EP0669499A1 - Einrichtung zur Steuerung und Regelung des Gasdurchflusses zu einem Brenner einer Hausheizung - Google Patents

Einrichtung zur Steuerung und Regelung des Gasdurchflusses zu einem Brenner einer Hausheizung Download PDF

Info

Publication number
EP0669499A1
EP0669499A1 EP94202584A EP94202584A EP0669499A1 EP 0669499 A1 EP0669499 A1 EP 0669499A1 EP 94202584 A EP94202584 A EP 94202584A EP 94202584 A EP94202584 A EP 94202584A EP 0669499 A1 EP0669499 A1 EP 0669499A1
Authority
EP
European Patent Office
Prior art keywords
valve seat
obturator
gas
valve
gas passage
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
EP94202584A
Other languages
English (en)
French (fr)
Other versions
EP0669499B1 (de
Inventor
Roberto Mozzato
Gianpiero Turrin
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.)
Sit La Precisa SpA
Original Assignee
Sit La Precisa SpA
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 Sit La Precisa SpA filed Critical Sit La Precisa SpA
Publication of EP0669499A1 publication Critical patent/EP0669499A1/de
Application granted granted Critical
Publication of EP0669499B1 publication Critical patent/EP0669499B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/005—Regulating fuel supply using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/14—Fuel valves electromagnetically operated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/16—Fuel valves variable flow or proportional valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/18—Groups of two or more valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/20—Membrane valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/24—Valve details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2237/00—Controlling
    • F23N2237/10—High or low fire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples

Definitions

  • the present invention relates to a device for controlling and regulating the flow of gas to domestic gas-operated apparatus such as stoves, boilers, water heaters and the like.
  • the principal aim of the present invention is to produce a device of the above-mentioned type having structural and functional features such that it can provide the dual possibility of acting on the flow of gas to the burners of domestic boilers and, more particularly, such that it can make available the further function of modulating the gas flow rate between two levels, MIN and MAX, in addition to the well-known ON-OFF function for intercepting all the valves actually in use.
  • a further object is to provide a device of this type with particularly compact dimensions so as to render it manageable, such that it can be rapidly installed in positions which are always accessible to the user, evidently without decreasing its efficiency and reliability.
  • a device for controlling and regulating the flow of gas to burners of domestic gas-operated apparatus which comprises a valve body, a gas passage which passes through the valve body from an inlet aperture to an outlet aperture, at least one interception valve in the passage and controlled by a respective electromagnet, characterized in that it comprises in the gas passage and downstream of the at least one interception valve:
  • a device according to the invention for regulating and controlling the flow of gas to gas burners of domestic gas-operated apparatus is generally designated 1.
  • This device 1 comprises a valve body 2 through which passes a passage 3, having a particularly sinuous profile and consisting of a plurality of successive portions of different sections, the passage forming a gas path extending through the body 1 from a gas inlet aperture 4 to an outlet aperture 5.
  • This gas path 3 contains an interception valve of the type commonly known as an ON-OFF valve, comprising a valve seat 7 and a plate-type obturator 8, provided with a rod 9 which is mechanically interlocked, by means of a lever 10, to the rotor 11 (or armature) of a control electromagnet 12.
  • an interception valve of the type commonly known as an ON-OFF valve, comprising a valve seat 7 and a plate-type obturator 8, provided with a rod 9 which is mechanically interlocked, by means of a lever 10, to the rotor 11 (or armature) of a control electromagnet 12.
  • a spring 13 constantly stresses the plate-type obturator 8 towards the respective valve seat 7.
  • control valve 14 Downstream of the interception valve 7-8, in the above-mentioned gas passage 3, is a control valve generally designated 14 and shown in greater detail in Figure 2.
  • control valve 14 comprises a valve seat 15 which divides the gas passage 3 into two successive chambers 3a, 3b.
  • a first sump 16 coaxial to the valve seat 15, and a second sump 17 lateral and parallel to the sump 16.
  • the two sumps 16, 17 communicate with one another through a passage 18 cooperating with a screw 19 for regulating the gas flow and accessible from the exterior of the valve body 1.
  • valve seat 15 cooperates with an obturator 20 which comprises a head 21, for detachably engaging the valve seat 15, and a bellows pipe 22, extending coaxially to the valve seat 15.
  • obturator 20 which comprises a head 21, for detachably engaging the valve seat 15, and a bellows pipe 22, extending coaxially to the valve seat 15.
  • a through-hole Passing axially through the head 21 is a through-hole, consisting of two coaxial successive portions, a first portion 23a of smaller diameter and a second portion 23b of larger diameter, defining therebetween an annular shoulder 24, inside the head 21 of the obturator 20.
  • This shoulder 24 forms a valve seat for a plate-type obturator 25, coaxially supported and guided in the head 21.
  • the bellows pipe 22 has one end portion which is fitted, in a manner such that it is tight with respect to compressed gas, on the head 21 and is secured at the other end, still in a manner such that it is tight with respect to pressurized fluid, on the base 3c of the chamber 3a, the assembly being disposed around the mouth of the sump 16.
  • the bellows pipe 22 thus communicates with the gas passage 3 upstream of the valve seat 15 and with the through-hole 23a-23b of the head 21.
  • a rod 28, extending axially through the valve seat 24, has one end secured to the plate-type obturator 25 for supporting and actuating the latter and the other end mechanically interlocked by a lever 29 to the movements of the rotor 30 of an electromagnet 31.
  • Two or more stops 32 for engaging the body of the obturator 20 are secured on the rod 28 and at a predetermined distance from the plate-type obturator 25, in order to urge the obturator 20 to open relative to the valve seat 15. It should, however, be mentioned that this movement is delayed relative to the movement of the plate-type obturator 25 with respect to the valve seat 24 and a delay of this type is directly proportional to the distance between the stops 32 and the plate-type obturator 25.
  • a pressure regulator acting in a gas passage 3 in an intermediate position between the ON-OFF valve 7-8 and the control valve 14 is schematically indicated 33.
  • the gas arriving in the chamber 3a of the gas passage 3 can flow through the sumps 16, 17 and the respective passage 18, inside the bellows 22 and from there, through the valve seat 24, to the burner (not shown) which is thus supplied with the MINIMUM FLOW RATE.
  • This flow rate is calibrated by acting on the regulating screw 19.
  • the gas can then flow to the burner at MAXIMUM FLOW RATE.
  • the obturator 20 can be gradually opened, thus bringing about a corresponding modulation of the gas flow rate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)
  • Feeding And Controlling Fuel (AREA)
EP94202584A 1994-02-22 1994-09-08 Einrichtung zur Steuerung und Regelung des Gasdurchflusses zu einem Brenner einer Hausheizung Expired - Lifetime EP0669499B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI940116 1994-02-22
IT94MI000116U IT232766Y1 (it) 1994-02-22 1994-02-22 Dispositivo per la regolazione ed il controllo del flusso di gas a bruciatori di caldaie di impiego domestico

Publications (2)

Publication Number Publication Date
EP0669499A1 true EP0669499A1 (de) 1995-08-30
EP0669499B1 EP0669499B1 (de) 1998-11-04

Family

ID=11367631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94202584A Expired - Lifetime EP0669499B1 (de) 1994-02-22 1994-09-08 Einrichtung zur Steuerung und Regelung des Gasdurchflusses zu einem Brenner einer Hausheizung

Country Status (3)

Country Link
EP (1) EP0669499B1 (de)
DE (1) DE69414366T2 (de)
IT (1) IT232766Y1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1026446A1 (de) * 1999-02-03 2000-08-09 IABER S.p.A. Luft-Gas Regelanlage
WO2004088206A1 (en) * 2003-04-02 2004-10-14 Sit La Precisa S.P.A. A valve unit for controlling the delivery of a combustible gas
EP1278011A3 (de) * 2001-07-19 2005-01-19 HeaTec Thermotechnik GmbH Ventileinsatz und Ventil für Gasgeräte
US20100300553A1 (en) * 2007-10-22 2010-12-02 Bertelli & Partners S.R.L. Multifunctional safety valve device with incorporated proportional pressure regulator
WO2020065684A1 (en) * 2018-09-25 2020-04-02 Sit S.P.A. Valve delivery apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10135115B4 (de) * 2001-07-19 2004-08-26 Heatec Thermotechnik Gmbh Gasarmatur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279498A (en) * 1965-06-16 1966-10-18 Controls Co Of America Dual fluid valve
FR2426863A1 (fr) * 1978-05-23 1979-12-21 Saunier Duval Electrovalve tous gaz a ouverture progressive pour la commande et la regulation de l'arrivee du gaz a un bruleur d'appareils du genre chaudiere a gaz
GB2210155A (en) * 1987-12-15 1989-06-01 Johnson Service Co Valve assembly for burner control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279498A (en) * 1965-06-16 1966-10-18 Controls Co Of America Dual fluid valve
FR2426863A1 (fr) * 1978-05-23 1979-12-21 Saunier Duval Electrovalve tous gaz a ouverture progressive pour la commande et la regulation de l'arrivee du gaz a un bruleur d'appareils du genre chaudiere a gaz
GB2210155A (en) * 1987-12-15 1989-06-01 Johnson Service Co Valve assembly for burner control

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1026446A1 (de) * 1999-02-03 2000-08-09 IABER S.p.A. Luft-Gas Regelanlage
EP1278011A3 (de) * 2001-07-19 2005-01-19 HeaTec Thermotechnik GmbH Ventileinsatz und Ventil für Gasgeräte
WO2004088206A1 (en) * 2003-04-02 2004-10-14 Sit La Precisa S.P.A. A valve unit for controlling the delivery of a combustible gas
US20100300553A1 (en) * 2007-10-22 2010-12-02 Bertelli & Partners S.R.L. Multifunctional safety valve device with incorporated proportional pressure regulator
US8550112B2 (en) * 2007-10-22 2013-10-08 Bertelli & Partners S.R.L. Multifunctional safety valve device with incorporated proportional pressure regulator
WO2020065684A1 (en) * 2018-09-25 2020-04-02 Sit S.P.A. Valve delivery apparatus
CN112888899A (zh) * 2018-09-25 2021-06-01 西特股份公司 阀门输送设备
US11898749B2 (en) 2018-09-25 2024-02-13 Sit S.P.A. Valve delivery apparatus
CN112888899B (zh) * 2018-09-25 2024-06-11 西特股份公司 阀门输送设备

Also Published As

Publication number Publication date
IT232766Y1 (it) 2000-01-19
ITMI940116U1 (it) 1995-08-22
DE69414366T2 (de) 1999-04-01
ITMI940116V0 (it) 1994-02-22
DE69414366D1 (de) 1998-12-10
EP0669499B1 (de) 1998-11-04

Similar Documents

Publication Publication Date Title
US5735503A (en) Servo pressure regulator for a gas valve
EP2047158B1 (de) Vorrichtung zur steuerung der zufuhr eines brennbaren gases zu einer brennervorrichtung
EP2274545B1 (de) Ausbalanciertes anschlussgehäuse mit integrierter flusskonfiguration
US5435343A (en) Two stage natural/LP gas convertible pressure regulator valve with single servo controller
US6263908B1 (en) Slow opening gas valve
US6705342B2 (en) Modulating gas valve with natural/LP gas conversion capability
CN211924897U (zh) 流体分配系统及减少其过量管道压力的组件、流体调节器
US20030102026A1 (en) Gas pressure regulator
EP2317224B1 (de) Multifunktionelle sicherheitsventilvorrichtung mit integriertem proportionalem druckregulierer
EP0669499B1 (de) Einrichtung zur Steuerung und Regelung des Gasdurchflusses zu einem Brenner einer Hausheizung
EP0783145B1 (de) Verbesserungen von oder bei Zählern
US6604538B2 (en) Adjustable fluid flow regulator with adjustment limit
HU177219B (en) Pressure regulator of medium in motion
WO2010091851A2 (en) Variable flow poppet valve
US4217928A (en) Gas regulator valve with step opening characteristic
ES8401267A1 (es) Regulador de presion.
EP0919897A2 (de) Vorgesteuerter Gasdruckregler mit ausgeglichener Hülse
JPH0127307B2 (de)
EP0989366A1 (de) Ventileinheit zur automatischen Regelung der Brenngasdurchflussmenge
GB2182418A (en) Solenoid valve
JPS6140874B2 (de)
RU2420685C2 (ru) Устройство для управления подачей горючего газа в горелку
GB2184520A (en) Gas valves
GB2067265A (en) Gas valves
JP2000346231A (ja) パイロット作動流量制御弁

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): DE FR GB IT NL

17P Request for examination filed

Effective date: 19950916

17Q First examination report despatched

Effective date: 19961230

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT NL

REF Corresponds to:

Ref document number: 69414366

Country of ref document: DE

Date of ref document: 19981210

ITF It: translation for a ep patent filed
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: FR

Ref legal event code: CJ

Ref country code: FR

Ref legal event code: CD

NLT1 Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1

Owner name: SIT LA PRECISA S.P.A.

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050908

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070921

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070914

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20070913

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20070914

Year of fee payment: 14

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080908

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090401

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20090401

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20090401

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20090529

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090401

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20070831

Year of fee payment: 14

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20090401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080908