EP2108459B1 - Buse pour pulvérisation d'un liquide - Google Patents

Buse pour pulvérisation d'un liquide Download PDF

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Publication number
EP2108459B1
EP2108459B1 EP09157562A EP09157562A EP2108459B1 EP 2108459 B1 EP2108459 B1 EP 2108459B1 EP 09157562 A EP09157562 A EP 09157562A EP 09157562 A EP09157562 A EP 09157562A EP 2108459 B1 EP2108459 B1 EP 2108459B1
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EP
European Patent Office
Prior art keywords
rotation
nozzle
channel
chamber
guide element
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EP09157562A
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German (de)
English (en)
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EP2108459A1 (fr
Inventor
Alfons Kenter
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Individual
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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
    • 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 nozzle for atomizing a liquid having a nozzle opening, with a rotation chamber upstream of the nozzle opening, and having at least one rotational channel opening tangentially into the rotation chamber for displacing the liquid into a rotational movement coaxial with the nozzle opening, the liquid having a movement component directed counter to the nozzle exit direction can be introduced into the rotary chamber.
  • Such a nozzle is from the US Pat. No. 2,140,903 known.
  • a similar nozzle also shows the DE 101 38 622 C2 .
  • the atomizer is supplied with the usual and relatively low water line pressure. In order to avoid mere wetting of the environment with water, it is necessary to achieve the smallest possible droplet size. Taking into account the low water line pressure, this is possible if the water is placed in a rotational movement before atomizing.
  • the water is introduced by means of rotation channels from the outside tangentially into a rotation chamber. The water is first from the outside to a circulating track and further transported inwards and toward the nozzle opening.
  • the problem underlying the invention is to develop a nozzle of the aforementioned type such that a smaller droplet size can be achieved.
  • a nozzle of the aforementioned type is specified in which a cross-section of the rotary channel decreases from outside to inside in the direction of the rotary chamber.
  • the liquid flowing into the rotation chamber can be conducted to a rotation base of the rotation chamber.
  • the opening into the rotation chamber rotation channel is directed on the one hand with a component opposite to the nozzle exit direction and on the other hand on a rotation basis. Due to the rotational channel which opens tangentially into the rotation chamber, a rotating fluid or water disk is thus initially formed on the rotation base.
  • the liquid is guided in alignment with the rotation base by means of the rotation channel.
  • the rotation base is arranged opposite the nozzle opening.
  • a rotating fluid or water column builds up. Within the water column lower friction resistances act on the molecules than in the contact area between the water column and the wall of the rotation chamber. As a result, a greater rotational speed can be set within the water column than at the edge of the water column.
  • the rotation base is formed as a conical or hemispherical recess or as a flat plane.
  • this promotes the formation of the rotating water disk or water column and, on the other hand, due to the larger volume of water, the formation of a higher rotational speed of the water molecules within the water column is promoted.
  • a guide piece arranged upstream of the nozzle opening has the rotation channel.
  • the use of a separate guide piece allows a modular design of the nozzle. This facilitates the manufacture and replacement of individual elements in the event of a defect.
  • the guide piece is composed of a first guide element and a second guide element.
  • the first guide element may have the nozzle opening, the rotation channel and a first subregion of the rotation chamber.
  • the nozzle opening as a fine through-hole, the rotary channel as a recessed groove, and the first portion of the rotary chamber as a recess are relatively easy to manufacture.
  • the second guide element may have the rotation base as the second portion of the rotation chamber.
  • the rotation base may be formed as a flat plane or a conical or hemispherical depression, which is also easy and thus inexpensive to produce without much effort.
  • the height of the rotation chamber increases towards the axis of rotation of the rotational movement.
  • this can take place in that the first subregion of the rotation chamber in the first guide element is designed as a conical or hemispherical depression.
  • the rotation base may be formed as a conical or hemispherical recess.
  • a conical or frusto-conical depression or a plateau coaxial with the nozzle opening educated on the side facing away from the rotation chamber side of the first guide element.
  • a conical or frusto-conical depression or a plateau coaxial with the nozzle opening educated.
  • a cylindrical part of the nozzle channel is kept comparatively short as part of the nozzle opening by this depression, whereby unnecessary friction is avoided.
  • droplet formation on the end face of the guide element surrounding the nozzle opening can be effectively suppressed by the spray mist
  • the rotation channels are arranged to each other such that the liquid is introduced as uniformly as possible from all sides of the rotary chamber in this.
  • the effective cross section of the rotational channel or the sum of the effective cross sections of the rotational channels is preferably equal to or greater than the effective cross section of the nozzle opening.
  • a cross-section of the rotation channel decreases from outside to inside in the direction of the rotation chamber, in particular with respect to the height and / or the width of the rotation channel.
  • the flow velocity of the liquid is increased. This in turn leads to a higher rotational speed of the resulting water column, which ultimately favors the formation of a very fine spray.
  • the nozzle opening is designed as a nozzle channel with a substantially constant effective cross-section.
  • a rotating water cylinder which essentially represents the axis of rotation of the entire rotating water column, is guided from the center of the rotation chamber substantially laminarly up to the exit from the nozzle opening.
  • the length of the nozzle channel corresponds to the diameter of the nozzle opening or the length of the nozzle channel is smaller than the diameter of the nozzle opening.
  • at least a part of the liquid from a first of the rotation chamber facing the region of the nozzle channel or the nozzle opening to a diametrically remote from the rotation chamber and the first region second region of the nozzle channel and the nozzle opening.
  • the guide piece on the rotation channel or the rotation channels in each case over the full axial length of the Leit Publisheds associated feed channels.
  • Through the feed channels results in an easy to produce water supply for the rotation channels.
  • a first compensation chamber formed in the guide piece between the rotation channel and the associated feed channel is provided. This makes it easy to compensate for pressure fluctuations and speed losses due to turbulent flow.
  • a pressure piece for fixing the guide piece is provided. It is advantageous that can be fixed by means of this pressure piece, the guide piece in a predetermined position to the nozzle opening.
  • a sintered filter can take over the function of the pressure piece.
  • the pressure piece has a plurality of the feed channels respectively associated holes and between the holes and the feed channels a second compensation chamber is arranged. The supply of the fluid takes place in this case substantially annular. Thus, a sufficient supply of water is ensured without much effort even when fixing the Leit Publishedes with the pressure piece.
  • a housing for receiving the nozzle is provided with an internal thread, wherein the internal thread is in engagement with an external thread of the pressure piece.
  • the nozzle can be mounted by simply inserting the Leit Publishedes in the housing and then screwing the pressure piece.
  • the housing and the guide piece, in particular the first guide element made in one piece.
  • this combined component can be produced in a simple and inexpensive way.
  • a cost-effective nozzle can be produced, which can be used for example for fire protection.
  • the guide piece and / or the first guide element made of ceramic can be produced.
  • an increased abrasion resistance can be realized.
  • a permanent operation is guaranteed even with a permanent and / or regular use of the nozzle, such as for air conditioning and / or filtering out dust and dirt particles.
  • nozzle according to the invention for air conditioning, for filtering dust and / or dirt particles and / or for fire protection.
  • Fig. 1 shows a perspective top view of a guide element 10.
  • the guide element 10 is formed substantially cylindrical.
  • a cylinder 20 is centered on a cylindrical disc 19 with respect to the disc 19th arranged smaller diameter.
  • the guide element 10 can be produced in one piece by means of a lathe.
  • the guide element 10 has a nozzle opening 11 in the center.
  • the nozzle opening 11 is formed as a nozzle channel 12 with a constant effective cross section.
  • the cylinder 20 has rotation channels 13, 14, which are formed as grooves or notches.
  • the rotation channels 13, 14 lead tangentially from outside into a first subregion of a rotation chamber 15, wherein the first subregion of the rotation chamber 15 is formed as a substantially conical depression around the nozzle opening 11.
  • the rotation channels 13, 14 are designed such that the recess decreases from the outside inwards, that is to say in the direction of the first subregion of the rotation chamber 15.
  • Fig. 2 shows a perspective and sectional side view of the guide element 10 according to Fig. 1 ,
  • the conical depression which represents the first portion of the rotary chamber 15, consists of a first chamber wall 16 and a chamber cone 17.
  • the chamber wall 16 is frusto-conical and has a smaller angle of inclination than the chamber cone 17.
  • the height of the chamber wall 16 corresponds to the depression of the rotation channels 13, 14 during the transition into the first subregion of the rotation chamber 15.
  • a substantially conical depression 18 is formed coaxially with the nozzle opening 11.
  • Fig. 3 shows a plan view of the underside of the guide element 10 according to Fig. 1 ,
  • Fig. 4 shows a perspective and sectional side view of a guide piece 21 with a guide element 10 according to Fig. 1 ,
  • the guide piece 21 consists of a first guide element 10 and a second guide element 22.
  • the second guide element 22 is designed as a disk and has the same diameter as the disk 19 of the first guide element 10.
  • the second guide element 22 is assigned to the first guide element such that a uniformly deep, circumferential and U-shaped groove results between the second guide element 22 and the disk 19 of the first guide element 10.
  • a seal 23 is arranged, which is designed here as an O-ring.
  • the second guide element 22 forms a plane rotation base 24.
  • a rotation chamber 25 By the rotation base 24 and the first portion of the rotation chamber 15 is a rotation chamber 25.
  • the rotation chamber 25 leads the rotation channel 13, whose cross-section decreases going from outside to inside.
  • the rotational channel 13 is arranged obliquely in the first guide element 10 such that the fluid flowing through it is introduced into the rotation chamber 25 from outside to inside and with a component directed counter to the nozzle outlet opening.
  • Fig. 5 shows a sectional side view of a nozzle 26 according to the invention, which produces a fine spray 27, wherein the spray 27 from the nozzle 26 extends conically and forms a full cone in the embodiment shown.
  • the nozzle 26 has a housing 28, wherein the housing 28 is connected to a pressure piece 29 by means of a thread 30. In this case, an internal thread of the housing 28 is in engagement with an external thread of the pressure piece 29.
  • a guide piece 31 is composed of a first guide element 32 and a second guide element 33.
  • the first guide element 32 is inserted in the housing 28, while the second guide element 33 is held by means of the pressure piece 29 in a circular disk-shaped receptacle of the first guide element 32.
  • the second guide element 33 has a substantially circular disk-shaped configuration, wherein a plurality of uniformly spaced recesses or grooves are provided as feed channels 34 on the outer peripheral surface of the second guide element 33.
  • the feed channels 34 merge into an annular first compensation chamber 36 formed by means of the first guide element 32.
  • resulting rotational channels 35 which direct the liquid with a nozzle outlet direction of the opposing component on a plane rotation basis of a rotary chamber 37.
  • the rotation channels 35 taper in the direction of the rotation chamber 37 or the rotation base.
  • Fig. 6 shows a sectional side view of a second nozzle according to the invention 38.
  • the nozzle 38 corresponds in construction substantially to the nozzle 26. In this respect, reference is made to the comments on the nozzle 26. Similar to the nozzle 26 according to Fig. 5 also, the nozzle 38 has a housing 39 that is connected to a pressure piece 40 by means of a thread 41. Here, an internal thread of the housing 39 is in engagement with an external thread of the pressure piece 40.
  • the nozzle 38 has a guide piece 42 which is composed of a first guide element 43 and a second guide element 44.
  • the first guide element 43 is an integral part of the housing 39.
  • the first Guide element 43 and the housing 39 are integrally formed in the embodiment shown here.
  • the second guide element 44 is partially disposed within a bore 45 in the pressure piece 40.
  • the second guide element 44 rests firmly against the first guide element 43 or the housing 39 on a first side, while resting on shoulders 46 of the pressure element 40 on a second side remote from the first guide element 43.
  • the second guide element 44 has on its outer peripheral surface a plurality of uniformly spaced feed channels 47.
  • the feed channels 47 merge into an annular first compensation chamber 53 formed by means of the first guide element 43.
  • resulting rotational channels 54, 55 which direct the liquid with a nozzle outlet direction of the opposing component on a flat rotation base 48 of a rotary chamber 56.
  • the rotation channels 54, 55 taper in the direction of the rotation chamber 56 or the rotation base 48.
  • the rotation base 48 is arranged on the first side of the second guide element 44 facing away from the pressure piece 40.
  • a further bore 49 is provided in the pressure piece 40, wherein the diameter of the further bore 49 is smaller than the diameter of the bore 45.
  • a spring 50 is arranged is supported on the second guide member 44 and a ball 51 presses on an opening of a feed channel 52 for a liquid.
  • the ball 51 is pressed against the force of the spring 50 from its seat in the direction of the second guide element 44. This allows the liquid to flow into the bore 49 and into the feed channels 47.
  • a design with the spring 50 facilitates the assembly, since the guide element 44 so positioned itself during assembly.
  • the liquid Via the first compensation chamber 53 integrated in the housing 39, the liquid enters the rotation chamber 56 by means of the rotation channels 54, 55, in order finally to exit from the nozzle 38 via the nozzle opening 57.
  • Fig. 7 shows the second guide element 44 according to Fig. 6 in a perspective side view with the flat circular rotation base 48.
  • a plurality of feed channels 58 are arranged close to each other. These feed channels 58 can be produced particularly easily as depressions or grooves.
  • Fig. 8 is the second guide element 44 according to Fig. 6 and 7 can be seen in a further perspective side view, so that reference is also made in this regard to the above statements.
  • the second guide element 44 consists of a first portion 59 and a second portion 60.
  • the first portion 59 has a substantially circular cylindrical shape.
  • two feed channels 61 arranged facing away from one another are provided on the outer peripheral surface of the first section 59, whose effective cross section or conductance is greater than the effective cross section or conductance of the feed channels 58 of the second section 60.
  • the effective cross section or the conductance of the Feed channels 58 greater than the effective cross-section or conductance of the rotation channels 54, 55.
  • the nozzle opening 57 in turn has a smaller effective cross-section or conductance than the rotation channels 54, 55 on. As a result, a sufficient fluid pressure and the supply of sufficient quantities of liquid is guaranteed.
  • Fig. 8 the housing 39 according to Fig. 6 can be seen, wherein the nozzle opening is arranged in a protruding plateau 62.
  • Fig. 9 shows the housing 39 according to Fig. 6 and 8th in a further perspective side view, so that the integrated in the housing 39 rotation channels 55 and a first portion of the rotation chamber 63 can be seen.
  • Fig. 10 again shows a sectional side view of a nozzle 38 similar Fig. 6 , In this respect, reference is made to the corresponding statements. Compared to Fig. 10 reveals that Fig. 11 a further nozzle 64 according to the invention, whose structure is also substantially the same of the nozzle 38 according to Fig. 6 equivalent. In this respect, reference is made to the comments on the nozzle 38.
  • the nozzles 38, 64 of Fig. 10,11 However, they have the projecting plateau 62.
  • the nozzle 64 according to Fig. 11 differs from the nozzle 38 according to Fig. 10 a rotary chamber 65 which is composed of a circular cylindrical chamber space 66 facing the rotation base 48 and a conical comb taper 67 facing the nozzle opening 57.
  • the rotary chamber 56 of the nozzle 38 after Fig. 10 only conical and has no circular cylindrical chamber space.
  • water passes with the usual pressure from water pipes through not shown holes of a pressure piece to the first guide element 10, 32, 43.
  • the rotation channels 13, 14, 35, 54, 55 the water is tangentially into the outside Rotation chamber 25, 37, 56, 65 initiated.
  • the water is directed from the outside to a circulating path inwards and counter to the nozzle exit opening onto the rotation base 24, 48.
  • On the rotation base 24, 48 forms a rotating water disc, which forms with increasing amount of water in the direction of the nozzle opening 11, 57 as a rotating water column.
  • the water molecules within the rotating water column in the area of the axis of rotation reach a maximum rotational speed.
  • the nozzle according to the invention can also be used in the field of fire protection. This is compared to conventional sprinkler systems of particular advantage that not only the fire is suffocated or extinguished by the fine spray, but at the same time soot and dirt particles are filtered out of the air. In addition, damage to objects by excessive fluid entry is avoided. The extinguishing water damage can thus be largely avoided.

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  • Nozzles (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)

Claims (15)

  1. Buse pour pulvérisation d'un liquide avec une ouverture de buse (11, 57), avec une chambre de rotation (25, 37, 56, 65) disposée à l'avant de ladite ouverture de buse (11, 57) et avec au moins un canal de rotation (13, 14, 35, 54, 55) débouchant tangentiellement dans la chambre de rotation (25, 37, 56, 65) pour mettre en mouvement le liquide en un mouvement de rotation coaxiale à l'ouverture de buse (11, 57), le liquide pouvant être introduit dans la chambre de rotation (25, 37, 56, 65) grâce à une composante du mouvement dirigée en sens contraire de la direction de sortie de la buse, caractérisé en ce que la section du canal de rotation (13, 14, 35, 54, 55) diminue en allant de l'extérieur vers l'intérieur dans la direction de la chambre de rotation (27, 37, 56, 65).
  2. Buse selon la revendication 1, caractérisée en ce que le liquide arrivant dans la chambre de rotation (25, 37, 56, 65) est conduit sur une base de rotation (24, 48) de la chambre de rotation (25, 37, 56, 65), la base de rotation (24, 48) étant de préférence disposée en face de l'ouverture de buse (11, 57) et/ou la base de rotation (24, 48) présentant une forme conique, ou une forme hémisphérique, ou une forme plane.
  3. Buse selon l'une des revendications 1 ou 2, caractérisée en ce qu'une pièce de guidage (21, 31, 42) située en amont de l'ouverture de buse (11, 57) forme le canal de rotation (13, 14, 35, 54, 55), ladite pièce de guidage étant constituée de préférence d'un premier élément de guidage (10, 32, 43) et d'une deuxième élément de guidage (22, 33, 44).
  4. Buse selon la revendication 3, caractérisée en ce que le premier élément de guidage (10, 32, 43) comprend l'ouverture de buse (11, 57), le canal de rotation (13, 14, 35, 54, 55) et une première zone partielle de la chambre de rotation (15, 63) et/ou le deuxième élément de guidage (22, 33, 44) comprend la base de rotation (24, 48) comme deuxième zone partielle de la chambre de rotation (25, 37, 56, 65).
  5. Buse selon l'une des revendications précédentes, caractérisée en ce que la hauteur de la chambre de rotation (25, 37, 56, 65) augmente en allant vers l'axe de rotation du mouvement de rotation.
  6. Buse selon l'une des revendications 3 à 5, caractérisée en ce qu'un évasement (18) conique ou tronconique, ou un plateau (62) est disposé sur le côté en face de la chambre de rotation (25, 37, 56, 65) du premier élément de guidage (10, 32, 43).
  7. Buse selon l'une des revendications précédentes, caractérisée en ce que plusieurs, en particulier deux ou quatre, canaux de rotation (13, 14, 35, 54, 55) sont prévus.
  8. Buse selon l'une des revendications précédentes, caractérisée en ce que la section efficace du canal de rotation (13, 14, 35, 54, 55), ou la somme des sections efficaces des canaux de rotation (13, 14, 35, 54, 55), est égale ou supérieure à la section de l'ouverture de buse (11, 57).
  9. Buse selon l'une des revendications précédentes, caractérisée en ce que la section du canal de rotation (13, 14, 35, 54, 55) diminue régulièrement en fontion de la hauteur et/ou de la largeur du canal de rotation (13, 14, 35, 54, 55), en allant de l'extérieur vers l'intérieur de la chambre de rotation (25, 37, 56, 65).
  10. Buse selon l'une des revendications précédentes, caractérisée en ce que l'ouverture de buse (11, 57) est formée d'un canal de buse (12) avec une section efficace substantiellement constante.
  11. Buse selon l'une des revendications précédentes, caractérisée en ce que la longueur du canal de buse (12) correspond au diamètre de l'ouverture de buse (11, 57) ou la longueur du canal de buse (12) est plus petite que le diamètre de l'ouverture de buse (11, 57).
  12. Buse selon l'une des revendications 3 à 11, caractérisée en ce que la pièce de guidage comprend des canaux d'alimentation (34, 47, 58, 61) pour le canal de rotation (13, 14, 35, 54, 55) ou les canaux de rotation (13, 14, 35, 54, 55) disposés sur toute la longueur axiale de la pièce de guidage (21, 31, 42), de préférence une chambre d'équilibrage (36, 53) étant prévue dans la pièce de guidage (21, 31, 42) entre le canal de rotation (13, 14, 35, 54, 55) et le canal d'alimentation (34, 47, 58, 61) correspondant.
  13. Buse selon l'une des revendications 3 à 12, caractérisée en ce qu'elle comprend une pièce de pression (29, 40) pour la fixation de la pièce de guidage (21, 31, 42), de préférence ladite pièce de pression (29, 40) présentant des perçages (45, 49, 52) correspondant respectivement aux canaux d'alimentation (34, 47, 58, 61), et une deuxième chambre d'équilibrage étant disposée entre les perçages (45, 49, 52) et les canaux d'alimentation (34, 47, 58, 61).
  14. Buse selon la revendication 13, caractérisée en ce qu'un carter (28, 39) est disposé pour recevoir la buse grâce à un taraudage, lequel est en liaison avec un filetage de la pièce de pression (29, 40).
  15. Utilisation d'une buse selon l'une des revendications précédentes pour la climatisation, pour le filtrage de particules de poussière et/ou de saleté et/ou pour la protection contre le feu.
EP09157562A 2008-04-08 2009-04-07 Buse pour pulvérisation d'un liquide Active EP2108459B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008017913A DE102008017913A1 (de) 2008-04-08 2008-04-08 Düse zum Zerstäuben einer Flüssigkeit

Publications (2)

Publication Number Publication Date
EP2108459A1 EP2108459A1 (fr) 2009-10-14
EP2108459B1 true EP2108459B1 (fr) 2010-06-02

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ID=40666829

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EP09157562A Active EP2108459B1 (fr) 2008-04-08 2009-04-07 Buse pour pulvérisation d'un liquide

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EP (1) EP2108459B1 (fr)
AT (1) ATE469702T1 (fr)
DE (2) DE102008017913A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017113207A1 (de) * 2017-06-15 2018-12-20 Alfons Kenter Zerstäuberdüse zum Zerstäuben eines Fluids

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2140903A (en) 1936-06-20 1938-12-20 Merton L Fisk Spraying nozzle
US3326473A (en) * 1964-08-07 1967-06-20 Spraying Systems Co Spray nozzle
DE59709924D1 (de) * 1997-12-22 2003-05-28 Alstom Switzerland Ltd Zweistufige Druckzerstäuberdüse
DE10138622C2 (de) 2001-08-13 2003-06-18 Alfons Kenter Zerstäuber zum Vernebeln einer Flüssigkeit
DE10208223A1 (de) * 2002-02-26 2003-10-30 Bosch Gmbh Robert Brennstoffeinspritzventil

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DE102008017913A1 (de) 2009-10-15
ATE469702T1 (de) 2010-06-15
EP2108459A1 (fr) 2009-10-14
DE502009000024D1 (de) 2010-07-15

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