SG142128A1 - Fan unit air flow control - Google Patents

Fan unit air flow control

Info

Publication number
SG142128A1
SG142128A1 SG200306562-0A SG2003065620A SG142128A1 SG 142128 A1 SG142128 A1 SG 142128A1 SG 2003065620 A SG2003065620 A SG 2003065620A SG 142128 A1 SG142128 A1 SG 142128A1
Authority
SG
Singapore
Prior art keywords
air flow
fan unit
outlet opening
flow channel
air
Prior art date
Application number
SG200306562-0A
Inventor
Zong Tang Lee
Original Assignee
Kyodo Allied Ind Ltd
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 Kyodo Allied Ind Ltd filed Critical Kyodo Allied Ind Ltd
Priority to SG200306562-0A priority Critical patent/SG142128A1/en
Priority to US10/877,632 priority patent/US20050092544A1/en
Priority to EP04017423A priority patent/EP1530109B1/en
Priority to DE502004006474T priority patent/DE502004006474D1/en
Priority to CNA2004100742347A priority patent/CN1614243A/en
Publication of SG142128A1 publication Critical patent/SG142128A1/en

Links

Classifications

    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F04D29/4253—Fan casings with axial entry and discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/165—Axial entry and discharge
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/664—Sound attenuation by means of sound absorbing material

Abstract

AIR FLOW CONTROL UNIT A fan unit comprises a top having an inlet opening (18), at least one side for enclosing the fan unit, and an outlet opening (19): A fan blower (12) is disposed on a blower mounting (14); the fan blower being for drawing air through the inlet opening and for discharging air through the outlet opening. At least one pair of guide baffles (28) extends inwardly from a lower end of the at least one side towards the outlet opening, the pair of guide baffles (28) and the blower mounting (14) forms an air flow channel therebetween. The air flow channel creates a construction on air flow to raise air pressure within the air flow channel. This creates substantially mono-directional air flow in the air flow channel and through the outlet opening. The air flow therefore has reduced turbulence such that noise from said fan unit is minimised.
SG200306562-0A 2003-11-05 2003-11-05 Fan unit air flow control SG142128A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SG200306562-0A SG142128A1 (en) 2003-11-05 2003-11-05 Fan unit air flow control
US10/877,632 US20050092544A1 (en) 2003-11-05 2004-06-25 Fan unit air flow control
EP04017423A EP1530109B1 (en) 2003-11-05 2004-07-23 Ventilator and method for controlling the air flow through a ventilator
DE502004006474T DE502004006474D1 (en) 2003-11-05 2004-07-23 Fan system and method for controlling the air flow of a fan system
CNA2004100742347A CN1614243A (en) 2003-11-05 2004-09-03 Fan unit and air flow control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SG200306562-0A SG142128A1 (en) 2003-11-05 2003-11-05 Fan unit air flow control

Publications (1)

Publication Number Publication Date
SG142128A1 true SG142128A1 (en) 2008-05-28

Family

ID=34432639

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200306562-0A SG142128A1 (en) 2003-11-05 2003-11-05 Fan unit air flow control

Country Status (5)

Country Link
US (1) US20050092544A1 (en)
EP (1) EP1530109B1 (en)
CN (1) CN1614243A (en)
DE (1) DE502004006474D1 (en)
SG (1) SG142128A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100112929A1 (en) * 2008-11-03 2010-05-06 Airex Inc. Recessed fan inlet cover
EP2557908B1 (en) * 2011-05-16 2018-07-18 Huawei Technologies Co., Ltd. Heat dissipater and outdoor communication device
US8899378B2 (en) 2011-09-13 2014-12-02 Black & Decker Inc. Compressor intake muffler and filter
AU2012216659B2 (en) 2011-09-13 2016-03-24 Black & Decker Inc Air ducting shroud for cooling an air compressor pump and motor
US11111913B2 (en) 2015-10-07 2021-09-07 Black & Decker Inc. Oil lubricated compressor
JP6134407B2 (en) * 2016-02-24 2017-05-24 ミネベアミツミ株式会社 Centrifugal fan
DE102016226157A1 (en) * 2016-12-23 2018-06-28 Ziehl-Abegg Se Fan module and arrangement of one or more such fan modules in a flow channel
CN108906795B (en) * 2018-08-21 2024-04-02 镇江裕太防爆电加热器有限公司 Purging structure for triangular magnesium tube sintering equipment
CN111984090A (en) * 2020-09-28 2020-11-24 苏州浪潮智能科技有限公司 Fan baffle, fan module and case
CN112957833A (en) * 2021-03-10 2021-06-15 惠亚科技（苏州）有限公司 Filtering equipment
CN113202262B (en) * 2021-05-25 2022-09-09 浙江宁溢电力工程设计咨询有限公司 Ventilation unit of underground substation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6217281B1 (en) * 1999-06-30 2001-04-17 Industrial Technology Research Institute Low-noise fan-filter unit
EP1019659B1 (en) * 1997-09-03 2004-01-21 Kyodo-Allied Industries Limited A method and apparatus for minimising noise from fan filter unit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3085647A (en) * 1960-11-07 1963-04-16 Jenn Air Products Company Inc Acoustic curb
US4560395A (en) * 1984-04-17 1985-12-24 Environmental Air Control, Inc. Compact blower and filter assemblies for use in clean air environments
US4990290A (en) * 1989-05-08 1991-02-05 Gill James G Diffusion fogger
DE4412583C1 (en) * 1994-04-13 1995-09-14 Daldrop & Dr Ing Huber Gmbh & Fan filter unit for clean room
US5470363A (en) * 1995-01-13 1995-11-28 Envirco Corporation Air blower and filter assemblies
US5801342A (en) * 1997-01-27 1998-09-01 Lindab Ab Double-walled structure and method and arrangement for producing the same
US6592451B2 (en) * 2001-02-26 2003-07-15 Kyodo-Allied Industries Ltd Fan unit
GB2372538A (en) * 2001-02-26 2002-08-28 Kyodo Allied Ind Pte Ltd Fan unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1019659B1 (en) * 1997-09-03 2004-01-21 Kyodo-Allied Industries Limited A method and apparatus for minimising noise from fan filter unit
US6217281B1 (en) * 1999-06-30 2001-04-17 Industrial Technology Research Institute Low-noise fan-filter unit

Also Published As

Publication number Publication date
EP1530109A2 (en) 2005-05-11
US20050092544A1 (en) 2005-05-05
DE502004006474D1 (en) 2008-04-24
EP1530109B1 (en) 2008-03-12
CN1614243A (en) 2005-05-11
EP1530109A3 (en) 2006-01-18

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