US20020050529A1 - Thermostatic valve - Google Patents

Thermostatic valve Download PDF

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Publication number
US20020050529A1
US20020050529A1 US09/484,518 US48451800A US2002050529A1 US 20020050529 A1 US20020050529 A1 US 20020050529A1 US 48451800 A US48451800 A US 48451800A US 2002050529 A1 US2002050529 A1 US 2002050529A1
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US
United States
Prior art keywords
valve
control
disk
thermostatic valve
section
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.)
Granted
Application number
US09/484,518
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US6454175B1 (en
Inventor
Werner Lorch
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.)
Hansgrohe SE
Original Assignee
Hansgrohe SE
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
Priority to DE19901852A priority Critical patent/DE19901852A1/en
Priority to DK00100602T priority patent/DK1022637T3/en
Priority to EP00100602A priority patent/EP1022637B1/en
Priority to ES00100602T priority patent/ES2241512T3/en
Priority to DE50010198T priority patent/DE50010198D1/en
Priority to AT00100602T priority patent/ATE294971T1/en
Application filed by Hansgrohe SE filed Critical Hansgrohe SE
Priority to US09/484,518 priority patent/US6454175B1/en
Assigned to HANSGROHE AG reassignment HANSGROHE AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LORCH, WERNER
Publication of US20020050529A1 publication Critical patent/US20020050529A1/en
Application granted granted Critical
Publication of US6454175B1 publication Critical patent/US6454175B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/13—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures
    • G05D23/1306—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids
    • G05D23/132—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element
    • G05D23/134—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element measuring the temperature of mixed fluid
    • G05D23/1346—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element measuring the temperature of mixed fluid with manual temperature setting means
    • G05D23/1353—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element measuring the temperature of mixed fluid with manual temperature setting means combined with flow controlling means
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86815—Multiple inlet with single outlet
    • Y10T137/86823—Rotary valve

Definitions

  • Thermostatic valves are known. They contain an expansion element located in the mixed water and regulate the temperature of the latter. A control or operating member is provided for setting the desired temperature. A second control or operating member is used for opening and closing the valve.
  • the problem of the invention is to provide a compactly constructed, quiet fitting having a thermostat.
  • the thermostatic valve proposed by the invention is constructed in such a way that the mixed water outlet is restricted, so that the valve operates quietly.
  • the mixed water outlet is restricted in that the flow cross-section of said outlet is smaller than the sum of the flow cross-sections of the cold water inlet and the hot water inlet.
  • restriction essentially only takes place in the valve control.
  • the cross-section of the inlets into the valve and the cross-section of the outlet from the valve are modified for quantity control purposes.
  • the invention proposes that the water flows axially into the valve and leaves the latter axially again.
  • the valve has a disk control, in which two disks are provided, which engage on one another in a common control surface, one of the two disks being slidable or rotatable with respect to the other.
  • the water passes through the disk control.
  • the quantity control is brought about by turning one control disk.
  • FIG. 1 An axial section through a thermostatic valve according to the invention.
  • FIG. 2 A view of a fixed control disk from below.
  • FIG. 3 A section through the fixed control disk of FIG. 2.
  • FIG. 4 A view of the control disk of FIG. 2 from above.
  • FIG. 5 A further section through the control disk of FIGS. 2 and 4.
  • FIG. 6 A view of the movable control disk from below.
  • FIG. 7 A section through the movable control disk.
  • FIG. 8 A view of the movable control disk of FIG. 6 from above.
  • FIG. 9 A second section through the movable control disk.
  • FIG. 10 Diagrammatically a plan view of the two control disks with a partly opened valve.
  • FIG. 1 is an axial section through a thermostatic valve, as proposed by the present invention.
  • the valve is constructed as a valve cartridge and can be inserted in the manner shown into a fitting body, which is not shown for reasons of simplification.
  • the valve contains an expansion element 1 , which controls a thermostatic valve 2 .
  • a first control or operating member 3 is provided, which in the represented embodiment passes centrally through a second control or operating member 4 .
  • a movable control disk 5 can be rotated with the aid of the second operating member 4 .
  • the valve cartridge contains a base 6 , which seals the cartridge on its side intended for insertion in the fitting body.
  • the cartridge base 6 contains a centring shoulder 7 .
  • a fixed control disk 8 which is e.g. made from a ceramic material.
  • the movable control disk 5 On the fixed control disk 8 is located the movable control disk 5 , which can be rotated with the aid of the operating member 4 .
  • the fixed control disk 8 has two openings 9 , whereof one opening 9 is intended for cold water and the other opening 9 for hot water.
  • the rotary control disk 5 has two openings 10 .
  • the connections of the openings 9 of the fixed control disk 8 to the connections of the fitting body takes place with the aid of the base 6 , which has several sealed ports.
  • the fitting operates in such a way that the cold and hot water flows through the openings 9 and 10 into the interior of the valve, the valve element 2 bringing about the desired mixing ratio between the hot and cold water.
  • the mixed water flows through an opening of the movable control disk 5 , which is not shown in FIG. 1, into an also not shown opening of the fixed control disk 8 and from there through a central opening 11 of the base 6 into the corresponding channel of the fitting body.
  • FIGS. 2 to 5 show details of the fixed control disk 8 , which is also referred to as a distributor disk.
  • FIG. 2 is a view of said disk from below, i.e. from the direction of the base 6 .
  • the openings 9 for the cold and hot water are constructed as arcuate slots with coaxial outer and inner edges. Both openings extend over somewhat less than a quadrant.
  • On the outside of the circular distributor disk 8 are provided four notches 12 serving to correctly position the distributor disk 8 in the cartridge.
  • a depression 13 which is linked by means of two ports 14 to the opposite side visible in FIG. 4.
  • These two ports 14 are roughly shaped like a rounded circular sector and are symmetrical to a first diameter and on a second diameter perpendicular thereto.
  • FIG. 3 is a section through the distributor disk 8 positioned in such a way that the depression 13 is visible.
  • FIG. 4 shows the surface 15 of the distributor disk 8 facing the movable control disk 5 . It can be seen that the two ports 14 in said surface issue in the form of separate openings.
  • FIGS. 6 to 9 show the movable control disk 5 , FIGS. 6 to 9 being on the same scale as FIGS. 2 to 5 .
  • the arrangement of the ports 10 for cold and hot water is the same as the arrangement for the distributor disk 8 .
  • the ports 16 issuing in the underside 17 of the movable control disk 5 .
  • said ports 16 pass into a depression 18 , which corresponds to the distributor disk depression 13 .

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

Abstract

A thermostatic valve contains a control system comprising two disks for the quantity control. One of the two disks is placed in fixed manner in the valve casing, whereas the second disk can be rotated. Each of the two disks contains an inlet opening for cold water and an inlet opening for hot water. These openings are made to coincide to a greater or lesser extent for the quantity control.
In addition, each of the control disks contains a subdivided outlet opening for the mixed water leaving the valve. On rotating the valve there is also a modification of the flow cross-section of the outlet opening. This is also brought about by a greater or lesser coincidence of the openings.

Description

  • Thermostatic valves are known. They contain an expansion element located in the mixed water and regulate the temperature of the latter. A control or operating member is provided for setting the desired temperature. A second control or operating member is used for opening and closing the valve. [0001]
  • The problem of the invention is to provide a compactly constructed, quiet fitting having a thermostat. [0002]
  • According to the invention this problem is solved by a thermostatic valve having the features of claim [0003] 1. Further developments of the invention form the subject matter of the dependent claims, whose wording, like that of the abstract, is by reference made into part of the content of the description.
  • The thermostatic valve proposed by the invention is constructed in such a way that the mixed water outlet is restricted, so that the valve operates quietly. [0004]
  • According to a further development of the invention, the mixed water outlet is restricted in that the flow cross-section of said outlet is smaller than the sum of the flow cross-sections of the cold water inlet and the hot water inlet. Thus, restriction essentially only takes place in the valve control. [0005]
  • According to a further development of the invention, the cross-section of the inlets into the valve and the cross-section of the outlet from the valve are modified for quantity control purposes. [0006]
  • According to another development of the invention, on closing the valve the outlet is closed before the inlet. This measure also contributes to the restricting of the valve. [0007]
  • The invention proposes that the water flows axially into the valve and leaves the latter axially again. [0008]
  • According to a further development of the invention, the valve has a disk control, in which two disks are provided, which engage on one another in a common control surface, one of the two disks being slidable or rotatable with respect to the other. [0009]
  • According to the invention, on entering and leaving the valve, the water passes through the disk control. [0010]
  • According to the invention, the quantity control is brought about by turning one control disk.[0011]
  • Further features, details and advantages of the invention can be gathered from the following description of a preferred embodiment and the attached drawings, wherein show: [0012]
  • FIG. 1 An axial section through a thermostatic valve according to the invention. [0013]
  • FIG. 2 A view of a fixed control disk from below. [0014]
  • FIG. 3 A section through the fixed control disk of FIG. 2. [0015]
  • FIG. 4 A view of the control disk of FIG. 2 from above. [0016]
  • FIG. 5 A further section through the control disk of FIGS. 2 and 4. [0017]
  • FIG. 6 A view of the movable control disk from below. [0018]
  • FIG. 7 A section through the movable control disk. [0019]
  • FIG. 8 A view of the movable control disk of FIG. 6 from above. [0020]
  • FIG. 9 A second section through the movable control disk. [0021]
  • FIG. 10 Diagrammatically a plan view of the two control disks with a partly opened valve. [0022]
  • FIG. 1 is an axial section through a thermostatic valve, as proposed by the present invention. The valve is constructed as a valve cartridge and can be inserted in the manner shown into a fitting body, which is not shown for reasons of simplification. The valve contains an expansion element [0023] 1, which controls a thermostatic valve 2. For preventing the starting position of the thermostatic valve a first control or operating member 3 is provided, which in the represented embodiment passes centrally through a second control or operating member 4. A movable control disk 5 can be rotated with the aid of the second operating member 4.
  • The valve cartridge contains a [0024] base 6, which seals the cartridge on its side intended for insertion in the fitting body. The cartridge base 6 contains a centring shoulder 7. Immediately above the base is located a fixed control disk 8, which is e.g. made from a ceramic material. On the fixed control disk 8 is located the movable control disk 5, which can be rotated with the aid of the operating member 4. The fixed control disk 8 has two openings 9, whereof one opening 9 is intended for cold water and the other opening 9 for hot water. In a similar manner the rotary control disk 5 has two openings 10. The connections of the openings 9 of the fixed control disk 8 to the connections of the fitting body takes place with the aid of the base 6, which has several sealed ports. The fitting operates in such a way that the cold and hot water flows through the openings 9 and 10 into the interior of the valve, the valve element 2 bringing about the desired mixing ratio between the hot and cold water. The mixed water flows through an opening of the movable control disk 5, which is not shown in FIG. 1, into an also not shown opening of the fixed control disk 8 and from there through a central opening 11 of the base 6 into the corresponding channel of the fitting body.
  • FIGS. [0025] 2 to 5 show details of the fixed control disk 8, which is also referred to as a distributor disk. FIG. 2 is a view of said disk from below, i.e. from the direction of the base 6. The openings 9 for the cold and hot water are constructed as arcuate slots with coaxial outer and inner edges. Both openings extend over somewhat less than a quadrant. On the outside of the circular distributor disk 8 are provided four notches 12 serving to correctly position the distributor disk 8 in the cartridge.
  • In the centre of the [0026] distributor disk 8 is provided a depression 13, which is linked by means of two ports 14 to the opposite side visible in FIG. 4. These two ports 14 are roughly shaped like a rounded circular sector and are symmetrical to a first diameter and on a second diameter perpendicular thereto.
  • FIG. 3 is a section through the [0027] distributor disk 8 positioned in such a way that the depression 13 is visible.
  • FIG. 4 shows the [0028] surface 15 of the distributor disk 8 facing the movable control disk 5. It can be seen that the two ports 14 in said surface issue in the form of separate openings.
  • In similar representations FIGS. [0029] 6 to 9 show the movable control disk 5, FIGS. 6 to 9 being on the same scale as FIGS. 2 to 5. At a first glance it is possible to see that the arrangement of the ports 10 for cold and hot water is the same as the arrangement for the distributor disk 8. This also applies with regards to the ports 16 issuing in the underside 17 of the movable control disk 5. On the opposite top surface shown in FIG. 8 said ports 16 pass into a depression 18, which corresponds to the distributor disk depression 13. Here again there are notches 19 in order to maintain a correct positioning of the movable control disk 5 in the cage 20, which transfers the rotary movement of the operating member 4 to the control disk 5.
  • In the assembled state of the valve control the [0030] distributor disk side 15 shown in FIG. 5 engages on the underside 17 of the movable control disk 5 shown in FIG. 6. The control is constructed in such a way that both on entering and leaving the control, the water passes through the openings of both control disks. The flow cross-section of both the inlet and the outlet is modified by rotating the movable control disk 5. This is diagrammatically illustrated in FIG. 10, which shows the two control disks placed on one another in a specific angular position. Both the inlet openings 9, 10 and the outlet openings 16, 14 overlap to a greater or lesser extent, as a function of the position of the movable control disk 5. This means that a change to the flow cross-section in the quantity control takes place both on entering and leaving the valve. This ensures that the flow cross-section of the outlet is always smaller than the flow cross-section of the inlets and e.g. assumes a value of two thirds.

Claims (8)

1. Thermostatic valve, comprising a fitting body, a cold water inlet leading into it, a hot water inlet leading into the fitting body, a mixed water outlet passing out of the fitting body, a thermostat for determining the mixed water temperature, a quantity control valve, in which the mixed water outlet from the valve is restricted.
2. Thermostatic valve according to claim 1, wherein the flow cross-section of the mixed water outlet is smaller than the sum of the flow cross-sections of the cold water inlet and the hot water inlet.
3. Thermostatic valve according to claim 1, wherein the cross-section of the inlets into the valve and the cross-section of the outlet from the valve are modified for quantity control purposes.
4. Thermostatic valve according to claim 1, wherein the outlet is closed before the inlets on closing the valve.
5. Thermostatic valve according to claim 1, wherein the entry into the valve an the exit from the valve take place axially.
6. Thermostatic valve according to claim 1, wherein the quantity control valve has a disk control.
7. Thermostatic valve according to claim 1, wherein the water to be controlled passes through the quantity control on entering and leaving the valve.
8. Thermostatic valve according to claim 6, wherein the quantity control takes place through a rotation of the movable control disk.
US09/484,518 1999-01-19 2000-01-18 Thermostatic valve Expired - Fee Related US6454175B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE19901852A DE19901852A1 (en) 1999-01-19 1999-01-19 Thermostatic valve
EP00100602A EP1022637B1 (en) 1999-01-19 2000-01-13 Thermostatic valve
ES00100602T ES2241512T3 (en) 1999-01-19 2000-01-13 THERMOSTATIC VALVE.
DE50010198T DE50010198D1 (en) 1999-01-19 2000-01-13 thermostatic valve
DK00100602T DK1022637T3 (en) 1999-01-19 2000-01-13 thermostatic valve
AT00100602T ATE294971T1 (en) 1999-01-19 2000-01-13 THERMOSTAT VALVE
US09/484,518 US6454175B1 (en) 1999-01-19 2000-01-18 Thermostatic valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19901852A DE19901852A1 (en) 1999-01-19 1999-01-19 Thermostatic valve
US09/484,518 US6454175B1 (en) 1999-01-19 2000-01-18 Thermostatic valve

Publications (2)

Publication Number Publication Date
US20020050529A1 true US20020050529A1 (en) 2002-05-02
US6454175B1 US6454175B1 (en) 2002-09-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
US09/484,518 Expired - Fee Related US6454175B1 (en) 1999-01-19 2000-01-18 Thermostatic valve

Country Status (6)

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US (1) US6454175B1 (en)
EP (1) EP1022637B1 (en)
AT (1) ATE294971T1 (en)
DE (2) DE19901852A1 (en)
DK (1) DK1022637T3 (en)
ES (1) ES2241512T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090314844A1 (en) * 2006-08-03 2009-12-24 Vernet Thermostatic cartridge with concentric temperature and flow rate controls, and a mixer fitted with such a cartridge
GB2530524A (en) * 2014-09-24 2016-03-30 Kohler Mira Ltd Fluid Control Valves

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DE10048041B4 (en) * 2000-09-29 2005-12-15 Ideal-Standard Gmbh & Co. Ohg Sanitary mixer tap
ES2311192T3 (en) * 2000-12-06 2009-02-01 Valquest Limited LIQUID MIXER.
US7240850B2 (en) * 2002-06-26 2007-07-10 Kohler Mira Limited Thermostatic mixing valve
ITBS20020118U1 (en) * 2002-11-07 2004-05-08 Zipponi Rubinetterie Di Nember Oscar THERMOSTATIC MIXING VALVE EQUIPPED WITH CARTRIDGE BODY
US7163157B2 (en) * 2003-12-02 2007-01-16 Watts Regulator Co. Automatic compensating valve for individual shower and tub/shower combination fixtures
GB0427420D0 (en) * 2004-12-15 2005-01-19 Kohler Mira Ltd Improvements in or relating to thermostatic mixing valves
KR100787512B1 (en) * 2005-09-06 2007-12-21 김종구 Water suppling valve cartridge
DE102006036148A1 (en) * 2006-07-31 2008-02-07 Hansgrohe Ag Mixer cartridge for insertion into sanitary fitting, has cartridge base closing cartridge housing in direction of retainer of sanitary fitting, where base is held opposite to cartridge housing in movable manner
IT1391860B1 (en) * 2008-09-10 2012-01-27 Studio Tec Sviluppo Richerche PERFECT THERMOSTATIC MIXER
CN103775681B (en) * 2013-04-27 2015-05-20 广州海鸥卫浴用品股份有限公司 Jet shower device
US10527180B2 (en) 2016-07-26 2020-01-07 Tsai-Chen Yang Faucet cartridge
HUP1900162A1 (en) * 2019-05-16 2020-11-30 Kerox Ipari Es Kereskedelmi Kft Pushbutton-controlled mixing faucet
DE102020102434A1 (en) 2020-01-31 2021-08-05 Grohe Ag Mixed water fitting with compact thermostatic valve

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US3674048A (en) * 1970-04-09 1972-07-04 Masco Corp Mixing valve
IT1108351B (en) * 1978-04-04 1985-12-09 Knapp Alfons MIXER FAUCET WITH PRE-CLOSURE PROVISION
DE2928330C2 (en) * 1979-07-13 1982-06-09 Friedrich Grohe Armaturenfabrik Gmbh & Co, 5870 Hemer Mixer tap
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US4865456A (en) * 1987-10-01 1989-09-12 Gretag Aktiengesellschaft Measuring head
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US6089462A (en) * 1998-02-04 2000-07-18 Officina Meccanica Ruga Osvaldo Thermostatic mixing valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090314844A1 (en) * 2006-08-03 2009-12-24 Vernet Thermostatic cartridge with concentric temperature and flow rate controls, and a mixer fitted with such a cartridge
US8074893B2 (en) * 2006-08-03 2011-12-13 Vernet Thermostatic cartridge with concentric temperature and flow rate controls, and a mixer fitted with such a cartridge
GB2530524A (en) * 2014-09-24 2016-03-30 Kohler Mira Ltd Fluid Control Valves

Also Published As

Publication number Publication date
ES2241512T3 (en) 2005-11-01
EP1022637B1 (en) 2005-05-04
US6454175B1 (en) 2002-09-24
EP1022637A1 (en) 2000-07-26
DK1022637T3 (en) 2005-09-05
DE19901852A1 (en) 2000-07-20
DE50010198D1 (en) 2005-06-09
ATE294971T1 (en) 2005-05-15

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