EP0374727A1 - Valve à trois voies pour chaudière à gaz - Google Patents

Valve à trois voies pour chaudière à gaz Download PDF

Info

Publication number
EP0374727A1
EP0374727A1 EP89123125A EP89123125A EP0374727A1 EP 0374727 A1 EP0374727 A1 EP 0374727A1 EP 89123125 A EP89123125 A EP 89123125A EP 89123125 A EP89123125 A EP 89123125A EP 0374727 A1 EP0374727 A1 EP 0374727A1
Authority
EP
European Patent Office
Prior art keywords
shutter
circuit
sanitary
warm water
cold water
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.)
Withdrawn
Application number
EP89123125A
Other languages
German (de)
English (en)
Inventor
SANTE doing business under the trading style THERMOMAT DI RAGAZZI P.I. SANTE RAGAZZI
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
Publication of EP0374727A1 publication Critical patent/EP0374727A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water

Definitions

  • the invention relates to a three-way valve for gas boiler.
  • gas boilers for domestic use intended for the combined production of warm water for the room-­heating circuit and of warm water for sanitary uses, comprise a burner of such power as to satisfy exclusively the heat demand of only one of said circuits.
  • the operating layout of said boilers therefore comprises a three-way valve with one port for the inflow of warm water produced by the burner and two outflow ports: the first outflow port sends the warm water to the heating circuit, whereas the second one sends the warm water to means which allow to transfer all the heat developed by the burner to the water of the sanitary circuit and which can be constituted for example by a bypass, when a coil for the heating-circuit water and a coil for the sanitary-circuit water are provided in front of the burner, or by a heat exchanger in which the water of the sanitary circuit receives heat from the water heated by the burner.
  • the operation of the three-way valve is automatic and is caused by a motor which acts on a shutter when cold water starts to arrive from the sanitary circuit; said shutter closes the outflow port of the warm water toward the heating circuit and simultaneously opens the other port to allow all the heat produced by the burner to be transferred to the water of the sanitary circuit; said motor acts again on the shutter so as to open the port which leads to the heating circuit, simultaneously closing the other port, when the flow of sanitary-circuit cold water ends.
  • the shutter actuation motor of known three-way valves comprises means, such as for example an elastic membrane or an electric motor, which receive the signal to start operation from a detected value constituted by the differential pressure which occurs between the upstream and downstream portions of a throttled portion provided on the sanitary circuit when water is present therein and obviously ceases when the inflow of water therein ceases.
  • the aim of the present invention is to provide a three-way valve for gas boiler in which the shutter actuation motor has an extremely simple configuration with a consequent reduction in costs and with safety in operation.
  • a three-way valve for gas boiler adapted to receive warm water produced by the burner of the boiler and comprising a shutter adapted to selectively open the warm water outflow port toward the heating circuit and the warm water outflow port toward means which allow to transfer all the heat developed by the burner to the water of the sanitary circuit, said shutter being actuated by a motor adapted to automatically start operation upon every inflow of cold water of the sanitary circuit into the boiler so as to move said shutter to the closed position of the warm water outflow port toward the heating circuit, with return to the open position of said port when the inflow of sanitary-circuit cold water ceases, characterized in that the shutter actuation motor comprises a heat-sensitive element adapted to axially expand when the temperature of its walls rises, said element acting on the shutter in contrast with elastic means and being inserted in a coupling associated with the valve and adapted to be flown by the sanitary-circuit cold water entering the boiler, so as to be lapped at least by said cold water.
  • 1 generally indicates the three-way valve
  • 2 indicates the inflow port for the warm water produced in the coil 3 by the burner 4
  • 5 indicates the outflow port for the warm water toward the heating circuit, which comprises elements such as 6 and a circulation pump 7
  • 8 indicates the outflow port for the warm water through the bypass 9.
  • the shutter operates in the body of the valve 1 and is adapted to selectively open the outflow ports 5 and 8; said shutter comprises the supporting stem 10a for the plate 10b closing the port 5, which plate operates in contrast with the spring 10c and the plate 10d which operates in contrast with the spring 10e for closing the port 8.
  • the motor which automatically actuates the shutter 10 between the two above described extreme positions at every beginning and end of cold water inflow to the sanitary circuit comprises, according to a salient characteristic of the invention, the heat-sensitive element 14, of a per se known kind, which is adapted to axially dilate when the temperature of its walls rises, since it comprises a container 14a of a substance which, indeed by dilating when the temperature of the wall rises, causes the extraction of the rod 14b.
  • Said heat-sensitive element 14 is inserted, so as to directly contact, by means of the rod 14b, the upper end of the stem 10a of the shutter 10, within the connection 15, which comprises the duct 15a for conveying all the cold water of the sanitary circuit entering from 12 and is associated, with the plug 16 interposed, with the body of the valve 1; ports such as 17, provided in the plug 16, allow the flow of warm water to lap a lower wall portion of the heat-sensitive element 14 which is separated, by means of the gasket 18, from the upper portion which is intended to be lapped by the cold water of the sanitary circuit.
  • the progressive heating of the element 14 causes the progressive protrusion of the rod 14b which, overcoming the action of the spring 10c, lowers the shutter 10 until the plate 10d is in contact with its own sealing seat; an extra­stroke of the rod 14b being allowed by the presence of the spring 10e; the condition thus reached causes the inflow of warm water exclusively through the outflow port 5 to the heating circuit, and this condition persists until a new inflow of cold water into the sanitary circuit occurs, with a consequent cooling of the heat-sensitive element 14 and retraction of the rod 14b in the position of figure 1.
  • the invention provides an extremely simple device which ensures a very delicate actuation of the shutter such as is required to avoid thermal shocks in the boiler caused by sudden temperature variations.
  • the materials employed, as well as the shapes and dimensions, may be any according to the requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Multiple-Way Valves (AREA)
EP89123125A 1988-12-19 1989-12-14 Valve à trois voies pour chaudière à gaz Withdrawn EP0374727A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8818137A IT1226450B (it) 1988-12-19 1988-12-19 Valvola a tre vie per caldaia a gas
IT1813788 1988-12-19

Publications (1)

Publication Number Publication Date
EP0374727A1 true EP0374727A1 (fr) 1990-06-27

Family

ID=11152268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89123125A Withdrawn EP0374727A1 (fr) 1988-12-19 1989-12-14 Valve à trois voies pour chaudière à gaz

Country Status (2)

Country Link
EP (1) EP0374727A1 (fr)
IT (1) IT1226450B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2669405A1 (fr) * 1990-11-19 1992-05-22 Perge Investissement Appareil et procede pour reguler la temperature dans une installation de chauffage et installation de chauffage incorporant un tel appareil.
EP0791772A2 (fr) * 1996-02-22 1997-08-27 WILO GmbH Soupape à trois voies pour jonction hydraulique
DE10100886A1 (de) * 2001-01-11 2002-08-14 Bosch Gmbh Robert Umsteuerventil für eine Heizungsanlage
DE10111886A1 (de) * 2001-03-13 2002-10-02 Eberspaecher J Gmbh & Co Abgaskühlelement für einen Abgasstrang einer Brennkraftmaschine
US9332894B2 (en) 2013-09-26 2016-05-10 Gyrus Acmi, Inc. Endoscope system including a resilient reservoir
US9345386B1 (en) 2014-11-24 2016-05-24 Gyrus Acmi, Inc. Adjustable endoscope sheath
US9585547B2 (en) 2014-11-24 2017-03-07 Gyrus Acmi, Inc. Adjustable endoscope sheath
US9782525B2 (en) 2015-01-08 2017-10-10 Gyrus Acmi, Inc. Multi-way valve for a medical instrument
IT201900013851A1 (it) * 2019-08-02 2021-02-02 Mut Mecc Tovo Spa Valvola deviatrice elettrica a tre vie

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1388943A (fr) * 1963-12-27 1965-02-12 Gen Thermique Installation pour la climatisation des locaux et le chauffage de l'eau sanitaire
DE2034636A1 (de) * 1970-06-22 1971-12-30 Joh. Vaillant Kg, 5630 Remscheid Anordnung bei einer Warmwasser-Umlaufheizung
DE2119622B1 (de) * 1971-04-22 1972-05-04 Joh Vaillant Kg Anordnung bei einer Warmwasser-Umlaufheizung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1388943A (fr) * 1963-12-27 1965-02-12 Gen Thermique Installation pour la climatisation des locaux et le chauffage de l'eau sanitaire
DE2034636A1 (de) * 1970-06-22 1971-12-30 Joh. Vaillant Kg, 5630 Remscheid Anordnung bei einer Warmwasser-Umlaufheizung
DE2119622B1 (de) * 1971-04-22 1972-05-04 Joh Vaillant Kg Anordnung bei einer Warmwasser-Umlaufheizung

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2669405A1 (fr) * 1990-11-19 1992-05-22 Perge Investissement Appareil et procede pour reguler la temperature dans une installation de chauffage et installation de chauffage incorporant un tel appareil.
EP0791772A2 (fr) * 1996-02-22 1997-08-27 WILO GmbH Soupape à trois voies pour jonction hydraulique
EP0791772A3 (fr) * 1996-02-22 1998-03-11 WILO GmbH Soupape à trois voies pour jonction hydraulique
DE10100886A1 (de) * 2001-01-11 2002-08-14 Bosch Gmbh Robert Umsteuerventil für eine Heizungsanlage
DE10111886A1 (de) * 2001-03-13 2002-10-02 Eberspaecher J Gmbh & Co Abgaskühlelement für einen Abgasstrang einer Brennkraftmaschine
US10028644B2 (en) 2013-09-26 2018-07-24 Gyrus Acmi, Inc. Oblong endoscope sheath
US10478052B2 (en) 2013-09-26 2019-11-19 Gyrus Acmi, Inc. Oblong endoscope sheath
US11266303B2 (en) 2013-09-26 2022-03-08 Gyrus Acmi, Inc. Oblong endoscope sheath
US10799097B2 (en) 2013-09-26 2020-10-13 Gyrus Acmi, Inc. Endoscope system including a resilient reservoir
US10022040B2 (en) 2013-09-26 2018-07-17 Gyrus Acmi, Inc. Endoscope system including a resilient reservoir
US9332894B2 (en) 2013-09-26 2016-05-10 Gyrus Acmi, Inc. Endoscope system including a resilient reservoir
US10098524B2 (en) 2013-09-26 2018-10-16 Gyrus Acmi, Inc. Endoscope sheath arm
US10631717B2 (en) 2013-09-26 2020-04-28 Gyrus Acmi, Inc. Endoscope sheath arm
US9345386B1 (en) 2014-11-24 2016-05-24 Gyrus Acmi, Inc. Adjustable endoscope sheath
US10918263B2 (en) 2014-11-24 2021-02-16 Gyrus Acmi, Inc. Adjustable endoscope sheath
US9585547B2 (en) 2014-11-24 2017-03-07 Gyrus Acmi, Inc. Adjustable endoscope sheath
US11684244B2 (en) 2014-11-24 2023-06-27 Gyrs ACMI, Inc. Adjustable endoscope sheath
US9782525B2 (en) 2015-01-08 2017-10-10 Gyrus Acmi, Inc. Multi-way valve for a medical instrument
US10987453B2 (en) 2015-01-08 2021-04-27 Gyros Acmi, Inc. Multi-way valve for a medical instrument
IT201900013851A1 (it) * 2019-08-02 2021-02-02 Mut Mecc Tovo Spa Valvola deviatrice elettrica a tre vie

Also Published As

Publication number Publication date
IT8818137A0 (it) 1988-12-19
IT1226450B (it) 1991-01-16

Similar Documents

Publication Publication Date Title
EP0374727A1 (fr) Valve à trois voies pour chaudière à gaz
US3906928A (en) Solar heater control system and method
US3426971A (en) Arrangement in a hot-water circulation heating with domestic water heater
JPH04306454A (ja) 流体調整システム
US4171771A (en) Central heating systems
US2704188A (en) Water heater
US4942849A (en) Fail-safe coolant thermostat system for an internal combustion engine
US2194805A (en) Heating system
GB2027949A (en) Central heating systems
JP2727172B2 (ja) 自動車用暖房装置
US2346590A (en) Inner-tube radiation with modulating trap
US3885736A (en) Hot water controlling device
US2913182A (en) Temperature control system for a storage water heater
JPS6153628B2 (fr)
JPS6022139B2 (ja) 凍結防止装置
JPS586167Y2 (ja) セントラルヒ−ティングシステム用流体制御装置
US2246566A (en) Heating system
US3459161A (en) Installation for controlling the cooling medium temperature to a predetermined desired value with an internal combustion engine
GB1526378A (en) Central heating and water heating system
JP2003139401A (ja) 元止め式貯湯電気温水器用逃し弁機構
US2331407A (en) Vapor heating system
JPS584254B2 (ja) 遠隔空調制御装置
US2830764A (en) Control apparatus for hot water heating systems
JPS632849Y2 (fr)
JPS5934818Y2 (ja) 湯沸器の湯温制御装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE ES FR GB IT NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19901228