CN111417332A - Air cleaning appliance comprising a disc stack separator - Google Patents
Air cleaning appliance comprising a disc stack separator Download PDFInfo
- Publication number
- CN111417332A CN111417332A CN201780097286.1A CN201780097286A CN111417332A CN 111417332 A CN111417332 A CN 111417332A CN 201780097286 A CN201780097286 A CN 201780097286A CN 111417332 A CN111417332 A CN 111417332A
- Authority
- CN
- China
- Prior art keywords
- dust
- appliance
- separation chamber
- air
- dust separation
- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1608—Cyclonic chamber constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
- B04B5/12—Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
- B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
- B04B5/12—Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers
- B04B2005/125—Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers the rotors comprising separating walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
- B04C2009/007—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with internal rotors, e.g. impeller, ventilator, fan, blower, pump
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
- B04C2009/008—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with injection or suction of gas or liquid into the cyclone
Abstract
The invention relates to an appliance for cleaning an airflow, the appliance comprising a dust separator (10), the dust separator (10) comprising: a dust separating chamber (11) comprising an air inlet (12) from which an air flow to be cleaned enters the dust separating chamber (11); an air outlet (13) from which a cleaned airflow exits the dust separation chamber (11); a shaft (14) arranged along a longitudinal axis of the dust separation chamber (11); and a plurality of spaced apart disc members (15) arranged along the shaft (14), the shaft (14) being arranged to rotate the disc members (15) to generate a centrifugal force which transports particles contained in the airflow entering the air inlet (12) towards an inner wall of the dust separation chamber (11) whilst moving the airflow towards the centre of the spaced apart disc members (15) to travel towards the air outlet (13) and out of the dust separation chamber (11).
Description
Technical Field
The present invention relates to an appliance for cleaning an airflow, the appliance comprising a dust separator.
Background
In prior art appliances for cleaning an airflow, such as vacuum cleaners, a number of different techniques are available for separating debris and dust from a dirty airflow entering an air inlet in order to discharge a clean airflow via an air outlet. These include, for example, the use of disposable dust bags that allow air to pass through but capture most of the dust and debris; the use of a container and filter instead of a dust bag ("bagless"); or cyclonic separation, in which dirty air enters the chamber inlet and dirt particles are accelerated to a high rotational speed and collide against the inner wall of the chamber and fall into a separate dust receptacle, while cleaned air follows the inner airflow vortex and leaves the chamber via the air outlet.
As the demand for improved cleaning performance of vacuum cleaners continues to increase, there is a need for improved dust separation processes.
Disclosure of Invention
It is an object of the present invention to solve or at least mitigate this problem in the art and thereby provide an improved dust separator for an air cleaning appliance.
This object is achieved by an appliance configured to clean an airflow, the appliance comprising a dust separator comprising: a dust separating chamber including an air inlet from which an air flow to be cleaned enters the dust separating chamber; an air outlet from which a cleaned airflow exits the dust separation chamber; a shaft disposed along a longitudinal axis of the dust separation chamber; and a plurality of spaced disc members arranged along the shaft, the shaft being arranged to rotate the disc members to generate a centrifugal force which transports particles contained in an airflow entering the air inlet towards an inner wall of the dust separation chamber whilst moving the airflow towards the centre of the spaced disc members to travel towards the air outlet and out of the dust separation chamber.
Thus, the centrifugal force generated by the rotating disc member will cause the cleaned air to leave the air outlet, while the dust and debris collide with the inner wall of the dust separation chamber and fall by gravity towards the bottom section of the chamber.
Dust separators are commonly referred to as disc stack separators, disc bowl centrifuges, or cone plate centrifuges.
Advantageously, the inventors have found that when the disc separator is implemented in an appliance such as a vacuum cleaner, the disc separator is more energy efficient than a cyclonic separator for achieving the same separation performance.
With a dust separator according to embodiments, the dust separation will advantageously be improved, and any filter(s) located downstream of the dust separator (which are typically present in the case of a vacuum cleaner) will not be clogged, and the user will therefore not need to manually clean these filters.
In an embodiment, the dust separation chamber is arranged with one or more openings in a section of the chamber where one of the disc members faces the air outlet, wherein air enters the dust separation chamber via the openings so as to counteract an air flow flowing from the air inlet to the air outlet via a bypass path created between said one of the disc members and the section.
In a vacuum cleaner, the dust separator is at a negative pressure with respect to the atmosphere, which negative pressure is generated by a motor fan. This has the effect of: the air will flow through the openings and thus advantageously cancel out any air flowing in the bypass path. As a result, dust and debris entering the chamber via the air inlet will eventually contact the disc member and be transported towards the inner wall of the chamber by the centrifugal force caused by the rotating disc member. Advantageously, this will improve the particle separation performance of the dust separator, while reducing the energy required to rotate the shaft, compared to solutions, for example, using an annular flange to seal the bypass path.
In an embodiment, the top section of the dust separation chamber is removably attached to the main body of the chamber.
In a further embodiment, the air inlet and the air outlet are arranged such that the air flow entering the air inlet is substantially perpendicular to the air flow leaving the dust separation chamber via the air outlet.
In another embodiment, the air outlet is aligned with a longitudinal axis of the dust separation chamber, the longitudinal axis extending at the centre of the plurality of disc members.
In yet another embodiment, the dust separator further comprises a motor arranged to be connected with the shaft to rotate the shaft and the disc members.
In yet another embodiment, the shaft is arranged to extend longitudinally within the air outlet.
In an embodiment, the dust separator further comprises at least one bearing arranged to surround the shaft and further arranged to be held in place by a bearing support attached to an inner wall of the air outlet.
In yet another embodiment, the dust separator further comprises a further air inlet arranged along the periphery of the shaft in the air outlet and terminating at the bearing, air advantageously entering via the further air inlet for cleaning the bearing.
In general, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a/an/the element, device, component, means, step, etc" are to be interpreted openly as referring to at least one instance of the element, device, component, means, step, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 illustrates a cross-sectional view of a dust separator according to an embodiment;
fig. 2 illustrates a vacuum cleaner in a perspective view, in which a dust separator according to an embodiment may be implemented;
FIG. 3 illustrates a cross-sectional view of an upright vacuum cleaner of the type shown in FIG. 2, in which a dust separator according to an embodiment is implemented;
FIG. 4a illustrates a cross-sectional view of a dust separator according to another embodiment;
FIG. 4b shows the dust separator of FIG. 4a with the top section removed;
FIG. 5 illustrates a top view of the dust separator of FIG. 4 a;
FIG. 6 illustrates a cross-sectional view of a dust separator according to a further embodiment; and
fig. 7 shows a top view of the dust separator of fig. 6.
Detailed Description
The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which certain embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like reference numerals refer to like elements throughout the specification.
Fig. 1 shows a cross-sectional view of a dust separator 10 according to an embodiment, to be implemented in an appliance for cleaning an airflow, such as a vacuum cleaner or an air cleaner.
It should be noted that the dust separator 10 may be part of a separation system comprising, for example, a cyclonic pre-separator for separating larger particles before the airflow to be cleaned passes through a mesh filter and enters the dust separator 10. Further, one or more post-filters may be used after the dust separator 10. However, hereinafter, the dust separator 10 will be discussed.
By providing a dust separator 10 according to embodiments, the dust separation will advantageously be improved, and the filter(s) located downstream of the dust separator 10 will not be clogged, and the user will therefore not need to manually clean these filters.
The dust separator 10 comprises a dust separating chamber 11 having an air inlet 12 from which the airflow to be cleaned enters the dust separating chamber 11, and an air outlet 13 from which the cleaned airflow exits the dust separating chamber 11.
Further, the dust separator 10 comprises a shaft 14 arranged along a longitudinal axis of the dust separation chamber 11; and a plurality of spaced apart disc members 15 arranged along the shaft 14.
The shaft 14 is typically rotated by a motor (not shown) which in turn rotates the disc members 15 to generate centrifugal forces which transport particles (i.e. dust and debris) contained in the airflow entering the air inlet 12 towards the inner walls of the dust separation chamber 11, whilst causing the airflow to travel towards the centre of the spaced disc members 15 for travel in an upward direction along the shaft 14 towards the air outlet 13 to exit the dust separation chamber 11.
Smaller particles will follow the airflow between the disc members, but due to the high G-forces caused by the rotation, the smaller particles will move towards the periphery of the disc members and will then be centrifuged out of the disc members.
Thus, the centrifugal force generated by the rotating disc members 15 will cause the cleaned air to exit from the air outlet 13 aligned with the centre of the spaced disc members 15, whilst the dust and debris collide with the inner wall of the dust separation chamber 11 and fall by gravity towards the bottom section of the chamber 11.
The dust separator 10 shown in FIG. 1 is commonly referred to as a disk stack separator, a disk bowl centrifuge, or a cone plate centrifuge.
Advantageously, the inventors have found that the disc separator 10 illustrated with reference to fig. 1 is more energy efficient and further smaller in size than a cyclone separator for achieving the same separation performance.
Fig. 2 shows the vacuum cleaner 1 in a perspective view, in which the dust separator 10 according to the embodiment can be implemented. This particular type of vacuum cleaner is known as an upright cleaner or a stick cleaner. The vacuum cleaner may be powered by a rechargeable battery, an electrical cable, or a combination of both.
The vacuum cleaner 1 comprises a housing 2. The housing 2 may be formed as a hollow body or structure for accommodating parts of the vacuum cleaner 1, such as the dust separator of fig. 1.
The housing 2 may comprise a motor fan for generating an air flow. An exemplary airflow and an exemplary motor fan are shown in fig. 3. The housing 2 further comprises an air outlet 13 of the dust separator and a housing air inlet, also illustrated in fig. 3.
The vacuum cleaner 1 further comprises a profile 3 to which the housing 2 is attached. The profile 3 may be telescopic, so that the length of the profile 3 may be adjusted.
The profile 3 extends between a suction nozzle 4 at one end and a handle 5 at the other end for gripping by a user for moving the vacuum cleaner over a surface to be cleaned. The handle 5 may optionally comprise control means 51, such as a button or a slider bar, for controlling at least one of the fan effect, the nozzle function, or any other vacuum cleaner function (which may need to be adjustable).
Fig. 3 shows a sectional view of an upright vacuum cleaner 1 of the type shown in fig. 2, wherein the dust separator 10 according to the embodiment in the housing 2 is implemented. The housing 2 comprises a motor fan 7 for generating an air flow and may further comprise one or more filters 8.
Further, a dust separation chamber 11 of the dust separator 10 is arranged within the housing 2, and an air inlet 12 of the chamber 11 is in fluid communication with the interior of the profile 3. The motor fan 7 is able to establish a negative pressure, thereby causing an air flow 21 from the air inlet 22 at the suction nozzle 4 via the housing air inlet 12 in the opening of the profile to the housing air outlet 13.
The shaft 14 and the plurality of disc members 15 of fig. 1 are not shown in fig. 3, but it will be appreciated that a motor, such as the motor of the fan 7, rotates the shaft and that therefore a disc member as already described with reference to fig. 1 serves to separate debris and dust from the airflow 21 entering the air inlet 12, wherein the cleaned airflow enters the dust separation chamber 11 via the air outlet 13.
Fig. 4a shows a cross-sectional view of a dust separator 10 according to another embodiment.
As illustrated in fig. 4a, in the section of the dust separation chamber 11 where the rotating disc member 15 faces the (static) air outlet 13, there will be a small gap and due to the pressure difference of the disc member in the radial direction there will be a bypass path 16a, 16b where uncleaned air will flow without contacting the disc member 15 and eventually reach the air outlet 13 where the uncleaned air leaves the chamber 11 uncleaned.
It should be noted that the amount of uncleaned air flowing through the bypass paths 16a, 16b is small compared to the total volume of air entering the air inlet 12. However, it is not desirable to bypass uncleaned air.
Now, in prior art disc stack separators, this problem has been solved by sealing the gaps to close the bypass paths 16a, 16b, for example by means of an annular flange (not shown) attached to the interior of the top section of the chamber 11, extending towards and in contact with the upper member of the disc member 15, thereby preventing uncleaned air from flowing along the bypass paths 16a, 16b and exiting the chamber 11.
However, such an annular flange will generate friction against the upper member of the rotating disc member 15 in contact therewith, and will therefore require an increase in the energy consumption of the motor rotating the shaft 14. Conversely, if such an annular flange were arranged so that it did not contact the upper member of the disc member 15, there would still be a small gap in which dirty air would bypass the disc member 15.
In an embodiment, to solve this problem, the dust separation chamber 11 is arranged with one or more openings 17a, 17b in a top section of the disc member 15 of the chamber 11 facing the air outlet 13. It is noted that the top section of the chamber 11, in which the openings 16a, 16b are arranged, is removably arranged to the body of the chamber 11, as can be seen in fig. 4b, in which the top section is removed from the body for emptying the dust separation chamber 11.
In the vacuum cleaner 1, the dust separator 10 is at a negative pressure with respect to the atmosphere, which negative pressure is generated by the motor fan 7 illustrated in fig. 3. This has the effect of: air will flow through the openings 17a, 17b and thus any air flowing in the bypass paths 16a, 16b is advantageously counteracted. As a result, dust and debris entering the chamber 11 via the air inlet 11 will eventually contact the disc member 15 and be transported towards the inner wall of the chamber 11 by the centrifugal force caused by the rotating disc member 15. Advantageously, this will improve the particle separation performance of the dust separator 10, while reducing the energy required to rotate the shaft 14. Air may be supplied from the outlet of the fan 7 through the openings 17a, 17 b. It is contemplated that the flow of gas applied to flow through openings 17a, 17b may be controlled by a device such as a valve (not shown).
Fig. 5 shows a top view of the dust separator 10 of fig. 4 with a cylindrical dust separation chamber 11, wherein the shaft 14 extends longitudinally within the air outlet 13. In the present specific exemplary embodiment, four openings 17a, 17b, 17c, 17d are annularly arranged in the section of the chamber 11 in which the air outlet 13 is arranged.
It should be noted that the dust separator may have a different structure from that shown in the drawings. For example, the air outlet 11 may alternatively be arranged at a bottom section of the dust separation chamber 11.
Fig. 6 illustrates a cross-sectional view of the dust separator 10 according to a further embodiment, and fig. 7 illustrates a top view of the dust separator 10 of fig. 6.
In order to rotate the shaft 14 with the minimum possible energy required by the motor to rotate the shaft 14, at least one bearing 18 is arranged around the shaft 14, which bearing 18 is held in place by a bearing support 19 attached to the inner wall of the air outlet 13.
Since the bearing 18 operates in a dusty environment, particles will adhere to the bearing 18 and the ability of the bearing 18 to slide freely will be impeded by dirt.
To address this problem, the dust separator 10 will be configured to include a further air inlet 20 arranged along the periphery of the shaft 14 within the air outlet 13 and terminating in a bearing 18. A small amount of air will enter the further air inlet 20 to clean the bearing 18, i.e. to remove any dust and debris adhering to the bearing 18.
Even if no bearing(s) are used, a further air inlet 20 arranged along the periphery of the shaft 14 within the air outlet 13 is advantageous, for example air may enter the further air inlet 20 in order to counteract any particles leaving the dust separation chamber 11 via the outlet 14 (which may enter one or more motors located downstream of the chamber 11).
It should be noted that even though the openings 17a to 17d are shown in fig. 6 and 7, the dust separator 10 implementing the further air inlet 20 does not necessarily comprise the openings 17a to 17 d.
The invention has mainly been described above with reference to a few embodiments. However, as is readily appreciated by a person skilled in the art, other embodiments than the ones disclosed above are equally possible within the scope of the invention, as defined by the appended patent claims.
Claims (14)
1. An appliance (1) configured to clean an airflow, the appliance comprising a dust separator (10), the dust separator (10) comprising:
a dust separation chamber (11) comprising:
an air inlet (12) from which an air flow to be cleaned enters the dust separation chamber (11);
an air outlet (13) from which a cleaned airflow exits the dust separation chamber (11);
a shaft (14) arranged along a longitudinal axis of the dust separation chamber (11); and
a plurality of spaced apart disc members (15) arranged along the shaft (14), the shaft (14) being arranged to rotate the disc members (15) to generate a centrifugal force which transports particles contained in the airflow entering the air inlet (12) towards the inner wall of the dust separation chamber (11) whilst moving the airflow towards the centre of the spaced apart disc members (15) to travel towards the air outlet (13) and out of the dust separation chamber (11).
2. The appliance (1) of claim 1, the dust separation chamber (11) being arranged with at least one opening (17a-17d) in a section of one of the disc members (15) of the chamber (11) facing the air outlet (13), wherein air enters the dust separation chamber (11) via the at least one opening (17a-17d) so as to counteract an air flow flowing from the air inlet (12) to the air outlet (13) via a bypass path (16a, 16b) created between said one of the disc members (15) and said section.
3. The appliance (1) of claim 2, wherein the air enters the dust separation chamber (11) via the openings (17a-17d) by the dust separator (10) being at a negative pressure with respect to the atmosphere.
4. The appliance (1) of claim 3, further comprising:
a motor fan (7) which causes the negative pressure.
5. The appliance (1) of any one of claims 2 to 4, the at least one opening (17a-17d) being arranged in a top section of the dust separation chamber (11).
6. The appliance (1) of claim 5, a top section of the dust separation chamber (11) being removably attached to a body of the chamber (11).
7. The appliance of any one of the preceding claims, the air inlet (12) and the air outlet (13) being arranged such that the airflow entering the air inlet (12) is substantially perpendicular to the airflow exiting the dust separation chamber (11) via the air outlet (13).
8. The appliance (1) of any one of the preceding claims, the air outlet (13) being aligned with a longitudinal axis of the dust separation chamber (11), the longitudinal axis extending at the center of the plurality of disc members (15).
9. The appliance (1) of any one of the preceding claims, the dust separator (10) further comprising:
a motor arranged in connection with the shaft (14) to rotate the shaft (14) and the disc members (15).
10. The appliance (1) of any one of the preceding claims, the shaft (14) being arranged to extend longitudinally within the air outlet (13).
11. The appliance (1) of any one of the preceding claims, the dust separator (10) further comprising:
at least one bearing (18) arranged around the shaft (14) and further arranged to be held in place by a bearing support (19) attached to an inner wall of the air outlet (13).
12. The appliance (1) of claim 11, the dust separator (10) further comprising:
a further air inlet (20) arranged along the periphery of the shaft (14) within the air outlet (13) and terminating at the bearing (18), air entering via the further air inlet to clean the bearing (18).
13. The appliance (1) of any one of claims 1 to 10, the dust separator (10) further comprising:
a further air inlet (20) arranged along the periphery of the shaft (14) within the air outlet (13) through which air enters to counteract any particles exiting the dust separation chamber (11).
14. The appliance (1) of any of the preceding claims, which is a vacuum cleaner or an air cleaner.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2017/084098 WO2019120544A1 (en) | 2017-12-21 | 2017-12-21 | Air-cleaning appliance comprising disc stack separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111417332A true CN111417332A (en) | 2020-07-14 |
| CN111417332B CN111417332B (en) | 2022-03-11 |
Family
ID=60957287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780097286.1A Active CN111417332B (en) | 2017-12-21 | 2017-12-21 | Air cleaning appliance comprising a disc stack separator |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3727119A1 (en) |
| CN (1) | CN111417332B (en) |
| WO (1) | WO2019120544A1 (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH444638A (en) * | 1965-02-13 | 1967-09-30 | Siemens Elektrogeraete Gmbh | Device for generating a rotary flow for the purpose of separating foreign bodies suspended in the flow |
| US5229014A (en) * | 1991-12-18 | 1993-07-20 | Vortech International, Inc. | High efficiency centrifugal separation apparatus and method using impeller |
| CN2366191Y (en) * | 1999-04-06 | 2000-03-01 | 柏智勇 | Vortex flow type layered sieving separator |
| CN101954317A (en) * | 2010-10-22 | 2011-01-26 | 华中科技大学 | Radial spray regular cyclone separator |
| CN102821866A (en) * | 2010-04-09 | 2012-12-12 | 阿尔法拉瓦尔股份有限公司 | Centrifugal separator |
| CN204862986U (en) * | 2015-07-30 | 2015-12-16 | 博世电动工具（中国）有限公司 | Cyclone type duster |
| CN106238232A (en) * | 2016-09-21 | 2016-12-21 | 广东石油化工学院 | The cyclone separator bored with rotary blade and anti-back-mixing |
| CN106975576A (en) * | 2017-02-24 | 2017-07-25 | 宁波神通模塑有限公司 | A kind of adjustable cyclonic separator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2476505A1 (en) * | 1980-02-21 | 1981-08-28 | Ermap | Dust removal appts. for cleaning gases - comprising rotating filter basket inside chimney with cyclone action |
| EP2735351B1 (en) * | 2012-11-23 | 2014-12-31 | Alfa Laval Corporate AB | Centrifugal separator for separating particles from a gas stream |
| CN204122264U (en) * | 2014-08-21 | 2015-01-28 | 山东科技大学 | A kind of cyclone of self-driven screw unloading |
-
2017
- 2017-12-21 CN CN201780097286.1A patent/CN111417332B/en active Active
- 2017-12-21 EP EP17828904.7A patent/EP3727119A1/en active Pending
- 2017-12-21 WO PCT/EP2017/084098 patent/WO2019120544A1/en unknown
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH444638A (en) * | 1965-02-13 | 1967-09-30 | Siemens Elektrogeraete Gmbh | Device for generating a rotary flow for the purpose of separating foreign bodies suspended in the flow |
| US5229014A (en) * | 1991-12-18 | 1993-07-20 | Vortech International, Inc. | High efficiency centrifugal separation apparatus and method using impeller |
| CN2366191Y (en) * | 1999-04-06 | 2000-03-01 | 柏智勇 | Vortex flow type layered sieving separator |
| CN102821866A (en) * | 2010-04-09 | 2012-12-12 | 阿尔法拉瓦尔股份有限公司 | Centrifugal separator |
| CN101954317A (en) * | 2010-10-22 | 2011-01-26 | 华中科技大学 | Radial spray regular cyclone separator |
| CN204862986U (en) * | 2015-07-30 | 2015-12-16 | 博世电动工具（中国）有限公司 | Cyclone type duster |
| CN106238232A (en) * | 2016-09-21 | 2016-12-21 | 广东石油化工学院 | The cyclone separator bored with rotary blade and anti-back-mixing |
| CN106975576A (en) * | 2017-02-24 | 2017-07-25 | 宁波神通模塑有限公司 | A kind of adjustable cyclonic separator |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3727119A1 (en) | 2020-10-28 |
| CN111417332B (en) | 2022-03-11 |
| WO2019120544A1 (en) | 2019-06-27 |
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