FIELD: engines and pumps.
SUBSTANCE: vacuum cleaner consists of case, dust collector, air-blowing fan unit, outlet duct for air flowing out of outlet aperture of the air blowing fan unit. Duct is several times curved and produces several flow ducts. At that the outlet airflow duct creates a space between the dust collector and air blowing fan unit. An air outlet filter is installed in the outlet air flow duct at the point where the cross section area of the duct exceeds the cross section area of the outlet aperture of the air blowing fan unit. Air, flowing out of the air blowing fan unit, is let and filtered through the said air flow ducts.
EFFECT: efficient reduction of noise produced by a running vacuum cleaner.
16 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CYCLONE VACUUM CLEANER (VARIANTS) | 2006 |
|
RU2323675C1 |
| VACUUM CLEANER (OPTION) | 2006 |
|
RU2328963C2 |
| DEVICE TO SEPARATE DUST FOR VACUUM CLEANER (VERSIONS) | 2008 |
|
RU2418565C1 |
| DEVICE FOR DUST SEPARATION OF VACUUM CLEANER | 2008 |
|
RU2412637C1 |
| VACUUM CLEANER (OPTION) | 2006 |
|
RU2328961C1 |
| DUST-COLLECTING DEVICE OF VACUUM CLEANER (VERSIONS) | 2008 |
|
RU2374977C2 |
| VERTICAL VACUUM CLEANER (VERSIONS) | 2003 |
|
RU2258451C1 |
| VACUUM CLEANER | 2007 |
|
RU2428916C2 |
| VACUUM CLEANER (VERSIONS) | 2008 |
|
RU2375951C2 |
| ELECTRIC VACUUM CLEANER | 2009 |
|
RU2498761C2 |
