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
  • E03C1/084—Jet regulators with aerating means
• • 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 with at least one jet splitter that divides the inflowing water flow, with a sleeve-shaped inner housing that is encased by an outer housing, and with at least one ventilation channel arranged between the inner housing and the outer housing, the at least one inlet opening and at least one on the housing circumference Inner housing has provided passage opening.
• the previously known device has a central supply channel for the liquid which runs along the device axis.
• a plurality of vortex chambers are provided around the device axis, each having an inlet for feeding the liquid into the respective vortex chamber and an outlet nozzle for the exit of a liquid jet from the vortex chamber.
• the vortex chambers are connected to the supply channel via inlet channels which are arranged essentially transversely to the device axis.
• Each of the outlet nozzles is arranged at an angle to the longitudinal axis of the device that jets of liquid emerging from the outlet nozzles meet at a predetermined distance from the outlet nozzles.
• the jet pattern of the water jet emerging from the previously known device is, however, still in need of improvement.
• An atomizer nozzle has therefore also been created which can also be mounted on the water outlet of a sanitary outlet fitting in order to atomize the water flowing in under pressure and thereby shape it into a homogeneous water jet (cf. DE 20 2013 002 283 Ul).
• the already known The atomizer nozzle has a swirl chamber in which at least one feed channel oriented transversely to the nozzle longitudinal axis and entering the swirl chamber tangentially in such a way that the water flowing into the swirl chamber experiences a swirl around the swirl chamber longitudinal axis opens.
• the swirl chamber tapers in the outflow direction towards a nozzle channel, so that the water jet set in rotation around the swirl chamber longitudinal axis in the swirl chamber is brought together in ever smaller circular paths and guided through the nozzle channel until the water jet is released into the atmosphere at the end area of the nozzle channel exits, where a fluid lamella forms, which bursts into such fine individual droplets at its free peripheral edge area that a homogeneous water jet formed from fine water droplets is created.
• An economy shower head is known from DE 10 2006 013 881 A1 which, with the aid of water eddies, forms a water / air mixture in conjunction with the ambient air sucked in by the eddy.
• the previously known economy shower head has a housing with a centrally arranged air inlet which is surrounded by a concentrically, conically or hyperbolically shaped water outlet panel with holes.
• the previously known economy shower head is connected to a pressurized water pipe via an inlet pipe.
• a control panel is provided in this inlet pipe, which forms the inflowing water into an upside-down hyperbolic water vortex.
• This water vortex creates a negative pressure in the housing of the previously known economy shower head, which causes ambient air to be sucked into the housing via the central air inlet. This air is supplied to the water flowing through the housing through the water outlet panel.
• the water mixed with ambient air leaves the previously known economy shower head via the holes in the water outlet panel in the form of short, line-like water structures that are filled with air gaps.
• the user has the feeling of being under an uninterrupted water jet.
• a homogeneous and pearly soft outlet jet cannot be formed in the previously known economy shower head.
• the jet regulator according to the invention which can be mounted on the water outlet of a sanitary outlet fitting, has at least one jet splitter that divides the inflowing water jet and breaks it down into small water particles or water jets.
• the jet regulator according to the invention has a sleeve-shaped inner housing which is enclosed by an outer housing.
• at least one ventilation channel is arranged between the inner housing, which forms a water-conducting line section, and the outer housing, through which the for mixing with the water flowing through the inner housing can be sucked in certain ambient air.
• the at least one ventilation channel has an inlet opening and at least one passage opening which is provided on the housing circumference of the inner housing and through which the ambient air coming from the ventilation channel can flow into the interior of the inner housing.
• the at least one jet splitter of the jet regulator according to the invention is designed as a jet atomizer nozzle which atomizes the inflowing water flow into a spray of fine droplets (mist) and generates an aerosol of fine droplets mixed with ambient air, which forms a hollow cone-shaped jet from separated liquid components in the inner housing.
• the atomizer nozzle serving as a jet splitter is characterized by good jet division and splitting, even with a comparatively low flow rate.
• a ring-shaped encircling impact zone is arranged on the inner circumference of the inner housing, in which the hollow cone-shaped split water jet occurs on the inner circumference of the inner housing.
• the interior of the inner housing serves as a mixing chamber in which the hollow cone-shaped split water jet is additionally mixed with the ambient air coming from the at least one passage opening before the air-mixed water jet in the flow direction after the impact zone again becomes a pearly-soft outlet jet with a homogeneous, cylindrical outer circumference is shaped.
• the water droplets emerging from the atomizer nozzle as a fine mist, which are contaminated with germs and can pose a health risk when inhaled, are thus formed in the inner housing in the direction of flow below the impact zone into a homogeneous and therefore harmless jet.
• the ventilation duct is designed as an annular gap arranged between the inner housing and the outer housing.
• a preferred development according to the invention provides that at least one cross-sectional constriction is formed in the at least one ventilation duct.
• the at least one ventilation channel formed in the area between the inner and outer housing reduces the transmission of the background noise caused by the water flowing through.
• the at least one cross-sectional constriction provided in the at least one ventilation duct forms a sound obstacle which additionally reduces the transmission of these interfering noises to the outside.
• the at least one cross-sectional constriction is arranged below the at least one passage opening in the flow direction of the water jet flowing through the jet regulator.
• a preferred embodiment according to the invention provides that the inner housing tapers or narrows, preferably in steps, towards its outlet end face.
• This provided on the inner circumference of the inner housing at least one step can around the Circumferential housing inner circumference or segmented or interrupted.
• Other projections, which protrude from the inner circumference of the inner housing into its housing interior, are also conceivable as flow obstacles promoting the mixing of water and ambient air.
• the at least one perforated plate has holes whose maximum width is in Compared to the width of the flow straightener flow holes is smaller.
• a simple and expedient embodiment according to the invention provides that the at least one perforated plate is inserted into the housing interior of the inner housing and is preferably placed on the flow straightener.
• the outer housing has a coupling on its inflow-side housing circumference which cooperates with a mating coupling on the water outlet of the sanitary outlet fitting.
• a particularly simple and advantageous embodiment according to the invention can consist in that the coupling provided on the outer housing is designed as a thread which interacts with a mating thread on the water outlet of the sanitary outlet fitting.
• the construction and manufacture of the jet regulator according to the invention is significantly simplified if the inner housing has at least one insertion stop on the outer circumference, and if the inner housing can be inserted into the outer housing until the insertion stop rests on a support provided on the inner circumference of the outer housing.
• a preferred embodiment according to the invention provides that the insertion stop is designed as a segmented or circumferential annular shoulder.
• the positionally accurate arrangement of the unit formed from the jet decomposer and inner housing in the outer housing of the jet regulator according to the invention is favored if the inlet-side end face of the as a cross-sectional constriction serving ring flange serves as a support for the at least one insertion stop.
• the inlet opening of the at least one ventilation channel is provided on the outlet side of the jet regulator.
• a preferred embodiment according to the invention also provides for this purpose that the outlet-side end edge region of the outer housing is angled in the direction of the inner housing and / or the inner housing is angled in the direction of the outer housing.
• the inlet opening has a reduced cross-section compared to the clear channel cross-section of the ventilation channel in the channel section following in the direction of flow, which makes the exit of the noise reflected in the ventilation channel even more difficult and a low-noise operation of the jet regulator according to the invention is additionally promoted.
• the assembly of the jet regulator according to the invention is significantly simplified and the cohesion of the components forming the jet regulator according to the invention during storage and transport is promoted if the jet splitter can be connected to the inner housing on the inflow end face of the inner housing and can preferably be detachably latched.
• the jet splitter designed as an atomizer nozzle has a swirl chamber in which at least one feed channel oriented transversely to the longitudinal axis of the nozzle and preferably entering the swirl chamber tangentially opens, that each feed channel is preceded by at least one inlet channel in the flow direction, and that the swirl chamber extends in the outflow direction towards tapers to a nozzle channel, at whose channel end area the water jet exits into the inner housing.
• FIG. 3 shows the unit formed from the jet splitter and the inner housing from FIGS. 1 and 2 in a longitudinal section likewise angled along the longitudinal center axis
• FIGS. 1 to 3 shows a detailed longitudinal section of the unit shown in FIGS. 1 to 3 in the area of the outlet end face of the inner housing
• Fig. 5 the jet regulator formed using the unit shown in FIGS. 1 to 4, the unit formed from the jet splitter and the inner housing being surrounded here by an outer housing that can be mounted on the water outlet of a sanitary outlet fitting, and the jet regulator here in a plane lying in the drawing Longitudinal section is shown, and
• FIGS. 1 to 4 Perspective representation of its components shown and formed from a jet splitter and an inner housing connected downstream in the flow direction according to FIGS. 1 to 4, which is used in the jet regulator according to FIG. 5.
• the at least one ventilation channel 5 has at least one inlet opening 6 and at least one passage opening 7 which is provided on the housing circumference of the inner housing 3 and through which the ambient air coming from the ventilation channel 5 can flow into the housing interior of the inner housing 3 serving as a mixing chamber.
• the at least one jet splitter 2 of the jet regulator 1 is designed as an atomizer nozzle which divides the inflowing water flow into an essentially hollow cone-shaped water jet and which is characterized by good jet division and breakdown even with a comparatively low flow rate.
• the atomizer nozzle serving as a jet splitter 2 has a nozzle body 8 which can be connected to the inner housing 3 on the inlet-side end edge of the inner housing 3 and can preferably be latched.
• a swirl chamber 9 is provided, which on the inflow side has a chamber section 10 which is essentially cylindrical or disk-shaped in its clear cross section.
• the swirl chamber 9 tapers in a funnel shape in the outflow direction towards a nozzle channel 12.
• the funnel-shaped section of the swirl chamber 9 is designed in its clear cross section so that the swirl chamber 9 has the shape of a conical or rotationally hyperbolic funnel in the direction of the nozzle channel 5.
• the atomizer nozzle serving as jet splitter 2 has an insertion opening 13 on the inflow side in its nozzle body 8.
• this insertion opening 13 On the peripheral wall of this insertion opening 13 is provided with at least one groove 14 intended to form an inlet channel 30.
• An inlet channel 30 oriented in the longitudinal direction of the nozzle is connected upstream of each feed channel 11 in the flow direction.
• a plug 15 can be inserted into the insertion opening 13 up to a circumferential annular shoulder 16.
• the annular shoulder 16 is interrupted by at least one groove 29, which is provided to form a feed channel 11. While the outer circumference of the plug 15 closes the at least one groove 14 to form an inlet duct 30, the end face of the plug 14 closes the at least one groove 11 along the length of a feed duct 11.
• the plug On the end face of the plug 15 facing the swirl chamber 9, the plug has a depression 17 on. In FIGS.
• the nozzle body 8 can be connected, and preferably latched, to an attachment or filter screen 18 on its inlet side ZS.
• This attachment screen 18 filters out the dirt particles and limescale residues carried along in the incoming water flow, which could otherwise impair the function of the jet regulator 1.
• the atomizer nozzle serving as jet splitter 2 divides the inflowing water flow, this water flow being atomized into a spray of fine droplets (mist) and an aerosol being formed from fine droplets mixed with ambient air.
• This spray, formed from fine droplets, emerges from the atomizer nozzle as a hollow cone-shaped jet, which is formed from separated liquid components.
• This hollow cone-shaped water jet is indicated in FIG. 2 by dashed lines 31.
• the ventilation duct 5 is designed as an annular gap arranged between the inner housing 3 and the outer housing 4. This annular gap can run around the inner housing 3 and / or also be segmented at least in a partial area of the longitudinal extent of the channel.
• at least two, and preferably several, passage openings 7, spaced apart at equal intervals, are provided on the circumference of the inner housing 3.
• at least one cross-sectional constriction 20 is formed in the at least one ventilation channel 5.
• This cross-sectional constriction 20 is designed here as an annular flange projecting on the inner circumference of the outer housing 4.
• the cross-sectional constriction 20 is arranged in the flow direction of the water jet flowing through the jet regulator 1 below the at least one passage opening 7 and thus in the inflow direction of the ambient air in the ventilation channel 5 in front of the passage openings 7.
• the inlet opening 6 of the at least one ventilation channel 5 is arranged on the outlet side of the jet regulator 1.
• the outlet-side end edge region of the outer housing 4 is also angled in the direction of the inner housing 3.
• the inlet opening 6 has a reduced cross section compared to the clear channel cross section of the ventilation channel 5 in the channel section following in the flow direction of the ambient air guided in the ventilation channel 5, so that the exit of the interfering noises reflected in the ventilation channel 5 makes it even more difficult and low-noise operation of the jet regulator according to the invention 1 is additionally benefited.
• the inner housing 3 tapers in a step-like manner towards its outlet end face.
• the steps provided on the inner circumference of the inner housing 3 can - as here - run around the inner circumference of the housing or also be segmented or interrupted.
• There A good mixing of air and water is already promoted if at least one such step 21 is provided on the housing inner circumference of the inner housing 3.
• a diaphragm 32 In the housing interior of the inner housing 3, a diaphragm 32, indicated in FIG. 5 by dash-dotted lines, can be provided, which is arranged in the flow direction oriented from the inlet side ZS to the outlet side AS at a preferably small distance below the passage openings 7.
• This aperture 32 has a central opening which limits the clear cross section of the inner housing 3 in this area to the opening cross section of the aperture 32.
• the screen 32 is preferably designed as a perforated disk which is inserted into the inner housing 3. The screen 32 divides the housing interior of the inner housing 3 into an air inlet space located in the area of the passage openings 7 and into a mixing chamber provided below the screen 32.
• the opening of the diaphragm 32 encloses the water jet coming from the atomizer nozzle and exiting there in the shape of a hollow cone, preferably at a distance.
• the screen 32 prevents aerosols or collision water, which can arise when the water hits the inner housing, from escaping through the passage openings 7.
• a flow straightener 22 is provided which equalizes the water flowing through the inner housing 3 and mixed with ambient air in the outlet direction.
• This flow straightener 22 has a lattice, honeycomb or - as here - network structure with flow-guiding throughflow holes 23. At least the majority of the throughflow holes 23 have a longitudinal extent in the throughflow direction which is greater than the maximum width of these throughflow holes 23.
• the flow straightener 22 is formed on the inner circumference of the inner housing 3.
• the through-flow holes 23 are arranged and designed such that the water jet recombines downstream to form a uniform outlet jet.
• the flow straightener 22 is preceded by at least one perforated plate 24 in the flow direction, which has holes 25, the maximum width of which is smaller in comparison to the width of the flow holes 23 of the flow straightener 22.
• the perforated plate 24 here has a lattice structure delimiting the holes 25.
• the at least one perforated plate 24 is inserted into the housing interior of the inner housing 3 and preferably placed on the flow straightener 22.
• the inner housing 3 has at least one insertion stop 26, the inner housing 3 being insertable into the outer housing 4 until this at least one insertion stop 26 rests on a support provided on the inner circumference of the outer housing 4.
• the inlet-side end face of the annular flange 20 serving as a cross-sectional constriction serves as a support here.
• the insertion stop 26 is designed here as a segmented annular shoulder on the outer circumference of the inner housing 3.
• the jet regulator 1 has a single and preferably central jet splitter 2.
• the longitudinal axes of the Beam splitter 2, the inner housing 3 and the outer housing 4 are arranged coaxially to one another.
• the jet splitter 2 can be releasably connected to the inner housing 3 on the inlet-side end face of the inner housing 3 and can preferably be releasably latched.
• the jet aerator 1 shown here is distinguished by its reliable functioning even with very low flow classes and capacities.
• a central atomizer nozzle is used as the jet splitter 2.
• this atomizer nozzle a hollow conical water jet is formed, which is used as a mixing chamber
• the interior of the inner housing 3 flows in and strikes the inner housing 3 in the impact zone 19 on the inner circumference.
• the hollow cone-shaped water jet emerging from the jet splitter 2 hardly shows any
• the housing section is dimensioned to be sufficiently long so that the water accumulating at the outlet end of the inner housing 3 in the area of the flow straightener 22 cannot back up into the area of the impingement zone 19. A paragraph at the downstream end of the inner housing 3 can

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

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Publications (1)

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Citations (6)

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• 2019
  • 2019-03-08 DE DE202019101312.5U patent/DE202019101312U1/de active Active
• 2020
  • 2020-02-03 EP EP20704444.7A patent/EP3935229B1/de active Active
  • 2020-02-03 WO PCT/EP2020/052530 patent/WO2020182369A1/de active Application Filing
  • 2020-02-03 CN CN202080019553.5A patent/CN113544348B/zh active Active
  • 2020-02-03 US US17/437,136 patent/US20220170249A1/en active Pending

Patent Citations (6)

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