Abstract: A filter system for an explosion-proof enclosure is described herein. The filter system can include a pre-filter assembly located outside the explosion-proof enclosure. The pre-filter assembly can include a pre-filter material configured to control air passing therethrough. The filter system can also include a filter assembly coupled to the pre-filter assembly. The filter assembly can further control the air received from the pre-filter assembly and passing therethrough into the explosion-proof enclosure.

Abstract: Disclosed in a filter for filtering a working fluid comprising a canister having an inlet and an outlet; a first partially perforated generally conical member positioned in said canister; a second generally conical member positioned inside said first partially perforated generally conical member, whereby the working fluid upon entering the inlet is caused to spin inside the canister, to pass through the perforated portion of the first generally conical member, to enter an inlet to the second generally conical member, to spin within the second conical member and to pass through the outlet.

Abstract: Disclosed are methods, apparatuses, and systems for generating an alert message based on a determined crossing of a weight threshold of a filter.

Abstract: A vacuum loader for providing granular resin material to resin material processing equipment has a loader housing, a vacuum motor, a dust filter, an air blast generator, a dump flap, and a pivoting manually releasable latch for retaining the lateral web and the loader from tilting rotation of the loader about the shaft and supporting the loader when placed in a tilted orientation; the latch being weighted to pivotally return to a web-retaining position when released by an operator.

Abstract: An air filter cartridge is provided including an air filter media construction having a first, outlet end, flow face and an opposite, second, inlet end, flow face. The filter media construction has fluted media secured to a facing media sheet. The filter media is closed to flow of unfiltered air completely therethrough. A centerboard is provided. The centerboard has a media portion embedded within the media construction. The centerboard has first and second opposite sides. The media portion that is embedded within the media defines an aperture arrangement extending completely through the centerboard from the first side to the second side. An adhering sealant secures the centerboard to the media construction. At least some adhering sealant extends through the aperture arrangement.

Abstract: Disclosed herein is a ceiling embedded type air conditioner having a filter cleaning device to clean a filter. The filter cleaning device includes a cleaning unit to remove dust from the filter and a dust storage unit to store the dust removed by the cleaning unit. The filter may automatically and periodically be cleaned by the cleaning unit and the removed dust may be stored in the dust storage unit, which eliminates a need to separate and clean the filter.

Abstract: A process chamber is configured to contain a work piece in a controlled atmosphere and to perform a process that emits pyrophoric particulates. A closed recirculating loop connected with the process chamber recirculates gas defining the controlled atmosphere through the process chamber. A filter in the closed recirculating loop captures the generated pyrophoric particulates in the recirculating gas. A valve set has a work configuration defining the closed recirculating loop including the connection of the process chamber with the filter, and a filter regeneration configuration in which the filter is blocked off from the process chamber and is connected with an exhaust. A work piece is loaded into the process chamber. With the valve set in the work configuration, the process is performed on the loaded work piece. Thereafter, regeneration gas containing oxygen is delivered to the filter with the valve set in the regeneration configuration.

Abstract: A method for engine-out soot flow rate prediction of an exhaust gas treatment system is provided. A measured level of oxides of nitrogen in the exhaust gas treatment system is received. An engine fuel injection timing and air-fuel ratio of an engine producing the oxides of nitrogen are also received. An engine timing factor is determined based on the engine fuel injection timing. An engine air-fuel ratio factor is determined based on the engine air-fuel ratio. An engine-out soot flow rate prediction is generated based on the measured level of oxides of nitrogen, the engine timing factor, and the engine air-fuel ratio factor.

Abstract: A baghouse cleaning system comprises an elongated air accumulator configured to retain pressurized air and extend over a row of filter bags. An elongated air tube extends along the air accumulator and venturis extend from the air tube. The venturis blow pressurized air streams down into the filter bags to remove particles attached to an outside filter bag surface. A valve fluidly couples the air accumulator to the air tube and an actuator is configured to move the cleaning arm linearly over different rows of the filter bags. A sensor may determine when the filter bags need to be cleaned based on a measured air pressure. A controller can actuate the cleaning arm to clean the filter bags based on preprogrammed cleaning patterns, the amount of measured air pressure, and/or other detected environmental conditions.

Abstract: In a porous filter, dust that has been collected from a gas through a filter group installed in a vessel body onto filter surfaces is removed from the filter surfaces by backwashing in which the supply and stoppage of a high-pressure gas ejected toward porous filter elements are repeated by means of a valve operation. Backwash tanks having upstream backwash valves and downstream backwash valves are installed in backwash pipes through which the high-pressure gas is guided from high-pressure-gas supply equipment to backwash nozzles for ejecting the backwash high-pressure gas toward the filter group to form a backwash high-pressure-medium supply line. The outlet pressure of the high-pressure-gas supply equipment is set to “1/critical pressure ratio” or more times a filter inlet gas pressure so that the flow speed of the high-pressure gas ejected from the backwash nozzle is the speed of sound or higher.

Abstract: A filter system for an explosion-proof enclosure is described herein. The filter system can include a pre-filter assembly located outside the explosion-proof enclosure. The pre-filter assembly can include a pre-filter material configured to control air passing therethrough. The filter system can also include a filter assembly coupled to the pre-filter assembly. The filter assembly can further control the air received from the pre-filter assembly and passing therethrough into the explosion-proof enclosure.

Abstract: A baghouse cleaning system comprises an elongated air accumulator configured to retain pressurized air and extend over a row of filter bags. An elongated air tube extends along the air accumulator and venturis extend from the air tube. The venturis blow pressurized air streams down into the filter bags to remove particles attached to an outside filter bag surface. A valve fluidly couples the air accumulator to the air tube and an actuator is configured to move the cleaning arm linearly over different rows of the filter bags. A sensor may determine when the filter bags need to be cleaned based on a measured air pressure. A controller can actuate the cleaning arm to clean the filter bags based on preprogrammed cleaning patterns, the amount of measured air pressure, and/or other detected environmental conditions.

Abstract: An indoor unit (1) is provided with an output control portion (35, 71) for controlling a cleaning signal output portion (33, 48) to output a cleaning signal when it is determined that the amount of dust in a dust storing portion (60, 90) has reached a predetermined first level, and when it is determined that the amount of dust in the dust storing portion (60, 90) has reached a second level that is higher than the first level.

Abstract: An agricultural work vehicle includes an enclosed engine compartment within the vehicle body, with the engine compartment having a top cover that extends generally between opposite sides of the vehicle body. A vertically oriented air inlet is defined in the vehicle body for intake of air into the engine compartment. An intake housing is configured over the air inlet and includes an inlet opening and an outlet opening in communication with the engine compartment air inlet. The inlet opening extends above the top cover and is oriented relative to a vertical plane such that an angled air flow path is defined between the inlet opening and the outlet opening wherein air is drawn from an area above the top cover of the engine compartment and is directed into the air inlet.

Abstract: This invention proposes a method of removing pollutants from high temperature gasses prior to their introduction in to a heat exchanger of a steam generating boiler within a power generation system. The method comprises placing a filter system (100) in a hot gas flow path upstream of a waste-heat boiler. The filter system comprising at least two banks of substantially hollow elongate filters (110), each of which filters particles from the gas flow as it flows from an external surface thereof to an internal surface thereof. Valves (104, 106) enable each bank of filters to be isolated from the hot gas flow path. The method included periodically isolating at least one bank of filters while passing hot gasses through at least another of the banks of filters, and cleaning the isolated bank of filters. After cleaning the filters (110) lime is injected into the flow path so that it coats the outer surface of the filters (110) to produce a loose lime coating thereon.

Abstract: A system is provided for removing particulate matter from a particulate collection device utilized to collect particulate matter from a flue gas stream. The system includes a pressure vessel for storing a pressurized gaseous medium in an interior area defined by the pressure vessel. A first pressure sensor is in communication with the interior area and configured to measure pressure therein. A particulate collection device for collecting particulate matter from a flue gas stream includes a conduit in communication with the pressure vessel. A valve is disposed in the conduit and adapted to open to release a pulse of the pressurized gaseous medium from the pressure vessel into the particulate collection device. A control system is in communication with the valve and the first pressure sensor, and includes a controller configured to operate the valve based upon at least one pressure measurement received from the first pressure sensor.

Abstract: A system and method to control cleaning of an associated air filter apparatus is disclosed. Air flow across the associated air filter is estimated using a pressure sensor disposed at an inlet port of the associated air filter and a pressure sensor disposed at an outlet port of the associated air filter. Further, an optimal air flow across the associated air filter is calculated. The optimal air flow results in optimal filtering efficiency. The associated air filter is then periodically cleaned at a rate determined from the difference between the estimated air flow and the calculated optimal air flow to move air flow towards the optimal air flow.

Abstract: A method and apparatus for removing fine particulate matter from a fluid stream without interrupting the overall process or flow. The flowing fluid inflates and expands the flexible filter, and particulate is deposited on the filter media while clean fluid is permitted to pass through the filter. This filter is cleaned when the fluid flow is stopped, the filter collapses, and a force is applied to distort the flexible filter media to dislodge the built-up filter cake. The dislodged filter cake falls to a location that allows undisrupted flow of the fluid after flow is restored. The shed particulate is removed to a bin for periodic collection. A plurality of filter cells can operate independently or in concert, in parallel, or in series to permit cleaning the filters without shutting off the overall fluid flow. The self-cleaning filter is low cost, has low power consumption, and exhibits low differential pressures.

Abstract: An air filter (30) intermittently rotates by a predetermined rotation angle at each time, while being in contact with a bristle portion (51b) of a rotating brush (51). Accordingly, dust on the air filter (30) is scraped by the bristle portion (51b). The brush member (51) rotates about an axial center of a shaft (51a) at each stop of the intermittent rotation of the air filter (30), to come into contact with a cleaning brush member (52). According, dust on the brush member (51) is removed by the cleaning brush member (52).

Abstract: Pulse jet air cleaner systems components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.

Abstract: A computer system includes a computer chassis housing a processor and having a dust filter disposed in an airflow pathway through the computer chassis. A plurality of electrodes is disposed across an area of the dust filter, and a voltage source is provided having a negative terminal and a positive terminal. A controller selectively couples a first subset of electrodes to the negative terminal and selectively couples a second subset of electrodes to the positive terminal, wherein a voltage differential between the first subset of electrodes and the second subset of electrodes is sufficient to cause electrostatic movement of dust from an area of the dust filter near the first subset of electrodes to an area of the dust filter near the second subset of electrodes.

Abstract: An air filter module adapted to be used with a projection module and disposed to cover an air vent of the projection module. The air filter module includes a filter component and a cleaning unit. The cleaning unit is disposed to cover the air vent and configured to drive the filter component to have a movement so as to remove the dust on the filter component according to a cleaning-start signal. A projection device adopting the air filter module is also provided.

Abstract: Suction appliance for cleaning purposes, comprising a dirt collecting container with a suction outlet on which a filter is held, a suction unit for acting upon the dirt collecting container with negative pressure, a suction chamber between the suction unit and the filter with an external air inlet, via which external air can flow into the suction chamber to act upon the filter on the clean-space side, a valve device with a valve seat forming the external air inlet, a movable valve body to seal and release the valve seat, and an actuating member to cause the valve body to be transferred from a closed position to an open position. The appliance can comprise an energy storage device, to which energy to be stored can be supplied by actuating the actuating member. Stored energy can be released for transferring the valve body from the closed position to the open position.

Abstract: A diesel particulate filter system comprising: a temperature sensor on the inlet side of the diesel particulate filter; a temperature sensor on the outlet side of the diesel particulate filter; a pressure sensor on the inlet side of the diesel particulate filter; and a control module in communication with the temperature sensors and the pressure sensor, and the control module is loaded with a look-up table that correlates the amount of soot loaded in the diesel particulate filter to a change in pressure measured by the pressure sensor; wherein the control module Initiates a regeneration cycle when soot loading of the diesel particulate filter achieves a predetermined soot load.

Abstract: A method for removing matter from a filter is disclosed. The method may include measuring loading conditions of a filter media. The method may also include applying at least one voltage pulse between an electrode external to the filter media and a housing of the filter media to induce a plurality of shock waves directed toward the filter media, based on the loading conditions.

Abstract: Disclosed in a filter for filtering a working fluid comprising a canister having an inlet and an outlet; a first partially perforated generally conical member positioned in said canister; a second generally conical member positioned inside said first partially perforated generally conical member, whereby the working fluid upon entering the inlet is caused to spin inside the canister, to pass through the perforated portion of the first generally conical member, to enter an inlet to the second generally conical member, to spin within the second conical member and to pass through the outlet.

Abstract: The self-cleaning air filter uses reverse pulse self-cleaning for small scale, small volume air filtration applications, such as vehicles and motorized equipment. The self-cleaning air filter includes a filter casing, a filter element housed within a filter casing, an electronically controlled pulse valve that releases the compressed air pulse, and a pulse pressure relief vent. During the cleaning cycle, the pulse pressure vent opens to vent the compressed air pulse to the atmosphere thereby maintaining the positive pressure differential between the inside and outside of the filter element, which sustains the cleaning action for the duration of the compressed air pulse.

Abstract: An apparatus 100 for cleaning a filter for removing particulate matter comprises: a filter 3 installed in a exhaust passage 2 of an internal combustion engine 1 and capturing the particulate matter 19 included in the exhaust gas; an injector 4 being able to inject high-pressure air and high-pressure vapor to the filter 3 in a opposite direction to a flow direction of the exhaust gas; a high-pressure air feeder 5 being able to feed the high-pressure air to the injector 4; and a high-pressure vapor feeder 6 being able to feed the high-pressure vapor to the injector 4.

Abstract: A V-pack filter includes a frame construction having a first frame structure and a second frame structure. The V-pack filter also includes first and second panel sections mounted in extension between the first and second frame structures. The first panel section has first and second ends. The second panel section has third and fourth ends. The first and third ends have a first distance therebetween while the second and fourth ends have a second distance therebetween. The second distance is generally greater than the first distance. The first and second panel sections and the second frame structure define an air flow aperture. A seal arrangement circumscribes the air flow aperture and projects outwardly from the second frame structure. The first frame structure defines a first receiver indent. Assemblies and methods are also included.

Abstract: A filtration apparatus includes at least three filter elements for filtering fluid, and a frame having a pyramidal frustum configuration that has at least three sides. The frame includes a frame structure for supporting the filter elements at the sides such that the filtration apparatus has a pyramidal frustum configuration. The filtration apparatus may be part of a filtration assembly. The filtration apparatus may be utilized within an associated method.

Abstract: Pulse jet air cleaner systems components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.

Abstract: A system for a vehicle includes a regeneration module and a disconnection indication module. The regeneration module indicates when a regeneration of a particulate filter is complete. The disconnection indication module receives a pressure difference across the particulate filter measured using delta pressure sensor. The delta pressure sensor generates the pressure difference based on first and second pressures upstream and downstream of the particulate filter applied to the delta pressure sensor using upstream and downstream pressure lines, respectively. In response to an indication that the regeneration of the particulate filter is complete, the disconnection indication module selectively indicates that the downstream pressure line is disconnected based on a comparison of the pressure difference and a predetermined pressure.

Abstract: A system and method for determining loading of a filter having a first dielectric constant with a material having a different dielectric constant, is disclosed. The filter is contained within a metallic container forming a microwave cavity, and microwave or RF energy is created within the cavity and changes in the cavity microwave response are monitored. The changes in cavity microwave response are related to filter loading. In a preferred embodiment, the microwave energy includes multiple cavity modes thereby allowing determination of spatial distribution of the contaminant material loading. In one embodiment, the microwave cavity response includes a shift in frequency of a resonant mode. Alternatively, the microwave cavity response includes a shift in quality factor Q of a resonant mode. The microwave cavity response may include a shift in amplitude or peak width of the microwave's signal at resonance.

Abstract: An air filter cartridge is provided including an air filter media construction having a first, outlet end, flow face and an opposite, second, inlet end, flow face. The filter media construction includes fluted media secured to a facing media sheet. The filter media is closed to flow of unfiltered air completely therethrough. A centerboard is provided. The centerboard has a media portion embedded within the media construction. The centerboard has first and second opposite sides. The media portion that is embedded within the media defines an aperture arrangement extending completely through the centerboard from the first side to the second side. An adhering sealant secures the centerboard to the media construction. At least some adhering sealant extends through the aperture arrangement.

Abstract: Dust collection structure for collecting the dust removed from an air filter of an indoor unit has been devised to reduce user's labor in collecting the dust as much as possible. An indoor unit includes, in a casing, an indoor heat exchanger, an indoor fan for sucking air from inside of a room, and blowing the air to the inside of the room, and an air filter arranged on an inlet side of the indoor fan. The dust trapped on the air filter is removed by the dust removing means, and is contained in the dust containing part. A nozzle connector for arranging a nozzle of a cleaner at a predetermined position where suction of the contained dust is allowed is provided at a downstream outlet of a dust collection path as a transfer path for transferring the dust in collecting the contained dust.

Abstract: An abnormality determination apparatus includes a particulate filter provided in the exhaust passage of an internal combustion engine that collects particulate matter in the exhaust gas discharged from the internal combustion engine, a particulate matter deposition amount detection device provided downstream of the particulate filter, and a abnormality determination portion. The particulate matter deposition amount detection device includes a detecting element that detects the particular matter that flows toward the particulate matter deposition amount detection device and that is not trapped by the particulate filter, and then outputs a value corresponding to a deposition amount deposited the particulate matter on the detecting element. The abnormality determination portion determines, whether an abnormality is present in the particulate filter based on the gradient of an output waveform of the particulate matter deposition amount detection device.

Abstract: The present invention relates to a method and a system for treating polluted gases prior to their emission into the atmosphere. The system comprises a treatment chamber having an inlet for receiving polluted gas and an outlet for expelling treated gas, the treatment chamber including at least one treatment cell having a filtering layer for treating the polluted gas when the polluted gas comes in contact with the filtering layer. The system also contains a powder container connected to the treatment chamber such that air laden with the powder can flow to the treatment chamber to form a filtering layer on the at least one treatment cell. The system contains an air flow generator connected to the outlet of the treatment chamber and to the container which is connected to the treatment chamber, for causing air flow to the container, to the treatment chamber and in the environment.

Abstract: Systems and methods for processing high purity materials are disclosed. A unit operation processes a material stream, an operational parameter of the unit operation is monitored, and a standby unit is charged with pressurized gas to achieve system pressure. The material stream is diverted to the standby unit in response to the operational parameter of the unit operation registering a threshold value. Flow exiting the standby unit is first vented via an outlet, and then directed toward a point of use after the pressurized gas has been purged. The unit operation may then be serviced and subsequently brought back online. A second unit operation may process a second material stream simultaneously, and the second material stream may be periodically diverted to the standby unit in like manner, thus reducing line pressure variation. The disclosed method may be performed manually or implemented automatically through use of a controller.

Abstract: A system includes a particulate matter (PM) filter with an upstream end for receiving exhaust gas, a downstream end and zones. The system also includes a heating element. A control module selectively activates the heating element to inductively heat one of the zones.

Abstract: The present invention includes: a rolled filter stretched between first and second winding shafts and, unused part of the filter being wound around the second winding shaft; a brush provided between the first and the second winding shafts so as to come into contact with a surface of the filter; a feeding mechanism for driving the first and the second winding shafts to take up or rewind the filter; and a feeding control unit for controlling the feeding mechanism. When activating a renewing operation for feeding unused part of the filter from the second winding shaft, the feeding control unit controls the feeding mechanism such that once the filter is taken up by the first winding shaft by an take-up amount La, the filter is rewound by the second winding shaft by a rewind amount Lb, and La and Lb satisfy a relationship La?Lb.

Abstract: An air conditioner has a dust catch filter interposed between an inlet and a heat exchanger, a cleaning unit 5 for removing dust caught by the filter, and filter driver 18 for reciprocally driving the filter with respect to the cleaning unit 5. The cleaning unit 5 has a dust box 21 having a cleaning brush for removing dust caught on the surface of the filter and a filter hold plate that is attached to the dust box 21 and that holds a rear surface of the filter. The air conditioner is provided with cleaning brush driver 20 that draws the cleaning brush from the dust box 21 and brings the cleaning brush into contact with the filter during cleaning of the filter and that separates the cleaning brush from the filter and puts the cleaning brush in the dust box 21 when the filter is not cleaned.

Abstract: A particulate matter sensor includes a first detection filter provided in an exhaust gas flow passage and capable of collecting particle matter. A second detection filter is provided on a downstream side of the first detection filter in the exhaust gas flow passage and capable of collecting the particle matter. A first differential pressure detection unit is configured to detect a first differential pressure between pressures of an upstream side and the downstream side of the first detection filter. A second differential pressure detection unit is configured to detect a second differential pressure between pressures of an upstream side and a downstream side of the second detection filter. A particle matter amount detection unit is configured to detect an amount of particle matter based on a detection result of the first differential pressure detection unit and a detection result of the second differential pressure detection unit.

Abstract: There is provided a ceiling type air conditioner including a brush assembly for collecting foreign matters filtered by a filter. The brush assembly includes a brush that contacts the foreign matters filtered by the filter and a main body for collecting the foreign matters separated from the filter to store the foreign matters. Therefore, it is possible to effectively collect and store the foreign matters filtered by the filter in the main body due to the movement of the brush assembly. In addition, since a user does not have to exchange or clean the filter, it is possible to prevent inconvenience from being caused by exchanging or cleaning the filter and to prevent the filter from being contaminated.

Abstract: A system includes a particulate matter (PM) filter that includes an upstream end for receiving exhaust gas and a downstream end. A zoned resistive heater is arranged spaced from said upstream end and includes N zones, where N is an integer greater than one, wherein each of the N zones includes M sub-zones, where M is an integer greater than or equal to one, and wherein the zoned heater includes an electrically insulating material. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates non-selected ones of the N zones.

Abstract: A filter system for an explosion-proof enclosure is described herein. The filter system can include a pre-filter assembly located outside the explosion-proof enclosure. The pre-filter assembly can include a pre-filter material configured to control air passing therethrough. The filter system can also include a filter assembly coupled to the pre-filter assembly. The filter assembly can further control the air received from the pre-filter assembly and passing therethrough into the explosion-proof enclosure.

Abstract: An apparatus and a method for filtering sectioning wastes of a microtome that are present in an air stream are described. The apparatus has an aspiration device with which sectioning waste can be aspirated from a blade region of the microtome with an air stream. A main filter and a prefilter are provided. A valve is provided for opening and closing an opening so that the air stream so that if desired an air stream can be directed through a filter insert in the prefilter for emptying the prefilter into the main filter. According to the method, an air stream that is used for aspirating sectioning waste from a blade region of the microtome is shut off immediately before emptying the prefilter.

Abstract: A filter assembly for mechanically removing silicon monoxide during a crystal growth run having a filter housing, a filter mounting plate attached to the filter housing, a sweep plate attached to the filter housing, a plurality of filter elements attached to the filter mounting plate, and a plurality of ring-shaped brushes mounted to the sweep plate, wherein at least one of the plurality of ring-shaped brushes surrounds each of the plurality of filter elements.

Abstract: A system for removing matter from a filtering device is disclosed. The system may have an impact wave generating device. The system may further have a vacuum source to draw matter away from the filtering device.

Abstract: An apparatus and a method for filtering sectioning wastes of a microtome that are present in an air stream are described. The apparatus has an aspiration device with which sectioning waste can be aspirated from a blade region of the microtome with an air stream. A main filter and a prefilter are provided. The direction of the air stream can be reversed and a filter insert in the prefilter can be rotated for emptying the prefilter into the main filter. According to the method, the prefilter is only emptied to the main filter after all the sections of a block that are to be produced with the microtome have been produced.

Abstract: In an apparatus having an internal combustion engine, an exhaust system for transporting engine exhaust from the engine is described. In one example, a particulate filter disposed in the exhaust system is assessed for degradation. The approach may be particularly useful for an image charge sensor.