Abstract: A cyclonic separation device and a vacuum cleaner including the cyclonic separation device are disclosed. The cyclonic separation device includes a housing and a cyclonic separation device. The cyclonic separation device is provided in the housing to allow dirt in a dust-containing airflow to be separated. The cyclonic separation device includes a first-stage cyclone separator and second-stage cyclone separators located downstream of the first-stage cyclone separator in a flow direction of the airflow. The second-stage cyclone separators surround the first-stage cyclone separator. The first-stage cyclone separator includes an air guide channel and a first-stage cyclone channel surrounding a part of the air guide channel. The dust-containing airflow enters, from the air guide channel, the first-stage cyclone channel for cyclonic separation and then enters the second-stage cyclone separators again through the air guide channel.

Abstract: An evacuation station includes a base and a canister removably attached to the base. The base includes a ramp having an inclined surface for receiving a robotic cleaner having a debris bin. The ramp defines an evacuation intake opening arranged to pneumatically interface with the debris bin. The base also includes a first conduit portion pneumatically connected to the evacuation intake opening, an air mover having an inlet and an exhaust, and a particle filter pneumatically the exhaust of the air mover. The canister includes a second conduit portion arranged to pneumatically interface with the first conduit portion to form a pneumatic debris intake conduit, an exhaust conduit arranged to pneumatically connect to the inlet of the air mover when the canister is attached to the base, and a separator in pneumatic communication with the second conduit portion.

Abstract: Disclosed is a device for cooling particulate materials or particles, in particular granulates of polymeric materials, having an outer container with an, in particular frustoconical, outer shell surface and an inner container, which is arranged at least in sections in the interior of the outer container, with an, in particular frustoconical, inner shell surface, wherein an intermediate space is formed between the outer shell surface and the inner shell surface, wherein an inlet equipment for introducing a gas flow as well as the particles into the intermediate space is provided in an inlet-side initial region of the device, and wherein an outlet opening for the particles is provided in an outlet-side end region of the device opposite the inlet equipment, wherein the inlet equipment is so arranged and/or designed that the gas flow as well as the particles can be introduced substantially tangentially into the intermediate space.

Abstract: A combustion air filtration apparatus for filtering combustion air for an engine is disclosed. The combustion air filtration apparatus comprises a combustion air source and a filter system fluidly coupled to the combustion air source and to the engine to receive combustion air from the combustion air source and to supply filtered combustion air for the engine. The filter system comprises a first combustion air filter, a second combustion air filter flow-parallel to the first combustion air filter, and a flow control system fluidly coupled to the first combustion air filter and the second combustion air filter to direct flow of combustion air selectively between the first combustion air filter and the second combustion air filter.

Abstract: The aircraft engine can have an air-oil separator having an air-oil mixture inlet, an oil outlet, an air outlet, and a pressure relief path provided fluidly in parallel with the air-oil separator, between the air-oil mixture inlet and the air outlet, the pressure relief path can have a pressure relief valve for evacuating air-oil mixture to the exhaust duct in the event of excess pressure in the auxiliary gearbox.

Abstract: A demister for a gearing system includes a main body shaped as a disk having an inner annular rim coupled to an outer annular rim through a first wall and a second wall opposite from the first wall. A central opening is defined by the inner annular rim and extends between and through the first wall and the second wall. The main body is configured to be rotated about a central longitudinal axis to create centrifugal forces that separate oil mist particles from air. At least one fluid passage extends radially between and through the inner annular rim and the outer annular rim. The fluid passage(s) includes a fluid inlet opening in the outer annular rim and a fluid outlet opening in the inner annular rim. The fluid inlet opening is configured to accept incoming air. The fluid outlet opening is configured to discharge filtered air.

Abstract: The present disclosure relates to a decompression apparatus for superheated steam comprising: a temperature raising unit having an inlet connected to an exit side of a boiler for introducing steam discharged from the exit of the boiler, and an outlet for raising the temperature of steam introduced through the inlet and discharging it; a steam utilizing unit connected to the outlet and using the steam discharged from the outlet; and a decompression unit installed at one or all of a section between the exit side of the boiler and the inlet and a section between the outlet and the steam utilizing unit, the decompression unit controlling temperature of steam while decompressing pressure of steam. According to the decompression apparatus for superheated steam, it is possible to control the pressure and temperature of steam more precisely.

Abstract: A flexible electrode assembly for an air treatment device comprising: a flexible dielectric layer forming an insulating sheet; a plurality of conductive tracks on a first side of the insulating sheet; a conductive layer on a second side of the insulating sheet; wherein supply of voltage to the conducting tracks and the conductive layer generates plasma which is discharged from the conducting tracks. In a further aspect, the present invention also provides an air treatment apparatus for removal of health threatening airborne pollutants, which may include pathogens, from an air flow, the air treatment apparatus comprising an apparatus having a generally cyclonic-shaped geometry comprising a cylindrical section and a conical section. The present invention also relates to an air treatment device comprising the flexible electrode assembly.

Abstract: A cyclone vacuum cleaner includes two suction fan stages, three stages of separation, plus a HEPA filter and allows capturing of wet or dry material in bag-less or bagged configuration in non-porous paper or plastic bags as well as ordinary garbage bags with pull tie tops for removal, with no suction loss. A steam generator may be added to provide substitute working vacuum fluid to the normal air for dirt pickup. Acoustic sound dumping may also be provided in the architecture of the assembly.

Abstract: A device for separating liquid from a volume flow of a gas-liquid mixture may include a separating element and a deflection arrangement for deflecting the volume flow in a direction of the separating element to precipitate liquid on the separating element and thereby separate the liquid. The deflection arrangement may comprise a flow channel that extends axially away from a volume flow inlet and comprises an aperture area that extends axially on the flow channel. The aperture area may be at least partly covered by a covering means that is movable relative to the aperture area. The covering means may be movable to different extents at two axially-spaced locations to influence a magnitude of a part volume flow of the deflected volume flow flowing out of the flow channel through the aperture area at one axial location differently than at another axial location.

Abstract: A surface-based separation assembly for use in separating fluid. The surface-based separation assembly includes a gas-liquid separator configured to receive a fluid stream, and configured to separate the fluid stream into a gas stream and a mixed stream of at least two liquids. A liquid-liquid separator is in flow communication with the gas-liquid separator. The liquid-liquid separator is configured to receive the mixed stream from the gas-liquid separator, and is configured to separate the mixed stream into a first liquid stream and a second liquid stream. The assembly further includes a rotatable shaft including a first portion extending through the gas-liquid separator, and a second portion extending through the liquid-liquid separator. The rotatable shaft is configured to induce actuation of the gas-liquid separator and the liquid-liquid separator.

Abstract: A vacuum cleaner comprising a cyclonic separating apparatus including a dirty air inlet, a main body connected to the cyclonic separating apparatus and a motor and fan unit for generating an airflow through the cyclonic separating apparatus from the dirty air inlet to a clean air outlet, wherein the cyclonic separating apparatus includes at least a first cyclonic cleaning stage and an elongate filter arranged fluidly downstream from the first cyclonic cleaning stage, the elongate filter being housed in a duct at least partially surrounded by the first cleaning stage, and wherein the filter comprises an inlet portion and a filter portion defining a generally tubular filter chamber, the inlet portion including one or more radially facing inlets to permit air to flow into the inlet portion in a radial direction from where the air flows from the inlet portion to the filter chamber in an axial direction.

Abstract: A cleaner includes: a suction motor that generates suction force; a dust separation unit that separates dust from air sucked by the suction force; a motor housing that covers the suction motor; a flow guide that surrounds an outer side of the motor housing and guides air discharged from the dust separation unit to the suction motor; and a body that forms an external appearance by surrounding the flow guide and guides air discharged from the suction motor together with the flow guide.

Abstract: A device for separating gas and liquid from a mixture of gas and liquid phases includes a fluid guide member comprising a fluid inlet and a fluid outlet connected by a conduit configured as an elongated spiral disposed about an axis. A liquid coalescing medium is disposed on an exterior surface of the fluid guide radially outward from the elongated spiral conduit with respect to the axis. The separator also includes a plurality of radial channels providing radial flow paths for fluid from the elongated spiral conduit to the coalescing medium.

Abstract: A cleaner includes: a suction motor that generates suction force; a dust separation unit that separates dust from air sucked by the suction force; a motor housing that covers the suction motor; a flow guide that surrounds an outer side of the motor housing and guides air discharged from the dust separation unit to the suction motor; and a body that forms an external appearance by surrounding the flow guide and guides air discharged from the suction motor together with the flow guide.

Abstract: A cleaner includes: a suction motor that generates suction force; a dust separation unit that separates dust from air sucked by the suction force; a motor housing that covers the suction motor; a flow guide that surrounds an outer side of the motor housing and guides air discharged from the dust separation unit to the suction motor; and a body that forms an external appearance by surrounding the flow guide and guides air discharged from the suction motor together with the flow guide.

Abstract: A cyclonic separation apparatus for a vacuum cleaner comprising: a cyclone with a longitudinal central axis; a discharge nozzle at a longitudinal end of the cyclone; an air inlet port arranged tangentially through a side of the cyclone; an air outlet port through an opposite longitudinal end of the cyclone; and a dirt container in communication with the cyclone, wherein the dirt container comprises: a base wall penetrated by the discharge nozzle; a top wall spaced apart from the base wall; and a perimeter wall interposing the base wall and the top wall, wherein the dirt container is arranged to convey air flow from the cyclone in an elongate circuit defined by the perimeter wall. A vacuum cleaner comprising: a motor coupled to a fan for generating air flow; and the cyclonic separation apparatus.

Abstract: A vacuum cleaner including a cleaner body; and a dust collector provided in the cleaner body, wherein the dust collector includes a first cyclone provided within an outer case to filter foreign matter and dust from air introduced into the dust collector; a second cyclone accommodated within the first cyclone to separate fine dust from the air introduced into the first cyclone; and a rotatable shell provided at a lower side of and surrounding the first cyclone so as to define a first storage section configured to collect foreign matter and dust filtered by the first cyclone between the rotatable shell and the outer case, wherein the rotatable shell includes a skirt having a plurality of steps arranged along a circumference of the rotatable shell.

Abstract: A cyclone assembly for a surface cleaning apparatus has an openable lower end, a first cyclonic cleaning stage, a second cyclonic cleaning stage, and an airflow passage from the first cyclonic cleaning stage to the second cyclonic cleaning stage. The lower end is moveable to an open position in which at least a portion of the air flow passage is opened.

Abstract: A device for the cyclonic separation of solid particles contained in a fluid, comprising a primary cyclone chamber, a secondary cyclone chamber, an inlet channel for fluid loaded with solid particles opening into the primary cyclone chamber, an outlet channel for fluid cleaned of the solid particles connected to the secondary cyclone chamber, and a ducting unit connecting the primary cyclone chamber to the secondary cyclone chamber and surrounded by the primary cyclone chamber. The ducting unit comprises a core delimiting the secondary cyclone chamber and having at least one helical groove having a bottom which diverges away from an axis of the secondary cyclone chamber in a direction towards the latter, and a cap covering a part of the core in such a way as to delimit, with the groove, a channel connecting the primary cyclone chamber to the secondary cyclone chamber.

Abstract: A vacuum cleaning apparatus including a cyclonic separating apparatus having a first cyclonic separator, a second cyclonic separator downstream, a first dirt collector for collecting dirt from the first cyclonic separator comprising an end wall, and a second dirt collector for collecting dirt from the second cyclonic separator comprising an outer wall and at least a portion of the end wall. The first dirt collector and the outer wall of the second dirt collector are movable between a closed configuration in which the end wall abuts the outer wall and an open configuration in which the end wall is spaced from the outer wall for removing dirt from the second collector. The apparatus comprises a detent mechanism for permitting movement of the first dirt collector and the outer wall of the second dirt collector from the closed to the open configurations and to prevent movement into the open configuration.

Abstract: A gas turbine engine is provided including a shaft coupling a compressor of a compressor section to a turbine of a turbine section. An aft bearing assembly, including at least two bearings, is positioned at least partially in an aft sump and supports the shaft within the turbine section. The aft sump is configured to receive lubrication oil from a lubrication oil supply extending through at least a portion of a turbine center frame of the turbine section, and provide such lubrication to the at least two bearings of the aft bearing assembly.

Abstract: An atmospheric vertical oilfield tank designed to pre-condition oilfield fluid streams. Flow enters on tangent a vertical cyclone tube located within the tank and rotates inside the tube. Solids fall downward out of the tube to the bottom of the tank; gases exit upward out of the tube and vent from the tank. Liquids exit the cyclone tube tangential to the ID of the tank, additional solids separation due to impingement, and the liquid flows into the body of the tank where flow slows to allow for settling of solids. Solids are periodically removed from the bottom of the tank. The liquid flows over the top of multiple vertical flow dividing tubes located at the same elevation within the tank, creating separate and equal effluent discharge streams. The tank is taller than destination vessels to provide the height differential necessary to create flow into subsequent tanks without using pumps.

Abstract: A dust collector for a vacuum cleaner disclosed herein includes a first cyclone to separate dust from air introduced from a lower portion thereof with containing foreign materials and discharge the separated dust into a first dust storing unit, a second cyclone configured to separate fine dust from the air, from which the dust has been separated by the first cyclone, and discharge the separated fine dust, a second dust storing unit that is provided in the first cyclone, and located in a second case to collect therein the fine dust discharged from the second cyclone, and a lower cover to define a bottom surface of the first dust storing unit, the second dust storing unit and the first cyclone upon being closed, and discharge therethrough the foreign materials collected in the first dust storing unit, the second dust storing unit and the first cyclone upon being open.

Abstract: A journal configured to be driven in rotation in a housing of a turbine engine, or for an aircraft, the journal including: a circumferential main body including plural ventilation openings configured to allow plural axial airflows to circulate from upstream to downstream in the turbine engine, two consecutive ventilation openings being connected by a connecting segment, and a circumferential ring for recovering a flow of lubrication oil, which ring is rigidly connected to the main body and is radially inside the ventilation openings, the circumferential ring including plural radial discharge openings for allowing plural radial flows of oil to be discharged towards the outside, each discharge opening being radially aligned with a connecting segment of the main body to allow each flow of oil to be discharged radially between the airflows.

Abstract: A cyclone vacuum cleaner includes two suction fan stages, three stages of separation, plus a HEPA filter and allows capturing of wet or dry material in bag-less or bagged configuration in non-porous paper or plastic bags as well as ordinary garbage bags with pull tie tops for removal, with no suction loss. A steam generator may be added to provide substitute working vacuum fluid to the normal air for dirt pickup. Acoustic sound dumping may also be provided in the architecture of the assembly.

Abstract: A vacuum cleaner having a vac motor and a separating assembly for separating out dust particles entrained in an airflow drawn through the separator by the vac motor. The separating assembly is a multi-stage separating assembly comprising a primary separation stage and a secondary, non-cyclonic separation stage which is downstream of the primary separation stage, the non-cyclonic separation stage comprising a flow bend for changing the direction of the airflow thereby to separate out dust particles entrained in the airflow. A primary dust collector is provided for collecting dust particles separated out by the first separation stage, and a secondary dust collector is provided for collecting the dust particles separated out by the flow bend, wherein the primary dust collector at least partly surrounds the secondary dust collector.

Abstract: A cyclonic separator comprising a ring of cyclone bodies and an outlet duct through which cleansed fluid is discharged from the cyclonic separator, wherein the outlet duct extends between two adjacent cyclone bodies.

Abstract: The present invention describes a jet engine with at least one oil separator, through which an air-oil volume flow can be guided out of at least one area supplied with oil for separating the oil. In accordance with the invention the air-oil volume flow from the area supplied with oil can be introduced into the oil separator via an interior of an accessory gearbox casing. The air can be discharged from the oil separator via an air outlet and the oil via an oil outlet.

Abstract: The present disclosure provides a home cleaning appliance including a housing having a nozzle, which includes a main suction opening. An airstream suction source is mounted to the housing and includes a suction airstream inlet and a suction airstream outlet. A cyclone main body is mounted to the housing and communicates with the nozzle main suction opening. The cyclone main body includes a first stage separator and a plurality of second stage separators. A dirt cup is connected to the cyclone main body for collecting dust particles separated by the first stage separator and the plurality of second stage separators. An air manifold is mounted to the first stage separator for fluidly connecting the first stage separator to the plurality of second stage separators.

Abstract: A cyclonic separator comprising a first cyclone stage, a second cyclone stage and an inlet duct. The first cyclone stage comprises a cyclone chamber and a first dirt collection chamber. The second cyclone stage is located downstream of the first cyclone stage and comprises a second dirt collection chamber. The inlet duct carries fluid from an opening in the base of the cyclonic separator to the cyclone chamber, and the first dirt collection chamber surrounds at least partly the inlet duct and the second dirt collection chamber.

Abstract: A cyclone comprises a cyclone chamber having a first end having a first end wall, a second end having a second end wall, a sidewall, an air inlet at the first end, an air outlet and a first central insert member extending away from a center of the second end wall into the cyclone chamber wherein the first central insert member comprises a central member wall extending away from the second end wall and the central member wall and the second end wall meet at a first juncture that extends at an angle to both the central member wall and the second end wall.

Abstract: A process for converting a solid biomass material is provided. The solid biomass material is contacted with a catalytic cracking catalyst at a temperature of more than 400° C. in a riser reactor to produce one or more cracked products. The riser reactor is an external riser reactor with a curve and/or low velocity zone at its termination and wherein a part of the catalytic cracking catalyst has deposited in the curve and/or low velocity zone.

Abstract: A dust collection unit includes a swirl chamber, dust collection chambers, a discharge pipe, an inlet pipe, a bypass inlet, and a bypass inlet airflow passage. The swirl chamber swirls, along a side wall, dust-containing air having entered from a primary inlet and a secondary inlet having a smaller opening area than the primary inlet, and separates dust from the dust-containing air. The dust separated by the swirl chamber is collected by the dust collection chambers. A discharge pipe has a discharge opening. The inlet pipe allows the dust-containing air to flow from the primary inlet into the swirl chamber. A bypass inlet is formed in the inlet pipe. The bypass inlet airflow passage allows the dust-containing air in the inlet pipe having entered from the bypass inlet to flow from the secondary inlet into the swirl chamber.

Abstract: A separating apparatus comprises a first cyclonic separating unit and a second cyclonic separating unit located fluidly downstream therefrom and including a plurality of second cyclones arranged fluidly in parallel about a first axis and grouped into at least a first and second set of second cyclones arranged about the first axis. Each cyclone in the first and second sets of second cyclones defines a longitudinal axis and includes a fluid inlet and a fluid outlet. The fluid inlets of the first set of second cyclones are spaced along the first axis from the fluid inlets of the second set of second cyclones, and each outlet of the cyclones in the first and second sets of second cyclones is in fluid communication with an outlet duct, wherein the outlet duct includes a first portion which extends between two of the cyclones of at least the first set of second cyclones.

Abstract: A system for air purification using cyclone separators mounted with wall structures is disclosed. Air entering a building is filtered by passage through a coupled array of cyclone separators mounted within concrete blocks. Each cyclone separator is composed of two components, a cyclone chamber and a coupler. The coupler contains the air inlet, air outlet, as well as baffles to induce cyclonic flow within the chambers. The cyclone chambers can be fashioned as cavities within solid concrete blocks or added as separate components to the couplers. Both the couplers and chambers can be employed within hollow construction blocks, and the couplers can be further incorporated within gaskets that fit between rows of construction blocks.

Abstract: A vacuum cleaner has a cyclone separator for separating dirt and other contaminants from a dirt-containing working airstream and a collection chamber collecting the separated dirt. The vacuum cleaner can further include handle defining a fines catcher downstream of the cyclonic separation stage for collecting fine dirt, where the handle can be used to remove the fines catcher and/or an exhaust grill from the cyclone separator.

Abstract: A cyclonic separation apparatus for a vacuum cleaner, the cyclonic separation apparatus comprising: a first cyclonic separating unit comprising a hollow cylindrical dirt container with a central axis and an air inlet port arranged tangentially through a side of the dirt container; a second cyclonic separating unit comprising at least one cyclone with an axial inlet port, an axial outlet port and a discharge nozzle and a substantially cylindrical intermediate wall surrounding the inlet port of the at least one cyclone, wherein the cyclonic separation apparatus comprises at least one protruding lip arranged to impede return of separated material from said longitudinal end of the dirt container and wherein the at least one lip protrudes radially inwardly from an inner surface of the dirt container or protrudes radially outwardly from the intermediate wall.

Abstract: A dust-collecting device of a secondary dust-collecting machine includes a wind guide barrel having a wind intake and a bottom disposed with a dust-collecting barrel. The wind guide barrel further has its topside mounted with a wind duct installed thereon with a blowing fan and connected with a dust-collecting box, which has a plurality of centrifugal type dust collectors set therein. Thus, outside dust accompanying air can be sucked into the wind guide barrel through the wind intake by the suction of the blowing fan to have the dust with comparatively large diameter first collected by the dust-collecting barrel. Then, the remaining dust with lighter mass will be collected for a second time by the centrifugal type dust collectors and filtrated by the filter screen for completely filtrating and removing the dust from the operation environment.

Abstract: An apparatus for controlling a flow of gas comprises a spiral path guiding member. The spiral path guiding member comprises at least two groups of guiding plates. Each guiding plate of each group is disposed in an axial direction to form a longitudinal axis. Each group is spaced apart in the longitudinal direction. A surface of each guiding plate is substantially parallel to the longitudinal axis. At least one guiding plate of each group has a guiding plate opening. Guiding plate openings of the guiding plates may facilitate gas to flow in a spiral flow path.

Abstract: A motor, fan and cyclonic separation apparatus arrangement for a vacuum cleaner comprising: a motor coupled to a fan for generating air flow; and a cyclonic separation apparatus located in a path of the air flow generated by the fan. The cyclonic separation apparatus comprises: a plurality of cyclones each with an air inlet port and an air outlet port; and a cooling air flow path. The motor comprises a permanent magnet brushless motor, a switched reluctance motor or a flux switching motor. The fan has an outer diameter the same or less than the diameter of the motor. The plurality of cyclones, the motor and the fan are arranged in a circular array about a central axis of the cyclonic separation apparatus. The arrangement comprises a baffle for directing air flow from the fan out of the circular array. The motor is located in the cooling air flow path.

Abstract: A vacuum cleaner operable to separate debris from an air stream. The vacuum cleaner includes a first cyclonic separator and a second cyclonic separator having an inlet configured to receive the air stream from the first cyclonic separator. The inlet of the second cyclonic separator directs the air steam in an inlet flow direction from an upper end of the first housing toward a lower end of the first housing and along a longitudinal axis into the second cyclonic separator. The inlet of the second cyclonic separator has an inlet cross-sectional area for flow of the air stream measured normal to the longitudinal axis that decreases in the inlet flow direction.

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: A cyclone separator (1) for separating particles from a gas flow, includes: a first housing component (3) with a guiding apparatus (7) for providing the inflowing gas flow with an angular momentum, a second housing component (4) with an immersion tube (10) through which the cleaned gas flow can be discharged, and a cyclone tube (9) which surrounds the immersion tube (10) and on which at least one opening (11) is formed for discharging the particles that are separated from the gas flow. The cyclone tube (9) is formed on the second housing component (4).

Abstract: A purifying device provided with a device for collecting particles, such as dust includes a chamber having an inner wall that is generally cylindrical around a central axis (X), the inner wall extending parallel to the central axis between first and second substantially parallel faces, wherein the chamber has an inlet opening and an outlet opening. The collecting device also includes a rotor which is rotatable around the central axis, and which includes at least three blades, each of which extend radially from a rotary shaft to the inner wall while defining, within the chamber, compartments which are sized such that the inlet and outlet openings are in constant communication with separate compartments. The inlet opening is provided in the first base and the outlet opening is provided in the second base.

Abstract: This invention relates to an in-situ cleaning fixture for mist removal separator vane assemblies. The cleaning fixture includes an injection chamber with an inlet and a perforated plate which extends horizontally, substantially over the length of the mist removal separator vane assembly. A cleaning fluid source is connected to the injection chamber during a cleaning process. The injection chamber is designed to receive the cleaning fluid, pass the cleaning fluid through the holes formed in the plate, downwardly along a plurality of vanes in the mist removal separator vane assembly and into the drain trough. The in-situ cleaning fixture facilitates removal of scale build-up from the mist removal separator vane assembly and thereby restores the efficacy of the vanes.

Abstract: A vacuum cleaner comprising: a motor coupled to a fan for generating air flow; an elongate body with a handle at longitudinal end and a cleaner head arranged at an opposite longitudinal end; a dirt separation means located in a path of the air flow generated by the fan; and at least one support wheel for supporting the vacuum cleaner upon a floor, wherein the dirt separation means comprises: a hollow substantially cylindrical dirt container with a longitudinal central axis arranged transverse to the elongate body; and an air inlet port to the dirt container, wherein the air inlet port is in communication with the cleaner head located in the path of the air flow upstream of the dirt separation means and wherein the at least one support wheel rotates about the dirt container.

Abstract: A cyclone separator has a cyclone arrangement with individual cyclones each provided with a cell tube and guide device. The guide device causes a gas stream passing through the cell tube to rotate. At least one particle discharge is positioned perpendicularly to a longitudinal axis of the cyclone separator and discharges separated particles that have been separated from the gas stream in the cyclone arrangement. The cell tubes, for a targeted discharge of the separated particles, each have at least one particle outlet opening that is facing the particle discharge. The particle outlet openings of at least some of the individual cyclones, neighboring each other in the direction of a first perpendicular line that is perpendicular relative to the longitudinal axis of the cyclone separator, are displaced relative to each other in the direction of the longitudinal axis of the cyclone separator.

Abstract: Systems and methods for gasifying a feedstock are provided. A gasifier can include a transfer line having a first leg and a second leg. A first end of the first leg can be adapted to be coupled to a cyclone and a second end of the first leg can be coupled to a first end of the second leg. The second end of the second leg can be adapted to be coupled to a standpipe. A centerline through the first leg can be oriented at an angle with a centerline through the second leg of from about 40° to about 140°.

Abstract: A cyclonic separation device in accordance with an embodiment of the present application preferably includes a first cyclone chamber having a cylindrical shape with a predetermined diameter, the first cyclone chamber including, a tangential inlet positioned on a first longitudinal end of the first cyclone chamber, a baffle plate positioned in the first cyclone chamber a predetermined distance from the tangential inlet, a tangential dirt outlet positioned on a second end of the cyclone chamber, opposite the inlet and on an opposite side of the baffle plate from the tangential inlet and a center exit duct mounted in the center of the cyclone chamber having an inlet opening positioned upstream from the baffle plate such the centrifuged fluid without particles flows into the center exit duct and out of the cyclone chamber.