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WO2005054972A1 - Mitigeur thermostatique - Google Patents

Mitigeur thermostatique Download PDF

Info

Publication number
WO2005054972A1
WO2005054972A1 PCT/IT2003/000804 IT0300804W WO2005054972A1 WO 2005054972 A1 WO2005054972 A1 WO 2005054972A1 IT 0300804 W IT0300804 W IT 0300804W WO 2005054972 A1 WO2005054972 A1 WO 2005054972A1
Authority
WO
WIPO (PCT)
Prior art keywords
flow rate
mixing valve
thermostatic
thermostatic mixing
rate control
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IT2003/000804
Other languages
English (en)
Inventor
Manolo Ruga
Osvaldo Ruga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PCT/IT2003/000804 priority Critical patent/WO2005054972A1/fr
Priority to AU2003295195A priority patent/AU2003295195A1/en
Publication of WO2005054972A1 publication Critical patent/WO2005054972A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

  • Th present invention relates to taps for mixing hot and cold water in sanitary facilities (wash-basins, showers, bathtubs, etc.), and in particular to a cartridge mixing valve .provided with a thermostatic device suitable to maintain a constant water temperature.
  • conventional single-control mixing taps include a tap body with a cartridge mixing valve (hereinafter simply valve) removably inserted therein and a control lever for controlling a valve group, within the cartridge, made up of a pair of ceramic disks which adjust, the flow of hot and cold water. This adjustment of the water, both in flow rate and in temperature, is carried out through the translation arid rotation, respectively, of a mobile disk over an underlying fixed disk.
  • thermostatic device acts downstream from the valve group by controlling the inflow of hot and cold water into the mixing chamber through respective ports.
  • this control is carried out automatically by a thermosensitive bulb which causes the .shifting of a slider suitable to change the aperture of said ports in the mixing chamber.
  • the object of the present invention is to provide a thermostatic mixing valve suitable to overcome the above-mentioned drawbacks. This object is achieved by means of a valve in which there are provided means for the axial coupling between the transmission member of the flow rate control and the upper disk of the valve group.
  • the advantage of the present valve is therefore that of preventing the above- mentioned interference by making integral the two members on which the axial push of the pressure is exerted so as to achieve an automatic almost total counterbalancing of said push.
  • the only difference in pressure will be given by the area of the cold water passage port through the upper disk, which area is however small with respect to the total area on which the pressure in the axial ' direction is exerted. This results in the flow late control remaining always “soft" and easy to operate regardless of the temperature setting.
  • a valve according to the present invention includes a valve group, described in greater detail further on, consisting of a mobile upper disk 5, a fixed lower disk 4, a lower gasket 3 and a base 2, below which a relevant gasket 1 is arranged for the mounting into the tap body.
  • lateral openings C, F for the inflow of hot and cold water, respectively, and the central opening M for the outflow of the mixed water.
  • a lower spring 6 pushing from below a slider 8 that sealingly- slides, thanks to an O-ring 7, in disk 5 and is pushed from above by a thermostatic member 9 passing through it.
  • an insert 10 that, thanks to an O-ring 11, is sealingly introduced in the central opening of a member 13 that transmits the flow rate control.
  • Member 13 is provided with a plurality of stems extending downward to engage corresponding lateral recesses formed along the periphery of the upper disk 5 so as to control the rotation of the latter.
  • the top face of the upper disk 5 is sealed, thanks to an O-ring 12, against said member 13, so that the water is restrained below member 13. In this way the water pressure can not interfere with the operation of the temperature and flow rate controls located in the top portion of the valve.
  • the operation of the thermostatic device of the present valve is similar to that of conventional thermostatic valves and is based on the thermostatic member 9 which, according to the mixed water temperature detected by the bottom bulb, causes the shifting of slider- 8 within the transmission member 13 and the upper disk 5.
  • the thermostatic member 9 shifts slider 8 so as to change the extent of aperture of the inflow ports of the hot and cold water. These ports are formed, respectively, between the lower edge of slider 8 and the upper edge of base 2, within the upper disk 5, and between the upper edge of slider 8 and the transmission member 13.
  • the position of the adjusting bar 17, and therefore the compression of the lower spring 6, is set by rotating, through a non-illustrated knob, a temperature control member 18 which is screwed on the top portion of bar 17.
  • the control member 18 projects from a housing body 19, which encloses the above-described elements and is coupled to base 2, and is axially locked on said body 19 by a retaining ring 22. Similarly, a flow rate control member 20 is inserted on the outside of body 19 and axially locked thereon by a retaining ring 21. Member 20 externally engages the transmission member 13 by passing through suitable slots formed in body 19; on the latter there is also formed a grooved surface, above a similar grooved surface of member 20, to secure a fixed reference member for the setting of the temperature through member 18.
  • the novel aspect of the valve according to the present invention is given by ; the fact that disk 5 is provided in the lateral recesses with at least two teeth 5a (only one is visible in the drawings) suitable to engage corresponding apertures 13a formed in the stems of the transmission member 13.
  • disk 5 and member 13 are restrained not only in rotation but also in the axial direction.
  • the pressure exerted by the cold water on the crown of the bottom face of member 13 outside slider 8 is counterbalanced by the pressure exerted on the crown of the top face of disk 5, but at the port for the passage of cold water through disk 5.

Landscapes

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

Abstract

L'invention concerne un mitigeur thermostatique qui comporte un système de couplage axial entre un élément (13) de transmission de la commande de débit, contre lequel la pièce coulissante (8) du mitigeur vient buter pour arrêter le flux d'eau froide, et le disque supérieur (5) du groupe de vannes. Le disque (5) et l'élément (3) étant limités non seulement en rotation mais aussi dans la direction axiale, la pression exercée par l'eau froide sur la couronne de la face inférieure de l'élément (13), à l'extérieur de la pièce coulissante (8), est équilibrée par la pression exercée sur la couronne de la face supérieure du disque (5), sauf à l'orifice de passage de l'eau froide traversant le disque (5). Ce système permet donc à l'utilisateur de fermer complètement l'arrivée d'eau froide lorsque la pièce coulissante (8) vient buter contre l'élément (13), sans accroître sensiblement la difficulté d'actionnement de la commande de débit.
PCT/IT2003/000804 2003-12-05 2003-12-05 Mitigeur thermostatique Ceased WO2005054972A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/IT2003/000804 WO2005054972A1 (fr) 2003-12-05 2003-12-05 Mitigeur thermostatique
AU2003295195A AU2003295195A1 (en) 2003-12-05 2003-12-05 Thermostatic mixing valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2003/000804 WO2005054972A1 (fr) 2003-12-05 2003-12-05 Mitigeur thermostatique

Publications (1)

Publication Number Publication Date
WO2005054972A1 true WO2005054972A1 (fr) 2005-06-16

Family

ID=34640340

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2003/000804 Ceased WO2005054972A1 (fr) 2003-12-05 2003-12-05 Mitigeur thermostatique

Country Status (2)

Country Link
AU (1) AU2003295195A1 (fr)
WO (1) WO2005054972A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7115849B2 (en) 1995-02-03 2006-10-03 The Regents Of The University Of Colorado Wavefront coding interference contrast imaging systems
EP2423775A1 (fr) 2010-08-27 2012-02-29 Gebi Sistemi S.r.l. Dispositif de mélange d'eau avec réglage automatique du débit et de la température
CN103075539A (zh) * 2012-12-28 2013-05-01 珠海市舒丽玛温控卫浴设备有限公司 单柄双控恒温阀芯
WO2014142386A1 (fr) * 2013-03-15 2014-09-18 주식회사 이엘엔터프라이즈 Cartouche de thermostat
US9632514B2 (en) 2010-05-21 2017-04-25 Delta Faucet Company Electronic shower system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998035280A1 (fr) * 1997-02-06 1998-08-13 Officina Meccanica Ruga Osvaldo Mitigeur thermostatique
WO2000068754A1 (fr) * 1999-05-07 2000-11-16 Masco Corporation Mitigeur thermostatique a stabilite amelioree
US6557770B2 (en) * 2001-03-15 2003-05-06 Vernet S.A. Thermostatic cartridge for mixer taps

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998035280A1 (fr) * 1997-02-06 1998-08-13 Officina Meccanica Ruga Osvaldo Mitigeur thermostatique
WO2000068754A1 (fr) * 1999-05-07 2000-11-16 Masco Corporation Mitigeur thermostatique a stabilite amelioree
US6557770B2 (en) * 2001-03-15 2003-05-06 Vernet S.A. Thermostatic cartridge for mixer taps

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7115849B2 (en) 1995-02-03 2006-10-03 The Regents Of The University Of Colorado Wavefront coding interference contrast imaging systems
US9632514B2 (en) 2010-05-21 2017-04-25 Delta Faucet Company Electronic shower system
EP2423775A1 (fr) 2010-08-27 2012-02-29 Gebi Sistemi S.r.l. Dispositif de mélange d'eau avec réglage automatique du débit et de la température
CN103075539A (zh) * 2012-12-28 2013-05-01 珠海市舒丽玛温控卫浴设备有限公司 单柄双控恒温阀芯
WO2014142386A1 (fr) * 2013-03-15 2014-09-18 주식회사 이엘엔터프라이즈 Cartouche de thermostat
CN105102867A (zh) * 2013-03-15 2015-11-25 El企业有限公司 恒温阀芯

Also Published As

Publication number Publication date
AU2003295195A1 (en) 2005-06-24

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