EP0844440A2 - Gas distribution box to stove burners - Google Patents
Gas distribution box to stove burners Download PDFInfo
- Publication number
- EP0844440A2 EP0844440A2 EP97500021A EP97500021A EP0844440A2 EP 0844440 A2 EP0844440 A2 EP 0844440A2 EP 97500021 A EP97500021 A EP 97500021A EP 97500021 A EP97500021 A EP 97500021A EP 0844440 A2 EP0844440 A2 EP 0844440A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- valves
- distribution box
- gas distribution
- flow
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/122—Arrangement or mounting of control or safety devices on stoves
Definitions
- the present invention relates to the gas fuel distributor and the control elements to distribute gas to the top burners of a domestic stove from a common supply by means of various individual control knobs and outlets.
- GB-2102557 describes a gas distribution conduit to various stove burners with a channel shaped cross-section and made with two flat plates superposed and sealed together, with the taps for each burner screwed on externally. Said taps are complete articles operating separately themselves with their own gas inlet and outlet and individual clamps for fixing to the distribution conduit.
- the object of the invention is a gas distribution box to the top burners of a domestic stove that is provided with a common gas inlet and several individual outlets, and the individual elements for control of the gas are valves forming an inseparable part of said distribution box, each of their gas chambers being formed by the walls of said box, which is constructed with two pressed plates, the base plate and the cover plate.
- the gas distribution box which is the object of the invention has the advantage of reduced cost because the valves do not have a body of their own, but the base and the cover of the box form a common body for all valves, and the walls themselves of the cover and the base of the box form the plurality of sealed gas outlet chambers one for each burners. It also has the advantage of providing a single construction to the set of valves and distribution conduit without the need for a subsequent coupling between them. An added advantage is that the distribution box is an only type of universal-use, valid for any domestic cooking apparatus with top burners.
- the gas distribution box is constructed as a compact and indivisible block by means of said two pressed plates which are superposed and joined, the rear one the base and the front one the cover, forming a sealed gas conduit between them and, at the same time, the housing enclosure for the control valves. From the distribution box, only emerge the free ends of the rotary shafts operating the valves and both types of gas connectors, the common inlet and the individual outlets. Both parts of the box the base and the cover are drawn-in recesses for the adjusted fit of the valves between them which, in turn, form the surrounding body of the valve, shaping the sealed gas intake and outlet chambers of the valves which are isolated from each other, likewise forming the stops for the rotation of the valve shaft and its tubular guide support.
- the type of valve used is, for preference, an obturador disc type which rotary disc slips on a fixed seat disc secured to the box cover so that the relative rotation of each disc permits the flow of gas from the intake chamber common to all the valves, to the individual outlet chamber to the burner, through the passage slots in the obturator and seat discs.
- the operating shaft drives the rotatable obturator disc in cooperation with a cylindrical pusher coaxially coupled to the shaft.
- the minimum flow through each valve is regulated using a bypass screw which is connected externally to the distribution box. For different burners, the same distribution box is always used, just with the interchange of the bypass screw.
- FIG. 1 is a front view of the gas distribution box which is the object of the invention.
- FIG. 2 is a partial view of the back of the distribution box in figure 1.
- FIG. 3 is a transverse cross-section of the distribution box along III-III in figure 1.
- FIG. 4 is a partial lengthwise cross-section of the distribution box along IV-IV in figure 1.
- FIG. 5 is a view of the operating shaft for the valve and its locking pusher.
- the box 1 for distribution of gas to the burners of a domestic stove is constructed with a front cover 2 and a rear base 3 of pressed plate, both welded along their edges to form between them the common gas intake chamber 5 and the individual exit chambers 6 of each burner, as well as the individual housing bodies wherein the disc valves 8 for control are fitted, each provided with its operating shaft 9.
- the cover 2 has per valve the circular recess 2a drawn-in into the interior of the box 1 to form the tubular housing 2b of each shaft 9, and providing the support wall on which the seat disc 8 of the valve is secured making a sealed contact
- the base 3 of the box has the drawn-in housing 3a of uneven outline divided into two parts, as shown in figure 2, one is the partial drawn-in sector 16 in the form of a 160° circular sector, forming the housing 7 for the pusher 10 and the stops 18 and 18' for the rotation in both directions of control shaft 9, while the other section 17 of an arch shape encloses the chamber 6 for the individual output of gas, situated over the arched slot 11 of the seat disc 8 where the gas flow arrives in the direction of arrow 13 of figure 3, from the inlet connector 30, then leaving individually through the output connectors 31.
- the obturator disc 8b of the valve closes the gas output chamber 6 by means of a seal ring 14 against the base 3, while the seat disc 8a closes the intake chamber 5 using a seal ring 15 against the pressed section 2a of the cover.
- the enclosure formed between both pressed cover plate 2 and base plate 3 for housing the valves 8, is also the gas distribution conduit 5,6 of the box 1.
- the shaft 9 of the gas regulation knob turns through a maximum 160° angle from an initial gas flow closed setting, to take the four gas flow positions -off, medium, maximum and minimum- shown in figure 1 by settings a), b), c) and d) of the rotary disc 8b.
- its passage slot 12 is partially or totally superposed on the passage slot 11 of the seat disc 8a while, in minimum setting d) in figure 1, the moving slot 12 is superposed on the bypass orifice 19 which is coaxial with the minimum flow adjustment screw 20.
- the operating shaft has an axial coupling protrusion 22 on its inside end and a radial locking and drive tail 24, while the cylindrical pusher 10 has a coupling through orifice 21 into which the protrusion 22 on shaft 9 is inserted, and it has a radial fin 23 with a stepped surface matching the radial tail 24 cooperating to drive the disc 8b in its rotation.
- the central spring 25 housed in the pusher hole 21 returns the shaft 9 to its rest position when the user stops pushing against the knob, and the coupling spring 26 holds the pusher 10 pressed against the obturator disc 8b.
- the seat disc 8a and obturator disc 8b are made in this preferred embodiment of ceramic material to increase resistance to wear of the surfaces in contact.
- the seat disc 8a is fixed to the pressed section 2a of the cover by rivets 27 and has a stopped up notch 28, as shown in figure 4, where the tail 24 on the operating shaft fits partly, while the obturator disc 8b has a through notch 29 into which both the tail 24 on the shaft and the fin 23 on the pusher fit partly.
- the rotary disc 8b is placed behind the fixed seat disc 8a, i.e. away from the end of the shaft 9, which is why the rotary disc 8b is provided with the pusher 10.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The gas distribution box to the top burners of a stove
comprises a sealed gas distribution conduit (5, 6) in the form
of a channel formed between a base (3) and a cover (2)
superposed plates, inside which the means (8,9,18,18',20) for
controlling the individual flow to each burner are enclosed,
forming an element (1) which is compact and indivisible and
from which only the operating shafts (9) and a common gas inlet
and individual outlets connectors (30, 31) emerge. The means
for regulating the flow to each burner are a valve (8) with an
operating shaft (9), and a bypass screw (20). The valves (8)
comprises two superposed flat discs (8a,8b), one fixed and the
other rotary, fitted between the base (3) and the cover (2). A
pusher (10) cooperates with the operating shaft (9).
Description
The present invention relates to the gas fuel distributor
and the control elements to distribute gas to the top burners
of a domestic stove from a common supply by means of various
individual control knobs and outlets.
GB-2102557 describes a gas distribution conduit to various
stove burners with a channel shaped cross-section and made with
two flat plates superposed and sealed together, with the taps
for each burner screwed on externally. Said taps are complete
articles operating separately themselves with their own gas
inlet and outlet and individual clamps for fixing to the
distribution conduit.
The object of the invention is a gas distribution box to
the top burners of a domestic stove that is provided with a
common gas inlet and several individual outlets, and the
individual elements for control of the gas are valves forming
an inseparable part of said distribution box, each of their gas
chambers being formed by the walls of said box, which is
constructed with two pressed plates, the base plate and the
cover plate.
With respect to the known solution from the cited prior
art document which incorporates complete individual taps
connected to a common distributor conduit, the gas distribution
box which is the object of the invention has the advantage of
reduced cost because the valves do not have a body of their
own, but the base and the cover of the box form a common body
for all valves, and the walls themselves of the cover and the
base of the box form the plurality of sealed gas outlet
chambers one for each burners. It also has the advantage of
providing a single construction to the set of valves and
distribution conduit without the need for a subsequent coupling
between them. An added advantage is that the distribution box
is an only type of universal-use, valid for any domestic
cooking apparatus with top burners.
The gas distribution box is constructed as a compact and
indivisible block by means of said two pressed plates which are
superposed and joined, the rear one the base and the front one
the cover, forming a sealed gas conduit between them and, at
the same time, the housing enclosure for the control valves.
From the distribution box, only emerge the free ends of the
rotary shafts operating the valves and both types of gas
connectors, the common inlet and the individual outlets. Both
parts of the box the base and the cover are drawn-in recesses
for the adjusted fit of the valves between them which, in turn,
form the surrounding body of the valve, shaping the sealed gas
intake and outlet chambers of the valves which are isolated
from each other, likewise forming the stops for the rotation of
the valve shaft and its tubular guide support.
To reduce the thickness of the distribution box and for
achieving, by using seal rings, a sealed fit for the control
valves between the base and cover of the distribution box, the
type of valve used is, for preference, an obturador disc type
which rotary disc slips on a fixed seat disc secured to the box
cover so that the relative rotation of each disc permits the
flow of gas from the intake chamber common to all the valves,
to the individual outlet chamber to the burner, through the
passage slots in the obturator and seat discs.
The operating shaft drives the rotatable obturator disc in
cooperation with a cylindrical pusher coaxially coupled to the
shaft. The minimum flow through each valve is regulated using
a bypass screw which is connected externally to the distribution
box. For different burners, the same distribution box is
always used, just with the interchange of the bypass screw.
FIG. 1 is a front view of the gas distribution box which
is the object of the invention.
FIG. 2 is a partial view of the back of the distribution
box in figure 1.
FIG. 3 is a transverse cross-section of the distribution
box along III-III in figure 1.
FIG. 4 is a partial lengthwise cross-section of the
distribution box along IV-IV in figure 1.
FIG. 5 is a view of the operating shaft for the valve and
its locking pusher.
With reference to figures 1 - 5, the box 1 for
distribution of gas to the burners of a domestic stove is
constructed with a front cover 2 and a rear base 3 of pressed
plate, both welded along their edges to form between them the
common gas intake chamber 5 and the individual exit chambers 6
of each burner, as well as the individual housing bodies
wherein the disc valves 8 for control are fitted, each provided
with its operating shaft 9.
The cover 2 has per valve the circular recess 2a drawn-in
into the interior of the box 1 to form the tubular housing 2b
of each shaft 9, and providing the support wall on which the
seat disc 8 of the valve is secured making a sealed contact,
and the base 3 of the box has the drawn-in housing 3a of uneven
outline divided into two parts, as shown in figure 2, one is
the partial drawn-in sector 16 in the form of a 160° circular
sector, forming the housing 7 for the pusher 10 and the stops
18 and 18' for the rotation in both directions of control shaft
9, while the other section 17 of an arch shape encloses the
chamber 6 for the individual output of gas, situated over the
arched slot 11 of the seat disc 8 where the gas flow arrives in
the direction of arrow 13 of figure 3, from the inlet connector
30, then leaving individually through the output connectors 31.
The obturator disc 8b of the valve closes the gas output
chamber 6 by means of a seal ring 14 against the base 3, while
the seat disc 8a closes the intake chamber 5 using a seal ring
15 against the pressed section 2a of the cover. The enclosure
formed between both pressed cover plate 2 and base plate 3 for
housing the valves 8, is also the gas distribution conduit 5,6
of the box 1.
The shaft 9 of the gas regulation knob turns through a
maximum 160° angle from an initial gas flow closed setting, to
take the four gas flow positions -off, medium, maximum and
minimum- shown in figure 1 by settings a), b), c) and d) of the
rotary disc 8b. In the two intermediate positions b) and c) of
the blocking disc 8b, its passage slot 12 is partially or
totally superposed on the passage slot 11 of the seat disc 8a
while, in minimum setting d) in figure 1, the moving slot 12 is
superposed on the bypass orifice 19 which is coaxial with the
minimum flow adjustment screw 20.
As shown in figure 5, the operating shaft has an axial
coupling protrusion 22 on its inside end and a radial locking
and drive tail 24, while the cylindrical pusher 10 has a
coupling through orifice 21 into which the protrusion 22 on
shaft 9 is inserted, and it has a radial fin 23 with a stepped
surface matching the radial tail 24 cooperating to drive the
disc 8b in its rotation. The central spring 25 housed in the
pusher hole 21 returns the shaft 9 to its rest position when
the user stops pushing against the knob, and the coupling
spring 26 holds the pusher 10 pressed against the obturator
disc 8b.
The seat disc 8a and obturator disc 8b are made in this
preferred embodiment of ceramic material to increase resistance
to wear of the surfaces in contact. The seat disc 8a is fixed
to the pressed section 2a of the cover by rivets 27 and has a
stopped up notch 28, as shown in figure 4, where the tail 24 on
the operating shaft fits partly, while the obturator disc 8b
has a through notch 29 into which both the tail 24 on the shaft
and the fin 23 on the pusher fit partly. As a consequence of
the location of the adjustment screw 20 on the front, in the
cover, for easy user access, in this preferred embodiment of
the gas distribution box, the rotary disc 8b is placed behind
the fixed seat disc 8a, i.e. away from the end of the shaft 9,
which is why the rotary disc 8b is provided with the pusher 10.
Claims (3)
- Gas distribution box to the top burners of a domestic stove, having a sealed gas flow conduit (5,6), individual control means (8,9,18,18',20) for the flow (13) of gas to each burner, a common inlet connector 30) and gas chamber (5) and a individual gas outlet chamber (6) and connector (31) to each burner, the control means (8,9,18,18',20) including for each burner a rotary valve (8) with an operating shaft (9) and two stops (18,18') for limiting the rotation angle of the shaft (9), and a bypass screw (20) for a minimum flow, characterized in that the distribution box (1) encloses the gas valves (8) in the interior of the flow conduit (5,6), forming one compact and indivisible controlled gas distribution element for all the burners.
- The gas distribution box recited in claim 1, wherein the box (1) forming the sealed flow gas conduit (5,6) and the enclosure (2,3) housing the valves (8) is constructed with two pressed plates (2, 3) which are a rear base (3) which houses the valves (8), forms the outlet gas chambers (6) and the stops (18,18') for the shaft rotation, and a front cover (2) which guides the valve shafts (8) and supports frontally the bypass adjustment screw (20), both pressed plates (2,3) forming a common body of all valves (8).
- The gas distribution box recited in claim 1, wherein the control valves (8) comprise a seat disc (8a) fixed to the cover plate (2) and a superposed rotary disc (8b), both discs (8a,8b) incorporating gas passage slots (11,12), being the rotary disc (8a) drived by the operating shaft (9) in cooperation with a coaxial pusher (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9602011A ES2145656B1 (en) | 1996-09-23 | 1996-09-23 | GAS DISTRIBUTION BOX TO BURNERS OF A KITCHEN. |
| ES9602011 | 1996-09-23 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0844440A2 true EP0844440A2 (en) | 1998-05-27 |
| EP0844440A3 EP0844440A3 (en) | 2000-05-10 |
| EP0844440B1 EP0844440B1 (en) | 2002-08-28 |
Family
ID=8296121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19970500021 Expired - Lifetime EP0844440B1 (en) | 1996-09-23 | 1997-01-24 | Gas distribution box to stove burners |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0844440B1 (en) |
| DE (1) | DE69714952T2 (en) |
| ES (1) | ES2145656B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742684A (en) * | 2013-12-25 | 2014-04-23 | 卢致英 | Improved spring type cassette valve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2102557A (en) | 1981-06-19 | 1983-02-02 | Tortube Ltd | Gas rail |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1775980A (en) * | 1927-07-13 | 1930-09-16 | Earl G Walbridge | Stove |
| ES1008267Y (en) * | 1988-11-22 | 1991-02-16 | Isphording Hispania, S.A. | PERFECTED RAMP, FOR GAS FAUCETS. |
| GB2258909B (en) * | 1991-08-22 | 1994-09-28 | New World Domestic Appliances | Gaseous fuel flow control arrangements |
| US5464005A (en) * | 1993-04-30 | 1995-11-07 | Mizrahi; Zadok | Stove |
-
1996
- 1996-09-23 ES ES9602011A patent/ES2145656B1/en not_active Expired - Fee Related
-
1997
- 1997-01-24 DE DE1997614952 patent/DE69714952T2/en not_active Expired - Lifetime
- 1997-01-24 EP EP19970500021 patent/EP0844440B1/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2102557A (en) | 1981-06-19 | 1983-02-02 | Tortube Ltd | Gas rail |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742684A (en) * | 2013-12-25 | 2014-04-23 | 卢致英 | Improved spring type cassette valve |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2145656A1 (en) | 2000-07-01 |
| DE69714952T2 (en) | 2003-04-03 |
| ES2145656B1 (en) | 2001-01-01 |
| EP0844440A3 (en) | 2000-05-10 |
| DE69714952D1 (en) | 2002-10-02 |
| EP0844440B1 (en) | 2002-08-28 |
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