WO2002067755A1 - Appareil de separation cyclonique - Google Patents

Appareil de separation cyclonique Download PDF

Info

Publication number
WO2002067755A1
WO2002067755A1 PCT/GB2002/000328 GB0200328W WO02067755A1 WO 2002067755 A1 WO2002067755 A1 WO 2002067755A1 GB 0200328 W GB0200328 W GB 0200328W WO 02067755 A1 WO02067755 A1 WO 02067755A1
Authority
WO
WIPO (PCT)
Prior art keywords
separating apparatus
cyclonic separating
inlet
cyclones
support member
Prior art date
Application number
PCT/GB2002/000328
Other languages
English (en)
Inventor
Remco Douwinus Vuijk
Original Assignee
Dyson 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
Priority claimed from GBGB0104668.9A external-priority patent/GB0104668D0/en
Application filed by Dyson Ltd filed Critical Dyson Ltd
Publication of WO2002067755A1 publication Critical patent/WO2002067755A1/fr

Links

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
    • A47L9/1616—Multiple arrangement thereof
    • A47L9/1641—Multiple arrangement thereof for parallel flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
    • 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
    • B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission
    • B04C5/04—Tangential inlets
    • 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
    • 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
    • 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
    • B04C5/28—Multiple arrangement thereof for parallel flow

Definitions

  • the invention relates to cyclonic separating apparatus. Particularly, but not exclusively, the invention relates to cyclonic separating apparatus for use in vacuum cleaners.
  • Cyclonic separating apparatus is well known and has uses in a wide variety of applications. Over the last decade or so, the use of cyclonic separating apparatus to separate particles from an airflow in a vacuum cleaner has been developed and introduced to the market. Detailed descriptions of cyclonic separating apparatus for use in vacuum cleaners are given in, inter alia, US 3,425,192, US 4,373,228 and EP 0 042 723. From these and other prior art documents, it can be seen that it is known to provide two cyclone units in series so that the airflow passes sequentially through two cyclones. This allows the larger dirt and debris to be extracted from the airflow in the first cyclone, leaving the second cyclone to operate under optimum conditions and so effectively to remove very fine particles in an efficient manner. This type of arrangement has been found to be effective when dealing with airflows in which is entrained a variety of matter having a wide particle size distribution. Such is the case in vacuum cleaners.
  • the second cyclone unit consists of a plurality of cyclones arranged in parallel.
  • the incoming air is divided between the cyclones and this is achieved by allowing the inlets of the cyclones to communicate with a plenum chamber into which air exiting the first cyclone is admitted.
  • a plenum chamber into which air exiting the first cyclone is admitted.
  • each cyclone requires each cyclone to have an individual inlet associated with it in order to ensure that the incoming air follows a helical path within each cyclone. This type of arrangement adds to the overall cost of the components of the apparatus and also to the cost of assembly of the apparatus.
  • the invention provides cyclonic separating apparatus comprising a plurality of cyclones arranged in parallel with one another, each cyclone having a tapering body and an inlet constructed and arranged so as to create a helical flow within the tapering body, wherein the inlet for each cyclone is manufactured integrally with the inlets for the remaining cyclones.
  • the integral manufacture of the inlets to the cyclones provides a simple and economic solution to the difficulties associated with the provision of individual inlets to each of a plurality of cyclones.
  • the integral manufacture of the inlets for the cyclones also removes the risk of any one of several individual inlets being inaccurately positioned during manufacture.
  • the size of the part will allow any misalignment during assembly to be readily identified and corrected. The resulting reduction in substandard or faulty apparatus is beneficial to the user.
  • each inlet is substantially identical to the remaining inlets and, more preferably, each inlet comprises a helical channel which opens into the respective tapering body. This arrangement is convenient and reliable to manufacture.
  • the tapering bodies are manufactured separately from the inlets, more preferably integrally with one another.
  • the apparatus comprises an inlet support member in which the inlet for each of the cyclones is formed.
  • Figures la and lb are front and side views, respectively, of a vacuum cleaner incorporating cyclonic separating apparatus according to the invention.
  • Figures 2a, 2b and 2c are front, side and plan views, respectively, of a first embodiment of cyclonic separating apparatus forming part of the vacuum cleaner of Figures la and lb;
  • Figures 3a and 3b are front and sectional side views, respectively, of the cyclonic separating apparatus of Figures 2a, 2b and 2c, Figure 3b being taken along the line III- HI of Figure 3 a;
  • Figures 4a, 4b and 4c are perspective, plan and sectional side views, respectively, of a cyclone portion of the cyclonic separating apparatus of Figures 2a, 2b and 2c, Figure 4c being taken along line IN-IN of Figure 4b;
  • Figures 5a and 5b are perspective views, taken from the top and bottom respectively, of an inlet support member forming part of the cyclonic separating apparatus of Figures 2a, 2b and 2c;
  • Figures 6a and 6b are plan and perspective views, respectively, of a vortex finder member forming part of the cyclonic separating apparatus of Figures 2a, 2b and 2c;
  • Figure 7 is a schematic sectional view taken along the length of an inlet forming part of the inlet support member of Figures 5 a and 5b with the vortex finder member of Figures 6a and 6b located adjacent the inlet support member;
  • Figures 8a and 8b are plan and sectional views, respectively, of the inlet support member of Figures 5a and 5b and seven vortex finder members of the type shown in Figures 6a and 6b, Figure 8b being taken along the line VIII-NIII of Figure 8a;
  • Figures 9a and 9b are views similar to those of Figures 8a and 8b but with the cyclone portion of Figures 4a, 4b and 4c positioned adjacent the inlet support member, Figure 9b being taken along the line LX-LX of Figure 9a.
  • FIGS la and lb show a domestic vacuum cleaner 10 incorporating cyclonic separating apparatus according to the present invention.
  • the vacuum cleaner 10 comprises an upstanding body 12 at a lower end of which is located a motor casing 14.
  • a cleaner head 16 is mounted in an articulated fashion on the motor casing 14.
  • a suction inlet 18 is provided in the cleaner head 16 and wheels 20 are rotatably mounted on the motor casing 14 to allow the vacuum cleaner 10 to be manoeuvered over a surface to be cleaned.
  • Cyclonic separating apparatus 100 is mounted on the upstanding body 12 above the motor casing 14.
  • the cyclonic separating apparatus 100 is seated on a generally horizontal surface formed by a filter cover 22.
  • the filter cover 22 is located above the motor casing 14 and provides a cover for a post-motor filter (not shown).
  • the cyclonic separating apparatus 100 is also secured to the upstanding body 12 by means of a clip 24 located at the top of the cyclonic separating apparatus 100.
  • the upstanding body 12 incorporates upstream ducting (not shown) for carrying dirty air to an inlet of the cyclonic separating apparatus 100 and downstream ducting 26 for carrying cleaned air away from the cyclonic separating apparatus 100.
  • the upstanding body 12 further incorporates a hose and wand assembly 28 which may be retained in the configuration shown in the drawings so as to function as a handle for manoeuvering the vacuum cleaner 10 over a surface to be cleaned.
  • the hose and wand assembly 28 may be released to allow the distal end 28a of the wand to be used in conjunction with a floor tool (not shown) to perform a cleaning function, eg on stairs, upholstery, etc.
  • the structure and operation of the hose and wand assembly 28 is not material to the present invention and will not be described any further here.
  • the precise details of the features of the vacuum cleaner 10 described above are not material to the present invention.
  • the invention is concerned with the details of the cyclonic separation apparatus 100 forming part of the vacuum cleaner 10.
  • the motor located in the motor casing 14 is activated so that air is drawn into the vacuum cleaner via either the suction inlet 18 or the distal end 28a of the hose and wand assembly 28.
  • This dirty air (being air having dirt and dust entrained therein) is passed to the cyclonic separation apparatus 100 via the upstream ducting.
  • After the air has passed through the " cyclonic separation apparatus 100 it is ducted out of the cyclonic separating apparatus 100 and down the upstanding body 12 to the motor casing 14 via the downstream ducting 26.
  • the cleaned air is used to cool the motor located in the motor casing 14 before being exhausted from the vacuum cleaner 10 via the filter cover 22.
  • the cyclonic separation apparatus 100 illustrated in Figure 2 comprises an upstream cyclone unit 101 consisting of a single upstream cyclone 102 and a downstream cyclone unit 103 consisting of a plurality of downstream cyclones 104.
  • the upstream cyclone 102 consists essentially of a cylindrical bin 106 having a closed base 108.
  • the open upper end 110 of the cylindrical bin abuts against an inlet support member 112 which defines an upper end of the upstream cyclone 102 and will be described in more detail below.
  • An inlet port 114 is provided in the cylindrical bin 106 in order to allow dirty air to be introduced to the interior of the upstream cyclone 102.
  • the inlet port 114 is shaped, positioned and configured to communicate with the upstream ducting which carries dirt-laden air from the cleaner head 16 to the cyclonic separating apparatus 100.
  • a handle 116 and a catch 118 are provided on the cylindrical bin 106 and the inlet support member 112 respectively in order to provide means for releasing the cylindrical bin 106 from the inlet support member 112 when the cylindrical bin 106 requires to be emptied.
  • a seal (not shown) can be provided between the cylindrical bin 106 and the inlet support member 112 if required.
  • the base 108 of the cylindrical bin can be hingedly connected to the remainder of the cylindrical bin in order to provide further access to the interior of the cylindrical bin 106 for emptying purposes if required.
  • the embodiment illustrated herein will include a mechanism for allowing the base 108 to be hingedly opened in order to allow emptying, but the details of such a mechanism form the subject of a copending application and will not be described any further here.
  • downstream cyclones 104 are provided in the downstream cyclone unit 103.
  • the downstream cyclones 104 are equi-angularly spaced about the central longitudinal axis 150 of the downstream cyclone unit 103, which is coincident with the longitudinal axis of the upstream cyclone unit 101.
  • the arrangement is illustrated in Figure 2c.
  • Each downstream cyclone 104 is frusto-conical in shape with the larger end thereof located lowermost and the smaller end uppermost.
  • Each downstream cyclone 104 has a longitudinal axis 148 (see Figure 3b) which is inclined slightly towards the longitudinal axis 150 of the downstream cyclone unit 103. This feature will be described in more detail below.
  • each downstream cyclone 104 extends radially further from the longitudinal axis 150 of the downstream cyclone unit 103 than the wall of the cylindrical bin 106.
  • the uppermost ends of the downstream cyclones 104 project inside an upper portion 120 which extends upwardly from the surfaces of the downstream cyclones 104.
  • the upper portion 120 supports a handle 122 by means of which the entire cyclonic separation apparatus 100 can be transported.
  • a catch 124 is provided on the handle 122 for the purposes of securing the cyclonic separation apparatus 100 to the upstanding body 12 at the upper end thereof.
  • An outlet port 126 is provided in the inlet support member 112 for conducting cleaned air out of the cyclonic separating apparatus 100.
  • the outlet port 126 is arranged and configured to co-operate with the downstream ducting 26 for carrying the cleaned air to the motor casing 14.
  • the upper portion 120 also carries an actuating lever 128 designed to activate a mechanism for opening the base 108 of the cylindrical bin 106 for emptying purposes as mentioned above.
  • Figure 3 a corresponds to Figure 2a and indicates the line i ⁇ -ILI on which the section of Figure 3b is taken.
  • the internal features of the upstream cyclone 102 include an internal wall 132 extending the entire length thereof.
  • the internal space defined by the internal wall 132 communicates with the interior of the upper portion 120 as will be described below.
  • the purpose of the internal wall 132 is to define a collection space 134 for fine dust.
  • Located inside the internal wall 132 and in the collection space 134 are components for allowing the base 108 to open when the actuating lever 128 is actuated. The precise details and operation of these components is immaterial to the present invention and will not be described any further here.
  • baffles or fins 136 Mounted externally of the internal wall 132 are four equi-spaced baffles or fins 136 which project radially outwardly from the internal wall 132 towards the cylindrical bin 106. These baffles 136 assist with the deposition of large dirt and dust particles in the collection space 138 defined between the internal wall 132 and the cylindrical bin 106 adjacent the base 108. The particular features of the baffles 136 are described in more detail in WO 00/04816. Located outwardly of the internal wall 132 in an upper portion of the upstream cyclone 102 is a shroud 140. The shroud extends upwardly from the baffles 136 and, together with the internal wall 132, defines an air ' passageway 142.
  • the shroud 140 has a perforated portion 144 allowing air to pass from the interior of the upstream cyclone 102 to the air passageway 142.
  • the air passageway 142 communicates with the inlet 146 of each of the downstream cyclones 104.
  • Each inlet 146 is located in the inlet support member 112 and is arranged in the manner of a scroll so that air entering each downstream cyclone 104 is forced to. follow a helical path within the respective downstream cyclone 104.
  • the detail of the inlets 146 will be described in more detail below.
  • each downstream cyclone 104 is inclined towards the longitudinal axis 150 of the downstream cyclone unit 103.
  • the upper end of each downstream cyclone 104 is closer to the longitudinal axis 150 than the lower end thereof.
  • the angle of inclination of the relevant axes 148 is substantially 7.5°.
  • the upper ends of the downstream cyclones 104 project inside the upper portion 120, as previously mentioned.
  • the interior of the upper portion 120 defines a chamber 152 with which the upper ends of the downstream cyclones 104 communicate.
  • the upper portion 120 and the surfaces of the downstream cyclones 104 together define an axially extending passageway or dust channel 154, located between the downstream cyclones 104, which communicates with the collection space 134 defined by the internal wall 132. It is thus possible for dirt and dust which exits the smaller ends of the downstream cyclones 104 to pass from the chamber 152 to the collection space 134 via the dust channel 154.
  • Figures 4a, 4b and 4c illustrate the arrangement of the downstream cyclones 104 in greater detail. In particular, this helps to illustrate the configuration of the dust channel 154.
  • Figure 4b also helps to illustrate the fact that the side of each of the downstream cyclones 104 closest to the longitudinal axis of the downstream cyclone unit 103 lies substantially parallel thereto.
  • the downstream cyclones 104 have tapering bodies 104a which are arranged in a ring centered on the axis 150 of the downstream cyclone unit 103.
  • a generally cylindrical wall 120a forming part of the upper portion 120 extends downwardly so as to meet the tapering bodies 104a.
  • the downstream cyclones 104 and the cylindrical wall 120a are moulded integrally as a single piece 160, together with a collar 162 located adjacent the lower ends of the tapering bodies 104a and appropriate shapings 164 allowing the fixing of the single piece 160 to other parts of the cyclonic separating apparatus 100.
  • the inlet support member 112 is shown in detail in Figures 5a and 5b.
  • the inlet support member 112 is moulded from a plastics material in a single piece and has a generally cylindrical wall 170 having a lower lip 172.
  • the outlet port 126 is moulded into the cylindrical wall 170.
  • Radially inwardly of the cylindrical wall 170 are second and third cylindrical walls 174, 176 between which are located baffle members 178.
  • the baffle members 178, together with the second and third cylindrical walls 174, 176, define seven passageways 180 for carrying dirt- and dust-laden air to the inlets 146 of the downstream cyclones 104.
  • These passageways 180 communicate with the air passageway 142 delimited by the shroud 140 and the internal wall 132. Between each pair of adjacent passageways 180 are blind recesses 182.
  • Each moulding 184 is generally trough-shaped and follows a helical path about an aperture 186 extending through the upper portion of the inlet support member 112.
  • Seven identical apertures 186 are provided and each aperture communicates with a chamber 188 defined by the first and second cylindrical walls 170, 174 and the mouldings 184.
  • the apertures 186 are in communication with the outlet port 126.
  • FIGS. 6a and 6b show a vortex finder member 192.
  • the vortex finder member 192 comprises a vortex finder 156 which consists of an upstanding tubular collar of the same internal diameter as the aperture 186.
  • the vortex finder functions as the outlet for air exiting the respective downstream cyclone 104.
  • Mounted inside the vortex finder 156 is a centrebody 158 which helps to stabilize and straighten the airflow passing along the vortex finder 156.
  • a plate 194 is provided at the base of the vortex finder 156.
  • the shape of the plate 194 is such that, when the vortex finder member 192 is located adjacent one of the inlets 146, the plate 194 covers the inlet 146 from the point furthest downstream to an upstream point.
  • a recess or aperture 196 is provided in the plate 194.
  • the recess or aperture 198 is located and dimensioned so as to be able to receive the peg 190 located adjacent the respective inlet 146 so as to assist with the accurate location of the vortex finder member 192.
  • the vortex finder member 192 is fixed in position by welding around the base of the vortex finder 156. No fixing need be provided between the outer edge of the plate 194 and the inlet 146.
  • the shape of the inlets 146 is described in more detail with reference to Figure 7 which is a schematic view along the length of one of the inlets 146 assuming that the inlet followed a straight path instead of a helical one.
  • the passageway 180 terminates in a right-angled bend 200 whose walls are moulded integrally with the inlet support member 112.
  • the inlet 146 formed by a trough moulded into the inlet support member 112, has a first portion 146a which extends substantially perpendicularly to the axis 148 of the downstream cyclone to which the inlet 146 relates (see Figure 9b).
  • the inlet 146 has a second portion 146b which is inclined to the first portion 146a at a slight angle ⁇ .
  • the size of the angle ⁇ can vary from as little as 5° to as much as 20 °, an angle of approximately 16° being preferred.
  • Figures 8a and 8b show the inlet support member 112 with seven vortex finder members 192 placed in position adjacent the respective inlets 146.
  • the section shown in Figure 8b is taken along the line NUI-NIII.
  • the axes of the vortex finders 156 are inclined slightly towards the central longitudinal axis of the inlet support member 112 so as to coincide with the axes of the downstream cyclones 104.
  • the directions of the first portions 146a of the inlets 146 do not lie precisely horizontally, but are inclined downwardly towards the lower lip 172 of the cyclindrical wall 170.
  • Figures 9a and 9b are views similar to those shown in Figures 8a and 8b but with the integral piece 160 incorporating- the downstream cyclones 104 attached to the inlet support member 112 as well.
  • one of the tapering bodies 104a is fitted over each of the inlets 146 so that the inlet 146 opens into the respective tapering body 104a.
  • the inlet support member 112 includes a circular lip 202 around each of the mouldings 184 which define the inlets 146.
  • the lower edge of each .tapering body 104a locates inside one of the lips 202 and is fixed therein by any suitable means such as adhesive, welding, interference fit, screws, etc.
  • the outer edge of the plate 194 can be fixed in position simultaneously with the fixing of the cyclones 104.
  • the vortex finder 156 then projects into the tapering body 104a and communicates therewith so as to allow air to exit from the cyclone 104 into the " chamber 188.
  • the inner edge of the collar 162 abuts against the top of the third cylindrical walll76 when the cyclone portion 160 is located adjacent the inlet support member 112. A seal is formed between these two members.
  • the third cylindrical wall 176 forms a further dust channel 204 which forms an extension of the dust channel 154.
  • the inlet support member 112 is located on top of the upstream cyclone 102.
  • the lower Up 172 of the first cylindrical wall 170 comes into sealing contact with an annular plate 206 which is located on top of the upstream cyclone 102 and closes the top thereof radially outwardly of the shroud 140.
  • the second cylindrical wall 174 is brought into sealing engagement with an upper portion of the shroud 140 and the third cylindrical wall is brought into sealing engagement with the upper end of the internal wall 132.
  • the further dust channel 204 is brought into sealed communication with the dust collector 134 and the inlets 146 are brought into sealed communication with the air passageway 142.
  • the mode of operation of the apparatus described above is as follows. Dirty air (being air in which dirt and dust is entrained) enters the cyclonic separating apparatus 100 via the inlet port 114 .
  • the arrangement of the inlet port 114 is essentially tangential to the wall of the cylindrical bin 106 which causes the incoming air to follow a helical path around the inside of the cylindrical bin 106. Larger dirt and dust particles, along with fluff and other large debris, are deposited in the collection space 138 adjacent the base 108 by virtue of the effect of centrifugal forces acting on the particles, as is well known.
  • Partially cleaned air travels inwardly and upwardly away from the base 108, exiting the upstream cyclone 102 via the perforated portion 144 of the shroud 140.
  • the partially- cleaned air then moves along the air passageway 142 in which it is divided into seven portions.
  • Each portion enters one of the downstream cyclones 104 via the respective inlet 146.
  • each inlet 146 is a scroll inlet which forces the incoming air to follow a helical path inside the downstream cyclone 104.
  • the tapering shape of the downstream cyclone 104 causes further, intense cyclonic separation to take place inside the downstream cyclone 104 so that very fine dirt and dust particles are separated from the main airflow.
  • the dirt and dust particles exit the uppermost end of the downstream cyclone 104 whilst the cleaned air returns to the lower end of the downstream cyclone 104 along the axis 148 thereof and exits via the vortex finder 156.
  • the cleaned air passes from the vortex finder 156 into the annular chamber 188 and from there to the outlet port 126. Meanwhile, the dirt and dust which has been separated from the airflow in the downstream cyclone 104 falls from the chamber 152 through the dust channel 154 to the collection space 134. It is prevented from passing to the open uppermost end of the adjacent cyclones 104 by the fins 153.
  • the base 108 When it is desired to empty the cyclonic separating apparatus 100, the base 108 can be hingedly released from the sidewall of the cylindrical bin 106 so that the dirt and debris collected in collection spaces 134 and 138 can be allowed to drop into an appropriate receptacle. As previously explained, the detailed operation of the emptying mechanism does not form part of the present invention and will not be described any further here.
  • downstream cyclones illustrated above may be arranged so that their respective axes are arranged parallel to one another instead of being inclined towards the axis of the downstream cyclone unit as shown in the drawings.
  • Other variations and modifications will be apparent to a skilled reader.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cyclones (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Abstract

L'invention concerne un appareil de séparation cyclonique (100) constitué d'une pluralité de cyclones (104) montés parallèlement les uns aux autres, chaque cyclone (104) comprenant un corps conique (104a) et un orifice d'admission (146) conçu de façon à créer un écoulement en hélice à l'intérieur du corps conique (104a). L'orifice d'admission (146) de chaque cyclone (104) est solidaire des orifices d'admission (146) des autres cyclones (104).
PCT/GB2002/000328 2001-02-24 2002-01-24 Appareil de separation cyclonique WO2002067755A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0104668.9 2001-02-24
GBGB0104668.9A GB0104668D0 (en) 2001-02-24 2001-02-24 Cyclonic separating apparatus
GB0109391A GB2372468A (en) 2001-02-24 2001-04-12 Cyclonic separating apparatus
GB0109391.3 2001-04-12

Publications (1)

Publication Number Publication Date
WO2002067755A1 true WO2002067755A1 (fr) 2002-09-06

Family

ID=26245756

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/000328 WO2002067755A1 (fr) 2001-02-24 2002-01-24 Appareil de separation cyclonique

Country Status (1)

Country Link
WO (1) WO2002067755A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2876265A1 (fr) * 2004-10-08 2006-04-14 Samsung Kwangju Electronics Co Dispositif de collecte de poussiere a cyclones multiples et aspirateur utilisant un tel dispositif
EP1679025A2 (fr) 2005-01-07 2006-07-12 Samsung Electronics Co., Ltd. Aspirateur cyclone
EP1779761A2 (fr) 2005-10-28 2007-05-02 Samsung Gwangju Electronics Co, Ltd. Collecteur de poussière à cyclones multiples
ES2288348A1 (es) * 2004-05-14 2008-01-01 Samsung Gwangju Electronics Co., Ltd. Recogedor de polvo con deposito de tipo ciclon y aspiradora provista de dicho dispositivo.
US7582129B2 (en) 2005-10-10 2009-09-01 Samsung Gwangju Electronics Co., Ltd. Multi-cyclone dust separating apparatus
US7594944B2 (en) 2005-10-12 2009-09-29 Samsung Gwangju Electronics Co., Ltd. Multi-cyclone dust separating apparatus
US7682412B2 (en) 2005-10-10 2010-03-23 Samsung Gwanju Electronics Co., Ltd. Multi-cyclone dust collection apparatus
US7686858B2 (en) 2005-10-10 2010-03-30 Samsung Gwangju Electronics Co., Ltd. Cyclone dust collection apparatus
US7770256B1 (en) 2004-04-30 2010-08-10 Bissell Homecare, Inc. Vacuum cleaner with multiple cyclonic dirt separators and bottom discharge dirt cup
US8308832B2 (en) 2009-02-16 2012-11-13 Samsung Electronics Co., Ltd. Dust separating and collecting apparatus of vacuum cleaner

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE663679C (de) * 1936-12-02 1938-08-11 Christian Adolf Henry Lange Staubsauger
DE1058470B (de) * 1956-01-07 1959-06-04 Dorr Oliver Inc Mehrfachhydrozyklon
US3425192A (en) * 1966-12-12 1969-02-04 Mitchell Co John E Vacuum cleaning system
EP0042723A2 (fr) * 1980-06-19 1981-12-30 Rotork Appliances Limited Dispositif de nettoyage par aspiration
US4373228A (en) * 1979-04-19 1983-02-15 James Dyson Vacuum cleaning appliances
NL8602941A (nl) * 1986-11-19 1988-06-16 Antonius Fransiscus Maria Van Cycloon.
FR2619498A1 (fr) * 1987-08-17 1989-02-24 Bonnet Georges Filtre a batterie cyclonique pour aspirateurs
WO2000044272A1 (fr) * 1999-01-29 2000-08-03 Fantom Technologies Inc. Aspirateur-balai

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE663679C (de) * 1936-12-02 1938-08-11 Christian Adolf Henry Lange Staubsauger
DE1058470B (de) * 1956-01-07 1959-06-04 Dorr Oliver Inc Mehrfachhydrozyklon
US3425192A (en) * 1966-12-12 1969-02-04 Mitchell Co John E Vacuum cleaning system
US4373228A (en) * 1979-04-19 1983-02-15 James Dyson Vacuum cleaning appliances
EP0042723A2 (fr) * 1980-06-19 1981-12-30 Rotork Appliances Limited Dispositif de nettoyage par aspiration
NL8602941A (nl) * 1986-11-19 1988-06-16 Antonius Fransiscus Maria Van Cycloon.
FR2619498A1 (fr) * 1987-08-17 1989-02-24 Bonnet Georges Filtre a batterie cyclonique pour aspirateurs
WO2000044272A1 (fr) * 1999-01-29 2000-08-03 Fantom Technologies Inc. Aspirateur-balai

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7770256B1 (en) 2004-04-30 2010-08-10 Bissell Homecare, Inc. Vacuum cleaner with multiple cyclonic dirt separators and bottom discharge dirt cup
ES2288348A1 (es) * 2004-05-14 2008-01-01 Samsung Gwangju Electronics Co., Ltd. Recogedor de polvo con deposito de tipo ciclon y aspiradora provista de dicho dispositivo.
DE102005008278B4 (de) * 2004-05-14 2008-03-27 Samsung Gwangju Electronics Co. Ltd. Zyklongefäßstaubsammler und Staubsauger diesen aufweisend
US7429284B2 (en) 2004-10-08 2008-09-30 Samsung Gwangju Electronics Co., Ltd. Cyclone dust collecting apparatus
DE102005015004B4 (de) * 2004-10-08 2008-02-07 Samsung Gwangju Electronics Co. Ltd. Mehrzyklon-Staubsammelvorrichtung und Staubsauger mit einer solchen
FR2876265A1 (fr) * 2004-10-08 2006-04-14 Samsung Kwangju Electronics Co Dispositif de collecte de poussiere a cyclones multiples et aspirateur utilisant un tel dispositif
US7449039B2 (en) 2005-01-07 2008-11-11 Samsung Electronics Co., Ltd. Cyclonic cleaner
EP1679025A2 (fr) 2005-01-07 2006-07-12 Samsung Electronics Co., Ltd. Aspirateur cyclone
US7582129B2 (en) 2005-10-10 2009-09-01 Samsung Gwangju Electronics Co., Ltd. Multi-cyclone dust separating apparatus
US7682412B2 (en) 2005-10-10 2010-03-23 Samsung Gwanju Electronics Co., Ltd. Multi-cyclone dust collection apparatus
US7686858B2 (en) 2005-10-10 2010-03-30 Samsung Gwangju Electronics Co., Ltd. Cyclone dust collection apparatus
US7594944B2 (en) 2005-10-12 2009-09-29 Samsung Gwangju Electronics Co., Ltd. Multi-cyclone dust separating apparatus
EP1779761A2 (fr) 2005-10-28 2007-05-02 Samsung Gwangju Electronics Co, Ltd. Collecteur de poussière à cyclones multiples
US7628833B2 (en) 2005-10-28 2009-12-08 Samsung Gwangju Electronics Co., Ltd. Multi-cyclone dust separating apparatus
US8308832B2 (en) 2009-02-16 2012-11-13 Samsung Electronics Co., Ltd. Dust separating and collecting apparatus of vacuum cleaner

Similar Documents

Publication Publication Date Title
GB2372468A (en) Cyclonic separating apparatus
EP1361815B1 (fr) Aspirateur
EP1370173B1 (fr) Appareil de separation cyclonique
WO2002067756A1 (fr) Appareil de separation cyclonique
EP2217122B1 (fr) Appareil de séparation cyclonique
AU2002225232A1 (en) Vacuum cleaner
EP1377196B1 (fr) Appareil de separation cyclonique
EP1239969B1 (fr) Appareil de separation cyclonique
EP1774889B1 (fr) Collecteur de poussière à cyclones multiples pour aspirateur
AU2002226554A1 (en) Cyclonic separating apparatus
US20130145574A1 (en) Dual stage cyclone vacuum cleaner
AU2002241151A1 (en) Cyclonic separating apparatus
GB2399780A (en) Arrangement of cyclones for noise damping
WO2002067755A1 (fr) Appareil de separation cyclonique

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP