GB2424606A - Cyclonic dust-separating apparatus - Google Patents

Cyclonic dust-separating apparatus Download PDF

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Publication number
GB2424606A
GB2424606A GB0602219A GB0602219A GB2424606A GB 2424606 A GB2424606 A GB 2424606A GB 0602219 A GB0602219 A GB 0602219A GB 0602219 A GB0602219 A GB 0602219A GB 2424606 A GB2424606 A GB 2424606A
Authority
GB
United Kingdom
Prior art keywords
cyclone
cyclone chamber
chambers
dust
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB0602219A
Other versions
GB0602219D0 (en
GB2424606B (en
GB2424606C (en
Inventor
Jang-Keun Oh
Min-Ha Kim
Jung-Gyun Han
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Gwangju Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority claimed from KR1020050038738A external-priority patent/KR100622550B1/en
Application filed by Samsung Gwangju Electronics Co Ltd filed Critical Samsung Gwangju Electronics Co Ltd
Publication of GB0602219D0 publication Critical patent/GB0602219D0/en
Publication of GB2424606A publication Critical patent/GB2424606A/en
Publication of GB2424606B publication Critical patent/GB2424606B/en
Application granted granted Critical
Publication of GB2424606C publication Critical patent/GB2424606C/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • 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
    • B04C5/24—Multiple arrangement thereof
    • B04C5/26—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
    • 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
    • A47L9/1616—Multiple arrangement thereof
    • A47L9/1641—Multiple arrangement thereof for parallel flow
    • 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
    • B04C5/24—Multiple arrangement thereof

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Abstract

A cyclonic dust-separating apparatus 200 has a first cyclone chamber 310 for separating large dust particles from drawn-in, dust-carrying air by centrifugal force, one or more second cyclone chambers 320 for separating dust particles from the air discharged from the first cyclone chamber by centrifugal force, and one or more third cyclone chambers 30 for separating dust particles from the air discharged from the second cyclone chambers, and causing the air to be discharged out via a discharge passage 231. The second and third cyclone chambers 320, 330 around the first cyclone chamber 310. Therefore, the cyclonic dust-separating apparatus 200 provides multi-stage centrifugal cleaning, and improved cleaning efficiency, while remaining compact. An associated vacuum cleaner is also disclosed.

Description

Cyclonic Dust-Separating Apparatus This invention relates to a cyclonic
dust-separating apparatus for a vacuum cleaner, and to a vacuum cleaner having the same.
Generally, a cyclonic dust-separating apparatus spins drawn-in air, thereby separating dust and contaminants (hereinafter referred to as "dust") from the drawn-in air using the centrifugal force generated by the spinning air. In other words, the cyclonic dust- separating apparatus is a centrifuge device which uses centrifugal force to separate dust from the drawn-in air.
A cyclonic dust-separating apparatus includes a cyclone chamber in which the drawn-in air is rotated. The cyclone chamber is sized to suit the dust to be removed, and generally a cyclonic dust-separating apparatus has a single cyclone chamber. Accordingly, a conventional cyclonic dustseparating device can only separate dust particles that are large enough to be handled by the structure of the cyclone chamber.
Such a limited cleaning operation is disadvantageous, especially for a cyclonic dust- separating apparatus of a vacuum cleaner, which is required to separate almost every dust particle regardless of size. The conventional cyclonic dust separating apparatus is particularly poor at removing fine dust particles. In order to solve this problem, studies have recently been carried out to develop a cyclonic dust-separating apparatus that has a plurality of cyclone chambers for separating dust in multiple stages. The problem of this approach is that, as the number of cyclone chambers increases to satisfr the desired dust separation efficiency, the overall size of the apparatus increases and its structure is complicated, which is obviously not beneficial for use in a vacuum cleaner.
An aim of the invention is to provide a cyclonic dust-separating apparatus that is compact whilst providing improved dust separation efficiency.
The present invention provides a cyclonic dust-separating apparatus for separating dust particles from drawn-in air, the apparatus comprising: a first cyclone chamber for separating first dust particles from the air by centrifugal force; at least one second cyclone chamber for separating second dust particles from the air discharged from the first cyclone chamber by centrifugal force; and at least one third cyclone chamber for separating third dust particles from the air discharged from the or each second cyclone chamber, and for discharging air from the apparatus via a discharge passage, wherein the or each second cyclone chamber and the or each third cyclone chamber are arranged along the outer periphery of the first cyclone chamber.
Accordingly, this multi-stage cyclonic dust-separating apparatus can improve cleaning efficiency while remaining compact.
The or each second cyclone chamber may have an inner diameter smaller than that of the first cyclone chamber and larger than that of the or each third cyclone chamber.
Preferably, there are a plurality of second cyclone chambers and a plurality of third cyclone chambers, and wherein each third cyclone chamber comprise two or more cyclone chambers which communicate with the outlet of a respective second cyclone chamber.
Advantageously, the cyclone chambers of each third cyclone chamber are arranged between a respective pair of second cyclone chambers such that the second cyclone chambers and the cyclone chambers constituting the third cyclone chambers are arranged in a circle around the first cyclone chamber. Preferably, the cyclone chambers constituting each third cyclone chamber communicate with the outlet of a respective second cyclone chamber, and the cyclone chambers constituting each third cyclone chamber are positioned in mirror- symmetrical relation with respect to the outlet of the respective second cyclone chamber.
Conveniently, the first to third cyclone chambers are formed independently from each other.
As the air flowing into the respective cyclone chambers is provided with spaces for whirling currents, the dust separation efficiency can be far more improved in comparison with the structure where the cyclone chambers are superimposed.
In a preferred embodiment, the apparatus further comprises a cyclone body provided with an inlet through which drawn-in air is guided to the first to third cyclone chambers; a first cover provided with a discharge passage, and covering the upper end of the cyclone body which is open; and a second cover located between the first cover and the cyclone body, wherein first, second and third passages are provided between the second cover and the cyclone body, each first passage connecting an outlet of the first cyclone chamber with the inlet of a respective second cyclone chamber, each second passage connecting the outlet of a respective second cyclone chamber with inlets of the associated third cyclone chambers, and each third passage guiding the air exiting from the third cyclone chambers towards the discharge passage.
Preferably, the second cover is provided with guide members for guiding air from the first cyclone chamber to the second cyclone chambers, each guide member having a first curved part and a second curved part formed by curving a part of the second cover, each guide member defining a respective first passage when the cyclone body is connected to the second cover; and wherein a respective hollow connecting pipe, which extends towards the upper side of the second cover, connects the outlet of each second cyclone chamber to the associated third cyclone chambers. The first, second and third passages can be formed at the same time by connecting the second cover with the cyclone body. Even when a plurality of cyclone chambers is formed, it is possible to prevent the complexity of the structure for the air flow.
Advantageously, the apparatus further comprises a dust receptacle detachably mounted to the lower end of the cyclone body which is open, for collecting dust particles separated in the first to third cyclone chambers, the dust receptacle comprising: a first collecting space, a second collecting space, and a partition located in the dust receptacle to separate the first collecting space from the second collecting space, wherein the arrangement is such that the first collecting space communicates with the first cyclone chamber, and the second collecting space communicates with the second and third cyclone chambers.
The invention also provides a vacuum cleaner comprising: an air suction port through which dust-carrying air is drawn in from a surface to be cleaned; a motor for generating a suction force at the air suction port; and a cyclonic dust-separating apparatus for separating dust from the drawn-in air, the cyclonic dust-separating apparatus comprising: a first cyclone chamber for separating dust particles from the air by centrifugal force, at least one second cyclone chamber for separating dust from the air discharged from the first cyclone chamber by centrifugal force; and at least one third cyclone chamber for separating dust from the air discharged from the or each second cyclone chamber by centrifugal force, wherein the or each second cyclone chamber has an inner diameter smaller than that of the first cyclone chamber and larger than that of the or each third cyclone chambers.
The invention will now be described in greater detail, by way of example, with reference to the drawings, in which: Figure 1 is a perspective view of a first form cyclonic dust-separating apparatus constructed according to the invention; Figure 2 is a view illustrating a vacuum cleaner incorporating the cyclonic dust-separating apparatus of Figure 1; Figure 3 is a exploded perspective view of the cyclonic dust-separating apparatus of Figure 1; Figure 4 is a sectional view illustrating the cyclonic dust-separating apparatus of Figure 3 in operation; and Figure 5 is a plan view illustrating the upper body part of a second form of cyclonic dustseparating apparatus constructed according to the invention.
In the following description, the same reference numerals are used to identify the same or similar elements in the different figures. The matters set forth in the description below, such as the detailed construction and method of operation, are only provided to assist in a comprehensive understanding of the invention, and should not be considered as limiting.
The present invention can be carried out without using some or all of those defmed elements. Well-known functions or constructions are not described in detail to avoid obscuring the invention in unnecessary detail.
Referring to the drawings, Figures 1 and 2 show a cyclonic dustseparating apparatus 200 mounted in a vacuum cleaner 100. The cyclonic dust-separating apparatus 200 includes a cyclone body 210 having an inlet 211 and an outlet 231, which are connected respectively to an air suction pipe 106 and an air discharge pipe 107 of the vacuum cleaner 100. When a drive motor (not shown) of the vacuum cleaner 100 is operated, dustcarrying air is drawn into the apparatus through a suction port (not shown) of a suction port assembly 105. The drawn-in air sequentially passes through the air suction pipe 106 into the inlet 211 so that the cyclonic dust-separating apparatus 200 can separate dust from the drawnin air by centrifugal operation, and discharges the cleaned air through the outlet 231 into the air discharge pipe 107, and hence to the outside of the vacuum cleaner.
Referring to Figures 3 and 4, the cyclonic dust-separating apparatus 200 includes a first cyclone chamber 310, at least one second cyclone chamber 320, and at least one third cyclone chamber 330. Accordingly, dust is separated from the drawn-in air in three stages, thereby leading to an improved dust separation efficiency.
The cyclonic dust-separating apparatus 200 actually includes one first cyclone chamber 310, and a plurality of second and third cyclone chambers 320 and 330.
When the motor is operated, the first cyclone chamber 310 separates large dust particles from the air drawn in from a surface to cleaned through the suction port. The first cyclone chamber 310 is positioned centrally in the cyclone body 210, which has both its upper and lower ends open. The entrance (not shown) of the first cyclone chamber 310 is connected to the inlet 211, which passes through the outer wall of the cyclone body 210. The inlet 211 is connected to the air suction pipe 106 (see Figure 2) such that the inlet guides the air into the first cyclone chamber 310 when the air is drawn in through the suction port. The lower end of the first cyclone chamber 310 is connected to a first collecting space 225 of a dust receptacle 220. The dust receptacle 220 is removably connected to the lower end of the cyclone body 210. Accordingly, as dust particles Dl are separated in the first cyclone chamber 310, they fall into the first collecting space 225 of the dust receptacle 220 under gravity. When the dust particles Dl are separated from the air, that air is discharged from the first cyclone chamber 310 through an outlet 319 by the operation of the motor. A grille 215 is mounted at the outlet 319 of the first cyclone chamber 310. The cleaned air from the first cyclone chamber 310 is cleaned again by the grille 215, further improving the dust-separation efficiency of the cyclonic dust-separating apparatus 200.
The dust receptacle 220 is provided with a partition 221 which divides the interior of the receptacle into a space for receiving the dust particles Dl separated in the first cyclone chamber 310 (i.e. in the first collecting space 225), and a space 227 for receiving dust particles D2 and D3 separated in the second and third cyclone chambers 320 and 330.
More specifically, the partition 221 divides the interior of the dust receptacle 220 into a first collecting space 225 for receiving the dust particles Dl separated in the first cyclone chamber 310, and a second collecting space 227 for receiving the dust particles D2 and D3 separated in the second and the third cyclone chambers 320 and 330. Thus, dispersion of fine dust particles D2 and D3 due to movement of the large dust particles Dl is prevented.
In addition, a backflow prevention member 223 protrudes from the bottom of the first collecting space 225 to control movement of the dust particles Dl, thereby to prevent those dust particles from leaving from the first collecting space 225 once it is full.
The second cyclone chambers 320 provide a second filtration of the air after it has been cleaned by, and flowed from, the first cyclone chamber 310. The second cyclone chambers 320 are formed along the circumference of the first cyclone chamber 310 of the cyclone body 210. The second cyclone chambers 320 have open upper and lower ends. The second cyclone chambers 320 are each frustoconical, progressively narrowing towards the lower ends thereof. The second cyclone chambers 320 are formed separately from the first cyclone chamber 310, and are positioned around the first cyclone chamber. The dust particles D2 separated in the second cyclone chambers 320 are collected in the second collecting space 227 of the dust receptacle 220. Although the cyclonic dust-separating apparatus 200 has three second cyclone chambers 320, this is only for exemplary purposes, and there is no limit to the number of second cyclone chambers, except that they should not overlap or interfere with the path of the inlet 211 to the first cyclone chamber 310.
However, the second cyclone chambers 320 should be arranged at predetermined intervals, in consideration of the other cyclone chambers such as the thfrd cyclone chambers 330 for example, which will be explained below.
The cyclonic dust-separating apparatus 200 includes respective first passages 350 which connect the outlet 319 of the first cyclone chamber 310 to respective entrances of the second cyclone chambers 320. Each first passage 350 is defined by a second cover 250 that is located between the cyclone body 210 and a first cover 230. The second cover 250 includes a respective first curved part 251 for each of the second cyclone chambers 320, each first curved part being defmed by a part of the second cover. Each first passage 350 is constituted by an inner space at the lower part of the respective first curved part 251 between the second cover 250 and the cyclone body 210. As the first passages 350 form part of the second cover 250 (which is located at the upper end of the cyclone body 210), the structure of the cyclonic dust-separating apparatus 200 can be simplified.
The third cyclone chambers 330 are provided to filter the air flowing in from the second cyclone chambers 320, so as to separate even smaller dust particles D3 from the air. For a higher separation efficiency, the third cyclone chambers 330 have a smaller size than the first and second cyclone chambers 320 and 330. In this particular embodiment, the second cyclone chambers 320 are smaller than the first cyclone chamber 310, and larger than the third cyclone chambers 330. Each of the third cyclone chambers 330 is of frustoconical shape, having a progressively narrowing diameter towards its lower end.
Each third cyclone chamber 330 has a first portion 331 extending into the cyclone body 210. Each first portion 331 is in fluid communication with a respective second portion 333 positioned within a respective second curved part 252 of the second cover 250. The second curved parts 252 are formed at the entrances of the first curved parts on the second cover 250.
The third cyclone chambers 330 are aligned with the second cyclone chambers 320. In particular, there are three second cyclone chambers 320 which communicate with one first cyclone chamber 310, and two third cyclone chambers 330 communicate with each of the second cyclone chambers. However, it will be understood that the arrangement of the second and third cyclone chambers 320 and 330 may vary according to needs. In this particular embodiment, each pair of third cyclone chambers 330 communicates with one second cyclone chamber 320, and are formed in mirror-symmetrical relation with respect to that second cyclone chamber. Accordingly, two third cyclone chambers 330 are associated with each second cyclone chamber 320, and the circumference of the first cyclone chamber 310 is surrounded by the second and third cyclone chambers.
As a result, at least three dust separation stages are provided, while the size of the cyclonic dust-separating apparatus 200 is not increased.
The dust-separating apparatus 200 includes second passages 360 to connect inlets 335 of the third cyclone chambers 330 with outlets 323 of the second cyclone chambers 320, and third passages 370 to guide air exiting from the third cyclone chambers. Each second passage 360 is formed as a Tshaped hollow connecting pipe 255 that protrudes from the upper side of the second cover 250. A respective air outlet 257 is provided at the upper end of each second curved part 252, and the third passages 370 are formed in the air outlets 257. The "cleaned" air exits from the third passages 370, and then leaves the cyclonic dust-separating apparatus 200 via the outlet 231 which passes through the upper end of the first cover 230. The first to third passages 350, 360, 370 provide simple connections between the first to third cyclone chambers 310, 320, 330. Therefore, the structure of the cyclonic dust-separating apparatus 200 can be simplified.
The operation of the cyclonic dust-separating apparatus 200 will now be described.
First, dust-carrying air is drawn-in from a surface to be cleaned through the suction port.
When the air is drawn into the first cyclone chamber 310 via the inlet 211, it is caused to whirl. Owing to the whirling current, relatively large dust particles Dl are separated in the first cyclone chamber 310, and fall into the first collecting space 225 of the dust receptacle 220 under gravity.
After the first separation of the dust particles Dl, the air is filtered again as it passes through the grille 215. The air flow is then branched towards the entrances 321 of the second cyclone chambers 320 via the first passages 350. As the air enters the second cyclone chambers 320, it circulates due to guide members 291 that are formed on a gasket 290 between the second cover 250 and the cyclone body 210. Owing to the vortices of the spinning air, dust particles D2 are separated from the air in the second cyclones 320 and fall into the second collecting space 227 of the dust-receptacle 220.
After the dust particles D2 are separated, the air exits from the second cyclone chambers 320 and branches towards the third cyclone chambers 330. The second passages 360 are formed such that the air exiting from each second cyclone chamber 320 is directed towards the associated pair of third cyclone chambers 330. The air again circulates in the third cyclone chambers 330, thus separating out relatively fine dust particles D3. The separated dust particles D3 fall into the second collecting space 227 of the dust receptacle 220; and the air, which has undergone at least three stages of cleaning by the first to third cyclone chambers 310, 320, 330 and the grille 215, passes through the third passages 370 and is discharged to the outside of the apparatus 200 through the outlet 231.
While the apparatus 200 has three stages of centrifugal cleaning, it will be understood that this is not limiting. Thus, such a cyclonic dustseparating apparatus may have a greater number of lower-stage cyclone chambers downstream from the first to third cyclone chambers. Figure 5 shows an example of a cyclone body 210' of such a modified apparatus which constitutes the second form of cyclonic dust-separating apparatus. This apparatus additionally includes fourth and fifth cyclone chambers 380 and 390. The first cyclone chamber 310 of the second form of cyclonic dust-separating apparatus is formed at the centre of the cyclone body 210', and the second and third cyclone chambers 320 and 330 are arranged at the same positions as explained above with reference to Figures 1 to 4.
The fourth and fifth cyclone chambers 380 and 390 are arranged between the second and third cyclone chambers 320 and 330, and each has an inner diameter smaller than that of the third cyclone chambers 330. With the fourth and fifth cyclone chambers 380 and 390, the cleaning efficiency of particularly light and fine dust particles can be increased.
Additionally, with the arrangement of the cyclone chambers, the second to fifth cyclone chambers 320, 330, 380, 390 are arranged in an annular pattern along the outer periphery of the first cyclone chamber 310. Therefore, the cyclonic dust-separating apparatus of this embodiment can have a larger number of cyclone chambers, and thus a further improved cleaning efficiency, while maintaining the size the same as that of the embodiment of Figures 1 to 4.
In the exemplary embodiments explained above, because dust particles can be separated in at least three stages, the cyclothc dust-separating apparatus has increased cleaning efficiency. Additionally, the second cyclone chambers surround the first cyclone chamber along the outer periphery of the apparatus, and the third cyclone chambers are arranged between the second cyclone chambers, again surrounding the first cyclone chamber. As a result, the cyclonic dust-separating apparatus can have a plurality of cyclone chambers; and, at the same time, can remain of compact size.
The foregoing embodiments and advantages are merely exemplary, and are not to be construed as limiting the present invention. The present teaching can be readily applied to other types of apparatus. Also, the description of the embodiments of the present invention is intended to be illustrative, and not to limit the scope of the claims, and many alternatives, modifications, and variations will be apparent to those skilled in the art.

Claims (12)

  1. CLAIMS: 1. A cyclonic dust-separating apparatus for separating dust
    particles from drawn- in air, the apparatus comprising: a first cyclone chamber for separating first dust particles from the air by centrifugal force; at least one second cyclone chamber for separating second dust particles from the air discharged from the first cyclone chamber by centrifugal force; and at least one third cyclone chamber for separating third dust particles from the air discharged from the or each second cyclone chamber, and for discharging air from the apparatus via a discharge passage, wherein the or each second cyclone chamber and the or each third cyclone chamber are arranged along the outer periphery of the first cyclone chamber.
  2. 2. Apparatus as claimed in claim 1, wherein the or each second cyclone chamber has an inner diameter smaller than that of the first cyclone chamber, and larger than that of the or each third cyclone chamber.
  3. 3. The cyclone dust separating apparatus of claim 2, wherein there are a plurality of second cyclone chambers and a plurality of third cyclone chambers, and wherein each third cyclone chamber comprise two or more cyclone chambers which communicate with the outlet of a respective second cyclone chamber.
  4. 4. Apparatus as claimed in claim 3, wherein the cyclone chambers of each third cyclone chamber are arranged between a respective pair of second cyclone chambers such that the second cyclone chambers and the cyclone chambers constituting the third cyclone chambers are arranged in a circle around the first cyclone chamber.
  5. 5. Apparatus as claimed in claim 4, wherein the cyclone chambers constituting each third cyclone chamber communicate with the outlet of a respective second cyclone chamber, and the cyclone chambers constituting each third cyclone chamber are positioned in mirror-symmetrical relation with respect to the outlet of the respective second cyclone chamber.
  6. 6. Apparatus as claimed in any one of claims 1 to 5, wherein the first to third cyclone chambers are formed independently from each other.
  7. 7. Apparatus as claimed in any one of claims 3 to 6, further comprising: a cyclone body provided with an inlet through which drawn-in air is guided to the first to third cyclone chambers; a first cover provided with a discharge passage, and covering the upper end of the cyclone body which is open; and a second cover located between the first cover and the cyclone body, wherein first, second and third passages are provided between the second cover and the cyclone body, each first passage connecting an outlet of the first cyclone chamber with the inlet of a respective second cyclone chamber, each second passage connecting the outlet of a respective second cyclone chamber with inlets of the associated third cyclone chambers, and each third passage guiding the air exiting from the third cyclone chambers towards the discharge passage.
  8. 8. Apparatus as claimed in claim 7, wherein the second cover is provided with guide members for guiding air from the first cyclone chamber to the second cyclone chambers, each guide member having a first curved part and a second curved part formed by curving a part of the second cover, each guide member defining a respective first passage when the cyclone body is connected to the second cover; and wherein a respective hollow connecting pipe, which extends towards the upper side of the second cover, connects the outlet of each second cyclone chamber to the associated third cyclone chambers.
  9. 9. Apparatus as claimed in claim 7 or claim 8, further comprising: a dust receptacle detachably mounted to the lower end of the cyclone body which is open, for collecting dust particles separated in the first to third cyclone chambers, the dust receptacle comprising: a first collecting space, a second collecting space, and a partition located in the dust receptacle to separate the first collecting space from the second collecting space, wherein the arrangement is such that the first collecting space communicates with the first cyclone chamber, and the second collecting space communicates with the second and third cyclone chambers.
  10. 10. A vacuum cleaner comprising: an air suction port through which dustcarrying air is drawn in from a surface to be cleaned; a motor for generating a suction force at the air suction port; and a cyclonic dustseparating apparatus for separating dust from the drawn-in air, the cyclonic dust-separating apparatus comprising: a first cyclone chamber for separating dust particles from the air by centrifugal force, at least one second cyclone chamber for separating dust from the air discharged from the first cyclone chamber by centrifugal force; and at least one third cyclone chamber for separating dust from the air discharged from the or each second cyclone chamber by centrifugal force, wherein the or each second cyclone chamber has an inner diameter smaller than that of the first cyclone chamber and larger than that of the or each third cyclone chambers.
  11. 11. A cyclonic dust-separating apparatus substantially as hereinbefore described with reference to Figures 1 to 4 or Figures 1 to 4 as modified by Figure 5 of the drawings.
  12. 12. A vacuum cleaner substantially as hereinbefore described with reference to Figures 1 to 4 or Figures 1 to 4 as modified by Figure 5 of the drawings.
GB0602219A 2005-03-29 2006-02-03 Cyclonic dust-separating apparatus. Expired - Fee Related GB2424606C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66594105P 2005-03-29 2005-03-29
KR1020050038738A KR100622550B1 (en) 2005-03-29 2005-05-10 Cyclone dust collecting device for vacuum cleaner and vacuum cleaner having the same

Publications (4)

Publication Number Publication Date
GB0602219D0 GB0602219D0 (en) 2006-03-15
GB2424606A true GB2424606A (en) 2006-10-04
GB2424606B GB2424606B (en) 2007-03-14
GB2424606C GB2424606C (en) 2010-12-01

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2426726B (en) * 2005-05-27 2008-11-05 Dyson Technology Ltd Cyclonic separating apparatus
GB2426473B (en) * 2005-05-27 2008-11-05 Dyson Technology Ltd Cyclonic separating apparatus
EP2052659A2 (en) 2007-10-23 2009-04-29 Hoover Limited Cyclonic separation apparatus
EP2231303A1 (en) * 2007-12-06 2010-09-29 Techtronic Floor Care Technology Limited Dual stage cyclonic dust collector
GB2492744A (en) * 2011-05-11 2013-01-16 Dyson Technology Ltd Multi-cyclonic surface treating appliance
US8707512B2 (en) 2011-05-11 2014-04-29 Dyson Technology Limited Surface treating appliance
US8707511B2 (en) 2011-05-11 2014-04-29 Dyson Technology Limited Surface treating appliance
US8806708B2 (en) 2011-05-11 2014-08-19 Dyson Technology Limited Surface treating appliance
US8826492B2 (en) 2011-05-11 2014-09-09 Dyson Technology Limited Surface treating appliance
US9044125B2 (en) 2011-05-11 2015-06-02 Dyson Technology Limited Surface treating appliance
US9204771B2 (en) 2011-05-11 2015-12-08 Dyson Technology Limited Surface treating appliance
US9282863B2 (en) 2011-05-11 2016-03-15 Dyson Technology Limited Surface treating appliance

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109173445A (en) * 2018-11-09 2019-01-11 潘兴旺 Whiz formula gas cleaner

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2372468A (en) * 2001-02-24 2002-08-28 Dyson Ltd Cyclonic separating apparatus
WO2003030702A2 (en) * 2001-10-12 2003-04-17 Arcelik A.S. Vacuum cleaner
GB2406064A (en) * 2003-09-08 2005-03-23 Samsung Kwangju Electronics Co Cyclonic separating apparatus
EP1563909A2 (en) * 2004-02-12 2005-08-17 Mann+Hummel Gmbh Cyclone separator
GB2410911A (en) * 2004-02-11 2005-08-17 Samsung Kwangju Electronics Co Cyclonic dust-collecting apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2372468A (en) * 2001-02-24 2002-08-28 Dyson Ltd Cyclonic separating apparatus
WO2003030702A2 (en) * 2001-10-12 2003-04-17 Arcelik A.S. Vacuum cleaner
GB2406064A (en) * 2003-09-08 2005-03-23 Samsung Kwangju Electronics Co Cyclonic separating apparatus
GB2410911A (en) * 2004-02-11 2005-08-17 Samsung Kwangju Electronics Co Cyclonic dust-collecting apparatus
EP1563909A2 (en) * 2004-02-12 2005-08-17 Mann+Hummel Gmbh Cyclone separator

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2426726B (en) * 2005-05-27 2008-11-05 Dyson Technology Ltd Cyclonic separating apparatus
GB2426473B (en) * 2005-05-27 2008-11-05 Dyson Technology Ltd Cyclonic separating apparatus
AU2009100933B4 (en) * 2005-05-27 2009-12-10 Dyson Technology Limited Cyclonic separating apparatus
US7828866B2 (en) 2005-05-27 2010-11-09 Dyson Technology Limited Dirt and dust cyclonic separating apparatus
US7867306B2 (en) 2005-05-27 2011-01-11 Dyson Technology Limited Multistage cyclonic separating apparatus
US8562705B2 (en) 2005-05-27 2013-10-22 Dyson Technology Limited Multistage cyclonic separating apparatus
EP2052659A2 (en) 2007-10-23 2009-04-29 Hoover Limited Cyclonic separation apparatus
US7976597B2 (en) 2007-10-23 2011-07-12 Hoover Limited Cyclonic separation apparatus
EP2231303A1 (en) * 2007-12-06 2010-09-29 Techtronic Floor Care Technology Limited Dual stage cyclonic dust collector
EP2231303A4 (en) * 2007-12-06 2014-06-11 Techtronic Floor Care Tech Ltd Dual stage cyclonic dust collector
US8707512B2 (en) 2011-05-11 2014-04-29 Dyson Technology Limited Surface treating appliance
US8707511B2 (en) 2011-05-11 2014-04-29 Dyson Technology Limited Surface treating appliance
GB2492744A (en) * 2011-05-11 2013-01-16 Dyson Technology Ltd Multi-cyclonic surface treating appliance
US8806708B2 (en) 2011-05-11 2014-08-19 Dyson Technology Limited Surface treating appliance
US8826492B2 (en) 2011-05-11 2014-09-09 Dyson Technology Limited Surface treating appliance
GB2492744B (en) * 2011-05-11 2014-12-24 Dyson Technology Ltd A multi-cyclonic surface treating appliance
US9044125B2 (en) 2011-05-11 2015-06-02 Dyson Technology Limited Surface treating appliance
US9044126B2 (en) 2011-05-11 2015-06-02 Dyson Technology Limited Surface treating appliance
US9204771B2 (en) 2011-05-11 2015-12-08 Dyson Technology Limited Surface treating appliance
US9282863B2 (en) 2011-05-11 2016-03-15 Dyson Technology Limited Surface treating appliance

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GB2424606B (en) 2007-03-14
GB2424606C (en) 2010-12-01

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