WO2017186676A1 - Mixing unit and mixer tap comprising such a mixing unit - Google Patents

Mixing unit and mixer tap comprising such a mixing unit Download PDF

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Publication number
WO2017186676A1
WO2017186676A1 PCT/EP2017/059725 EP2017059725W WO2017186676A1 WO 2017186676 A1 WO2017186676 A1 WO 2017186676A1 EP 2017059725 W EP2017059725 W EP 2017059725W WO 2017186676 A1 WO2017186676 A1 WO 2017186676A1
Authority
WO
WIPO (PCT)
Prior art keywords
shutter
axis
mixing unit
neck
passage section
Prior art date
Application number
PCT/EP2017/059725
Other languages
French (fr)
Inventor
Pierre-Olivier FASSOLETTE
Original Assignee
Vernet
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 Vernet filed Critical Vernet
Publication of WO2017186676A1 publication Critical patent/WO2017186676A1/en

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/13—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures
    • G05D23/1306—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids
    • G05D23/132—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element
    • G05D23/134—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element measuring the temperature of mixed fluid
    • G05D23/1346—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element measuring the temperature of mixed fluid with manual temperature setting means
    • G05D23/1353—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element measuring the temperature of mixed fluid with manual temperature setting means combined with flow controlling 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/078—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted and linearly movable closure members
    • F16K11/0782—Single-lever operated mixing valves with closure members having flat sealing faces
    • F16K11/0787—Single-lever operated mixing valves with closure members having flat sealing faces with both the supply and the discharge passages being on the same side of the closure members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
    • 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
    • E03C2001/026—Plumbing installations for fresh water with flow restricting devices

Definitions

  • Mixing unit and mixing valve comprising such a mixing unit
  • the present invention relates to a mixing unit and a mixing valve comprising such a mixing unit.
  • the invention relates to the field of sanitary taps.
  • so-called "mixer” faucets make it possible to emit a mixed flow of running water by mixing a flow of hot water and a flow of cold water within a cartridge mounted in the body of the tap.
  • the respective flow rate of the cold water and hot water flows admitted into the cartridge can be adjusted by means of a control lever, in order to allow adjustment of the temperature of the mixed flow by rotation of the lever around an axis, and the flow rate of the mixed flow by lever rotation about a second axis.
  • the cartridge comprises in most cases a pair of perforated ceramic discs, one being fixed, and the other being movable under the action of the lever while being in flat contact, sliding and sealed with the fixed disc.
  • channels are formed to allow the admission of cold and hot water flows within the cartridge, with a greater or lesser flow, and thus cause their mixing to the formation of mixed flow.
  • FR-B-2,876,433 discloses a cartridge for a mixing valve equipped with an additional thermostatic module sealingly coupled to the base of the cartridge.
  • the additional thermostatic module is provided with thermostatic means allowing, when the temperature of the mixed flow exceeds a predetermined threshold value, to close the passage of hot water before entering the cartridge, to automatically limit the flow temperature.
  • the thermostatic means comprise a thermostatic element actuating a valve to close the passage of hot water.
  • the valve is tubular and of circular section, and is adapted to come into contact with a sealing ring mounted at a junction zone. This sealing ring is itself circular in section, so that it defines a circular passage section.
  • FR 3 003 046 A1 describes a cartridge, associated with a base, comprising a regulation slide actuated by a thermostatic element.
  • the base includes also an insert defining a passage section coaxial with an axis of the cartridge and leading to an outlet.
  • the slide is brought into contact with the workpiece so as to close off the passage section of the latter, thereby preventing the flow of hot water coming from an air duct.
  • the insert is tubular in shape with a circular base. In particular, its seat is defined as "annular". This is confirmed by the fact that the drawer itself is tubular with a circular base. This shape allows the passage of a relatively high water flow.
  • the space occupied by the base along the axis of the cartridge is relatively large, particularly because of the orientation of the thermostatic element, so that this assembly is not compatible with valves for which space allocated to the base is particularly low.
  • the invention aims to overcome the disadvantages of the prior art by proposing a new mixing unit that allows to deliver a high flow while adapting to most existing mixer taps.
  • the invention relates to a mixing unit for a mixing valve having a generally cylindrical shape defining a main axis of the mixing unit, the mixing unit comprising:
  • a closure collar of the second inlet which is arranged upstream of the second inlet in consideration of the direction of the second incoming flow
  • thermostatic means which comprise:
  • thermosensitive portion disposed at least partially at the outlet, and a portion that is movable in translation relative to the thermosensitive portion along a shutter axis, the collar defining a passage section defined perpendicularly with respect to the shutter axis, and
  • a shutter which is complementary to the neck and which is connected to the moving part so as to evolve, depending on the position of the movable part, between a closed position of the second input in which the shutter is in sealing contact with the neck, and an opening position of the second inlet in which the shutter is spaced from the neck.
  • the passage section of the neck has a width, measured perpendicularly to the main axis, whose value is greater than the value of a height of the passage section, the height being measured perpendicularly to the width.
  • the maximum flow rate of the second flow, for a given pressure is increased, insofar as the value of the width of the passage section is relatively high, while the size of the additional housing along the main axis is nevertheless particularly weak, the value of the height of the passage section being relatively small.
  • height is meant a dimension measured in the plane of the passage section.
  • width is meant a dimension measured in the plane of the passage section.
  • the value of the width of the passage section is greater than 1, 2 times the value of the height of the passage section, the value of the width of the passage section being preferably equal to approximately 1, 6 times the value of the height of the passage section;
  • the passage section has a substantially elliptical shape, the width forming the large diameter of the elliptical shape and the height forming the small diameter of the elliptical shape;
  • the mixing unit comprises a baffle duct which comprises:
  • the intermediate portion comprises a guide sub-portion of the shutter in translation along the shutter axis, the guiding sub-portion:
  • o being of cylindrical general shape, along the shutter axis, with an elliptical section having a width, measured perpendicular to the main axis, whose value is greater than the value of a height of the elliptical section, the height of the elliptical section being measured perpendicular to the width of the elliptical section;
  • the cylindrical shape of the guiding sub-portion is extended by a housing duct leading to the outlet, and thus connecting the second inlet to this outlet, the thermostatic element being mounted within the housing duct by closing the duct housing tightly;
  • the shutter comprises a main body translationally connected to the movable part along the shutter axis, the main body comprising at least two longitudinal ribs through which the main body is slidably mounted in the subpart of guidance, along the shutter axis;
  • the intermediate part comprises an admission subpart which:
  • o is fluidly connected to an upstream portion of the baffle duct, the upstream portion extending parallel to the main axis, and
  • o houses a resilient return member of the shutter from the closed position to the open position
  • the shutter comprises a sealing gasket, configured to come into sealing engagement with the neck, all the way around the passage section, when the shutter is in the closed position.
  • the invention also relates to a mixing valve equipped with a mixing unit as defined above.
  • FIGS. 1 and 2 are longitudinal sections of a mixing valve comprising a mixing unit according to the invention
  • Figure 3 is a view of a detail of Figure 1, on a larger scale, according to the frame III;
  • Fig. 4 is an inclined cross-section of Fig. 3 taken along line IV-IV shown in Fig. 3, with respective cutting lines 1-11 and 11-11 of Figs. 1 and 2 being shown in Fig. 4; and
  • FIG. 5 is a perspective view of an additional housing of the mixing unit of the preceding figures, the housing being cut in the same manner as Figure 1, thermostatic means that the housing encloses being shown uncut.
  • Figures 1 and 2 illustrate a mixing valve 1 in which is inserted a mixing unit 2.
  • the mixing valve 1 is preferably designed to be installed on a tray of the type sink or shower, or more generally within a sanitary installation.
  • the mixing valve 1 comprises, in a conventional manner, a nozzle 3 from which a mixed flow of water illustrated by the arrow M1 is intended to be emitted.
  • the valve 1 also comprises a body 4, which forms a hollow cylinder defining a main axis X4 which is intended to be arranged vertically when the valve is mounted on the sanitary installation.
  • the axis X4 is arranged in a direction different from the vertical and is for example horizontal.
  • the spout 3 forms a curved conduit extending from the body 4 obliquely to the main axis X4, upwards, the curvature of the spout 3 to guide the flow of mixed water M1 to the bottom.
  • the mixed flow of water thus progresses obliquely upwards in the beak along the arrow M2 to the free end of the latter.
  • the mixing valve 1 also comprises a cold water inlet 5 which is visible in FIG. 2, and a hot water inlet 6 which can be seen in FIG. 1, which are connected to the body 4 at a low end. of the last.
  • the cold water inlet 5 and the hot water inlet 6 are intended to be connected to conventional water supply means of the sanitary installation, which are not detailed in the present description.
  • the cold water progresses upwards in the inlet 5, according to the arrow F1, at a temperature Tf.
  • the hot water progresses upwards in the inlet 6, according to the arrow C1, at a temperature Te.
  • the streams C1 and F1 are mixed within the mixing valve 1 to form the flow M1, a temperature T M between Tf and Te, and flow added streams C1 and F1.
  • the mixing unit 2 is housed within the body 4, being inserted into the body 4 through an upper opening 9 of the body 4 along the main axis X4. It is in this mixing unit 2 that the mixing of the incoming flows F1 and C1 is performed to form the outgoing flow M1.
  • the mixing unit 2 has a generally cylindrical shape coaxial with the main axis X4.
  • the mixing unit 2 comprises, on the one hand, a cartridge 1 1, which contains means 13 for mixing the first incoming stream F1 and the second incoming stream C1 to form the outgoing stream M1, and on the other hand an additional box 15 which includes a upper wall 46 through which said housing 15 is mounted bearing upwardly against a lower wall 45 of the cartridge 1 1 along the main axis X4.
  • the cartridge 1 1 is located in the upper part of the body 4, above the additional box 15 which is located in the lower part of the body 4.
  • the additional box 15 has a lower face 24 through which it is itself supported downwards against a bearing wall 23 of the body 4.
  • the latter is substantially discoidal and extends radially relative to the main axis X4.
  • the inlets 5 and 6 of the incoming flows F1 and C1 pass through the support wall 23 to supply the additional box 15 via the lower face 24.
  • the inlets 5 and 6 are respectively connected, in a sealed manner, to a first inlet 19 of the first incoming flow F1, and a second input 21 of the second incoming flow C1 opening on the surface of the lower face 24.
  • the first incoming flow progresses along the arrow F1 to the first input 19 and continues its travel through the additional box 15 from bottom to top along the arrow F2 in a conduit 25 passing through the housing.
  • additional member 15 having a substantially cylindrical shape along an axis parallel to the main axis X4, the through conduit 25 extending from the first inlet 19 to an inlet 39 of a mixing chamber 27 of the cartridge 1 1.
  • the through conduit 25 guides the first inward flow F2 to the mixing chamber 27 of the cartridge 1 1, passing through the upper wall 46 of the housing 15 through the inlet 39.
  • the mixing chamber 27 belongs to the mixing means 13.
  • the second incoming flow enters the additional box 15 via the second input 21, and flows from bottom to top along the arrow C2 through the additional box 15 in a conduit in a baffle 32 which extends generally from the bottom upwards from the second input 21.
  • this baffle duct 32 comprises an upstream portion 31 substantially parallel to the main axis X4 and extending from the second inlet 21.
  • the baffle duct 32 then comprises an intermediate portion 29, including a closure neck 30 through which the baffle duct 32 can be closed with a shutter 87.
  • the intermediate portion 29 extends the upstream portion 31 along an axis of shutter X73 included in the plane of Figure 1.
  • the shutter axis X73 is not parallel to the axis X4, but is on the contrary inclined with respect to the latter, so that the intermediate portion 29 leads the flow C2 in a baffle.
  • the baffle duct 32 comprises a downstream portion 35, substantially parallel to the main axis X4 leading the second incoming flow C2 to the cartridge 1 1 and extending the intermediate portion 29.
  • the downstream portion 35 passes through the upper wall 46 of the housing 15 and extends to a second inlet 41 of the mixing chamber 27 in parallel and non-coaxial manner with the upstream portion 31.
  • the intermediate portion 29 fluidly connects the upstream 31 and downstream portions 35, obliquely to the latter, so that the baffle duct 32 forms an "S".
  • the downstream portion 35 opens into the mixing chamber 27 through an inlet 41 of the latter, from which the downstream portion 35 extends.
  • the two incoming flows F2 and C2 are admitted within the mixing chamber 27 of the cartridge 1 1 to be mixed and form an outflow M3 for forming the flow M1.
  • the mixing chamber 27 comprises the inlet 39 for the first stream F2, the inlet 41 for the second stream C2, and an outlet 43 for the outflow M3, as can be seen in particular in FIGS. and 3.
  • the inlets 39, 41 and the outlet 43 open at the surface of the lower wall 45 of the cartridge 11.
  • the bottom wall 45 is of generally discoid shape centered on the main axis X4, the inputs 39 and 41 and the outlet 43 being distributed around the main axis X4.
  • the inlets 39, 41 and the outlet 43 are respectively surrounded by seals 44, 48 and 52, mounted on the surface of the bottom wall 45, in order to seal the connection between the cartridge 1 1 and the additional housing, by crushing the seals 44, 48 and 52 against the upper wall 46 of the housing 15.
  • the mixing means 13 comprise a set of mixing discs 13A, 13B and 13C, which are contained in the mixing chamber 27, as can be seen in FIGS. 1 and 2.
  • the mixing discs 13A , 13B and 13C are in surface contact with each other and extend in planes orthogonal to the main axis X4.
  • the set of mixing discs comprises an upper disc 13A, an intermediate disc 13B and a lower disc 13C, the upper discs 13A and 13B intermediate being movable relative to the disc 13C which is fixed, the intermediate disc 13B being in sliding contact and sealed with the 13C disc.
  • Intermediate discs 13B and lower 13C comprise a system of channels and gills, not shown, which is connected to inputs 39 and 41 as well as to output 43 and which, depending on the relative position of discs 13B and 13C, regulates the respective flow rate of the incoming flows F2 and C2 admitted within the set of disks by the inputs 39 and 41.
  • the inflow flows through the system of channels and gills and passes first through the lower disk 13C, then into the intermediate disk 13B.
  • the incoming flows F3 and C3 then flow again through the lower disk 13C from top to bottom.
  • the outgoing flow M3 is at temperature T M , the ratio flow rates of the incoming flows F3 and C3 for adjusting the temperature T M , and the value of the flow rates of the incoming flows F3 and C3 for adjusting the flow of the outgoing flow M3.
  • the passage section of the incoming flows F3 and C3 varies as a function of the relative position of the disks 13B and 13C, by placing in communication the aforementioned channels and gills.
  • Ceramic discs and their channel system are not described in more detail because they constitute well-known mixing means as such, and described for example in FR-B1 -2 876 433. It is also understood that, even if It is preferred to use a ceramic disk mixing chamber, any known mixing means and usually used in mixing valve cartridges may be used instead.
  • the outflow M3 formed by mixing within the mixing chamber 27 is then discharged out of the latter, and out of the cartridge 1 1, into an outlet chamber 37 of the mixer tap 1, leading the outgoing flow M3 from above. bottom to an outlet 47 formed through the support wall 23.
  • the arrivals 5 and 6 and the outlet 47 are distributed around the main axis X4.
  • the additional box 15 comprises a sealing ring 71 of circular shape which is centered on the main axis X4.
  • the sealing ring 71 extends in an orthogonal plane P71 relative to the axis X4, projecting centrifugally with respect to the axis X4, from the upper wall 46 of the housing 15 in this case, the sealing ring comprises a circular groove open radially outwards, within which is formed a crushed O-ring in contact with the body 4, as 1 and 2.
  • the sealing ring 71 thus delimits an upper portion of the outlet chamber 37, the latter also being delimited laterally by the wall of the body 4, and at the bottom by the bearing wall 23.
  • the outlet chamber 37, the through duct 25 and the baffle duct 32 are regularly distributed around the main axis X4. As illustrated in FIGS.
  • the outflow M3 is thus discharged into a low chamber 50, of the body 4 via the outlet 47.
  • the lower chamber 50 is delimited at the top by the wall 23 , laterally by the body 4 and bottom by a bottom 49 of the mixer tap 1.
  • the bottom 49 is substantially discoidal and orthogonal to the main axis X4, and closes the body 4 at the lower end thereof.
  • the outflow M3 is led, according to the arrow M4, to the spout 3, via an access opening 51 formed in the wall of the body 4 radially relative to the axis main X4, placing in communication the lower chamber 50 with the spout 3.
  • the outflow M4 becomes the outflow M2, then the outflow M1, mentioned above.
  • the mixing unit 2 further comprises a lever 7 which is movably mounted at the top of the cartridge 1 1, so as to protrude from the body 4 via the upper opening 9, to allow a user to operate.
  • the lever 7. The actuation of the lever 7 makes it possible to control the mixing means 13, and in particular to move the upper and intermediate disks 13A and 13B in rotation about an axis parallel to the main axis X4, or around the X4 axis itself, and in translation along an axis X13 which is orthogonal to the main axis X4.
  • the lever 7 forms a control member for actuating at least one of the disks 13A, 13B and 13C, and thus to control the respective flow rate of the first incoming flow F1 and the second incoming flow C1.
  • control member 7 makes it possible to adjust both the temperature and the flow rate of the outflow M1 by adjusting the relative position of the disks of the disk assembly 13A, 13B and 13C.
  • the mixing valve 1 and the cartridge 1 1 can thus be described as "single-command" insofar as the lever 7 makes it possible to control both the flow rate and the temperature of the outgoing flow M1 by adjusting the flow rates of the incoming flows F1 and C1.
  • the lever 7 is:
  • the lever 7 is connected to the set of disks 13A, 13B and 13C, that is to say to the mixing means 13, by an operating mechanism which is not described in more detail, insofar as it is known as such.
  • the cartridge 1 1 comprises a cover 53, which forms an outer casing wall of the cartridge 1 1, substantially cylindrical with a circular base around the main axis X4.
  • the cover 53 encloses the mixing means 13, laterally delimiting the chamber 27.
  • the cover 53 also encloses the base of the lever 7, the cartridge comprising a ring 63, attached to an upper end of the cover 53, through which a nut 65, centered around the main axis X4, plates the mixing unit 2 against the bearing wall 23.
  • the nut 65 has an external thread which is screwed into an internal thread 69 of the upper opening 9 of the body 4, the thread 69 being centered on the axis X4.
  • the mixing unit 2 also comprises thermostatic means, visible in particular in Figure 1, which comprise in the first place a thermostatic element 73, extending along the axis of closure X73.
  • thermostatic means visible in particular in Figure 1, which comprise in the first place a thermostatic element 73, extending along the axis of closure X73.
  • the shutter axis X73 and the orthogonal plane P71 are intersecting.
  • the shutter axis X73 could be chosen parallel with the plane P71.
  • the thermostatic element 73 includes a thermosensitive portion 75 mounted in a housing conduit 79 which extends the intermediate portion 29 along the axis. X79 shutter and opens into the outlet chamber 37.
  • the housing pipe 79 is thus formed in the additional housing 15 so as to connect the outlet chamber 37 and the inlet 41.
  • the thermosensitive part 75 forms a fixed part of the thermostatic element 73 and comprises in particular, along the closure axis X73, a cup 81 which protrudes from the housing pipe 79 and which extends into the passage of the outflow M3, at the outlet 47.
  • the cup 81 has a generally cylindrical shape with a circular base centered on the shutter axis X73, and encloses a heat-expandable body which is for example a suitable wax.
  • the cup 81 being in contact with the outflow M3, the heat-expandable body expands and contracts as a function of the temperature T M of the outflow M3.
  • the thermosensitive portion 75 also includes a guide 83, which extends the cup 81 along the shutter axis X73, and through which the thermosensitive portion 75 is mounted in the housing conduit 79. screw form, with an external thread, around the shutter axis X73, and extends at least partially within the housing conduit 79.
  • the guide 83 is screwed within a support ring 84 provided with an internal thread, coaxial with the axis X73, the support ring 84 being itself fixed within an end portion 90 of the housing conduit 79.
  • the end portion 90 is extends on the output side 47, opening on the outlet chamber 37.
  • the support ring 84 is partially inserted in the end portion 90, and has a seal 92 complementary to the housing conduit 79, so as to seal it tightly and prevent any transfer of water from the second flow C2 into the outlet 47 via the housing conduit 79.
  • the support ring 84 is attached to the housing conduit 79 by means of fixing elements 94 shown diagrammatically in FIG. kind of screw.
  • the fixing elements 94 are implanted in a wall of the chamber 37, which forms the periphery of the end portion 90.
  • the thermostatic element 73 is thus housed in the pipe of housing 79 closing the communication between the outlet 47 and the second inlet 21 in a sealed manner.
  • the thermostatic element 73 also includes a movable portion 77, which forms a cylindrical piston coaxial with the shutter axis X73.
  • the movable portion 77 is mounted within the guide 83, so as to be translatable relative to the thermosensitive portion 75 away from the thermosensitive portion 75, in the direction of the baffle duct 32, along the axis of closure X73 under the action of the thermo-expandable body contained in the cup 81.
  • the shutter 87 of the thermostatic element 73 is provided within the intermediate portion 29, and is designed to be moved in translation along the shutter axis X73 by the movable portion 77 to a closed position wherein the shutter 87 is in sealing contact with the sealing neck 30.
  • the inlet 41 is then closed, the closure neck 30 being disposed upstream of the latter, in consideration of the direction of flow C2.
  • the flow C2 flow through the input 41 is then interrupted, at least a majority.
  • the shutter 87 is also configured to be moved to an open position of the inlet 41, in which the shutter 87 is spaced from the sealing collar so as to allow the passage of the stream C2. Note that only the open position is shown in the figures.
  • the shutter 87 comprises a main body 88 which is arranged relative to the movable portion 77 so that the latter can push the shutter 87 along the axis X73.
  • the movable portion 77 is in contact with the main body 88 of the shutter 87 so as to push the latter away from the thermosensitive portion 75 in a direction D1 parallel to the axis X73, under the action of the thermodilatable body contained in the cup 81, to the closed position.
  • the shutter 87 also comprises a seal 26 for closing the neck 30, formed for example by an outer seal mounted on the periphery of the main body 88.
  • the lining 26 is complementary, in shape, with the sealing neck 30.
  • the closure neck 30 delimits a passage section S30 of the second incoming flow C2 visible in FIGS. 3 to 5.
  • the contour of the passage section S30 is drawn by the neck 30.
  • the section of S30 passage perpendicular to the axis X73.
  • the sealing gasket 26 comes into sealed contact with the sealing neck 30, all around the passage section S30, to seal the intermediate portion 29.
  • a central portion of the passage section S30 is capable of being occupied by the shutter 87 as a function of the position of the latter, so that the flow C2 passes between the neck 30 and the contour of the shutter 87.
  • the passage section S30 has a width L30, visible in Figures 4 and 5 and measured perpendicularly to the main axis X4 and the axis X73, and a height H30, visible in Figures 3 and 5 and measured perpendicularly to the width L30.
  • the section S30 has a substantially elliptical shape, the value of the width L30 being greater than the value of the height H30.
  • the width L 30 forms the large diameter of the elliptical shape of the section S 30, whereas the height H 30 forms the small diameter of this elliptical shape.
  • the passage section S 30 thus has a minimum space requirement in the direction of the X4 axis while allowing the passage of a large flow rate C2 flow, thereby minimizing the pressure drop within the housing 15.
  • the value of the width L30 of the passage section S30 is greater than 1, 2 times the value of the height H30 of the passage section S30.
  • the value of the width L 30 of the passage section S 30 is equal to about 1.6 times the value of the height H 30 of the passage section S 30.
  • the closure seal 26 has an elliptical shape, corresponding to the shape of the passage section S30, and for example a circular section, as can be seen in FIGS. 3 and 4, for guarantee the sealing of the contact with the neck 30 in the closed position.
  • a circular section instead of a circular section, other forms of section are conceivable.
  • the neck 30 in turn forms a frustoconical chamfer bypassing the section S30.
  • the neck 30 is coaxial with the axis X73.
  • the neck 30 is inclined relative to the axis X73, while being traversed by the latter.
  • the intermediate portion 29 comprises a guiding sub-portion 91 in translation of the shutter 87 and an intake sub-portion 93 of the flow C2 within the intermediate portion 29, these two sub-portions 91 and 93 being connected by the closure neck 30, extending in an intermediate zone of the intermediate portion 29.
  • the guiding sub-portion 91 extends along the X73 axis from the sealing neck 30, to the housing conduit 79, being fluidly connected to the downstream portion 35 between the sealing neck 30 and the housing pipe 79.
  • the intake sub-portion 93 extends the closure neck 30 along the axis X73 to the upstream portion 31.
  • the guiding sub-portion 91 is generally cylindrical in shape, along the shutter axis X73.
  • This cylindrical shape like the closure neck 30, has a section S91, that is to say a section orthogonal to the axis X73, of elliptical shape, or at least homothetic with the shape of the passage section S30.
  • Section S91 having a width L91, measured perpendicular to the main axis and parallel to the width L30, and a height H91, measured perpendicular to the width of the section S91 and therefore parallel to the height H30.
  • the width value L91 of the section S91 is greater than that of the height H91 of this section S91, to facilitate the passage of the flow C2 while minimizing the space occupied in the direction of the main axis X4.
  • the housing conduit 79 extends the guide portion 91, in the continuity of its cylindrical shape along the axis X73, so that the housing conduit 79 itself has a cylindrical shape along the axis X73, with the same section S91.
  • the main body 88 of the shutter 87 comprises four ribs 86, of which three are visible in Figure 5, distributed around the axis X73 and extending parallel to this axis X73.
  • the ribs 86 together form guide means in translation of the shutter 87, through which the shutter 87 is slidably mounted in the guiding sub-portion 91 and in a portion of the housing pipe 79 extending from the guiding sub-portion 91.
  • the ribs 86 bear sliding against the continuous cylindrical inner wall of the housing pipe 79 and the guiding sub-portion 91.
  • the shutter 87 includes at least two ribs 86 providing its support and its translation guide along the axis X73.
  • the interstitial space formed between the ribs 86, the main body 88 and the cylindrical wall of the housing pipe 79 and the guiding sub-portion 91 is able to admit a portion of the flow C2, which facilitates its circulation.
  • the main body 88 of the shutter 87 is mounted in compression between the free end of the movable portion 77 and a return spring 89 housed in the intake subpart 93.
  • the return spring 89 is mounted in compression between the main body 88 and an opposite wall 28 of the intake sub-portion 93, the opposite wall 28 being located at one end of the intermediate portion 29 opposite the end portion 90.
  • the opposite wall 28 extends in a plane orthogonal to the X73 axis.
  • the return spring 89 is therefore a compression spring, which forms an elastic return element of the shutter 87 in a direction D2 opposite to D1, to the open position.
  • the intake subpart 93 is cylindrical, having as its base the neck 30, that is to say, in this example, an elliptical section corresponding to the passage section S30.
  • the neck 30 forms the edge of one end of the intake subpart 93, opposite the wall 28.
  • the cross section of the intake subpart 93 taken with respect to the X73 axis, and has a width parallel to the width L30, a value greater than the value of a height of the intake subpart, this height being parallel to the height H30.
  • the base of the cylindrical shape of the intake subpart 93 is elliptical and homothetic with respect to section S91.
  • the passage of C2 flow is also facilitated in this part of the baffle duct 32, while the size of the baffle duct 32 is particularly small along the main axis X4.
  • the shutter 87 is thus configured to close the second inlet 21 by closing the intermediate portion 29, according to a variable degree of closure depending on the expansion of the heat-expandable body, and therefore the temperature T M , to vary the flow rate of the second incoming stream C2 accordingly.
  • a predetermined threshold for example 50 ° C.
  • the stream C2 is totally, or at least mainly, interrupted by closing off the second input 21.
  • the sections S30 and S91 have a shape that is not elliptical, but that is for example rectangular, or any other shape whose width L30 and L91 is greater than the height H30 and H91, respectively.
  • the shape of the sections S30 and S91 is chosen to promote the passage of the stream C2, having a maximum area, while being the least cumbersome possible along the axis X4.
  • the upper wall 46 and the lower wall 45 are formed by a common piece in one piece, so that the housing 15 forms the bottom of the cartridge January 1.
  • the arrival 5 corresponds to an arrival of a first incoming flow F1 of fluid having a first temperature Tf
  • the arrival 6 corresponds to an arrival of a second incoming flow C1 of fluid having a second temperature. Te which is greater than the first temperature Tf.
  • the fluids of the first incoming stream F1 and the second incoming stream C1 are preferably identical and liquid, but may however be of a different nature.
  • the water escaping from the spout 3 thus corresponds to an outgoing flow M1 of fluid, which is formed by mixing the first and second incoming flows F1 and C1 within the mixing valve 1.

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Abstract

The invention relates to a mixing unit which defines a main axis (X4) and comprises a first inlet and a second inlet (41) for incoming fluid streams (C2), having a first temperature and a second temperature, respectively, and an outlet (43) for an outgoing stream (M3). The mixing unit comprises means for mixing the incoming streams in order to form the outgoing stream, a neck (30) for sealing the second inlet and a sealing member (87) that mates with the neck. The neck defines a flow area (S30) for the second incoming stream (C2). According to the invention, the flow area has a width (L30), measured perpendicular to the main axis (X4), with a higher value than the value of a height (H30) of the flow area, the height being measured perpendicular to the width, so as to supply a high flow rate while adapting to most existing mixer taps.

Description

Unité de mélange et robinet mitigeur comprenant une telle unité de mélange  Mixing unit and mixing valve comprising such a mixing unit
La présente invention concerne une unité de mélange et un robinet mitigeur comprenant une telle unité de mélange. The present invention relates to a mixing unit and a mixing valve comprising such a mixing unit.
L'invention se rapporte au domaine de la robinetterie d'usage sanitaire. En particulier, les robinets dits « mitigeurs » permettent d'émettre un flux mitigé d'eau courante par mélange d'un flux d'eau chaude et d'un flux d'eau froide au sein d'une cartouche montée dans le corps du robinet. Le débit respectif des flux d'eau froide et d'eau chaude admis dans la cartouche peuvent être réglés à l'aide d'un levier de commande, afin de permettre un réglage de la température du flux mitigé par rotation du levier autour d'un axe, et du débit du flux mitigé par rotation de levier autour d'un deuxième axe.  The invention relates to the field of sanitary taps. In particular, so-called "mixer" faucets make it possible to emit a mixed flow of running water by mixing a flow of hot water and a flow of cold water within a cartridge mounted in the body of the tap. The respective flow rate of the cold water and hot water flows admitted into the cartridge can be adjusted by means of a control lever, in order to allow adjustment of the temperature of the mixed flow by rotation of the lever around an axis, and the flow rate of the mixed flow by lever rotation about a second axis.
La cartouche comprend dans la plupart des cas une paire de disques céramiques ajourés, l'un étant fixe, et l'autre étant mobile sous l'action du levier tout en étant en contact plan, glissant et étanche avec le disque fixe. En fonction de la position du disque mobile sur le disque fixe, des canaux sont formés pour permettre l'admission des flux d'eau froide et chaude au sein de la cartouche, avec un débit plus ou moins important, et ainsi entraîner leur mélange pour la formation du flux mitigé.  The cartridge comprises in most cases a pair of perforated ceramic discs, one being fixed, and the other being movable under the action of the lever while being in flat contact, sliding and sealed with the fixed disc. Depending on the position of the mobile disc on the fixed disc, channels are formed to allow the admission of cold and hot water flows within the cartridge, with a greater or lesser flow, and thus cause their mixing to the formation of mixed flow.
Certaines cartouches connues peuvent être dotées d'un boîtier additionnel séparé, et qui est rapporté contre la cartouche. Par exemple, le brevet FR-B-2 876 433 décrit une cartouche pour un robinet mitigeur équipée d'un module thermostatique additionnel accouplé de manière étanche à la base de la cartouche. Le module thermostatique additionnel est pourvu de moyens thermostatiques permettant, lorsque la température du flux mitigé excède une valeur de seuil prédéterminée, d'obturer le passage d'eau chaude avant son entrée dans la cartouche, afin de limiter automatiquement la température du flux. En particulier, les moyens thermostatiques comprennent un élément thermostatique actionnant un clapet pour obturer le passage d'eau chaude. Le clapet est tubulaire et de section circulaire, et est apte à venir en contact avec un anneau d'étanchéité monté à une zone de jonction. Cet anneau d'étanchéité est lui-même de section circulaire, si bien qu'il définit une section de passage circulaire.  Some known cartridges may be provided with a separate additional box, which is attached against the cartridge. For example, FR-B-2,876,433 discloses a cartridge for a mixing valve equipped with an additional thermostatic module sealingly coupled to the base of the cartridge. The additional thermostatic module is provided with thermostatic means allowing, when the temperature of the mixed flow exceeds a predetermined threshold value, to close the passage of hot water before entering the cartridge, to automatically limit the flow temperature. In particular, the thermostatic means comprise a thermostatic element actuating a valve to close the passage of hot water. The valve is tubular and of circular section, and is adapted to come into contact with a sealing ring mounted at a junction zone. This sealing ring is itself circular in section, so that it defines a circular passage section.
Cependant, la plupart des corps de robinets existants n'offrent qu'un espace limité pour le module, de sorte que ce dernier doit être conçu de manière à être le plus compact possible. Ce faisant, la présence du module est susceptible de limiter le débit maximal pouvant être délivré par le robinet, compte-tenu de la compacité d'un tel module.  However, most existing valve bodies offer only limited space for the module, so the module must be designed to be as compact as possible. In doing so, the presence of the module is likely to limit the maximum flow rate that can be delivered by the tap, given the compactness of such a module.
FR 3 003 046 A1 décrit une cartouche, associée à une embase, comportant un tiroir de régulation actionné par un élément thermostatique. L'embase comprend également une pièce rapportée définissant une section de passage coaxiale avec un axe de la cartouche et conduisant à une sortie. En fonction de l'action de l'élément thermostatique, le tiroir est amené au contact de la pièce de façon à obturer la section de passage de cette dernière, pour ainsi empêcher le passage du flux d'eau chaude provenant d'un conduit de l'embase. La pièce rapportée est de forme tubulaire à base circulaire. En particulier, son siège est défini comme « annulaire ». Cela est confirmé par le fait que le tiroir est lui-même tubulaire à base circulaire. Cette forme autorise le passage d'un débit d'eau relativement élevé. Toutefois, l'espace occupé par l'embase le long de l'axe de la cartouche est relativement important, notamment du fait de l'orientation de l'élément thermostatique, si bien que cet ensemble n'est pas compatible avec des robinets pour lesquels l'espace alloué à l'embase est particulièrement faible. FR 3 003 046 A1 describes a cartridge, associated with a base, comprising a regulation slide actuated by a thermostatic element. The base includes also an insert defining a passage section coaxial with an axis of the cartridge and leading to an outlet. Depending on the action of the thermostatic element, the slide is brought into contact with the workpiece so as to close off the passage section of the latter, thereby preventing the flow of hot water coming from an air duct. the base. The insert is tubular in shape with a circular base. In particular, its seat is defined as "annular". This is confirmed by the fact that the drawer itself is tubular with a circular base. This shape allows the passage of a relatively high water flow. However, the space occupied by the base along the axis of the cartridge is relatively large, particularly because of the orientation of the thermostatic element, so that this assembly is not compatible with valves for which space allocated to the base is particularly low.
Par conséquent, l'invention vise à porter remède aux inconvénients de l'art antérieur en proposant une nouvelle unité de mélange qui permet de délivrer un débit élevé tout en s'adaptant à la plupart des robinets mitigeurs existants.  Therefore, the invention aims to overcome the disadvantages of the prior art by proposing a new mixing unit that allows to deliver a high flow while adapting to most existing mixer taps.
L'invention a pour objet une unité de mélange pour un robinet mitigeur, présentant une forme générale cylindrique définissant un axe principal de l'unité de mélange, l'unité de mélange comprenant :  The invention relates to a mixing unit for a mixing valve having a generally cylindrical shape defining a main axis of the mixing unit, the mixing unit comprising:
une première entrée d'un premier flux entrant de fluide présentant une première température,  a first input of a first inflow of fluid having a first temperature,
- une deuxième entrée d'un deuxième flux entrant de fluide présentant une deuxième température supérieure à la première température,  a second inlet of a second influx of fluid having a second temperature greater than the first temperature,
- une sortie pour un flux sortant de fluide,  an output for an outflow of fluid,
des moyens de mélange des premier et deuxième flux entrants pour former le flux sortant,  means for mixing the first and second incoming flows to form the outgoing flow,
- un col d'obturation de la deuxième entrée, qui est disposé en amont de la deuxième entrée en considération du sens du deuxième flux entrant, et  a closure collar of the second inlet, which is arranged upstream of the second inlet in consideration of the direction of the second incoming flow, and
- des moyens thermostatiques, qui comprennent :  thermostatic means, which comprise:
o un élément thermostatique incluant à la fois une partie thermosensible disposée au moins partiellement à la sortie, et une partie mobile en translation par rapport à la partie thermosensible selon un axe d'obturation, le col délimitant une section de passage définie perpendiculairement par rapport à l'axe d'obturation, et  a thermostatic element including both a thermosensitive portion disposed at least partially at the outlet, and a portion that is movable in translation relative to the thermosensitive portion along a shutter axis, the collar defining a passage section defined perpendicularly with respect to the shutter axis, and
o un obturateur, qui est complémentaire avec le col et qui est lié à la partie mobile de manière à évoluer, en fonction de la position de la partie mobile, entre une position d'obturation de la deuxième entrée dans laquelle l'obturateur est en contact étanche avec le col, et une position d'ouverture de la deuxième entrée dans laquelle l'obturateur est écarté du col. o a shutter, which is complementary to the neck and which is connected to the moving part so as to evolve, depending on the position of the movable part, between a closed position of the second input in which the shutter is in sealing contact with the neck, and an opening position of the second inlet in which the shutter is spaced from the neck.
Selon l'invention, la section de passage du col présente une largeur, mesurée perpendiculairement à l'axe principal, dont la valeur est supérieure à la valeur d'une hauteur de la section de passage, la hauteur étant mesurée perpendiculairement à la largeur.  According to the invention, the passage section of the neck has a width, measured perpendicularly to the main axis, whose value is greater than the value of a height of the passage section, the height being measured perpendicularly to the width.
Grâce à l'invention, le débit maximal du deuxième flux, pour une pression donnée, est augmenté, dans la mesure où la valeur de la largeur de la section de passage est relativement élevée, alors que l'encombrement du boîtier additionnel le long de l'axe principal est néanmoins particulièrement faible, la valeur de la hauteur de la section de passage étant relativement faible. Par « hauteur », on entend une dimension mesurée dans le plan de la section de passage. Par « largeur », on entend une dimension mesurée dans le plan de la section de passage.  Thanks to the invention, the maximum flow rate of the second flow, for a given pressure, is increased, insofar as the value of the width of the passage section is relatively high, while the size of the additional housing along the main axis is nevertheless particularly weak, the value of the height of the passage section being relatively small. By "height" is meant a dimension measured in the plane of the passage section. By "width" is meant a dimension measured in the plane of the passage section.
Selon des caractéristiques optionnelles et avantageuses de l'invention, prises seules ou en combinaison :  According to optional and advantageous features of the invention, taken alone or in combination:
la valeur de la largeur de la section de passage est supérieure à 1 ,2 fois la valeur de la hauteur de la section de passage, la valeur de la largeur de la section de passage étant préférentiellement égale à environ 1 ,6 fois la valeur de la hauteur de la section de passage ;  the value of the width of the passage section is greater than 1, 2 times the value of the height of the passage section, the value of the width of the passage section being preferably equal to approximately 1, 6 times the value of the height of the passage section;
la section de passage présente une forme sensiblement elliptique, la largeur formant le grand diamètre de la forme elliptique et la hauteur formant le petit diamètre de la forme elliptique ;  the passage section has a substantially elliptical shape, the width forming the large diameter of the elliptical shape and the height forming the small diameter of the elliptical shape;
l'axe d'obturation et l'axe principal ne sont pas parallèles et l'unité de mélange comprend un conduit en chicane qui comprend :  the shutter axis and the main axis are not parallel and the mixing unit comprises a baffle duct which comprises:
o une partie aval, qui s'étend à partir de la deuxième entrée parallèlement à l'axe principal,  a downstream part, which extends from the second input parallel to the main axis,
o une partie intermédiaire, qui est prolongée par la partie aval et s'étend selon l'axe d'obturation et qui inclut le col, lequel est coaxial avec l'axe d'obturation ;  o an intermediate portion, which is extended by the downstream portion and extends along the shutter axis and which includes the neck, which is coaxial with the shutter axis;
la partie intermédiaire comprend une sous-partie de guidage de l'obturateur en translation selon l'axe d'obturation, la sous-partie de guidage :  the intermediate portion comprises a guide sub-portion of the shutter in translation along the shutter axis, the guiding sub-portion:
o s'étendant à partir du col,  o extending from the neck,
o étant connectée fluidiquement à la partie aval, et  o being fluidly connected to the downstream portion, and
o étant de forme générale cylindrique, le long de l'axe d'obturation, avec une section elliptique présentant une largeur, mesurée perpendiculairement à l'axe principal, dont la valeur est supérieure à la valeur d'une hauteur de la section elliptique, la hauteur de la section elliptique étant mesurée perpendiculairement à la largeur de la section elliptique ; o being of cylindrical general shape, along the shutter axis, with an elliptical section having a width, measured perpendicular to the main axis, whose value is greater than the value of a height of the elliptical section, the height of the elliptical section being measured perpendicular to the width of the elliptical section;
la forme cylindrique de la sous-partie de guidage est prolongée par une conduite de logement débouchant à la sortie, et reliant ainsi la deuxième entrée à cette sortie, l'élément thermostatique étant monté au sein de la conduite de logement en obturant la conduite de logement de manière étanche ;  the cylindrical shape of the guiding sub-portion is extended by a housing duct leading to the outlet, and thus connecting the second inlet to this outlet, the thermostatic element being mounted within the housing duct by closing the duct housing tightly;
l'obturateur comprend un corps principal lié en translation à la partie mobile le long de l'axe d'obturation, le corps principal comprenant au moins deux nervures longitudinales par l'intermédiaire desquelles le corps principal est monté coulissant dans la sous-partie de guidage, le long de l'axe d'obturation ;  the shutter comprises a main body translationally connected to the movable part along the shutter axis, the main body comprising at least two longitudinal ribs through which the main body is slidably mounted in the subpart of guidance, along the shutter axis;
la partie intermédiaire comprend une sous-partie d'admission qui :  the intermediate part comprises an admission subpart which:
o prolonge la forme du col,  o prolongs the shape of the collar,
o est fluidiquement connectée à une partie amont du conduit en chicane, la partie amont s'étendant parallèlement à l'axe principal, et  o is fluidly connected to an upstream portion of the baffle duct, the upstream portion extending parallel to the main axis, and
o loge un élément de rappel élastique de l'obturateur depuis la position d'obturation vers la position d'ouverture ; et  o houses a resilient return member of the shutter from the closed position to the open position; and
l'obturateur comprend une garniture d'obturation, configurée pour entrer en contact étanche avec le col, sur tout le pourtour de la section de passage, lorsque l'obturateur est en position d'obturation.  the shutter comprises a sealing gasket, configured to come into sealing engagement with the neck, all the way around the passage section, when the shutter is in the closed position.
L'invention concerne également un robinet mitigeur équipé d'une unité de mélange tel que définie ci-avant.  The invention also relates to a mixing valve equipped with a mixing unit as defined above.
L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple non limitatif et faite en se référant aux dessins dans lesquels :  The invention will be better understood on reading the description which will follow, given solely by way of nonlimiting example and with reference to the drawings in which:
- les figures 1 et 2 sont des coupes longitudinales d'un robinet mitigeur comprenant une unité de mélange conforme à l'invention ;  - Figures 1 and 2 are longitudinal sections of a mixing valve comprising a mixing unit according to the invention;
- la figure 3 est une vue d'un détail de la figure 1 , à plus grande échelle, selon le cadre III ;  - Figure 3 is a view of a detail of Figure 1, on a larger scale, according to the frame III;
- la figure 4 est une coupe transversale inclinée de la figure 3, selon la ligne IV-IV représentée sur cette figure 3, des lignes de coupe l-l et ll-ll respectives des figures 1 et 2 étant représentées sur la figure 4 ; et  Fig. 4 is an inclined cross-section of Fig. 3 taken along line IV-IV shown in Fig. 3, with respective cutting lines 1-11 and 11-11 of Figs. 1 and 2 being shown in Fig. 4; and
- la figure 5 est une vue en perspective d'un boîtier additionnel de l'unité de mélange des figures précédentes, le boîtier étant coupé de la même façon que la figure 1 , des moyens thermostatiques que le boîtier renferme étant représentés non coupés. Les figures 1 et 2 illustrent un robinet mitigeur 1 dans lequel est insérée une unité de mélange 2. Le robinet mitigeur 1 est préférentiellement conçu pour être installé sur un bac du genre évier ou douche, ou plus généralement au sein d'une installation sanitaire. Le robinet mitigeur 1 comprend, de manière classique, un bec 3 à partir duquel un flux d'eau mitigé illustré par la flèche M1 est destiné à être émis. Le robinet 1 comprend également un corps 4, lequel forme un cylindre creux définissant un axe principal X4 qui est destiné à être disposé verticalement lorsque le robinet est monté sur l'installation sanitaire. - Figure 5 is a perspective view of an additional housing of the mixing unit of the preceding figures, the housing being cut in the same manner as Figure 1, thermostatic means that the housing encloses being shown uncut. Figures 1 and 2 illustrate a mixing valve 1 in which is inserted a mixing unit 2. The mixing valve 1 is preferably designed to be installed on a tray of the type sink or shower, or more generally within a sanitary installation. The mixing valve 1 comprises, in a conventional manner, a nozzle 3 from which a mixed flow of water illustrated by the arrow M1 is intended to be emitted. The valve 1 also comprises a body 4, which forms a hollow cylinder defining a main axis X4 which is intended to be arranged vertically when the valve is mounted on the sanitary installation.
Par commodité, la suite de la description est orientée par rapport à l'axe principal X4, en considérant que les termes « supérieur » et « haut » correspondent à une direction axiale tournée vers la partie haute de la figure 1 , tandis que les termes « inférieur » et « bas » correspondent à une direction axiale de sens opposé.  For convenience, the following description is oriented relative to the main axis X4, considering that the terms "upper" and "high" correspond to an axial direction facing the upper part of Figure 1, while the terms "Lower" and "lower" correspond to an axial direction of opposite direction.
En variante non illustrée, l'axe X4 est disposé selon une direction différente de la verticale et est par exemple horizontal.  As a variant not shown, the axis X4 is arranged in a direction different from the vertical and is for example horizontal.
Le bec 3 forme un conduit courbé qui s'étend à partir du corps 4 à l'oblique par rapport à l'axe principal X4, vers le haut, la courbure du bec 3 permettant d'orienter le flux d'eau mitigé M1 vers le bas. Le flux d'eau mitigé progresse ainsi à l'oblique vers le haut au sein du bec selon la flèche M2 jusqu'à l'extrémité libre de ce dernier.  The spout 3 forms a curved conduit extending from the body 4 obliquely to the main axis X4, upwards, the curvature of the spout 3 to guide the flow of mixed water M1 to the bottom. The mixed flow of water thus progresses obliquely upwards in the beak along the arrow M2 to the free end of the latter.
Le robinet mitigeur 1 comprend également une arrivée d'eau froide 5 qui est visible à la figure 2, et une arrivée d'eau chaude 6 qui est visible à la figure 1 , qui sont connectées au corps 4 au niveau d'une extrémité basse de ce dernier. L'arrivée d'eau froide 5 et l'arrivée d'eau chaude 6 sont prévues pour être connectées à des moyens d'alimentation en eau classiques de l'installation sanitaire, lesquels ne sont pas détaillés dans la présente description. L'eau froide progresse vers le haut dans l'arrivée 5, selon la flèche F1 , à une température Tf. L'eau chaude progresse quant à elle vers le haut dans l'arrivée 6, selon la flèche C1 , à une température Te. Les flux C1 et F1 sont mélangés au sein du robinet mitigeur 1 pour former le flux M1 , d'une température TM comprise entre Tf et Te, et de débit additionné des flux C1 et F1 . The mixing valve 1 also comprises a cold water inlet 5 which is visible in FIG. 2, and a hot water inlet 6 which can be seen in FIG. 1, which are connected to the body 4 at a low end. of the last. The cold water inlet 5 and the hot water inlet 6 are intended to be connected to conventional water supply means of the sanitary installation, which are not detailed in the present description. The cold water progresses upwards in the inlet 5, according to the arrow F1, at a temperature Tf. The hot water progresses upwards in the inlet 6, according to the arrow C1, at a temperature Te. The streams C1 and F1 are mixed within the mixing valve 1 to form the flow M1, a temperature T M between Tf and Te, and flow added streams C1 and F1.
L'unité de mélange 2 est logée au sein du corps 4, en étant insérée dans ce dernier par l'intermédiaire d'une ouverture supérieure 9 du corps 4 le long de l'axe principal X4. C'est dans cette unité de mélange 2 qu'est effectué le mélange des flux entrants F1 et C1 pour former le flux sortant M1 .  The mixing unit 2 is housed within the body 4, being inserted into the body 4 through an upper opening 9 of the body 4 along the main axis X4. It is in this mixing unit 2 that the mixing of the incoming flows F1 and C1 is performed to form the outgoing flow M1.
L'unité de mélange 2 présente une forme générale cylindrique coaxiale avec l'axe principal X4. L'unité de mélange 2 comprend d'une part une cartouche 1 1 , qui renferme des moyens 13 de mélange du premier flux entrant F1 et du deuxième flux entrant C1 pour former le flux sortant M1 , et d'autre part un boîtier additionnel 15 qui comprend une paroi supérieure 46 par l'intermédiaire de laquelle ledit boîtier 15 est monté en appui vers le haut contre une paroi inférieure 45 de la cartouche 1 1 le long de l'axe principal X4. Ainsi, la cartouche 1 1 est située en partie supérieure du corps 4, au-dessus du boîtier additionnel 15 qui est situé en partie inférieure du corps 4. The mixing unit 2 has a generally cylindrical shape coaxial with the main axis X4. The mixing unit 2 comprises, on the one hand, a cartridge 1 1, which contains means 13 for mixing the first incoming stream F1 and the second incoming stream C1 to form the outgoing stream M1, and on the other hand an additional box 15 which includes a upper wall 46 through which said housing 15 is mounted bearing upwardly against a lower wall 45 of the cartridge 1 1 along the main axis X4. Thus, the cartridge 1 1 is located in the upper part of the body 4, above the additional box 15 which is located in the lower part of the body 4.
Le boîtier additionnel 15 présente une face inférieure 24 par l'intermédiaire de laquelle il est lui-même en appui vers le bas contre une paroi d'appui 23 du corps 4. Cette dernière est sensiblement discoïde et s'étend radialement par rapport à l'axe principal X4. Les arrivées 5 et 6 des flux entrants F1 et C1 traversent la paroi d'appui 23 pour alimenter le boîtier additionnel 15 par la face inférieure 24. En pratique, les arrivées 5 et 6 sont respectivement connectées, de façon étanche, à une première entrée 19 du premier flux entrant F1 , et à une deuxième entrée 21 du deuxième flux entrant C1 débouchant en surface de la face inférieure 24.  The additional box 15 has a lower face 24 through which it is itself supported downwards against a bearing wall 23 of the body 4. The latter is substantially discoidal and extends radially relative to the main axis X4. The inlets 5 and 6 of the incoming flows F1 and C1 pass through the support wall 23 to supply the additional box 15 via the lower face 24. In practice, the inlets 5 and 6 are respectively connected, in a sealed manner, to a first inlet 19 of the first incoming flow F1, and a second input 21 of the second incoming flow C1 opening on the surface of the lower face 24.
Tel qu'illustré à la figure 2, le premier flux entrant progresse selon la flèche F1 jusqu'à la première entrée 19 et poursuit sa course au travers du boîtier additionnel 15 de bas en haut selon la flèche F2 dans un conduit traversant 25 du boîtier additionnel 15 présentant une forme sensiblement cylindrique le long d'un axe parallèle à l'axe principal X4, le conduit traversant 25 s'étendant à partir de la première entrée 19 jusqu'à une entrée 39 d'une chambre de mélange 27 de la cartouche 1 1 . Le conduit traversant 25 guide le premier flux entrant F2 jusqu'à la chambre de mélange 27 de la cartouche 1 1 , en traversant la paroi supérieure 46 du boîtier 15 à travers l'entrée 39. La chambre de mélange 27 appartient aux moyens de mélange 13.  As illustrated in FIG. 2, the first incoming flow progresses along the arrow F1 to the first input 19 and continues its travel through the additional box 15 from bottom to top along the arrow F2 in a conduit 25 passing through the housing. additional member 15 having a substantially cylindrical shape along an axis parallel to the main axis X4, the through conduit 25 extending from the first inlet 19 to an inlet 39 of a mixing chamber 27 of the cartridge 1 1. The through conduit 25 guides the first inward flow F2 to the mixing chamber 27 of the cartridge 1 1, passing through the upper wall 46 of the housing 15 through the inlet 39. The mixing chamber 27 belongs to the mixing means 13.
Parallèlement, tel qu'illustré à la figure 1 , le deuxième flux entrant entre dans le boîtier additionnel 15 par l'intermédiaire de la deuxième entrée 21 , et circule de bas en haut selon la flèche C2 au travers du boîtier additionnel 15 dans un conduit en chicane 32 qui s'étend généralement de bas en haut à partir de la deuxième entrée 21 . En l'espèce ce conduit en chicane 32 comprend une partie amont 31 , sensiblement parallèle à l'axe principal X4 et s'étendant à partir de la deuxième entrée 21 . Le conduit en chicane 32 comprend ensuite une partie intermédiaire 29, incluant un col d'obturation 30 par l'intermédiaire duquel le conduit en chicane 32 peut être obturé à l'aide d'un obturateur 87. La partie intermédiaire 29 prolonge la partie amont 31 selon un axe d'obturation X73 compris dans le plan de la figure 1 . L'axe d'obturation X73 n'est pas parallèle à l'axe X4, mais est au contraire incliné par rapport à ce dernier, de façon à ce que la partie intermédiaire 29 conduise le flux C2 selon une chicane. Enfin, le conduit en chicane 32 comprend une partie aval 35, sensiblement parallèle à l'axe principal X4 conduisant le deuxième flux entrant C2 jusqu'à la cartouche 1 1 et prolongeant la partie intermédiaire 29. La partie aval 35 traverse la paroi supérieure 46 du boîtier 15 et s'étend jusqu'à une deuxième entrée 41 de la chambre de mélange 27 de façon parallèle et non coaxiale avec la partie amont 31 . La partie intermédiaire 29 relie fluidiquement les parties amont 31 et aval 35, de façon oblique par rapport à ces dernières, de sorte que le conduit en chicane 32 forme un « S ». La partie aval 35 débouche dans la chambre de mélange 27 par l'intermédiaire d'une entrée 41 de cette dernière, à partie de laquelle la partie aval 35 s'étend. Ainsi, les deux flux entrant F2 et C2 sont admis au sein de la chambre de mélange 27 de la cartouche 1 1 pour y être mélangés et former un flux sortant M3 destiné à former le flux M1 . At the same time, as shown in FIG. 1, the second incoming flow enters the additional box 15 via the second input 21, and flows from bottom to top along the arrow C2 through the additional box 15 in a conduit in a baffle 32 which extends generally from the bottom upwards from the second input 21. In this case, this baffle duct 32 comprises an upstream portion 31 substantially parallel to the main axis X4 and extending from the second inlet 21. The baffle duct 32 then comprises an intermediate portion 29, including a closure neck 30 through which the baffle duct 32 can be closed with a shutter 87. The intermediate portion 29 extends the upstream portion 31 along an axis of shutter X73 included in the plane of Figure 1. The shutter axis X73 is not parallel to the axis X4, but is on the contrary inclined with respect to the latter, so that the intermediate portion 29 leads the flow C2 in a baffle. Finally, the baffle duct 32 comprises a downstream portion 35, substantially parallel to the main axis X4 leading the second incoming flow C2 to the cartridge 1 1 and extending the intermediate portion 29. The downstream portion 35 passes through the upper wall 46 of the housing 15 and extends to a second inlet 41 of the mixing chamber 27 in parallel and non-coaxial manner with the upstream portion 31. The intermediate portion 29 fluidly connects the upstream 31 and downstream portions 35, obliquely to the latter, so that the baffle duct 32 forms an "S". The downstream portion 35 opens into the mixing chamber 27 through an inlet 41 of the latter, from which the downstream portion 35 extends. Thus, the two incoming flows F2 and C2 are admitted within the mixing chamber 27 of the cartridge 1 1 to be mixed and form an outflow M3 for forming the flow M1.
La chambre de mélange 27 comprend l'entrée 39 pour le premier flux F2, une l'entrée 41 pour le deuxième flux C2, ainsi qu'une sortie 43 pour le flux sortant M3, comme cela est notamment visible sur les figures 1 , 2 et 3. Les entrées 39, 41 et la sortie 43 débouchent en surface de la paroi inférieure 45 de la cartouche 1 1 . En l'espèce, la paroi inférieure 45 est de forme généralement discoïde centrée sur l'axe principal X4, les entrées 39 et 41 ainsi que la sortie 43 étant réparties autour de l'axe principal X4. Les entrées 39, 41 et la sortie 43 sont respectivement entourées par des joints d'étanchéité 44, 48 et 52, montés en surface de la paroi inférieure 45, afin d'assurer l'étanchéité de l'assemblage entre la cartouche 1 1 et le boîtier additionnel, par écrasement des joints 44, 48 et 52 contre la paroi supérieure 46 du boîtier 15.  The mixing chamber 27 comprises the inlet 39 for the first stream F2, the inlet 41 for the second stream C2, and an outlet 43 for the outflow M3, as can be seen in particular in FIGS. and 3. The inlets 39, 41 and the outlet 43 open at the surface of the lower wall 45 of the cartridge 11. In this case, the bottom wall 45 is of generally discoid shape centered on the main axis X4, the inputs 39 and 41 and the outlet 43 being distributed around the main axis X4. The inlets 39, 41 and the outlet 43 are respectively surrounded by seals 44, 48 and 52, mounted on the surface of the bottom wall 45, in order to seal the connection between the cartridge 1 1 and the additional housing, by crushing the seals 44, 48 and 52 against the upper wall 46 of the housing 15.
Dans l'exemple illustré, les moyens de mélange 13 comprennent un ensemble de disques de mélange 13A, 13B et 13C, qui sont contenus dans la chambre de mélange 27, comme cela est visible sur les figures 1 et 2. Les disques de mélange 13A, 13B et 13C sont en contact surfaciques les uns avec les autres et s'étendent dans des plans orthogonaux à l'axe principal X4. L'ensemble de disques de mélange comprend un disque supérieur 13A, un disque intermédiaire 13B et un disque inférieur 13C, les disques supérieur 13A et intermédiaire 13B étant mobiles par rapport au disque 13C qui est fixe, le disque intermédiaire 13B étant en contact glissant et étanche avec le disque 13C. Les disques intermédiaire 13B et inférieur 13C comprennent un système de canaux et d'ouïes, non représenté, qui est connecté aux entrées 39 et 41 ainsi qu'à la sortie 43 et qui, en fonction de la position relative des disques 13B et 13C, règle le débit respectif des flux entrants F2 et C2 admis au sein de l'ensemble de disques par les entrées 39 et 41 . Tel que représentés par les flèches F3 et C3, les flux entrants circulent dans le système de canaux et d'ouïes et passent d'abord au travers du disque inférieur 13C, puis dans le disque intermédiaire 13B. Les flux entrants F3 et C3 circulent ensuite à nouveau au travers du disque inférieur 13C de haut en bas. Au cours de leur passage au sein des disques 13A, 13B et 13C, où les flux entrants F3 et C3 sont mis en contact pour être mélangés et former le flux sortant M3. Le flux sortant M3 est à température TM, le rapport des débits des flux entrants F3 et C3 permettant de régler la température TM, et la valeur des débits des flux entrants F3 et C3 permettant de régler le débit du flux sortant M3. En pratique, la section de passage des flux entrants F3 et C3 varie en fonction de la position relative des disques 13B et 13C, par mise en communication des canaux et des ouïes susmentionnés. Les disques céramiques et leur système de canaux ne sont pas décrits plus en détails car ils constituent des moyens de mélange bien connus en tant que tels, et décrits par exemple dans FR-B1 -2 876 433. On comprend également que, même si l'on préfère la mise en œuvre d'une chambre de mélange à disques céramiques, tous moyens de mélange connus et habituellement mis en œuvre dans les cartouches pour robinets mitigeurs peuvent être utilisés à la place. In the illustrated example, the mixing means 13 comprise a set of mixing discs 13A, 13B and 13C, which are contained in the mixing chamber 27, as can be seen in FIGS. 1 and 2. The mixing discs 13A , 13B and 13C are in surface contact with each other and extend in planes orthogonal to the main axis X4. The set of mixing discs comprises an upper disc 13A, an intermediate disc 13B and a lower disc 13C, the upper discs 13A and 13B intermediate being movable relative to the disc 13C which is fixed, the intermediate disc 13B being in sliding contact and sealed with the 13C disc. Intermediate discs 13B and lower 13C comprise a system of channels and gills, not shown, which is connected to inputs 39 and 41 as well as to output 43 and which, depending on the relative position of discs 13B and 13C, regulates the respective flow rate of the incoming flows F2 and C2 admitted within the set of disks by the inputs 39 and 41. As represented by the arrows F3 and C3, the inflow flows through the system of channels and gills and passes first through the lower disk 13C, then into the intermediate disk 13B. The incoming flows F3 and C3 then flow again through the lower disk 13C from top to bottom. During their passage through the disks 13A, 13B and 13C, where the incoming flows F3 and C3 are brought into contact to be mixed and form the outgoing flow M3. The outgoing flow M3 is at temperature T M , the ratio flow rates of the incoming flows F3 and C3 for adjusting the temperature T M , and the value of the flow rates of the incoming flows F3 and C3 for adjusting the flow of the outgoing flow M3. In practice, the passage section of the incoming flows F3 and C3 varies as a function of the relative position of the disks 13B and 13C, by placing in communication the aforementioned channels and gills. Ceramic discs and their channel system are not described in more detail because they constitute well-known mixing means as such, and described for example in FR-B1 -2 876 433. It is also understood that, even if It is preferred to use a ceramic disk mixing chamber, any known mixing means and usually used in mixing valve cartridges may be used instead.
Le flux sortant M3 formé par mélange au sein de la chambre de mélange 27 est alors évacué hors de cette dernière, et hors de la cartouche 1 1 , jusque dans une chambre de sortie 37 du robinet mitigeur 1 , conduisant le flux sortant M3 de haut en bas jusqu'à une sortie 47 ménagée au travers de la paroi d'appui 23. Les arrivées 5 et 6 et la sortie 47 sont réparties autour de l'axe principal X4. Le boîtier additionnel 15 comprend une couronne d'étanchéité 71 de forme circulaire qui est centrée sur l'axe principal X4. En l'espèce, la couronne d'étanchéité 71 s'étend dans un plan orthogonal P71 par rapport à l'axe X4, en faisant saillie de façon centrifuge par rapport à l'axe X4, à partir de la paroi supérieure 46 du boîtier 15 de manière à être en contact étanche le corps 4. En l'espèce, la couronne d'étanchéité comprend une gorge circulaire ouverte radialement vers l'extérieur, au sein de laquelle est ménagé un joint torique écrasé au contact du corps 4, comme illustré sur les figures 1 et 2. La couronne d'étanchéité 71 délimite ainsi une partie supérieure de la chambre de sortie 37, cette dernière étant également délimitée latéralement par la paroi du corps 4, et en bas par la paroi d'appui 23. Comme cela est visible sur la figure 4, la chambre de sortie 37, le conduit traversant 25 et le conduit en chicane 32 sont répartis régulièrement autour de l'axe principal X4. Tel qu'illustré aux figures 1 et 2, le flux sortant M3 est ainsi déversé au sein d'une chambre basse 50, du corps 4 par l'intermédiaire de la sortie 47. La chambre basse 50 est délimitée en haut par la paroi 23, latéralement par le corps 4 et en bas par un fond 49 du robinet mitigeur 1 . Le fond 49 est sensiblement discoïde et orthogonal à l'axe principal X4, et ferme le corps 4 à l'extrémité inférieure de ce dernier. Dans la chambre basse 50, le flux sortant M3 est conduit, selon la flèche M4, jusqu'au bec 3, par l'intermédiaire d'une ouverture d'accès 51 ménagée dans la paroi du corps 4 radialement par rapport à l'axe principal X4, mettant en communication la chambre basse 50 avec le bec 3. Dans le bec 3, le flux sortant M4 devient le flux sortant M2, puis le flux sortant M1 , mentionnés dans ce qui précède. L'unité de mélange 2 comprend en outre un levier 7 qui est monté mobile au sommet de la cartouche 1 1 , de manière à dépasser du corps 4 par l'intermédiaire de l'ouverture supérieure 9, pour permettre à un utilisateur d'actionner le levier 7. L'actionnement du levier 7 permet de commander les moyens de mélange 13, et en particulier de mouvoir les disques supérieur 13A et intermédiaire 13B en rotation autour d'un axe parallèle à l'axe principal X4, ou autour de l'axe X4 lui-même, et en translation selon un axe X13 qui est orthogonal à l'axe principal X4. De manière générale, le levier 7 forme un organe de commande pour actionner au moins l'un des disques 13A, 13B et 13C, et ainsi commander le débit respectif du premier flux entrant F1 et du deuxième flux entrant C1 . Ainsi, l'organe de commande 7 permet de régler à la fois la température et le débit du flux sortant M1 par réglage de la position relative des disques de l'ensemble de disques 13A, 13B et 13C. Le robinet mitigeur 1 et la cartouche 1 1 peuvent ainsi être qualifiés de « monocommandes » dans la mesure où le levier 7 permet de commander à la fois le débit et la température du flux sortant M1 par réglage des débits des flux entrants F1 et C1 . En pratique, le levier 7 est : The outflow M3 formed by mixing within the mixing chamber 27 is then discharged out of the latter, and out of the cartridge 1 1, into an outlet chamber 37 of the mixer tap 1, leading the outgoing flow M3 from above. bottom to an outlet 47 formed through the support wall 23. The arrivals 5 and 6 and the outlet 47 are distributed around the main axis X4. The additional box 15 comprises a sealing ring 71 of circular shape which is centered on the main axis X4. In this case, the sealing ring 71 extends in an orthogonal plane P71 relative to the axis X4, projecting centrifugally with respect to the axis X4, from the upper wall 46 of the housing 15 in this case, the sealing ring comprises a circular groove open radially outwards, within which is formed a crushed O-ring in contact with the body 4, as 1 and 2. The sealing ring 71 thus delimits an upper portion of the outlet chamber 37, the latter also being delimited laterally by the wall of the body 4, and at the bottom by the bearing wall 23. As can be seen in FIG. 4, the outlet chamber 37, the through duct 25 and the baffle duct 32 are regularly distributed around the main axis X4. As illustrated in FIGS. 1 and 2, the outflow M3 is thus discharged into a low chamber 50, of the body 4 via the outlet 47. The lower chamber 50 is delimited at the top by the wall 23 , laterally by the body 4 and bottom by a bottom 49 of the mixer tap 1. The bottom 49 is substantially discoidal and orthogonal to the main axis X4, and closes the body 4 at the lower end thereof. In the lower chamber 50, the outflow M3 is led, according to the arrow M4, to the spout 3, via an access opening 51 formed in the wall of the body 4 radially relative to the axis main X4, placing in communication the lower chamber 50 with the spout 3. In the spout 3, the outflow M4 becomes the outflow M2, then the outflow M1, mentioned above. The mixing unit 2 further comprises a lever 7 which is movably mounted at the top of the cartridge 1 1, so as to protrude from the body 4 via the upper opening 9, to allow a user to operate. the lever 7. The actuation of the lever 7 makes it possible to control the mixing means 13, and in particular to move the upper and intermediate disks 13A and 13B in rotation about an axis parallel to the main axis X4, or around the X4 axis itself, and in translation along an axis X13 which is orthogonal to the main axis X4. In general, the lever 7 forms a control member for actuating at least one of the disks 13A, 13B and 13C, and thus to control the respective flow rate of the first incoming flow F1 and the second incoming flow C1. Thus, the control member 7 makes it possible to adjust both the temperature and the flow rate of the outflow M1 by adjusting the relative position of the disks of the disk assembly 13A, 13B and 13C. The mixing valve 1 and the cartridge 1 1 can thus be described as "single-command" insofar as the lever 7 makes it possible to control both the flow rate and the temperature of the outgoing flow M1 by adjusting the flow rates of the incoming flows F1 and C1. In practice, the lever 7 is:
- pivotant autour de l'axe principal X4, ce qui entraîne une rotation des disques supérieur 13A et 13B autour de ce même axe, afin de régler le rapport entre le débit du premier et du deuxième flux entrants F1 et C1 et donc la température du flux sortant M1 , et  pivoting about the main axis X4, which causes the upper discs 13A and 13B to rotate about this same axis, in order to adjust the ratio between the flow rate of the first and second incoming flows F1 and C1 and thus the temperature of the outgoing flow M1, and
- pivotant autour d'un deuxième axe X7 qui est orthogonal à l'axe principal X4 afin de translater les disques supérieurs 13A et 13B le long de l'axe X13 et de faire varier équitablement le débit du premier et du deuxième flux, pour régler le débit du flux sortant.  pivoting about a second axis X7 which is orthogonal to the main axis X4 in order to translate the upper disks 13A and 13B along the axis X13 and to vary the flow rate of the first and second flows equitably, to adjust the outgoing flow rate.
Le levier 7 est lié à l'ensemble de disques 13A, 13B et 13C, c'est-à-dire aux moyens de mélange 13, par un mécanisme de manœuvre qui n'est pas décrit plus en détail, dans la mesure où il est connu en tant que tel.  The lever 7 is connected to the set of disks 13A, 13B and 13C, that is to say to the mixing means 13, by an operating mechanism which is not described in more detail, insofar as it is known as such.
La cartouche 1 1 comprend un capot 53, qui forme une paroi d'enveloppe extérieure de la cartouche 1 1 , sensiblement cylindrique à base circulaire autour de l'axe principal X4. Le capot 53 renferme les moyens de mélange 13, en délimitant latéralement la chambre 27. Le capot 53 renferme également la base du levier 7, la cartouche comprenant une couronne 63, rapportée sur une extrémité supérieure du capot 53, par l'intermédiaire de laquelle un écrou 65, centré autour de l'axe principal X4, plaque l'unité de mélange 2 contre la paroi d'appui 23. En pratique, l'écrou 65 comporte un filetage extérieur qui est vissé dans un filetage intérieur 69 de l'ouverture supérieure 9 du corps 4, le filetage 69 étant centré sur l'axe X4. L'unité de mélange 2 comprend également des moyens thermostatiques, visibles notamment sur la figure 1 , qui comprennent en premier lieu un élément thermostatique 73, s'étendant selon l'axe d'obturation X73. Dans l'exemple illustré aux figures, l'axe d'obturation X73 et le plan orthogonal P71 sont sécants. Cependant, l'axe d'obturation X73 pourrait être choisi parallèle avec le plan P71 . The cartridge 1 1 comprises a cover 53, which forms an outer casing wall of the cartridge 1 1, substantially cylindrical with a circular base around the main axis X4. The cover 53 encloses the mixing means 13, laterally delimiting the chamber 27. The cover 53 also encloses the base of the lever 7, the cartridge comprising a ring 63, attached to an upper end of the cover 53, through which a nut 65, centered around the main axis X4, plates the mixing unit 2 against the bearing wall 23. In practice, the nut 65 has an external thread which is screwed into an internal thread 69 of the upper opening 9 of the body 4, the thread 69 being centered on the axis X4. The mixing unit 2 also comprises thermostatic means, visible in particular in Figure 1, which comprise in the first place a thermostatic element 73, extending along the axis of closure X73. In the example illustrated in the figures, the shutter axis X73 and the orthogonal plane P71 are intersecting. However, the shutter axis X73 could be chosen parallel with the plane P71.
Comme cela est notamment visible à la figure 3, le long de l'axe d'obturation X73, l'élément thermostatique 73 inclut une partie thermosensible 75 montée dans une conduite de logement 79 qui prolonge la partie intermédiaire 29 le long de l'axe d'obturation X79 et débouche dans la chambre de sortie 37. La conduite de logement 79 est ainsi ménagée dans le boîtier additionnel 15 de façon à relier la chambre de sortie 37 et l'entrée 41 .  As can be seen in particular in FIG. 3, along the shutter axis X73, the thermostatic element 73 includes a thermosensitive portion 75 mounted in a housing conduit 79 which extends the intermediate portion 29 along the axis. X79 shutter and opens into the outlet chamber 37. The housing pipe 79 is thus formed in the additional housing 15 so as to connect the outlet chamber 37 and the inlet 41.
La partie thermosensible 75 forme une partie fixe de l'élément thermostatique 73 et comprend en particulier, le long de l'axe d'obturation X73, une coupelle 81 qui dépasse de la conduite de logement 79 et qui s'étend dans le passage du flux sortant M3, à la sortie 47. La coupelle 81 présente une forme généralement cylindrique à base circulaire centrée sur l'axe d'obturation X73, et renferme un corps thermo-dilatable qui est par exemple une cire adaptée. La coupelle 81 étant en contact avec le flux sortant M3, le corps thermo-dilatable se dilate et se contracte en fonction de la température TM du flux sortant M3. The thermosensitive part 75 forms a fixed part of the thermostatic element 73 and comprises in particular, along the closure axis X73, a cup 81 which protrudes from the housing pipe 79 and which extends into the passage of the outflow M3, at the outlet 47. The cup 81 has a generally cylindrical shape with a circular base centered on the shutter axis X73, and encloses a heat-expandable body which is for example a suitable wax. The cup 81 being in contact with the outflow M3, the heat-expandable body expands and contracts as a function of the temperature T M of the outflow M3.
La partie thermosensible 75 comprend également un guide 83, qui prolonge la coupelle 81 le long de l'axe d'obturation X73, et par l'intermédiaire duquel la partie thermosensible 75 est montée dans la conduite de logement 79. Le guide 83 présente une forme de vis, avec un filetage extérieur, autour de l'axe d'obturation X73, et s'étend au moins en partie au sein de la conduite de logement 79. En l'espèce, le guide 83 est vissé au sein d'une bague de support 84 pourvue d'un filetage intérieur, coaxial avec l'axe X73, la bague de support 84 étant elle-même fixée au sein d'une partie extrémale 90 de la conduite de logement 79. La partie extrémale 90 s'étend du côté de la sortie 47, en débouchant sur la chambre de sortie 37. La bague de support 84 est partiellement insérée dans la partie extrémale 90, et présente une garniture d'étanchéité 92 complémentaire avec la conduite de logement 79, de manière à obturer cette dernière de façon étanche et ainsi prévenir tout transfert d'eau du deuxième flux C2 dans la sortie 47 via la conduite de logement 79. La bague 84 de support est fixée à la conduite de logement 79 à l'aide d'éléments de fixation 94 schématisés sur la figure 2, du genre vis. Les éléments de fixation 94 sont implantés dans une paroi de la chambre 37, laquelle forme la périphérie de la partie extrémale 90. L'élément thermostatique 73 est ainsi logé dans la conduite de logement 79 en obturant de manière étanche la communication entre la sortie 47 et la deuxième entrée 21 . The thermosensitive portion 75 also includes a guide 83, which extends the cup 81 along the shutter axis X73, and through which the thermosensitive portion 75 is mounted in the housing conduit 79. screw form, with an external thread, around the shutter axis X73, and extends at least partially within the housing conduit 79. In this case, the guide 83 is screwed within a support ring 84 provided with an internal thread, coaxial with the axis X73, the support ring 84 being itself fixed within an end portion 90 of the housing conduit 79. The end portion 90 is extends on the output side 47, opening on the outlet chamber 37. The support ring 84 is partially inserted in the end portion 90, and has a seal 92 complementary to the housing conduit 79, so as to seal it tightly and prevent any transfer of water from the second flow C2 into the outlet 47 via the housing conduit 79. The support ring 84 is attached to the housing conduit 79 by means of fixing elements 94 shown diagrammatically in FIG. kind of screw. The fixing elements 94 are implanted in a wall of the chamber 37, which forms the periphery of the end portion 90. The thermostatic element 73 is thus housed in the pipe of housing 79 closing the communication between the outlet 47 and the second inlet 21 in a sealed manner.
L'élément thermostatique 73 comprend également une partie mobile 77, qui forme un piston cylindrique coaxial avec l'axe d'obturation X73. La partie mobile 77 est montée au sein du guide 83, de façon à pouvoir translater par rapport à la partie thermosensible 75 à l'écart de la partie thermosensible 75, en direction du conduit en chicane 32, selon l'axe d'obturation X73 sous l'action du corps thermo-dilatable contenu dans la coupelle 81 .  The thermostatic element 73 also includes a movable portion 77, which forms a cylindrical piston coaxial with the shutter axis X73. The movable portion 77 is mounted within the guide 83, so as to be translatable relative to the thermosensitive portion 75 away from the thermosensitive portion 75, in the direction of the baffle duct 32, along the axis of closure X73 under the action of the thermo-expandable body contained in the cup 81.
L'obturateur 87 de l'élément thermostatique 73, est prévu au sein de la partie intermédiaire 29, et est conçu pour être déplacé en translation selon l'axe d'obturation X73 par la partie mobile 77 jusqu'à une position d'obturation dans laquelle l'obturateur 87 est en contact étanche avec le col d'obturation 30. L'entrée 41 est alors obturée, le col d'obturation 30 étant disposé en amont de cette dernière, en considération du sens du flux C2. Le passage du flux C2 au travers de l'entrée 41 est alors interrompu, au moins en majorité. L'obturateur 87 est également configuré pour être mû jusqu'à une position d'ouverture de l'entrée 41 , dans laquelle l'obturateur 87 est écarté du col d'obturation de manière à autoriser le passage du flux C2. On note que seule la position d'ouverture est représentée aux figures.  The shutter 87 of the thermostatic element 73, is provided within the intermediate portion 29, and is designed to be moved in translation along the shutter axis X73 by the movable portion 77 to a closed position wherein the shutter 87 is in sealing contact with the sealing neck 30. The inlet 41 is then closed, the closure neck 30 being disposed upstream of the latter, in consideration of the direction of flow C2. The flow C2 flow through the input 41 is then interrupted, at least a majority. The shutter 87 is also configured to be moved to an open position of the inlet 41, in which the shutter 87 is spaced from the sealing collar so as to allow the passage of the stream C2. Note that only the open position is shown in the figures.
Plus précisément, l'obturateur 87 comprend un corps principal 88 qui est agencé par rapport à la partie mobile 77 de manière à ce que cette dernière puisse pousser l'obturateur 87 le long de l'axe X73. En l'espèce, la partie mobile 77 est en contact avec le corps principal 88 de l'obturateur 87 de façon à pousser ce dernier à l'écart de la partie thermosensible 75 dans une direction D1 parallèle à l'axe X73, sous l'action du corps thermodilatable contenu dans la coupelle 81 , jusqu'à la position d'obturation. L'obturateur 87 comprend également une garniture 26 d'obturation du col 30, formée par exemple par un joint externe monté en périphérie du corps principal 88. La garniture 26 est complémentaire, en forme, avec le col d'obturation 30.  Specifically, the shutter 87 comprises a main body 88 which is arranged relative to the movable portion 77 so that the latter can push the shutter 87 along the axis X73. In this case, the movable portion 77 is in contact with the main body 88 of the shutter 87 so as to push the latter away from the thermosensitive portion 75 in a direction D1 parallel to the axis X73, under the action of the thermodilatable body contained in the cup 81, to the closed position. The shutter 87 also comprises a seal 26 for closing the neck 30, formed for example by an outer seal mounted on the periphery of the main body 88. The lining 26 is complementary, in shape, with the sealing neck 30.
Le col d'obturation 30 délimite une section de passage S30 du deuxième flux entrant C2 visible aux figures 3 à 5. En d'autres termes, le contour de la section de passage S30 est dessiné par le col 30. On définit la section de passage S30 perpendiculairement à l'axe X73. En position d'obturation, la garniture d'obturation 26 vient en contact étanche avec le col d'obturation 30, sur tout le pourtour de la section de passage S30, pour obturer la partie intermédiaire 29. On comprend qu'une portion centrale de la section de passage S30 est susceptible d'occupée par l'obturateur 87 en fonction de la position de ce dernier, de sorte que le flux C2 passer entre le col 30 et le contour de l'obturateur 87. En tout état de cause, la section de passage S30 présente une largeur L30, visible aux figures 4 et 5 et mesurée perpendiculairement à l'axe principal X4 et à l'axe X73, et une hauteur H30, visible aux figures 3 et 5 et mesurée perpendiculairement à la largeur L30. La section S30 présente une forme sensiblement elliptique, la valeur de la largeur L30 étant supérieure à la valeur de la hauteur H30. En d'autres termes, la largeur L30 forme le grand diamètre de la forme elliptique de la section S30, alors que la hauteur H30 forme le petit diamètre de cette forme elliptique La section de passage S30 présente ainsi un encombrement minimal dans le sens de l'axe X4 tout en autorisant le passage d'un débit important pour le flux C2, minimisant ainsi la perte de charge au sein du boîtier 15. De préférence, la valeur de la largeur L30 de la section de passage S30 est supérieure à 1 ,2 fois la valeur de la hauteur H30 de la section de passage S30. Par exemple, la valeur de la largeur L30 de la section de passage S30 est égale à environ 1 ,6 fois la valeur de la hauteur H30 de la section de passage S30. The closure neck 30 delimits a passage section S30 of the second incoming flow C2 visible in FIGS. 3 to 5. In other words, the contour of the passage section S30 is drawn by the neck 30. The section of S30 passage perpendicular to the axis X73. In the closed position, the sealing gasket 26 comes into sealed contact with the sealing neck 30, all around the passage section S30, to seal the intermediate portion 29. It is understood that a central portion of the passage section S30 is capable of being occupied by the shutter 87 as a function of the position of the latter, so that the flow C2 passes between the neck 30 and the contour of the shutter 87. In any case, the passage section S30 has a width L30, visible in Figures 4 and 5 and measured perpendicularly to the main axis X4 and the axis X73, and a height H30, visible in Figures 3 and 5 and measured perpendicularly to the width L30. The section S30 has a substantially elliptical shape, the value of the width L30 being greater than the value of the height H30. In other words, the width L 30 forms the large diameter of the elliptical shape of the section S 30, whereas the height H 30 forms the small diameter of this elliptical shape. The passage section S 30 thus has a minimum space requirement in the direction of the X4 axis while allowing the passage of a large flow rate C2 flow, thereby minimizing the pressure drop within the housing 15. Preferably, the value of the width L30 of the passage section S30 is greater than 1, 2 times the value of the height H30 of the passage section S30. For example, the value of the width L 30 of the passage section S 30 is equal to about 1.6 times the value of the height H 30 of the passage section S 30.
Comme cela est visible à la figure 5, la garniture d'obturation 26 présente une forme elliptique, correspondant à la forme de la section de passage S30, et par exemple une section circulaire, comme cela est visible sur les figures 3 et 4, pour garantir l'étanchéité du contact avec le col 30 en position de fermeture. Au lieu d'une section circulaire, d'autres formes de section sont envisageables. Le col 30 forme quant à lui un chanfrein tronconique contournant la section S30. Dans le présent exemple, le col 30 est coaxial avec l'axe X73. Alternativement, le col 30 est incliné par rapport à l'axe X73, tout en étant traversé par ce dernier.  As can be seen in FIG. 5, the closure seal 26 has an elliptical shape, corresponding to the shape of the passage section S30, and for example a circular section, as can be seen in FIGS. 3 and 4, for guarantee the sealing of the contact with the neck 30 in the closed position. Instead of a circular section, other forms of section are conceivable. The neck 30 in turn forms a frustoconical chamfer bypassing the section S30. In the present example, the neck 30 is coaxial with the axis X73. Alternatively, the neck 30 is inclined relative to the axis X73, while being traversed by the latter.
La partie intermédiaire 29 comprend une sous-partie de guidage 91 en translation de l'obturateur 87 et une sous-partie d'admission 93 du flux C2 au sein de la partie intermédiaire 29, ces deux sous-parties 91 et 93 étant reliées par le col d'obturation 30, s'étendant dans une zone intermédiaire de la partie intermédiaire 29.  The intermediate portion 29 comprises a guiding sub-portion 91 in translation of the shutter 87 and an intake sub-portion 93 of the flow C2 within the intermediate portion 29, these two sub-portions 91 and 93 being connected by the closure neck 30, extending in an intermediate zone of the intermediate portion 29.
En l'espèce, la sous-partie de guidage 91 s'étend le long de l'axe X73 à partir du col d'obturation 30, jusqu'à la conduite de logement 79, en étant connectée fluidiquement à la partie aval 35 entre le col d'obturation 30 et la conduite de logement 79. La sous- partie d'admission 93 prolonge quant à elle le col d'obturation 30 le long de l'axe X73 jusqu'à la partie amont 31 .  In this case, the guiding sub-portion 91 extends along the X73 axis from the sealing neck 30, to the housing conduit 79, being fluidly connected to the downstream portion 35 between the sealing neck 30 and the housing pipe 79. The intake sub-portion 93 extends the closure neck 30 along the axis X73 to the upstream portion 31.
La sous-partie de guidage 91 est de forme générale cylindrique, le long de l'axe d'obturation X73. Cette forme cylindrique, à l'image du col d'obturation 30, présente une section S91 , c'est-à-dire une section orthogonale par rapport à l'axe X73, de forme elliptique, ou pour le moins homothétique avec la forme de la section de passage S30. La section S91 présentant une largeur L91 , mesurée perpendiculairement à l'axe principal et parallèlement à la largeur L30, et une hauteur H91 , mesurée perpendiculairement à la largeur de la section S91 et donc parallèlement à la hauteur H30. La valeur de la largeur L91 de la section S91 est supérieure à celle de la hauteur H91 de cette section S91 , afin de faciliter le passage du flux C2 tout en minimisant l'espace occupé dans le sens de l'axe principal X4. The guiding sub-portion 91 is generally cylindrical in shape, along the shutter axis X73. This cylindrical shape, like the closure neck 30, has a section S91, that is to say a section orthogonal to the axis X73, of elliptical shape, or at least homothetic with the shape of the passage section S30. Section S91 having a width L91, measured perpendicular to the main axis and parallel to the width L30, and a height H91, measured perpendicular to the width of the section S91 and therefore parallel to the height H30. The width value L91 of the section S91 is greater than that of the height H91 of this section S91, to facilitate the passage of the flow C2 while minimizing the space occupied in the direction of the main axis X4.
La conduite de logement 79 prolonge la partie de guidage 91 , dans la continuité de sa forme cylindrique le long l'axe X73, de sorte que la conduite de logement 79 présente elle-même une forme cylindrique le long de l'axe X73, avec la même section S91 .  The housing conduit 79 extends the guide portion 91, in the continuity of its cylindrical shape along the axis X73, so that the housing conduit 79 itself has a cylindrical shape along the axis X73, with the same section S91.
Le corps principal 88 de l'obturateur 87 comprend quatre nervures 86, dont trois sont visibles sur la figure 5, réparties autour de l'axe X73 et s'étendant parallèlement à cet axe X73. Les nervures 86 forment ensemble des moyens de guidage en translation de l'obturateur 87, par l'intermédiaire desquels l'obturateur 87 est monté coulissant dans la sous-partie de guidage 91 et dans une partie de la conduite de logement 79 s'étendant à partir de la sous-partie de guidage 91 . En pratique, les nervures 86 sont en appui glissant contre la paroi interne cylindrique continue de la conduite de logement 79 et de la sous- partie de guidage 91 . En variante, on comprend que l'obturateur 87 inclut au moins deux nervures 86 assurant son support et son guidage en translation le long de l'axe X73. En tout état de cause, l'espace interstitiel ménagé entre les nervures 86, le corps principal 88 et la paroi cylindrique de la conduite de logement 79 et de la sous-partie de guidage 91 , est apte à admettre une partie du flux C2, ce qui facilite sa circulation.  The main body 88 of the shutter 87 comprises four ribs 86, of which three are visible in Figure 5, distributed around the axis X73 and extending parallel to this axis X73. The ribs 86 together form guide means in translation of the shutter 87, through which the shutter 87 is slidably mounted in the guiding sub-portion 91 and in a portion of the housing pipe 79 extending from the guiding sub-portion 91. In practice, the ribs 86 bear sliding against the continuous cylindrical inner wall of the housing pipe 79 and the guiding sub-portion 91. Alternatively, it is understood that the shutter 87 includes at least two ribs 86 providing its support and its translation guide along the axis X73. In any case, the interstitial space formed between the ribs 86, the main body 88 and the cylindrical wall of the housing pipe 79 and the guiding sub-portion 91, is able to admit a portion of the flow C2, which facilitates its circulation.
Le corps principal 88 de l'obturateur 87 est monté en compression entre l'extrémité libre de la partie mobile 77 et un ressort de rappel 89 logé dans la sous-partie d'admission 93. Le ressort de rappel 89 est monté en compression entre le corps principal 88 et une paroi opposée 28 de la sous-partie d'admission 93, la paroi opposée 28 étant située à une extrémité de la partie intermédiaire 29 opposée à la partie extrémale 90. La paroi opposée 28 s'étend dans un plan orthogonal par rapport à l'axe X73. Le ressort de rappel 89 est donc un ressort de compression, qui forme un élément de rappel élastique de l'obturateur 87 dans une direction D2 opposée à D1 , jusqu'à la position d'ouverture.  The main body 88 of the shutter 87 is mounted in compression between the free end of the movable portion 77 and a return spring 89 housed in the intake subpart 93. The return spring 89 is mounted in compression between the main body 88 and an opposite wall 28 of the intake sub-portion 93, the opposite wall 28 being located at one end of the intermediate portion 29 opposite the end portion 90. The opposite wall 28 extends in a plane orthogonal to the X73 axis. The return spring 89 is therefore a compression spring, which forms an elastic return element of the shutter 87 in a direction D2 opposite to D1, to the open position.
Sur au moins une majorité de sa longueur le long de l'axe X73, la sous-partie d'admission 93 est cylindrique, en ayant pour base le col 30, c'est-à-dire, dans cet exemple, une section elliptique correspondant à la section de passage S30. En d'autres termes, le col 30 forme le bord d'une extrémité de la sous-partie d'admission 93, opposée à la paroi 28. La section transversale de la sous-partie d'admission 93, prise par rapport à l'axe X73, présente ainsi une largeur, parallèle à la largeur L30, de valeur supérieure à la valeur d'une hauteur de cette sous-partie d'admission, cette hauteur étant parallèle à la hauteur H30. En d'autres termes, la base de la forme cylindrique de la sous-partie d'admission 93 est elliptique et homothétique par rapport à la section S91 . Le passage du flux C2 est donc également facilité dans cette partie du conduit en chicane 32, alors que l'encombrement du conduit en chicane 32 est particulièrement faible selon l'axe principal X4. On at least a majority of its length along the axis X73, the intake subpart 93 is cylindrical, having as its base the neck 30, that is to say, in this example, an elliptical section corresponding to the passage section S30. In other words, the neck 30 forms the edge of one end of the intake subpart 93, opposite the wall 28. The cross section of the intake subpart 93, taken with respect to the X73 axis, and has a width parallel to the width L30, a value greater than the value of a height of the intake subpart, this height being parallel to the height H30. In other words, the base of the cylindrical shape of the intake subpart 93 is elliptical and homothetic with respect to section S91. The passage of C2 flow is also facilitated in this part of the baffle duct 32, while the size of the baffle duct 32 is particularly small along the main axis X4.
L'obturateur 87 est donc configuré pour obturer la deuxième entrée 21 par obturation de la partie intermédiaire 29, selon un degré d'obturation variable en fonction de la dilatation du corps thermo-dilatable, et donc de la température TM, pour faire varier le débit du deuxième flux entrant C2 en conséquence. Lorsque la température TM atteint un seuil prédéterminé, par exemple 50°C, le flux C2 est totalement, ou au moins majoritairement, interrompu par obturation de la deuxième entrée 21 . The shutter 87 is thus configured to close the second inlet 21 by closing the intermediate portion 29, according to a variable degree of closure depending on the expansion of the heat-expandable body, and therefore the temperature T M , to vary the flow rate of the second incoming stream C2 accordingly. When the temperature T M reaches a predetermined threshold, for example 50 ° C., the stream C2 is totally, or at least mainly, interrupted by closing off the second input 21.
En variante, les sections S30 et S91 présentent une forme qui n'est pas elliptique, mais qui est par exemple rectangulaire, ou toute autre forme dont la largeur L30 et L91 est de valeur supérieure à la hauteur H30 et H91 , respectivement. De manière générale, on comprend que la forme des sections S30 et S91 est choisie pour favoriser le passage du flux C2, en présentant une surface maximale, tout en étant la moins encombrante possible le long de l'axe X4.  In a variant, the sections S30 and S91 have a shape that is not elliptical, but that is for example rectangular, or any other shape whose width L30 and L91 is greater than the height H30 and H91, respectively. In general, it is understood that the shape of the sections S30 and S91 is chosen to promote the passage of the stream C2, having a maximum area, while being the least cumbersome possible along the axis X4.
En variante, la paroi supérieure 46 et la paroi inférieure 45 sont formées par une pièce commune d'un seul tenant, de sorte que le boîtier 15 forme le bas de la cartouche 1 1 .  Alternatively, the upper wall 46 and the lower wall 45 are formed by a common piece in one piece, so that the housing 15 forms the bottom of the cartridge January 1.
Dans ce qui précède, on met en œuvre des flux d'eau. Toutefois, d'autres fluides peuvent être utilisés en lieu et place de l'eau, de préférence des flux de fluides liquides. De manière générale, l'arrivée 5 correspond à une arrivée d'un premier flux entrant F1 de fluide présentant une première température Tf, alors que l'arrivée 6 correspond à une arrivée d'un deuxième flux entrant C1 de fluide présentant une deuxième température Te qui est supérieure à la première température Tf. Les fluides du premier flux entrant F1 et du deuxième flux entrant C1 sont préférentiellement identiques et liquides, mais peuvent toutefois être de nature différente. L'eau s'échappant du bec 3 correspond ainsi à un flux sortant M1 de fluide, qui est formé par mélange des premier et deuxième flux entrant F1 et C1 au sein du robinet mitigeur 1 .  In the above, it implements water flows. However, other fluids may be used instead of water, preferably liquid fluid streams. In general, the arrival 5 corresponds to an arrival of a first incoming flow F1 of fluid having a first temperature Tf, whereas the arrival 6 corresponds to an arrival of a second incoming flow C1 of fluid having a second temperature. Te which is greater than the first temperature Tf. The fluids of the first incoming stream F1 and the second incoming stream C1 are preferably identical and liquid, but may however be of a different nature. The water escaping from the spout 3 thus corresponds to an outgoing flow M1 of fluid, which is formed by mixing the first and second incoming flows F1 and C1 within the mixing valve 1.
Les modes de réalisations et variantes définis ci-dessus pourront être combinés pour créer de nouveaux modes de réalisation.  The embodiments and variants defined above may be combined to create new embodiments.

Claims

REVENDICATIONS
1 . - Unité de mélange (2) pour un robinet mitigeur (1 ), présentant une forme générale cylindrique définissant un axe principal (X4) de l'unité de mélange, l'unité de mélange comprenant : 1. - Mixing unit (2) for a mixing valve (1) having a generally cylindrical shape defining a main axis (X4) of the mixing unit, the mixing unit comprising:
- une première entrée (39) d'un premier flux entrant (F2) de fluide présentant une première température (Tf),  a first inlet (39) of a first incoming flow (F2) of fluid having a first temperature (Tf),
- une deuxième entrée (41 ) d'un deuxième flux entrant (C2) de fluide présentant une deuxième température (Te) supérieure à la première température,  a second inlet (41) of a second incoming stream (C2) of fluid having a second temperature (Te) greater than the first temperature,
- une sortie (43) pour un flux sortant (M3) de fluide,  an outlet (43) for an outgoing flow (M3) of fluid,
- des moyens de mélange (13) des premier et deuxième flux entrants pour former le flux sortant,  mixing means (13) of the first and second incoming flows to form the outgoing flow,
- un col (30) d'obturation de la deuxième entrée, qui est disposé en amont de la deuxième entrée en considération du sens du deuxième flux entrant, et  - a neck (30) for closing the second inlet, which is arranged upstream of the second input in consideration of the direction of the second incoming flow, and
- des moyens thermostatiques, qui comprennent :  thermostatic means, which comprise:
o un élément thermostatique (73) incluant à la fois une partie thermosensible (75) disposée au moins partiellement à la sortie, et une partie mobile (77) en translation par rapport à la partie thermosensible selon un axe d'obturation (X73), le col délimitant une section de passage (S30) définie perpendiculairement à l'axe d'obturation, et  a thermostatic element (73) including both a thermosensitive portion (75) disposed at least partially at the outlet, and a movable portion (77) in translation relative to the thermosensitive portion along a closure axis (X73), the neck defining a passage section (S30) defined perpendicularly to the shutter axis, and
o un obturateur (87), qui est complémentaire avec le col (30) et qui est lié à la partie mobile de manière à évoluer, en fonction de la position de la partie mobile, entre une position d'obturation de la deuxième entrée dans laquelle l'obturateur est en contact étanche avec le col, et une position d'ouverture de la deuxième entrée dans laquelle l'obturateur est écarté du col,  o a shutter (87), which is complementary to the neck (30) and which is connected to the moving part so as to evolve, depending on the position of the movable part, between a closed position of the second input in which shutter is in sealing contact with the neck, and an open position of the second inlet in which the shutter is spaced from the neck,
l'unité de mélange (2) étant caractérisée en ce que la section de passage (S30) du col (30) présente une largeur (L30), mesurée perpendiculairement à l'axe principal (X4), dont la valeur est supérieure à la valeur d'une hauteur (H30) de la section de passage, la hauteur étant mesurée perpendiculairement à la largeur. the mixing unit (2) being characterized in that the passage section (S30) of the neck (30) has a width (L30), measured perpendicular to the main axis (X4), whose value is greater than the value of a height (H30) of the passage section, the height being measured perpendicular to the width.
2. - Unité de mélange (2) selon la revendication 1 , caractérisée en ce que la valeur de la largeur (L30) de la section de passage (S30) est supérieure à 1 ,2 fois la valeur de la hauteur (H30) de la section de passage, la valeur de la largeur de la section de passage étant préférentiellement égale à environ 1 ,6 fois la valeur de la hauteur de la section de passage. 2. - mixing unit (2) according to claim 1, characterized in that the value of the width (L30) of the passage section (S30) is greater than 1, 2 times the value of the height (H30) of the passage section, the value of the width of the passage section being preferably equal to about 1, 6 times the value of the height of the passage section.
3. - Unité de mélange (2) selon l'une quelconque des revendications précédentes, caractérisée en ce que la section de passage (S30) présente une forme sensiblement elliptique, la largeur (L30) formant le grand diamètre de la forme elliptique et la hauteur (H30) formant le petit diamètre de la forme elliptique. 3. - mixing unit (2) according to any one of the preceding claims, characterized in that the passage section (S30) has a substantially elliptical shape, the width (L30) forming the large diameter of the elliptical shape and the height (H30) forming the small diameter of the elliptical shape.
4. - Unité de mélange (2) selon l'une quelconque des revendications précédentes, caractérisée en ce que l'axe d'obturation (X73) et l'axe principal (X4) ne sont pas parallèles et en ce que l'unité de mélange comprend un conduit en chicane (32) qui comprend : 4. - mixing unit (2) according to any one of the preceding claims, characterized in that the shutter axis (X73) and the main axis (X4) are not parallel and in that the unit mixture comprises a baffle duct (32) which comprises:
- une partie aval (35), qui s'étend à partir de la deuxième entrée (41 ) parallèlement à l'axe principal,  a downstream part (35) extending from the second inlet (41) parallel to the main axis,
- une partie intermédiaire (29), qui est prolongée par la partie aval et s'étend selon l'axe d'obturation et qui inclut le col (30), lequel est coaxial avec l'axe d'obturation.  - An intermediate portion (29), which is extended by the downstream portion and extends along the shutter axis and which includes the neck (30), which is coaxial with the shutter axis.
5.- Unité de mélange (2) selon la revendication 4, caractérisée en ce que la partie intermédiaire (29) comprend une sous-partie de guidage (91 ) de l'obturateur (87) en translation selon l'axe d'obturation (X73), la sous-partie de guidage : 5.- mixing unit (2) according to claim 4, characterized in that the intermediate portion (29) comprises a guiding sub-portion (91) of the shutter (87) in translation along the axis of shutter (X73), the guiding sub-part:
- s'étendant à partir du col (30),  extending from the neck (30),
- étant connectée fluidiquement à la partie aval (35), et  - being fluidly connected to the downstream portion (35), and
- étant de forme générale cylindrique, le long de l'axe d'obturation, avec une section elliptique (S91 ) présentant une largeur (L91 ), mesurée perpendiculairement à l'axe principal (X4), dont la valeur est supérieure à la valeur d'une hauteur (H91 ) de la section elliptique, la hauteur de la section elliptique étant mesurée perpendiculairement à la largeur de la section elliptique.  - being of generally cylindrical shape, along the shutter axis, with an elliptical section (S91) having a width (L91), measured perpendicular to the main axis (X4), whose value is greater than the value a height (H91) of the elliptical section, the height of the elliptical section being measured perpendicular to the width of the elliptical section.
6. - Unité de mélange (2) selon la revendication 5, caractérisée en ce que la forme cylindrique de la sous-partie de guidage (91 ) est prolongée par une conduite de logement (79) débouchant à la sortie (43), et reliant ainsi la deuxième entrée (41 ) à cette sortie, l'élément thermostatique (73) étant monté au sein de la conduite de logement en obturant la conduite de logement de manière étanche. 6. - mixing unit (2) according to claim 5, characterized in that the cylindrical shape of the guiding sub-portion (91) is extended by a housing conduit (79) opening at the outlet (43), and thereby connecting the second inlet (41) to this outlet, the thermostatic element (73) being mounted within the housing conduit by sealing the housing conduit in a sealed manner.
7. - Unité de mélange (2) selon l'une quelconque des revendications 5 ou 6, caractérisée en ce que l'obturateur (87) comprend un corps principal (88) lié en translation à la partie mobile (77) le long de l'axe d'obturation (X73), le corps principal comprenant au moins deux nervures longitudinales (86) par l'intermédiaire desquelles le corps principal est monté coulissant dans la sous-partie de guidage (91 ), le long de l'axe d'obturation. 7. - mixing unit (2) according to any one of claims 5 or 6, characterized in that the shutter (87) comprises a main body (88) translationally connected to the movable part (77) along the closure pin (X73), the main body comprising at least two longitudinal ribs (86) through which the main body is slidably mounted in the guiding sub-portion (91), along the axis shutter.
8. - Unité de mélange (2) selon l'une quelconque des revendications 4 à 7, caractérisée en ce que la partie intermédiaire (29) comprend une sous-partie d'admission (93) qui : 8. - mixing unit (2) according to any one of claims 4 to 7, characterized in that the intermediate portion (29) comprises an intake subpart (93) which:
- prolonge la forme du col (30),  - extends the shape of the neck (30),
- est fluidiquement connectée à une partie amont (31 ) du conduit en chicane (32), la partie amont s'étendant parallèlement à l'axe principal (X4), et  - is fluidly connected to an upstream portion (31) of the baffle duct (32), the upstream portion extending parallel to the main axis (X4), and
- loge un élément de rappel élastique (89) de l'obturateur (87) depuis la position d'obturation vers la position d'ouverture.  - Houses a resilient return member (89) of the shutter (87) from the closed position to the open position.
9. - Unité de mélange (2) selon l'une quelconque des revendications précédentes, caractérisée en ce que l'obturateur (87) comprend une garniture d'obturation (26), configurée pour entrer en contact étanche avec le col (30), sur tout le pourtour de la section de passage (S30), lorsque l'obturateur est en position d'obturation. 9. - mixing unit (2) according to any one of the preceding claims, characterized in that the shutter (87) comprises a sealing gasket (26), configured to come into sealed contact with the neck (30) , all around the passage section (S30), when the shutter is in the closed position.
10. - Robinet mitigeur (1 ) équipé d'une unité de mélange (2) conforme à l'une quelconque des revendications précédentes. 10. - mixing valve (1) equipped with a mixing unit (2) according to any one of the preceding claims.
PCT/EP2017/059725 2016-04-26 2017-04-25 Mixing unit and mixer tap comprising such a mixing unit WO2017186676A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1653678A FR3050511A1 (en) 2016-04-26 2016-04-26 MIXING UNIT AND MIXER TAP COMPRISING SUCH A MIXING UNIT
FR1653678 2016-04-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021219717A1 (en) * 2020-04-29 2021-11-04 Vernet Thermostatic assembly, in particular a thermostatic cartridge

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2876433A1 (en) * 2004-10-08 2006-04-14 Vernet Sa Sa CARTRIDGE FOR A MIXER FAUCET, FAUCET COMPRISING SUCH A CARTRIDGE AND THERMOSTATIC ASSEMBLY FOR EQUIPPING SUCH A CARTRIDGE
FR3003046A1 (en) 2013-03-07 2014-09-12 Vernet THERMOSTATIC CARTRIDGE REGULATING HOT AND COLD FLUID TO MELANGER

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2876433A1 (en) * 2004-10-08 2006-04-14 Vernet Sa Sa CARTRIDGE FOR A MIXER FAUCET, FAUCET COMPRISING SUCH A CARTRIDGE AND THERMOSTATIC ASSEMBLY FOR EQUIPPING SUCH A CARTRIDGE
FR2876433B1 (en) 2004-10-08 2008-04-25 Vernet Sa Sa CARTRIDGE FOR A MIXER FAUCET, FAUCET COMPRISING SUCH A CARTRIDGE AND THERMOSTATIC ASSEMBLY FOR EQUIPPING SUCH A CARTRIDGE
FR3003046A1 (en) 2013-03-07 2014-09-12 Vernet THERMOSTATIC CARTRIDGE REGULATING HOT AND COLD FLUID TO MELANGER

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021219717A1 (en) * 2020-04-29 2021-11-04 Vernet Thermostatic assembly, in particular a thermostatic cartridge
FR3109828A1 (en) * 2020-04-29 2021-11-05 Vernet Thermostatic assembly, including thermostatic cartridge
GB2609821A (en) * 2020-04-29 2023-02-15 Vernet Thermostatic assembly, in particular a thermostatic cartridge
GB2609821B (en) * 2020-04-29 2023-12-13 Vernet Thermostatic assembly, in particular a thermostatic cartridge

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