Abstract: A supply air arrangement for a mobile device includes: at least one inlet; at least one air duct; at least one outlet; and a filtering arrangement comprising at least two filtering elements. A first filtering element and a second filtering element that is formed separately from the first filtering element are arranged in the air duct.

Abstract: A light and air filtration unit with ozone catalytic oxidation includes a main housing and a filter housing detachably mounted to the main housing by a magnet. The filter housing carries a HEPA filter, a catalytic filter, ozone generators. An LED panel is mounted on a lower side of the filter housing. A fan and a main control unit are mounted within the main housing. An outer casing has a top wall disposed above the main housing and formed with air exhaust holes, a side wall surrounding and spaced apart from the filters and the LED panel, and a bottom opening. An annular air channel is formed between the side wall of the outer casing and the filters. The fan draws air into the unit through the bottom opening and out of the unit through the air exhaust holes.

Abstract: Disclosed is a filtration system and method that uses a corona discharge grid and a series of electrostatic grids to filter ambient particles. The filtration system eliminates, or greatly reduces, the pressure drop across the associated filter media.

Abstract: The invention provides a gas purification system, for instance for agricultural application comprising a corona discharge system, the corona discharge system comprising a counter electrode, a conductive strip with a longitudinal edge comprising tooth structures, wherein the tooth structures have tooth tops with shortest distances selected from the range of 2-200 mm; and a voltage generator configured to apply a DC voltage of at least 10 kV to the conductive strip.

Abstract: An Environmental Control System may use an electronic particle separation system to control humidity in an aircraft. The electronic particle separation system may include a charging stage and a collecting stage. The charging stage may charge airflow passing through to repel liquid particles away from the airflow. Liquid droplets may be collected by the collecting stage and centrifugally flung toward a periphery of a separator. The liquid particles may be collected outside of the airflow which may be allowed to pass through the separator and out to a destination in the aircraft without the collected liquid.

Abstract: A particle collector for collecting biological material using electrostatic precipitator (ESP) technology including a removable ESP collection tube having an electrode wire suspended therein, a high voltage power supply coupled to the electrode wire for generating an ionization field within the collection tube causing smaller particles entering the collection tube to precipitate onto the walls of the collection tube, electronics including a microcontroller for controlling the operation of the collector, and a housing assembly for housing the collection tube, the high voltage power supply and the electronics.

Abstract: Systems and a method for removing carbon nanotubes from a continuous reactor effluent are provided herein. The method includes flowing the continuous reactor effluent through a separation vessel, separating carbon nanotubes from the continuous reactor effluent in the separation vessel, and generating a stream including gaseous components from the continuous reactor effluent.

Abstract: An electrically enhanced air filtration system is disclosed which uses rear fiber charging is disclosed. In particular, a fibrous filter may be placed in an upstream position within the system with one or more ionization arrays positioned downstream or to the rear of the fibrous filter in terms of airflow direction. The fibrous filter may include a grounded side and fiber side with the grounded side being upstream of the fiber side. The ionization array may include a plurality of electrodes each extending unidirectionally toward the fibrous filter.

Abstract: The present invention relates to a dust filter assembly attachable to office machines such as printers and copiers that employs toner, and computers and fax machines that require cooling. The dust filter assembly includes a contact plate attached to a vent hole of an office machine and sealing the periphery of the vent hole, a filter case connected to the contact plate and having a filter accommodation space, and a filter disposed in the filter case and including a plurality of layers, at least one of which is charged with static electricity.

Abstract: A filtering assembly for air and gaseous fluids in general is provided comprising a duct, which can be crossed by a gaseous fluid carrying pollutants. The filtering assembly comprises: at least one filtering station to remove toxic gases and solid particle pollutants of dimensions preferably greater than 50 ?m; at least one conductive grille, having at least one hole which faces and is proximate to at least one conductive filament being kept at a negative electric potential for the emission of electrons, which can be paired with pollutants of the solid particles and micro-organisms type of dimensions preferably between 10 nm and 50 ?m, at least one accumulation plate downstream of the grille, maintained at a positive electrical potential for the stable collection of pollutants paired with the electrons at least one emission source of ions, for the restoration of electric charge of the gaseous fluid, flowing over the source.

Abstract: The device has air ducts (21, 22) in which a fan/aspirator (4) is interposed, passive and mechanical air-filtration elements (2, 11, 13) being placed before the unit (3) formed. At the exit from said unit (3) there is an active filtration module that includes one or more non-thermal plasma conduits (6). When the ducts (22) closest to the module (7) bifurcate or branch inside said module (7), they define at least two clear air outlets (12), said unit (3), said module (7) and a filter (2) of said passive and mechanical filtration elements being connected to a control unit (5) by means of a communication (8) selected from mechanical, electrical, electronic and optoelectronic means and any combination thereof. The device can be used in land, water, air or space vehicles (10).

Abstract: A vane electrostatic precipitator (VEP) controls the air flow so that the entrained air particles are continuously subjected to a stress in the form of drag as they flow in front and behind vanes electrodes in the precipitator. It is not based on achieving laminar air flow over the collecting plates. Instead, efficient collection is achieved by operating with a narrow air stream and using vane electrodes in various configurations with porous back plates that gradually reduce the flow rate of the entrained air thereby allowing the particles to precipitate and collect on the vanes.

Abstract: A device for producing an electrical field in an exhaust gas system includes an exhaust gas line in which at least one electrode is disposed. The at least one electrode is in contact with a power supply and is constructed to have at least one metal plate.

Abstract: A method for converting soot particles of an exhaust gas includes providing at least nitrogen dioxide or oxygen in the exhaust gas, ionizing soot particles with an electric field, depositing electrically charged soot particles on inner channel walls of at least one surface precipitator, and bringing at least nitrogen dioxide or oxygen into contact with the deposited soot particles on the inner channel walls of the at least one surface precipitator. A device for carrying out the method includes at least one surface precipitator having a plurality of channels through which the exhaust gas can flow and extending between an inlet region and an outlet region, and at least one deposit inhibitor for electrically charged soot particles provided in at least part of the inlet region, especially allowing the soot particles to be evenly deposited and the surface precipitator to be continuously regenerated.

Abstract: A vertical type air humidifying and purifying machine, comprising a front casing, a rear casing, a humidifying unit, an ultraviolet light purifying unit, a motor-fan unit and a negative ion generator; in which the front casing and the rear casing are assembled correspondingly with each other, and the humidifying unit, the UV light purifying unit, and the motor-fan unit are disposed orderly between the front and the rear casings, and the negative ion generator is installed at an air outlet of the motor-fan unit; ON-OFF switches being respectively provided on the humidifying unit, the UV purifying unit and the negative ion generator for ON-OFF switching.

Abstract: An air filtration system includes a frame directing an airflow through the air filtration system and a power supply. An ionization array is located in the frame across the airflow and connected to the power supply. The power supply provides a first voltage to the ionization array. A field wire is located in the frame downstream from the ionization array and is energized to a second voltage only by an electrical energy discharge from the ionization array. A method of operating an electrically enhanced air filtration system includes energizing an ionization array, located across an airflow through the air filtration system, to a first voltage via electrical power supplied by a power supply. Electrical energy is discharged from the ionization array into the airflow. A field wire downstream of the ionization array is energized to a second voltage only by the discharge of electrical energy from the ionization array.

Abstract: A device for recovering nanometer or sub-micron particles carried by a gas by generating a stabilized suspension, including: a vessel including a mechanism injecting a liquid; a gas discharge mechanism in an upper portion thereof, located near a particle filter; a particle suspension outlet; and a liquid ring pump, transferring and dispersing particles carried by a gas into a liquid. The pump introduces a gas laden with nanometer or sub-micron particles into the pump; injects at least one liquid into the pump; and discharges the mixture obtained following the transfer. The vessel also includes a mechanism introducing the mixture into the vessel and at least one piezoelectric pellet, immersed in the vessel, configured to generate a fog of micron-sized droplets.

Abstract: The present invention discloses a filter device. The filter device comprises a housing with an air inlet and an filtered air outlet; a high voltage electric field region provided between two ends of the housing, wherein the direction of the electric field is perpendicular to the direction along which the air is introduced into the housing; an ionization source provided in the electric field region to ionize the ionizable pollutants present in the air introduced from the air inlet and form the resultant ionized pollutants which will move towards both ends of the housing under the influence of the electric field; and a discharging device for discharging the ionized pollutants which have arrived at the ends of the housing out of the filter device. The present invention also relates to a filtering method of using the filter device, and a trace detector.

Abstract: A system and method of treating air. Bipolar ionization is delivered to an airflow within a conduit from a tubeless ion generator. The ionized airflow may be delivered to a conditioned airspace by an HVAC system. In alternate applications, the airflow delivers ionized combustion air to an engine. The invention also includes a mounting assembly for positioning one or more ion generators into an airflow.

Abstract: An air filtration system includes a frame directing an airflow through the air filtration system and a media filter. The media filter includes a plurality of media fibers arranged to capture particles flowing therethrough and a conductive surface located at the media filter and having a conductivity within a selected range. Two or more contact pads are located at the media filter and are alignable with an electrical circuit located at the frame to determine whether a resistance across the conductive plane is within a selected resistance range. A method of installing a media filter in an air filtration system includes inserting the media filter into a frame of the air filtration system and aligning one or more contact pads of the media filter with one or more grounding pads of the frame. A resistance across the media filter is measured.

Abstract: An exhaust gas treatment device includes at least a first at least partially electrically conductive honeycomb body having a first front side and a first rear side, a second at least partially electrically conductive honeycomb body having a second front side and a second rear side, an intermediate space between the first honeycomb body and the second honeycomb body, a power supply for the formation of an electric potential between the first honeycomb body and the second honeycomb body, and a multiplicity of electrodes fastened to the first honeycomb body, extending beyond the first rear side over a first length into the intermediate space and positioned at a first distance from the second front side of the second honeycomb body. A method for treating motor vehicle exhaust gas containing particles and a motor vehicle are also provided.

Abstract: Technologies are presented for applying electrical energy to a combustion reaction to produce agglomerated combustion particulates. For example, a system may include: one or more electrodes configured to apply electrical energy to a combustion reaction; a combustion zone configured to support the combustion reaction of a fuel at a fuel source; and an electrical power source operatively coupled to the one or more electrodes and configured to apply electrical energy to the combustion reaction. The combustion reaction is controlled to produce a distribution of agglomerated combustion particulates characterized by an increase in at least one of an average particulate diameter or an average particulate mass.

Abstract: An ultra-violet lamp and reflector/shield assembly designed to be mounted in a commercial HVAC, and to other types of A/C units is described herein. The reflector/shield includes a reflective inner surface creating an illumination pattern and an outer surface shielding the UV lamp from the air flow. An orienting and securing assembly for a UV lamp is also described herein.

Abstract: Methods, devices, and systems, and devices for carrying out sorption (adsorption and absorption) for separating and/or purifying fluid mixtures are disclosed. Medical oxygen generators, dehumidifying units, sorptive heat pumps, ozone generators and Peltier devices are also disclosed. The sorption methods involve pressure swing operation of at least two sorption units. Energy from the desorbing and decompressing fluid is substantially recovered and used within the system.

Abstract: A filtering device 10, 10? that has a fluid inlet 12, a plenum 14, first and second filter layers 16 and 18, first and second fluid outlets 20 and 22, and a housing 24. The plenum 14 receives air that passes through the fluid inlet 12, and the first and second filter layers 16 and 18 are located on opposing sides of the plenum 14. The first and second fluid outlets 20 and 22 are located downstream to the first and second filter layers 16 and 18, respectively, on a side of each filter layer 16, 18 opposite the plenum 14. The housing 12 supports the first and second filter layers 16, 18 on opposing sides of the plenum 14. Very good distribution of fluid through the device 10 may be achieved because the plenum 14 and the filtering layers 16, 18 maintain their original relative positioning throughout use. Complex shapes can be produced, which enable the filtering device to accommodate devices of various configurations.

Abstract: The present invention relates to a separating apparatus for separating particles from a fluid flow. Particularly, but not exclusively, the invention relates to a domestic vacuum cleaner having such a separating apparatus for removing dust particles from a dust laden airstream. The separating apparatus includes a first cyclonic cleaning stage including at least one cyclone, and an electrostatic filter, wherein the electrostatic filter is in fluid communication with the at least one cyclone via an air passage, at least a portion of the air passage being formed longitudinally through the separating apparatus, wherein at least a portion of the first cyclonic cleaning stage, the electrostatic filter and the air passage are arranged concentrically.

Abstract: A substrate processing apparatus includes a processing chamber for accommodating therein a processing target substrate; a gas exhaust path through which a gas inside the processing chamber is exhausted; one or more exhaust pumps provided in the gas exhaust path; and a scrubber for collecting harmful components from an exhaust gas. The apparatus further includes an ionized gas supply unit for supplying to the gas exhaust path an ionized gas for neutralizing charged particles included in the exhaust gas flowing therethrough.

Abstract: An air filtration system may provide effective cooling to a processor or other components of a gaming machine with clean cooling air. The air filtration system may include an ionizer to partially ionize air passing therethrough and to increase sizes of contaminant particles. Some of the contaminant particles may be expelled out of the partially-ionized air, resulting in cleaner air. Cleaner air further passes through a filter, which may further filter out contaminant particles.

Abstract: A vane electrostatic precipitator (VEP) controls the air flow so that the entrained air particles are continuously subjected to a stress in the form of drag as they flow in front and behind vanes electrodes in the precipitator. It is not based on achieving laminar air flow over the collecting plates. Instead, efficient collection is achieved by operating with a narrow air stream and using vane electrodes in various configurations with porous back plates that gradually reduce the flow rate of the entrained air thereby allowing the particles to precipitate and collect on the vanes.

Abstract: Provided are a photocatalytic material that improves a decomposition performance and a decomposition rate, as well as a photocatalytic member and a purification device in which the photocatalytic material is used. The photocatalytic member is a photocatalytic member (1) that includes a substrate (10) and a photocatalyst layer (11) formed on a surface of the substrate (10), wherein the photocatalyst layer (11) contains a titanium oxide photocatalyst and zeolite, the titanium oxide photocatalyst containing at least an anatase-type titanium oxide and fluorine, in which a content of the fluorine in the titanium oxide photocatalyst is 2.5 wt % to 3.5 wt %, and 90 wt % or more of the fluorine is chemically bonded to the anatase-type titanium oxide.

Abstract: The present invention is an air purification method and device. Due to the lower airflow resistance that the present invention induces, an exhaust fan or blower with motor of lower torque is adopted. Consequently, the whole air purification is operated at a lower noise level. Lower operational voltage is applicable for the high-voltage electrostatic precipitator device and provides a similar or superior performance and effectiveness for dust removal. The air purification device/system is designed with higher flexibility and of more compact in dimension and size. Dust is removed from the environment by a high voltage electrostatic precipitator. The airflow stream within a high-voltage electrostatic precipitator is such that the direction of the path of the airflow is changed at least twice.

Abstract: The present invention relates to a dust filter assembly attachable to office machines such as printers and copiers that employs toner, and computers and fax machines that require cooling. The dust filter assembly includes a contact plate attached to a vent hole of an office machine and sealing the periphery of the vent hole, a filter case connected to the contact plate and having a filter accommodation space, and a filter disposed in the filter case and including a plurality of layers, at least one of which is charged with static electricity.

Abstract: A smoke removal apparatus, capable of operating in a confined space without ventilation of the apparatus to the atmosphere to provide removal of smoke from air to be treated. The apparatus includes one or more of the following filters: a mechanical filter; an electrostatic filter; and/or a chemical filter. The apparatus is arranged to collect smoke from a relatively higher position, pass smoke through the one or more filters/and expel treated air to a relatively lower position.

Abstract: An air treatment device is described that comprises: a housing having at least one air inlet and at least one air outlet with at least one air passageway therebetween; at least one fan located within said at least one air passageway; at least one air filter retaining means arranged to releasably retain, in use, an air filter within a passageway; at least one refill securing means arranged to releasably securing a refill of air treatment agent within the housing; emanation means within the housing; and wherein the housing is provided with a door to permit access to at least said air filter retaining means; and wherein the air filter retaining means are configured to move from a first position when the door is closed in which the air filter substantially completely obstructs said at least one air passageway to move to a second position when the door is open such that the air filter no longer substantially completely obstructs said at least one air passageway.

Abstract: The invention relates to apparatus and a method for separating solid particles from fluids and particularly gas flows. The apparatus is particularly for use in conjunction with an internal combustion engine or vacuum cleaner. The apparatus includes a cyclone separator which has at least two axial common cyclone separator elements, an inner and outer element, in conjunction with a two-stage electrostatic precipitator. The apparatus allows the filtration of fluid effectively, even if the flow varies over time.

Abstract: A hard disk drive filter which includes a tunable breather filter within a housing that can be easily removed and exchanged. The tunable breather filter provides multi-directional air flow through the filter.

Abstract: A method of reducing the concentration of pollutants in a combustion flue gas having a first temperature is provided. The method includes the step of providing an organic Rankine cycle apparatus utilizing a working fluid and including at least one heat exchanger is arranged in thermal communication with the flue gas. The method further includes the step of reducing the temperature of the flue gas to a second temperature less than the first temperature by vaporizing the working fluid within the heat exchanger utilizing thermal energy derived from the flue gas. The method further includes the step of filtering the flue gas through at least one filter disposed downstream of the heat exchanger to remove pollutants from the flue gas. An associated system configured to reduce the concentration of pollutants in the combustion flue gas is also provided.

Abstract: A system for enhancing air filter efficiency in an air conditioning apparatus comprising an air conditioning apparatus, having an associated air filter (13), and a dust charging device (5) that is external to the air conditioning apparatus for electrically charging dust particles in air that is drawn into the air conditioning apparatus. Also a method of improving air conditioning air filter efficiency comprising the step of providing a dust charging device for electrically charging dust externally of an air conditioning apparatus, having an associated air filter, and in a position to charge dust particles in air that is drawn into the air conditioning apparatus.

Abstract: A process for forming a porous nanoscale membrane is described. The process involves applying a nanoscale film to one side of a substrate, where the nanoscale film includes a semiconductor material; masking an opposite side of the substrate; etching the substrate, beginning from the masked opposite side of the substrate and continuing until a passage is formed through the substrate, thereby exposing the film on both sides thereof to form a membrane; and then simultaneously forming a plurality of randomly spaced pores in the membrane. The resulting porous nanoscale membranes, characterized by substantially smooth surfaces, high pore densities, and high aspect ratio dimensions, can be used in filtration devices, microfluidic devices, fuel cell membranes, and as electron microscopy substrates.

Abstract: A multi-functional cabin air filter includes a dust collecting filter layer for collecting fine dust; an oxidation catalyst filter layer for oxidizing nitrogen monoxide into nitrogen dioxide; and an adsorption filter layer for adsorbing nitrogen dioxide and volatile organic compounds, wherein antimicrobial nanoparticles are applied to at least one of the dust collecting filter layer, the oxidation catalyst filter layer and the adsorption filter layer. This cabin air filter has dust collecting, denitrifying, deodorizing and antimicrobial functions, and it may be utilized in various ways for air purification in a limited space such as a vehicle.

Abstract: This application describes a method and apparatus for removing a wide range of particles from a source of gas flow or separation of particulates from dust, mist, or vapor generating devices. An innovative use of open porous materials, which causes little pressure drop, in combination with an electrostatic grids structure is described. The apparatus is capable of removing particulates in the size range 0.01 to 1 micrometer with efficiencies as high as 99.5%. A key feature of the apparatus is that the air to be purified flows parallel to the filters instead of through them, which results in very low power consumption.

Abstract: A system for the electrical agglomeration of particles in a fluid using a plurality of electrically charged panels, such as electrets, metal panels, or any conductive material, positioned in series perpendicular to the direction of flow of fluid. The panels are about 20% to 80% open to the flow of fluid. The panels produce agglomerates of increasing size and number from the particles in a fluid as the fluid flows through each of the panels. The panels have an electrical charge of about 5,000 to 12,000 volts with amperage about 0.001 amps to 100 amps. Agglomerates are trapped by downstream capture media.

Abstract: Provided are a filter and a home appliance including the filter. In one embodiment, a filter comprises: a first main filter member and a second main filter member, which are at least partially spaced apart from each other, and generate static electricity with each other; and at least one auxiliary filter member attached to at least one of the first and second main filter members, and coated with a material for providing at least one of a sterilization function, an anti-bacterial function, a deodorization function, and an anti-allergic function.

Abstract: An apparatus for purifying air, in particular for ventilation and air-conditioning systems, has an air filter (11), which is inserted in an air channel (10) or in a filter wall for collecting dust. A dust agglomerator (12) with a DC voltage field is connected directly upstream of the air filter (11). In conventional filters, the efficiency is increased to such an extent that the dust throughput can be approximately halved. In addition, the initial efficiency is only insignificantly reduced during the operating time.

Abstract: An electrostatic coalescer includes an outer wall defining a flow path for receiving a process fluid comprising primarily a gas, a power source, and a plurality of electrode plates coupled to the power source to generate an electrical field across the flow path.

Abstract: Disclosed is a filtration system and method that uses a corona discharge grid and a series of electrostatic grids to filter ambient particles. The filtration system eliminates, or greatly reduces, the pressure drop across the associated filter media.

Abstract: A method, apparatus and system for minimizing a quantity of particulate matter entrained within a gas stream is provided. A course filter removes at least a portion of particulate matter having a relatively-large particle size from the gas stream. An agglomerator agglomerates particulate matter having a relatively-small particle size remaining in the gas stream into particulate clusters after the portion of the particulate matter having the relatively-large particle size has been removed by the course filter. An injector introduces an agglomerating material into the gas stream before the gas stream enters the agglomerator. The agglomerating material promotes agglomeration of the particulate matter having the relatively-small particle size into the particulate clusters. And a second filter receives the gas stream and removes at least a portion of the particulate clusters entrained within the gas stream exiting the agglomerator.

Abstract: Apparatuses and methods for reducing pollutants in a gas stream are disclosed. The gas stream is introduced into a condensation chamber to condense the gas stream. It then proceeds into a first reaction chamber adapted to electrochemically alter the gas stream. From there, the gas stream is directed into a reduction chamber adapted to reduce pollutants and a resonance chamber adapted to ionize the gas stream. The gas stream is then directed into a second reaction chamber adapted to further reduce pollutants in the stream. After treatment, the gas stream may be discharged into the atmosphere or recirculated through the apparatus to further reduce pollutants in the gas stream, the latter providing for a closed-looped system.

Abstract: Methods and apparatuses are described for removing a contaminant, such as a vaporous trace metal contaminant like mercury, from a gas stream. In one embodiment, a primary particulate collection device that removes particulate matter is used. In this embodiment, a sorbent filter is placed within the housing of the primary particulate collection device, such as an electrostatic precipitator or a baghouse, to adsorb the contaminant of interest. In another embodiment, a sorbent filter is placed within a scrubber, such as a wet scrubber, to adsorb the contaminant of interest. In some embodiments, the invention provides methods and apparatuses that can advantageously be retrofit into existing particulate collection equipment. In some embodiments, the invention provides methods and apparatuses that in addition to removal of a contaminant additionally remove particulate matter from a gas stream.

Abstract: An electrically enhanced air filtration system is disclosed which uses rear fiber charging is disclosed. In particular, a fibrous filter may be placed in an upstream position within the system with one or more ionization arrays positioned downstream or to the rear of the fibrous filter in terms of airflow direction. The fibrous filter may include a grounded side and fiber side with the grounded side being upstream of the fiber side. The ionization array may include a plurality of electrodes each extending unidirectionally toward the fibrous filter.