EP4240919A1 - Brise-jet - Google Patents

Brise-jet

Info

Publication number
EP4240919A1
EP4240919A1 EP21805927.7A EP21805927A EP4240919A1 EP 4240919 A1 EP4240919 A1 EP 4240919A1 EP 21805927 A EP21805927 A EP 21805927A EP 4240919 A1 EP4240919 A1 EP 4240919A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
water
insert
inlet
jet regulator
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.)
Pending
Application number
EP21805927.7A
Other languages
German (de)
English (en)
Inventor
Marcus DEPAUL
Anton Mairhofer
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.)
BWT Holding GmbH
Original Assignee
BWT Holding 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 BWT Holding GmbH filed Critical BWT Holding GmbH
Publication of EP4240919A1 publication Critical patent/EP4240919A1/fr
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices

Definitions

  • the invention relates to a jet regulator which is designed for the outlet of a water tap and/or a machine for preparing drinks.
  • the invention relates to an aerator through which carbonated water is also dispensed.
  • the invention also relates to a faucet, water dispenser or machine for preparing beverages provided with the aerator according to the invention.
  • So-called jet regulators are attachments that form the so-called “point of use” on a tap or water dispenser, for example, i.e. the water outlet.
  • a stream that is as uniform as possible should be emitted via the water outlet, which jets as little as possible when it hits a container below the outlet or a sink.
  • Jet regulators of this type are often also used to save water and include a throttle device.
  • aerators which are available as jet regulators on most household fittings.
  • the screen discs homogenize the water jet and the water mixes with air through the air gap so that, among other things, the mass of the jet decreases in relation to its diameter.
  • Such measures can reduce the tendency of the jet to spatter when it hits a surface.
  • the object of the invention is to provide an aerator in which the stated disadvantages of the prior art are at least reduced. It is in particular an object of the invention to provide a jet regulator in which the spattering when the jet hits a surface is reduced and/or which is visually appealing, in particular has a circular-cylindrical, uniform appearance as possible.
  • the invention relates to an aerator for the outlet of a faucet or beverage dispenser.
  • the invention relates to an aerator which is used for a beverage dispenser, in particular a water dispenser, via which water enriched with carbonic acid can also be dispensed.
  • the invention generally relates to an aerator, which can also be used for all types of fittings.
  • the jet regulator can be provided with a standard internal or external thread (e.g. M16-M24) and used instead of a conventional aerator, which is designed to enrich the jet with air.
  • the aerator includes an outer sleeve and an insert seated within the sleeve.
  • the insert is aligned coaxially with the sleeve.
  • annular channel within the meaning of the invention is also understood to mean an outlet which is only partially designed as a ring, ie in particular a ring segment, or which is subdivided into ring segments.
  • the outlet is preferably an uninterrupted ring channel, that is to say a ring channel through which no webs run.
  • an expansion chamber which extends around the insert, is arranged between an inlet of the jet regulator and the ring channel.
  • the expansion chamber can in particular be ring-shaped.
  • an expansion chamber is understood to mean an area in the flow path in which the total cross section of the flow path between the inlet and outlet of the jet regulator increases compared to a previous section, in particular in the inlet area.
  • the expansion chamber is arranged in particular between a channel arranged at the inlet with a smaller overall cross section, which can also be understood as the inlet for the expansion chamber, and the outlet.
  • Expansion chambers are generally used to influence the flow behavior of gases, which, unlike water, are compressible.
  • the volume of the liquid in contrast to a gas and at least if no carbonated water is used, the volume of the liquid cannot increase appreciably.
  • the pressure within the expansion chamber can be kept very low up to the outlet, in particular reduced to almost atmospheric pressure, since the water accelerates before being introduced into the expansion chamber due to the small cross-section of an inlet to the expansion chamber in the area of the inlet will.
  • the inlet to the expansion chamber therefore has both a smaller cross-section than a water inlet of the aerator (e.g. a screw connection) and a smaller cross-section than the expansion chamber.
  • aerator e.g. a screw connection
  • the jet regulator according to the invention can in particular be designed in such a way that when the line pressure is 5 bar, the pressure within the expansion chamber is less than 1.5 bar (under standard conditions and a water temperature of 20° C.).
  • the arrangement of the expansion chamber around the insert also ensures a compact design.
  • the jet regulator can be provided as an essentially circular-cylindrical sleeve. In terms of its dimensions, this cannot differ significantly from a conventional aerator.
  • the ratio of the diameter to the height of the sleeve can be greater than 1. Due to the smaller cross-section on the flow side in front of the expansion chamber, the water is fed into the expansion chamber at a high speed, depending on the line pressure present.
  • the flow slows down to a turbulent flow. Due to the low pressure, the turbulent flow on the outlet side can in turn be converted into a laminar flow in a simple manner, in particular by using an inner sleeve with a conically shaped collar which extends around a conically shaped head piece of the insert.
  • the insert is designed to taper conically.
  • the insert is designed as a flow throttle.
  • the minimum cross-section of the aerator is therefore reduced compared to the cross-section of the connection piece to the water pipe for which the aerator is used.
  • the inlet leads through a central channel which leads into a counter-rotating annular channel extending upwardly between the central channel and the insert.
  • the insert is therefore pot-shaped with a blind hole into which the central channel protrudes and thus forms a flow reversal in cooperation with the insert.
  • the water is thus guided to the bottom of the insert, then directed upwards, in particular via a ring channel, and then enters the expansion chamber arranged around it.
  • This embodiment of the invention is particularly advantageous for dispensing carbonated water.
  • the water is conducted into the expansion chamber through a lateral inlet, in particular through an annular channel, or from above. Especially in the case of a 3-way fitting, dripping is usually also avoided by a negative pressure that occurs in the fitting.
  • the embodiment in which water is conducted into the expansion chamber through the lateral inlet is particularly suitable for such a fitting.
  • the inlet piece can in particular comprise a plate which forms a gap, in particular an annular gap, adjacent to the inner wall of the sleeve.
  • the annular gap can be formed in particular by a large number of inlet openings distributed around the circumference.
  • the pressure distribution of the water flowing into the jet regulator can be homogenized via this plate, in particular if it is structured, in particular if it has webs. This is particularly advantageous when there are flow deflections, such as elbows, directly in front of the outlet.
  • the cross-sectional area between an area with a minimum cross-section at or after the inlet increases compared to an area of the expansion chamber with a maximum cross-section preferably at least twice, particularly preferably at least 5-fold and/or less than 100-fold, more preferably less than 50 times.
  • the outlet according to one embodiment of the invention comprises a ring with axially extending insert spacers.
  • the spacers can in particular be designed as webs distributed around the circumference of a collar, in particular a conical collar.
  • the jet regulator comprises an outer sleeve, an inner sleeve, the insert and an inlet piece, these components being caught in the outer sleeve and positioned relative to one another by spacers integrated into the corresponding components.
  • a material connection between the components can thus be dispensed with and the jet regulator can be produced in a simple manner.
  • the area up to the outlet is reduced to a minimum cross-sectional area, which in particular is 0.1 to 0.8 times the maximum cross-sectional area in the expansion chamber.
  • This cross-sectional reduction can be provided in particular by the fact that an annular channel between the sleeve and the insert, which initially forms the expansion chamber, is reduced in diameter by the insert being a has a conical head piece, which faces a conically inclined collar of the sleeve, which forms the end face of the sleeve.
  • the sleeve can have an outer diameter of 10 to 40 mm, preferably 15 to 25 mm.
  • jet regulator can also be provided for applications in particular in the industrial sector.
  • the jet regulator includes a UV light source. This can be arranged, for example, in the inlet piece and serves to disinfect the jet regulator or the residual water adhering to the jet regulator.
  • the jet regulator according to the invention is superior to aerators from a hygienic point of view, since the total surface area is significantly smaller than aerators with, for example, honeycomb or latticed sieve surfaces.
  • the aerator can be dimensioned in such a way that, with a pressure of 6 bar at the inlet, both with water at 20 °C, water at 20 °C with 6 g/l carbon dioxide and at water at 60 °C (and otherwise under standard conditions) the Reynolds number Re of the exiting water is below 2,300, preferably below 2,000.
  • an aerator could be provided that is equally suitable for warm water, in particular even water that is used to prepare tea and can have 80 °C or more, and which can also be used with carbonated water at the same time.
  • the aerator according to the invention can be used, for example, for water dispensers, machines for preparing drinks, in particular for preparing hot and cold drinks.
  • the invention also relates to a faucet, a water dispenser and a machine for preparing drinks, which incorporates the aerator described above. This is preferably connected via a threaded connection to a fitting or machine-side water outlet.
  • FIGS. 1 to 12 are perspective views of an embodiment of an aerator according to the present invention.
  • Fig. 2 is a longitudinal section of the jet regulator.
  • 3 and 4 are perspective views of the outer sleeve.
  • 5 and 6 are perspective views of the inner sleeve.
  • Figures 7 and 8 are perspective views of the insert.
  • 9 and 10 are perspective views of an inlet piece.
  • Figure 11 is a perspective view of a ring that holds the components of the aerator in place.
  • Figure 12 is a perspective view of the top of the aerator.
  • FIG. 1 shows a perspective view of an exemplary embodiment of a jet regulator 1 which is connected to a water connection 2 .
  • the water connection 2 can, for example, be part of a water dispenser or a machine for preparing drinks or the end piece of a water tap.
  • Such outlets are usually tubular and emit a turbulently flowing, inhomogeneously designed water jet, which, among other things, has a strong tendency to splash when it hits an adjacent surface.
  • the task of the aerator 1 is to convert the exiting water into a visually appealing, as circular-cylindrical jet as possible, which tends to splash only slightly when it hits a surface.
  • the jet regulator 1 can be the aim of the jet regulator 1 to use a throttle to reduce the flow rate when the water tap is turned on and thus contribute to saving water.
  • the jet regulator 1 in this exemplary embodiment comprises an upper part 60, which is designed as a handle with which the jet regulator 1 can be easily attached.
  • the jet regulator 1 is completely, essentially circular-cylindrical and is used in particular to replace conventional aerators on a water tap.
  • the jet regulator 1 has a sleeve-like outer contour.
  • the sleeve comprises an outer sleeve 10 and an inner sleeve 20.
  • a homogeneous water jet which has a laminar flow, leaves the jet regulator 1 via a ring channel 3.
  • the annular channel 3 is formed between a coaxially arranged insert 30 with a conical head piece and a collar 21 which forms the front end wall of the inner sleeve 20 .
  • the collar 21 runs conically forwards, at least on the inside, preferably substantially parallel to the opposite wall of the insert 30, which is conically designed at the front.
  • the ring channel 3 the end of which forms the outlet, is designed to taper conically towards the front.
  • 2 is a longitudinal section of the aerator 1 including the water connection 2. All the components of the aerator 1 are shown in this illustration.
  • the possible water flow is marked with arrows.
  • the jet regulator 1 is connected to the water connection 2 by means of the upper part 60 .
  • the water enters an expansion chamber 6 via two flow paths.
  • the jet regulator is designed in such a way that the water only enters the expansion chamber 6 via one of the flow paths shown.
  • the seal 4 is located between the water connection 2 and the upper part 60.
  • the upper part 60 and the inlet piece 40 can also be designed as a single component.
  • the water flows via the inlet 7 through the jet regulator 1 designed as a sleeve and leaves the jet regulator 1 at the outlet 3.
  • the sleeve comprises an outer sleeve 10 and an inner sleeve 20.
  • the outer sleeve 10 is connected to the upper part 60 via a thread 12 .
  • the components of the jet regulator 1 for jet shaping are arranged one after the other between the upper part 60 and a collar 11 on the front side of the outer sleeve 10 .
  • the inner sleeve 20 sits with its end face on the collar 11 of the outer sleeve 10 . All of these components are preferably inserted into the outer sleeve 10 without having to be welded or glued to one another.
  • the outer sleeve 10 can be made of metal or plastic.
  • the other components of the jet regulator 1, in particular the insert 30 and the inlet piece 40 are preferably designed as plastic injection molded parts.
  • the water flowing in from the inlet 7 is conducted into the expansion chamber 6 via the inlet piece 40, with two flow paths being possible, in particular depending on the embodiment, which, however, can also be combined with one another, as shown here.
  • the expansion chamber 6 is designed as an annular channel, which is arranged between the coaxial insert 30 and the sleeve, more precisely the inner sleeve 20 .
  • inflowing water can get into the expansion chamber 6 via a lateral inlet 8 .
  • the inlet piece 40 can be designed with one or more edge-side openings, so that water can flow into the expansion chamber 6 via a lateral inlet 8 which comes from a large number of openings distributed around the circumference.
  • This flow control is particularly well suited when no carbonated water is to be dispensed.
  • the inlet piece 40 comprises a central channel 41 which is preferably aligned coaxially.
  • the insert 30 is pot-shaped and includes a blind hole 30 on the inside, into which the central channel 41 leads.
  • the central channel 41 protrudes into the blind hole 31 so that the interaction of the central channel 41 and the blind hole 31 forms a flow reversal, which leads into the channel 5 .
  • this has the advantage that residual water can move back down along the blind hole 31 when the water pressure is switched off, which generally prevents dripping at the outlet 3 .
  • the expansion chamber 6 is ring-shaped. Due to the relatively high speed of the inflowing water, a turbulent flow initially occurs within the expansion chamber 6 when the water enters the expansion chamber 6 .
  • the annular channel of the expansion chamber 6 then merges up to the outlet 3 into a section in which, due to the conical design of the insert 30 and the collar 21, which also runs conically forward, the diameter and thus also the total cross-sectional area of the annular channel gradually increase up to the outlet 3 continuously reduced.
  • the jet that emerges does not have a milky, but a crystal-clear optical appearance and, due to the laminar flow, has a circular-cylindrical shape.
  • the aerator 1 is also suitable for dispensing hot water, cold water and carbonated water.
  • the jet regulator 1 can be configured with a UV light source for killing germs.
  • components of the jet regulator in particular the insert 30, the inner sleeve 20 and/or the inlet piece 40, can be made from a UV-transmissive material, in particular from a UV-transmissive plastic.
  • Inlet piece 40, insert 30 and inner sleeve 20 are arranged axially one after the other in this exemplary embodiment and are designed in such a way that these components are spaced apart from one another due to spacers such that the corresponding channels for water flow are present.
  • the central channel 41 is provided on its upper side in this embodiment with a ring 50 which serves as a spacer.
  • FIG. 3 is a perspective view of the outer sleeve 10.
  • the outer sleeve 10 includes the collar 11 on its underside, which serves as a stop for the inner sleeve (20).
  • FIG. 5 is a perspective view of the inner sleeve 20 viewed from the direction of flow, that is, from the rear.
  • the inner sleeve 20 is pot-shaped with a central opening in the bottom. Accordingly, the inner sleeve 20 comprises a front collar 21.
  • the collar 21 On the inside, ie in the direction of the insert, the collar 21 comprises a multiplicity of spacers 22 which are distributed around the circumference of the collar and on which the insert (30) rests in the assembled state.
  • the spacers 22 are designed as axially extending webs. This can improve the formation of a laminar flow.
  • FIG. 6 is a perspective view of the opposite side of inner sleeve 20.
  • the side wall of the inner sleeve 20 runs obliquely, ie conically towards the front, in particular at an angle of 2 to 8° to the central axis.
  • This configuration contributes to a gradual slight reduction in the diameter of the expansion chamber towards the outlet, which improves the formation of a laminar flow.
  • axially running webs 23 are provided on the side wall.
  • the webs 23 merge into the conical collar 21 at the end via a transition web 24 .
  • This configuration has the function of a visually beautiful technical appearance.
  • a conical configuration of the collar 21 on the inside is sufficient for guiding the flow, so that the area between the transition webs 24 can also be filled with material in another embodiment (not shown).
  • FIG. 7 is a perspective view of the insert 30 as viewed from the rear, that is, from the direction of flow.
  • the insert 30 includes the blind hole 31 tapering at the front.
  • the webs 33 standing in the axial direction are distributed around the circumference and serve to connect to the inlet piece.
  • FIG. 8 is a perspective view of the insert 30 from the side.
  • the insert 30 is conical at the front and begins with a rounded head piece 34.
  • the side wall of the insert 30 preferably runs at an angle of 30 to 60°, particularly preferably 40 to 50°, to the central axis.
  • the transition region 35 is not formed exactly in the shape of a truncated cone, but comprises an indentation 37 within which the angle of the side wall relative to the central axis changes.
  • the angle of the side wall thus becomes steeper towards the outlet, which improves the formation of a laminar flow.
  • the transition area 35 merges into a body piece 36 via a rounded area 38 .
  • the body piece 36 is slightly conical, in particular the side wall of the body piece 36 is at an angle of 3 to 15° to the central axis.
  • the taper of the sidewall of the body piece 36 may correspond to the slope of the sidewall of the inner sleeve in this area.
  • FIG. 9 is a perspective view of the inlet piece 40.
  • the inlet piece 40 includes a central channel 41 which opens in the insert (30).
  • the inlet piece 40 is disc-shaped and includes the annular disc 42, which has channels 44 on the edge, through which part of the water can also flow directly on the edge, without flowing over the insert, into the expansion chamber. If this is not desired, the channels 44 can also be omitted (not shown).
  • the ring disk 42 can be structured.
  • a structure is provided by webs 43 running in a star shape.
  • FIG. 10 is another perspective view of the inlet piece 40.
  • the central channel 41 merges into a section with a coupling piece 45, which comprises axially extending grooves 46 and recesses 47 on the sides at the front. With the grooves 46, the central channel is pushed onto the axial webs 33 shown in FIG.
  • Water can flow into the blind hole (31) of the insert via the recesses 47 on the edge.
  • This water then flows (through the channel 5) upwards to the annular disc 42 and is introduced from there into the expansion chamber from the inside.
  • FIG. 11 is a perspective view of the ring 50 which serves as a spacer between the inlet piece and the top portion 60 shown in FIG.
  • the upper part 60 includes the thread 62, via which the upper part 60 is connected to the outer sleeve.
  • radially protruding handles 61 are provided in this exemplary embodiment, which make it easier to screw in the jet regulator.
  • the invention made it possible to provide an aerator which is particularly suitable for carbonated and hot water.
  • the jet regulator made it possible to provide an optically attractive jet with a low tendency to spatter in a surprisingly simple and efficient manner.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Nozzles (AREA)

Abstract

L'invention concerne un brise-jet pour l'orifice de sortie d'un robinet d'eau ou d'un distributeur de boisson, comprenant un manchon externe et un insert conique logé dans le manchon. Entre l'insert et le manchon se trouve un canal annulaire qui forme l'orifice de sortie. Entre un orifice d'entrée et le canal annulaire est placée une chambre d'expansion qui s'étend autour de l'insert.
EP21805927.7A 2020-11-04 2021-11-03 Brise-jet Pending EP4240919A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020129021.7A DE102020129021A1 (de) 2020-11-04 2020-11-04 Strahlregler
PCT/EP2021/080476 WO2022096488A1 (fr) 2020-11-04 2021-11-03 Brise-jet

Publications (1)

Publication Number Publication Date
EP4240919A1 true EP4240919A1 (fr) 2023-09-13

Family

ID=78592854

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21805927.7A Pending EP4240919A1 (fr) 2020-11-04 2021-11-03 Brise-jet

Country Status (4)

Country Link
US (1) US20230332388A1 (fr)
EP (1) EP4240919A1 (fr)
DE (1) DE102020129021A1 (fr)
WO (1) WO2022096488A1 (fr)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832643A (en) 1954-02-15 1958-04-29 Ralph E Bletcher Flow regulator
US4221337A (en) 1979-01-17 1980-09-09 Shames Sidney J Aerator and spray combination
US5549822A (en) 1995-01-13 1996-08-27 Ferguson; George E. Shower filter apparatus
DE20022166U1 (de) * 2000-12-20 2001-06-21 Huthmann Otto Vorrichtung zum Regeln der Durchflußmenge eines fluiden Mediums
US7581685B2 (en) 2007-07-19 2009-09-01 Christian Belisle Faucet end piece
DE102010007871B4 (de) 2010-02-13 2015-02-05 Neoperl Gmbh Strahlregler
US9421561B2 (en) 2014-03-31 2016-08-23 Toto Ltd. Water spouting device
DE102014006216A1 (de) 2014-04-30 2015-11-05 Neoperl Gmbh Strahlregler
DE202014003568U1 (de) * 2014-04-30 2015-07-31 Neoperl Gmbh Strahlregler
DE102015002740A1 (de) * 2015-03-05 2016-09-08 Neoperl Gmbh Strahlregler
CN204781152U (zh) 2015-06-02 2015-11-18 厦门水蜻蜓卫浴科技有限公司 出水控制装置

Also Published As

Publication number Publication date
DE102020129021A1 (de) 2022-05-05
WO2022096488A1 (fr) 2022-05-12
US20230332388A1 (en) 2023-10-19

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