Jet regulator

Abstract

A jet regulator ( 104 ) including a jet regulator housing ( 1 ) having an outer thread ( 2 ) on the outer circumference of the housing for screwing into an internal thread ( 3 ) in the water outlet ( 4 ) of a sanitary outlet fitting. The jet regulator housing ( 1 ) has a thread profile as an outer thread ( 2 ) on the housing outer circumference, deviating at least in sections from a thread groove that is continuously spiraling around a cylindrical wall, which outer thread cooperates in this region in a self-adapting manner with the internal thread ( 3 ) provided in the water outlet ( 4 ) and/or has at least one cross-sectional widening ( 6, 7 ) which is made of the same material as the housing section of the jet regulator housing ( 1 ) supporting the outer thread ( 2 ) and which is integrally formed thereon, and which can be sealingly placed on the water outlet ( 4 ) on the end side and/or on the inner circumference side.

1 . A jet regulator ( 101 ,  104 ,  111 ,  115 ) comprising:
 a jet regulator housing ( 1 ) having a housing outer circumference on which an outer thread ( 2 ) is located that is adapted for screwing into an inner thread ( 3 ) in a water outlet ( 4 ) of a sanitary outlet fitting, the outer thread includes a thread profile that deviates at least in regions from a thread groove extending continuously in a helical manner about a cylindrical wall, said outer thread ( 2 ) cooperates in said regions in a self-adapting manner with the inner thread ( 3 ) provided in the water outlet ( 4 ).   
     
     
         2 . The jet regulator as claimed in  claim 1 , wherein a sub-region of the jet regulator housing ( 1 ), disposed on an outflow side of the outer thread ( 2 ), is angled in a direction that is adapted to be toward an inner circumference of the water outlet ( 4 ) such a way that a drainage annular space ( 8 ) is adapted to be formed between said housing sub-region and the inner circumference of the water outlet. 
     
     
         3 . A jet regulator ( 127 ,  130 ) comprising:
 a jet regulator housing ( 1 ) having a housing outer circumference on which an outer thread ( 2 ) is located that is adapted for screwing into an inner thread ( 3 ) in a water outlet of a sanitary outlet fitting, and further including on the housing outer circumference, at least one cross-sectional widening ( 6 ,  7 ) which is materially identical with a housing portion of the jet regulator housing ( 1 ) that supports the outer thread ( 2 ) and which is formed integrally thereon, and which said cross-sectional widening is adapted to bear sealingly on at least one of an end face or an inner circumferential face of the water outlet ( 4 ), a housing sub-region of the jet regulator housing ( 1 ), disposed on an outflow side of the outer thread ( 2 ), is angled in a direction that is adapted to be toward an inner circumference of the water outlet ( 4 ) such that a drainage annular space ( 8 ) is adapted to be formed between said housing sub-region and the inner circumference of the water outlet.   
     
     
         4 . The jet regulator as claimed in  claim 3 , wherein the jet regulator ( 101 ,  104 ,  111 ,  115 ,  127 ,  130 ) is configured as a jet aerator which mixes water flowing therethrough with ambient air and which for this purpose includes, in a housing portion of the jet regulator housing ( 1 ) disposed on the outflow side of the outer thread ( 2 ), at least one aeration opening ( 9 ) that is provided on the housing circumference or on an housing end face of the jet regulator housing ( 1 ). 
     
     
         5 . The jet regulator as claimed in  claim 3 , wherein the jet regulator housing ( 1 ) has at least two housing parts ( 10 ,  11 ) that are connectable to each other. 
     
     
         6 . The jet regulator as claimed in  claim 5 , wherein a first of the at least two housing parts ( 10 ) disposed on the outflow side supports the outer thread ( 2 ). 
     
     
         7 . The jet regulator as claimed in  claim 6 , wherein an outflow-side first housing part ( 10 ) is connectable on an inflow side to a second one of the at least two housing parts ( 11 ) of the jet regulator housing ( 1 ), said second housing part ( 11 ) supports a jet splitter which is adapted to split the water flowing therethrough into a multiplicity of individual jets. 
     
     
         8 . The jet regulator as claimed in  claim 7 , wherein the jet splitter comprises a diffuser which has a cup-shaped jet splitter insert ( 12 ) which, on a cup circumference of said cup shape, has a plurality of splitter openings ( 13 ), and said jet splitter insert ( 12 ) has a cup base ( 14 ) configured as an impact face that is adapted to deflect the inflowing water toward the splitter openings ( 13 ). 
     
     
         9 . The jet regulator as claimed in  claim 8 , wherein the second housing part ( 11 ) engages around the jet splitter insert ( 12 ), and the second housing part ( 11 ) tapers, at least in a region of the cylinder openings ( 13 ), such a way that an annular gap ( 15 ) is formed between the jet splitter insert ( 12 ) and a housing inner circumference of the second housing part ( 11 ), said annular gap ( 15 ) tapers on an outflow side toward an annular opening ( 16 ) that opens into a housing interior. 
     
     
         10 . The jet regulator as claimed in  claim 3 , further comprising a sleeve-shaped guide wall ( 17 ) is provided in the jet regulator housing ( 1 ), and least one aeration duct ( 18 ) between a housing inner circumference of the jet regulator housing ( 2 ) and the guide wall ( 17 ), said which aeration duct ( 18 ) leads to a housing interior from at least one aeration opening ( 9 ) disposed on the housing outflow side. 
     
     
         11 . The jet regulator as claimed in  claim 10 , further comprising an outflow-side housing end edge of the jet regulator housing ( 1 ) being configured as a lip seal ( 21 ) which is adapted to bear on the inner circumference of the water outlet ( 4 ) or lies close to the inner circumference of the water outlet ( 4 ). 
     
     
         12 . The jet regulator as claimed in  claim 10  or  11 , further comprising at least one drainage opening ( 22 ) is provided in a sub-region of the housing wall of the jet regulator housing ( 1 ) disposed between the outflow-side housing end face and the outer thread ( 2 ), said drainage opening ( 22 ) leads from the drainage annular space ( 8 ) to the aeration duct ( 18 ). 
     
     
         13 . The jet regulator as claimed in  claim 13 , further comprising a mesh or net structure ( 23 ) comprising webs that intersect one another at intersection nodes formed integrally on the guide wall ( 17 ) on the outflow side. 
     
     
         14 . The jet regulator as claimed in  claim 13 , wherein the guide wall ( 17 ) is connected in a rotationally fixed to the jet regulator housing ( 1 ), and at least one tool engagement face for a driving tool is provided on at least one of the guide wall ( 17 ) or on the mesh or net structure ( 23 ). 
     
     
         15 . The jet regulator as claimed in  claim 14 , further comprising at least one slit-shaped recess ( 29 ) adapted for insertion of a coin used as the driving tool, or of another driving tool, is provided in the mesh or net structure, said recess ( 29 ) is delimited by opposite slit longitudinal walls that form tool engagement faces for the driving tool. 
     
     
         16 . The jet regulator as claimed in  claim 3 , wherein an outer envelope body, formed by the outer thread ( 2 ) on the jet regulator housing ( 1 ) adapted to be screwed into the cylindrical inner thread, widens toward the outflow side. 
     
     
         17 . The jet regulator as claimed in  claim 3 , further comprising at least one molding ( 26 ,  28 ) which serves as a liquids bulkhead and which projects into at least one thread groove of the outer thread ( 2 ) on the housing outer circumference of the jet regulator housing ( 1 ). 
     
     
         18 . The jet regulator as claimed in  claim 17 , wherein the at least one molding ( 26 ,  28 ) reaches as far as the envelope body enveloping the outer thread ( 2 ) or at least in regions projects beyond this envelope body. 
     
     
         19 . The jet regulator as claimed in  claim 18 , wherein the at least one molding is configured as a separation wall ( 26 ) that extends across at least two neighboring thread grooves of the outer thread. 
     
     
         20 . The jet regulator as claimed in  claim 19 , wherein the at least one separation wall ( 26 ) runs approximately axially parallel to a housing longitudinal axis of the jet regulator housing ( 1 ). 
     
     
         21 . The jet regulator as claimed in  claim 19 , wherein the at least one molding ( 28 ) is cam-shaped, and the cam-shaped molding ( 28 ) in the thread groove extends approximately in a groove longitudinal direction. 
     
     
         22 . The jet regulator as claimed in  claim 3 , wherein the thread profile of the outer thread ( 2 ), projecting beyond the thread groove, widens at least in regions to form at least one cross-sectional widening ( 6 ;  7 ). 
     
     
         23 . The jet regulator as claimed in  claim 22 , wherein the at least one cross-sectional widening ( 6 ;  7 ) projects like a flange on the housing outer circumference of the jet regulator housing ( 1 ). 
     
     
         24 . The jet regulator as claimed in  claim 23 , wherein the at least one flange-shaped cross-sectional widening ( 6 ;  7 ) extends, in a housing circumferential direction of the jet regulator housing, across at least one drainage opening provided in a sub-region of the housing wall of the jet regulator housing ( 1 ) disposed between the outflow-side housing end face and the outer thread ( 2 ). 
     
     
         25 . The jet regulator as claimed in  claim 24 , wherein the at least one flange-like cross-sectional widening ( 6 ;  7 ) on the housing outer circumference of the jet regulator housing is provided between the outer thread and the at least one drainage opening ( 22 ). 
     
     
         26 . The jet regulator as claimed in  claim 25 , wherein the flange-like cross-sectional widening ( 7 ) is configured as an annular flange that encircles the jet regulator housing ( 1 ). 
     
     
         27 . The jet regulator as claimed in  claim 26 , wherein the at least one flange-like cross-sectional widening ( 6 ;  7 ) is configured as a screw-in abutment which is adapted to limit a screwing of the outer thread ( 2 ) into the inner thread ( 3 ) in the water outlet ( 4 ) of the outlet fitting. 
     
     
         28 . The jet regulator as claimed in  claim 3 , wherein the jet regulator ( 101 ,  104 ,  111 ,  115 ,  127 ,  130 ) is designed free of a sealing ring and is adapted to be installed makes do without a sealing ring of elastic material produced separately from the jet regulator housing ( 1 ). 
     
     
         29 . The jet regulator as claimed in  claim 9 , wherein the jet splitter comprises a perforated plate ( 30 ) which has splitter openings ( 31 ). 
     
     
         30 . The jet regulator as claimed in  claim 29 , wherein the splitter openings ( 31 ) taper, at least in regions, in the throughflow direction. 
     
     
         31 . The jet regulator as claimed in  claim 30 , further comprising that at least one insert part ( 32 ,  33 ) arranged at a distance downstream from the jet splitter in the flow direction, said insert part ( 32 ,  33 ) has a mesh or net structure comprised of webs that intersect one another at intersection nodes. 
     
     
         32 . The jet regulator as claimed in  claim 31 , wherein the mesh or net structure ( 23 ) provided in the at least one insert part ( 32 ,  33 ) has throughflow openings ( 24 ) which have at least one of a honeycomb-shaped or hexagonal clear opening cross section. 
     
     
         33 . The jet regulator as claimed in  claim 31 , wherein the mesh or net structure provided in the at least one insert part ( 32 ,  33 ) is formed from at least two concentrically encircling webs which are connected to a group of radial webs. 
     
     
         34 . The jet regulator as claimed in  claim 31 , wherein the mesh or net structure provided in the at least one insert part has a group of axially parallel first webs which intersect a group of axially parallel second webs which are disposed at an angle in relation to said group of axially parallel first webs. 
     
     
         35 . The jet regulator as claimed in  claim 31 , wherein the mesh or net structure provided in the insert part is formed by mutually intersecting webs which are disposed at an angle to each other such that said mesh or net structure is formed from throughflow openings that are non-uniformly shaped in terms of clear open cross sections thereof.