CN113680224A - Gas/air mixing device for gas burner - Google Patents
Gas/air mixing device for gas burner Download PDFInfo
- Publication number
- CN113680224A CN113680224A CN202110423247.4A CN202110423247A CN113680224A CN 113680224 A CN113680224 A CN 113680224A CN 202110423247 A CN202110423247 A CN 202110423247A CN 113680224 A CN113680224 A CN 113680224A
- Authority
- CN
- China
- Prior art keywords
- gas
- mixing device
- groove
- air mixing
- hole
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 106
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
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, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
-
- 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
- F23D14/34—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air
- F23D14/36—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air in which the compressor and burner form a single unit
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
The present invention relates to a gas/air mixing device configured to mix gas and air to provide a gas/air mixture. The gas/air mixing device has a mixer housing with a mounting flange configured to mount the gas/air mixing device to the fan housing such that a sealing surface of the mounting flange is in contact with a sealing surface of the fan housing, wherein the sealing surface of the mounting flange has grooves, i.e. a first groove having a first radius and a second groove having a second radius, or wherein the sealing surface of the fan housing has grooves, i.e. either the first groove or the second groove. The groove is configured to receive a sealing element. The mixer housing provides an inlet opening for air, an inlet opening for gas and an outlet opening for the gas/air mixture. The sealing surface of the mounting flange surrounds the outlet opening of the mixer housing. The mounting flange of the mixer housing has a projection with a section configured to receive a mounting screw.
Description
Technical Field
The present patent application relates to a gas/air mixing device of a gas burner and an assembly with a gas/air mixing device and a fan.
Background
Both EP 1959194B1 and US 9677761B2 disclose a gas/air mixing device with an integrated fan gas burner. The gas/air mixing device is configured to mix gas and air to provide a gas/air mixture. The gas/air mixing device has a mixer housing with a mounting flange configured to mount the gas/air mixing device to a gas burner housing of a gas burner. The mixer housing has an inlet opening for air, an inlet opening for gas and an outlet opening for the gas/air mixture. The mounting flange surrounds an outlet opening for the gas/air mixture.
EP 2927584 a1, US 6106276A and EP 3415817a1 also disclose a gas/air mixing device for a gas burner.
Other prior art is disclosed in EP 2426413 a2, EP 2762780 a2 and EP 3015768 a 1.
Disclosure of Invention
Against this background, a new gas/air mixing device for a gas burner is provided.
The novel gas/air mixing device has a mixer housing with a mounting flange configured to mount the gas/air mixing device to a fan housing of a fan of a gas burner in such a way that a sealing surface of the mounting flange is in contact with a sealing surface of the fan housing.
The mixer housing of the novel gas/air mixing device has an inlet opening for air, an inlet opening for gas and an outlet opening for the gas/air mixture.
The mounting flange of the mixer housing of the novel gas/air mixing device surrounds the outlet opening of the mixer housing.
According to a first alternative, the sealing surface of the mounting flange of the mixer housing of the new gas/air mixing device has a groove configured to accommodate a sealing element, i.e. a first groove having a first radius for accommodating a first sealing element, and a second groove having a second radius different from the first radius for alternatively accommodating a second sealing element.
According to a second alternative, the sealing surface of the fan housing has a groove for accommodating the sealing element, i.e. a first groove having a first radius for accommodating the first sealing element, or a second groove having a second radius different from the first radius for accommodating the second sealing element.
The mounting flange of the mixer housing of the new gas/air mixing device has a projection with a section configured to accommodate a mounting screw, i.e. with: a first section configured to provide a first through hole for mounting a screw used when one of the first and second sealing elements is to be used for sealing the mixer housing relative to the fan housing; and a second section configured to provide a second through hole for mounting a screw used when the other of the first sealing element and the second sealing element is to be used for sealing the mixer housing with respect to the fan housing.
The gas/air mixing device may be used in conjunction with different fan housings.
The first via may be factory provided. The first through hole and the first recess are adapted to most common fan housings.
The gas/air mixing device may also be used in combination with other fan housings by providing a second through hole and by using a sealing element in the second recess.
This increases the flexibility of the gas/air mixing device.
According to the first alternative above, the sealing surface of the mounting flange of the mixer housing has at least two grooves, both of which are configured to accommodate respective sealing elements, namely a first groove having a first radius for accommodating a first sealing element, and a second groove having a second radius different from the first radius for alternatively accommodating a second sealing element. Depending on which recess is used to accommodate the respective sealing element, either the first through-hole or the second through-hole is used to accommodate the mounting screw.
According to the second alternative described above, the sealing surface of the fan housing has a single groove housing the respective sealing element. Depending on the radius of the recess, either the first or the second through hole is used to accommodate a mounting screw.
Preferably, the first through-hole provided by the first section of the projection is a factory-provided through-hole and the second through-hole provided by the second section of the projection is a field-installed through-hole.
According to a preferred embodiment, the first radius of the first groove is larger than the second radius of the second groove. A first section of the protrusion configured to provide a first through-hole is positioned radially outward of the first groove. A second section of the projection configured to provide a second through-hole is positioned radially outward of the second groove, the second section preferably radially overlapping the first groove. This increases the flexibility of the gas/air mixing device.
According to a preferred embodiment, the first through hole is an oblong hole. Preferably, the oblong aperture is arcuate. This further increases the flexibility of the gas/air mixing device.
An assembly having a gas/air mixing device and a fan is defined in claim 13.
Drawings
Preferred developments of the invention are provided by the dependent claims and the subsequent description. Exemplary embodiments are explained in more detail on the basis of the drawings, in which:
fig. 1 shows a perspective view of a gas/air mixing device of a gas burner;
FIG. 2 shows a top view of the gas/air mixing device;
fig. 3 shows a bottom view of the gas/air mixing device in a first use situation of the gas/air mixing device;
fig. 4 shows a bottom view of the gas/air mixing device in a second use situation of the gas/air mixing device;
FIG. 5 shows a further expanded top view of the gas/air mixing device;
FIG. 6 shows a top view of an assembly with the gas/air mixing device and fan of FIG. 5;
fig. 7 shows a top view of the fan of fig. 6.
Detailed Description
The present invention relates to a gas/air mixing device 10 of a gas burner (not shown).
The gas/air mixing device 10 has a mixer housing 11 with a mounting flange 12. The mounting flange 12 is configured to mount the gas/air mixing device 10 to a fan housing 25 of a fan 24 of a gas burner.
The mixer housing 11 of the gas/air mixing device 10 has an inlet opening 13 for air, an inlet opening 14 for gas and an outlet opening 15 for the gas/air mixture.
The mounting flange 12 of the mixer housing 11 of the gas/air mixing device 10 has a sealing surface 12a surrounding the outlet opening 15 of the mixer housing 11. See fig. 3, 4.
When the gas/air mixing device 10 is mounted to the fan 24, the sealing surface 12a of the mixer housing 11 is in contact 26a with the sealing surface of the fan housing 25 of the fan 24. The sealing surface 26a of the fan housing 25 may be provided by a mounting flange 26 of the fan housing 25.
When the gas/air mixing device 10 is mounted to the fan 24, the outlet opening 15 of the mixer housing 11 communicates with the inlet opening 27 of the fan housing 25. The fan 24 draws the gas/air mixture through an inlet opening 27 of the fan housing 25. The diameter of the outlet opening 15 of the mixer housing 11 is adapted to the diameter of the inlet opening 27 of the fan housing 25. The diameter of the outlet opening 15 of the mixer housing 11 and the diameter of the inlet opening 27 of the fan housing 25 may be the same.
The mixer housing 11 of the gas/air mixing device 10 accommodates a mixing unit 23 for mixing air and gas.
The mixing unit 23 may be provided by a venturi (venturi) nozzle.
In the embodiment of fig. 1 to 4, the mounting flange 12 (i.e. the sealing surface 12 a) of the mixer housing 11 of the gas/air mixing device 10 has grooves 16, 17, the grooves 16, 17 being configured to accommodate sealing elements, namely a first groove 16 having a first radius for accommodating a first sealing element 18, and a second groove 17 having a second radius different from the first radius for accommodating a second sealing element 19.
The sealing elements 18, 19 are preferably provided by sealing rings.
Alternatively (see the embodiment of fig. 5-7), the sealing surface 26a of the fan housing 25 has a groove configured to receive a respective sealing element, i.e. a first groove 16 having a first radius for receiving the first sealing element 18, or alternatively a second groove 17 having a second radius different from the first radius for receiving the second sealing element 19.
The mounting flange 12 of the mixer housing 11 of the gas/air mixing device 10 has a projection 20, the projection 20 having sections 20a, 20b configured to receive mounting screws 28. Each projection 20 has a first section 20a, the first section 20a being configured to provide a first through hole 21, the first through hole 21 for mounting a screw 28 used when one of the first and second sealing elements 18, 19 is to be used for sealing the mixer housing 11 with respect to the fan housing 25. Furthermore, each projection 20 has a second section 20b, the second section 20b being configured to provide or receive a second through hole 22, the second through hole 22 being for mounting a screw 28 used when the other of the first sealing element 18 and the second sealing element 19 is to be used for sealing the mixer housing 11 with respect to the fan housing 25.
The first through hole 21 provided by the first section 20a may be a factory-provided through hole. The second through hole 22 provided by the second section 20b may be a field-installed through hole. In the following description, the first through-hole 21 is factory-provided, and the second through-hole 22 may be field-installed. It may also be possible that both the first and second through-holes are field installed.
In the embodiment shown in fig. 1 to 4, the first radius of the first groove 16 is larger than the second radius of the second groove 17. A first section 20a of the projection 20 with a factory-provided first through hole 21 is positioned radially outside the first groove 16. A second section 20b of the projection 20 configured to provide a field-installed second through-hole 21 is positioned radially outward of the second groove 17, the second section 20b radially overlapping the first groove 16 in the illustrated embodiment.
There may be no radial overlap between the first recess 16 and the field-installed second through-hole 21 if there is sufficient space between the first recess 16 and the second recess 17. In this case, the second section 20b of the projection 20 for providing the second through hole 21 for field installation is positioned radially between the first groove 16 and the second groove 17.
When the first sealing element 18 (see fig. 3) in the first recess 16 is used to seal the mixer housing 11 with respect to the fan housing 25, then the first through hole 21 provided at the factory is used to accommodate a mounting screw 28 by which the mixer housing 11 is mounted to the fan housing 25. In this case, a second through hole 21, which will not be field installed, is drilled into the second section 20b of the projection 20. The first through-hole 21 provided at the factory is then fitted to the corresponding mounting hole of the fan housing 25.
When a second sealing element 19 (see fig. 4) in the second groove 17 is used to seal the mixer housing 11 with respect to the fan housing, then a field-installed second through-hole 21 is drilled into the second section 20b of the projection 20. In this case, the second through hole 21, which is installed on site, is used to accommodate a mounting screw 28, by which mounting screw 28 the mixer housing 11 is mounted to the fan housing 25.
In the embodiment shown in fig. 1 to 4, the first through hole 21 provided in the factory is a circular hole.
The gas/air mixing device 10 may be used in conjunction with different fan housings. This increases the flexibility of the gas/air mixing device 10.
In the embodiment shown in fig. 5 to 7, the factory-provided first through hole 21 is an oblong hole, wherein the oblong hole is arc-shaped. These oblong holes may be circular arc shaped.
Such oblong holes allow the mixer housing 11 to rotate relative to the fan housing 25 when the mixer housing 11 is mounted at the fan housing 25 using such oblong holes. This further increases the flexibility of the gas/air mixing device 10.
In the embodiment shown in fig. 1 to 4, the sealing surface 12a of the mounting flange 12 of the mixer housing 11 of the gas/air mixing device 10 has a groove 16, 17 to accommodate one of the sealing elements 18, 19. Accordingly, fig. 1 to 4 relate to a gas/air mixing device 10 of a gas burner, configured to mix gas and air to provide a gas/air mixture, wherein the gas/air mixing device 10 has a mixer housing 11 with a mounting flange 12, the mounting flange 12 being configured to mount the gas/air mixing device 10 to a fan housing of a fan of the gas burner such that a sealing surface 12a of the mounting flange 12 is in contact with a sealing surface of the fan housing. The sealing surface 12a of the mounting flange 12 has grooves 16, 17 configured to receive sealing elements 18, 19, i.e. a first groove 16 having a first radius to receive a first sealing element 18, and a second groove 17 having a second radius different from the first radius to receive a second sealing element 19, wherein the first radius of the first groove 16 is larger than the second radius of the second groove 17. The mixer housing 11 provides an inlet opening 13 for air, an inlet opening 14 for gas and an outlet opening 15 for a gas/air mixture. The mounting flange 12 of the mixer housing 11 (i.e., the sealing surface 12a of the mounting flange 12) surrounds the outlet opening 15 of the mixer housing 11. The mounting flange 12 of the mixer housing 11 has a projection 20 with sections 20a, 20b configured to accommodate mounting screws, i.e. a first section 20a and a second section 20b, the first section 20a having a first through hole 21, which first through hole 21 is preferably factory provided, for mounting a screw used when one of the first sealing element 18 and the second sealing element 19 is to be used for sealing the mixer housing 11 with respect to the fan housing, the second section 20b being configured to provide a second through hole 22, which second through hole 22 is preferably field mounted, for mounting a screw used when the other of the first sealing element 18 and the second sealing element 19 is to be used for sealing the mixer housing 11 with respect to the fan housing.
A first section 20a of the projection 20 having a first through hole 21 is positioned radially outside the first groove 16. The second section 20b of the projection 20 configured to provide the second through hole 22 is positioned radially outward of the second groove 17.
As described above, alternatively, the sealing surface of the fan housing 25 of the fan 24 has a single groove for accommodating the sealing member, i.e., either the first groove 16 having a first radius to accommodate the first sealing member 18 or the second groove 17 having a second radius different from the first radius to accommodate the second sealing member 19. This is shown in the embodiment of fig. 5 to 7. In the embodiment of fig. 5 to 7, as described above, the projection 20 with the sections 20a, 20b of the mounting flange 12 of the mixer housing 11 interacts with a corresponding groove of the sealing surface 26a of the fan housing 25.
In the embodiment of fig. 5 to 7, depending on the radius of the grooves 16, 17 of the sealing surface 26a of the fan housing 25 and the radius of the respective sealing elements 18, 19, either the first through-hole 21 (preferably the factory-provided first through-hole 21) or the second through-hole 21 (preferably the field-installed second through-hole 21) is used to accommodate the mounting screw 28, by which the mixer housing 11 is mounted to the fan housing 25. In fig. 6, a first through hole 21, preferably a factory provided first through hole 21, accommodates a mounting screw 28. The mounting screws 28 received by the first through holes 21 penetrate into corresponding mounting holes (not shown) of the mounting flange 26 of the fan housing 25.
Thus, fig. 5 to 7 relate to an assembly of a gas burner having a fan 24 with a fan housing 25 and a gas/air mixing device 10, the gas/air mixing device 10 being configured to mix gas and air to provide a gas/air mixture.
The gas/air mixing device 10 has a mixer housing 11 with a mounting flange 12, the mounting flange 12 being mounted to a fan housing 25 of a fan 24 in such a way that a sealing surface 12a of the mounting flange 12 is in contact with a sealing surface of the fan housing.
The sealing surface of the fan housing 25 has a single groove accommodating the sealing elements 18, 19, i.e. the groove 16 has a first radius to accommodate the first sealing element 18, or the groove 17 has a second radius different from the first radius to accommodate the second sealing element 19, wherein the first radius of the groove 16 is larger than the second radius of the groove 17.
The mixer housing 11 provides an inlet opening 13 for air, an inlet opening 14 for gas and an outlet opening 15 for a gas/air mixture. The mounting flange 12 of the mixer housing 11 (i.e., the sealing surface 12a of the mounting flange 12) surrounds the outlet opening (15) of the mixer housing 11.
The mounting flange 12 of the mixer housing 11 has a protrusion 20, the protrusion 20 having sections 20a, 20b configured to accommodate mounting screws, i.e. having a first section 20a and a second section 20b, the first section 20a having a first through hole 21 for mounting screws, the first through hole 21 preferably being factory provided, the second section 20b being configured to provide a second through hole 22 for mounting screws, the second through hole 22 preferably being field mounted. Depending on the radius of the grooves 16, 17 of the sealing surface 26a of the fan housing 25 and the radius of the respective sealing element 18, 19, either the first through hole 21 or the second through hole 21 is used to accommodate a mounting screw by which the mixer housing 11 is mounted to the fan housing 25.
List of reference numerals
10 air/gas mixing device
11 casing
12 mounting flange
12a sealing surface
13 air inlet opening
14 gas inlet opening
15 gas/air outlet opening
16 grooves
17 groove
18 sealing element
19 sealing element
20 projection
20b segment
21 through hole
22 through hole
23 mixing unit
24 Fan
25 Fan case
26 mounting flange
26a sealing surface
27 inlet opening
28 mounting screw
Claims (13)
1. A gas/air mixing device (10) of a gas burner, the gas/air mixing device (10) being configured to mix gas and air to provide a gas/air mixture, wherein
The gas/air mixing device (10) having a mixer housing (11) with a mounting flange (12), the mounting flange (12) being configured to mount the gas/air mixing device (10) to a fan housing (25) of a fan (24) of the gas burner in such a way that a sealing surface (12 a) of the mounting flange (12) is in contact with a sealing surface (26 a) of the fan housing (25),
wherein the sealing surface (12 a) of the mounting flange (12) has a groove (16, 17) configured to accommodate a sealing element (18, 19), a first groove (16) having a first radius to accommodate a first sealing element (18) and a second groove (17) having a second radius different from the first radius to accommodate a second sealing element (19), or
Wherein the sealing surface (26 a) of the fan housing (25) has a groove (16, 17) for accommodating a sealing element (18, 19), either a first groove (16) having a first radius to accommodate a first sealing element (18) or a second groove (17) having a second radius different from the first radius to accommodate a second sealing element (19),
the mixer housing (11) providing an inlet opening (13) for the air,
the mixer housing (11) providing an inlet opening (14) for the gas,
the mixer housing (11) providing an outlet opening (13) for the gas/air mixture,
the mounting flange (12) of the mixer housing (11), i.e. the sealing surface (12 a) of the mounting flange (12), surrounds the outlet opening (15) of the mixer housing (11),
the mounting flange (12) of the mixer housing (11) has a projection (20) with sections (20 a, 20 b) configured to accommodate mounting screws (28), i.e. a
Having a first section (20 a) configured to provide a first through hole (21) for mounting a screw (28) used when one of the first sealing element (18) and the second sealing element (19) is to be used for sealing the mixer housing (11) with respect to the fan housing (25), and
has a second section (20 b) configured to provide a second through hole (22) for mounting a screw (28) used when the other of the first sealing element (18) and the second sealing element (19) is to be used for sealing the mixer housing (11) with respect to the fan housing (25).
2. A gas/air mixing device according to claim 1, characterised in that
The first section (20 a) has a factory-provided through-hole (21).
3. A gas/air mixing device according to claim 1 or 2, characterised in that
The second through hole (22) provided by the second section (20 b) is a field-installed through hole (22).
4. A gas/air mixing device according to any of claims 1-3, characterised in that
The first radius of the first groove (16) is larger than the second radius of the second groove (17),
a first section (20 a) of the projection (20) having a first through hole (21) is positioned radially outside the first groove (16),
a second section (20 b) of the protrusion (20) configured to provide a second through hole (22) is positioned radially outward of the second groove (17).
5. A gas/air mixing device according to claim 4, characterised in that
The second section (20 b) of the projection (20) is positioned to radially overlap the first groove (16).
6. A gas/air mixing device according to claim 4, characterised in that
The second section (20 b) of the projection (20) is positioned radially between the first groove (16) and the second groove (17).
7. A gas/air mixing device according to any of claims 4 to 6, characterised in that
The first through hole (21) of the first section (20 a) is for accommodating the mounting screw (28) when the first sealing element (18) is used for sealing the mixer housing (11) with respect to the fan housing (25).
8. A gas/air mixing device according to any of claims 4 to 6, characterised in that
The second through hole (22) provided at the second section (20 b) is for accommodating the mounting screw (28) when the second sealing element (19) is used for sealing the mixer housing (11) with respect to the fan housing (25).
9. A gas/air mixing device according to any of claims 1 to 8, characterised in that
The first through hole (21) is a circular hole.
10. A gas/air mixing device according to any of claims 1 to 8, characterised in that
The first through hole (21) is an oblong hole.
11. A gas/air mixing device according to claim 10, characterised in that
The oblong aperture is arcuate.
12. A gas/air mixing device according to claim 10 or 11, characterised in that
The oblong holes are circular arc shaped.
13. An assembly, having:
the gas/air mixing device (10) according to any one of claims 1 to 12,
a fan (24).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21172064.4A EP3913284B1 (en) | 2020-05-19 | 2021-05-04 | Gas/air mixing device of a gas burner |
| US17/323,607 US11708972B2 (en) | 2020-05-19 | 2021-05-18 | Gas/air mixing device of a gas burner |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20175430 | 2020-05-19 | ||
| EP20175430.6 | 2020-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113680224A true CN113680224A (en) | 2021-11-23 |
Family
ID=70779498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110423247.4A Pending CN113680224A (en) | 2020-05-19 | 2021-04-20 | Gas/air mixing device for gas burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113680224A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000033960A (en) * | 1998-07-16 | 2000-02-02 | Nisshin Gosei:Kk | Cap for drink can |
| JP2000104879A (en) * | 1998-09-28 | 2000-04-11 | Toyo Kogyo Kk | Jig for double pipe and double pipe |
| US20080131283A1 (en) * | 2006-12-04 | 2008-06-05 | Minebea Co., Ltd. | Fan for a gas burner system |
| US20100068668A1 (en) * | 2008-09-16 | 2010-03-18 | Siemens Building Technologies Hvac Products Gmbh | Gas burner |
| CN102209869A (en) * | 2008-11-07 | 2011-10-05 | 意大利精密机械技术股份公司 | A gas burner apparatus with pre-mixing |
| EP2426413A2 (en) * | 2010-09-07 | 2012-03-07 | Honeywell Technologies Sarl | Gas control device with attached Venturi nozzle |
| EP2770254A1 (en) * | 2013-02-20 | 2014-08-27 | MHG Heiztechnik GmbH | Gas air mixture container, gas burner and gas air mixture container set |
| CN105378295A (en) * | 2013-07-18 | 2016-03-02 | 大金工业株式会社 | Turbo compressor and turbo refrigerator |
| EP3015767A1 (en) * | 2014-10-29 | 2016-05-04 | Honeywell Technologies Sarl | Assembly comprising a gas valve and a gas/air mixer |
| CN106877563A (en) * | 2015-10-15 | 2017-06-20 | 信浓绢糸株式会社 | Drive device and blowing plant |
| CN107345528A (en) * | 2016-05-06 | 2017-11-14 | 哈米尔顿森德斯特兰德公司 | air cycle machine fan and compressor shell |
| US9982821B1 (en) * | 2015-01-28 | 2018-05-29 | United Technologies Corporation | Doubled wall pipe flange and coupling configuration |
| US20190255493A1 (en) * | 2018-02-20 | 2019-08-22 | Wolfgang Rüberg | Mixing Machine |
-
2021
- 2021-04-20 CN CN202110423247.4A patent/CN113680224A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000033960A (en) * | 1998-07-16 | 2000-02-02 | Nisshin Gosei:Kk | Cap for drink can |
| JP2000104879A (en) * | 1998-09-28 | 2000-04-11 | Toyo Kogyo Kk | Jig for double pipe and double pipe |
| US20080131283A1 (en) * | 2006-12-04 | 2008-06-05 | Minebea Co., Ltd. | Fan for a gas burner system |
| US20100068668A1 (en) * | 2008-09-16 | 2010-03-18 | Siemens Building Technologies Hvac Products Gmbh | Gas burner |
| CN102209869A (en) * | 2008-11-07 | 2011-10-05 | 意大利精密机械技术股份公司 | A gas burner apparatus with pre-mixing |
| EP2426413A2 (en) * | 2010-09-07 | 2012-03-07 | Honeywell Technologies Sarl | Gas control device with attached Venturi nozzle |
| EP2770254A1 (en) * | 2013-02-20 | 2014-08-27 | MHG Heiztechnik GmbH | Gas air mixture container, gas burner and gas air mixture container set |
| CN105378295A (en) * | 2013-07-18 | 2016-03-02 | 大金工业株式会社 | Turbo compressor and turbo refrigerator |
| EP3015767A1 (en) * | 2014-10-29 | 2016-05-04 | Honeywell Technologies Sarl | Assembly comprising a gas valve and a gas/air mixer |
| US9982821B1 (en) * | 2015-01-28 | 2018-05-29 | United Technologies Corporation | Doubled wall pipe flange and coupling configuration |
| CN106877563A (en) * | 2015-10-15 | 2017-06-20 | 信浓绢糸株式会社 | Drive device and blowing plant |
| CN107345528A (en) * | 2016-05-06 | 2017-11-14 | 哈米尔顿森德斯特兰德公司 | air cycle machine fan and compressor shell |
| US20190255493A1 (en) * | 2018-02-20 | 2019-08-22 | Wolfgang Rüberg | Mixing Machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2350693C (en) | Quick-connect fan blade mounting assembly | |
| CN111365302B (en) | Blower fan | |
| WO1999066175A1 (en) | Ceiling fan assembly and method of assembling same | |
| CN113680224A (en) | Gas/air mixing device for gas burner | |
| EP3015768A1 (en) | Assembly comprising a gas valve, a fan, a gas/air mixer and a burner door | |
| EP3913284A1 (en) | Gas/air mixing device of a gas burner | |
| RU2006114778A (en) | ELECTRIC MOTOR FOR ELECTRIC FAN AND METHOD FOR ITS ASSEMBLY | |
| CN107288900B (en) | Ceiling fan | |
| WO2020083022A1 (en) | Control panel assembly of household appliance | |
| US20050067545A1 (en) | Ceiling fixture support with shallow housing | |
| JP4525103B2 (en) | Piping cover | |
| CN220506921U (en) | Bearing assembly for air duct machine and air duct machine | |
| JPH08247089A (en) | Ventilation fan installation device | |
| KR20200101778A (en) | Ventilation equipment | |
| US11598349B2 (en) | Ceiling-inserted fan | |
| KR101033577B1 (en) | A Mobile Handset Having A Camera Mounted | |
| CN111788396B (en) | Mounting structure of draining pump | |
| CN111801502A (en) | Mounting structure of draining pump | |
| JP2022151558A (en) | drainage pump | |
| KR970028176A (en) | Discharge grill motor fixing structure of indoor unit for air conditioner | |
| JP6484794B2 (en) | Indoor vent | |
| JP2022072795A (en) | Shaft sealing device, rotary machine, and method of assembling shaft sealing device | |
| JP2022072796A (en) | Shaft sealing device, rotary machine, and method of assembling shaft sealing device | |
| KR200244650Y1 (en) | Drill assembly for cutting glass hole | |
| US20180238345A1 (en) | Connector unit for a fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |