GB2554933A - Cyclonic separation device - Google Patents
Cyclonic separation device Download PDFInfo
- Publication number
- GB2554933A GB2554933A GB1617521.8A GB201617521A GB2554933A GB 2554933 A GB2554933 A GB 2554933A GB 201617521 A GB201617521 A GB 201617521A GB 2554933 A GB2554933 A GB 2554933A
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- GB
- United Kingdom
- Prior art keywords
- range
- separating chamber
- cylindrical portion
- generally cylindrical
- shroud
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/225—Convertible suction cleaners, i.e. convertible between different types thereof, e.g. from upright suction cleaners to sledge-type suction cleaners
-
- 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
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/24—Hand-supported suction cleaners
- A47L5/26—Hand-supported suction cleaners with driven dust-loosening tools
-
- 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
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
- A47L5/30—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with driven dust-loosening tools, e.g. rotating brushes
-
- 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
- A47L9/106—Dust removal
-
- 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
-
- 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
- B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
- B04C5/185—Dust collectors
Abstract
A cyclonic separator device comprises a separating chamber that includes an inlet, an outlet and a shroud 100, and a dirt collection chamber in communication with the separating chamber. The separating chamber includes a generally cylindrical portion with a central axis and the shroud 100 is positioned generally centrally of the generally cylindrical portion of the separating chamber. The shroud 100 has a generally cylindrical portion 102 with openings 104 therein for the passage of air, wherein said generally cylindrical portion 102 has an outer diameter in the range of 79-84mm. Other features and dimensions of the shroud 100 along with angles of a peripheral skirt 103are also disclosed.
Description
(54) Title of the Invention: Cyclonic separation device Abstract Title: Cyclonic separation device (57) A cyclonic separator device comprises a separating chamber that includes an inlet, an outlet and a shroud 100, and a dirt collection chamber in communication with the separating chamber. The separating chamber includes a generally cylindrical portion with a central axis and the shroud 100 is positioned generally centrally of the generally cylindrical portion of the separating chamber. The shroud 100 has a generally cylindrical portion 102 with openings 104 therein for the passage of air, wherein said generally cylindrical portion 102 has an outer diameter in the range of 79-84mm. Other features and dimensions of the shroud 100 along with angles of a peripheral skirt 103are also disclosed.
Figure 8
At least one drawing originally filed was informal and the print reproduced here is taken from a later filed formal copy.
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Title: Cyclonic separation device
Description of Invention
This invention relates to a cyclonic separation device and particularly, but not exclusively, to a surface cleaning apparatus including such a device.
In more detail, the invention relates to improving the performance of a cyclonic separating device by optimising certain characteristics and dimensions of the various component parts of the device.
According to a first aspect of the invention we provide a cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein the shroud has a generally cylindrical portion with openings therein for the passage of air, wherein said generally cylindrical portion has an outer diameter in the range of 79-84mm, preferably in the range of 80-83mm, more preferably in the range of 81-82mm, most preferably in the range of 81.25-81,75mm, and most preferably at or about 81,4mm.
According to a second aspect of the invention we provide a cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein the shroud has a generally cylindrical portion with openings therein for the passage of air, wherein said generally cylindrical portion has an outer surface which is spaced from an inner surface of the generally cylindrical portion of the separating chamber in the range of 15-17mm, preferably in the range of 15.5-16.5mm, more preferably in the range of 15.75-16.25mm, most preferably in the range of 15.9-16.1 mm, and most preferably at or about 16mm.
According to a third aspect of the invention we provide a cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein the shroud includes a peripheral skirt which extends towards the inner surface of the separating chamber, wherein an outermost peripheral edge of the skirt is spaced from an inner surface of the generally cylindrical portion of the separating chamber in the range of 9-12mm, preferably in the range of 10-11mm, more preferably in the range of 10.5-11mm, most preferably in the range of 10.7-11mm, and most preferably at or about 10.8mm.
According to a fourth aspect of the invention we provide a cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein the shroud includes a peripheral skirt which extends towards the inner surface of the separating chamber, wherein the skirt has an outer diameter in the range of 89-95mm, preferably in the range of 90-94mm, more preferably in the range of 91-93mm, more preferably in the range of 91-92mm, most preferably in the range of 91.5-92mm, and most preferably at or about 91,8mm.
According to a fifth aspect of the invention we provide a cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein an inner diameter of the generally cylindrical portion of the separating chamber is in the range of 111-117mm, preferably in the range of 112-116mm, more preferably in the range of 113-115mm, more preferably in the range of 113.5-114.5mm and most preferably at or about 114mm.
According to a sixth aspect of the invention we provide a cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein the shroud includes a peripheral skirt which extends towards the inner surface of the separating chamber, wherein the skirt is inclined at an angle to the central axis of the generally cylindrical portion of the separating chamber, wherein said angle is in the range of 31-37 degrees, preferably in the range of 32-36 degrees, more preferably in the range of 33-35 degrees, most preferably in the range of 33.5-34.5 degrees, and most preferably at or about 34 degrees.
According to a seventh aspect of the invention we provide a cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein the shroud is connected to an end of the separating chamber and has a generally free opposite end, wherein at or adjacent said connection to the chamber the shroud has a peripherally extending surface which is inclined at an angle to the central axis of the generally cylindrical portion of the separating chamber, wherein said angle is in the range of 29-34 degrees, preferably in the range of 30-33 degrees, more preferably in the range of 3132 degrees, most preferably in the range of 31.25-31.75 degrees, and most preferably at or about 31.5 degrees.
According to an eighth aspect of the invention we provide a cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein the shroud includes a peripheral skirt which extends towards the inner surface of the separating chamber and towards an end of the dirt collection chamber, wherein a free peripheral edge of the skirt is spaced from an inner surface of the end of the dirt collection chamber at a distance in the range of 30-35mm, preferably in the range of 31-34mm, more preferably in the range of 32-33mm, most preferably in the range of 32.2-32.6, and most preferably at or about 32.4mm.
According to a ninth aspect of the invention we provide a cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein the shroud has a generally cylindrical portion with openings therein for the passage of air, and wherein an end of the generally cylindrical portion of the shroud faces an inner surface of an end of the dirt collection chamber, wherein said end of the generally cylindrical portion of the shroud is spaced from the inner surface of an end of the dirt collection chamber in the range of 34-40mm, preferably in the range of 35-39mm, more preferably in the range of 36-38mm, most preferably in the range of 37-38mm, most preferably in the range of 37-37.5mm, and most preferably at or about 37.25mm.
According to a tenth aspect of the invention we provide a device according to any one of the first to ninth aspects of the invention including one or more or all of the features set out in any one of the first to ninth aspects of the invention.
Further features of the various aspects of the invention are set out in the appended claims.
Further features of the invention are set out in the appended claims.
Embodiments of the invention will be set out below by way of example only with reference to the accompanying figures, of which:
Figure 1 is a perspective view of a surface cleaning apparatus;
Figure 2 is a front view of the apparatus of figure 1;
Figure 3 is a side view of the apparatus figure 1;
Figure 4 is an opposite side view of the apparatus figure 1;
Figure 5 is a perspective view of a housing of the apparatus of figure 1, which housing is operable as a handheld surface cleaning apparatus;
Figure 6 is a side view of the housing of figure 5;
Figure 7 is an opposite side view of the housing of figure 5;
Figure 8 is a perspective view of a shroud of a cyclonic separation device of the apparatus;
Figures 9 to 12 are cross-sectional views of the apparatus through a central plane of a shroud; and
Figure 13 is a perspective view of a dirt collection chamber and cyclonic separation device of the apparatus.
Referring to the figures, these show a surface cleaning apparatus 10 in accordance with the present invention. The apparatus 10 includes a floor head 12, a housing 16 and an elongate member 14 connecting the floor head 12 to the housing 16. The housing 16 in this example is operable as a handheld surface cleaning apparatus, commonly known as a hand vac, when the elongate member 14 and floor head 12 are not connected thereto. The housing 16 supports a suction source, a dirt collection chamber and a cyclonic separator device. In this example the suction source is an electric motor driving a rotatable fan, but any appropriate suction source may be used. All that is necessary is for the suction source to be able to draw air through the floor head 12 and elongate member 14 towards the dirt collection chamber.
In this example the housing 16 supports or contains a battery to provide electrical power to the suction motor and other components of the apparatus
10. In alternative embodiments, the apparatus 10 may be mains powered.
Whilst in the present embodiment the apparatus 10 includes a cyclonic separator to separate dirt from the air flowing through the apparatus 10, this is not essential. Indeed, embodiments are envisaged where the apparatus 10 includes a filter bag which collects dirt, or any other appropriate device to separate the dirt from the air. The apparatus 10 includes a pivotally moveable door 18a which enables a user to empty dirt collected within the container 18.
The elongate member 14 includes a passage for carrying dirt-laden air from the floor head 12 to the dirt collection chamber 18. In this example the floor head 12 includes a motor for driving a rotatable floor agitating member or brush, so the elongate member 14 includes a further passage through which electrical cables may extend to provide an electric connection between the housing 16 and the motor in the floor head.
The floor head 12 is disconnectable from the elongate member 14, so that, for example, another tool can be connected to the free end of the elongate member 14. The elongate member 14 is also disconnectable from the housing 16, by way of a manually operated switch 17. This enables the housing 16 to be used as handheld surface cleaning apparatus, with the option of being able to connect another tool to the location from where the elongate member 16 is removed.
The housing 16 includes a handle for holding the apparatus 10, said handle including first 20 and second 21 user-graspable portions which are connected to each other substantially at right-angles. A first end of the first usergraspable portion 20 is connected to the housing 16 and extends generally rearwardly away therefrom and from the elongate member 14. A first end of the second user-graspable portion 21 is connected to the housing 16 and extends generally upwardly therefrom. Respective second ends of the first 20 and second 21 user-graspable portions are connected to each other. Essentially, the first 20 and second 21 user-graspable portions form a handle which is L-shaped and which provides two locations each of which is sized such that it can be grasped fully by a hand of a user. A device 22, e.g. a switch, for turning the apparatus “on” is positioned at the connection of the second ends of the first 20 and second 21 user-graspable portions to each other.
In the present embodiment, the generally cylindrical body 18 has an elongate axis A and provides at one end dirt collection chamber 18b and an adjacent separating chamber 18c. Within the chamber 18c is positioned a cyclonic separation device including a shroud 100 which also has an elongate axis coaxial with the axis A, the axis A being that about which dirt-laden air is caused to rotate as it passes through the apparatus 10 and circulates around the shroud 100. The shroud 100 is connected to the separating chamber 18b at one end and is free at an opposite end. The body 18 includes an inlet 99 through which dirt-laden air is drawn into the separating chamber 18c. The inlet 99 is configured to direct the incoming dirt-laden air into the generally cylindrical portion of the separating chamber 18c such that it travels circumferentially around an inner surface 18d of the separating chamber 18c. The elongate axis A is substantially horizontal in normal use. Whilst in this embodiment the elongate axes of the dirt collection chamber 18 and the shroud 100 are coaxial or substantially coaxial, they need not be. They could, for example, be parallel and offset from each other or inclined relative to each other. Alternatively, the shroud 100 could be positioned generally centrally of the generally cylindrical portion of the separating chamber 18.
The shroud 100 has three portions 101, 102 and 103, which are connected to each other and have different shapes. The portion 101 is positioned closest to the inlet 99 along the axis A and provides the connection of the shroud 100 to the separating chamber 18c. This portion 101 of the shroud 100 has a peripherally extending surface which is inclined at an angle a to the axis A. The inclined surface acts to direct incoming air most efficiently so that it travels around the shroud 100. It has been found that performance is optimised if the angle a is in the range of 29-34 degrees, preferably in the range of 30-33 degrees, more preferably in the range of 31-32 degrees, most preferably in the range of 31.25-31.75 degrees, and most preferably at or about 31.5 degrees.
The generally central portion 102 of the shroud 100 includes a framework to support a mesh or the like (not shown) and is generally cylindrical with openings 104 therein for the passage of air to an outlet 105. Other configurations of the portion 102 are envisaged, for example removing the mesh covering and instead making the openings 104 smaller and greater in number. It has been found that performance is optimised if the generally cylindrical portion 102 has an outer diameter K in the range of 79-84mm, preferably in the range of 80-83mm, more preferably in the range of 81-82mm, most preferably in the range of 81.25-81.75mm, and most preferably at or about 81,4mm.
Additionally, it has been found that performance is optimised if an outer surface of the portion 102 (or it’s covering, if there is one) is spaced at J from the inner surface 18d of the separating chamber 18c in the range of 15-17mm, preferably in the range of 15.5-16.5mm, more preferably in the range of 15.7516.25mm, most preferably in the range of 15.9-16.1mm, and most preferably at or about 16mm.
As regards the dimensions of the separating chamber 18c, it has also been found that performance is optimised where an inner diameter P of the generally cylindrical portion of the separating chamber is in the range of 111117mm, preferably in the range of 112-116mm, more preferably in the range of 113-115mm, more preferably in the range of 113.5-114.5mm and most preferably at or about 114mm.
The generally cylindrical portion 102 of the shroud 102 terminates at an end 106 which faces an inner surface 107 of an end of the dirt collection chamber, e.g. which faces the pivotally moveable door 18a. It has been found that performance is optimised where the end 106 of the generally cylindrical portion of the shroud 100 is spaced at N from the inner surface 107 in the range of 3440mm, preferably in the range of 35-39mm, more preferably in the range of
36-38mm, most preferably in the range of 37-38mm, most preferably in the range of 37-37.5mm, and most preferably at or about 37.25mm.
A free end of the shroud 100 includes a peripheral skirt 103, one purpose of which is to prevent dirt separated from the air being retrained into the airflow. The skirt 103 extends towards the inner surface 18d of the separating chamber and towards the end surface 107. It has been found advantageous to position an outermost peripheral edge 103a of the skirt 103 at Q from an inner surface 18d in the range of 9-12mm, preferably in the range of 10-11 mm, more preferably in the range of 10.5-11mm, most preferably in the range of 10.7-11mm, and most preferably at or about 10.8mm. In addition, in this embodiment, the peripheral edge 103a of the skirt 103 is spaced at M from the inner surface 107 in the range of 30-35mm, preferably in the range of 3134mm, more preferably in the range of 32-33mm, most preferably in the range of 32.2-32.6, and most preferably at or about 32.4mm.
In addition, it has been found that performance is improved if the skirt 103 has an outer diameter L in the range of 89-95mm, preferably in the range of 9094mm, more preferably in the range of 91-93mm, more preferably in the range of 91-92mm, most preferably in the range of 91.5-92mm, and most preferably at or about 91,8mm.
In a similar fashion to the portion 101, an outer surface of the skirt 103 is inclined at an angle Θ to the axis A. It has been found advantageous for the angle Θ to be in the range of 31-37 degrees, preferably in the range of 32-36 degrees, more preferably in the range of 33-35 degrees, most preferably in the range of 33.5-34.5 degrees, and most preferably at or about 34 degrees.
All of the above dimensions I ranges of dimensions have been found, in isolation, to provide improved separation performance. In addition, synergy has been found by combining two or more of the various sets of dimensions.
The embodiments described above and shown in the figures include a shroud 103 with dimensions which fulfil all of the above ranges, but it should be appreciated that this is not necessary. Indeed, improved performance can be found by utilising one, some or all of the dimension ranges listed above.
When used in this specification and claims, the terms comprises and comprising and variations thereof mean that the specified features, steps or integers are included. The terms are not to be interpreted to exclude the presence of other features, steps or components.
The features disclosed in the foregoing description, or the following claims, or the accompanying drawings, expressed in their specific forms or in terms of a means for performing the disclosed function, or a method or process for attaining the disclosed result, as appropriate, may, separately, or in any combination of such features, be utilised for realising the invention in diverse forms thereof.
Claims (30)
1. A cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein the shroud has a generally cylindrical portion with openings therein for the passage of air, wherein said generally cylindrical portion has an outer diameter in the range of 79-84mm, preferably in the range of 80-83mm, more preferably in the range of 81-82mm, most preferably in the range of 81.25-81,75mm, and most preferably at or about 81,4mm.
2. A cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein the shroud has a generally cylindrical portion with openings therein for the passage of air, wherein said generally cylindrical portion has an outer surface which is spaced from an inner surface of the generally cylindrical portion of the separating chamber in the range of 15-17mm, preferably in the range of 15.5-16.5mm, more preferably in the range of 15.75-16.25mm, most preferably in the range of 15.9-16.1 mm, and most preferably at or about 16mm.
3. A cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein the shroud includes a peripheral skirt which extends towards the inner surface of the separating chamber, wherein an outermost peripheral edge of the skirt is spaced from an inner surface of the generally cylindrical portion of the separating chamber in the range of 9-12mm, preferably in the range of 10-11mm, more preferably in the range of 10.5-11mm, most preferably in the range of 10.7-11mm, and most preferably at or about 10.8mm.
4. A cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein the shroud includes a peripheral skirt which extends towards the inner surface of the separating chamber, wherein the skirt has an outer diameter in the range of 89-95mm, preferably in the range of 90-94mm, more preferably in the range of 91-93mm, more preferably in the range of 91-92mm, most preferably in the range of 91.5-92mm, and most preferably at or about 91,8mm.
5. A cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein an inner diameter of the generally cylindrical portion of the separating chamber is in the range of 111-117mm, preferably in the range of 112-116mm, more preferably in the range of 113-115mm, more preferably in the range of 113.5-114.5mm and most preferably at or about 114mm.
6. A cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein the shroud includes a peripheral skirt which extends towards the inner surface of the separating chamber, wherein the skirt is inclined at an angle to the central axis of the generally cylindrical portion of the separating chamber, wherein said angle is in the range of 31-37 degrees, preferably in the range of 32-36 degrees, more preferably in the range of 33-35 degrees, most preferably in the range of 33.5-34.5 degrees, and most preferably at or about 34 degrees.
7. A cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein the shroud is connected to an end of the separator chamber and has a generally free opposite end, wherein at or adjacent said connection to the chamber the shroud has a peripherally extending surface which is inclined at an angle to the central axis of the generally cylindrical portion of the separating chamber, wherein said angle is in the range of 29-34 degrees, preferably in the range of 30-33 degrees, more preferably in the range of 3132 degrees, most preferably in the range of 31.25-31.75 degrees, and most preferably at or about 31.5 degrees.
8. A cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein the shroud includes a peripheral skirt which extends towards the inner surface of the separating chamber and towards an end of the dirt collection chamber, wherein a free peripheral edge of the skirt is spaced from an inner surface of the end of the dirt collection chamber at a distance in the range of 30-35mm, preferably in the range of 31-34mm, more preferably in the range of 32-33mm, most preferably in the range of 32.2-32.6, and most preferably at or about 32.4mm.
9. A cyclonic separator device for removing dust or debris from dirt-laden air, the device having:
a separating chamber;
an inlet through which dirt-laden air is drawn into the separating chamber;
an outlet through which cleaner air exits the separating chamber; a shroud; and a dirt collection chamber in communication with the separating chamber, wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber, wherein the shroud is positioned generally centrally of the generally cylindrical portion of the separating chamber, wherein the shroud has a generally cylindrical portion with openings therein for the passage of air, and wherein an end of the generally cylindrical portion of the shroud faces an inner surface of an end of the dirt collection chamber, wherein said end of the generally cylindrical portion of the shroud is spaced from the inner surface of an end of the dirt collection chamber in the range of 34-40mm, preferably in the range of 35-39mm, more preferably in the range of 36-38mm, most preferably in the range of 37-38mm, most preferably in the range of 37-37.5mm, and most preferably at or about 37.25mm.
10. A cyclonic separator device according to any one of claims 2 to 9 wherein the shroud has a generally cylindrical portion with openings therein for the passage of air, wherein said generally cylindrical portion has an outer diameter in the range of 79-84mm, preferably in the range of 80-83mm, more preferably in the range of 81-82mm, most preferably in the range of 81.2581,75mm, and most preferably at or about 81,4mm.
11. A cyclonic separator device according to any one of claims 1 and 3 to 9 wherein the shroud has a generally cylindrical portion with openings therein for the passage of air, wherein said generally cylindrical portion has an outer surface which is spaced from an inner surface of the generally cylindrical portion of the separating chamber in the range of 15-17mm, preferably in the range of 15.5-16.5mm, more preferably in the range of 15.75-16.25mm, most preferably in the range of 15.9-16.1 mm, and most preferably at or about 16mm.
12. A cyclonic separator device according to any one of claims 1,2 and 4 to 9 wherein the shroud includes a peripheral skirt which extends towards the inner surface of the separating chamber, wherein an outermost peripheral edge of the skirt is spaced from an inner surface of the generally cylindrical portion of the separating chamber in the range of 9-12mm, preferably in the range of 10-11mm, more preferably in the range of 10.5-11mm, most preferably in the range of 10.7-11mm, and most preferably at or about 10.8mm.
13. A cyclonic separator device according to any one of claims 1,2,3 and 5 to 9 wherein the shroud includes a peripheral skirt which extends towards the inner surface of the separating chamber, wherein the skirt has an outer diameter in the range of 89-95mm, preferably in the range of 90-94mm, more preferably in the range of 91-93mm, more preferably in the range of 91-92mm, most preferably in the range of 91.5-92mm, and most preferably at or about 91,8mm.
14. A cyclonic separator device according to any one of claims 1, 2, 3, 4 and 6 to 9 wherein an inner diameter of the generally cylindrical portion of the separating chamber is in the range of 111-117mm, preferably in the range of 112-116mm, more preferably in the range of 113-115mm, more preferably in the range of 113.5-114.5mm and most preferably at or about 114mm.
15. A cyclonic separator device according to any one of claims 1,2, 3, 4, 5 and 7 to 9 wherein the shroud includes a peripheral skirt which extends towards the inner surface of the separating chamber, wherein the skirt is inclined at an angle to the central axis of the generally cylindrical portion of the separating chamber, wherein said angle is in the range of 31-37 degrees, preferably in the range of 32-36 degrees, more preferably in the range of 3335 degrees, most preferably in the range of 33.5-34.5 degrees, and most preferably at or about 34 degrees.
16. A cyclonic separator device according to any one of claims 1,2,3, 4, 5, 6, 8 or 9 wherein the shroud is connected to an end of the separating chamber and has a generally free opposite end, wherein at or adjacent said connection to the chamber the shroud has a peripherally extending surface which is inclined at an angle to the central axis of the generally cylindrical portion of the separating chamber, wherein said angle is in the range of 29-34 degrees, preferably in the range of 30-33 degrees, more preferably in the range of 3132 degrees, most preferably in the range of 31.25-31.75 degrees, and most preferably at or about 31.5 degrees.
17. A cyclonic separator device according to any one of claims 1 to 7 or 9 wherein the shroud includes a peripheral skirt which extends towards the inner surface of the separating chamber and towards an end of the dirt collection chamber, wherein a free peripheral edge of the skirt is spaced from an inner surface of the end of the dirt collection chamber at a distance in the range of 30-35mm, preferably in the range of 31-34mm, more preferably in the range of 32-33mm, most preferably in the range of 32.2-32.6, and most preferably at or about 32.4mm.
18. A cyclonic separator device according to any one of claims 1 to 8 wherein the shroud has a generally cylindrical portion with openings therein for the passage of air, and wherein an end of the generally cylindrical portion of the shroud faces an inner surface of an end of the dirt collection chamber, wherein said end of the generally cylindrical portion of the shroud is spaced from the inner surface of an end of the dirt collection chamber in the range of 34-40mm, preferably in the range of 35-39mm, more preferably in the range of 36-38mm, most preferably in the range of 37-38mm, most preferably in the range of 37-37.5mm, and most preferably at or about 37.25mm.
19. A cyclonic separator device according to any preceding claim wherein the shroud has a central axis which is substantially coaxial or coaxial with the central axis of the generally cylindrical portion of the separating chamber
20. A cyclonic separator device according to any preceding claim wherein the shroud is connected to one end of the separating chamber and is free at an opposite end.
21. A surface cleaning apparatus including a separator device according to any preceding claim.
22. A surface cleaning apparatus according to claim 21 wherein the apparatus includes:
a floor head;
a housing supporting a suction source; and an elongate member connecting the floor head to the housing, said elongate member including a passage for carrying dirt-laden air from the floor head to the dirt collection chamber.
23. A surface cleaning apparatus according to claim 22 wherein the elongate member is disconnectable from the floor head.
24. A surface cleaning apparatus according to claim 22 or claim 23 wherein the elongate member is disconnectable from the housing.
25. A surface cleaning apparatus according to any one of claims 22 to 25 wherein the housing is operable as a handheld surface cleaning apparatus when the elongate member and floor head are disconnected therefrom.
5
26. A surface cleaning apparatus according to any one of claims 22 to 26 wherein an axis of the cyclonic separation device extends transverse to an elongate axis of the elongate member.
27. A surface cleaning apparatus according to any one of claims 22 to 27
10 wherein an axis of the cyclonic separation device extends perpendicular to an elongate axis of the elongate member.
28. A surface cleaning apparatus according to any one of claims 22 to 28 wherein the source of suction is a fan rotatable by an electric motor.
29. A cyclonic separator device or surface cleaning apparatus substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
20
30. Any novel feature or novel combination of features described herein and/or in the accompanying drawings.
Intellectual
Property
Office
Application No: GB1617521.8
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1617521.8A GB2554933B (en) | 2016-10-14 | 2016-10-14 | Cyclonic separation device |
| CN201710952841.6A CN107951446A (en) | 2016-10-14 | 2017-10-13 | Cyclone separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1617521.8A GB2554933B (en) | 2016-10-14 | 2016-10-14 | Cyclonic separation device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB201617521D0 GB201617521D0 (en) | 2016-11-30 |
| GB2554933A true GB2554933A (en) | 2018-04-18 |
| GB2554933B GB2554933B (en) | 2022-04-27 |
Family
ID=57680664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1617521.8A Active GB2554933B (en) | 2016-10-14 | 2016-10-14 | Cyclonic separation device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107951446A (en) |
| GB (1) | GB2554933B (en) |
Citations (4)
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|---|---|---|---|---|
| US5062870A (en) * | 1990-07-06 | 1991-11-05 | Notetry Limited | Shut-off device for cyclonic vacuum cleaner |
| US5078761A (en) * | 1990-07-06 | 1992-01-07 | Notetry Limited | Shroud |
| US20050223519A1 (en) * | 2004-03-17 | 2005-10-13 | Mason Greene | Light weight bagless vacuum cleaner |
| US20080104794A1 (en) * | 2004-03-17 | 2008-05-08 | Mason Greene | Filter Cartridge for Vacuum Cleaner |
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|---|---|---|---|---|
| JP2003180578A (en) * | 2001-12-18 | 2003-07-02 | Sanyo Electric Co Ltd | Vacuum cleaner |
| KR100883197B1 (en) * | 2002-09-11 | 2009-02-13 | 삼성광주전자 주식회사 | Grill assembly for a Cyclone-type dust collecting apparatus for a vacuum cleaner |
| CN201267443Y (en) * | 2008-09-12 | 2009-07-08 | 金莱克电气股份有限公司 | Cyclone separating type dust cup of vacuum cleaner |
| CN201426695Y (en) * | 2009-06-29 | 2010-03-24 | 金莱克电气股份有限公司 | Dust cup of dust collector |
| JP4941540B2 (en) * | 2009-11-27 | 2012-05-30 | パナソニック株式会社 | Cyclone dust collector and electric vacuum cleaner provided with the same |
| GB2490224B (en) * | 2011-04-15 | 2013-08-07 | Dyson Technology Ltd | Cyclonic separator |
| WO2013093417A2 (en) * | 2011-12-22 | 2013-06-27 | Dyson Technology Limited | Separating apparatus |
| CN202458203U (en) * | 2012-02-29 | 2012-10-03 | 莱克电气股份有限公司 | Novel dedusting device for deduster |
| CN202477552U (en) * | 2012-02-29 | 2012-10-10 | 莱克电气股份有限公司 | Dust removal device of cleaner |
| DE102012211253A1 (en) * | 2012-06-29 | 2014-01-02 | BSH Bosch und Siemens Hausgeräte GmbH | Vacuum cleaner with dust filter |
| CN103622642A (en) * | 2012-08-28 | 2014-03-12 | 莱克电气股份有限公司 | Dust collector dust cup without suction loss |
| CN105919515B (en) * | 2016-04-15 | 2018-08-28 | 苏州腾普电气科技有限公司 | Hand held cleaner host |
-
2016
- 2016-10-14 GB GB1617521.8A patent/GB2554933B/en active Active
-
2017
- 2017-10-13 CN CN201710952841.6A patent/CN107951446A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5062870A (en) * | 1990-07-06 | 1991-11-05 | Notetry Limited | Shut-off device for cyclonic vacuum cleaner |
| US5078761A (en) * | 1990-07-06 | 1992-01-07 | Notetry Limited | Shroud |
| US20050223519A1 (en) * | 2004-03-17 | 2005-10-13 | Mason Greene | Light weight bagless vacuum cleaner |
| US20080104794A1 (en) * | 2004-03-17 | 2008-05-08 | Mason Greene | Filter Cartridge for Vacuum Cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201617521D0 (en) | 2016-11-30 |
| CN107951446A (en) | 2018-04-24 |
| GB2554933B (en) | 2022-04-27 |
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