Abstract: A filter for mimicking regional lung deposition is provided that includes filter layers of fibrous filter material stacked coaxially and an outer ring portion encircling the fibrous filter material and securing the filter layers together. The fibrous filter material is formed for fibers having a fiber diameter, and the filter has a tunable filter efficiency. A regional lung deposition system capable of measuring constant flow or variable flow is provided that includes a throat simulation device, a filter housing downstream of and in fluid communication with the throat simulation device, a breath simulator downstream of and in fluid communication with the filter housing, and a an above-referenced filter positioned within the filter housing. Also provided is a filter housing for use in the regional lung deposition system that includes a conical housing having a small inner diameter at a first end and a large inner diameter at a second end.

Abstract: The Multiple Intake Air Filtration Device of this invention is a superior, highly efficient air cleaner that utilizes an array of multiple-intake cyclonic tubes spinning air at high speed to efficiently remove the specific sizes of dirt and other particulates that can be ingested in off-road and highway vehicle operations. This Multiple Intake Air Filtration Device is well-suited for use with both normally-aspirated engines and turbocharged engines. It is superior to automotive air cleaners that filter out dirt by use of a screen or porous media because it never becomes clogged as dirt and particulates are filtered out, and it is superior to devices that utilize only a single air flow through cyclonic tubes, because the device of this invention cleans intake air more efficiently while providing a strong flow of clean air to the engine or other component.

Abstract: One illustrative cyclone separator disclosed herein includes an outer body, an inner body positioned at least partially within the outer body, an internal flow path within the inner body, the internal flow path having a fluid entrance and a fluid outlet, a first fluid flow channel between the inner body and the outer body, and a re-entrant fluid opening that extends through the outer body and is in fluid communication with the fluid flow channel, wherein the re-entrant fluid opening is positioned at a location upstream of the fluid entrance of the internal flow path in the inner body.

Abstract: A surface cleaning apparatus comprising a cyclone positioned in an air flow path. The cyclone has a cyclone chamber, a cyclone chamber inlet body provided at a cyclone chamber inlet end, a cyclone main body comprising an opposed end wall axially spaced apart from the cyclone chamber inlet end, and a plurality of cyclone chamber inlets provided at the cyclone chamber inlet end. The cyclone chamber inlet body comprises a cyclone chamber inlet end wall and a plurality of spaced apart sidewall portions extending around at least a portion of a radial outer perimeter of the cyclone chamber inlet body. The sidewall portions may have a radial thickness of 0.001 to 0.06 inches.

Abstract: The cyclone separation device has a case (1), a space partition plate (7), and a cylindrical member (11). The case (1) is formed into a cylindrical shape and has a first intake port (4), an outflow port (6), and a second intake port (5). The first intake port (4) has a circumferential opening (2) circumferentially formed in a side surface on a side of the one end of the case (1), and a fixed blade (3) arranged along the circumferential opening (2). The outflow port (6) is disposed on a surface on the side of the one end and discharges the swirling airflow fed through the first intake port (4). The second intake port (5) is disposed on a side surface on a side of the other end opposite to the one end.

Abstract: An oil mist filter is fixed on an air intake of an oil mist collector and contains: a top cover, a bottom cover, and a conical filtering assembly. The top cover includes a collection portion formed on a central position thereof and a plurality of guiding portions radially extending outward from the collection portion. The bottom cover is hollow and includes a through orifice defined on a central position thereof, and an outer diameter of the bottom cover is greater than the top cover. The filtering assembly is disposed between the top cover and the bottom cover. Thereby, oily substances from the top cover are guided by the plurality of guiding portions to flow through and to be filtered by the filtering assembly, and then the oily substances are guided out of the through orifice of the bottom cover.

Abstract: This filter is used to purify air by removing foreign matters such as liquid droplets contained in the air. A separation unit (23) is formed with a port block (13) and a separation cylinder (20), and the port block is formed with a primary port (11) and a secondary port (12). From the secondary port (12), the air purified by removing the foreign matters in a separation chamber (25) of the separation unit (23) is flowed out. A discharge pipe (37) for guiding the purified air to the secondary port (12) is disposed in a center portion of a swirl flow generating chamber (24). The foreign matters discharged from the discharging port (31) are collected in a collection container (27). In the collection container (27), a baffle plate 51 having a liquid guiding surface (50) is provided. A fin (52) is provided in an outer peripheral portion of the baffle plate (51), and the liquid guiding surface (50) positioned at a center portion of the baffle plate (51) is flat.

Abstract: This swirl flow generator is used to purify air by removing foreign matters such as liquid droplets and dusts contained in the air. A cylindrical blade portion (34) is arranged in a swirl flow generating chamber (24) through which the air flows in the axial direction, and the air flowed in the axial direction along the blades (35) is radially jetted toward inside of the cylindrical blade portion (34) to form swirl flow. The air supplied into the swirl flow generating chamber (24) in the axial direction is guided by the closing lid portion (38) toward the inflow-side end surface of the cylindrical blade portion (34). The air flow downward from the outside of the cylindrical blade portion (34) is prevented by the annular base portion (33).

Abstract: This filter is used for purifying air by removing foreign matters such as liquid droplets contained in the air. A separation unit is formed by a primary port, a port block to which a secondary port is formed, and a separation cylinder attached to the port block. Inside a swirl flow generating chamber of the separation unit, a cylinder blade portion formed by arranging a plurality of blades, which are extended in an axial direction along an inner peripheral surface and also inclined in a circumferential direction, in a cylindrical form is provided. The air flowed into the swirl flow generating chamber is caused to be a swirl flow by the cylindrical blade portion and foreign matters such as liquid droplets are discharged toward a collection container in a separation chamber. The purified air is guided from a discharge pipe to the secondary port.

Abstract: An inertial separation air precleaner system includes a replaceable insert removably mounted to the precleaner and altering air flow velocity through the precleaner by changing flow area of the flowpath through the precleaner housing. The replaceable insert is replaceable with a different insert for the same precleaner housing, which different insert provides a different flow area through the precleaner housing, enabling a selectable precleaner efficiency vs. restriction trade-off as chosen by a user for a particular application, enabling tuning of precleaner performance by the user.

Abstract: Cyclones for gas-solid separators are provided, which are especially applicable for use in a downflowing third stage separator (TSS) for the removal of dust particles, such as solid catalyst fines, from the flue gas streams exiting the catalyst regenerator in fluid catalytic cracking (FCC) processes. A cyclone comprises a barrel and a central hub disposed within the barrel to provide an annular section between the outer diameter of the central hub and the inner diameter of the barrel. Swirl vanes extend radially into the annular section. A shield is disposed at least partially within the annular section and at least partially within the swirl vanes. The shield radially divides the annular section into an inner annular portion and an outer annular portion.

Abstract: A filter for precipitating solid materials from a pressure medium or a gas includes an inlet and an outlet channel implemented in a filter housing. A filter element is disposed in the filter housing. Pressure medium flows through an outer surface of the filter element by means of the inlet channel into an interior area, and from the area to the outlet channel. The outer surface of the filter element, together with an inner surface of the filter housing, delimits an inlet chamber in which the pressure medium encompasses the filter element. The inlet channel and/or the inlet chamber are thereby embodied such that a centrifugal force acting approximately radially to the filter housing acts on the medium flowing into the inlet chamber, whereby the particles can be filtered out of the pressure medium in addition to the filter element.

Abstract: This filter is used for purifying air by removing foreign matters such as liquid droplets contained in the air. A separation unit is formed by a primary port, a port block to which a secondary port is formed, and a separation cylinder attached to the port block. Inside a swirl flow generating chamber of the separation unit, a cylinder blade portion formed by arranging a plurality of blades, which are extended in an axial direction along an inner peripheral surface and also inclined in a circumferential direction, in a cylindrical form is provided. The air flowed into the swirl flow generating chamber is caused to be a swirl flow by the cylindrical blade portion and foreign matters such as liquid droplets are discharged toward a collection container in a separation chamber. The purified air is guided from a discharge pipe to the secondary port.

Abstract: A cyclone dust collector having a single or multiple dust collection bodies installed within a housing, wherein the dust collection body is composed of an upper primary cylindrical dust collection part and a lower secondary conical duct collection part, and a single or multiple slits are cut in the wall surfaces of the primary and secondary dust collection parts in such a manner that large dust particles with large inertial force are removed between the dust collection housing and the dust collection body via the slit(s), while small dust particles with small inertial force make a swirling flow motion within the dust collection body and are removed by the centrifugal force.

Abstract: A centrifugal separator for separating liquid droplets from a gas flow can be used for scrubbing gases to be emitted into the atmosphere, as well as for separating water, oil and gas condensate droplets from a gas flow in any industry. The separator comprises a cylindrical body with axial gas flow inlet and outlet pipes and separated liquid removal sections located on the end surfaces of the body. A swirler and a central perforated pipe are installed in series and in axial alignment in the body from the gas inlet side. A conical displacer is installed in the perforated central pipe. Separation stage vanes are located between the central pipe and the conical displacer along the entire length of the displacer, and hydraulic seal vanes are placed at the same level between the central pipe and the body. The separator design provides a more efficient separation of liquid droplets from a high-velocity gas flow and can operate in any position.

Abstract: Apparatus and method for separating a fluid. The apparatus includes an inlet duct having an inlet flow entrance and an inlet flow exit, the inlet duct defining an inlet width that decreases between the inlet flow entrance and the inlet flow exit, and an inlet radius that increases between the inlet flow entrance and the inlet flow exit. The apparatus also includes a separating turn fluidly connected to the inlet flow exit of the inlet duct and including an outer surface defining an opening. The apparatus further includes a liquid outlet fluidly connected to the opening of the separating turn to allow a higher-density component of the flow to exit the separating turn, and an outlet duct having an outlet flow entrance connected to the separating turn, to allow a lower-density component of the flow to exit the separating turn.

Abstract: To improve the separation efficiency of a gas-liquid separator in the gas-liquid separator and an air conditioner, the gas-liquid separator having a vessel with an inlet pipe and an outlet pipe is arranged such that an exit end section of the inlet pipe is formed to be closed or to have a gap, an expanded end section having a width greater than the diameter of that portion of the inlet pipe which crosses a container of the gas-liquid separator is provided, and that a lateral hole is formed in a side face of the expanded end section. Refrigerant vapor and refrigerant liquid are efficiently separated from each other at the expanded end section, and this improves separation efficiency of the gas-liquid separator.

Abstract: A cyclonic fluid separator has a tubular housing (10) in which the fluid is accelerated and swirl imparting means (2) for inducing the fluid to swirl through an annular space between the housing and a central body (1) mounted within the housing (10), which central body (1) is provided with resonance abatement means, such as: tensioning means (20,22) which apply a tension load to an elongate tail section (8) of the central body (1) such that the natural frequency of the central body (1) is increased; vibration dampening means (31,50,60), which inhibit vibration of at least part (8) of the central body (1); solid particles (31) arranged in a segmented tubular tail section (8) of the central body (1), a viscous liquid (50) arranged between a tubular tail section (8) of the central body (1) and a tensioning rod (51), apertures (60) drilled radially through a tail section (8) of the central body (1); and/or a low pressure fluid (80) injected through a central opening (82) in the central body (1).

Abstract: The invention relates to fluid separator comprising:—a throat portion (4) which is arranged between a converging fluid inlet section and a diverging fluid outlet section, the diverging fluid outlet section comprising an inner primary outlet (7) for condensables depleted fluid components and an outer secondary outlet for condensables enriched fluid components (6); and—a central body (10) provided upstream of the throat portion (4) in the fluid inlet section, the central body (10) being arranged substantially coaxial to a central axis I of the fluid separator. The fluid separator is arranged to facilitate a main flow through the converging fluid inlet section, the throat portion towards the diverging fluid outlet section. The central body (10) comprises an outlet (13), directed towards the tubular throat portion (4) and is arranged to add a central flow towards the throat portion (4).

Abstract: A filter for precipitating solid materials from a pressure medium or a gas includes an inlet and an outlet channel implemented in a filter housing. A filter element is disposed in the filter housing. Pressure medium flows through an outer surface of the filter element by means of the inlet channel into an interior area, and from the area to the outlet channel. The outer surface of the filter element, together with an inner surface of the filter housing, delimits an inlet chamber in which the pressure medium encompasses the filter element. The inlet channel and/or the inlet chamber are thereby embodied such that a centrifugal force acting approximately radially to the filter housing acts on the medium flowing into the inlet chamber, whereby the particles can be filtered out of the pressure medium in addition to the filter element.

Abstract: A gas/liquid separator is provided in which separation performance for fluid into gas and liquid is enhanced. A gas/liquid separator includes a body which separates a circulation gas into water and hydrogen gas in a separating space, a supply port from which the circulation gas flows into the inner space, the supply port being provided on the side wall surface forming the separating space, and a discharge port through which the separated hydrogen gas flows out of the separating space, the discharge port being provided on the side wall surface. In this case, the discharge port is provided above the supply port.

Abstract: A centrifugal separator for separating liquid droplets from a gas flow can be used for scrubbing gases to be emitted into the atmosphere, as well as for separating water, oil and gas condensate droplets from a gas flow in any industry. The separator comprises a cylindrical body with axial gas flow inlet and outlet pipes and separated liquid removal sections located on the end surfaces of the body. A swirler and a central perforated pipe are installed in series and in axial alignment in the body from the gas inlet side. A conical displacer is installed in the perforated central pipe. Separation stage vanes are located between the central pipe and the conical displacer along the entire length of the displacer, and hydraulic seal vanes are placed at the same level between the central pipe and the body. The separator design provides a more efficient separation of liquid droplets from a high-velocity gas flow and can operate in any position.

Abstract: The invention relates to fluid separator comprising: —a throat portion (4) which is arranged between a converging fluid inlet section and a diverging fluid outlet section, the diverging fluid outlet section comprising an inner primary outlet (7) for condensables depleted fluid components and an outer secondary outlet for condensables enriched fluid components (6); and —a central body (10) provided upstream of the throat portion (4) in the fluid inlet section, the central body (10) being arranged substantially coaxial to a central axis I of the fluid separator. The fluid separator is arranged to facilitate a main flow through the converging fluid inlet section, the throat portion towards the diverging fluid outlet section. The central body (10) comprises an outlet (13), directed towards the tubular throat portion (4) and is arranged to add a central flow towards the throat portion (4).

Abstract: A gas/liquid separator in which separation performance for fluid into gas and liquid is enhanced is provided. A gas/liquid separator 10 includes a body 40 which separates a circulation gas into water and hydrogen gas in a separating space S1, a supply port 45 from which the circulation gas flows into the inner space S1, the supply port 45 being provided on the side wall surface 43 forming the separating space S1, and a discharge port48 through which the separated hydrogen gas flows out of the separating space S1, the discharge port 48 being provided on the side wall surface 43. In this case, the discharge port 48 is provided above the supply port 45.

Abstract: A centrifugal separator for separating immiscible components of a wet gas stream is formed by an upright cylindrical vortex tube having an internal wall surface, a top with a gas outlet opening therein, a bottom providing a liquid outlet opening and a wet gas stream inlet tangential to the internal wall surface, the inlet being spaced below the top. A helical baffle is secured to the vortex tube internal wall surface and extends from below the top but above the inlet to a lower end spaced above the vortex tube bottom. A plurality of spaced apart vertical outlet fins are affixed to and extending radially from the internal wall surface adjacent the vortex tube bottom, each outlet fin having a top end spaced below the helical baffle lower end.

Abstract: A cylindrical shaped pleated media includes adhesive beads arranged on a periphery to bridge pleats and provide structural support for the pleated media. The pleated media is used in a fluid filter.

Abstract: A cyclonic separator assembly for a vacuum cleaner, the assembly including a first cyclonic separator for effecting a first stage of dust separation from the suction airflow of the cleaner, and at least one further cyclonic separator for further separation of dust from the air flow following the first separator, and a receptacle for separated dust, the receptacle including respective receiving portions for receiving dust separated by the first separator and the further separator(s), wherein the respective portions of the dust receptacle are able to be emptied separately from one another.

Abstract: A separator system has a plurality of separator stages (11, 12, 13) and operates to remove particulates from air, particularly in the inlet to an engine. Each stage includes a plurality of side-by-side inertial separators (26) through which the air flows and by which particulates are removed. Each stage (11, 12, 13) produces a pressure drop and the additional total pressure drop produced by each stage after the first is less than the additional total pressure drop produced by the preceding stage in an upstream direction. This allows particulates to be removed by the separator stages (11, 12, 13) alone without the use, in normal operation, of a barrier filter (14).

Abstract: A liquid separator configured to separate liquid from a fluid stream. The separator includes a housing, a separation chamber disposed within the housing, a drain having a drain passageway for draining liquid from the separation chamber, an inlet chamber configured to receive the fluid stream, an inlet channel configured to communicate the fluid stream from the inlet chamber to the separation chamber, a swirler disposed within the inlet channel, and an outlet channel configured to communicate the fluid stream from a first outlet end positioned proximate the second inlet end, to a second outlet end remote from the separation chamber. Preferably, the separator also includes a separator mounting face proximate the inlet chamber, the mounting face configured for mounting the separator to a humidifier. The housing preferably includes a base and a cap which is removably mountable to the base.

Abstract: A cyclone dust-collecting apparatus comprises an upper casing having an air suction port formed thereon, a lower casing connected to the upper casing to form a cyclone chamber, a guide unit disposed between the upper and the lower casing, and having a first channel for swirling a dirt-laden air drawn in through the air suction port, and a second channel for discharging a cleaned air therethrough; and a filter assembly mounted between the guide unit and the lower casing, for removing a dirt and a dust from the air as drawn in. Accordingly, a compact-sized cyclone dust-collecting apparatus is realized and maintenance management of the vacuum cleaner becomes easy.

Abstract: An air precleaner for mechanically removing particulate contaminants from an enclosed environment includes a peripheral air intake manifold that is in communication with the inlet port of a mechanical separation unit, and a central exhaust port that is in communication with the air output port of the mechanical separation unit. The precleaner can be inserted into or onto a vacuum system from which airborne particulate matter is to be removed. The precleaner includes a container which may be a two part container formed of a fitting assembly and a canister for the collection of particulates. The canister itself may be divided into a top and a bottom, compartment by a flange extending outwardly around the outer edge of the mechanical separation unit. Particulate matter collects in the bottom compartment of the canister, which can be periodically removed from the rest of the precleaner to dispose of the accumulated particulates.

Abstract: A steam humidification apparatus includes a dispersion tube having a jacket defining a jacket area. The steam humidification apparatus includes a steam line for supplying steam to the jacket. The steam humidification apparatus includes a valve having a seat, the valve being positioned to deliver dry steam to the dispersion tube. The steam humidification apparatus includes a separator in communication with the valve, the separator being mounted to receive steam and to deliver dry steam to the valve. The separator, the valve, and the dispersion tube are all positioned generally coaxial.

Abstract: A cyclonic separation device is provided having improved pressure loss characteristics. A fluid supply conduit in flow communication with an inlet to a cyclone is located and configured to extend longitudinally through a central portion of the cyclone, whereby the sharp bending of the conduit may be reduced, thereby reducing pressure losses in the device, without unduly interfering with the cyclonic flow within the cyclone. The present invention may be adapted for use with cyclonic separation devices of all types, including single- and multi-stage cyclonic separators. The cyclonic separation device may be incorporated in a vacuum cleaner such as an upright vacuum cleaner. A three dimensional conduit which is optionally used with a cyclonic separator is provided.

Abstract: A trap for removing moisture from sampled gases includes an elongate conduit having a plug substantially positioned therein to prevent flow directly through the conduit. The conduit has a radially directed hole on each side of the plug. A tube is substantially concentric with the conduit and has end walls at opposite ends thereof adapted for the conduit to pass therethrough. At least one of the end walls has a second opening which can be stopped during sampling and unstopped for draining. During sampling, sample gases are drawn into one end of the conduit and the tube such that vapor condenses on an inner surface of the tube, entrained liquid collects on the inner surface and the gas enters the conduit on the other side of the plug and exhausts to an analyzer.

Abstract: A method and apparatus are provided for removing solid particles from a particle containing stream of fluid, the method including the steps of: inducing the stream to flow at supersonic velocity through a conduit; inducing a swirling motion to the supersonic stream of fluid thereby causing the particles to flow to a radially outer section of a collecting zone in the stream; and extracting the solid particles into an outlet stream from the radially outer section of the collecting zone. The apparatus is an apparatus effective for performance of this method.

Abstract: An air precleaner includes a base assembly, a hood mounted to the base assembly and spaced from the base assembly to define a circumferential gap, and a rotor assembly mounted for rotation within the air space between the hood and base assembly. The base assembly has an outlet port that is connectable to an engine intake. Inlet ports may be formed between web supports connecting an outer circumferential wall to an inner circumferential wall of the base assembly. A series of vanes are mounted in the gap between the hood and base assembly at an angle between radial and tangential to define channels between them through which air is directed into the air space between the hood and base assembly with both an inward and tangential component of velocity. The air drawn in through the channels between the vanes provides a strong tangential component of air velocity impacting upon the rotor to maintain high efficiency of particulate removal.

Abstract: The invention provides apparatus for separating particles from a fluid flow having a cyclonic separator (10) and a fan (12) for causing the fluid to flow through the cyclonic separator (10), the cyclonic separator (10) having an inlet (16) and an interior wall having a frusto-conical portion (18) tapering away from the inlet (16), wherein the fan (12) is positioned in the inlet (16) to the cyclonic separator (10) such that fluid passing through the fan (12) is accelerated towards the interior wall (18) and thereby given sufficient tangential velocity to cause cyclonic separation of particles from the fluid flow within the cyclonic separator (10).

Abstract: A transparent molded plastic lid for use on an auxiliary trash collection container used with a shop vacuum cleaner or dust collector system that permits inspection of the container contents without removal of the lid.

Abstract: A dust collecting container includes an annular lower portion and an annular upper portion having a first circumferential wall interposed between first annular upper and lower ends to define a first columnar chamber of a first length in a first axial direction, and a first annular flange which extends outwardly and radially from the first lower end.

Abstract: A molded plastic lid for use on an auxiliary trash collection container used with a shop vacuum cleaner or dust collector system. Incoming air and entrained materials are directed along the inside of the container at a shallow angle, and outgoing air is drawn from the center of the lid at a steeper angle. The resulting airflow in the container is a vortex or cyclone-like flow that deposits most of the incoming material within the container, thereby increasing the collection capacity of the system with which the lid is used by the volume of the auxiliary container.

Abstract: A trap for removing moisture from sampled gases containing moisture in vapor and/or entrained liquid form includes an elongate conduit having a plug substantially centrally positioned therein to prevent flow directly through the conduit, the conduit being provided with a radially directed hole on each side of the plug. A tube is substantially concentric with the conduit and has stoppers at opposite ends thereof with openings therein for the conduit to pass therethrough. At least one of the stoppers is provided with a second opening which can be stopped during sampling and unstopped for draining. During sampling, sample gases are drawn into one end of the conduit and exhausted radially into the space between the conduit and the tube such that vapor condenses on the inner surface of the tube, entrained liquid collects on the inner surface and the gas enters the conduit on the other side of the plug and exhausts to an analyzer.

Abstract: A compact system is provided for removing liquid from a gas stream exiting a natural gas wellhead. The system has an inlet pipe string communicating with the wellhead for delivering the gas stream therefrom. An elongate, generally cylindrical gas-liquid separator has an inlet communicating with the inlet pipe string for receiving the gas stream therein. The separator separates the liquid from the gas stream to provide a dried gas stream and temporarily stores a pre-set volume of the liquid. The separator includes a disengaging chamber in fluid communication with the inlet for changing the velocity of the incoming gas stream, and at least one baffle element in the disengaging chamber for engaging the gas stream to urge the liquid to coalesce thereon and fall by gravity toward one end of the separator. A separator outlet releases the dried gas stream to an outlet pipe string for transporting the dried gas stream to a gas distribution network.

Abstract: The invention provides a shroud (10; 40) for use in apparatus incorporating a cyclonic dust separation divice for separating dirt and dust from an airflow, the shroud (10; 40) having a perforated portion (14; 44) having a multiplicity of perforations (30; 46) for allowing the airflow to pass therethrough. According to the invention, the upstream edge of each perforation (30) meets the upstream surface (28) of the shroud (10) at a sharply defined angle. The invention improves the performance of the dust separation apparatus in conjunction with which the shroud (10; 40) is utilized.

Abstract: An air precleaner and method for centrifugally ejecting heavier-than-air particulate debris from an air stream utilizes a circular separator chamber formed with a toroidal dome for smooth airflow transition of the vortex airflow moving through the separator chamber in a cyclonic pattern upwardly from an inlet in a base of the precleaner past a debris ejection duct where it is folded over by the toroidal dome for whirlpooling down to an outlet in the base radially inwardly of and through the upwardly moving vortex airflow. The area for the airflow in the separator chamber progressively decreases linearly to increase the speed of the airflow in the chamber. A particle accelerator assembly includes a plurality of appendages that arc back from a central hub in a swept-back attitude relative to a direction of the vortex airflow.

Abstract: A molded plastic lid adapted to generally close off the upper open end of a container and adapted to enable separation of entrained particles from a stream of air for collection of the particles in the container. The lid is formed with circumferentially extending inlet and outlet chambers opening downwardly into the container and having inlet and outlet openings, respectively, for receiving and discharging the air stream. The inlet chamber is formed with an upper surface which slopes downwardly upon progressing from the inlet opening to cause the air entering the container to flow in a curved and downwardly inclined direction so as to establish a cyclonic action in the container for separation of the particles. The outlet chamber is formed with an upper surface which slopes upwardly upon progressing toward the outlet opening to cause the air exiting the container to flow in the same generally curved direction but at an upwardly inclined angle.

Abstract: A high efficiency air precleaner has a base assembly, a hood, and a rotor assembly. The base assembly includes an inner circumferential wall and an outer circumferential wall, the inner circumferential wall defining an air outlet port. Angled web supports connect the outer circumferential wall to the inner circumferential wall and their arrangement forms air inlet ports that direct air upon the rotor assembly. The rotor assembly includes a rotatable hub that has arms extending outward therefrom, each of the arms including a radial first blade, an axial second blade descending at a right angle from the first blade, a paddle at the outer end of each arm, and a tab extending downwardly from the second blade adjacent the hub. The first blade extends from the edge of the second blade forwardly in a direction corresponding to the direction of rotation of the hub. Air incident upon the arms causes rotation of the hub, the arms flinging particulates outward.

Abstract: This invention relates to a flue gas treatment apparatus for treating flue gas in which a contaminant in the form of fine solid particles and a gaseous air pollutant are mixed. In the flue gas treatment apparatus, a gas suction portion (29a) for drawing flue gas therethrough is formed in a funnel (27), jet nozzles (30a,30b,30c) for jetting out compressed gas along an inner peripheral wall of the funnel 27 are provided adjacent the gas suction port (29a), and a discharge port (27a) is formed in a lower part of the funnel (27).

Abstract: A device for separating liquids and/or solids from a high-pressure gas stream having a cylindrical vessel fitted with a top compartment into which the gas stream is fed, a middle compartment having a number of blades set helicoidally around the axis of the vessel, and a bottom compartment for separating the gas and the liquid and/or solids. A coaxial gas discharge pipe projects upwardly from the bottom compartment through the middle and top compartments, around which helicoidal blades have been fixed, each helicoidal blade being composed of a bottom section with a constant pitch and a section with a gradually increasing pitch. Vertical baffles are fitted between the helicoidal blades which, viewed in the flow direction of the gas, extend from the discharge pipe in the direction of the inner wall of the vessel. Conical sleeve sections are provided in the separation section of the device, at the outer wall of the gas discharge pipe.

Abstract: An improved apparatus for separating impurities from a stream of forced air by gravitational and centrifugal forces subjecting the air stream through a mesh coalescer to coalesce micro impurities of moisture or oil into large droplets which are forced through a helical passaway to condense into liquid. The separated liquid flows downwardly through a liquid protective unit into a liquid storage trap at the bottom of the device. The separated liquid when in the protective unit is free from the moving stream of forced air as latter swirls upwardly into an air filter and escape from an outlet port. The air stream once passed through the mesh coalescer, helical conduit and air filter is substantially free from any impurity.

Abstract: The air in which the oil particles are suspended is drawn from the environment through an air intake (4) as a result of the vacuum created by a centrifugal aspirator (11) and then passes along a substantially vertical duct (5) in which an internal helical element (6) causes the mechanical separation of the oil particles by centrifugal action due to the rotation of the air imparted by the helix, the oil particles collecting on the wall of the duct (5) from which they drain into a collecting hopper (2), after which the air is further filtered by an additional filter (9, 10) before reaching the delivery opening (13).