Patent US4330900A successfully refreshed from Google Patents.
Patent EP0966912A1 successfully refreshed from Google Patents.
EP0966912A1
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Cyclone separator device for a vacuum cleaner
Assignee: Electrolux AB
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Filing: 1999-06-17
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Granted: —
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Expires: 2019-06-17
Abstract
Abstract A vacuum cleaner cyclone separator having a cyclone with a first end wall, a second opposite end wall (36), and an intermediate part (38), which has the shape of either a cylinder or, at least partly, an up-side-down truncated cone. The intermediate part has an outlet opening (39) for particles through which particles separated by the cyclone leave from the intermediate part toward the second end wall. The cyclone is, close to the first end wall, provided with a generally tangentially-directed air inlet (33) for dust laden air and also has a tube shaped air outlet extending from the intermediate part to the first end wall and communicating with a vacuum source. The particle outlet opening (39) continues into a separation part (40) having a side wall opening through which the particles leave mainly perpendicular to the rotational axis (R) of the vortex created in the cyclone to a particle collecting (27) container placed outside the separation part (40).
Inventors
- 👤 Lars Tuvin
- 👤 Lars Kilström
- 👤 Stefan Petersson
- 👤 Pastuhoff
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 19:39
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/14; B04C5/185; A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/362; A47L9/00; A47L9/10; A47L9/102; A47L9/12; A47L9/122; A47L9/14; A47L9/1418; A47L9/16; A47L9/1608; A47L9/165; A47L9/1658; A47L9/1666; A47L9/1683; A47L9/1691; Y; Y10; Y10S; Y10S55/00; Y10S55/03
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
169 words
A device for a vacuum cleaner comprising a cyclone separator having a cyclone
comprising a first end wall (35), a second, opposite end wall (135), and an intermediate
part (38,130), said intermediate part being either shaped as a cylinder or, at least partly,
a truncated cone, the intermediate part has a particle outlet opening (39,131) through
which particles separated by the cyclone leave from the intermediate part toward the
second end wall, the cyclone, close to the first end wall, being provided with a generally
tangentially-directed air inlet (33,129) for dust laden air and having a tube-shaped air
outlet (50,142) extending from the first end wall (35) into the intermediate part and
communicating with a vacuum source (15,111), characterized in that said particle outlet
opening (39,131) continues into a separation part (40,134) having a side wall opening
(41,137) through which particles leave generally perpendicular to an axis of rotation (R)
of a vortex created in the cyclone to a particle collecting (27) container placed outside
the separation part (40,134).
Claim 2
Dependent Claim
36 words
Device according to claim 1, characterized in that it comprises a coarse
separator (25,118) that, with regard to a direction of air flowing through the vacuum
cleaner, is connected in series with and before the cyclone.
Claim 3
Dependent Claim
41 words
Device according to claim 1 or 2, characterized in that the cyclone is positioned
such that said axis of rotation (R) is inclined less than 45° to a horizontal plane when the
vacuum cleaner is placed on a horizontal surface (U).
Claim 4
Dependent Claim
52 words
Device according to any of the preceding claims, characterized in that the side
wall opening (41,137) of the separation part (40,134) continues into a channel (42), said
channel having a wall (43,136) which, as seen in a direction which is perpendicular to
a length of the axis of rotation (R), is spiral-shaped.
Claim 5
Dependent Claim
38 words
Device according to any of claims 2-4, characterized in that each of the coarse
separator (25), the cyclone, and the collecting container (27) are provided with a wall
part that is integral with a removable cover plate (37).
Claim 6
Dependent Claim
34 words
Device according to claim 5, characterized in that the coarse separator (25), the
cyclone, the collecting container (27), and the cover plate constitute a removable unit
(14) arranged in a vacuum cleaner housing (10).
Claim 7
Dependent Claim
38 words
Device according to claim 6, characterized in that the unit (14) is provided with
a handle (60) which, when the unit is placed in the vacuum cleaner housing (10), also
serves as a handle for the vacuum cleaner.
Claim 8
Dependent Claim
54 words
Device according to claim 5, 6 or 7, characterized in that the coarse separator
(25), the cyclone, and the collecting container (27) have generally equal lengths and are
placed beside and parallel to one another, the cover plate (37) being an end wall for the
coarse separator, the dust container, and the cyclone chamber.
Claim 9
Dependent Claim
26 words
Device according to any of claims 5 - 8, characterized in that the tube shaped
air outlet (50) is permanently connected to the cover plate (37).
Claim 10
Dependent Claim
42 words
Device according to any of the preceding claims, characterized in that the length
of the cyclone between the end walls (35,36) is between about 100 to 300 mm and a
maximum diameter of the cyclone is between about 50 to 150 mm.
Claim 11
Dependent Claim
34 words
Device according to claim 10, characterized in that the length of the tube shaped
air outlet (50) extending into the cyclone is between about 20 to 50 % of the length of the
cyclone.
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