WO1979000313A1 - Robinet a melangeur thermostatique reglable - Google Patents

Robinet a melangeur thermostatique reglable Download PDF

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Publication number
WO1979000313A1
WO1979000313A1 PCT/CH1978/000038 CH7800038W WO7900313A1 WO 1979000313 A1 WO1979000313 A1 WO 1979000313A1 CH 7800038 W CH7800038 W CH 7800038W WO 7900313 A1 WO7900313 A1 WO 7900313A1
Authority
WO
WIPO (PCT)
Prior art keywords
water chamber
mixed water
valve
temperature
mixer tap
Prior art date
Application number
PCT/CH1978/000038
Other languages
German (de)
English (en)
Inventor
H Gustavs
Original Assignee
Gustavs Heye
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 Gustavs Heye filed Critical Gustavs Heye
Publication of WO1979000313A1 publication Critical patent/WO1979000313A1/fr

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
    • G05D23/134—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

Definitions

  • the present invention relates to a thermostatically controlled mixer tap, in which the temperature of the mixed water flow, which is formed from a hot water flow and a cold water flow, is kept at a presettable value by automatic regulation of the mixing ratio.
  • Mixer taps of this type are known, they have a hot water chamber, a cold water chamber and a mixed water chamber, the hot water chamber and the cold water chamber are each connected to the mixed water chamber via a valve, and a temperature sensor is arranged in the mixed water chamber, which has a temperature sensor for each temperature of the mixed water developed a certain force in the axial direction, with which he presses on a system that is movable in the axial direction and includes the valve elements.
  • This system is controlled by a control spring, the force of which can be adjusted manually with a regulating element for the mixed water temperature Kept balance.
  • the movable system is connected to a manually operated regulating element for the mixed water quantity, with which the distance of the valve elements for regulating the mixed water quantity can be changed.
  • the structure of the mixer tap is now characterized according to the present invention in that the The hot water chamber and the cold water chamber are arranged next to one another in a ring, separated by a wall, and enclose the mixed water chamber with the temperature sensor, with the valves on the radially inward elongated wall between the hot water chamber and the cold water chamber being arranged on both sides so that the two water flows directly onto the temperature sensor meet and mix. This enables the temperature sensor to react quickly to changes in the mixed water temperature, even with a small amount of mixed water.
  • control spring pressing on the movable system is supported on a control screw, and this with a thread on the regulating element for the mixed water temperature, and this in turn is supported on a bearing washer, which in turn is rigidly connected to the mixer housing by at least 2 screws or equivalent connecting elements is.
  • the control screw is prevented directly or indirectly from twisting, which can be moved in the axial direction by turning the regulating element for the mixed water temperature and thereby tensioning or relaxing the control spring.
  • FIG. 1 shows a mixer tap in longitudinal section.
  • Fig. 2 shows a variant of a detail of the mixer tap of Fig. 1 on the same scale.
  • the mixer tap consists of a subdivided housing 1, the three individual parts of the housing 1 being designated by 1a, 1b and 1c.
  • the housing parts 1a and 1b are, as indicated at ld, assembled firmly and watertight.
  • the housing parts 1a and 1c are joined firmly and watertight.
  • the housing part 1 a contains the cold water inlet connector 2 and the hot water inlet connector 3.
  • the housing part 1 b contains the mixed water outlet connector 4.
  • the cold water inlet connector 2 is connected to the cold water chamber 5 and the hot water inlet connector 3 is connected to the hot water chamber 6. Concentric to these annular chambers is the mixed water chamber, designated 7, which is connected to the mixed water outflow connection 4.
  • the hot water chamber 6 is connected to the mixed water chamber 7 via the valve generally designated 8.
  • the valve 8 contains a valve seat 8a, which is formed by the radially inwardly elongated wall between the cold water chamber 5 and the hot water chamber 6. Furthermore, the valve 8 contains a valve element 8b which, as shown in the illustration, is fastened on the transmission element 9 and can be moved with it in the axial direction.
  • an O-ring 8c is clamped, which rests in the closed position of the valve 8 from the valve seat 8a and interrupts the connection between the hot water chamber 6 and the mixed water chamber 7.
  • the end 8d of the valve member 8b facing away from the valve seat 8a is movably guided in the housing 1b in the axial direction and is provided with an O-ring 8e which seals the hot water chamber 6 against the mixed water chamber 7.
  • the end 8d of the valve member 8b has a diameter which is at least approximately the same size as the average diameter of the O-ring 8c.
  • valve member 8b ensures that the pressure has no axial force on the movable valve member 8b in the hot water chamber 6. It can easily be seen that all forces acting in the axial direction caused by the pressure of the hot water are compensated for. The position of the movable valve member 8b can therefore not be influenced by the pressure of the hot water. Since, as will be shown later, the position of the valve member 8b influences the mixing ratio of hot and cold water, the pressure compensation shown means that the temperature of the mixed water is not dependent on the pressure of the hot water.
  • An essentially identical construction is the valve, generally designated 10, in which the compensation of the axial forces caused by the pressure in the cold water chamber 5 is achieved in the same way.
  • the valve 10 contains a valve seat 10a, which is formed by the radially inwardly elongated wall between the hot water chamber 6 and the cold water chamber 5.
  • the valve seats 8a and 10a are therefore located on both sides of the radially inwardly elongated wall between the hot water chamber and the cold water chamber.
  • the valve 10 contains a valve member 10b, which is also attached to the transmission member 9 and can be moved with it in the axial direction.
  • On the face of the valve seat 10a facing the Valve member 10b is clamped in an O-ring 10c, which rests on valve seat 10a in the closed position of valve 10 and interrupts the connection between cold water chamber 5 and mixed water chamber 7.
  • the end 10d of the valve member 10b facing away from the valve seat 10a is movably guided in the housing part 1c in the axial direction and provided with an O-ring 10e which seals the cold water chamber 5 against the front chamber 11.
  • the front chamber 11 is connected to the central chamber 12 through the openings 10f, in the illustration, in the upper end face of the valve member 10b, while the central chamber 12 is connected to the mixed water chamber 7 the openings 8f, in the illustration, are connected in the upper end face of the valve element 8b.
  • the middle chamber 12 there is a plate spring 14, the force of which tries to increase the axial distance between the valve members 8b and 10b.
  • the two valve elements 8b and 10b are held together by the transmission element 9, the valve element 8b being supported on the shoulder 9a of the transmission element 9, while the valve element 10b is supported via the flange 15 on the nut 16, which is connected to the transmission element by means of the thread 16a 9 is connected.
  • the Guide of the transmission member 9 in the flange 15 is sealed with the O-ring 9b.
  • the square 17b rotates, since it is rigidly connected to the regulator for the mixed water quantity 17 via the axis 17a.
  • the square 17b is form-fitting, easily displaceable in the axial direction, coupled to the nut 16, and transmits the rotation to it.
  • the transmission element 9 is secured against rotation by the transverse pin 18, which can only be displaced in the axial direction in a slot 15a of the flange 15.
  • the flange 15 is in turn secured by the screws 19 against rotation and can only be moved in the axial direction. Furthermore, the flange 15 is guided movably in the axial direction in the housing part 1c. This guide is sealed with the O-ring 15b.
  • the movable system comprises the transmission element 9, on which the valve elements 8b and 10b with the associated O-rings 8c, 8e and 10c, 10e, the plate spring 14, the flange 15 and the nut 16 are arranged.
  • This system is inherently rigid due to the prestressing of the plate spring 14 and moves as a whole in the axial direction. The distances of the O-rings 8c and 10c to the corresponding valve seats 8a and 10a are mutually changed.
  • the hot water flows between the O-ring 8c and the valve seat 8a and the cold water between the O-ring 10c and the valve seat 10a.
  • the two water streams reach each other at high speed through the openings 8g provided on the circumference of the valve element 8b by the shortest route to the temperature sensor, generally designated 13. While the hot water and the cold water hit the temperature sensor 13, an intensive mixing of both water flows takes place, and the mixed water flows to the mixed water drainage connection 4, in the illustration below.
  • the temperature sensor is at the lower end in the illustration with the housing part 1b firmly connected, as indicated at 13a. So the temperature sensor 13 is not part of the movable system. Consequently, the forces on the temperature sensor 13 caused by the flowing mixed water cannot influence the control of the mixed water temperature.
  • the temperature sensor 13 consists of the temperature sensor housing 13b which, as indicated at 13c, is soldered to the base 13d.
  • a bellows 13e is arranged in the temperature sensor housing 13b, which is connected to the base 13d at the top in the illustration and to the plate 13f at the bottom in the illustration.
  • the plate 13f is connected to the rod 13g, which in the illustration presses against the transmission element 9 at the upper end.
  • the transmission element 9 is movably guided in the axial direction in the base 13d. This guide is sealed with the O-ring 13i.
  • the gap between the bellows 13e and the temperature sensor housing 13b is partially filled with a control medium 13h.
  • This control medium is preferably a substance which remains in the saturated steam state in the entire temperature range to be regulated, such as, for example, a halogen-substituted hydrocarbon. Fabrics of this type are available under the trade name "FREON”.
  • the interior 13j of the temperature sensor 13 is through the bore 9c in the transmission element 9 and through the slot 13k in the end of the rod 13g connected to the surroundings of the mixer tap so that no pressure fluctuations can occur as a result of temperature fluctuations in the interior 13d. As can easily be seen, a change in the pressure in the interior 13j would influence the control of the mixed water temperature, since the effective area of the bellows 13e is not the same size as the effective area of the transmission element 9.
  • this mixed water temperature includes a very specific vapor pressure of the control medium 13h and, as a result, a very specific force of the rod 13g on the transmission element 9 and thus on the movable system.
  • the movable system is balanced by the force of the control spring 20, which rests on the collar of the flange 15.
  • the movable system is in equilibrium in the axial direction when the mixed water temperature is so high that the associated force, as a result of the vapor pressure, is the same as the force of the control spring 20.
  • the control spring 20 is supported on the collar 21b of the control screw 21 from. Through the slots 21a in the collar 21b, through which the screws 19 pass, the Control screw 21 only movable in the axial direction.
  • the control screw 21 is supported in the axial direction via the thread 21c on the regulating member for the mixed water temperature 22, which in turn is held by the bearing disk 23 and this by the screws 19.
  • the control screw 21 moves by means of the thread 21c, for example downwards in the illustration.
  • the control spring 20 is compressed and thus the force on the collar of the flange 15 is greater and as a result the movable system moves down in the illustration.
  • the valve 10 for the cold water closes somewhat, while the valve 8 for the hot water opens somewhat.
  • the temperature of the mixed water is now such that the force emanating from the control medium is equal to the preset force of the control spring 20.
  • the control of the mixed water temperature is analogous if, for example, the temperature of the water flowing in through the hot water inflow nozzle 3 decreases during operation.
  • the mixed water temperature then drops and as a result the Vapor pressure of the control medium and thus the force on the moving system becomes smaller. Since the force of the control spring 20 has remained unchanged, the entire system movable in the axial direction moves downward in the illustration.
  • the cold water supply is reduced and the hot water supply is increased until the mixed water temperature is again so high that the force generated by the steam pressure on the movable system is equal to the force of the control spring 20.
  • FIG. 2 shows a variant of a detail of ⁇ ? Fig.l.
  • the two O-rings 8c and 10c are not clamped in the corresponding valve members 8b and 10b, but rather in the corresponding valve seats 8a and 10a on both sides of the radially inwardly elongated wall between the hot water chamber 6 and the cold water chamber 5.
  • the distance between the valve members 8b and 10b of the movable system can be unchangeable and the amount of mixed water can be regulated by a valve after the mixed water chamber.
  • the flange 15 can be composed of a collar and a sleeve, with only the collar for the Securing the transmission organ 9 is used.
  • the mixer tap ensures precise temperature control of the outflowing mixed water.
  • fluctuations in the mixed water temperature as a result of the rapid actuation of the regulating elements are practically undetectable.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

Armature ou robinet a melangeur, pour une alimentation principale de baignoire et de douche, qui regle automatiquement la temperature de l'eau a une valeur predeterminee. Le but de l'invention est de fournir un robinet a melangeur avec lequel la temperature de l'eau sera reglee d'une maniere graduee et precise meme dans des conditions defavorables. Ce but sera atteint par une disposition particuliere de soupapes (8, 10) liees a un capteur de temperature (13), par laquelle il est possible d'obtenir une reaction rapide du capteur de temperature a la temperature de l'eau melangee, et d'agir sur le melange des deux courants d'eau. De plus, la construction particuliere du mecanisme de reglage de la force du ressort de commande permet une grande course de ce ressort assurant une grande precision.
PCT/CH1978/000038 1977-11-22 1978-11-08 Robinet a melangeur thermostatique reglable WO1979000313A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1436977 1977-11-22
CH14369/77 1977-11-22

Publications (1)

Publication Number Publication Date
WO1979000313A1 true WO1979000313A1 (fr) 1979-06-14

Family

ID=4400212

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1978/000038 WO1979000313A1 (fr) 1977-11-22 1978-11-08 Robinet a melangeur thermostatique reglable

Country Status (7)

Country Link
EP (1) EP0006942A1 (fr)
JP (1) JPS55500133A (fr)
DK (1) DK493278A (fr)
FI (1) FI783503A (fr)
IT (1) IT1106338B (fr)
NL (1) NL7811211A (fr)
WO (1) WO1979000313A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4120024A1 (de) * 1991-06-05 1992-12-10 Ideal Standard Sanitaere mischbatterie mit thermostatregelung
EP0560737A2 (fr) * 1992-03-10 1993-09-15 GALATRON S.r.l. Mitigeur d'eau chaude et froide avec régulateur thermostatique
DE4324547A1 (de) * 1993-05-12 1994-11-17 Ideal Standard Sanitäre Mischbatterie mit Thermostatsteuerung
US5709339A (en) * 1993-05-12 1998-01-20 Ideal-Standard Gmbh Sanitary mixing faucet with thermostat control
EP1376291A2 (fr) * 2002-06-26 2004-01-02 Kohler Mira Ltd Mitigeur thermostatique
ITMI20092053A1 (it) * 2009-11-23 2011-05-24 O M B G S R L Cartuccia miscelatrice termostatica per dispositivi miscelatori di acqua calda e acqua fredda, particolarmente per componenti igienico-sanitari.
US8167215B2 (en) 2004-12-15 2012-05-01 Kohler Mira Limited Thermostatic mixing valves utilizing wave springs

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH349230A (de) * 1956-04-20 1960-09-30 Honegger Willy Temperaturabhängige Mischbatterie
CH394062A (de) * 1961-02-01 1965-06-15 Lins Albert Mischbatterie
CH400695A (de) * 1962-06-26 1965-10-15 Karrer Weber & Cie Armturenfab Thermostatisches Mischgerät
CH415483A (fr) * 1963-08-01 1966-06-15 Fonderie Soc Gen De Robinet mélangeur
CH421636A (de) * 1964-03-19 1966-09-30 Danfoss As Thermostatisch gesteuertes Mischventil
FR92539E (fr) * 1967-05-30 1968-11-22 Expl Des Procedes Vernet Soc P Robinet mélangeur
CH489734A (de) * 1968-09-27 1970-04-30 Grohe Armaturen Friedrich Mischbatterie
DE2014552A1 (de) * 1970-03-26 1971-12-02 Grohe Armaturen Friedrich Thermostat-Mischventil
DE2423374A1 (de) * 1974-05-14 1975-11-20 Grohe Armaturen Friedrich Mischventil

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH349230A (de) * 1956-04-20 1960-09-30 Honegger Willy Temperaturabhängige Mischbatterie
CH394062A (de) * 1961-02-01 1965-06-15 Lins Albert Mischbatterie
CH400695A (de) * 1962-06-26 1965-10-15 Karrer Weber & Cie Armturenfab Thermostatisches Mischgerät
CH415483A (fr) * 1963-08-01 1966-06-15 Fonderie Soc Gen De Robinet mélangeur
CH421636A (de) * 1964-03-19 1966-09-30 Danfoss As Thermostatisch gesteuertes Mischventil
FR92539E (fr) * 1967-05-30 1968-11-22 Expl Des Procedes Vernet Soc P Robinet mélangeur
CH489734A (de) * 1968-09-27 1970-04-30 Grohe Armaturen Friedrich Mischbatterie
DE2014552A1 (de) * 1970-03-26 1971-12-02 Grohe Armaturen Friedrich Thermostat-Mischventil
DE2423374A1 (de) * 1974-05-14 1975-11-20 Grohe Armaturen Friedrich Mischventil

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4120024A1 (de) * 1991-06-05 1992-12-10 Ideal Standard Sanitaere mischbatterie mit thermostatregelung
EP0560737A2 (fr) * 1992-03-10 1993-09-15 GALATRON S.r.l. Mitigeur d'eau chaude et froide avec régulateur thermostatique
EP0560737A3 (en) * 1992-03-10 1994-05-18 Galatron Srl Hot and cold water mixer valve with thermostatic regulator
DE4324547A1 (de) * 1993-05-12 1994-11-17 Ideal Standard Sanitäre Mischbatterie mit Thermostatsteuerung
US5709339A (en) * 1993-05-12 1998-01-20 Ideal-Standard Gmbh Sanitary mixing faucet with thermostat control
DE4324547C2 (de) * 1993-05-12 1998-03-12 Ideal Standard Sanitäre Mischbatterie mit Thermostatsteuerung
EP1376291A2 (fr) * 2002-06-26 2004-01-02 Kohler Mira Ltd Mitigeur thermostatique
EP1376291A3 (fr) * 2002-06-26 2004-12-01 Kohler Mira Ltd Mitigeur thermostatique
US7240850B2 (en) 2002-06-26 2007-07-10 Kohler Mira Limited Thermostatic mixing valve
US7669776B2 (en) 2002-06-26 2010-03-02 Kohler Mira Limited Thermostatic mixing valve
US8167215B2 (en) 2004-12-15 2012-05-01 Kohler Mira Limited Thermostatic mixing valves utilizing wave springs
US8517282B2 (en) 2004-12-15 2013-08-27 Kohler Mira Limited Thermostatic mixing valve responsive to pressure changes
ITMI20092053A1 (it) * 2009-11-23 2011-05-24 O M B G S R L Cartuccia miscelatrice termostatica per dispositivi miscelatori di acqua calda e acqua fredda, particolarmente per componenti igienico-sanitari.

Also Published As

Publication number Publication date
IT7851988A0 (it) 1978-11-21
FI783503A (fi) 1979-05-23
EP0006942A1 (fr) 1980-01-23
IT1106338B (it) 1985-11-11
DK493278A (da) 1979-05-23
NL7811211A (nl) 1979-05-25
JPS55500133A (fr) 1980-03-13

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