ATE265260T1 - Konisch geformter luft/öl-trenner - Google Patents

Konisch geformter luft/öl-trenner

Info

Publication number
ATE265260T1
ATE265260T1 AT99909687T AT99909687T ATE265260T1 AT E265260 T1 ATE265260 T1 AT E265260T1 AT 99909687 T AT99909687 T AT 99909687T AT 99909687 T AT99909687 T AT 99909687T AT E265260 T1 ATE265260 T1 AT E265260T1
Authority
AT
Austria
Prior art keywords
gas
tank body
separator
stage layer
liquid
Prior art date
Application number
AT99909687T
Other languages
English (en)
Inventor
Staffan B Linnersten
Christopher D Radcliff
Brian Read
Wijadi Jodi
Original Assignee
Donaldson Co Inc
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 Donaldson Co Inc filed Critical Donaldson Co Inc
Application granted granted Critical
Publication of ATE265260T1 publication Critical patent/ATE265260T1/de

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002Casings; Housings; Frame constructions
    • B01D46/0004Details of removable closures, lids, caps or filter heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/003Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions including coalescing means for the separation of liquid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/003Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions including coalescing means for the separation of liquid
    • B01D46/0031Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions including coalescing means for the separation of liquid with collecting, draining means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/20Combinations of devices covered by groups B01D45/00 and B01D46/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2275/00Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/20Shape of filtering material
    • B01D2275/201Conical shape
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00Gas separation
    • Y10S55/05Methods of making filter
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00Gas separation
    • Y10S55/17Compressed air water removal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Cyclones (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Removal Of Floating Material (AREA)
  • Fats And Perfumes (AREA)
AT99909687T 1998-02-28 1999-03-01 Konisch geformter luft/öl-trenner ATE265260T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7639798P 1998-02-28 1998-02-28
PCT/US1999/004392 WO1999043412A1 (en) 1998-02-28 1999-03-01 Conically shaped air-oil separator

Publications (1)

Publication Number Publication Date
ATE265260T1 true ATE265260T1 (de) 2004-05-15

Family

ID=22131763

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99909687T ATE265260T1 (de) 1998-02-28 1999-03-01 Konisch geformter luft/öl-trenner

Country Status (11)

Country Link
US (3) US6485535B1 (de)
EP (1) EP1059994B1 (de)
JP (1) JP2002504416A (de)
CN (1) CN1297368A (de)
AT (1) ATE265260T1 (de)
AU (1) AU737746B2 (de)
CA (1) CA2322180A1 (de)
DE (1) DE69916809T2 (de)
MX (1) MXPA00008443A (de)
TR (1) TR200002517T2 (de)
WO (1) WO1999043412A1 (de)

Families Citing this family (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002504416A (ja) * 1998-02-28 2002-02-12 エア−メイズ コーポレイション 円錐形空気−オイル分離器
GB2376193B (en) * 2001-01-16 2004-03-10 Toyo Roki Seizo Kk Oil mist filter
US6596043B1 (en) * 2001-10-17 2003-07-22 Nelson Industries, Inc. Air/oil separator tank with permanent drain layer
DE10201486A1 (de) * 2002-01-16 2003-11-20 Bauer Kompressoren Vorrichtung zur Flüssigkeitsabscheidung und Filterung von komprimierten Gasen
EP1558360B1 (de) 2002-10-28 2007-09-05 Donaldson Company, Inc. Luftfilter; auswechselbare filterpatrone; und verfahren
US7537631B2 (en) * 2002-10-28 2009-05-26 Donaldson Company, Inc. Filter cartridges; air cleaners; and methods
US6858067B2 (en) * 2002-11-12 2005-02-22 Perry Equipment Corporation Filtration vessel and method for rotary gas compressor system
EP1581328A4 (de) * 2002-12-06 2007-03-21 Donaldson Co Inc Eintrittsprallwandanordnung zur gas/flüssigkeitsabscheidung, vorrichtung und verfahren
WO2005002710A1 (en) * 2003-04-04 2005-01-13 Donaldson Company, Inc. Acoustical cavity for removal of contaminants from fluid
WO2004089509A2 (en) * 2003-04-04 2004-10-21 Donaldson Company, Inc. Filter media prepared in aqueous system including resin binder
US20060213162A1 (en) * 2003-04-04 2006-09-28 Wijadi Jodi Filter media prepared in aqueous system including resin binder
US6923851B1 (en) * 2003-04-30 2005-08-02 Butler-Justice, Inc. Blue smoke control collector system
DE20312074U1 (de) * 2003-08-05 2004-12-23 Volkmann Gmbh Vakuumfördereinrichtung mit einem mehrstufigen Filtersystem
CN100427720C (zh) * 2003-09-26 2008-10-22 中国石油化工集团公司 一种防喷溢的热载体装置
EP1694424B1 (de) * 2003-11-17 2013-06-12 Donaldson Company, Inc. Separatoranordnung für die gas/flüssigkeit-trennung; vorrichtung und verfahren
JP4219262B2 (ja) * 2003-12-10 2009-02-04 サンデン株式会社 圧縮機
JP2005171859A (ja) * 2003-12-10 2005-06-30 Sanden Corp 圧縮機
JP4286175B2 (ja) * 2004-04-13 2009-06-24 サンデン株式会社 圧縮機
WO2005105266A1 (en) * 2004-04-23 2005-11-10 Donaldson Company, Inc. Mist collector arrangement and methods
JP2005337142A (ja) * 2004-05-27 2005-12-08 Sanden Corp 圧縮機
JP2008501511A (ja) * 2004-06-04 2008-01-24 ドナルドソン カンパニー,インコーポレイティド 空気/油セパレータで使用する媒体、装置、製造プロセス
JP2005351112A (ja) * 2004-06-08 2005-12-22 Sanden Corp スクロール圧縮機
WO2006026241A1 (en) 2004-08-25 2006-03-09 Donaldson Company, Inc. Air cleaner; replaceable filter cartridges; and, methods
KR20070073828A (ko) * 2004-09-27 2007-07-10 두르 덴탈 게엠베하 & 씨오. 케이쥐이 압축 공기와 그 외의 다른 가스 매체를 위한 드라이어 유닛
JP2006097495A (ja) * 2004-09-28 2006-04-13 Sanden Corp 圧縮機
CN101142009B (zh) 2005-01-19 2011-11-30 唐纳森公司 用于气体/液体分离具有穿孔旋流器的入口挡板结构
EP1695753B1 (de) * 2005-02-28 2014-06-04 MANN+HUMMEL GmbH Filterelement mit Drainagerohr
US20070062886A1 (en) * 2005-09-20 2007-03-22 Rego Eric J Reduced pressure drop coalescer
US8114183B2 (en) 2005-09-20 2012-02-14 Cummins Filtration Ip Inc. Space optimized coalescer
WO2007050045A1 (en) * 2005-10-25 2007-05-03 Mikro Makina Sanayi Ve Ticaret A.S Separator in separator
US8231752B2 (en) 2005-11-14 2012-07-31 Cummins Filtration Ip Inc. Method and apparatus for making filter element, including multi-characteristic filter element
DE202006006084U1 (de) * 2006-04-12 2007-08-16 Mann + Hummel Gmbh Mehrstufige Vorrichtung zum Abscheiden von Flüssigkeitstropfen aus Gasen
DE102006017635A1 (de) * 2006-04-12 2007-10-18 Mann + Hummel Gmbh Mehrstufige Vorrichtung zum Abscheiden von Flüssigkeitstropfen aus Gasen
US7905947B2 (en) * 2006-05-24 2011-03-15 L.C. Eldridge Sales Co., Ltd. Method and apparatus for removing contaminates from air
US7964029B2 (en) * 2006-07-17 2011-06-21 Thar Instrument, Inc. Process flowstream collection system
EP2664372A1 (de) 2006-10-06 2013-11-20 Donaldson Company, Inc. Luftreiniger, auswechselbare Filterpatronen und Verfahren
US8331448B2 (en) * 2006-12-22 2012-12-11 Qualcomm Incorporated Systems and methods for efficient spatial intra predictabilty determination (or assessment)
EP2502659A3 (de) 2007-03-20 2013-12-11 Donaldson Company, Inc. Aerosolabscheideranordnung, Bestandteile und Verfahren
WO2008124437A2 (en) 2007-04-03 2008-10-16 Donaldson Company, Inc. Air cleaner; air filter cartridge and method of manufacturing
US8404029B2 (en) 2007-06-14 2013-03-26 Donaldson Company, Inc. Crankcase ventilation filter arrangments; components; and, methods
US8066791B2 (en) 2007-07-20 2011-11-29 Donaldson Company, Inc. Air cleaner arrangements with internal and external support for cartridge; components; and, methods
US8292984B2 (en) 2007-07-20 2012-10-23 Donaldson Company, Inc. Air cleaner arrangments with end support for cartridge; components; and, methods
WO2009018454A2 (en) 2007-08-02 2009-02-05 Donaldson Company, Inc. Crankcase ventilation filter assembly; components; and, methods
DE102008047447B4 (de) * 2007-09-19 2019-03-14 Denso Corporation Ölabscheider und Kältemittelkompressor mit diesem
BE1018543A3 (nl) * 2009-04-27 2011-03-01 Atlas Copco Airpower Nv Vloeistofafscheider.
CA2786559C (en) * 2010-01-15 2017-05-02 Ingersoll-Rand Company Formed seal ring for a liquid gas separating element
KR101942115B1 (ko) 2011-02-25 2019-01-24 도날드슨 컴파니, 인코포레이티드 에어 필터 카트리지, 그 구성요소 및 에어 클리너 어셈블리
CN103582515B (zh) * 2011-06-01 2017-03-08 安捷伦科技有限公司 用于串联或者并联收集液体级分的自清洁气液分离器
DE102011110498A1 (de) * 2011-08-17 2013-02-21 Mann + Hummel Gmbh Filter
US9114336B2 (en) 2012-01-17 2015-08-25 Oberlin Filter Company Oil-filtration system with oil/air separation for automated food-fryers
US9352262B2 (en) * 2013-03-15 2016-05-31 Donaldson Company, Inc. Scavenge tube arrangement; gas liquid separator filter assembly; and methods
DE102014002719B4 (de) * 2013-05-15 2017-10-12 Mann + Hummel Gmbh Abscheideelement und Flüssigkeitsabscheider zur Abscheidung von Flüssigkeiten aus einem Gasstrom
CN104226056B (zh) * 2013-06-24 2016-08-24 楚天科技股份有限公司 一种气液分离装置
WO2015027183A1 (en) * 2013-08-23 2015-02-26 American Air Filter Company, Inc. Prefilter wrap
WO2015027185A1 (en) 2013-08-23 2015-02-26 American Air Filter Company, Inc. Canister filter with prefiltration
CN103977665B (zh) * 2014-05-30 2015-12-30 攀钢集团西昌钢钒有限公司 气液分离器
US9776122B2 (en) * 2014-10-29 2017-10-03 Julian L Witengier High pressure compressed air/gas/steam filter
CN105126525A (zh) * 2015-09-24 2015-12-09 中国石油大学(华东) 用于气体净化的高效旋流聚结分离器
US10258916B2 (en) 2016-02-17 2019-04-16 Clark-Reliance Corporation Filtering system including impermeable extension for filtering element
CN105839744B (zh) * 2016-05-17 2019-02-22 北京华盛路泰科技有限公司 真空抽吸***
US10279299B2 (en) 2016-11-01 2019-05-07 Ingersoll-Rand Company Air compressor dryer filter
CN106704197B (zh) * 2016-11-04 2018-12-07 珠海格力电器股份有限公司 油气分离器、压缩机及空调器
US10272377B2 (en) * 2016-12-28 2019-04-30 Ingersoll-Rand Company Gas compressor filter element
EP3401000A1 (de) 2017-05-09 2018-11-14 Donaldson Company, Inc. Adapter und luftfilterpatrone zur verwendung mit solch einem adapter
DE102018123413A1 (de) * 2017-10-06 2019-04-11 Mann+Hummel Gmbh Flansch, Filtereinsatz, Vorrichtung zum Abscheiden von Ölaerosol aus Luft sowie Verfahren zur Herstellung eines Filtereinsatzes
US11097285B2 (en) 2018-01-11 2021-08-24 Kuhn Performance Technologies, Llc Crankcase ventilation management devices, systems, and methods
CN108087886A (zh) * 2018-03-02 2018-05-29 河南拓绿环保科技有限公司 一种用于生活垃圾热解无害化处理的***设施
CN109248503A (zh) * 2018-10-11 2019-01-22 泰州秸能生物质科技有限公司 一种应用于碳化稻壳制备的烟气过滤器
DE102019114914A1 (de) * 2019-04-24 2020-10-29 Carl Freudenberg Kg Trichterförmiges Filterelement
CN115163254A (zh) * 2022-07-04 2022-10-11 神通科技集团股份有限公司 一种主动式油气分离器的纤维棉结构及其制备方法

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US552572A (en) * 1896-01-07 Eugene austin
US1922688A (en) * 1929-06-10 1933-08-15 Ac Spark Plug Co Multistage type air cleaner
US2095586A (en) * 1937-03-02 1937-10-12 Bernhard M Algard Filter device for compressed air
US3085381A (en) * 1960-05-25 1963-04-16 Rockwell Standard Co Two-stage oil separator
US3252270A (en) 1962-10-01 1966-05-24 Pall Corp Apparatus and method for removal of oil entrained in air
US3364658A (en) * 1966-09-01 1968-01-23 Hollingshead Corp Multi-phase separation unit
US3698161A (en) 1970-11-03 1972-10-17 North American Rockwell Filter
US3823791A (en) 1972-10-25 1974-07-16 Keltec Inc Steering and drive mechanism for floor cleaning machine
US4498915A (en) 1974-03-29 1985-02-12 Witchell Stanley P Air filters
US4078036A (en) 1975-07-24 1978-03-07 Pittsfield Products, Inc. Cartridge filter construction
GB1544822A (en) 1976-03-26 1979-04-25 Process Scient Innovations Filter elements for gas or liquid and methods of making such elements
US4130487A (en) 1976-04-05 1978-12-19 Process Scientific Innovations Ltd. Filters for liquids or gases
GB1603519A (en) 1978-01-23 1981-11-25 Process Scient Innovations Filter elements for gas or liquid and methods of making such filters
GB1566220A (en) 1978-04-07 1980-04-30 Automotive Prod Co Ltd Air/liquid separator
US4243397A (en) 1979-06-27 1981-01-06 Donaldson Company, Inc. Air cleaner with replaceable filter element
US4814033A (en) 1986-04-16 1989-03-21 Porous Media Corporation Method of making a reinforced filter tube
US4836931A (en) 1986-04-16 1989-06-06 Porous Media Corporation Reinforced filter tube and method of making the same
GB2214837B (en) * 1988-02-17 1991-09-04 Process Scient Innovations Oil coalescing filter
US4872890A (en) 1988-11-14 1989-10-10 Dollinger Corporation Multi-stage gas-entrained liquid separator
US4878929A (en) * 1989-02-01 1989-11-07 Nelson Industries Inc. Liquid-gas separator
US5053126A (en) 1990-02-28 1991-10-01 Ingersoll-Rand Company Apparatus for gas liquid separation
US5302354A (en) 1992-06-26 1994-04-12 Pall Corporation Filtration device
BR9206703A (pt) * 1992-08-31 1995-10-24 Porous Media Corp Filtro cônico coalescente
US5454945A (en) 1992-08-31 1995-10-03 Porous Media Corporation Conical coalescing filter and assembly
US5750024A (en) 1992-11-12 1998-05-12 Porous Media Corporation Conical coalescing filter
DE4429822C2 (de) 1994-08-23 1998-02-19 Mann & Hummel Filter Vorrichtung zum Abscheiden von Ölaerosol aus Luft
US5522909A (en) 1994-12-27 1996-06-04 Purolator Products Na, Inc. Air filter device
US5549722A (en) 1994-12-30 1996-08-27 Dana Corporation Air filter assemblies and a frustoconical air filter element for use with the assemblies
US5605555A (en) 1995-05-30 1997-02-25 Air-Maze Corporation Air/oil separator with interlocked flange
US5632792A (en) 1995-08-16 1997-05-27 Purolator Products Company Air induction filter hose assembly
US5916435A (en) 1997-01-27 1999-06-29 Porous Media Corporation Conical coreless filter assembly and element
US5792711A (en) 1997-03-18 1998-08-11 Porous Media Corporation Antiwetting composition for fabrics and fibrous substrates
US5853443A (en) 1997-08-08 1998-12-29 Ingersoll-Rand Company Moisture separator for fluid compressor
US5861678A (en) * 1997-12-23 1999-01-19 Micron Technology, Inc. Method and system for attaching semiconductor dice to substrates
JP2002504416A (ja) * 1998-02-28 2002-02-12 エア−メイズ コーポレイション 円錐形空気−オイル分離器
CN1293583A (zh) 1998-03-16 2001-05-02 艾美兹公司 气体压缩机中的静电消散
GB2335867A (en) * 1998-04-03 1999-10-06 Process Scient Innovations Thermally bonded felt material for coalescence filters
US6093231A (en) 1998-10-16 2000-07-25 Air-Maze Corporation Air/oil separator with unitary top end cap and flange
US6136076A (en) 1998-10-16 2000-10-24 Air-Maze Corporation Air/oil separator with molded top sealing flange
WO2000072948A1 (en) 1999-05-27 2000-12-07 Porous Media Corporation Oil dehydrator
DK1284810T3 (da) 2000-04-19 2008-12-15 Porous Media Corp Fremgangsmåde og anordning til dehydrering af olie
US6596043B1 (en) * 2001-10-17 2003-07-22 Nelson Industries, Inc. Air/oil separator tank with permanent drain layer

Also Published As

Publication number Publication date
MXPA00008443A (es) 2002-05-08
CA2322180A1 (en) 1999-09-02
WO1999043412A1 (en) 1999-09-02
US6797025B2 (en) 2004-09-28
EP1059994B1 (de) 2004-04-28
AU2883999A (en) 1999-09-15
DE69916809T2 (de) 2005-04-28
EP1059994A1 (de) 2000-12-20
TR200002517T2 (tr) 2001-06-21
US20040000236A1 (en) 2004-01-01
US6585790B2 (en) 2003-07-01
US20030051450A1 (en) 2003-03-20
CN1297368A (zh) 2001-05-30
AU737746B2 (en) 2001-08-30
JP2002504416A (ja) 2002-02-12
US6485535B1 (en) 2002-11-26
EP1059994A4 (de) 2001-04-11
DE69916809D1 (de) 2004-06-03

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