WO2006067320A1 - Element thermostatique a reponse rapide, ainsi que cartouche et robinet equipes d'un tel element - Google Patents
Element thermostatique a reponse rapide, ainsi que cartouche et robinet equipes d'un tel element Download PDFInfo
- Publication number
- WO2006067320A1 WO2006067320A1 PCT/FR2005/003180 FR2005003180W WO2006067320A1 WO 2006067320 A1 WO2006067320 A1 WO 2006067320A1 FR 2005003180 W FR2005003180 W FR 2005003180W WO 2006067320 A1 WO2006067320 A1 WO 2006067320A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cup
- thermostatic element
- element according
- thermostatic
- cavities
- Prior art date
Links
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
- G05D23/1326—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element details of the sensor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a thermostatic element of the type comprising an elongated cup containing a substantially expandable and contractile material according to the direction of variation of its temperature, and a piston movable relative to the cup in the longitudinal direction thereof and coupled to the expandable and contractile material to move in opposite directions as the material expands or contracts.
- the invention also relates to a cartridge and a thermostatic valve equipped with such an element.
- thermostatic elements are used in particular in the field of controlling the temperature of a fluid resulting from the mixing of two fluid streams at different temperatures, the relative movement of the piston and the cup being used to modify the proportion of the fluid. mixing of the two fluid streams. This is particularly the case in mixer taps and mixer taps.
- thermostatic element For a large number of applications in this field, it is necessary that the response of the thermostatic element be very fast, that is to say that the modification of the temperature of the medium in which the cup is located leads to very high temperatures. short delay a corresponding movement of the piston. This is particularly the case for thermostatic elements immersed in a feed water flow of a sanitary installation, for which application, an ideal temperature being selected, a reduction of temperature of three or four degrees only is very unpleasant, and an increase of a few degrees can be the cause of burns.
- thermostatic elements conventionally used in this type of application comprise, for example according to FIGS. 1 and 2, a metal cup 1 having a tubular running portion 11 having a generally cylindrical shape with a circular base and a longitudinal axis X-X.
- a bottom end 12 closes this portion 11 while the opposite end blooms to connect to a collar 13.
- a sheath 2, having a shape of revolution with a central channel 21, comprises a base 22 housed in the collar of the cup so that apart from the base 22, the sleeve 2 extends out of the cup in the opposite direction to the cylindrical portion 11 thereof, and coaxially.
- the flange 13 is crimped around the base 22.
- the tubular portion 11 of the cup is filled with a mass of material which is very expandable and contractile depending on temperature variations, especially around a functional temperature, here a mass of wax 3.
- the base 22 of the sleeve comprises in its face which is opposite this mass of wax, an annular housing 23 in which is anchored the periphery of a diaphragm 4 disc-shaped and elastically deformable, closing the central channel 21 of the sleeve on the side of 1.
- a piston 5 subject to the movements of the central region of the diaphragm, the end of the piston opposite the diaphragm being more or less projecting out of the sheath according to of the volume occupied by the wax, therefore of the temperature of this one.
- a tubular gusset 6 of protection surrounds a portion of the sheath 2 and the piston 5, its ends being immobilized in grooves dug in the periphery of these two parts.
- This bellows 6, in the form of a flexible membrane unwinding, follows the movements of the piston without plastic deformation.
- the piston 5 is subjected to the movements of the central region of the diaphragm 4 by means of a pad 7 of deformable elastomer in contact with the surface of the diaphragm opposite to the mass of wax and a washer 8 made of polymer such as PTFE inserted between the pad and the piston and fitted into the channel 21 to prevent creep of the pad elastomer around the piston.
- DE-A-30 13 386, DE-A-34 13 466 and GB-AI 385 372 describe thermostatic elements whose cup is similar to that of FIGS. 1 and 2, that is to say whose cup delimits internally a single chamber for storing a thermally expandable wax.
- thermostatic elements The general design of these thermostatic elements is well adapted to the use of a wax whose coefficient of expansion is very important compared to that of the common fluids (approximately 10 to 20 times higher) and thus likely to cause a very wide movement of the piston.
- waxes Unfortunately, these waxes have a very low thermal conductivity
- the object of the present invention is to provide an alternative solution to the presence of an insert insert as mentioned above and to provide a quick response thermostatic element that is more reliable and easier to manufacture.
- the object of the invention is a thermostat element which, comprising a cup containing an expandable and contractile material according to the direction of variation of its temperature, and a piston movable by relative to the cup in an axial direction thereof and coupled to the expandable and contractile material to move in opposite directions as the material expands or contracts, characterized in that the cup is made of a single metal part in which at least two internal cavities for receiving at least a portion of the expandable and contractile material are delimited.
- the use of the metal piece in one piece to receive the expandable and contractile material simplifies the obtaining of the thermostatic element since no operation of setting up an insert insert and securing this insert is not necessary.
- the walls of the cup delimiting the cavities are connected to the outer face of the cup by a continuity of metallic material, which ensures optimal thermal conduction between the outside of the cup in contact with the environment and the material stored in the cavities.
- the service life of the thermostatic element according to the invention is better than that of a thermostatic element insert insert, the contact areas between the insert and the peripheral wall of the cup at risk, in the long run, to be altered while, with the element according to the invention, the metallic material constituting the cup and delimiting the cavities is thermally stressed in one piece.
- the same cross sectional plane to the thermostatic element passes through the cavities; in the abovementioned transverse section plane, the cavities are distributed around the axis of the cup; each cavity is blind and opens on the side of the cup facing the piston; each cavity extends in length in a direction substantially parallel to the axial direction of the cup; each cavity has a generally cylindrical shape with a circular base; the outer lateral face of the cup is essentially cylindrical in a direction substantially parallel to the axial direction of the cup;
- the substantially cylindrical shape of the outer side face of the cup is circular base
- the essentially cylindrical shape of the outer lateral face of the cup is adjusted to the shape of the cavities; at least 80% of the expandable and contractile material is stored in the cavities;
- the cup is provided with external ribs protruding outwards.
- the invention also relates to a thermostatic cartridge or a thermostatic valve, provided with a thermostatic element as defined above.
- FIG. 1 is a longitudinal section of a known thermostatic element which has been described above;
- FIG. 2 is a cross section of the thermostatic element of Figure 1, in the plane II-II of this figure;
- FIGS. 3, 5, 7 and 9 are views similar to Figure 1, respectively four different embodiments of a thermostatic element according to the invention; and FIGS. 4, 6, 8 and 10 are respectively transverse sections of the thermostatic elements of FIGS. 3, 5, 7 and 9, respectively in planes IV-IV, VI-VI, VIII-VIII and IX-IX of these figures. .
- thermostatic element known from Figures 1 and 2 having been described above, it will not be detailed here again.
- the members of the thermostatic elements according to the invention which correspond to members of the known element bear the same numerical references.
- thermostatic elements represented in FIGS. 3 to 10 are intended to equip a valve cartridge or a thermostatic valve and comprise:
- a metal cup 1 extending along a central axis XX, having a running portion 11 elongate form filled with a mass of essentially expandable and retractile material 3, such as wax, and provided at one end with a closed bottom transverse wall 12 while the opposite end opens up for connection has a flange 13, and
- a sleeve 2 having a shape of revolution with a central channel 21 and a base 22 housed in the flange of the cup, the flange 13 being crimped around the base 22, and the cup and the sleeve extending coaxially according to the XX axis in opposite directions.
- thermostatic elements of FIGS. 3 to 10 also comprise an elastically deformable diaphragm 4, a piston 5 secured to the movement of the central region of this diaphragm by means of a buffer 7, with the interposition of a washer 8, as well as 6. These components will not be detailed here again since they have been presented previously, with reference to FIGS. 1 and 2.
- the cup 1 is made in one piece which internally delimits four cavities.
- cylindrical 14A within which is stored most of the wax 3, while externally, the cup has a substantially circular cylindrical side face HA, centered on the axis XX.
- Each cylindrical cavity 14A extends in length in a direction substantially parallel to the axis XX.
- each cavity is closed by a wall formed by the current portion 11 of the metal cup 1.
- each 14A cavity is closed, at one of its longitudinal ends, by the bottom wall 12 of the cup while at their opposite end, the cavities 14A open on the diaphragm 4, axially at the level of the collar 13.
- more than 80% or even 90% of the wax 3 is stored in the cavities 14A.
- the cavities 14A are for example hollowed out in a solid metal drum intended to constitute, after finishing, the cup 1, by machining, stamping or the like.
- the thermostatic element in particular its wax 3 reaches a homogeneous temperature equal to the new hot temperature ⁇ i of the medium outside.
- the heat circulates very rapidly throughout the metal of the cup 1, in particular up to the walls of the cup delimiting the internal cavities 14A.
- the temperature of the wax 3 having increased by ⁇ o to ⁇ i, it expands and, as the cup assembly 1 / sheath 2 is not deformable, the wax 3 deforms, by expanding, the diaphragm 4 which, in turn , deforms the buffer 7, the latter translating the washer 8 and the piston 5 in the channel 21 of the sleeve.
- the contact surface indicated in dashed lines for greater visibility, is denoted by S and the maximum cup / wax distance is denoted e_.
- the contact surface to be considered corresponds to the sum of the four elementary surfaces, denoted SA, of contact between the walls delimiting the four cavities 14A and the wax, and the maximum cup / wax distance is noted ⁇ A, being noticed that this distance is the same at each cavity 14A.
- the sum of the contact surfaces SA is greater than the contact area S associated with the conventional thermostatic element of FIGS. 1 and 2, while the distance e A is smaller than the distance e_ for a volume of wax and an identical cup length.
- the response time is therefore considerably shorter with the thermostatic element of Figures 3 and 4 than with the element of Figures 1 and 2.
- the metal cup 1 of the thermostatic element delimits internally, as in FIGS. 3 and 4, four cylindrical internal cavities 14B for receiving the majority of the wax 3.
- the cross section of the cavities 14B is not strictly circular, but forms a drop pattern, the tip of which is directed towards the axis XX.
- the outer lateral face HB of the cup 1 of FIGS. 5 and 6 is adjusted to the shape of the cavities 14B, that is to say that in cross section, it has a four-lobed outline, generally in the form of four-leaf clover.
- the metal thickness between the face HB and the opposite wall delimiting the corresponding cavity 14A is substantially constant.
- the external lateral face HC of the cup 1 is generally cylindrical with a circular base, as in FIGS. 3 and 4.
- the single piece of metal constituting the cup 1 of FIGS. 7 and 8 delimits only two internal cavities 14C for storing the wax 3. These two cavities are separated from each other by a flat partition 15 which extends in a diametrical plane of the cup 1, being integral with the rest of the cup at the same time at the level of the current portion 11, here tubular, and the bottom wall 12.
- the cup 1, of externally cylindrical running portion with a circular base internally delimits four cavities 14D for storing the wax 3.
- these cavities do not have a circular contour or form of drop as in Figures 4 and 6, but corresponding to a portion of the circular section of the current portion 11 of the cup 1.
- the cavities 14D are delimited by, in addition to the tubular wall of the part 11 and of the bottom wall 12, by two partitions internal to the cup, similar to the partition 15 of Figures 7 and 8 and integral with the rest of the cup, which extend respectively in diametral planes of this cup, perpendicular to one another .
- the current portion 11 of the cup is provided with ribs 16 which protrude outwardly from the side face HD and which are intended to be in contact with the external environment to the thermostatic element.
- the embodiment of FIGS. 9 and 10 differs moreover from the preceding embodiments in that its cup 1 is shorter along the axis XX.
- the length of this cup that is to say its dimension taken along the axis XX, is substantially equal to its diameter.
- thermostatic elements described above are of course conceivable.
- embodiments may be provided having different dimensions, suitable for the specific application of the thermostatic element, and very diverse cavity shapes.
- cup geometries are possible, with cups whose outer face Lateral presents more dishes, depressions and / or bulges or whose length is smaller than the diameter.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/793,353 US20080156890A1 (en) | 2004-12-20 | 2005-12-12 | Fast Response Thermostatic Element, a Cartridge and Valve Provided with Said Element |
EP05826559A EP1828864A1 (fr) | 2004-12-20 | 2005-12-19 | Element thermostatique a reponse rapide, ainsi que cartouche et robinet equipes d'un tel element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0413576 | 2004-12-20 | ||
FR0413576A FR2879681A1 (fr) | 2004-12-20 | 2004-12-20 | Element thermostatique a reponse rapide, ainsi que cartouche et robinet equipes d'un tel element |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006067320A1 true WO2006067320A1 (fr) | 2006-06-29 |
Family
ID=34952077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2005/003180 WO2006067320A1 (fr) | 2004-12-20 | 2005-12-19 | Element thermostatique a reponse rapide, ainsi que cartouche et robinet equipes d'un tel element |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080156890A1 (fr) |
EP (1) | EP1828864A1 (fr) |
CN (1) | CN101084477A (fr) |
FR (1) | FR2879681A1 (fr) |
RU (1) | RU2007127718A (fr) |
WO (1) | WO2006067320A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018084821A3 (fr) * | 2016-11-02 | 2018-06-07 | Kirpart Otomoti̇v Parçalari Sanayi̇ Ve Ti̇caret A.Ş. | Actionneur à base de cire à réponse rapide |
US11053928B2 (en) | 2016-05-25 | 2021-07-06 | Vernet | Assembly for producing a thermostatic element |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2940397B1 (fr) * | 2008-12-22 | 2014-06-20 | Vernet | Cartouche thermostatique monocommande et robinet mitigeur comportant une telle cartouche |
TWI422788B (zh) * | 2011-09-22 | 2014-01-11 | Globe Union Ind Corp | Constant temperature components |
CN103914091B (zh) * | 2013-01-05 | 2016-05-11 | 成霖企业股份有限公司 | 一种恒温组件及其制法 |
CN107860035A (zh) * | 2017-11-08 | 2018-03-30 | 海盐东海电器有限公司 | 一种具有温度限制控制功能的电陶炉发热盘 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3333471A (en) * | 1964-03-04 | 1967-08-01 | Antioch College | Thermal sensitive element |
GB1385372A (en) * | 1971-02-10 | 1975-02-26 | Kuze Y | Thermally responsive element |
DE3013386A1 (de) * | 1980-04-05 | 1981-10-08 | Pierburg Gmbh & Co Kg, 4040 Neuss | Thermostatisches betaetigungselement |
DE3413466A1 (de) * | 1984-04-10 | 1985-10-17 | Pierburg Gmbh & Co Kg, 4040 Neuss | Thermisches arbeitselement |
US5052181A (en) * | 1989-12-25 | 1991-10-01 | Nihon Seiken Kabushiki Kaisha | Heat sensitive actuator |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3454220A (en) * | 1967-09-11 | 1969-07-08 | Caterpillar Tractor Co | Water temperature regulator seal |
FR2775780B1 (fr) * | 1998-03-09 | 2000-07-28 | Vernet Sa | Element thermostatique a reponse rapide |
-
2004
- 2004-12-20 FR FR0413576A patent/FR2879681A1/fr not_active Withdrawn
-
2005
- 2005-12-12 US US11/793,353 patent/US20080156890A1/en not_active Abandoned
- 2005-12-19 CN CNA2005800436857A patent/CN101084477A/zh active Pending
- 2005-12-19 EP EP05826559A patent/EP1828864A1/fr not_active Withdrawn
- 2005-12-19 WO PCT/FR2005/003180 patent/WO2006067320A1/fr active Application Filing
- 2005-12-19 RU RU2007127718/28A patent/RU2007127718A/ru not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3333471A (en) * | 1964-03-04 | 1967-08-01 | Antioch College | Thermal sensitive element |
GB1385372A (en) * | 1971-02-10 | 1975-02-26 | Kuze Y | Thermally responsive element |
DE3013386A1 (de) * | 1980-04-05 | 1981-10-08 | Pierburg Gmbh & Co Kg, 4040 Neuss | Thermostatisches betaetigungselement |
DE3413466A1 (de) * | 1984-04-10 | 1985-10-17 | Pierburg Gmbh & Co Kg, 4040 Neuss | Thermisches arbeitselement |
US5052181A (en) * | 1989-12-25 | 1991-10-01 | Nihon Seiken Kabushiki Kaisha | Heat sensitive actuator |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11053928B2 (en) | 2016-05-25 | 2021-07-06 | Vernet | Assembly for producing a thermostatic element |
WO2018084821A3 (fr) * | 2016-11-02 | 2018-06-07 | Kirpart Otomoti̇v Parçalari Sanayi̇ Ve Ti̇caret A.Ş. | Actionneur à base de cire à réponse rapide |
Also Published As
Publication number | Publication date |
---|---|
CN101084477A (zh) | 2007-12-05 |
EP1828864A1 (fr) | 2007-09-05 |
FR2879681A1 (fr) | 2006-06-23 |
US20080156890A1 (en) | 2008-07-03 |
RU2007127718A (ru) | 2009-01-27 |
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