The invention relates to the field of valves for sanitary use. In particular, said valves "mixers" are used to send a mixed stream of running water by mixing a hot water flows and a cold water flow within a cartridge mounted in the body of tap. The respective flow rate of the cold water flow and hot water admitted to the cartridge can be adjusted using a control lever in order to enable a temperature control flow mixed by rotation of the lever around an axis, and the rate of flow mixed by a lever rotation about a second axis.

The cartridge includes 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 planar contact, sliding and sealed with the fixed disc. Depending on the position of the movable disk on the fixed disk, the channels are formed to allow the admission of cold and hot water flows within the cartridge, with a more or less large flow rate, and thereby cause their mixture the formation of the mixed stream.

Some cartridges can be known with a separate additional housing and is reported against the cartridge. For example, patent FR-B-2,876,433 discloses a cartridge for a mixing valve equipped with an additional thermostat module sealingly coupled to the base of the cartridge. The additional thermostat module is provided with thermostatically controlled means for, when the mixed flow temperature exceeds a predetermined threshold value, to close the passage of hot water before it enters the cartridge, to automatically limit the temperature of the stream.

However, the overall dimensions that represents such additional module can make it difficult to adapt within certain existing mixing valves, which offer a limited reception area for the cartridge and the additional module.

WO 2015/086749 A1 discloses a cartridge comprising two hot water and cold water inlets, an outlet chamber, and the mixing discs. The cartridge also includes a thermostatic element, with a heat-sensitive portion disposed in the outlet chamber, and a mobile part in translation with respect to the thermosensitive portion, coaxially with a main axis of the cartridge. This known cartridge also includes a closure slide, connected with the thermosensitive portion, so as to provide thermostatic regulation of temperature

flow of water coming out. The slide shutter is designed to block the passage of cold water and hot water at an outlet chamber located downstream of the mixing disc, and does not allow closing of the water inlet hot, situated upstream of the mixing discs. This known cartridge does not include a shutter of the hot water inlet. The axis of translation of the slide shutter being coaxial with the axis of the cartridge, the thermostatic control system is relatively bulky in the lower part of the cartridge.

FR 3003046 A1 discloses a device comprising a thermostatic control system whose operation is similar to that of WO 2015/086749 A1.

Therefore, the invention aims to remedy the disadvantages of the prior art by providing a new mixing unit which, while being easy to manufacture, is sufficiently compact to fit most existing mixing valves.

The invention relates to a mixing unit for a mixer tap, having a generally cylindrical shape defining a major axis of the mixing unit, the mixing unit comprising:

a first input of a first incoming stream of fluid having a first temperature,

a second input of a second incoming stream of fluid having a second temperature higher than the first temperature,

an output for an output stream,

mixing means of the first and second incoming stream to form the output stream, and

thermostatic means which comprise:

o a thermostatic element including both a heat-sensitive portion disposed at least partially to the outlet, and a mobile part in translation with respect to the thermosensitive portion on a seal center line, and

o a second input plug connected to the mobile part in translation along the closure axis,

According to the invention, a plane orthogonal to the main axis and the closure axis intersect, the sealing axis being inclined with respect to this orthogonal plane and extending therethrough.

Thanks to the invention, the thermostatic means are arranged obliquely in the mixing unit, so that the compactness of the mixing unit is improved along the main axis. This compactness is achieved, even though it provides for both the mixing means and thermostatic means for closing at least partially the second input depending on the temperature of the output flow.

According to other advantageous features of the invention, taken individually or ombination:

axis shutter forms a non-zero tilt angle between -45 ° and 45 ° with the plane orthogonal;

- the angle of inclination is between -45 ° and -10 ° or between 10 ° and 45 °;

the mixing unit comprises a housing, which connects the outlet with the second inlet along the closure axis, and wherein at least a portion of the thermostatic means is housed, so as to close the leaktight manner communication between the outlet and the second inlet;

- the housing has an insertion end thermostatic means therein, the insertion end being disposed on the side of the outlet, the mixing unit defining a clearance thermostatic means, through which the thermostatic means can be mounted in the housing by thermostatic means translation along the axis until shutter inserting at least part of the thermostatic means in the housing through the insertion end ;

- the mixing unit comprises a sealing ring of the mixing unit with a mixing valve body, the sealing ring extending in the orthogonal plane, thermostatic means being traversed by the orthogonal plane and surrounded by the sealing ring;

- the mixing unit comprises a cartridge enclosing the mixing means, and an additional housing which is mounted to bear against the cartridge and which includes the thermostatic means and the sealing ring;

- the mixing unit comprises a bottom face surface of which the first input and the second input lead, the second input being extended inwardly of the mixing unit, via a conduit baffle comprising a closable part by the shutter, the sealable portion extending substantially coaxially with the closure axis, the conduit baffle connecting the second input to the mixing means;

- the mixing unit comprises a control member, the mixing means including a mixing chamber containing a set of mixing discs, which are made of ceramic, and at least one is actuated by the control member for controlling the respective flow rate of the first inflow and second inflow and thereby adjust both the temperature and flow of the outgoing stream; and

the first incoming stream from the first input and the second inflow from the second input are contacted during their passage within the mixing means for mixing and forming the output stream, the outgoing stream is then discharged via the exit.

The invention also relates to a mixing valve equipped with a mixing unit as defined above.

The invention will be better understood from reading the description which follows, given by way of example and with reference to the drawings:

- Figures 1 and 2 are longitudinal sections of a mixing valve comprising a mixing unit according to a first embodiment of the invention;

- Figure 3 is a view of a detail of Figure 1, on a larger scale, in part III;

- Figure 4 is a perspective view from below of the mixing unit of Figures 1 to 3, in which are represented II and II-II planes correspond to the respective section planes of Figures 1 and 2;

- Figure 5 is a view similar to that of Figure 4 wherein an additional housing of the mixing unit is omitted; and

- Figure 6 is a view, similar to Figure 1, a mixing valve comprising a mixing unit according to a second embodiment of the invention.

Figures 1 and 2 illustrate a mixing valve 1 into which is inserted a mixing unit 2. The mixer tap 1 is preferably designed to be installed on a sink or shower tray type, or more generally in a sanitary installation. The mixing valve 1 comprises, typically, a 3 to spout from which a mixed flow of water shown by the arrow M1 is to be transmitted. The valve 1 also comprises a body 4 which forms a hollow cylinder defining a main axis X4, which is intended to be disposed vertically when the valve is mounted on the plumbing.

For convenience, the following description is oriented relative to the main axis X4, considering that the terms "upper" and "top" correspond to an axial direction directed towards the upper part of Figure 1, while the terms "lower" and "bottom" correspond to an axial direction in opposite directions.

In non-illustrated variant, the X4 axis is disposed in a direction different from the vertical and is for example horizontal.

The mouthpiece 3 form a curved duct which extends from the body 4 obliquely relative to the main axis X4, upwardly, the curvature of the spout 3 to guide the mixed water flow M1 to the bottom. The mixed water flows and progresses obliquely upwardly within the spout of the arrow M2 until the free end of the latter.

The mixer tap 1 also comprises a cold water inlet 5, which is visible in Figure 2, and a hot water inlet 6 which is visible in Figure 1, which are connected to the body 4 at a lower end of the last. The cold water inlet 5 and the hot water inlet 6 are provided for connection to conventional water supply means of the sanitary installation, which are not detailed in this description. Cold water progresses upwardly in the inlet 5, along arrow F1, at a temperature Tf. Hot water progresses in turn upwardly in the inlet 6, according to arrow C1, to a temperature Te. C1 and F1 flows are mixed within the mixer tap 1 to form the M1 flow, a temperature T M between T and Te, and debit supplemented C1 and F1 flows.

The mixing unit 2 is housed within the body 4, by being inserted therein by means of an upper opening 9 of the body 4 along the main axis X4. In this mixing unit 2 that is done mixing and C1 F1 inflows to form the outflow M1.

The mixing unit 2 has a coaxial generally cylindrical shape with the main axis X4. The mixing unit 2 comprises firstly a cartridge 1 1, which contains means 13 for mixing of the first inflow F1 and the second inflow C1 to form the output stream M1, and secondly an additional housing 15 which comprises a top wall 46 via which said housing 15 is mounted to bear upwardly against a bottom 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 accessory housing 15 which is located in the lower part of the body 4.

The additional casing 15 has a lower face 24 through which it is itself bears downwards against a supporting wall 23 of the body 4. The latter is substantially discoid and extends radially relative to main axis X4. Arrivals 5 and 6 of the inflow F1 and C1 through the support wall 23 for feeding the additional housing 15 by the bottom face 24. In practice, arrivals 5 and 6 are respectively connected in a leakproof manner, to a first input 19 of the first inflow F1, and at a second input 21 of the second inflow opening C1 on the surface of the lower face 24.

and circulates from bottom to top according to arrow C2 through the additional housing 15 in a conduit baffle 32 extending generally upwardly from the second inlet 21. In this case the baffle duct 32 comprises a first portion 31 substantially parallel to the main axis X4 and extending from the second inlet 21. The conduit baffle 32 then comprises a closable portion 29, by a shutter 87 which is described in more detail below, the closable portion 29 extending the first portion 31. Finally, the baffle duct 32 comprises a third portion 35 substantially parallel to the main axis X4 conducting the second inflow C2 until the cartridge 1 1 and extending closable portion 29. The third portion 35 passes through the upper wall 46 of the housing 15. The closable part 29 extends obliquely relative to the first portion 31 and third portion 35 so that the conduit baffle 32 forms an "S". The third portion 35 opens into the mixing chamber 27. Thus, the two streams entering F2 and C2 are admitted into the mixing chamber 27 of the cartridge 1 1 and there be mixed to form an outgoing flow M3 for forming the flow M1.

The mixing chamber 27 includes an inlet 39 for the first stream F2, a second inlet 41 for the second flow C2, and an output 43 for the outflow M3, as is particularly visible in Figure 5, on which the additional housing 15 is omitted. The inputs 39, 41 and the outlet 43 open surface of the bottom wall 45 of the cartridge 1 1. In this case, the bottom wall 45 has a 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 inputs 39, 41 and the outlet 43 are respectively surrounded by seals 44, 48 and 52, mounted on the surface of the bottom wall 45 to ensure the tightness of the connection between the cartridge 1 1 and the additional housing,

In the example illustrated, 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 Figures 1 and 2. The discs 13A mixture, 13B and 13C are in contact surface with each other and extend in planes orthogonal to the main axis X4. The mixing assembly of discs comprises a upper disc 13A, 13B an intermediate disc and a lower disc 13C, 13A and 13B the upper intermediate discs being movable relative to the disc 13C which is fixed, 13B intermediate disc being in sliding contact and sealed with the disc 13C. 13B and 13C lower intermediate disks comprise a system of channels and apertures, not shown, which is connected to the inputs 39 and 41 and the exit 43 and which, depending on the relative position of the discs 13B and 13C, sets the respective rate of incoming flow F2 and C2 admitted to the disk set by the 39 and 41 inputs. As represented by arrows F3 and C3, incoming flow circulating in the channel system and gills and first pass through the bottom disk 13C, and 13B in the intermediate disc. Inflows F3 and C3 then circulate again through the bottom disk 13C from top to bottom. During their passage within 13A drives, 13B and 13C, where inflows F3 and C3 are contacted to be mixed and form the outflow M3. Efflux M3 is at temperature T Inflows F3 and C3 then circulate again through the bottom disk 13C from top to bottom. During their passage within 13A drives, 13B and 13C, where inflows F3 and C3 are contacted to be mixed and form the outflow M3. Efflux M3 is at temperature T Inflows F3 and C3 then circulate again through the bottom disk 13C from top to bottom. During their passage within 13A drives, 13B and 13C, where inflows F3 and C3 are contacted to be mixed and form the outflow M3. Efflux M3 is at temperature TM , the ratio of flow rates of the incoming streams F3 and C3 for adjusting the temperature T MAnd the value of F3 incoming stream flow and C3 for adjusting the flow rate of the M3 flows. In practice, the passage section of the incoming streams F3 and C3 varies according to the relative position of the discs 13B and 13C, by establishing communication channels and the aforementioned openings. The ceramic discs and duct system are not described in detail because they are well known mixing means as such, and described for example in FR-B1 2876 433. It is also understood that although the is preferred implementation of a ceramics disc mixing chamber, any known mixing means and usually implemented in the mixing valves cartridges may be used instead.

Efflux M3 formed by mixing in the mixing chamber 27 is then discharged out of the latter via the outlet 43 and out of the cartridge 1 1 into an outlet chamber 37 of the mixing valve 1, conducting the flow M3 outgoing from top to bottom to an outlet 47 formed through the support wall 23. arrivals 5 and 6 and the outlet 47 are distributed around the main axis X4. The additional module 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 a plane orthogonal P71 with respect to the axis X4, projecting centrifugally with respect to the axis X4, from the top wall 46 of the housing 15 so as to sealingly engage the body 4. in this case,

radially outwardly, in which is arranged an O-ring crushed in contact with the body 4, as illustrated in FIGS. The sealing ring 71 thus defines an upper portion of the outlet chamber 37, the latter also being laterally delimited by the wall of the body 4, and below by the support wall 23. As shown in Figure 4 , the outlet chamber 37, through the conduit 25 and the conduit baffle 32 are regularly distributed around the main axis X4. As shown in Figures 1 and 2, the outgoing flow M3 is thus discharged in a lower chamber 50, the body 4 through the outlet 47. The lower chamber 50 is bounded at the top by the wall 23 laterally of the body 4 and at the bottom by a bottom 49 of the mixing valve 1. The bottom 49 is substantially discoid and orthogonal to the main axis X4, and closes the body 4 at the lower end thereof. In the lower chamber 50, the outflow conduit is M3, M4 according to arrow until spout 3 through an access opening 51 formed in the wall of the body 4 radially relative to the axis Senior X4, communicating the lower chamber 50 with the nozzle 3. in the spout 3, the outflow M4 becomes the outflow 2, then the outflow M1 mentioned above.

The mixing unit 2 further comprises a lever 7 which is mounted at the top of the cartridge 1 1, so as to protrude from the body 4 through the upper opening 9, for allowing a user to actuate the lever 7. the actuation of the lever 7 is used to control the mixing means 13, and in particular to move 13A and 13B through upper disc rotating about an axis parallel to the main axis X4, or around axis X4 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 thereby control the respective flow rate of the first inflow F1 and the second inflow C1. Thus, the controller 7 adjusts both the temperature and flow rate of the outflow M1 by adjusting the relative position of disks in the set of discs 13A, 13B and 13C. The mixer tap 1 and the cartridge 1 1 may as well be called "single lever" to the extent that the lever 7 is used to control both the flow and temperature of the outflow M1 regulate flows F1 inflows and C1. In practice, the lever 7 is: The mixer tap 1 and the cartridge 1 1 may as well be called "single lever" to the extent that the lever 7 is used to control both the flow and temperature of the outflow M1 regulate flows F1 inflows and C1. In practice, the lever 7 is: The mixer tap 1 and the cartridge 1 1 may as well be called "single lever" to the extent that the lever 7 is used to control both the flow and temperature of the outflow M1 regulate flows F1 inflows and C1. In practice, the lever 7 is:

- to pivot about the main axis X4, which causes a rotation of the upper disc 13A and 13B around the same axis, for adjusting the ratio between the flow of the first and second incoming streams F1 and C1 and thus the temperature of the efflux M1, and

- pivotable about a second axis X7 which is orthogonal to the main axis X4 to translate the upper discs 13A and 13B along the axis X13 and varying

fairly flow of the first and second stream, to control the flow of the outgoing stream.

The lever 7 is linked to the set of discs 13A, 13B and 13C, that is to say, the mixing means 13 by a operating mechanism that is not described in more detail, in so far as it is known as such.

The cartridge 1 1 comprises a cover 53 which forms an outer shell wall of the cartridge 1 1 is substantially cylindrical with a circular base about the main axis X4. The cover 53 contains mixing means 13, laterally delimiting the chamber 27. The cap 53 also encloses the base of the lever 7, the cartridge comprising a crown 63, attached to an upper end of the cover 53, through which a nut 65, centered around the principal axis X4, plate the mixing unit 2 against the support 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 comprises a first thermostatic member 73, extending along an axis X73 shutter included in the plane of Figure 1. The axis of shutter X73 and P71 orthogonal plane intersect. In other words, the axis X73 shutter is inclined relative to this plane and P71 therethrough. The closable portion 29 of the baffle duct 32 extends substantially coaxially with the axis X73 shutter. Preferably, the axis X73 shutter forms an angle β1 of inclination between 10 ° and 45 ° with the plane orthogonal P71, and preferably equal to 13 °.

As is particularly visible in Figure 3, along the axis X73 shutter, the thermostatic element 73 includes a heat-sensitive portion 75 mounted in a housing 79 of the accessory housing 15. The housing 79 is a coaxial pipe with the axis X73 of shutter and which is arranged in the additional housing 15 so as to connect the outlet chamber 37 and the conduit 32. the baffle housing 79 and communicates the outlet 47 with the second inlet 21.

The thermosensitive portion 75 forms a fixed part of the thermostatic element 73 and includes, in particular, along the axis X73 shutter, a cup 81 that protrudes from the housing 79 and extends into the passage of the outgoing flow M3 at the exit 47. the cup 81 has a generally cylindrical shape with circular base centered on the axis X73 shutter, and contains a thermally expandable body which is for example a suitable wax. The cup 81 is in contact with the outflow M3, the thermo-expandable body expands and contracts according to the temperature T M of the outgoing flow M3.

and has a seal 92 with the housing 79, so as to close the latter tight manner and prevent any water transfer from the second C2 flows in the outlet 47 via the housing 79. The ring 84 is fixed supporting housing 79 using fastening elements 94 shown schematically in Figure 4, the screw type. The fixing elements 94 are located in a wall of the chamber 37, which forms the periphery of the end 90. The thermostatic element 73 is thus housed in the housing 79 so as to sealingly close the communication between the outlet 47 and the second input 21. The ring support 84 is attached to the housing 79 using fastening elements 94 shown schematically in Figure 4, the screw type. The fixing elements 94 are located in a wall of the chamber 37, which forms the periphery of the end 90. The thermostatic element 73 is thus housed in the housing 79 so as to sealingly close the communication between the outlet 47 and the second input 21. The ring support 84 is attached to the housing 79 using fastening elements 94 shown schematically in Figure 4, the screw type. The fixing elements 94 are located in a wall of the chamber 37, which forms the periphery of the end 90. The thermostatic element 73 is thus housed in the housing 79 so as to sealingly close the communication between the outlet 47 and the second input 21.

The thermostatic element 73 also comprises a movable portion 77 which forms a cylindrical piston coaxial with the axis X73 shutter. The movable portion 77 is mounted within the guide 83, so as to translate with respect to the thermosensitive portion 75 away from the thermosensitive portion 75, towards the pipe baffle 32, as the shutter axis X73 under the action of the thermo-expandable body contained in the cup 81.

A shutter 87 belonging to the thermostatic element 73 is provided in the closable portion 29, and is adapted to be moved in translation along the closure axis X73 by the moving part 77. The shutter 87 is arranged with respect to the movable portion 77 so that the latter can drive the shutter 87 to a position closing the second inlet 21, wherein a gasket 26 of the closure 87 formed by example by an external O-ring, closes off the closable part 29. in this case, the movable portion 77 is in contact with the shutter 87 so as to urge the latter away from the thermosensitive portion 75 in a direction D1 parallel to the axis X73, under the action of heat expandable body contained in the cup 81.Due to the inclination of the axis X73 relative to the plane P71, the thermostatic element 73 is further from the mixing means 13 than is the shutter 87.

The shutter 87 is mounted in compression between the free end of the movable part 77 and a return spring 89. The latter is itself mounted in compression

between the closure 87 and an opposite wall 28 of the closable portion 29 of the baffle 32. The conduit opposite wall 28 extends in a plane orthogonal to the axis X73. The return spring 89 is a compression spring, designed to bias the shutter 87 in a D2 direction opposite to D1, to an opening position of the duct in baffle 32 and thus the second input 21.

The shutter 87 is configured to close the second inlet 21 by sealing the closable portion 29, a variable shutter degree depending on the expansion of the thermally expandable body, and hence the temperature T M for varying the flow rate of the second inflow C2 accordingly. When the temperature T Mreaches a predetermined threshold, for example 50 ° C, the C2 stream is completely or at least partially interrupted by closure of the second inlet 21. The thermostatic means, and in particular the closure 87 constitute a separate means of the mixing means 13 described above. Thermostatic means advantageously have a safety function, anti-scald, reducing or cutting off the inflow C2 M3 when the outgoing flow is too high.

The mixing unit 2 is configured to be inserted into the body 4 of the mixing valve 1 through the top opening 9. Before this step of inserting the unit 2, the outlet chamber 37 is opened and forms a clearance, due to the absence of the body 4 of the mixing valve 1. The assembly of the thermostatic element 73 may be effected by insertion of the latter into the housing 79 in the direction D1, by the end 90, which therefore constitutes "insertion end". Preferably, the clearance space of the chamber 37 is shaped so that the thermostatic element 73, the shutter 87 and the spring 89 can be placed in this clearance, along the axis X73, and be pushed in the direction D1 in order to be inserted into the housing 79 through the insertion end 90, without requiring a separation of the additional casing 15 and the cartridge 1 1. This configuration of the chamber 37 is made possible due to the inclination of the axis X73 relative to the plane P71, whereby the thermostatic means passes beside the sealing ring 71 when placed in translation along the axis X73 in the chamber 37. Without this inclination of the axis X73, the sealing ring 71 would oppose the free travel of the aforementioned thermostatic means along the axis X73 in the chamber 37. it is understood that the tilt angle β1 of the X73 axis relative to the plane P71 is selected so that the sealing means n ' not interfere with said sealing ring 71. A notch 72, visible in Figures 3 and 4, is formed in the sealing ring 71 at a point on the circumference of the latter. This notch 72 has a coaxial cylindrical profile with the axis X73, and has a radius DR. The DR radius is greater than the radial size, that is to say the maximum radius relative to the axis X73, thermostatic means. When the above-mentioned thermostatic means are mounted within the housing 79, they are traversed by the plane P71 and surrounded by the sealing ring 71. Generally, to allow disengagement of the thermostatic means, it is expected that the clearance space extends at least on a cylinder coaxial with the axis X73, starting at the end of

Finally, the inclination of the axis X73 means that the sealing ring 71 can be placed at a relatively short distance from the lower face 24, despite the congestion thermostatic means and the constraints associated with their mounting within of the mixing unit 2. Thus, the mixing unit 2 is particularly compact and is adapted to the geometry of the existing mixing valves.

In variant not shown, the inclination of the axis X73 relative to the plane P71 is such that the thermostatic element 73 is less distant mixing means 13 than is the shutter 87. In this case, the angle β1 is for example between -45 ° and -10 °, preferably -13 °. In other words, a reverse arrangement to that shown in Figures 1 to 5 is adopted for the thermostatic element 73 and the shutter 87 so that the plane P71 and X73 axis intersect. Thus, in this embodiment, the inclination of the axis X73 relative to the plane P71 also implies that the sealing ring 71 can be placed at a relatively short distance from the lower face 24.

Generally, the angle β1 is preferably between -45 ° and 45 °, while being zero.

6 illustrates a mixing unit 102 according to a second embodiment and has similar characteristics with the mixing unit 2 of the first embodiment described above, illustrated in Figures 1 to 5, these being similar characteristics designated by the same route in the drawing and / or reference numbers increased by 100. the following description therefore focuses on the differences between the first and second embodiment.

Just like the mixing unit 2, the mixing unit 102 comprises a first input for a first incoming stream, not visible in Figure 6, as well as inputs 121 and 141 for a second inflow C2, a baffle duct 132, with a closable part 129, the mixing means 1 13 to form an outgoing flow M3, an outlet 143 with an outlet chamber 137 and a housing 179. the mixing unit 102 also includes a controller 107, of thermostatic means comprising firstly a thermostatic element 173 includes both a portion

thermosensitive 175 and a movable portion 177, and secondly an obturator 187, with a return spring 189. The movable part 177 is movable in translation along an axis X173 shutter, secant with respect to a plane orthogonal to a P171 X104 main axis defined by the generally cylindrical shape of the mixing unit 102. the plane P171 and X173 axis define an angle β101. The mixing unit 102 includes a sealing ring 171 with a body 4 of the mixing valve 1, the sealing ring extending in the plane P171 protruding centrifugally with respect to the main axis X104.

The mixing unit 102 is incorporated into the same valve body 4 mixer 1 as that of Figures 1 to 5. The mixing unit 102 includes a cartridge 1 1 1 and an additional housing 1 15. Unlike the unit mixture 2, the additional housing 1 15 of the mixing unit 102 is formed integrally with the cartridge 1 1 1, or at least fixedly attached to the cartridge 1 1 1. Thus, the mixing unit 102 comprises a single piece 145 replacing both a bottom wall 45 and top wall 46 of the mixing unit 2. The piece 145 also form a single piece, a hood 153 the cartridge 1 1 1, the sealing ring 171, and the conduit baffle 132, the outlet chamber 137 and conduit therethrough, not visible in Figure 6. the mixing unit 102 is thus particularly easy to manufacture, insofar as it is not necessary to assemble an additional housing on a cartridge, which avoids the use of sealing gaskets of the genus joints 44, 48 and 52 of the mixing unit 2. This part 145 may be obtained for example by molding. The assembly of the thermostatic means in the mixing unit 102 may be performed as in the case of the unit 2, thanks to the inclination of the axis X173, allowing cleaning of a clearance space under the sealing ring 171. sealing the kind of joints 44, 48 and 52 of the mixing unit 2. This part 145 may be obtained for example by molding. The assembly of the thermostatic means in the mixing unit 102 may be performed as in the case of the unit 2, thanks to the inclination of the axis X173, allowing cleaning of a clearance space under the sealing ring 171. sealing the kind of joints 44, 48 and 52 of the mixing unit 2. This part 145 may be obtained for example by molding. The assembly of the thermostatic means in the mixing unit 102 may be performed as in the case of the unit 2, thanks to the inclination of the axis X173, allowing cleaning of a clearance space under the sealing ring 171.

In the above, it implements water flow. However, other fluids can be used instead of water, preferably liquid fluid flow. Generally, the arrival of 5 corresponds to an arrival of a first inflow fluid F1 having a first temperature Tf, while the arrival 6 corresponds to an arrival of a second inflow fluid C1 having a second temperature Te is higher than the first temperature Tf. The fluids of the first inflow F1 and the second inflow C1 are preferably identical and liquids, but may however be of different nature. The water escaping from the nozzle 3 thus corresponds to a fluid outflow M1,

The embodiments and variations defined above can be combined to create new embodiments.

CLAIMS

1. - mixing unit (2; 102) for a mixer valve (1) having a generally cylindrical shape defining a major axis (X4) of the mixing unit, the mixing unit comprising:

- a first input (39) of a first incoming stream (F1) of fluid having a first temperature (Tf),

- a second input (41; 141) of a second inflow (C1) of fluid having a second temperature (Tc) higher than the first temperature, - an outlet (43; 143) for an outgoing flow (M3),

- mixing means (13) first and second incoming stream to form the output stream, and

- thermostatic means which include:

o a thermostatic element (73; 173) including both a thermosensitive portion (75; 175) disposed at least partially in the outlet and a movable portion (77; 177) in translation with respect to the thermosensitive portion along an axis of shutter (X73; X173), and

o a shutter (87; 187) of the second input linked to the mobile part in translation along the closure axis,

the mixing unit (2; 102) being characterized in that an orthogonal plane (P71; P171) to the main axis (X4) and the closure axis (X73; X173) intersect the axis shutter being inclined with respect to this orthogonal plane, and passing through it.

2. - Mixing unit (2; 102) according to claim 1, characterized in that the closure axis (X73; X173) forms an angle of inclination (β1; β101) nonzero between -45 ° and 45 ° with the orthogonal plane (P71; P171).

3. - mixing unit (2; 102) according to claim 2, characterized in that the angle of inclination (β1; β101) is between -45 ° and -10 ° or between 10 ° and 45 °.

4. - mixing unit (2; 102) according to any one of the preceding claims, characterized in that the mixing unit comprises a housing (79; 179), which puts in communication the outlet (43; 143) with the second input (41; 141) along the closure axis (X73; X173), and wherein at least a portion of the thermostatic means is housed, so as to sealingly close the communication between the outlet and the second input.

5. - mixing unit (2; 102) according to the preceding claim, characterized in that the housing (79; 179) has an insertion end (90) of thermostatic means therein, the insertion end being arranged on the side of the outlet (43; 143), the mixing unit defining a clearance space (37; 137) of thermostatic means, via which the thermostatic means can be mounted in the housing by translation thermostatic means along the closure axis (X73; X173) to insert at least a portion of the thermostatic means in the housing through the insertion end.

6. - mixing unit (2; 102) according to any one of the preceding claims, characterized in that the mixing unit comprises a sealing ring (71; 171) of the mixing unit with a body of mixer tap (1), the sealing ring extending in the orthogonal plane (P71; P171), thermostatic means being traversed by the orthogonal plane and surrounded by the sealing ring.

7. - mixing unit (2) according to the preceding claim, characterized in that the mixing unit comprises a cartridge (1 1), enclosing the mixing means (13) and an additional housing (15), which is mounted to bear against the cartridge and which includes the thermostatic means and the sealing ring (71).

8. - mixing unit (2; 102) according to any one of the preceding claims, characterized in that the mixing unit comprises a lower face (24) on the surface of which the first input (39) and the second input (41; 141) open, the second input being extended inwardly of the mixing unit, via a pipe baffle (32; 132) comprising a closable part (29; 129) by the shutter (87; 187), the closable part extending substantially coaxially with the closure axis (X73; X173), the conduit baffle connecting the second inlet (41; 141) to the mixing means (13).

9. - mixing unit (2; 102) according to any one of the preceding claims, characterized in that the mixing unit comprises a control member (7; 107), mixing means (13; 1 13) including a mixing chamber (27) containing a mixing assembly of discs (13A, 13B, 13C), which are made of ceramic, and at least one is actuated by the control member, for

controlling the respective flow rate of the first inflow (F1) and the second inflow (C1) and thereby adjust both the temperature and flow rate of the outflow (M3).

10. - mixing unit (2; 102) according to any one of the preceding claims, characterized in that the first incoming stream (F1) from the first input (39) and the second inflow (C1) from the second input (41; 141) are brought into contact during their passage within the mixing means (13) for mixing and forming the outflow (M3), the outflow then being discharged via the outlet (43).

January 1. - Mixing valve (1) equipped with a mixing unit (2; 102) according to any one of the preceding claims.