EP3375528B1 - Dispenser device of a jet of water in the form of a vortex - Google Patents

Dispenser device of a jet of water in the form of a vortex Download PDF

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Publication number
EP3375528B1
EP3375528B1 EP17425029.0A EP17425029A EP3375528B1 EP 3375528 B1 EP3375528 B1 EP 3375528B1 EP 17425029 A EP17425029 A EP 17425029A EP 3375528 B1 EP3375528 B1 EP 3375528B1
Authority
EP
European Patent Office
Prior art keywords
swirl
chamber
water
device body
side wall
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.)
Active
Application number
EP17425029.0A
Other languages
German (de)
French (fr)
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EP3375528A1 (en
Inventor
Gerhard Nikles
Alberto Turrini
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.)
Nikles Tec Italia SRL
Original Assignee
Nikles Tec Italia SRL
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 Nikles Tec Italia SRL filed Critical Nikles Tec Italia SRL
Priority to EP17425029.0A priority Critical patent/EP3375528B1/en
Priority to ES17425029T priority patent/ES2831775T3/en
Publication of EP3375528A1 publication Critical patent/EP3375528A1/en
Application granted granted Critical
Publication of EP3375528B1 publication Critical patent/EP3375528B1/en
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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
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/18—Roses; Shower heads
    • B05B1/185—Roses; Shower heads characterised by their outlet element; Mounting arrangements therefor
    • 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
    • B05B1/3426—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 emerging in the swirl chamber perpendicularly to the outlet 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
    • B05B1/34—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
    • 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
    • B05B1/3463—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 extending outwardly, e.g. radially from the inside to the outside

Definitions

  • the present invention relates to a dispenser device of jets of water in the form of a vortex, for example for hand showers, shower heads, body sprays i.e. small shower heads placed on one or more sides of the shower.
  • Documents WO 2009/126987 A1 and WO 2016/047252 A1 disclose showerheads according to the prior art.
  • Dispenser devices are already known of suitable to generate one or more water jets in the form of a vortex. Depending on the operating pressure, these jets of water may be particularly gentle on the skin, or, as in the case of the body spray, give a massage-like effect.
  • the dispenser device generates multiple jets of water in the form of a vortex that intersect each other causing the rupture of the bonds between the water molecules and thereby forming a jet of water spray, also known as "mist”.
  • some embodiments of the dispenser device use rotating propeller parts which, when hit by a stream of water, make the flow itself rotate.
  • Other embodiments provide for the use of rotating nozzles oriented so as to be at an angle with each other.
  • the purpose of the present invention is to provide a dispenser device of one or more jets of water in the form of a vortex with a particularly compact and simple structure consisting of a reduced number of components, and thus more reliable than those of the prior art.
  • reference numeral 1 globally denotes a dispenser device of jets of water in the form of a vortex according to the invention.
  • the device 1 comprises a device body 10 in which at least one path to swirl the water 12 is made.
  • the dispenser device is provided with eight swirl paths 12, each suitable to generate a corresponding jet of water in the form of a vortex.
  • Each swirl path 12 comprises a swirl chamber 14 with a circular cross-section.
  • the swirl chamber 14 is defined by a side wall 16 extending axially between an inlet end 18 and an outlet end 20 of the water.
  • the outlet end 20 of the water flows into a respective dispenser nozzle 22.
  • the side wall 16 narrows progressively from the inlet end 18 to the outlet end 20.
  • each swirl chamber 14 consists of a concavity made in the device body 10, having a circular cross-section, progressively decreasing in diameter and from the bottom of which a respective dispenser nozzle 22 extends.
  • every dispenser nozzle 22 is made in the device body 10 as in a duct, for example having a uniform cross-section.
  • Each swirl chamber 12 further comprises, made in the device body 10, a chamber supply channel 24.
  • This chamber supply channel 24 can be fluidically connected to a water supply pipe and flows into an inlet portion 162 of the side wall 16 of the swirl chamber 14.
  • the chamber supply channel 24 is arranged tangentially relative to the respective swirl chamber 14.
  • the basic idea of the present invention is to introduce a stream of pressurised water into a swirl chamber 14 in a tangential direction to said chamber, so that the flow of water maintains its speed inside the chamber and, guided by the side wall, forms a vortex.
  • the diameter of the dispenser nozzle 22 is chosen in such a way that the rotation of the water flow is maintained while passing through the dispenser nozzle 22 and translates, upon leaving the nozzle, into a jet with a substantially conical vortex, as shown in Figure 5 .
  • the diameter of the dispenser nozzle 22 is between 2 mm and 5 mm, preferably between 3 mm and 4.5 mm.
  • the maximum size of the cross-section of the supply channel 24, such as its width, is less than the radius of circumference of the swirl chamber 14 at the water inlet end 18.
  • the supply chamber 14 has, at least in a portion ending with the outlet end 20, a conical or spherical cap or parabolic profile, or a combination of such profiles.
  • each chamber supply channel 14 is defined by side walls parallel to the axis of said cylindrical inlet portion 162. This way, at the inlet point of the supply channel 24 into the respective swirl chamber 14, the side wall of the inlet portion 162 connects seamlessly to the side wall of the supply channel 24.
  • each swirl chamber 14 extends around a chamber axis X.
  • the supply channel 24 comprises at least one straight portion 24' flowing into the swirl chamber 14; this straight portion 24' defines a channel axis Y perpendicular to the chamber axis X.
  • the chamber supply channel 24 is straight for its entire extension.
  • the dispenser nozzle 22 is coaxial to the chamber axis X of the swirl chamber 14 which it extends from.
  • a plurality of identical swirl paths 12 of the water are made in the device body 10 suitable to generate respective jets in the form of vortices, the swirl paths 12 are spaced from each other so that the water jets in the form of a vortex coming out of adjacent dispenser nozzles 22 intersect each other ( Figure 5 ).
  • the chamber supply channels 24 are made in such a way that the directions of rotation of the water flow inside adjacent swirl chambers 14 are opposite to each other, as shown by the arrows in Figure 2 .
  • the directions of rotation of adjacent jets of water at the outlet of the dispenser device are also opposite each other and this entails that in the intersection line between two adjacent jets, the directions of the water concur or are in phase.
  • the interference between adjacent jets is of the "constructive", not “destructive” type as would be the case if the directions of rotation were the same.
  • the combination of the jets of water thus produces a uniform and homogeneous overall jet, the formation of spurts of water and thus the dispersion of the flow directed at the user being prevented.
  • the swirl chambers 14 are evenly distributed along at least one circular crown of the device body 10.
  • the swirl paths 12 are made in the thickness of a swirl plate 102 of the device body 10.
  • the chamber supply channels 24 branch out radially from a central distribution chamber 30 communicating with the water supply pipe and, for example, also made in the thickness of the swirl plate 102.
  • the device body 10 comprises a closing cap 104 superposed on the swirl plate 102 and defining a water inlet passage 106 open onto the central distribution chamber 30 and connectable, for example by means of a threaded connection, to the water supply duct.
  • chamber supply channels 24, without prejudice to their tangential arrangement with respect to the respective swirl chambers 14, may come from other water inlet points in the device, for example from an annular distribution chamber placed around the swirl chamber 14.

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  • Nozzles (AREA)

Description

  • The present invention relates to a dispenser device of jets of water in the form of a vortex, for example for hand showers, shower heads, body sprays i.e. small shower heads placed on one or more sides of the shower. Documents WO 2009/126987 A1 and WO 2016/047252 A1 disclose showerheads according to the prior art.
  • Dispenser devices are already known of suitable to generate one or more water jets in the form of a vortex. Depending on the operating pressure, these jets of water may be particularly gentle on the skin, or, as in the case of the body spray, give a massage-like effect.
  • In some embodiments, the dispenser device generates multiple jets of water in the form of a vortex that intersect each other causing the rupture of the bonds between the water molecules and thereby forming a jet of water spray, also known as "mist".
  • To form the vortex of water, some embodiments of the dispenser device use rotating propeller parts which, when hit by a stream of water, make the flow itself rotate. Other embodiments provide for the use of rotating nozzles oriented so as to be at an angle with each other.
  • All the known embodiments however, require the use of rotating parts and thereby prove complex and expensive to manufacture and more prone to malfunctions or breakage, for example due to the formation of limescale.
  • The purpose of the present invention is to provide a dispenser device of one or more jets of water in the form of a vortex with a particularly compact and simple structure consisting of a reduced number of components, and thus more reliable than those of the prior art.
  • Such purpose is achieved by a dispenser device according to claim 1. The dependent claims describe preferred or advantageous embodiments of the dispenser device according to the invention.
  • The characteristics and advantages of the dispenser device according to the invention will, in any case, be evident from the description given below of its preferred embodiments, made by way of a non-limiting example with reference to the appended drawings, wherein:
    • -figure 1 is a perspective view in axial cross-section of the dispenser device according to the invention;
    • - figure 2 is a top plan view of the swirl plate only of the dispenser device;
    • figure 3 is an axial cross-section of the swirl plate along the line A-A in figure 2;
    • figure 4 is a bottom plan view of the dispenser device; and
    • figure 5 is a side view of the dispenser device in use.
  • In said drawings, reference numeral 1 globally denotes a dispenser device of jets of water in the form of a vortex according to the invention.
  • In a general embodiment, the device 1 comprises a device body 10 in which at least one path to swirl the water 12 is made. In the example shown in the drawings, the dispenser device is provided with eight swirl paths 12, each suitable to generate a corresponding jet of water in the form of a vortex.
  • Each swirl path 12 comprises a swirl chamber 14 with a circular cross-section.
  • The swirl chamber 14 is defined by a side wall 16 extending axially between an inlet end 18 and an outlet end 20 of the water.
  • The outlet end 20 of the water flows into a respective dispenser nozzle 22. The side wall 16 narrows progressively from the inlet end 18 to the outlet end 20.
  • In other words, each swirl chamber 14 consists of a concavity made in the device body 10, having a circular cross-section, progressively decreasing in diameter and from the bottom of which a respective dispenser nozzle 22 extends.
  • For example, even every dispenser nozzle 22 is made in the device body 10 as in a duct, for example having a uniform cross-section.
  • Each swirl chamber 12 further comprises, made in the device body 10, a chamber supply channel 24. This chamber supply channel 24 can be fluidically connected to a water supply pipe and flows into an inlet portion 162 of the side wall 16 of the swirl chamber 14.
  • The chamber supply channel 24 is arranged tangentially relative to the respective swirl chamber 14.
  • As a result, the basic idea of the present invention is to introduce a stream of pressurised water into a swirl chamber 14 in a tangential direction to said chamber, so that the flow of water maintains its speed inside the chamber and, guided by the side wall, forms a vortex. The diameter of the dispenser nozzle 22 is chosen in such a way that the rotation of the water flow is maintained while passing through the dispenser nozzle 22 and translates, upon leaving the nozzle, into a jet with a substantially conical vortex, as shown in Figure 5.
  • For example, the diameter of the dispenser nozzle 22 is between 2 mm and 5 mm, preferably between 3 mm and 4.5 mm.
  • In one embodiment, the maximum size of the cross-section of the supply channel 24, such as its width, is less than the radius of circumference of the swirl chamber 14 at the water inlet end 18.
  • In one embodiment, the supply chamber 14 has, at least in a portion ending with the outlet end 20, a conical or spherical cap or parabolic profile, or a combination of such profiles.
  • In one embodiment, the inlet portion 162 of the side wall 16 has a cylindrical shape. In addition, in one embodiment, each chamber supply channel 14 is defined by side walls parallel to the axis of said cylindrical inlet portion 162. This way, at the inlet point of the supply channel 24 into the respective swirl chamber 14, the side wall of the inlet portion 162 connects seamlessly to the side wall of the supply channel 24.
  • In one embodiment, each swirl chamber 14 extends around a chamber axis X.
  • According to the invention the supply channel 24 comprises at least one straight portion 24' flowing into the swirl chamber 14; this straight portion 24' defines a channel axis Y perpendicular to the chamber axis X.
  • In the example shown, the chamber supply channel 24 is straight for its entire extension.
  • Additionally, in one embodiment, the dispenser nozzle 22 is coaxial to the chamber axis X of the swirl chamber 14 which it extends from.
  • According to the invention a plurality of identical swirl paths 12 of the water are made in the device body 10 suitable to generate respective jets in the form of vortices, the swirl paths 12 are spaced from each other so that the water jets in the form of a vortex coming out of adjacent dispenser nozzles 22 intersect each other (Figure 5).
  • As mentioned in the introduction, the intersection of cone-shaped jets at the outlet of the dispenser device 1 causes a water misting effect.
  • According to the invention the chamber supply channels 24 are made in such a way that the directions of rotation of the water flow inside adjacent swirl chambers 14 are opposite to each other, as shown by the arrows in Figure 2.
  • This way, the directions of rotation of adjacent jets of water at the outlet of the dispenser device are also opposite each other and this entails that in the intersection line between two adjacent jets, the directions of the water concur or are in phase. As a result, the interference between adjacent jets is of the "constructive", not "destructive" type as would be the case if the directions of rotation were the same. The combination of the jets of water thus produces a uniform and homogeneous overall jet, the formation of spurts of water and thus the dispersion of the flow directed at the user being prevented.
  • According to the invention the swirl chambers 14 are evenly distributed along at least one circular crown of the device body 10.
  • In one embodiment shown in the drawings, the swirl paths 12 are made in the thickness of a swirl plate 102 of the device body 10.
  • Moreover, in the embodiment illustrated, the chamber supply channels 24 branch out radially from a central distribution chamber 30 communicating with the water supply pipe and, for example, also made in the thickness of the swirl plate 102.
  • According to the invention the device body 10 comprises a closing cap 104 superposed on the swirl plate 102 and defining a water inlet passage 106 open onto the central distribution chamber 30 and connectable, for example by means of a threaded connection, to the water supply duct.
  • It is clear that the chamber supply channels 24, without prejudice to their tangential arrangement with respect to the respective swirl chambers 14, may come from other water inlet points in the device, for example from an annular distribution chamber placed around the swirl chamber 14.
  • A person skilled in the art may make modifications and adaptations to the embodiments of the dispenser device according to the invention, replacing elements with others functionally equivalent so as to satisfy contingent requirements. The present invention is however defined by the appended claims.

Claims (6)

  1. Dispenser device of a jet of water in the form of a vortex, comprising a device body (10) in which a plurality of swirl path (12) of the water is made, each swirl path (12) comprising a swirl chamber (14) with a circular cross-section comprising a side wall (16) extending axially between an inlet end (18) of the water and an outlet end (20) of the water which flows into a respective dispenser nozzle (22), in which said side wall (16) narrows progressively from the inlet end to the outlet end, and a chamber supply channel (24) fluidically connectable to a water supply pipe and flowing into an inlet portion(162) of the side wall (16) of the swirl chamber (14), said chamber supply channel (24) being placed tangentially to the swirl chamber (14), and wherein the plurality of identical swirl paths (12) of the water are made in the device body (10) suitable to generate respective jets in the form of vortices, said swirl paths being spaced from each other, wherein
    each swirl chamber (14) extends around a chamber axis (X) and is fed by a single chamber supply channel (24), and wherein
    the chamber supply channels (24) are made in such a way that the directions of rotation of the water flow inside adjacent swirl chambers (14) are opposite to each other, each of said supply channels (24) being straight for its entire extension, flowing into the swirl chamber (14) and defining a channel axis (Y) perpendicular to the chamber axis (X), said chamber supply channels (24) branching out radially from a central distribution chamber (30) communicating with the water supply pipe and made in the thickness of a swirl plate (102),
    the device body (10) comprising a closing cap (104) superposed on the swirl plate (102) and defining a water inlet passage (106) open onto the central distribution chamber (30) and connectable, by means of a threaded connection, to the water supply pipe,
    wherein the swirl chambers (14) are evenly distributed along at least one circular crown of the device body (10).
  2. Device according to claim 1, wherein the maximum size of the cross-section of the supply channel (24) is less than the radius of circumference of the swirl chamber (14) at the water inlet end.
  3. Device according to claim 1, or 2 wherein the swirl chamber (14) has, at least in a portion ending with the outlet end (20), a conical profile or a spherical cap profile or a parabolic profile, or a combination of such profiles.
  4. Device according to any of the preceding claims, wherein the inlet portion (162) of the side wall (16) has a cylindrical shape.
  5. Device according to any of the preceding claims, wherein the respective dispenser nozzle (22) is coaxial to the chamber axis (X).
  6. Device according to any of the preceding claims, wherein the swirl paths (12) are made in the thickness of a swirl plate (102) of the device body.
EP17425029.0A 2017-03-13 2017-03-13 Dispenser device of a jet of water in the form of a vortex Active EP3375528B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP17425029.0A EP3375528B1 (en) 2017-03-13 2017-03-13 Dispenser device of a jet of water in the form of a vortex
ES17425029T ES2831775T3 (en) 2017-03-13 2017-03-13 Vortex-shaped water jet dispensing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17425029.0A EP3375528B1 (en) 2017-03-13 2017-03-13 Dispenser device of a jet of water in the form of a vortex

Publications (2)

Publication Number Publication Date
EP3375528A1 EP3375528A1 (en) 2018-09-19
EP3375528B1 true EP3375528B1 (en) 2020-08-19

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EP17425029.0A Active EP3375528B1 (en) 2017-03-13 2017-03-13 Dispenser device of a jet of water in the form of a vortex

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ES (1) ES2831775T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11311894B2 (en) * 2019-09-20 2022-04-26 Xiamen Solex High-Tech Industries Co., Ltd. Water outlet structure for atomized particle water and shower

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016047252A1 (en) * 2014-09-22 2016-03-31 株式会社エンプラス Nozzle plate for fuel injection devices

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05253515A (en) * 1992-01-10 1993-10-05 Flowlight Ind Co Nozzle for spraying water
AUPO080496A0 (en) * 1996-07-03 1996-07-25 Exell Trading Pty Limited Nozzle assembly for a spray head
CH696426A5 (en) * 2003-08-08 2007-06-15 Axenergy Ag Nozzle head.
CN102083542B (en) * 2008-04-17 2014-08-20 Exell科技有限公司 A showerhead

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016047252A1 (en) * 2014-09-22 2016-03-31 株式会社エンプラス Nozzle plate for fuel injection devices

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EP3375528A1 (en) 2018-09-19
ES2831775T3 (en) 2021-06-09

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