SI22524A - Vacuum cleaner dust separator - Google Patents

Vacuum cleaner dust separator Download PDF

Info

Publication number
SI22524A
SI22524A SI200700143A SI200700143A SI22524A SI 22524 A SI22524 A SI 22524A SI 200700143 A SI200700143 A SI 200700143A SI 200700143 A SI200700143 A SI 200700143A SI 22524 A SI22524 A SI 22524A
Authority
SI
Slovenia
Prior art keywords
lamellae
separator
segments
blades
segment
Prior art date
Application number
SI200700143A
Other languages
Slovenian (sl)
Inventor
BENEDIK@Gašper
Original Assignee
DOMELL Elektromotorji@in@gospodinjski@aparatiL d.d.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DOMELL Elektromotorji@in@gospodinjski@aparatiL d.d. filed Critical DOMELL Elektromotorji@in@gospodinjski@aparatiL d.d.
Priority to SI200700143A priority Critical patent/SI22524A/en
Priority to PCT/SI2008/000036 priority patent/WO2008153506A1/en
Publication of SI22524A publication Critical patent/SI22524A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/102—Dust separators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Cyclones (AREA)

Abstract

A vacuum cleaner dust separator, preferentially a household vacuum cleaner's one, is executed from at least two mutually coaxially arranged segments (1), each of them executed as a cylinder mantle consisting of axially running lamellae (2) arranged one after another at intermediate slits (3), where a bottom (4) is foreseen in one of the edge segments (1), which continues with a tubular coaxially running extension (5) foreseen to be mounted on the axle of a turbine and which protrudes through an opening (6) executed in a virtual base opposite to the bottom (4). The lamellae (2) are shaped or arranged in the bottom-containing (4) segment (1) so that they exert as low resistance to air flow through the slits (3) between the said lamellae (2) as possible, whereas on the next segments (1), the lamellae (2) are shaped or arranged so that the resistance to air flow is increased within them, by which a smaller pressure drop of the air jet occurs in this part of the lamellae (2) in the separator's interior. At the exterior side of the segment (1) close to a flange (7), smaller lamellae (10) are executed to reduce the pressure drop of the air flowing through the part of the separator in the vicinity of the flange (7). Smaller lamellae (8) are executed on the flange (7) to seal the rotating separator against the casing.

Description

Predmet izuma [001] Predmet izuma je separator sesalnika za prah, prednostno gospodinjskega sesalnika za prah.The subject of the invention [001] The subject of the invention is a separator of a vacuum cleaner, preferably a household vacuum cleaner.

Tehnični problem [002] Tehnični problem, ki ga rešuje izum je, kako zasnovati tak separator sesalnika za prah, ki bo zagotavljal čim manjše podtlačne izgube v toku sesanega zraka, ko teče skozenj zato, da bistveno ne zmanjšuje sesalne zmožnosti sesalnika kot celote in da izloča (separira) delce v sesanem zračnem toku, ki so večji in/ali imajo večjo maso, kot je predpisana v različnih standardih ali priporočilih.Technical Problem [002] The technical problem solved by the invention is how to design such a vacuum cleaner separator that will provide as little vacuum loss as possible in the suction air flow through it so that it does not significantly reduce the suction capacity of the vacuum cleaner as a whole and that excretes (separates) particles in the intake air stream that are larger and / or larger in mass than prescribed in various standards or recommendations.

Znano stanje tehnike [003] Znanih je več tovrstnih izumov, ki so predstavljeni v različnih patentnih spisih.BACKGROUND OF THE INVENTION Several such inventions are known, which are presented in various patent documents.

[004] EP 1 261 269 (Hyla Proizvodnja, razvoj in trgovina d.o.o.) predstavlja izum separatoija, ki je sestavljena iz več, aksialno sestavljenih segmentov, v katerih so po obodu nameščene lopatice v obliki letalskega krila. Vse lopatice so pozicionirane glede na ohišje separatoija enako. Izkaže se, da tak separator dosega sicer soliden podtlak sesanega zraka na izstopu, vendar obstaja potreba po še večjem podtlaku pri istih njegovih vgradnih merah.[004] EP 1 261 269 (Hyla Manufacture, Development and Trade d.o.o.) is the invention of a separatoi consisting of several axially assembled segments in which aero wing blades are arranged around the circumference. All blades are positioned relative to the separatoi housing equally. Such a separator turns out to have a solid suction pressure at the outlet, but there is a need for even greater pressure at the same fitting dimensions.

34761.doc/lll-07/Vr [005] US 6,391,101 (Gustafson, Kassien) opisuje tovrstni izum, pri katerem je izpopolnjena oblika (prečni prerez) sicer enakih lopatic. Za separacijo delcev z večjo maso so po tem izumu predvidene še dodatne kolobaijasto razporejene nizke prosto štrleče lopatice, ki so nameščene na dnu separatoija.No. 34761.doc / yl-07 / Vr US 6,391,101 (Gustafson, Kassien) describes this invention, wherein the shape (cross section) of otherwise identical blades is perfected. For the separation of the higher mass particles, additional colobia-shaped, low freely projecting blades are provided according to the present invention, which are located at the bottom of the separatoi.

[006] Obstaja pa potreba po večji učinkovitosti separatoija v smislu manjšega padca tlaka sesanega zraka v njegovem območju, ker se s tem poveča učinkovitost sesalnika za prah, oziroma naprave kot celote ob ohranjanju zmožnosti izločevanja večjih delcev iz sesanega zraka.[006] However, there is a need for greater separatoi efficiency in terms of a smaller pressure drop in the intake air in its area, since this increases the efficiency of the vacuum cleaner, or device as a whole, while maintaining the ability to extract larger particles from the intake air.

Rešitev tehničnega problema [007] Opisani tehnični problem je rešen s separatoijem po izumu, katerega značilnost je v tem, da sestoji iz vsaj dveh koaksialno razporejenih cilindričnih segmentov z lopaticami, pri čemer so skupine lopatic posameznih navedenih segmentov usmeijene pod različnimi koti tako, da je podtlak znotraj celotnega separatoija sorazmerno enak.Solution to a Technical Problem [007] The technical problem described is solved by a separatoi according to the invention, characterized by the fact that it consists of at least two coaxially arranged cylindrical segments with blades, the groups of blades of each of said segments smiling at different angles such that the pressure inside the entire separatoy is relatively the same.

[008] Namreč, v separatorju poteka tok zračnega strujanja, ki teče iz okolice separatoija z višjim tlakom, skozi reže med lopaticami v notranjost separatoija, kjer potuje vzporedno z lopaticami od dna separatoija proti izhodu iz separatoija v smeri turbine, ki ustvaija zračni potlak. V notranjosti separatoija je zato potrebno urediti tlak in hitrost zračnega strujanja tako, da se podtlak sesanega zraka spreminja enakomerno od dna separatoija do izstopne odprtine za zrak v njem, da ne pride zaradi razlik v podtlaku do izgub zaradi škodljivega medsebojnega vpliva K temu namenu pripomore še dodaten turbinski segment na kolobaijasti prosti ploskvi, ki se vrti v veliki bližini ohišja in deluje tako, da izpihuje v manjši količini zrak radialno navzven in s tem dinamično tesni notranjost separatoija s podtlakom sesanega zraka od okolice z atmosferskim[008] Namely, in the separator there is a flow of air flowing from the surroundings of the higher-pressure separatoi through the slots between the blades into the interior of the separatoi, where it travels parallel to the blades from the bottom of the separatoi towards the outlet of the separator in the direction of the turbine, which produces air pressure. It is therefore necessary to regulate the pressure and velocity of the air flow inside the separatoi so that the suction air pressure varies uniformly from the bottom of the separator to the air outlet therein, so that no loss of harmful interference can occur due to differences in the pressure. an additional turbine segment on a circular free surface which rotates in close proximity to the housing and operates by blowing in a small amount of air radially outwards, thereby dynamically sealing the interior of the separatoy by suction air from the ambient atmosphere

34761 .doc/lll-07/Vr tlakom, da ostane tlačno stanje strujanja zraka znotraj separatoija brez zunanjega kvarnega vpliva.34761 .doc / yy-07 / Vr pressures to maintain the compressed air flow state within the separatio without external malfunction.

[009] Podrobneje je izum pojasnjen na osnovi opisa izvedbenega primera in risb, na katerih kaže sl. 1 persepktivni pogled separatoija po izumu, sl. 2 osni prerez separatoija po izumu, sl. 3 osni pogled separatoija po izumu s strani dna, in sl. 4 osni pogled separatoija po izumu s strani priključka na turdbino [0010] Separator sesalnika za prah, prednostno gospodinjskega sesalnika, je izveden iz vsaj dveh, koaksialno med seboj razporejenih segmentov 1, od katerih je vsak zasnovan kot plašč valja, sestoječega se iz osno potekajočih lamel 2, ki so med seboj razporejene z vmesnimi režami 3. V enem robnem segmentu 1 je predvideno dno 4, ki je v prednostni izvedbi zasnovano v obliki plašča prisekanega stožca, ki je vbočen v notranjost separatoija, pri čemer se v notranjosti separatoija dno 4 nadaljuje s cevastim koaksialno potekajočim podaljškom 5, ki je nameščen na os turbine, ki sicer ni prikazana na slikah. Podaljšek 5 sega skozi odprtino 6, ki je izvedena v navidezni osnovni ploskvi nasproti dnu 4. Prosti rob plašča, sestavljenega iz lamel 2 in rež 3 in ki se nahaja nasproti dnu 4, je izveden s prirobnico 7. Na prirobnici 7 in sicer na ohišju oziroma turbini priležni strani so izvedene dodatne nizke lamele 8, ki dinamično tesnijo režo med separatoijem in ohišjem zaradi razlike tlakov zunaj separatoija, kjer je atmosferski tlak zraka in notranjostjo separatoija, kjer obstaja pri delujočem sesalniku zračni podtlak.[009] The invention is explained in more detail based on the description of an embodiment and the drawings in which FIG. 1 is a perspective view of the separatoi of the invention; 2 is a cross-sectional view of the separatoi of the invention, FIG. 3 is an axial view of the bottom separator according to the invention, and FIG. 4 axial view of the separatoi according to the invention from a turbine attachment [0010] A vacuum cleaner separator, preferably a domestic vacuum cleaner, is made of at least two coaxially arranged segments 1, each of which is designed as a cylinder sheath consisting of axially extending lamellae 2 arranged with intermediate slots 3. In one edge segment 1, there is provided a bottom 4, which in the preferred embodiment is designed in the form of a sheath of a truncated cone, which is convex to the interior of the separatoi, with a bottom 4 inside proceeds with a tubular coaxially extending extension 5 which is mounted on a turbine axis not otherwise shown in the figures. The extension 5 extends through the opening 6, which is made in the apparent base face opposite the bottom 4. The free edge of the jacket, consisting of lamellae 2 and slots 3 and located opposite the bottom 4, is made with a flange 7. At the flange 7, namely on the housing or the turbine adjacent side there are additional low blades 8 which dynamically seal the gap between the separatoi and the housing due to the pressure difference outside the separatoi, where the atmospheric pressure is air and the interior of the separatoi, where there is an air pressure in the working vacuum cleaner.

[0011] Na plašču podaljška 5 so prioblikovane notranje lamele 6, ki potekajo koaksialno in se lahko dotikajo priležnih lamel 2 v segmentih 1 ali pa prosto štrlijo v prostor znotraj segmentov 1. Te lamele 6 učinkujejo kot ojačitveni[0011] On the sheath of extension 5, inner lamellae 6 are formed which extend coaxially and can touch adjacent lamellae 2 in segments 1 or project freely into the space within segments 1. These lamellae 6 act as reinforcement

34761 .doc/lll-07/Vr element, ker povečujejo trdnost povezave lamelastih plaščev segmentov 1, dna 4 in podaljška 5. Opisana trdnost je povečana, če navedene lamele 6 povezujejo lamelaste dele segmentov 1 in podaljšek 5 na čim večji dolžini. Opozorit pa je treba, da navedene lamele 9 učinkujejo slabšalno na tlačne značilnosti zračnega toka v separatoiju.34761 .doc / yy-07 / Vr element because they increase the bond strength of the lamellas of segments 1, the bottom 4 and the extension 5. The described strength is increased if said lamellae 6 connect the lamellae of the segments 1 and the extension 5 to the maximum length. However, it should be noted that the said lamellae 9 have a detrimental effect on the compressive characteristics of the air flow in the separatoi.

[0012] Na zunanji strani separatoija in sicer na segmentu 1, ki se nahaja priležno prirobnici 7, so dodatno izvedene lamele 10, ki lahko potekajo samo po delu navedenega segmenta in sicer so lamele 10, take, da povečujejo upor zraka, ki teče skozi reže 3, oziroma zmanjšujejo padec zračnega tlaka v svojem območju.[0012] On the outside of the separatoi, in segment 1, adjacent to the flange 7, there are further implemented lamellae 10 which can extend only along a portion of said segment, namely the lamellae 10, such that they increase the resistance of the air flowing through slots 3, or reduce the pressure drop in their area.

[0013] Segmenti 1 vključujejo lamele 2, ki imajo poljuben prečni presek, o čemer je dovolj opisanega v zgoraj navedenih patentnih spisih. Značilnost separatoija po izumu je v tem, da so lamele 2 v segmentu 1, ki vsebuje dno 4, oblikovane oziroma razporejene tako, da nudijo čim manjši upor pri strujanju zraka skozi reže 3 med lamelami 2, medtem, ko so na naslednjih segmentih 1 lamele 2 oblikovane oziroma razporejene tako, da se v njih poveča zračni upor, s čimer se pojavi v notranjosti separatoija v tem območju lamel 2 manjši padec tlaka zračnega curka. Končna posledica izuma je v tem, da je padec tlaka sesanega zraka znotraj separatoija povsod približno enak, kar je rešitev navedenega tehničnega problema tega izuma.[0013] Segments 1 include lamellae 2 having any cross-sectional area, as is sufficiently described in the foregoing patent files. A feature of the separatoi according to the invention is that the blades 2 in the segment 1 containing the bottom 4 are shaped or arranged to provide the least resistance to air flow through the slots 3 between the blades 2, while in the following segments 1 the blades 2 formed or arranged so as to increase the air resistance, thereby causing a slight decrease in air jet pressure within the separatoi in this region of the blades. A final consequence of the invention is that the pressure drop of the intake air inside the separatoy is approximately the same everywhere, which is a solution to the stated technical problem of the present invention.

[0014] Razume se, da lahko strokovnjak s tega področja na osnovi poznavanja opisa gornjega izuma in njegovega opisanega izvedbenega primera, zasnuje tudi drugačne izvedbe, zlasti v smislu drugačnega industrijskega oblikovanja oziroma poljubne ga dimenzioniranja lamel in rež med njimi, ne da bi obšel značilnosti izuma, kot so opredeljene v sledečih patentnih zahtevkih.[0014] It is understood that a person skilled in the art can, based on knowledge of the description of the above invention and its described embodiment, also conceive of different embodiments, especially in terms of a different industrial design or arbitrary dimensioning of the slats and slots between them without circumventing the features of the invention as defined in the following claims.

34761.doc/lll-07/Vr34761.doc / yy-07 / Vr

Claims (4)

Patentni zahtevkiPatent claims 1. Separator sesalnika za prah, prednostno gospodinjskega sesalnika, ki je izveden iz vsaj dveh, koaksialno med seboj razporejenih segmentov (1), od katerih je vsak zasnovan kot plašč valja, sestoječega se iz osno potekajočih lamel (2), ki so med seboj razporejene z vmesnimi režami (3). pri čemer je v enem robnem segmentu (1) predvideno dno (4), pri čemer se v notranjosti separatorja dno (4) nadaljuje s cevastim koaksialno potekajočim podaljškom (5), ki je nameščen na osi turbine in sega skozi odprtino (6), ki je izvedena v navidezni osnovni ploskvi nasproti dnu (4), in da so na podaljšku (5) prioblikovane notranje lamele (7), ki potekajo koaksialno s podaljškom (5) in se lahko dotikajo priležnih lamel (2) v segmentih (1), ter je prosti rob plašča, sestavljenega iz lamel (2) in rež (3) in ki se nahaja nasproti dnu (4), izveden s prirobnico (7), označen s tem, da so lamele (2) v segmentu (1), ki vsebuje dno (4), oblikovane oziroma razporejene tako, da nudijo čim manjši upor pri strujanju zraka skozi reže (3) med navedenimi lamelami (2), medtem, ko so na naslednjih segmentih (1) lamele (2) oblikovane oziroma razporejene tako, da se v njih poveča zračni upor, s čimer se pojavi v notranjosti separatorja v tem območju lamel (2) manjši padec tlaka zračnega curka.A dust extractor separator, preferably a domestic vacuum cleaner, made of at least two coaxially arranged segments (1), each of which is designed as a cylinder sheath consisting of axially extending blades (2) interconnected arranged by intermediate slots (3). wherein a bottom (4) is provided in one edge segment (1), and in the interior of the separator, the bottom (4) continues with a tubular coaxially extending extension (5) mounted on the axis of the turbine extending through the opening (6), which is made in a virtual base plane opposite the bottom (4), and that internal lamellae (7) are formed on the extension (5), which coaxially extend with the extension (5) and can touch adjacent lamellae (2) in segments (1) , and the free edge of the jacket consisting of lamellae (2) and slots (3) and located opposite the bottom (4) is made with a flange (7), characterized in that the lamellae (2) are in segment (1) comprising a bottom (4) shaped or arranged to provide as little resistance as possible to the flow of air through the slots (3) between said slats (2), while the following segments (1) have slats (2) formed or arranged by increasing the air resistance in them, which results in a smaller drop in air pressure inside the separator in this region of the blades (2). jet care. 2. Separator po zahtevku 1, označen s tem, da so na prirobnici (7) in sicer na ohišju oziroma turbini priležni strani izvedene dodatne nizke lamele (8), ki tesnijo režo med separatoijem in ohišjem sesalnika.Separator according to claim 1, characterized in that additional low blades (8) are provided on the flange (7) on the housing or turbine adjacent side, which seal the gap between the separator and the housing of the vacuum cleaner. 3. Separator po zahtevkih 1 in 2, označen s tem, da so na zunanji strani segmenta (1), ki se nahaja priležno prirobnici (7), dodatno izvedene lamele (10), ki lahko potekajo samo po delu navedenega segmenta (1), pri čemer so lamele (10) take, da povečujejo upor zraka, ki teče skozi reže (3) v območju teh lamel (10), oziroma zmanjšujejo padec zračnega tlaka v navedenem območju.Separator according to claims 1 and 2, characterized in that, on the outside of the segment (1) adjacent to the flange (7), the lamellae (10) are additionally made, which can extend only through part of said segment (1) , wherein the blades (10) are such as to increase the resistance of the air flowing through the slots (3) in the area of these blades (10), or to reduce the drop in air pressure in said region. 34761 .doc/lll-07/Vr34761 .doc / yy-07 / Vr 4. Separator po zahtevkih 1 do 3, označen s tem, da se na plašču podaljška (5) prioblikovane notranje lamele (9) lahko dotikajo priležnih lamel (2) v segmentih (1) oziroma da vsaj delno prosto štrlijo v prostor znotraj segmentov (1).Separator according to claims 1 to 3, characterized in that the inner lamellae (9) formed on the extension casing (5) can touch the adjacent lamellae (2) in the segments (1) or project at least partially into the space within the segments (4). 1). 34761.doc/lll-07/Vr34761.doc / yy-07 / Vr
SI200700143A 2007-06-15 2007-06-15 Vacuum cleaner dust separator SI22524A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200700143A SI22524A (en) 2007-06-15 2007-06-15 Vacuum cleaner dust separator
PCT/SI2008/000036 WO2008153506A1 (en) 2007-06-15 2008-06-16 Vacuum cleaner separator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SI200700143A SI22524A (en) 2007-06-15 2007-06-15 Vacuum cleaner dust separator

Publications (1)

Publication Number Publication Date
SI22524A true SI22524A (en) 2008-12-31

Family

ID=39816831

Family Applications (1)

Application Number Title Priority Date Filing Date
SI200700143A SI22524A (en) 2007-06-15 2007-06-15 Vacuum cleaner dust separator

Country Status (2)

Country Link
SI (1) SI22524A (en)
WO (1) WO2008153506A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101904719B (en) * 2010-08-06 2012-07-04 刘志洪 Water filter device of dust absorber
DE102011102530B3 (en) * 2011-05-26 2012-11-15 Fritz Lasinger Water vacuum cleaner for cleaning operations, has wings arranged outside separator at lower end and producing flow in direction of water, where additional kinetic energy is supplied to flow through propellers upstream of separator slots
CN103148001A (en) * 2013-02-22 2013-06-12 吴钰 Double ducted-fan blower

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090974A (en) * 1989-10-18 1992-02-25 Rexair, Inc. Separator for a vacuum cleaner system
IT1295163B1 (en) * 1997-07-10 1999-04-30 Vetrella Spa Ora Simac Vetrell SEPARATOR GROUP FOR LIQUID BATH VACUUM CLEANERS
SI20461B (en) * 2000-02-22 2008-10-31 Hyla Proizvodnja, Razvoj In Trgovina D.O.O. Separator for suction facility
IT1319737B1 (en) * 2000-12-29 2003-11-03 Gisowatt Spa Ind Elettrodomest LIQUID VACUUM CLEANER WITH PERFECTED ROTARY SEPARATOR
US7210195B2 (en) * 2002-10-11 2007-05-01 Rexair, Inc. Integrated spider separator

Also Published As

Publication number Publication date
WO2008153506A1 (en) 2008-12-18

Similar Documents

Publication Publication Date Title
AU2016365925B2 (en) A motor and a hair care appliance comprising a motor
CN106725109B (en) Cyclone, tornado dust-air separation structure and handheld dust collector
WO2015150435A1 (en) Vortex finder for a cyclonic separator
EP2915473B1 (en) Dust collecting device
SI22524A (en) Vacuum cleaner dust separator
US10874966B2 (en) Cyclone separation device
JP6721362B2 (en) Cyclone separator and air supply hood for house ventilation
CN103505154A (en) Vacuum cleaner
EP2045473A1 (en) Air Inlet Cover
ITFI20120210A1 (en) "HIGH EFFICIENCY LOW SPECIFIC SPEED CENTRIFUGAL PUMP"
SE533268C2 (en) Vacuum cleaner
CN110215156A (en) Dirt cup subassembly and have its dust catcher
EP2896838A1 (en) Coupling between a centrifugal fan and the suction inlet thereof
EP2476911B1 (en) Centrifugal fan, molding die, and fluid feeding device
CN105673852B (en) Sealing element, end cap assembly and filter assemblies
EP3569867A3 (en) Centrifugal fan with arc shaped blades
CN209733849U (en) Cyclone filtering structure applied to dust cup of dust collector, dust cup and dust collector
JP6079506B2 (en) Air cleaner
JP5345607B2 (en) Centrifugal fan, molding die and fluid feeder
IT201800007172A1 (en) ROTATING SEPARATOR FOR FILTERING THE MIXTURE OF GAS AND OIL IN SUSPENSION IN THE ENGINE BASE
CN109567665A (en) Electric dust collector
JP5469635B2 (en) Centrifugal fan, molding die and fluid feeder
CN202893079U (en) Blade grid type oil fume separation device
EP3005921B1 (en) Suction cleaner with motor suspension structure
JP5206381B2 (en) Dust collector

Legal Events

Date Code Title Description
OO00 Grant of patent

Effective date: 20071227

KO00 Lapse of patent

Effective date: 20110124