US20110076152A1 - Ventilator wheel or fan wheel with antibacterial coating - Google Patents

Ventilator wheel or fan wheel with antibacterial coating Download PDF

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Publication number
US20110076152A1
US20110076152A1 US12/859,670 US85967010A US2011076152A1 US 20110076152 A1 US20110076152 A1 US 20110076152A1 US 85967010 A US85967010 A US 85967010A US 2011076152 A1 US2011076152 A1 US 2011076152A1
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US
United States
Prior art keywords
wheel
ventilator
fan wheel
active ingredient
fan
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US12/859,670
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English (en)
Inventor
Gunter Streng
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ebm Papst Mulfingen GmbH and Co KG
Original Assignee
Ebm Papst Mulfingen GmbH and Co KG
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 Ebm Papst Mulfingen GmbH and Co KG filed Critical Ebm Papst Mulfingen GmbH and Co KG
Assigned to EBM-PAPST MULFINGEN GMBH & CO. KG reassignment EBM-PAPST MULFINGEN GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STRENG, GUNTER
Publication of US20110076152A1 publication Critical patent/US20110076152A1/en
Abandoned legal-status Critical Current

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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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • 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
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/14—Noble metals, i.e. Ag, Au, platinum group metals
    • F05D2300/141—Silver
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/20—Oxide or non-oxide ceramics
    • F05D2300/21—Oxide ceramics
    • F05D2300/2112—Aluminium oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
    • F05D2300/603—Composites; e.g. fibre-reinforced
    • F05D2300/6033—Ceramic matrix composites [CMC]

Definitions

  • the present invention relates to ventilator wheel or fan wheel consisting of a hub and blades fastened thereto, and to a ventilator or a fan using such a ventilator wheel or fan wheel.
  • Filter material and cable surfaces of air conditioning equipment and cooling or ventilation equipment become contaminated over time by layers of grime and grease settling on them. These layers contain bacteria and fungi which can be spread further via the stream of air. This may lead to allergies and infections in people who spend time in the particular air-conditioned or ventilated room.
  • Suitable active ingredients for this purpose are nanoscale molecules of metal complexes of precious metal such as e.g. silver, copper, molybdenum or the like. It is also known to use for this purpose ceramic carriers in powder form provided with silver ions, as a result of which metal ions are reversibly bonded to the metal surface.
  • silver oxide for example, it should be noted that it is not optimally suitable for the indicated application because when exposed to air it transforms into silver carbonate, which can in turn have skin irritating effects, so that protective gloves have to be worn when handling this substance. Also known is the strong irritating effect of silver nitrate, which is, for example, used because of its caustic effect in the medical field as “Höllenstein dampTM”, for removing warts, is likewise known.
  • the difference in fan wheels or blower wheels is that, in the operating state, the antibacterial substances are not normally in contact with the human body, like hands, or with food, but only with the air streaming through the fan or blower which requires increased oligodynamic efficiency to guarantee antibacterial or antimicrobial protection. There is such direct physical contact, however, during production and assembly, so that physiologically questionable substances cannot be used.
  • the object of the present invention is to make the transmission route of bacteria, fungi, viruses, i.e. germs in ventilation technology even safer against the transmission of these germs.
  • the ventilators or fans which are used which consist of a housing, preferably with a safety grid, and a ventilator wheel or fan wheel stored in the housing, and of an electric motor driving this, and of a motor mounting, have an antibacterially effective active ingredient on the surface at least of their air-conveying housing sections.
  • nanoscale aggregated molecules of metal complexes in particular of noble metals like silver, copper, molybdenum or the like, can be used. These molecules have biocidal, oligodynamic and antimicrobial effects.
  • coatings containing nanoscale molecules of this type the correspondingly coated surface is prevented from being infested by bacterial and viral microorganisms like fungi.
  • the nanoscale molecules prevent the formation of a biofilm and cause the destruction of microorganisms on the coated surface.
  • monovalent and preferably divalent silver or copper which respectively forms the central atom of the complex
  • metal complexes can in particular be used as metal complexes.
  • They can be formed with hydroxycarboxylic acids like, for example, 2-hydroxypropanoic acid (lactic acid), 2-hydroxypropane-1,2,3-tricarboxylic acid (citric acid) or 2,3-dihydroxybutanedioic acid (tartaric acid), as substances forming ligands in the complex ions.
  • ammine complexes of the chemical formula [Ag(RNH 2 ) 2 ] + , where R is hydrogen, a methyl or an ethyl group, for example, can preferably be used. These complexes are characterized, in particular, by increased stability in comparison to other complexes.
  • Each mechanism of action can be selectively influenced to different degrees by the copper and silver, which, in the interaction of the different ions, results in that the oligodynamic efficacy progressively increases with concentration, but is disproportionately higher compared to the same concentrations in which only silver or only copper is present.
  • Copper (I) and silver (I) diammine complexes and/or copper (II) and silver (II) tetra-ammine complexes, or also possibly mixed aqua-ammine complexes can thus, for example, be used advantageously not only respectively alone, but also preferably as a mixture.
  • a higher efficacy should be attributed to the ions of divalent metals because of their higher redox potential.
  • the respective ligands of the substances constituting the complex ions need not necessarily be organic compounds, as described above.
  • the complex can, for example, also be inorganic compounds, like a thiosulfato compound, which, for example, contains the bis(thiosulfato)argentate ion [Ag(S 2 O 3 ) 2 ] 3 ⁇ .
  • the complex ions can be cations as well as anions.
  • the respectively complementary anions or cations in the complex compounds can be those resulting in salts that are easily soluble, hardly soluble or insoluble in water, the formation of soluble substances being favorably associated with the advantage of higher ion mobility, and the formation of insoluble or hardly soluble salts with the advantage of an easier extraction of nanoparticles by means of colloidal precipitation.
  • silver-containing sulfonamides like silver sulfadiazine (empirical formula: C 10 H 9 AgN 4 O 2 S) in particular, which, as is known, is used as an antibacterial active ingredient for treating second and third grade burns as well as extensive lacerations, has an oligodynamic effect on the surface of hubs and/or blades of fans and/or blower wheels which are in contact with the air streaming through them. This results in a synergistic effect of the acid residue of the amide-containing sulfonic acid and silver ions.
  • the antibacterial active ingredient such as silver chromate Ag 2 CrO 4
  • the antibacterial active ingredient need not necessarily be water soluble, but may also be water insoluble, such as silver dichromate AgCr 2 O 7 .
  • the active ingredient can also be a ceramic carrier with e.g. silver or oligodynamic ions bound therein, aluminum silicate being particularly used as a ceramic carrier.
  • a ceramic carrier with e.g. silver or oligodynamic ions bound therein, aluminum silicate being particularly used as a ceramic carrier.
  • hydroxyl groups in the active ingredient like those contained in the above mentioned hydroxycarboxylic acids, has a particularly advantageous effect because by interacting with them the metals on the surface of the hub and/or blade can have a higher, still physiologically harmless, concentration than is permissible for free copper or silver ions, for example.
  • the hydroxyl groups can be bound in different ways, preferably chemically, in the ceramic matrix.
  • the antibacterially effective active ingredients can be incorporated into paints, powder coatings or plastics mixtures, meaning that they can be applied either as a coating to the surface or in the form of a paint coat or a surface film by adding them to these particular materials in a different concentration depending on the requirements.
  • alkyd, acrylic, epoxy or polyurethane resins are possible options as basic formulations for the lacquers.
  • Polyolefins, in particular polyethylene and polypropylene as well as polyvinyl chloride are suitable as base materials for the surface films. It is likewise possible to mix the antibacterially effective active ingredients into the manufacturing material of the ventilator wheel or fan wheel or parts of the ventilator housing or fan housing.
  • Ventilators or fans usually consist of a housing in which the ventilator wheel or fan wheel is rotatably stored, where the ventilator wheel with the electric motor integrated therein is fastened to a motor mounting.
  • the housing can be provided with a safety grid.
  • the parts of the ventilator in particular those which are air-conveying and/or are located in the stream of air to be conveyed, are provided on their surface in an antibacterial manner with an active ingredient according to the invention.
  • the concentration of the active ingredient coating on the individual parts can be the same or different depending on where the highest bacterial loading is expected.
  • the total concentration of the oligodynamic metals, preferably present in ionic form, on the surface of the hub and/or blades should optimally be in the range of 0.05 to 15% by mass, preferably in the range of 0.2 to 2.8% by mass.
  • the design of the particular ventilator is not essential to the implementation of the invention, meaning that it can be used for any type of ventilator; in particular, axial and radial ventilators are customary.
  • the present invention is not restricted to the illustrated and described exemplary embodiments, but also comprises all identically functioning means within the meaning of the invention.
  • the present invention is not restricted to the combination of characteristics defined in claims 1 and 23 , but can also be defined by any other combination of certain characteristics of all disclosed individual characteristics. This means that basically each individual characteristic of the independent claims can be omitted and/or replaced by at least one individual characteristic disclosed at another point of the application. To that extent, the claims are to be merely understood as a first attempt at formulating the invention.
  • nanoscale particles are understood to be particles from monomolecular size up to an average particle diameter of 1000 nm.
  • the average particle diameter should preferably be in the range of 1 nm to 40 nm, especially preferably in the range of 15 nm to 30 nm.
  • Antibacterial within the context of the invention means both effective against bacteria and also against viruses and fungi.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Plant Pathology (AREA)
  • Inorganic Chemistry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
US12/859,670 2008-02-19 2010-08-19 Ventilator wheel or fan wheel with antibacterial coating Abandoned US20110076152A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008002350U DE202008002350U1 (de) 2008-02-19 2008-02-19 Ventilator- oder Gebläserad mit antibakterieller Beschichtung
DE202008002350.5 2008-02-19

Publications (1)

Publication Number Publication Date
US20110076152A1 true US20110076152A1 (en) 2011-03-31

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ID=40436168

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Application Number Title Priority Date Filing Date
US12/859,670 Abandoned US20110076152A1 (en) 2008-02-19 2010-08-19 Ventilator wheel or fan wheel with antibacterial coating

Country Status (6)

Country Link
US (1) US20110076152A1 (de)
EP (1) EP2245098B1 (de)
CN (1) CN101945957B (de)
DE (1) DE202008002350U1 (de)
ES (1) ES2424855T3 (de)
WO (1) WO2009103578A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160059154A1 (en) * 2013-03-27 2016-03-03 Matthias Fockele Slm filter system
USD818103S1 (en) * 2014-12-02 2018-05-15 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilator
US10895263B2 (en) 2015-03-10 2021-01-19 Ebm-Papst Mulfingen Gmbh & Co. Kg Multipart housing of a fan

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111561743A (zh) * 2020-06-01 2020-08-21 福建优净星环境科技有限公司 一种灭菌空调室内机以及采用该空调室内机的灭菌方法
CN111578596A (zh) * 2020-06-01 2020-08-25 福建优净星环境科技有限公司 一种节能降耗杀菌冰箱
CN114193366A (zh) * 2020-09-18 2022-03-18 埃克斯黑尔风扇香港有限责任公司 层流吊扇及装配夹具

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4525410A (en) * 1982-08-24 1985-06-25 Kanebo, Ltd. Particle-packed fiber article having antibacterial property
US5614568A (en) * 1992-12-25 1997-03-25 Japan Synthetic Rubber Co., Ltd. Antibacterial resin composition
JPH11162249A (ja) * 1997-11-26 1999-06-18 Diamond Electric Mfg Co Ltd 空気清浄機能付き照明器具
US20060177472A1 (en) * 2003-03-31 2006-08-10 Toshikazu Tomioka Insect repellent coating and industrial product using the same
KR20060135336A (ko) * 2005-06-24 2006-12-29 한국공조엔지니어링 주식회사 금속의 나노 입자 및 나노 점토가 표면 처리된 공조기 항균 송풍기의 제조방법
US20070098806A1 (en) * 2002-05-02 2007-05-03 Ismail Ashraf A Polymer-Based Antimicrobial Agents, Methods of Making Said Agents, and Products Incorporating Said Agents
US20090035342A1 (en) * 2004-07-30 2009-02-05 Karandikar Bhalchandra M Antimicrobial Devices and Compositions
US20090239280A1 (en) * 2006-07-05 2009-09-24 Wim De Windt Method for producing metal nanoparticles
US8022115B2 (en) * 2009-09-22 2011-09-20 Quadrant Epp Ag Anti-fouling ultrahigh molecular weight polyethylene compositions and methods of using the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005044446A1 (en) 2003-10-09 2005-05-19 York International Corporation Nano composite photocatalytic coating

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4525410A (en) * 1982-08-24 1985-06-25 Kanebo, Ltd. Particle-packed fiber article having antibacterial property
US5614568A (en) * 1992-12-25 1997-03-25 Japan Synthetic Rubber Co., Ltd. Antibacterial resin composition
JPH11162249A (ja) * 1997-11-26 1999-06-18 Diamond Electric Mfg Co Ltd 空気清浄機能付き照明器具
US20070098806A1 (en) * 2002-05-02 2007-05-03 Ismail Ashraf A Polymer-Based Antimicrobial Agents, Methods of Making Said Agents, and Products Incorporating Said Agents
US20060177472A1 (en) * 2003-03-31 2006-08-10 Toshikazu Tomioka Insect repellent coating and industrial product using the same
US20090035342A1 (en) * 2004-07-30 2009-02-05 Karandikar Bhalchandra M Antimicrobial Devices and Compositions
KR20060135336A (ko) * 2005-06-24 2006-12-29 한국공조엔지니어링 주식회사 금속의 나노 입자 및 나노 점토가 표면 처리된 공조기 항균 송풍기의 제조방법
US20090239280A1 (en) * 2006-07-05 2009-09-24 Wim De Windt Method for producing metal nanoparticles
US8022115B2 (en) * 2009-09-22 2011-09-20 Quadrant Epp Ag Anti-fouling ultrahigh molecular weight polyethylene compositions and methods of using the same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Translation of KR 1020060135336 provided by Google translate *
Updated translation of KR 1020060135336A provided by the USPTO *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160059154A1 (en) * 2013-03-27 2016-03-03 Matthias Fockele Slm filter system
US10207207B2 (en) * 2013-03-27 2019-02-19 Matthias Fockele SLM filter system
USD818103S1 (en) * 2014-12-02 2018-05-15 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilator
US10895263B2 (en) 2015-03-10 2021-01-19 Ebm-Papst Mulfingen Gmbh & Co. Kg Multipart housing of a fan

Also Published As

Publication number Publication date
WO2009103578A1 (de) 2009-08-27
EP2245098A1 (de) 2010-11-03
CN101945957A (zh) 2011-01-12
EP2245098B1 (de) 2013-06-26
DE202008002350U1 (de) 2009-06-25
CN101945957B (zh) 2014-04-16
ES2424855T3 (es) 2013-10-09

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AS Assignment

Owner name: EBM-PAPST MULFINGEN GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STRENG, GUNTER;REEL/FRAME:024862/0544

Effective date: 20091002

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION