WO2010026058A1 - Robinet de gaz - Google Patents

Robinet de gaz Download PDF

Info

Publication number
WO2010026058A1
WO2010026058A1 PCT/EP2009/060791 EP2009060791W WO2010026058A1 WO 2010026058 A1 WO2010026058 A1 WO 2010026058A1 EP 2009060791 W EP2009060791 W EP 2009060791W WO 2010026058 A1 WO2010026058 A1 WO 2010026058A1
Authority
WO
WIPO (PCT)
Prior art keywords
plug
gas
chick
gas valve
elastic material
Prior art date
Application number
PCT/EP2009/060791
Other languages
German (de)
English (en)
Inventor
Christophe Cadeau
Erich-Olaf Fischer
Stéphane CLAUSS
Alexander Eisenberg
Jörn Naumann
Original Assignee
BSH Bosch und Siemens Hausgeräte GmbH
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 BSH Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Priority to CN2009801343824A priority Critical patent/CN102144117A/zh
Publication of WO2010026058A1 publication Critical patent/WO2010026058A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
    • F16K5/025—Particular coverings or materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/005—Particular materials for seats or closure elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/007—Regulating fuel supply using mechanical 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
    • F23N2235/16—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
    • F23N2235/24—Valve details

Definitions

  • the invention relates to a gas valve for a gas-powered cooking appliance.
  • Such cooking appliances can be designed, for example, as gas stoves, gas hobs or as gas ovens.
  • the heat source used in these cooking appliances is a gas flame burning at a gas burner.
  • the fuel used is a suitable fuel gas, such as natural gas, city gas or LPG (propane and / or butane gas).
  • the performance of the gas burner is controlled by an operator of the cooking appliance by means of the gas valve.
  • the gas valve has a variable opening cross-section, which is adjustable by the operator by actuating the gas valve.
  • the gas valve is designed as a plug valve.
  • a plug valve has a metallic valve body into which a plug receiving opening is incorporated.
  • the chick receiving opening is usually designed as a conical or cylindrical bore.
  • a correspondingly shaped plug is inserted into the plug receiving opening and is rotatable relative to the valve body.
  • at least one gas passage opening is incorporated, which connects a hollow interior of the plug with an outer surface of the plug.
  • the valve body has a corresponding outlet channel, which leads from an inner circumferential surface of the plug receiving opening to a gas outlet, to which a gas line leading to the burner is connected.
  • the gas passage opening and the outlet channel overlap completely, partially or not at all.
  • the opening cross section of the gas valve results from the degree of overlap of the gas passage opening and the outlet channel.
  • the valve body and the plug are usually made of metal, such as aluminum or brass.
  • Lubricant is usually used in grease.
  • a disadvantage of this arrangement is that the grease partially settles in the gas passage opening and in the outlet channel, thereby closing a part of the opening cross-section. This leads for example to a hysteresis effect when opening and closing the gas valve and also prevents a reproducibility of a specific burner output by turning the plug into a specific angular position.
  • the valve body is made entirely of metal, while the chick has a metallic core and the surface of the plug is coated with plastic, for example with synthetic resin. To reduce friction, particles of graphite are incorporated in the plastic.
  • plastic for example with synthetic resin.
  • particles of graphite are incorporated in the plastic.
  • the present invention is therefore an object of the invention to provide an easy to produce gas valve with a long service life, which is precisely adjustable with the gas supplied to the gas burner amount.
  • the rubber-elastic material is formed by a self-lubricating silicone.
  • a self-lubricating silicone is a silicone-based plastic. That to reduce the friction between chicks and
  • Chick receiving opening provided lubricant is contained in the silicone and does not have to be applied from the outside.
  • the lubricant is already introduced into the silicone during the polymerization of the silicone.
  • self-lubricating silicone can be completely dispensed with additional, externally applied lubricant.
  • an oil is provided as a lubricant.
  • the oil used as a lubricant is in contrast to fat at Ambient temperature liquid.
  • the oil accumulates in contrast to fat not in the gas passage opening or in the outlet channel. A narrowing of the flow cross section through the oil is thus excluded.
  • the lubricant oil can be applied during the assembly of the plug in the chick receiving opening. It is also possible to relubricate the chick already mounted in the chick receiving opening, for example in the course of maintenance work.
  • the oil may be included as a lubricant in the silicone.
  • the chick is at least in a partial area from the outer surface to a hollow interior facing inner surface made entirely of the rubber-elastic material.
  • the rubber-elastic material is designed here as a solid material. At least in a portion of the rubber-elastic material forms the chick per se, and not only its surface.
  • the gas passage opening is preferably located in this portion and is completely formed in the rubber-elastic material. Thus, the gas passage opening can already be made during the primary molding of the rubber-elastic material. A mechanical post-processing of the rubber-elastic material is not required. For the preparation of the gas passage opening and no mechanical fine machining of a metallic part of the plug is required.
  • a silicone is provided as rubber-elastic material.
  • Silicone as a material is characterized by a high abrasion resistance and a good aging resistance.
  • the shape of the chick can be made so precisely with the prototyping of the silicone, that the chick closes the chick seat tightly, so that leakage of gas into the environment is reliably prevented.
  • an oil provided for lubricating the plug with respect to the valve body is completely contained in the self-lubricating silicone. In this case, no additional oil for lubricating the plug from the outside must be introduced into the gas valve.
  • the plug has at least one gas passage opening which connects the outer surface of the plug with a hollow interior of the plug, and the outer surface is at least in the region of the gas passage opening of the rubber-elastic material educated.
  • the gas flows with the gas valve open from the interior of the plug via the gas passage opening in the plug to an outlet channel in the valve housing.
  • the plug is in a position in which the gas passage opening is closed by the valve housing.
  • the rubber-elastic material forms the outer surface of the plug.
  • the plug has a plurality of gas passage openings which connect the outer surface of the plug with a hollow interior of the plug, and the outer surface is formed in the region of the gas passage openings of the rubber-elastic material.
  • the plurality of gas passage openings allow a stepwise adjustment of the opening cross section of the gas valve.
  • Each of the plurality of gas passage openings has a relatively small cross section, which is smaller than the cross section of the gas passage opening of a chick with a single gas passage opening. Accumulation of grease in the small gas passages affects the operation of one gas valve with a multiple chick
  • Gas passage openings particularly strong. When using oil as a lubricant or when using a self-lubricating silicone, the lubricant does not affect the operation of the gas valve.
  • a gas valve with a plurality of gas passage openings is described for example in the post-published patent application with the application file PCT / EP2008 / 058605.
  • the plug has at least one gas passage opening, which connects the outer surface of the plug with a hollow interior of the plug and is connected in the region of the outer surface of the plug with a channel, which is designed as a recess of the outer surface of the plug.
  • a gas valve is described in the post-published patent application claiming priority EP07360051.2.
  • the channel begins at the gas passage opening and extends as a depression along the surface of the plug.
  • the channel serves to increase the rotational angle range of the plug, in which a gas passage through the gas valve is made possible.
  • the flow resistance for the gas can be finely adjusted.
  • An accumulation of grease in the channel particularly affects the operation of such a gas valve. When using oil as a lubricant or when using a self-lubricating silicone, the lubricant does not affect the operation of the gas valve.
  • the channel extends at least over a quarter of the circumference of the plug.
  • the operator can thus continuously adjust the power of the gas burner over a rotation angle range of more than 90 degrees.
  • the chick in the region of the at least one gas passage opening on a metallic core, on which the outer surface of rubber-elastic material is applied.
  • the metallic core forms the bearing component of the plug and serves for torque transmission.
  • the rubber-elastic material is applied to the core and may have a thickness of between a few tenths of a millimeter to a few millimeters.
  • the chick may in this case have a metallic axis, which forms a common component with the metallic core.
  • the axle protrudes from the chick receiving opening.
  • the axle may be directly or indirectly connected to a knob with which an operator turns the chick.
  • the axis can be made in one piece or in several parts. In the case of a multi-part design, the parts of the axle may be movable in the axial direction relative to each other.
  • the chick has a completely made of rubber-elastic material area is located in this area no metallic core.
  • the chick has here a metallic axis, which adjoins in the axial direction of the completely made of rubber-elastic material area.
  • the completely made of rubber-elastic material area and the metallic axis are rotatably connected.
  • the chick may have a conical shape or a cylindrical shape.
  • FIG. 1 shows a first embodiment of a gas valve according to the invention
  • FIG. 2 shows a plug of the gas valve according to FIG. 1
  • Figure 3 shows a second embodiment of a gas valve according to the invention
  • Figure 4 is a gas valve with a chick with metallic core and a
  • Figure 5 shows a chick, which is made entirely of rubber-elastic material in a large area.
  • FIG. 1 shows a gas valve 10 in a side view.
  • the gas valve 10 is provided for providing a gas flow for a gas burner of a gas hob or a gas oven.
  • the gas valve 10 has a valve body 12, which is cuboid in the present embodiment and in which
  • Outlet channels 14 are arranged for the passage of gas.
  • Formed on the valve body 12 are an inlet opening 16 for the flow of gas into the gas valve 10 and a gas outlet 18 for the outflow of gas to the gas burner.
  • a guide member 22 is arranged, which receives an adjustment (not shown) for manually adjusting a gas flow.
  • the gas valve 10 further has a cone-shaped chick 24 in the present example.
  • the chick 24 is rotatably supported relative to the valve body 12 in a chick receiving opening. It is also sleeve-shaped and has a hollow interior 26. Gas can flow from the inlet opening 16 via the hollow interior and via the outlet channels 14 to the gas outlet 18.
  • the chick 24 is provided with one or more gas passage openings (see FIG. 2 or 3), which permit a stepless or stepwise adjustment of the gas flow rate by means of a rotary movement of the chick 24.
  • FIG. 2 shows the chick 24 in a perspective view.
  • the various gas passage openings 50, 52, 54 of the plug 24 connect the hollow interior 26 of the plug 24 with an outer surface of the plug.
  • the gas passage openings 52 correspond to the outlet channels 14, given the corresponding position of the plug 24.
  • FIG. 3 shows a second embodiment of the gas valve 110, which essentially has a valve body 112 and a plug 124.
  • a chick receiving opening 102 is formed, which has the smoothest possible inner wall.
  • an outlet channel 114 leads from the chick receiving opening 102 to a gas outlet, not shown, in order to be able to conduct gas thereon.
  • channel 106 formed in the outer surface of the plug 124.
  • the channel 106 thereby leads only a limited depth into the wall material of the plug 124 and does not extend to the hollow interior 126.
  • At one end of the channel 106 is connected to a gas passage opening 105 so that gas from the gas passage opening 105 into the channel 106 can flow.
  • the chick 124 is rotatable about a rotation axis z as a rotation axis of the chick receiving opening 2 in a predetermined rotation angle range about the rotation axis z.
  • the channel 106 is in a height range of the outer surface of the plug 124, which is covered in dependence on the angular position of the plug 124 of the outlet channel 1 14 in the valve body 101.
  • FIG. 4 shows a further aspect of the invention, which can likewise be used for both embodiments according to FIGS. 1 and 2 as well as according to FIG.
  • an outer surface 80 of the plug 24, 124 is formed by a self-lubricating silicone.
  • the silicone contains oil as a lubricant.
  • the outer surface 80 of self-lubricating silicone is applied in the example of FIG. 4 on a metallic core 82 and fixedly connected thereto.
  • the core 82 merges into a metallic axis 83, at which the chick 24, 124 can be rotated.
  • FIG. This design can also be used for both embodiments according to FIGS. 1 and 2 as well as according to FIG.
  • the chick 24, 124 is executed here in a large portion of completely rubber-elastic material.
  • the rubber-elastic material extends from the hollow interior 26 to the outer surface 80.
  • a metallic axis 83 is fixedly connected to the rubber-elastic material at the upper end in the drawing.
  • a rubber-elastic material is for example silicone into consideration, preferably also in an embodiment as a self-lubricating silicone.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Taps Or Cocks (AREA)
  • Lift Valve (AREA)

Abstract

L'invention a pour objet un robinet de gaz (10, 110) pour un appareil de cuisson fonctionnant au gaz, comprenant un corps de robinet (12, 112) présentant une ouverture réceptrice d'une noix de robinet. Une noix de robinet (24, 124) est montée rotative dans ladite ouverture réceptrice de noix de robinet, et présente une surface extérieure (80) qui est fabriquée, au moins partiellement, en un matériau élastique de type caoutchouc. L'invention est caractérisée en ce que le matériau élastique de type caoutchouc est formé d'une silicone autolubrifiante. La noix de robinet (24, 124) peut être fabriquée, au moins dans une zone partielle, de la surface extérieure (80) jusqu'à une surface intérieure tournée vers un espace intérieur creux (26), en totalité par le matériau élastique de type caoutchouc.
PCT/EP2009/060791 2008-09-03 2009-08-20 Robinet de gaz WO2010026058A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009801343824A CN102144117A (zh) 2008-09-03 2009-08-20 煤气阀

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08360025.4 2008-09-03
EP08360025 2008-09-03

Publications (1)

Publication Number Publication Date
WO2010026058A1 true WO2010026058A1 (fr) 2010-03-11

Family

ID=41181083

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/060791 WO2010026058A1 (fr) 2008-09-03 2009-08-20 Robinet de gaz

Country Status (2)

Country Link
CN (1) CN102144117A (fr)
WO (1) WO2010026058A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2837885A3 (fr) * 2013-08-12 2015-02-25 Turas Gaz Armatürleri Sanayi. Ve Ticaret A.S. Robinet de gaz
EP3719399A1 (fr) 2019-04-02 2020-10-07 BSH Hausgeräte GmbH Soupape à gaz et cuisinière à gaz

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108603607A (zh) * 2015-12-23 2018-09-28 Spx流动有限公司 具有柔性端口的液压连接及其连接方法
CN111322430A (zh) * 2018-12-17 2020-06-23 宁波方太厨具有限公司 燃气调节阀阀芯结构

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT134556B (de) * 1932-09-03 1933-08-25 Max Dr Ing Casutt Regelhahn für Gase und Flüssigkeiten.
GB755536A (en) * 1954-01-04 1956-08-22 Wm Whitehouse & Company Ltd Improvements relating to cocks, taps and valves for controlling the flow of fluids
DE1229356B (de) * 1962-03-30 1966-11-24 Rheinisches Metallwerk Gmbh Absperrhahn mit anlueftbarem Kueken
DE1909890A1 (de) * 1968-02-28 1969-10-02 Gas Council Steuerhahn fuer Gasbrenner,insbesondere fuer Kochherd-Brenner
US3884413A (en) * 1974-03-14 1975-05-20 Harper Wyman Co Oven control
US4003403A (en) * 1974-06-10 1977-01-18 International Paper Company Stopcock
US4197876A (en) * 1978-08-30 1980-04-15 Cobe Laboratories, Inc. Fluid valve
JPS55159369A (en) * 1979-05-30 1980-12-11 Tokyo Gas Co Ltd Machining operation of at sliding surface of cock
EP1095973A1 (fr) * 1999-10-25 2001-05-02 Honeywell B.V. Composition de gomme pour soupapes de gaz

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT134556B (de) * 1932-09-03 1933-08-25 Max Dr Ing Casutt Regelhahn für Gase und Flüssigkeiten.
GB755536A (en) * 1954-01-04 1956-08-22 Wm Whitehouse & Company Ltd Improvements relating to cocks, taps and valves for controlling the flow of fluids
DE1229356B (de) * 1962-03-30 1966-11-24 Rheinisches Metallwerk Gmbh Absperrhahn mit anlueftbarem Kueken
DE1909890A1 (de) * 1968-02-28 1969-10-02 Gas Council Steuerhahn fuer Gasbrenner,insbesondere fuer Kochherd-Brenner
US3884413A (en) * 1974-03-14 1975-05-20 Harper Wyman Co Oven control
US4003403A (en) * 1974-06-10 1977-01-18 International Paper Company Stopcock
US4197876A (en) * 1978-08-30 1980-04-15 Cobe Laboratories, Inc. Fluid valve
JPS55159369A (en) * 1979-05-30 1980-12-11 Tokyo Gas Co Ltd Machining operation of at sliding surface of cock
EP1095973A1 (fr) * 1999-10-25 2001-05-02 Honeywell B.V. Composition de gomme pour soupapes de gaz

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DOW CORNING: "Silastic Fluorsiliconkautschuk. Auswahl-Leitfaden (Broschüre Nr. 17-1100A-03)", INTERNET CITATION, 1 January 2000 (2000-01-01), XP007910343, Retrieved from the Internet <URL:http://www.dowcorning.de/content/publishedlit/17-1100B-01.pdf> [retrieved on 20091023] *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2837885A3 (fr) * 2013-08-12 2015-02-25 Turas Gaz Armatürleri Sanayi. Ve Ticaret A.S. Robinet de gaz
EP3719399A1 (fr) 2019-04-02 2020-10-07 BSH Hausgeräte GmbH Soupape à gaz et cuisinière à gaz
WO2020200917A1 (fr) 2019-04-02 2020-10-08 BSH Hausgeräte GmbH Soupape de gaz et cuisinière à gaz

Also Published As

Publication number Publication date
CN102144117A (zh) 2011-08-03

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