Title:
DUST FLOCCULATING PASSAGE, DUST FLOCCULATING METHOD, AND VACUUM CLEANER
Document Type and Number:
WIPO Patent Application WO/2008/044468
Kind Code:
A1
Abstract:
Provided are a dust flocculating passage, which is enabled with a simple structure
to promote the flocculation of particles in dust by increasing the number of particle
collisions, thereby to reduce the particle number and to enlarge the apparent
particle diameter, and a dust flocculating method and a vacuum cleaner. The
dust flocculating passage (10) comprises a passage (11) for a gas to pass therethrough,
a wall (12) for forming the passage (11), and vortex generating means for generating
vortexes in the gas flowing in the passage (11). The vortex generating means
is so arranged on the inner face of the wall (12) as to give a heterogeneous velocity
distribution to the gas flow near the wall (12). The vortex generating means
includes either a turning portion (13) having a wall portion protruding from
the inner face of the wall (12) into the passage (11) so as to turn the gas flow in
the passage (11), or protrusions from the inner face of the wall (12) so as to make
heterogeneous the velocity of the passing gas.
Inventors:
KATOH YASUAKI
OHTSUKA MASAKI
TOMOMURA YOSHINOBU
KITATANI KAZUYA
YOSHIDA CHOJI
OHTSUKA MASAKI
TOMOMURA YOSHINOBU
KITATANI KAZUYA
YOSHIDA CHOJI
Application Number:
PCT/JP2007/068628
Publication Date:
April 17, 2008
Filing Date:
September 26, 2007
Export Citation:
Assignee:
SHARP KK (JP)
KATOH YASUAKI
OHTSUKA MASAKI
TOMOMURA YOSHINOBU
KITATANI KAZUYA
YOSHIDA CHOJI
KATOH YASUAKI
OHTSUKA MASAKI
TOMOMURA YOSHINOBU
KITATANI KAZUYA
YOSHIDA CHOJI
International Classes:
A47L9/16; A47L9/24; B01D51/02; B03C3/15; B03C3/30; B03C3/36
Foreign References:
| JP2002320578A | 2002-11-05 | |||
| JPS63182014A | 1988-07-27 | |||
| JP2002320578A | 2002-11-05 | |||
| JPH09131522A | 1997-05-20 | |||
| JP2005324094A | 2005-11-24 | |||
| JP2517877B2 | 1996-07-24 | |||
| JP2004101411A | 2004-04-02 |
Other References:
"Basic Aerosol Science", MORIKITA PUBLISHING CO., LTD., pages: 17
"Powder Engineering", OHMSHA, LTD., pages: 91
"Powder Engineering", OHMSHA, LTD., pages: 91
Attorney, Agent or Firm:
KODA, Kazuyuki (Yao-minami Garden Terrace84-2, Wakabayashi-cho 1-chom, Yao-shi Osaka 38, JP)
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