# US 2006/0230724 A1 · Cyclone dust separating apparatus for vacuum cleaner and vacuum cleaner having the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2006/0230724 A1 - Document ID: US20060230724A1 - Status: Published application - Kind: A1 - Application number: 11/318,177 - Filed: 2005-12-23 - Published: 2006-10-19 - Earliest claimed: 2005-03-29 - Assignees: Samsung Gwangju Electronics Co., Ltd. - Inventors: Jung-gyun Han; Jang-keun Oh; Min-ha Kim - Web page: https://patentgrep.com/patent/US20060230724A1 ## CPC - A47L 9/1625: {for series flow} - A47L 9/1641: {for parallel flow} - A47L 9/1683: {Dust collecting chambers; Dust collecting receptacles} - B01D 45/14: generated by rotating vanes, discs, drums or brushes - B04C 5/24: Multiple arrangement thereof {(combination types according to other /00 groups, B04C7/00)} - B04C 5/26: for series flow - Y10S 55/03: Vacuum cleaner - A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08) - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - B04C: APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES ({centrifugal separation of water from steam B01D45/12;} jet mills B02C19/06; {wind sifters B07B7/00;} cyclonic type combustion apparatus F23; {vortex burners for cyclone-type combustion apparatus F23D1/02; cyclonic type combustion apparatus for gas turbines F23R3/00}) - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract A cyclone dust separating apparatus has a first cyclone chamber for separating particles from the externally-drawn fluid by centrifugal force, one or more second cyclone chambers for separating particles from the fluid discharged from the first cyclone chamber by centrifugal force, and one or more third cyclone chambers for separating particles from the fluid discharged from the second cyclone chambers, and causing the fluid to be discharged out via a discharge passage. The second and the third cyclone chambers are arranged in radial relation with respect to the first cyclone chamber, and thus, surround the first cyclone chamber. Therefore, the cyclone dust separating apparatus provides multi-stage centrifugal cleaning process and improved cleaning efficiency, while remaining compact-sized. ## Claims ### Claim 1 A cyclone dust separating apparatus for separating particles from an externally-drawn fluid, comprising: a first cyclone chamber for separating first particles from the externally-drawn fluid by centrifugal force; one or more second cyclone chambers for separating second particles from the fluid discharged from the first cyclone chamber by centrifugal force; and one or more third cyclone chambers for separating third particles from the fluid discharged from the one or more second cyclone chambers, and causing the fluid to be discharged out via a discharge passage, the one or more second cyclone chambers and the one or more third cyclone chambers being arranged along an outer boundary of the first cyclone chamber. ### Claim 2 (depends on 1) The cyclone dust separating apparatus of claim 1, wherein the one or more second cyclone chambers have an inner diameter smaller than that of the first cyclone chamber and larger than that of the cyclone chambers third cyclone chambers. ### Claim 3 (depends on 2) The cyclone dust separating apparatus of claim 2, wherein the one or more third cyclone chambers comprise two or more third cyclone chambers are communicated with one outlet of each of the one or more second cyclone chambers. ### Claim 4 (depends on 3) The cyclone dust separating apparatus of claim 3, wherein the one or more third cyclone chambers are arranged between the second cyclone chambers such that the second and the third cyclone chambers are arranged in a circle with respect to the first cyclone chamber. ### Claim 5 (depends on 4) The cyclone dust separating apparatus of claim 4, wherein the two or more third cyclone chambers comprise at least a pair of third cyclone chambers communicated with one outlet of each of the second cyclone chambers, and the at least a pair of third cyclone chambers are in mirror-symmetrical relation with respect to the outlet of the second cyclone chamber. ### Claim 6 (depends on 5) The cyclone dust separating apparatus of claim 5, wherein the first to third cyclone chambers are formed independently from each other. ### Claim 7 (depends on 2) The cyclone dust separating apparatus of claim 2, further comprising: a cyclone body comprising an inlet through which the externally-drawn fluid is guided to first to third cyclone chambers; a first cover comprising the discharge passage, and covering an upper end of the cyclone body which is open; and a second cover located between the first cover and the cyclone body, wherein a first, a second and a third passages are formed according to the connecting of the second cover and the cyclone body, the first passage connecting an outlet of the first cyclone chamber with inlets of the second cyclone chambers, the second passage connecting outlets of the second cyclone chambers with inlets of the third cyclone chambers, and the third passage guiding the fluid exiting from the third cyclone chambers towards the discharge passage. ### Claim 8 (depends on 7) The cyclone dust separating apparatus of claim 7, wherein the second cover comprises: a first curvature part and a second curvature part formed by curving a part of the second cover, forming the first passage when the cyclone body is connected with the second cover; and a hollow connecting pipe extended toward the upper side of the second cover, connecting the outlets of the second cyclone chambers with the third chamber. ### Claim 9 (depends on 7) The cyclone dust separating apparatus of claim 7, further comprising: a contaminant receptacle removably mounted to a lower end of the cyclone body which is open, to collect the particles separated in the first to third cyclone chambers, the contaminant receptacle comprising: a first collecting space, a second collecting space, and a partition located in the contaminant receptacle, separating the first space from the second space, wherein according to the connection of the cyclone body with the contaminant receptacle, the first collecting space is communicated with the first cyclone chamber, and the second collecting space is communicated with the second and the third cyclone chambers, respectively. ### Claim 10 A vacuum cleaner comprising: an air suction port through which a contaminant-laden air is drawn from a surface being cleaned; a suction motor for generating a suction force at the air suction port; and a cyclone dust separating apparatus for separating contaminants from the drawn contaminant-laden air, the cyclone dust separating apparatus comprising: a first cyclone chamber for separating the contaminants from the air by centrifugal force, one or more second cyclone chambers for separating the contaminants from the air discharged from the first cyclone chamber by centrifugal force; and one or more third cyclone chambers for separating the contaminants from the air discharged from the one or more second cyclone chambers by centrifugal force, wherein the one or more second cyclone chambers have an inner diameter smaller than that of the first cyclone chamber and larger than that of the one or more third cyclone chambers.