CA2371188A1 - A device for gas burners - Google Patents
A device for gas burners Download PDFInfo
- Publication number
- CA2371188A1 CA2371188A1 CA002371188A CA2371188A CA2371188A1 CA 2371188 A1 CA2371188 A1 CA 2371188A1 CA 002371188 A CA002371188 A CA 002371188A CA 2371188 A CA2371188 A CA 2371188A CA 2371188 A1 CA2371188 A1 CA 2371188A1
- Authority
- CA
- Canada
- Prior art keywords
- air
- blocking means
- air nozzles
- nozzles
- assigned
- 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.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details
- F23D14/60—Devices for simultaneous control of gas and combustion air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details
- F23D14/62—Mixing devices; Mixing tubes
- F23D14/64—Mixing devices; Mixing tubes with injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
- F23N1/027—Regulating fuel supply conjointly with air supply using mechanical means
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7847—With leak passage
- Y10T137/7849—Bypass in valve casing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87571—Multiple inlet with single outlet
- Y10T137/87587—Combining by aspiration
- Y10T137/87643—With condition responsive valve
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention relates to a device for gas burners, comprising at least two a ir nozzles (10, 11) for combustion air. Said air nozzles (10, 11) are connected in parallel. According to the invention, a blocking device (15) is allocated to one or more of the air nozzles (10, 11), respectively. Each of these blocking devices (15) can be used to selectively shut off the flow of air through the corresponding air nozzles (10, 11). This increases the range of modulation of the inventive device.
Description
Honeywell B.V.
A Device for Gas Burners The invention relates to a device for gas burners comprising a plurality of air nozzles for combustion air according to the preamble of claim 1.
A device according to the prior art is known from the DE
Utility Model 298 O1 429. In the device shown there, combustion air is moved through air nozzles arranged in parallel, with the minimum capacity and, thus, the lower modulation range of the device being determined by the sum of the minimum capacities of all air nozzles arranged in parallel. This lower modulation range restricts the range of application of such devices according to the prior art.
Further devices according to the prior art are known from the JP 57-188917A, the JP 57-31716A, the DE 197 28 965 A1 and the FR 758 974.
Proceeding therefrom, the present invention is based on the problem of creating a device for gas burners which comprises a plurality of air nozzles for combustion air and has a larger modulation range and, thus, a greater range of application.
This problem is solved by a device comprising the features of claim 1.
Further advantageous embodiments of the invention result from the subclaims and the description. In the following, preferred embodiments of the invention will be explained in greater detail by means of the drawing. In the drawing Fig. 1 shows a schematic sectional representation of an inventive device according to a first embodiment of the invention; and Fig. 2 shows a modulation diagram for an inventive device according to a second embodiment of the invention.
Figure 1 shows a first embodiment of a device according to the invention, the device comprising two air nozzles 10, 11 and a gas nozzle 12, with the flow of gas flowing through the gas nozzle 12 being mixed with the flows of combustion air flowing through the air nozzles 10, 11 and leaving the device according to the invention through a mixture outlet 13 in the direction of a gas burner of which the flames 14 are shown.
The two air nozzles 10, 11 of the embodiment according to figure 1 are, on the one hand, formed as Venturi nozzles and, on the other hand, connected with each other in parallel. In a device of that kind according to the prior art, this would mean that the minimum capacity of the device and its lower modulation range, respectively, is determined by the sum of the minimum capacities of the two air nozzles 10, 11.
In order to further decrease the minimum capacity and, thus, the lower modulation range of the device, a blocking means 15 is assigned to the air nozzle 11 in the embodiment shown in figure 1; this blocking means 15 is capable of shutting off the air flow through the air nozzle 11. Thus, when the air flow through the air nozzle 11 is shut off, combustion air is moved only through the air nozzle 10 and, consequently, the lower modulation range of the device according to the invention is shifted towards the minimum capacity of the air nozzle 10.
In the embodiment represented in figure l, the blocking means 15 is formed as a flap 16 having a spring member 17 assigned thereto. The strength of the elastic force of the spring member 17 as well as the design or construction of the flap 16 determines the blocking characteristic of the blocking means 15. This means, if the air flow through the air nozzle 10 falls below a certain value, the force exerted by this air flow on the flap 16 does no longer suffice to hold the flap 16 open against the elastic force of the spring member 17. Then, the flap 16, i.e. the blocking means 15, is closed.
In this connection, it is also of importance that the air nozzle 11 to which the blocking means is assigned is also assigned a bypass 18. This bypass 18 extends from an inlet side 19 to an outlet side 20 of the blocking means 15. By the bypass 18, it is guaranteed that even when the blocking means 15 is closed, a reduced flow of combustion air is moved from the air nozzle 11 in the direction of the burner which is not represented in detail. In this way, when the blocking means 15 is closed, gas is prevented from emerging through the air nozzle 11 as a result of a pressure difference.
In the embodiment represented in figure 1, the air nozzles 10, 11 differ with respect to their characteristic curve.
The air nozzle 10 has a smaller capacity than the air nozzle 11 and, thus, a minimum capacity.
In the embodiment represented in figure 1, both air nozzles 10, 11 are supplied with gas via a gas nozzle 12. Deviating from this embodiment as shown, it is also possible to assign a separate gas nozzle to each air nozzle 10, 11. In this case, when the blocking means 15 of the air nozzle 11 is closed, also the gas nozzle assigned to this air nozzle 11 has to be closed. This means, an additional blocking means would then be required.
In the embodiment shown in figure 1, the closing of the blocking means 15 depends on the flow of air through the air nozzle 11. This could be called a combustion air modulation. Instead of this, also an actuator which closes the blocking means 15 could be used. Such an actuator could, for instance, open or close the blocking means 15 in dependence on certain load levels.
It goes without saying that the principle described in figure 1 can be extended to devices comprising an arbitrary number of air nozzles arranged in parallel. A blocking means is then assigned to each air nozzle with the exception of the air nozzle with the smallest characteristic curve. The air nozzle with the smallest characteristic curve would thus always be open. When closing one or more air nozzles, the open air nozzles operate further, thus allowing the modulation range of the device according to the invention to be extended.
Figure 2 shows a modulation diagram for an inventive device according to a second embodiment of the invention in which three air nozzles are arranged in parallel. In the modulation diagram of figure 2, the rotational speed of the ventilator is indicated on the X-axis 21 in revolutions per minute and the heat load is indicated on the Y-axis 22 in kilowatt. The line 23 in figure 2 corresponds to the modulation graph of a single air nozzle, the line 24 to the modulation graph of two air nozzles arranged in parallel, and the line 25 to the modulation graph of three air nozzles arranged in parallel without the respective blocking means according to the invention. In this case, this would mean that the lower modulation limit of a device consisting of three air nozzles arranged in parallel is determined by the sum of the minimum capacities of all three air nozzles (line 25).
Moreover, figure 2 shows by line 26 a modulation graph of an inventive device consisting of three air nozzles, with two air nozzles each being assigned a blocking means. In the range 27 of the full-load operation, the ventilator runs at high rotational speeds; thus, the blocking means are open and combustion air flows through all three air nozzles. If the rotational speed of the ventilator is reduced, the blocking means assigned to the air nozzles with the higher characteristic curve are closed one after the other, and finally only the air nozzle with the smallest minimum capacity is open in the range 28 of the minimum-load operation. In this way, the modulation range of the device according to the invention can thus be increased towards small loads.
In this connection, it is to be remarked that, purely theoretically, also in devices according to the prior art, the modulation range can be lowered by more and more reducing the rotational speed of the ventilator. However, in this connection, there arises the physical problem that when the rotational speed of the ventilator is more and more reduced, the pressure difference generated at the air nozzles becomes very low and, thus, a stable control signal is no longer available. Insofar, a stable control signal for small operational loads can only be made available by means of the device according to the invention. Only by the device according to the invention can the modulation range thus be extended so as to achieve stable control signals.
A Device for Gas Burners The invention relates to a device for gas burners comprising a plurality of air nozzles for combustion air according to the preamble of claim 1.
A device according to the prior art is known from the DE
Utility Model 298 O1 429. In the device shown there, combustion air is moved through air nozzles arranged in parallel, with the minimum capacity and, thus, the lower modulation range of the device being determined by the sum of the minimum capacities of all air nozzles arranged in parallel. This lower modulation range restricts the range of application of such devices according to the prior art.
Further devices according to the prior art are known from the JP 57-188917A, the JP 57-31716A, the DE 197 28 965 A1 and the FR 758 974.
Proceeding therefrom, the present invention is based on the problem of creating a device for gas burners which comprises a plurality of air nozzles for combustion air and has a larger modulation range and, thus, a greater range of application.
This problem is solved by a device comprising the features of claim 1.
Further advantageous embodiments of the invention result from the subclaims and the description. In the following, preferred embodiments of the invention will be explained in greater detail by means of the drawing. In the drawing Fig. 1 shows a schematic sectional representation of an inventive device according to a first embodiment of the invention; and Fig. 2 shows a modulation diagram for an inventive device according to a second embodiment of the invention.
Figure 1 shows a first embodiment of a device according to the invention, the device comprising two air nozzles 10, 11 and a gas nozzle 12, with the flow of gas flowing through the gas nozzle 12 being mixed with the flows of combustion air flowing through the air nozzles 10, 11 and leaving the device according to the invention through a mixture outlet 13 in the direction of a gas burner of which the flames 14 are shown.
The two air nozzles 10, 11 of the embodiment according to figure 1 are, on the one hand, formed as Venturi nozzles and, on the other hand, connected with each other in parallel. In a device of that kind according to the prior art, this would mean that the minimum capacity of the device and its lower modulation range, respectively, is determined by the sum of the minimum capacities of the two air nozzles 10, 11.
In order to further decrease the minimum capacity and, thus, the lower modulation range of the device, a blocking means 15 is assigned to the air nozzle 11 in the embodiment shown in figure 1; this blocking means 15 is capable of shutting off the air flow through the air nozzle 11. Thus, when the air flow through the air nozzle 11 is shut off, combustion air is moved only through the air nozzle 10 and, consequently, the lower modulation range of the device according to the invention is shifted towards the minimum capacity of the air nozzle 10.
In the embodiment represented in figure l, the blocking means 15 is formed as a flap 16 having a spring member 17 assigned thereto. The strength of the elastic force of the spring member 17 as well as the design or construction of the flap 16 determines the blocking characteristic of the blocking means 15. This means, if the air flow through the air nozzle 10 falls below a certain value, the force exerted by this air flow on the flap 16 does no longer suffice to hold the flap 16 open against the elastic force of the spring member 17. Then, the flap 16, i.e. the blocking means 15, is closed.
In this connection, it is also of importance that the air nozzle 11 to which the blocking means is assigned is also assigned a bypass 18. This bypass 18 extends from an inlet side 19 to an outlet side 20 of the blocking means 15. By the bypass 18, it is guaranteed that even when the blocking means 15 is closed, a reduced flow of combustion air is moved from the air nozzle 11 in the direction of the burner which is not represented in detail. In this way, when the blocking means 15 is closed, gas is prevented from emerging through the air nozzle 11 as a result of a pressure difference.
In the embodiment represented in figure 1, the air nozzles 10, 11 differ with respect to their characteristic curve.
The air nozzle 10 has a smaller capacity than the air nozzle 11 and, thus, a minimum capacity.
In the embodiment represented in figure 1, both air nozzles 10, 11 are supplied with gas via a gas nozzle 12. Deviating from this embodiment as shown, it is also possible to assign a separate gas nozzle to each air nozzle 10, 11. In this case, when the blocking means 15 of the air nozzle 11 is closed, also the gas nozzle assigned to this air nozzle 11 has to be closed. This means, an additional blocking means would then be required.
In the embodiment shown in figure 1, the closing of the blocking means 15 depends on the flow of air through the air nozzle 11. This could be called a combustion air modulation. Instead of this, also an actuator which closes the blocking means 15 could be used. Such an actuator could, for instance, open or close the blocking means 15 in dependence on certain load levels.
It goes without saying that the principle described in figure 1 can be extended to devices comprising an arbitrary number of air nozzles arranged in parallel. A blocking means is then assigned to each air nozzle with the exception of the air nozzle with the smallest characteristic curve. The air nozzle with the smallest characteristic curve would thus always be open. When closing one or more air nozzles, the open air nozzles operate further, thus allowing the modulation range of the device according to the invention to be extended.
Figure 2 shows a modulation diagram for an inventive device according to a second embodiment of the invention in which three air nozzles are arranged in parallel. In the modulation diagram of figure 2, the rotational speed of the ventilator is indicated on the X-axis 21 in revolutions per minute and the heat load is indicated on the Y-axis 22 in kilowatt. The line 23 in figure 2 corresponds to the modulation graph of a single air nozzle, the line 24 to the modulation graph of two air nozzles arranged in parallel, and the line 25 to the modulation graph of three air nozzles arranged in parallel without the respective blocking means according to the invention. In this case, this would mean that the lower modulation limit of a device consisting of three air nozzles arranged in parallel is determined by the sum of the minimum capacities of all three air nozzles (line 25).
Moreover, figure 2 shows by line 26 a modulation graph of an inventive device consisting of three air nozzles, with two air nozzles each being assigned a blocking means. In the range 27 of the full-load operation, the ventilator runs at high rotational speeds; thus, the blocking means are open and combustion air flows through all three air nozzles. If the rotational speed of the ventilator is reduced, the blocking means assigned to the air nozzles with the higher characteristic curve are closed one after the other, and finally only the air nozzle with the smallest minimum capacity is open in the range 28 of the minimum-load operation. In this way, the modulation range of the device according to the invention can thus be increased towards small loads.
In this connection, it is to be remarked that, purely theoretically, also in devices according to the prior art, the modulation range can be lowered by more and more reducing the rotational speed of the ventilator. However, in this connection, there arises the physical problem that when the rotational speed of the ventilator is more and more reduced, the pressure difference generated at the air nozzles becomes very low and, thus, a stable control signal is no longer available. Insofar, a stable control signal for small operational loads can only be made available by means of the device according to the invention. Only by the device according to the invention can the modulation range thus be extended so as to achieve stable control signals.
List of Reference Signs:
air nozzle 11 air nozzle 12 gas nozzle 13 mixture outlet 14 burner flame blocking means 16 flap 17 spring member 18 bypass 19 inlet side outlet side 21 X-axis 22 Y-axis 23 line 24 line line 26 line 27 range 28 range
air nozzle 11 air nozzle 12 gas nozzle 13 mixture outlet 14 burner flame blocking means 16 flap 17 spring member 18 bypass 19 inlet side outlet side 21 X-axis 22 Y-axis 23 line 24 line line 26 line 27 range 28 range
Claims (7)
1. A device for gas burners, comprising at least two air nozzles (10, 11) for combustion air, comprising at least one gas nozzle (12) assigned to the air nozzles (10, 11), and comprising a ventilator generating a flow of air, wherein the air nozzles (10, 11) are arranged in parallel, wherein a blocking means (15) is assigned to one or more of the air nozzles (10, 11), respectively, and wherein each of these blocking means (15) is capable of selectively shutting off the flow of air through the respective air nozzle (10, 11), characterized in that the blocking means (15) or each blocking means (15) is formed as a flap (16) having a spring member (17) assigned thereto, wherein the strength of the elastic force of the respective spring member (17) and the form of the flap (16) determines the blocking characteristic of the respective blocking means (15).
2. The device according to claim 1, characterized in that at least one of the air nozzles (10, 11) differs from the other or each other air nozzle (10, 11) with respect to its characteristic curve.
3. The device according to claim 2, characterized in that all air nozzles (10, 11) differ from each other with respect to their characteristic curve.
4. The device according to claims 2 or 3, characterized in that each of the air nozzles (10, 11) except the air nozzle (10, 11) with the smallest characteristic curve is assigned a blocking means (15).
5. The device according to one or more of claims 1 to 4, characterized in that each air nozzle (10, 11) to which a blocking means (15) is assigned is also assigned a bypass (18).
6. The device according to claim 5, characterized in that the bypass (18) or each bypass (18) extends between an inlet side (19) and an outlet side (20) of the respective blocking means (15).
7. The device according to one or more of claims 1 to 6, characterized in that the air nozzles (10, 11) are formed as Venturi nozzles.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19925567.9 | 1999-06-04 | ||
| DE19925567A DE19925567C1 (en) | 1999-06-04 | 1999-06-04 | Device for gas burners |
| PCT/EP2000/004756 WO2000075566A1 (en) | 1999-06-04 | 2000-05-25 | Device for gas burners |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2371188A1 true CA2371188A1 (en) | 2000-12-14 |
Family
ID=7910210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002371188A Abandoned CA2371188A1 (en) | 1999-06-04 | 2000-05-25 | A device for gas burners |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6604938B1 (en) |
| EP (1) | EP1183483B1 (en) |
| AU (1) | AU5525700A (en) |
| CA (1) | CA2371188A1 (en) |
| DE (2) | DE19925567C1 (en) |
| WO (1) | WO2000075566A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160161112A1 (en) * | 2010-07-12 | 2016-06-09 | Gas Point S.R.L. | Premix Gas Burner |
| CN106662323A (en) * | 2014-06-04 | 2017-05-10 | 烈骑有限责任公司 | Modulating burner with venturi damper |
| EP3540311A1 (en) | 2018-03-13 | 2019-09-18 | Bertelli & Partners S.r.l. | Device for controlling a fuel-oxidizer mixture for premix gas burners |
| IT201800010736A1 (en) | 2018-11-30 | 2020-05-30 | Bertelli & Partners Srl | MIXTURE CONTROL DEVICE FOR PRE-MIXED GAS BURNER |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070204858A1 (en) * | 2006-02-22 | 2007-09-06 | The Brinkmann Corporation | Gas cooking appliance and control system |
| ITBO20080278A1 (en) * | 2008-04-30 | 2009-11-01 | Gas Point S R L | GAS BURNER WITH PRE-MIXING |
| DE102010044591B4 (en) * | 2010-09-07 | 2024-11-14 | Pittway Sàrl | gas regulator with attached Venturi nozzle |
| IT1402023B1 (en) | 2010-10-12 | 2013-08-28 | Riello Spa | POWER SUPPLY GROUP OF AN AIR / GAS MIXTURE. |
| DE102011014117A1 (en) * | 2011-03-15 | 2012-09-20 | Ebm-Papst Landshut Gmbh | Mixing device for mixing combustion air and gas for a gas appliance |
| KR101214745B1 (en) * | 2011-03-25 | 2012-12-21 | 주식회사 경동나비엔 | Gas-air mixer with branch fluid paths |
| ITMI20111738A1 (en) * | 2011-09-27 | 2013-03-28 | Smeg Spa | BURNER FOR A GAS COOKTOP AND GAS COOKTOP INCORPORATING SUCH BURNER |
| DE102012003501A1 (en) | 2012-01-31 | 2013-08-01 | Vaillant Gmbh | Fuel gas-air mixing device |
| KR101308932B1 (en) * | 2012-02-06 | 2013-09-23 | 주식회사 경동나비엔 | Gas-air mixer for burner |
| KR101308936B1 (en) * | 2012-02-06 | 2013-09-23 | 주식회사 경동나비엔 | Gas-air mixer for burner |
| KR101320113B1 (en) | 2012-02-28 | 2013-10-18 | 주식회사 경동나비엔 | Dual venturi for gas boiler |
| EP2653215B1 (en) | 2012-04-20 | 2020-01-01 | Honeywell Technologies Sarl | Gas/Air mixing device for a gas burner |
| DE102012009628A1 (en) * | 2012-05-15 | 2013-11-21 | Vaillant Gmbh | Fuel gas-air mixing device |
| AT513013B1 (en) * | 2012-05-21 | 2014-06-15 | Vaillant Group Austria Gmbh | Fuel gas-air mixing device |
| DE102012023008A1 (en) | 2012-11-26 | 2014-05-28 | Vaillant Gmbh | Fuel gas-air mixing device |
| ITMI20122008A1 (en) * | 2012-11-27 | 2014-05-28 | Polidoro Spa | DEVICE FOR THE MANAGEMENT OF THE COMBUSTIBLE / FUEL REPORT OF THERMOTECHNICAL PLANTS. |
| DE102013101676B4 (en) | 2013-02-20 | 2021-02-11 | Mhg Heiztechnik Gmbh | Gas-air mixing container and gas burner |
| KR101448992B1 (en) * | 2013-04-16 | 2014-10-13 | 주식회사 경동나비엔 | Dual venturi for burner |
| JP6725339B2 (en) * | 2016-03-28 | 2020-07-15 | リンナイ株式会社 | Premixing device |
| JP6654494B2 (en) * | 2016-04-01 | 2020-02-26 | リンナイ株式会社 | Control method of premixing device |
| US20210291127A1 (en) * | 2017-08-03 | 2021-09-23 | Time Engineering Co., Ltd | Fluid mixer |
| EP3508788B1 (en) * | 2018-01-09 | 2020-10-21 | Orkli, S. Coop. | Mixer device for a gas burner |
| EP3617596B1 (en) | 2018-08-28 | 2021-10-06 | Ademco Inc. | Method for operating a gas burner appliance |
| CN111828977B (en) * | 2020-07-16 | 2025-02-14 | 广东万和新电气股份有限公司 | A backflow prevention premixer and a gas water heater |
| DE102023204058A1 (en) | 2023-05-03 | 2024-11-07 | Robert Bosch Gesellschaft mit beschränkter Haftung | Air-gas mixture combustion plant with one combustion unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR758974A (en) * | 1933-07-28 | 1934-01-26 | Indugas Ind U Gasofen Bauges M | Adjustable flame length gas burner |
| DE2305764C3 (en) * | 1973-02-07 | 1982-01-14 | Herbert Rehn Maschinenhohlglas GmbH, 2000 Hamburg | Gas mixture metering device for a burner operated with compressed air, fuel gas and oxygen |
| JPS5731716A (en) * | 1980-08-04 | 1982-02-20 | Borukano Kk | Burner |
| JPS57188917A (en) * | 1981-05-19 | 1982-11-20 | Matsushita Electric Ind Co Ltd | Combustor |
| US4417868A (en) * | 1981-09-04 | 1983-11-29 | Battelle Development Corporation | Compact plenum for pulse combustors |
| JPS58182031A (en) * | 1982-04-16 | 1983-10-24 | Matsushita Electric Ind Co Ltd | Combustion control device |
| JPH0776613B2 (en) * | 1986-07-16 | 1995-08-16 | 松下電器産業株式会社 | Hob |
| US5799831A (en) * | 1996-03-20 | 1998-09-01 | Ecolab Inc. | Dual aspirator |
| CH691137A5 (en) * | 1996-07-01 | 2001-04-30 | Vaillant Gmbh | Premixing gas burner. |
| DE19635974A1 (en) * | 1996-09-05 | 1998-03-12 | Stiebel Eltron Gmbh & Co Kg | Gas-air mixture system for gas heating apparatus |
| US6206687B1 (en) * | 1997-01-24 | 2001-03-27 | Aaf-Mcquay Inc. | High turndown modulating gas burner |
| DE19728925A1 (en) | 1997-07-07 | 1999-01-14 | Bosch Gmbh Robert | Device for adapting control devices of a motor vehicle |
| DE29801429U1 (en) * | 1998-01-16 | 1998-05-14 | Honeywell B.V., Amsterdam | Gas control unit with attached Venturi nozzle and housing |
| US6375454B1 (en) * | 1999-11-12 | 2002-04-23 | Sarcos, L.C. | Controllable combustion device |
-
1999
- 1999-06-04 DE DE19925567A patent/DE19925567C1/en not_active Expired - Fee Related
-
2000
- 2000-05-25 DE DE50005528T patent/DE50005528D1/en not_active Expired - Fee Related
- 2000-05-25 WO PCT/EP2000/004756 patent/WO2000075566A1/en not_active Ceased
- 2000-05-25 EP EP00940268A patent/EP1183483B1/en not_active Expired - Lifetime
- 2000-05-25 CA CA002371188A patent/CA2371188A1/en not_active Abandoned
- 2000-05-25 AU AU55257/00A patent/AU5525700A/en not_active Abandoned
- 2000-05-25 US US10/009,371 patent/US6604938B1/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160161112A1 (en) * | 2010-07-12 | 2016-06-09 | Gas Point S.R.L. | Premix Gas Burner |
| US9677759B2 (en) * | 2010-07-12 | 2017-06-13 | Gas Point S.R.L. | Premix gas burner |
| CN106662323A (en) * | 2014-06-04 | 2017-05-10 | 烈骑有限责任公司 | Modulating burner with venturi damper |
| US10161627B2 (en) | 2014-06-04 | 2018-12-25 | Lochinvar, Llc | Modulating burner with venturi damper |
| CN106662323B (en) * | 2014-06-04 | 2019-09-17 | 烈骑有限责任公司 | Adjustable combustion device with Venturi tube damper |
| EP3540311A1 (en) | 2018-03-13 | 2019-09-18 | Bertelli & Partners S.r.l. | Device for controlling a fuel-oxidizer mixture for premix gas burners |
| CN110275561A (en) * | 2018-03-13 | 2019-09-24 | 贝尔泰利联合公司 | Equipment for controlling the fuel-oxidant mixture of premixed gas burner |
| US10900663B2 (en) | 2018-03-13 | 2021-01-26 | Bertelli & Partners S.R.L. | Device for controlling a fuel-oxidizer mixture for premix gas burners |
| IT201800010736A1 (en) | 2018-11-30 | 2020-05-30 | Bertelli & Partners Srl | MIXTURE CONTROL DEVICE FOR PRE-MIXED GAS BURNER |
| EP3660399A1 (en) | 2018-11-30 | 2020-06-03 | Bertelli & Partners S.r.l. | Device for controlling a mixture in a premix gas burner |
| US11530816B2 (en) | 2018-11-30 | 2022-12-20 | Bertelli & Partners S.R.L | Device for controlling a mixture in a premix gas burner |
Also Published As
| Publication number | Publication date |
|---|---|
| AU5525700A (en) | 2000-12-28 |
| DE19925567C1 (en) | 2000-12-14 |
| EP1183483B1 (en) | 2004-03-03 |
| US6604938B1 (en) | 2003-08-12 |
| WO2000075566A1 (en) | 2000-12-14 |
| DE50005528D1 (en) | 2004-04-08 |
| EP1183483A1 (en) | 2002-03-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |