A cyclonic separator and a vacuum cleaner which efficiently separates dust, collect the dust without re-scattering it and make low noise are provided. In a primary cyclone portion 10 , a primary swirl chamber 12 swirls air containing dust sucked from a primary inlet 11 , and thereby, separates a first dust and a second dust from the air containing dust to collect them respectively in a zero-order dust case 114 which is provided at a side of the primary swirl chamber 12 and communicates with a zero-order opening portion 113 provided at a side wall, and a primary dust case 14 provided at a lower side of the primary swirl chamber 12 . In a secondary cyclone portion 20 , a secondary inlet 21 with an opening area smaller than that of a primary outlet body 15 sucks air exhausted from the primary outlet body 15 , a secondary swirl chamber 22 swirls the first air to separate the second dust which is finer than the first dust from the first air to collect the second dust in a secondary dust case 24 provided at a lower side of the secondary swirl chamber 12 . With regard to the cyclonic separator with such a configuration, the zero-order dust case 114 is formed to cover at least a part of the secondary cyclone portion 20.

Claims

15 · 2 independent · depth 3

15 granted claims

›1.independentA cyclone separator comprising:na primary cyclone portion including a primary inlet through which air containing dust sucked from outside enters, a pr…+6

›2.↳ 1The cyclone separator according to claim 1, wherein the opening portion is provided in a side wall portion of the primary swirl chamber where a tangen…d2

›3.↳ 1The cyclone separator according to claim 1, wherein the primary outlet is formed in a side wall of a primary outlet body protruding into the swirl cha…d2+1

›5.↳ 1The cyclone separator according to claim 1, wherein a sectional area of the primary inlet is larger than a sectional area of the secondary inlet.d2

›6.↳ 1The cyclone separator according to claim 1, wherein the primary swirl chamber in the primary cyclone portion and the secondary swirl chamber in the se…d2

›7.↳ 1A vacuum cleaner comprising a cyclone separator according to claim 1.d2

›8.independentA cyclone separator comprising:na primary inlet configured to suck in air containing dust from outside the cyclone separator;a primary swirl chamber c…+7

›9.↳ 8The cyclone separator according to claim 8, wherein the opening portion is provided in a side wall portion of the primary swirl chamber where a tangen…d2

›10.↳ 8The cyclone separator according to claim 8, wherein the primary outlet is formed in a side wall of a primary outlet body protruding into the swirl cha…d2+1

›12.↳ 8The cyclone separator according to claim 8, wherein a sectional area of the primary inlet is larger than a sectional area of the secondary inlet.d2

›13.↳ 8The cyclone separator according to claim 8, wherein the primary swirl chamber in the primary cyclone portion and the secondary swirl chamber in the se…d2

›14.↳ 8The cyclone separator according to claim 8, wherein the first dust particles have a greater specific gravity than the second dust particles.d2

›15.↳ 8A vacuum cleaner comprising a cyclone separator according to claim 8.d2

Classifications

2 codes

IPC · International Patent Classification

Section A — Human necessities

A47L9/16
A47L9/00

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4.8 y

1,748 days filing → grant

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non-final + final

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no RCE

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Robert Scruggs

art unit 3723 · TC 3700

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1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20130025086 A1	31 Jan 2013

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