GB2483513A - Vacuum cleaner cyclone - Google Patents
Vacuum cleaner cyclone Download PDFInfo
- Publication number
- GB2483513A GB2483513A GB1015200.7A GB201015200A GB2483513A GB 2483513 A GB2483513 A GB 2483513A GB 201015200 A GB201015200 A GB 201015200A GB 2483513 A GB2483513 A GB 2483513A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- disc
- vacuum cleaner
- annular space
- filter screen
- 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.)
- Withdrawn
Links
- 239000010419 fine particle Substances 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000002245 particle Substances 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Classifications
-
- 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
- A47L9/1616—Multiple arrangement thereof
- A47L9/1625—Multiple arrangement thereof for series flow
-
- 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
-
- 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
- A47L9/1616—Multiple arrangement thereof
-
- 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
- A47L9/1658—Construction of outlets
-
- 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
- A47L9/1658—Construction of outlets
- A47L9/1666—Construction of outlets with filtering means
-
- 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
- A47L9/1683—Dust collecting chambers; Dust collecting receptacles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cyclones (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
Abstract
A vacuum cleaner cyclone includes a chamber having a cylindrical outer wall 11, an entry port 12 extending tangentially of the outer wall 11 into the chamber so that air entering the chamber via the entry port 12 induces a cyclonic airflow within the chamber. An exit passage 14 at an upper portion of the chamber is spaced radially inward of the outer wall 11. A first disc 17 is situated below the exit passage and includes a filter screen. A second disc 19 is concentric with and spaced above the first disc 17 to define an annular space 21 having a circumferential return passage via which fine particles having passed into the annular space 21 via the filter screen can return to the chamber. The annular space 21 between the first and second discs 17, 19 may converge toward the circumferential return passage.
Description
Vacuum Cleaner Cyclone
Background of the Invention
The present invention relates to cyclonic chambers for vacuum cleaners. The invention more particularly, although not exclusively, relates to a first stage cyclonic chamber having improved efficiency, whereby fine particles are recirculated into the air stream for more efficient particle separation.
Known primary cyclonic vacuum chambers have a cylindrical chamber with a tangential inlet port. A disc is placed below the inlet port to block the upward flow of lighter particles and direct them around the disc through perforations or a filter medium. The latter become blocked with fine particles thereby reducing the suction efficiency of the vacuum cleaner.
Object of the Invention It is an object of the present invention to overcome or substantially ameliorate the above disadvantage and/or more generally to provide a first stage cyclonic chamber having improved particle separation efficiency.
Disclosure of the Invention
There is disclosed herein a vacuum cleaner cyclone, comprising: a chamber having a substantially cylindrical outer wall; an entry port extending substantially tangentially of the outer wall into the chamber so that air entering the chamber via the entry port induces a cyclonic airflow within the chamber; an exit passage at an upper portion of the chamber and spaced radially inward of the outer wall; a first disc situated below the exit passage and including a filter screen; and a second disc concentric with and spaced above the first disc to define an annular space between the first and second discs, which annular space has a circumferential return passage via which fine particles having passed into the annular space via the filter screen can return to the chamber.
Preferably, the annular space between the first and second discs converges toward the circumferential return passage.
Preferably, the first disc has a downwardly depending first peripheral lip.
Preferably, the second disc has a downwardly depending second peripheral lip.
Preferably, the circumferential return passage is situated substantially between the first and second peripheral lips.
Preferably, the exit passage includes a filter screen.
Definition As used herein the term "filter screen" is intended to encompass filtration elements such as but not limited to mesh, filter paper, gauze, or perforated sheet such as plastics or metal for example. A "fine filter screen" is a filter screen with smaller apertures or interstices.
Brief Description of the Drawings
A preferred form of the present invention will now be described by way of example with reference to Fig. 1 which is a schematic cross-sectional elevation of a vacuum cleaner cyclone.
Description of the Preferred Embodiment
In the accompanying drawing there is depicted schematically a vacuum cleaner cyclone 10. The cyclone comprises a primary chamber defined predominantly by a substantially cylindrical wall 11. Positioned radially inward of the cylindrical wall 11 is another wall having an exit passage 14 across which a filter screen is situated. This filter screen stops the passage of larger dust particles so that they fall therefrom back into the chamber. An annulus 13 is defined between the exit passage 14 and the cylindrical wall 11.
A tangential inlet or entry port 12 extends to the cylindrical wall 11 50 that air entering the annulus 13 instigates a cyclonic flow therein. A vacuum pump would be connected downstream of a main exit port 23 to induce this airflow.
Downstream/internally of the exit passage 14 are secondary cleaning stages 16 which are not important to the present invention and will not be described.
A first (lower) disc 17 is positioned below the exit passage 14 and includes a fine filter screen. Outhoard of the fine filter screen is a downwardly depending peripheral lip 18.
A second (upper) disc 19 is positioned above the first disc 17 and has a conical shape which together with the first disc defines a tapered annular space 21. The outer circumference of the second disc 19 is also provided with a downwardly depending peripheral lip 20. Moreover, the annular space 21 takes the form of an outwardly converging venturi having a narrow circumferential return passage defined between the peripheral lips 18 and 20.
Dirt-laden air enters the annulus 13 via the entry port 12 and spins along the inner side of the cylindrical wall 11. Heavier particles fall to a containment area 15 at the bottom of the chamber. The lighter particles in the air flow at the bottom part of the chamber consisting of hair, carpet fibres and dust follow a path which tends to converge toward the centre and migrate vertically upward.
The particle-laden air that moves vertically upward meets the first disc 17. Here the fine filter screen holds the majority of the larger particles as well as fibres, hair and such like. Finer particles pass upwardly through the fine filter screen into the annular space 21 whereupon they encounter the bottom surface of the upper disc 19.
Downward airflow past the return passage 22 induces outward migration of the fine particles by suction from the annular space 21. Due to the outwardly convergent nature of the annular space 21 which is somewhat like a venturi, the particles accelerate outwardly toward the return passage 22 whereupon they are returned to the chamber. The lighter portion of this particulate material is drawn upward to the exit passage 14, but the heavier portion is returned to the bottom of the chamber due to the downward airflow. These are particles which
in the prior art would be drawn directly into the
secondary cleaning stages.
It should be appreciated that modifications and alterations obvious to those skilled in the art are not to be considered as beyond the scope of the present invention. For example, the inlet port 12 might be situated below the exit passage 14.
Claims (7)
- CLAIMS: 1. A vacuum cleaner cyclone, comprising: a chamber having a substantially cylindrical outer wall; an entry port extending substantially tangentially of the outer wall into the chamber so that air entering the chamber via the entry port induces a cyclonic airflow within the chamber; an exit passage at an upper portion of the chamber and spaced radially inward of the outer wall; a first disc situated below the exit passage and including a filter screen; and a second disc concentric with and spaced above the first disc to define an annular space between the first and second discs, which annular space has a circumferential return passage via which fine particles having passed into the annular space via the filter screen can return to the chamber.
- 2. The vacuum cleaner cyclone of Claim 1, wherein the annular space between the first and second discs converges toward the circumferential return passage.
- 3. The vacuum cleaner cyclone of Claim 1 or 2, wherein the first disc has a downwardly depending first peripheral lip.
- 4. The vacuum cleaner cyclone of Claim 3, wherein the second disc has a downwardly depending second peripheral lip.
- 5. The vacuum cleaner cyclone of Claim 4, wherein the circumferential return passage is situated substantially between the first and second peripheral lips.
- 6. The vacuum cleaner cyclone of any preceding Claim, wherein the exit passage includes a filter screen.
- 7. A vacuum cleaner cyclone constructed substantially as hereinbefore described with reference to the accompanying drawing.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1015200.7A GB2483513A (en) | 2010-09-13 | 2010-09-13 | Vacuum cleaner cyclone |
CN2011100430468A CN102397036A (en) | 2010-09-13 | 2011-02-18 | Vacuum cleaner cyclone |
CN2011200449116U CN202113008U (en) | 2010-09-13 | 2011-02-18 | Swirler of vacuum cleaner |
PCT/CN2011/079560 WO2012034508A1 (en) | 2010-09-13 | 2011-09-13 | Vacuum cleaner cyclone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1015200.7A GB2483513A (en) | 2010-09-13 | 2010-09-13 | Vacuum cleaner cyclone |
Publications (2)
Publication Number | Publication Date |
---|---|
GB201015200D0 GB201015200D0 (en) | 2010-10-27 |
GB2483513A true GB2483513A (en) | 2012-03-14 |
Family
ID=43065079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1015200.7A Withdrawn GB2483513A (en) | 2010-09-13 | 2010-09-13 | Vacuum cleaner cyclone |
Country Status (3)
Country | Link |
---|---|
CN (2) | CN102397036A (en) |
GB (1) | GB2483513A (en) |
WO (1) | WO2012034508A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015150145A (en) * | 2014-02-13 | 2015-08-24 | 三菱電機株式会社 | Cyclone separator and vacuum cleaner |
JP2016013262A (en) * | 2014-07-02 | 2016-01-28 | 日立アプライアンス株式会社 | Vacuum cleaner |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2483513A (en) * | 2010-09-13 | 2012-03-14 | Chunju Electric Hk Ltd | Vacuum cleaner cyclone |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011105562A1 (en) * | 2010-02-26 | 2011-09-01 | 株式会社東芝 | Dust separating/dust collecting container and electric cleaner |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2367511B (en) * | 2000-07-06 | 2003-12-17 | John Herbert North | Improved dust/particle collecting arrangement for cyclone separators |
EP1516574A3 (en) * | 2000-07-06 | 2005-03-30 | John Herbert North | Improved air/particle separator |
GB2407784A (en) * | 2003-11-08 | 2005-05-11 | Dyson Ltd | Separating apparatus |
CN1751800A (en) * | 2005-09-20 | 2006-03-29 | 泰怡凯电器(苏州)有限公司 | Cyclone separator |
CN100577081C (en) * | 2005-10-09 | 2010-01-06 | 泰怡凯电器(苏州)有限公司 | Cyclone separation device of dust collector |
US7691161B2 (en) * | 2008-01-31 | 2010-04-06 | Samsung Gwangju Electronics Co., Ltd. | Cyclone dust-collecting apparatus |
GB2483513A (en) * | 2010-09-13 | 2012-03-14 | Chunju Electric Hk Ltd | Vacuum cleaner cyclone |
-
2010
- 2010-09-13 GB GB1015200.7A patent/GB2483513A/en not_active Withdrawn
-
2011
- 2011-02-18 CN CN2011100430468A patent/CN102397036A/en active Pending
- 2011-02-18 CN CN2011200449116U patent/CN202113008U/en not_active Expired - Fee Related
- 2011-09-13 WO PCT/CN2011/079560 patent/WO2012034508A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011105562A1 (en) * | 2010-02-26 | 2011-09-01 | 株式会社東芝 | Dust separating/dust collecting container and electric cleaner |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015150145A (en) * | 2014-02-13 | 2015-08-24 | 三菱電機株式会社 | Cyclone separator and vacuum cleaner |
JP2016013262A (en) * | 2014-07-02 | 2016-01-28 | 日立アプライアンス株式会社 | Vacuum cleaner |
Also Published As
Publication number | Publication date |
---|---|
CN102397036A (en) | 2012-04-04 |
GB201015200D0 (en) | 2010-10-27 |
CN202113008U (en) | 2012-01-18 |
WO2012034508A1 (en) | 2012-03-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |