497255A3 EP0497255A3 (en) 1993-02-03
EP0497255B1 EP0497255B1 (fr) 1996-12-18

Family

ID=6423947

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92101302A Expired - Lifetime EP0497255B1 (fr) 1991-01-30 1992-01-28 Buse de débit pour milieux

Country Status (6)

Country Link
US (1) US5295628A (fr)
EP (1) EP0497255B1 (fr)
JP (1) JP3401267B2 (fr)
AT (1) ATE146384T1 (fr)
DE (2) DE4102632A1 (fr)
ES (1) ES2095335T3 (fr)

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EP0663240A1 (fr) * 1994-01-17 1995-07-19 L'oreal Dispositif de distribution à pertes de charge réduites comportant une buse de distribution
EP0706830A1 (fr) * 1994-09-16 1996-04-17 GUALA S.p.A. Un dispositif de pulvérisation actionnable manuellement qui utilise l'air comme fluide d'atomisation

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US5350116A (en) * 1993-03-01 1994-09-27 Bespak Plc Dispensing apparatus
DE4227899A1 (de) * 1993-09-24 1994-02-24 Pfeiffer Erich Gmbh & Co Kg Austrageeinrichtung für fließfähige Medien
FR2845623B1 (fr) * 2002-10-11 2005-01-14 Rexam Dispensing Sys Pulverisateur a poussoir muni d'une buse laterale saillante
US20040135007A1 (en) * 2002-12-27 2004-07-15 Nathan Palestrant Atomizing nozzle with anodized aluminum body
DE10319582B4 (de) * 2003-04-24 2007-03-22 Lechler Gmbh Zweistoffsprühdüse
GB0516024D0 (en) * 2005-08-04 2005-09-14 Incro Ltd Nozzle arrangements
FR2902675B1 (fr) * 2006-06-21 2008-09-12 Lvmh Rech Buse de distribution de produit de fluide et dispositif de distribution de produit de fluide comprenant une telle buse
JP6575037B2 (ja) * 2016-12-12 2019-09-18 春日電機株式会社 回転ノズル
JP6814993B2 (ja) 2018-01-31 2021-01-20 パナソニックＩｐマネジメント株式会社 噴霧装置

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EP0663240A1 (fr) * 1994-01-17 1995-07-19 L'oreal Dispositif de distribution à pertes de charge réduites comportant une buse de distribution
FR2715083A1 (fr) * 1994-01-17 1995-07-21 Oreal Dispositif de distribution à pertes de charge réduites comportant une buse de distribution.
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Also Published As

Publication number Publication date
ES2095335T3 (es) 1997-02-16
JPH05104038A (ja) 1993-04-27
DE4102632A1 (de) 1992-08-06
DE59207691D1 (de) 1997-01-30
ATE146384T1 (de) 1997-01-15
JP3401267B2 (ja) 2003-04-28
EP0497255A3 (en) 1993-02-03
EP0497255B1 (fr) 1996-12-18
US5295628A (en) 1994-03-22

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