EP1058059A2 - Gasventil - Google Patents

Gasventil Download PDF

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Publication number
EP1058059A2
EP1058059A2 EP00830151A EP00830151A EP1058059A2 EP 1058059 A2 EP1058059 A2 EP 1058059A2 EP 00830151 A EP00830151 A EP 00830151A EP 00830151 A EP00830151 A EP 00830151A EP 1058059 A2 EP1058059 A2 EP 1058059A2
Authority
EP
European Patent Office
Prior art keywords
shutter
valve
tap
gas
burner
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
EP00830151A
Other languages
English (en)
French (fr)
Other versions
EP1058059B1 (de
EP1058059A3 (de
Inventor
Sebastiano Saleri
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.)
Siral SpA
Original Assignee
Siral 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 Siral SpA filed Critical Siral SpA
Publication of EP1058059A2 publication Critical patent/EP1058059A2/de
Publication of EP1058059A3 publication Critical patent/EP1058059A3/de
Application granted granted Critical
Publication of EP1058059B1 publication Critical patent/EP1058059B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F23N5/107—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples using mechanical means, e.g. safety valves

Definitions

  • This invention concerns taps for gas burners, particularly those taps of the globe valve variety.
  • the gas taps usually include a command stem which can move axially to open and close the tap and rotate to open and vary the gas output.
  • the globe valves also include a safety valve which can intervene and block automatically the supply of gas to the burner, should the flame go out while the tap is open.
  • the safety valve is of the magnetic type and consists of a shutter that can move from an open to a closed position in the passage carrying the gas to the burner when the tap is open.
  • Said safety valve in reality, also includes an electromagnet in line with the shutter and energised by the thermocurrent of a thermocouple, according to the flame of the burner.
  • the tap stem pushes the safety shutter into an open position. Then the stem retracts and, to keep the flame alight, the electromagnet is energised and holds the safety shutter open.
  • the electromagnet is deactivated following the accidental extinction of the flame, said shutter is released and moves into the position which closes the passage of the gas to the burner, assisted by a compressed spring.
  • the safety valve is placed at 90° to the axis of the tap stem itself, which means using mechanical transmission between the stem and the safety shutter of the valve to control the interaction between the two elements at the moment of opening the tap.
  • such mechanical means of transmission include levers and thrusters which are rather complicated and awkward to mount on the tap body.
  • This body therefore, becomes a complex structure which is difficult to work with machine tools at the moment of its assembly.
  • a globe valve for gas which includes, as transmission means between the command stem and the shutter of the safety valve, elements that are particularly simple and linear in structure, execution and positioning and which also simplify the structure and the working which needs to be done on the tap body, making it easier to get to the seats in which said elements are mounted.
  • the gas tap consists of a body 11 with conduits 12 for the gas flowing from an entrance 13 via an exit 14 towards the burner, a tap shutter 15 to open and close said conduits in a zone mid-way between the entrance and the exit, and a stem 16 movable axially and in rotation in order to open and close the shutter and regulate the gas flow towards the burner.
  • the tap also includes a safety valve 17 placed in an appropriate seat 18, closed by a cap 18', situated on an axis at right angles to the command stem 16.
  • the safety valve essentially consists of a fixed electromagnet 19 and a safety shutter 20, the latter capable of moving towards and away from a hole or seat for the valve 21, placed along the gas conduit inside the tap body.
  • the electromagnet 19 can be connected to a thermocouple - not shown - which is located next to the burner; the safety shutter 20 is held in the open position of the valve seat 21 of the electromagnet when the latter is energised, and moves and remains in the closed position of the valve seat, aided by a spring - not shown - when the electromagnet is not activated.
  • the safety shutter 20 when the tap is opened by the stem in order to light the burner flame, the safety shutter 20 must be opened by moving it towards the electromagnet.
  • two substantially linear transmission elements are mounted in the tap body 11: a first element 22 in line with the safety shutter 20 and passing, at least partially, through the valve seat - Fig. 4; a second element 23, placed perpendicularly to the first element and extending from this towards the axis of the command stem 16, perpendicular to this, too, but placed to the side of it Fig. 6.
  • the first element is guided and capable of axial transfer towards and away from the safety valve 20.
  • the second element 23 is supported on end pins 24 and capable of rotating around its own axis, without transfer.
  • Both transmission elements 22, 23 have grooves or longitudinal passages 22a, 23a, respectively, for carrying the gas from the entrance to the exit leading to the burner.
  • the second element 23, in its first part adjacent to the axis of the command stem, has at least one radial tooth 23' which fits into a complementary hollow or groove 25', foreseen around pull rod 25 connected to the command stem 16, of which it represents a prolongation and passing axially into the tap shutter 15 - Fig. 5. Furthermore, said second element 23, in the second part which is adjacent to the first element 22, has at least one other radial tooth 23" which fits into a complementary hollow or groove 22' made in said first element 22 - Fig. 4. In this way, the axial movement of the command stem 16 corresponds, via the pull rod 25, to a rotation of the second transmission element 23 and, via this, to an axial transfer of the first transmission element 22.
  • a subsequent forward axial movement by the stem causes, via the pull rod 25, a rotation of the second transmission element 23 which causes in turn an axial movement of the first element 22 towards the safety shutter 20 and thereby moving this in the direction away from the respective valve seat 21.
  • the shutter can be rotated so as to allow the gas to flow to the burner and the flame to be lit; in the presence of the heat from the flame, the thermocouple excites the electromagnet and the latter holds the safety valve in the open position, even when the safety stem retracts after the push forwards and is rotated in order to regulate the gas outflow. This is the situation while the burner is alight. If for some reason the burner goes out while the tap is still open, the electromagnet is deactivated and the safety shutter 20 closes over the hole or seat of the valve, automatically interrupting the gas supply.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Taps Or Cocks (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Lift Valve (AREA)
  • Physical Vapour Deposition (AREA)
EP20000830151 1999-06-02 2000-02-29 Gasventil Expired - Lifetime EP1058059B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBS990047U 1999-06-02
IT1999BS000047 IT247344Y1 (it) 1999-06-02 1999-06-02 Rubinetto per gas valvolato.

Publications (3)

Publication Number Publication Date
EP1058059A2 true EP1058059A2 (de) 2000-12-06
EP1058059A3 EP1058059A3 (de) 2002-02-13
EP1058059B1 EP1058059B1 (de) 2005-04-27

Family

ID=11346355

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000830151 Expired - Lifetime EP1058059B1 (de) 1999-06-02 2000-02-29 Gasventil

Country Status (3)

Country Link
EP (1) EP1058059B1 (de)
ES (1) ES2240044T3 (de)
IT (1) IT247344Y1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2823548A1 (fr) * 2001-04-13 2002-10-18 Sourdillon Sa Robinet de securite, notamment pour le gaz d'une plaque de cuisson et procede de montage associe
EP1777456A3 (de) * 2005-10-21 2008-06-11 Turas Gas Armatures R&D Y-Typgashahn für Gasofen oder Kochherde mit Sicherheitssystem zur Brennstoffunterbrechung
WO2012080054A3 (de) * 2010-12-14 2013-10-17 BSH Bosch und Siemens Hausgeräte GmbH Gasventileinheit mit einem hubumlenkungssystem

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0486796A1 (de) * 1990-11-19 1992-05-27 IMIT S.p.A. Gashahn mit modularer Sicherheitseinrichtung
GB2261495A (en) * 1991-11-13 1993-05-19 Fagor S Coop Ltda Gas flow control valve assembly
DE4441926A1 (de) * 1993-11-24 1995-06-01 Sourdillon Sa Gashahn mit Sicherheitsventil, insbesondere für Haushaltsgeräte des Typs mit Platten

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0486796A1 (de) * 1990-11-19 1992-05-27 IMIT S.p.A. Gashahn mit modularer Sicherheitseinrichtung
GB2261495A (en) * 1991-11-13 1993-05-19 Fagor S Coop Ltda Gas flow control valve assembly
DE4441926A1 (de) * 1993-11-24 1995-06-01 Sourdillon Sa Gashahn mit Sicherheitsventil, insbesondere für Haushaltsgeräte des Typs mit Platten

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2823548A1 (fr) * 2001-04-13 2002-10-18 Sourdillon Sa Robinet de securite, notamment pour le gaz d'une plaque de cuisson et procede de montage associe
WO2002084180A1 (fr) * 2001-04-13 2002-10-24 Burner Systems International (Bsi) Robinet de securite, notamment pour le gaz d'une plaque de cuisson et procede de montage associe
US6957657B2 (en) 2001-04-13 2005-10-25 Burner Systems International (Bsi) Safety valve, in particular for cooking plate gas and related mounting method
EP1777456A3 (de) * 2005-10-21 2008-06-11 Turas Gas Armatures R&D Y-Typgashahn für Gasofen oder Kochherde mit Sicherheitssystem zur Brennstoffunterbrechung
WO2012080054A3 (de) * 2010-12-14 2013-10-17 BSH Bosch und Siemens Hausgeräte GmbH Gasventileinheit mit einem hubumlenkungssystem
RU2546345C2 (ru) * 2010-12-14 2015-04-10 Бсх Бош Унд Сименс Хаусгерете Гмбх Газовый клапан с системой преобразования направления хода
US9206982B2 (en) 2010-12-14 2015-12-08 Bsh Hausgeraete Gmbh Gas valve unit comprising a lift deflection system

Also Published As

Publication number Publication date
EP1058059B1 (de) 2005-04-27
ITBS990047U1 (it) 2000-12-02
EP1058059A3 (de) 2002-02-13
ITBS990047V0 (it) 1999-06-02
ES2240044T3 (es) 2005-10-16
IT247344Y1 (it) 2002-07-09

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