WO2001014066A1 - Cyclone dust collector - Google Patents

Cyclone dust collector Download PDF

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Publication number
WO2001014066A1
WO2001014066A1 PCT/KR2000/000210 KR0000210W WO0114066A1 WO 2001014066 A1 WO2001014066 A1 WO 2001014066A1 KR 0000210 W KR0000210 W KR 0000210W WO 0114066 A1 WO0114066 A1 WO 0114066A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
cyclone
cyclone body
guide passage
collector
Prior art date
Application number
PCT/KR2000/000210
Other languages
French (fr)
Korean (ko)
Inventor
Hyeok Seong An
Kyeong Seok Lim
Dong Jin Kwak
Original Assignee
Lg Electronics Inc.
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
Application filed by Lg Electronics Inc. filed Critical Lg Electronics Inc.
Priority to AU34603/00A priority Critical patent/AU3460300A/en
Publication of WO2001014066A1 publication Critical patent/WO2001014066A1/en

Links

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
    • B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • B04C3/06—Construction of inlets or outlets to the vortex chamber
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1608—Cyclonic chamber constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • 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
    • B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • B04C3/04—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
    • B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • B04C2003/003—Shapes or dimensions of vortex chambers

Definitions

  • the present invention relates to a cyclone collector which can collect various contaniinants, such as dust, by using the cyclone principle, and more particularly, to a cyclone collector having an air inlet structure which can enhance a circulating force for better separation of contaminants from air.
  • the cyclone collector carries out dust collection by only collecting contaminants contained in air by using a centrifugal force, and discharging the air outside of the cyclone collector, which is mostly used as a vacuum cleaner domestically.
  • the related art cyclone dust collectors will be explained with reference to FIGS. 1 to 4.
  • the related art cyclone collector is provided with a cyclone body 10, an air inlet 21 or 22 for drawing a /contaminants, an air outlet 30 for discharging the air cleaned in the cyclone body, a dust outlet 40 for discharging the contaminants drawn into the cyclone body together with the air, and a dust box 50 for collecting the contaminant discharged through the dust outlet 40.
  • the air inlets 21 and 22 there is an air inlet of a type located on the same line with the air outlet 30 as shown in FIGS. 1 and 2 for making a forward direction air flow, and a type formed on a circumference of the cyclone body 10 for leading an air flow tangential to the cyclone body as shown in FIGS. 3 and 4.
  • the dust contained in the air moves along the inside wall of the cyclone body and, is
  • air inlet 22 is formed tangential to the cyclone body 10.
  • the air is introduced into the cyclone body in a tangential direction to the cyclone body, to circulate around the inside wall of the cyclone body, the circulation generating means 60 may not be provided, additionally.
  • the air outlet 30 When a suction force is generated through one side of the cyclone body 10, i.e., the air outlet 30, the air containing the dust is drawn through the air inlet 22. Since the air inlet 22 is
  • a flow radius of the drawn air should be made greater
  • the present invention is directed to a cyclone collector that substantially
  • An object of the present invention is to provide a cyclone collector which can make a
  • Another object of the present invention is to provide a cyclone collector which has a smaller size without drop of a dust collecting performance.
  • the cyclone collector includes a cyclone body, an
  • the air inlet is formed in a center, or near to an outside circumference, of one side of the cyclone body, and the guide passage has a fixed cross section.
  • the air inlet is formed in a tangential direction to the cyclone body, and the guide passage has a fixed cross section.
  • the guide passage has a cross section gradually becoming the greater toward a longitudinal direction of the cyclone body as it goes the farther from the air inlet.
  • the guide passage has a length shorter than a length of an inside circumference of the cyclone body, but longer than 1/4 of the length of the inside circumference of the cyclone body.
  • the present invention can increase a circulation force of the air drawn into the cyclone body and reduce a size of the cyclone collector.
  • FIG. 1 illustrates a perspective view of a related art forward direction cyclone collector, with a partial cut away view
  • FIG.2 illustrates a section of the related art forward direction cyclone body shown in FIG.
  • FIG. 3 illustrates a perspective view of a related art tangential direction cyclone collector
  • FIG. 4 illustrates a section of the related art tangential direction cyclone body shown in
  • FIG. 3
  • FIG. 5 illustrates a partial perspective view of a cyclone collector in accordance with a first preferred embodiment of the present invention
  • FIG. 6 illustrates a section of the cyclone collector shown in FIG. 5;
  • FIG. 7 illustrates a partial perspective view of a cyclone collector in accordance with a
  • FIG. 8 illustrates a section of the cyclone collector shown in FIG. 7;
  • FIG. 9 illustrates a partial perspective view of a cyclone collector in accordance with a
  • FIG. 10 illustrates a section of the cyclone collector shown in FIG. 9;
  • FIG. 11 illustrates a partial perspective view of a cyclone collector in accordance with a
  • FIG. 12 illustrates a section of the cyclone collector shown in FIG. 11. Best Mode for Carrying Out the Invention
  • FIG. 5 illustrates a partial perspective view of a cyclone collector in accordance with a first preferred embodiment
  • FIG. 6 illustrates a section of the cyclone collector shown in FIG.
  • the present invention suggests to provide a cyclone collector having a guide passage in
  • embodiment of the present invention includes an air inlet 120 at a center of one side thereof, and
  • a guide passage 121 having a fixed cross section extended a length along an inside surface of the
  • passage 121 should be extended more than a length which can induce the air to have a circulation force greater than a certain level, which is longer than 1/4 of a circumferential length but shorter
  • a section of the cyclone body 110 within which the drawn air is subjected to a centrifugal force, i.e., an actual contaminant separation section, is shortened, that is not preferable because there can be an actual drop of a dust collecting efficiency of the cyclone body.
  • the length of the guide passage 121 should not be necessarily limited to the above range, and, if necessary, it is preferable that the range is adjusted properly for providing an adequate circulation force to the air drawn into the cyclone body 110.
  • suction force generating means is general means of
  • passage 121 in communication with the air inlet 120 is extended along the inside surface of the
  • the various contaminants contained in the air can be subjected to a centrifugal force greater than in the case of the related art cyclone collector, because the contaminants are subjected to a centrifugal force for the first time during the contaminants flow along the guide
  • the circulation force of the drawn air can be increased without an actual increase of the cyclone collector.
  • the present invention is not limited to the aforementioned form, but there is
  • FIG. 1 can be various modifications and variations in the cyclone collector of the present invention.
  • FIG. 7 illustrates a partial perspective view of a cyclone collector in accordance with a second
  • FIG. 8 illustrates a cross section of the
  • the guide passage 221 is formed such that a cross section of
  • the guide passage 221 becomes gradually the greater toward a longitudinal direction of the
  • one side surface 221a of the guide passage is formed to have an angle ' ⁇ ' to a cross sectional plane of the cyclone body 210.
  • the air drawn into the cyclone body 210 circulates with a circulation angle ' ⁇ ' forced
  • the air come out of the guide passage 221 in accordance with the second preferred embodiment of the present invention can circulate without a great angular variation, with a sudden circulation angle change prevented, thereby preventing a circulation force loss of the drawn air.
  • a guide passage 321 similar to the second embodiment may be provided.
  • the third embodiment is favorable in providing the circulation force because the air inlet 320 is deviated from a center
  • the air is drawn to a center of one side of the cyclone
  • outer circumference can not provide a circulating force to the drawn air, and, contrary to this, may
  • the cyclone collector in accordance with the third embodiment of the present invention has the air inlet 320 in one side of the cyclone body 310 near
  • the external air can be subj ected to a circulating force at the moment
  • the air is drawn into the cyclone body 310, and the energy loss can be prevented. And, alike the
  • present invention is also applicable to the tangential direction cyclone collector.
  • FIGS. 11 and 12 illustrating a fourth embodiment of the present invention
  • a guide passage 421 similar to the second embodiment of the present invention is applied to the tangential direction cyclone collector. Since the air inlet 420 is located in a tangential direction to the cyclone body 410 in the fourth embodiment, an initial flow direction of the drawn air is the same with a circulation force occurring direction. Accordingly, the fourth embodiment of the present invention can provide a greater circulation force at an initial stage,
  • the guide passage can be applied either to a forward direction cyclone collector
  • the cyclone collector of the present invention having a guide passage provided thereto has the following advantages.
  • the increased circulation force owing to the guide passage can separate the contaminants from the air, more smoothly, with an increased overall dust collecting efficiency of the cyclone collector.

Abstract

Cyclone collector having an air inlet structure which can enhance a circulating force for better separation of contaminants from air, including a cyclone body (110, 210, 310 or 410), an air inlet (120, 220, 320 or 420) for drawing contaminants and air into the cyclone body (110, 210, 310 or 410), an air outlet (130) for discharging cleaned air from the cyclone body (110, 210, 310 or 410), a dust outlet (140) for discharging the contaminants separated from the air out of the cyclone body (110, 210, 310 or 410), and a guide passage (121, 221, 321 or 421) in communication with the air inlet (120, 220, 320 or 420) and extended along an inside surface of the cyclone body (110, 210, 310 or 410), for providing a circulation force to the air drawn into the cyclone body (110, 210, 310 or 410) while the air passes through the guide passage.

Description

CYCLONE DUST COLLECTOR
Technical Field
The present invention relates to a cyclone collector which can collect various contaniinants, such as dust, by using the cyclone principle, and more particularly, to a cyclone collector having an air inlet structure which can enhance a circulating force for better separation of contaminants from air.
Background Art
In general, the cyclone collector carries out dust collection by only collecting contaminants contained in air by using a centrifugal force, and discharging the air outside of the cyclone collector, which is mostly used as a vacuum cleaner domestically. The related art cyclone dust collectors will be explained with reference to FIGS. 1 to 4.
The related art cyclone collector is provided with a cyclone body 10, an air inlet 21 or 22 for drawing a /contaminants, an air outlet 30 for discharging the air cleaned in the cyclone body, a dust outlet 40 for discharging the contaminants drawn into the cyclone body together with the air, and a dust box 50 for collecting the contaminant discharged through the dust outlet 40. Of the air inlets 21 and 22, there is an air inlet of a type located on the same line with the air outlet 30 as shown in FIGS. 1 and 2 for making a forward direction air flow, and a type formed on a circumference of the cyclone body 10 for leading an air flow tangential to the cyclone body as shown in FIGS. 3 and 4.
The operation of a forward direction cyclone collector will be explained in detail with reference to FIGS. 1 and 2.
When a suction force is generated through one side of the cyclone body 10, i.e., the air outlet 30, the air containing dust is drawn through the air inlet 21 in the cyclone body 10. As
there is circulating force generating means 60 having a plurality of blades 61 for providing a
circulating force to the drawn air in the cyclone body 10, the drawn air is guided by the circulating
force generating means to circulate along an inside surface of the cyclone body 10. In this
process, the dust contained in the air moves along the inside wall of the cyclone body and, is
discharged into the dust box 50 via the dust outlet 40 by the centrifugal force, and the air is
discharged out of the cyclone body 10 through the air outlet 30. The dust is subjected to the
centrifugal force in the cyclone body 10 due to mass of the dust. That is, according to F = mrω2(F
: centrifugal force, m : mass of an object, r : a distance from a center of the cyclone body to the
object, and co = angular acceleration), though the air having a mass close to zero is almost not
subjected to the centrifugal force, the dust with some mass is subjected to the centrifugal force,
to be pressed onto, and circulate along the inside wall of the cyclone body. However, the cyclone
collector has a problem in that the foregoing forward direction cyclone collector should be
provided with means for generating circulation in the cyclone body additionally, that causes a
structure of the cyclone collector complicated in overall. A cyclone collector designed for solving
the problem is a tangential direction cyclone collector as shown in FIGS. 3 and 4, in which the
air inlet 22 is formed tangential to the cyclone body 10. In such a tangential direction cyclone collector, the air is introduced into the cyclone body in a tangential direction to the cyclone body, to circulate around the inside wall of the cyclone body, the circulation generating means 60 may not be provided, additionally.
The operation of the tangential direction cyclone body will be explained in detail with reference to FIGS. 3 and 4.
When a suction force is generated through one side of the cyclone body 10, i.e., the air outlet 30, the air containing the dust is drawn through the air inlet 22. Since the air inlet 22 is
formed tangential to one side of the circumference of the cyclone body, the air drawn through the
air inlet circulates along the inside wall surface of the cyclone body. And, as shown in a dashed
line in FIG. 3, the drawn air circulates in a state the circulation is sloped by 'θ' toward the air
outlet actually due to the continuous suction force from the air outlet 30. A process of separating
the contaminants is the same with the forward direction cyclone collector, of which explanation
will be omitted.
However, though the air inlet 22 is provided to be tangential to the cyclone body 10, the
tangential direction cyclone collector can not provide a great circulation force because the air
drawn into the cyclone body 10 through the air inlet 22 is opened to an inside space of the cyclone
body 10, directly. That is, at the moment the air is drawn into the cyclone body 10, due to the
suction force, the air moves toward the air outlet 30 before the air circulates. At the end, as
shown in FIG.4, the air drawn into the cyclone body makes almost no circulation in a range about
"A", and the circulation is started after the air is out of the range "A", which causes an weakening
of an overall circulation force, that impedes a smooth separation of the contaminants from the air. In order to solve the foregoing problem, a flow radius of the drawn air should be made greater
for providing an adequate centrifugal force. This solution requires a large sized cyclone collector.
Disclosure of the Invention
Accordingly, the present invention is directed to a cyclone collector that substantially
obviates one or more of the problems due to limitations and disadvantages of the related art.
An object of the present invention is to provide a cyclone collector which can make a
circulation force greater.
Another object of the present invention is to provide a cyclone collector which has a smaller size without drop of a dust collecting performance.
Additional features and advantages of the invention will be set forth in the description
which follows, and in part will be apparent from the description, or may be learned by practice
of the invention. The objectives and other advantages of the invention will be realized and
attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
To achieve these and other advantages and in accordance with the purpose of the present
invention, as embodied and broadly described, the cyclone collector includes a cyclone body, an
air inlet for drawing contaminants and air into the cyclone body, an air outlet for discharging
cleaned air from the cyclone body, a dust outlet for discharging the contaminants separated from
the air out of the cyclone body, and a guide passage in communication with the air inlet and
extended along an inside surface of the cyclone body, for providing a circulation force to the air drawn into the cyclone body while the air passes through the guide passage.
The air inlet is formed in a center, or near to an outside circumference, of one side of the cyclone body, and the guide passage has a fixed cross section.
The air inlet is formed in a tangential direction to the cyclone body, and the guide passage has a fixed cross section.
It is preferable that the guide passage has a cross section gradually becoming the greater toward a longitudinal direction of the cyclone body as it goes the farther from the air inlet.
It is preferable that the guide passage has a length shorter than a length of an inside circumference of the cyclone body, but longer than 1/4 of the length of the inside circumference of the cyclone body.
Thus, the present invention can increase a circulation force of the air drawn into the cyclone body and reduce a size of the cyclone collector.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.
Brief Description of the Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention: In the drawings:
FIG. 1 illustrates a perspective view of a related art forward direction cyclone collector, with a partial cut away view;
FIG.2 illustrates a section of the related art forward direction cyclone body shown in FIG.
1;
FIG. 3 illustrates a perspective view of a related art tangential direction cyclone collector;
FIG. 4 illustrates a section of the related art tangential direction cyclone body shown in
FIG. 3;
FIG. 5 illustrates a partial perspective view of a cyclone collector in accordance with a first preferred embodiment of the present invention;
FIG. 6 illustrates a section of the cyclone collector shown in FIG. 5;
FIG. 7 illustrates a partial perspective view of a cyclone collector in accordance with a
second preferred embodiment of the present invention;
FIG. 8 illustrates a section of the cyclone collector shown in FIG. 7;
FIG. 9 illustrates a partial perspective view of a cyclone collector in accordance with a
third preferred embodiment of the present invention;
FIG. 10 illustrates a section of the cyclone collector shown in FIG. 9;
FIG. 11 illustrates a partial perspective view of a cyclone collector in accordance with a
fourth preferred embodiment of the present invention; and,
FIG. 12 illustrates a section of the cyclone collector shown in FIG. 11. Best Mode for Carrying Out the Invention
Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In explanation of the embodiment, elements identical to the related art will be given the same names and reference
symbols with the related art, and explanation of the same will be omitted. FIG. 5 illustrates a partial perspective view of a cyclone collector in accordance with a first preferred embodiment
of the present invention, and FIG. 6 illustrates a section of the cyclone collector shown in FIG.
5. The present invention suggests to provide a cyclone collector having a guide passage in
communication with an air inlet and extended along an inside surface of the cyclone body.
Referring to FIGS. 5 and 6, the cyclone collector in accordance with a first preferred
embodiment of the present invention includes an air inlet 120 at a center of one side thereof, and
a guide passage 121 having a fixed cross section extended a length along an inside surface of the
cyclone body 110, for providing an adequate circulation force to the air drawn through the air
inlet 120 in a process passing through the guide passage 121. It is preferable that the guide
passage 121 should be extended more than a length which can induce the air to have a circulation force greater than a certain level, which is longer than 1/4 of a circumferential length but shorter
than a full length of the circumferential length of the cyclone body 110. If the guide passage 121
is shorter than approx. 1/4 of the circumferential length, a flow length is too short to provide an
adequate circulation force. Opposite to this, if the guide passage 121 is made longer than the
circumferential length of the cyclone body 110, with a portion of the guide passage 121
overlapped in a longitudinal direction of the cyclone body 110, a section of the cyclone body 110 within which the drawn air is subjected to a centrifugal force, i.e., an actual contaminant separation section, is shortened, that is not preferable because there can be an actual drop of a dust collecting efficiency of the cyclone body. However, the length of the guide passage 121 should not be necessarily limited to the above range, and, if necessary, it is preferable that the range is adjusted properly for providing an adequate circulation force to the air drawn into the cyclone body 110.
The operation of the cyclone collector in accordance with a first preferred embodiment of the present invention will be explained, in detail.
Upon a suction force is generated through the air outlet 130 connected to suction force
generating means(not shown), external air containing contaminants is drawn into the cyclone
body 110 through the air inlet 120. As the suction force generating means is general means of
generating the suction force by using a suction force of a fan driven by a motor, the suction force
generating means will be neither shown nor explained. Then, the drawn external air actually circulates along a great circulation radius during a process of drawing the air, since the guide
passage 121 in communication with the air inlet 120 is extended along the inside surface of the
cyclone body 110 such that the guide passage 121 has a fixed curvature. When the drawn air
comes out of the guide passage 121, the air can start circulation right away close to the inside
surface of the cyclone body 110 by the circulation force the air obtains while the air passes
through the guide passage 121. In this instance, as explained, the various contaminants contained
in the external air is subjected to a centrifugal force greater than the air, the contaminants are
pressed onto, and move along the inside surface of the cyclone body 110, and discharged into the dust box 150 through the dust outlet 140, and the cleaned air escapes through the air outlet 30. In this instance, the various contaminants contained in the air can be subjected to a centrifugal force greater than in the case of the related art cyclone collector, because the contaminants are subjected to a centrifugal force for the first time during the contaminants flow along the guide
passage 121, that allows better separation of the contaminants from the air. Moreover, since the guide passage 121 is extended, not along a length of the cyclone body, but along the inside
circumferential surface of the cyclone body 110, the circulation force of the drawn air can be increased without an actual increase of the cyclone collector.
In the meantime, the present invention is not limited to the aforementioned form, but there
can be various modifications and variations in the cyclone collector of the present invention. FIG.
7 illustrates a partial perspective view of a cyclone collector in accordance with a second
preferred embodiment of the present invention, and FIG. 8 illustrates a cross section of the
cyclone collector shown in FIG. 7.
Referring to FIGS. 7 and 8, the guide passage 221 is formed such that a cross section of
the guide passage 221 becomes gradually the greater toward a longitudinal direction of the
cyclone body 210 as it goes the farther from the air inlet. That is, one side surface 221a of the guide passage is formed to have an angle 'θ' to a cross sectional plane of the cyclone body 210.
Therefore, the air coming out of the guide passage 221 circulates, with a circulation angle 'θ'. As
discussed, the air drawn into the cyclone body 210 circulates with a circulation angle 'θ' forced
by the suction force from the air outlet 230. And, there is an energy loss from the drawn air as
much as a variation of the circulation angle, i.e., a circulation path. However, the air come out of the guide passage 221 in accordance with the second preferred embodiment of the present invention can circulate without a great angular variation, with a sudden circulation angle change prevented, thereby preventing a circulation force loss of the drawn air.
And, as the third embodiment of the present invention shown in FIGS.9 and 10, when the air inlet 320 is formed in one side of the cyclone body 310 near to an outside circumference, a guide passage 321 similar to the second embodiment may be provided. The third embodiment is favorable in providing the circulation force because the air inlet 320 is deviated from a center
of one side, to be provided in one side of the cyclone body 310 near to the outside circumference
thereof. In the first or second embodiment, the air is drawn to a center of one side of the cyclone
body 110 or 210, guided to outer circumference of the cyclone body 110 or 210 by the guide
passage 121 or 221, to obtain a circulating force. Such a guidance of the drawn air toward the
outer circumference can not provide a circulating force to the drawn air, and, contrary to this, may
cause an energy loss. However, since the cyclone collector in accordance with the third embodiment of the present invention has the air inlet 320 in one side of the cyclone body 310 near
to the outside circumference, the external air can be subj ected to a circulating force at the moment
the air is drawn into the cyclone body 310, and the energy loss can be prevented. And, alike the
second embodiment of the present invention, the circulation force loss of the air come out of the
guide passage 321 can be prevented. In the meantime, the guide passage of the present invention
is applicable not only to the forward direction cyclone collector. That is, the guide passage of the
present invention is also applicable to the tangential direction cyclone collector.
In FIGS. 11 and 12 illustrating a fourth embodiment of the present invention, a variation is shown, in which a guide passage 421 similar to the second embodiment of the present invention is applied to the tangential direction cyclone collector. Since the air inlet 420 is located in a tangential direction to the cyclone body 410 in the fourth embodiment, an initial flow direction of the drawn air is the same with a circulation force occurring direction. Accordingly, the fourth embodiment of the present invention can provide a greater circulation force at an initial stage,
with an improved efficiency of the cyclone collector. And, alike the second or third embodiment,
since the drawn air can circulate without a great change of circulation angle, a circulation force loss of the drawn air in the cyclone body 410 can be prevented.
In the meantime, alike the first embodiment of the present invention, a guide passage with
a fixed cross section can be applicable to the third or fourth embodiment of the present invention,
basically. That is, the guide passage can be applied either to a forward direction cyclone collector
having an air inlet in one side near to an outside circumference, or to a tangential direction
cyclone collector.
It will be apparent to those skilled in the art that various modifications and variations can
be made in the cyclone collector of the present invention without departing from the spirit or
scope of the invention. Thus, it is intended that the present invention cover the modifications and
variations of this invention provided they come within the scope of the appended claims and their
equivalents.
Industrial Applicability
The cyclone collector of the present invention having a guide passage provided thereto has the following advantages.
First, the increased circulation force owing to the guide passage can separate the contaminants from the air, more smoothly, with an increased overall dust collecting efficiency of the cyclone collector.
Second, as the guide passage is formed within the cyclone body, there is no actual increase of the cyclone collector. Accordingly, an overall size of the cyclone collector can be reduced while an efficiency of the cyclone collector is increased.
Other than this, since the air come out of the guide passage circulates according to a given
flow angle without any influence from the suction force, a loss of the circulation force of the
drawn air is prevented, with subsequent reduction of noise and prevention of a dust collecting
efficiency.

Claims

Claims
1. A cyclone collector comprising: a cyclone body; an air inlet for drawing contaminants and air into the cyclone body;
an air outlet for discharging cleaned air from the cyclone body;
a dust outlet for discharging the contaminants separated from the air out of the cyclone body; and, a guide passage in communication with the air inlet and extended along an inside surface
of the cyclone body, for providing a circulation force to the air drawn into the cyclone body while
the air passes through the guide passage.
2. A cyclone collector as claimed in claim 1, wherein the air inlet is formed in a center of one side of the cyclone body, and the guide passage has a fixed cross section.
3. A cyclone collector as claimed in claim 2, wherein the guide passage has a cross section
gradually becoming the greater toward a longitudinal direction of the cyclone body as it goes the
farther from the air inlet.
4. A cyclone collector as claimed in claim 1, wherein the air inlet is formed in one side
of the cyclone body near to an outside circumference thereof, and the guide passage has a fixed cross section.
5. A cyclone collector as claimed in claim 4, wherein the guide passage has a cross section
gradually becoming the greater toward a longitudinal direction of the cyclone body as it goes the farther from the air inlet.
6. A cyclone collector as claimed in claim 1 , wherein the air inlet is formed in a tangential
direction to the cyclone body, and the guide passage has a fixed cross section.
7. A cyclone collector as claimed in claim 6, wherein the guide passage has a cross section gradually becoming the greater toward a longitudinal direction of the cyclone body as it goes the farther from the air inlet.
8. A cyclone collector as claimed in claim 1, wherein the guide passage has a length shorter than a length of an inside circumference of the cyclone body, but longer than 1/4 of the
length of the inside circumference of the cyclone body.
PCT/KR2000/000210 1999-08-24 2000-03-15 Cyclone dust collector WO2001014066A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU34603/00A AU3460300A (en) 1999-08-24 2000-03-15 Cyclone dust collector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1999/35166 1999-08-24
KR1019990035166A KR20010018973A (en) 1999-08-24 1999-08-24 structure for inhalation passage of air in multi cyclone dust collector

Publications (1)

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PCT/KR2000/000210 WO2001014066A1 (en) 1999-08-24 2000-03-15 Cyclone dust collector

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2370980A (en) * 2001-01-10 2002-07-17 Samsung Kwangju Electronics Co Dust collecting apparatus for a vacuum cleaner
FR2832915A1 (en) * 2001-12-05 2003-06-06 Seb Sa WASTE SEPARATION DEVICE FOR VACUUM CLEANER
WO2006031009A1 (en) * 2004-09-15 2006-03-23 Lg Electronics Inc. Cyclone collector
WO2006038757A1 (en) * 2004-10-08 2006-04-13 Lg Electronics Inc. Cyclone collector

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100444552B1 (en) * 2001-09-13 2004-08-16 삼성광주전자 주식회사 Cyclone dust collector for vacuum cleaner
KR20030094872A (en) * 2002-06-08 2003-12-18 엘지전자 주식회사 Cyclone dust collector
WO2011016624A2 (en) * 2009-08-03 2011-02-10 (주)브이엘시스템 Fan module having a dust-collecting function, and a dust-collecting device employing the same
KR102649742B1 (en) * 2019-08-07 2024-03-20 주식회사 엘지화학 Gasoline fractionator with particle separation function
KR102649737B1 (en) * 2019-08-07 2024-03-20 주식회사 엘지화학 Gasoline fractionator with particle separation function
KR102188724B1 (en) * 2019-08-14 2020-12-09 전진범 Cyclone dust-collecting apparatus

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US4067814A (en) * 1975-10-30 1978-01-10 Enso-Gutzeit Osakeyhtio Hydrocyclone
JPS56100661A (en) * 1980-01-16 1981-08-12 Kobe Steel Ltd Cyclone separator
EP0489468A1 (en) * 1990-12-05 1992-06-10 Koninklijke Philips Electronics N.V. Vacuum cleaner
US5596982A (en) * 1994-05-19 1997-01-28 Paul Ritzau Pari-Werk Gmbh Apparatus for drying and buffering aerosols

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US4067814A (en) * 1975-10-30 1978-01-10 Enso-Gutzeit Osakeyhtio Hydrocyclone
JPS56100661A (en) * 1980-01-16 1981-08-12 Kobe Steel Ltd Cyclone separator
EP0489468A1 (en) * 1990-12-05 1992-06-10 Koninklijke Philips Electronics N.V. Vacuum cleaner
US5596982A (en) * 1994-05-19 1997-01-28 Paul Ritzau Pari-Werk Gmbh Apparatus for drying and buffering aerosols

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2370980A (en) * 2001-01-10 2002-07-17 Samsung Kwangju Electronics Co Dust collecting apparatus for a vacuum cleaner
GB2370980B (en) * 2001-01-10 2003-03-05 Samsung Kwangju Electronics Co Dust collecting apparatus for a vacuum cleaner
US6640385B2 (en) 2001-01-10 2003-11-04 Samsung Kwangju Electronics Co., Ltd. Cyclone dust collecting apparatus for a vacuum cleaner
FR2832915A1 (en) * 2001-12-05 2003-06-06 Seb Sa WASTE SEPARATION DEVICE FOR VACUUM CLEANER
WO2003047412A2 (en) * 2001-12-05 2003-06-12 Seb Sa Waste separating device for vacuum cleaner
WO2003047412A3 (en) * 2001-12-05 2003-12-11 Seb Sa Waste separating device for vacuum cleaner
US7160347B2 (en) 2001-12-05 2007-01-09 Seb S.A. Waste separating device for vacuum cleaner
WO2006031009A1 (en) * 2004-09-15 2006-03-23 Lg Electronics Inc. Cyclone collector
AU2005283239B2 (en) * 2004-09-15 2008-12-04 Lg Electronics Inc. Cyclone collector
US7731771B2 (en) 2004-09-15 2010-06-08 Lg Electronics Inc. Cyclone collector
WO2006038757A1 (en) * 2004-10-08 2006-04-13 Lg Electronics Inc. Cyclone collector
US7842112B2 (en) 2004-10-08 2010-11-30 Lg Electronics Inc. Cyclone collector

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KR20010018973A (en) 2001-03-15

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