Abstract: Separators for use with gas turbine engines are disclosed herein. An example separator disclosed herein includes a first ring including a first surface, a second surface opposite the first surface, and a first opening extending from the first surface to the second surface, a second ring surrounding the first ring, the second ring including a third surface, a fourth surface, and a second opening extending from the first surface to the second surface, and a filter disposed between the first ring and the second ring, the filter disposed in a fluid pathway extending between the first opening and the second opening.

Abstract: An air filter has a filter housing having a raw air inlet and further has a filter element arranged in the filter housing. The filter element has a filter medium body and an end disk with a central primary air passage and a secondary air passage. The filter medium body annularly surrounds a longitudinal axis of the filter element and separates a raw side in the filter housing from a clean side inside the filter element. The filter housing has a primary air outlet communicating through the primary air passage with the clean side of the filter element. The filter housing has a secondary air outlet communicating through the secondary air passage with the clean side of the filter element. The secondary air outlet communicates with the secondary air passage through a channel arranged at the filter element, wherein the channel surrounds the primary air passage annularly and coaxially.

Abstract: A resin coating applying apparatus includes a housing, a lid, a lid actuator for actuating the lid openably and closably with respect to the housing, a resin supply for supplying a solid resin to a workpiece, a vacuum pump for evacuating a processing space hermetically sealed by the housing and the lid, and an atmospheric vent valve for introducing atmospheric air into the processing space to cool the resin applied to the workpiece. The housing includes a holding table and a holding table actuator for moving the holding table upwardly and downwardly. The lid includes an upper table disposed opposite the holding table and movable relatively closely to the holding table to spread the resin supplied to the workpiece and coat the workpiece with the resin. When the lid is closed, it covers the opening in the housing to create the hermetically sealed processing space.

Abstract: A flashing includes a first edge, a second edge opposite from the first edge, a first surface, and a second surface on an opposite side of the flashing from the first surface. The first surface and the second surface extend between the first edge and the second edge. The first surface includes a hydrophobic region and a hydrophilic region.

Abstract: A system for removing fine particulate matter from an aerosol, which, using a fine particulate matter capture device (1) comprising sheet members (2) parallel to each other and an interferent (3) between the sheet members, causes the aerosol to form a turbulent flow in passages between the sheet members (2), settles fine particulate matter in the aerosol on the outer surfaces of the sheet members under the action of turbulent fluctuation, thermophoretic force and/or vapor pressure gradient force, and meanwhile forms a water film on the outer surfaces of the sheet members (2) to prevent settled particulate matter from being carried away again by an air flow. The system is able to effectively remove fine particulate matter from an aerosol, especially sub-micron particulate matter, and significantly reduce the number concentration thereof.

Abstract: An omni-directional anemometer may include a housing, a cavity, and a plurality of ports in fluid communication with the atmosphere. The ports may include at least one sensor configured to measure air pressure. The robust housing may be formed by additive manufacturing, casting, machining, or molding. The anemometer may include a controller configured to determine wind speed and direction using the air pressure measurement signals from the at least one sensor. The anemometer may include a communication module configured to send and/or receive signals from the at least one sensor and the controller using wired and/or wireless communication. The communication module may send or receive signals to or from a network, a server, a vehicle, a structure, and/or a user interface. The anemometer may include a power supply connected to the at least one sensor, controller and/or communication module.

Abstract: The present invention relates to an apparatus for separation of high volume flows of mixtures provided with at least two immiscible phases, especially for the first separation steps of flows of water/oil/gas/sand mixture that enter the apparatus as a wellstream mixture. The invention also relates to a method for separation of high volume flows of mixtures provided with at least immiscible phases.

Abstract: A filter element for a filter for filtration of a fluid is insertable along an insertion direction into the filter. The filter element is provided with a filter medium to be flowed through along a main flow direction. The filter element has a clean side and a raw side. A sealing surface surrounds the filter medium, wherein the sealing surface, interacting with a filter housing of the filter when the filter element is in an installed state in the filter housing, separates the clean side from the raw side. A support edge exerts a force on the sealing surface by interacting with the filter housing of the filter when the filter element is in the installed state in the filter housing. The sealing surface and the support edge are positioned at an acute angle relative to each other.

Abstract: Air cleaner assemblies, components, and features are described. The features can be used to provide that the air cleaner assembly cannot be fully closed, even if a cartridge is nested therein, and appears to be sealed, unless that cartridge is a proper one for the system of concern. The effect is to prevent an inappropriate cartridge, that does not properly seal, from being inadvertently installed in the assembly.

Abstract: A separation element for a pressure accumulator system for separating liquid from a media stream is provided with a hollow cylindrical filter body. The filter body has a support body and a coalescing stage filter medium radially outwardly of the support body. The filter body is flowed through radially by the media stream and separates a dirty side from a clean side of the separation element. First and second end disks are disposed on opposite sides of the filter body. A receiving recess is arranged centrally on the first end disk and is open toward the filter body interior. The receiving recess supports the separation element on a central tube of the pressure accumulator system. The second end disk has an outlet opening. Liquid that has been separated by the filter body from the media stream drains via the outlet opening of the second end disk from the separation element.

Abstract: A system for compacting debris collected within a robotic vacuum debris container to allow more space for incoming debris. The volume of collected debris is reduced by pressure plates pressing the debris against surfaces so that the debris container may hold a greater mass of debris. The system allows robotic vacuums to operate for longer periods of time before requiring maintenance by a user to empty the debris container.

Abstract: A multi-phase pump system and method that directs incoming two-phase flow into a fixed cylinder that contains a vortical flow. The system includes a momentum-driven, vortex phase separator, the phase separator accepting liquid-gas flows at any ratio from all liquid to all gas. The pump system also includes a liquid prime mover; a gas prime mover; and a control system. The vortical flow is driven by injecting the two-phase or another fluid stream tangent or approximately tangent to the curved surface of the cylindrical chamber. Inertial forces generated within the vortical flow drive a buoyancy-driven separation process within the cylindrical chamber. Single-phase prime movers are then used to pump the separated phases to a higher pressure.

Abstract: Apparatus for conditioning of gases, particularly sealing gas, comprising a separator unit (3), particularly for separating liquids and/or particles from the gas flowing through the apparatus, and a collecting container (1) for the trapped substances, said apparatus being characterized in that the separator unit (3) has a cyclone separator (3).

Abstract: A vacuum cleaner includes a cleaner body and a dust container separably mounted on the cleaner body. The dust container includes a dust collection body including an opening, a wall, and a dust separation part. A cover covers the opening of the dust collection body. An air guide is disposed at the dust collection body, the air guide having an opening provides an inflow hole through which air separated from dust in the dust separation part is introduced, and a filter accommodated in the air guide filters the air separated from the dust. When the cover uncovers the opening of the dust collection body, the filter is visible through the opening of the air guide.

Abstract: A unit (2) for pumping air containing particles (5) and separating the particles (5) from the air comprises a housing (10) having a space (20) for receiving and storing the particles (5), and an air pumping device (30) being arranged inside the housing (10) and comprising a basic fan (31) intended for pumping air out of the particle storage space (20), and another fan (32) intended for separating the particles (5) from the air. A gap (22) is present between the fan arrangement of the air pumping device (30) and the housing (10), and in order to avoid a flow of air containing particles (5) through the gap (22), at least a major portion of the basic fan (31) is uncovered, so that a relatively strong pumping action on the basis of an interaction of an outer surface of the basic fan (31) with a stationary wall is avoided.

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 device for receiving and/or discharging a disposal medium from cleaning and/or rinsing processes of an application apparatus can comprise a separation equipment which is provided to receive the disposal medium discharged by the application device and to subject the disposal medium to a separation. The device can also comprise a receiving equipment which is provided to receive a disposal medium and a suction device which is provided to suction and/or suction off at least a part of the disposal medium led to or into the receiving equipment.

Abstract: A device for separating foreign material from air without the use of filters includes a chamber to receive the foreign material and air, an exhaust port and a pressure source that draws air from the chamber through the exhaust port, and an air inlet through which an additional quantity of air enters the chamber to move the foreign material away from the exhaust port so that the foreign material is not entrained in the exhaust air. A valve regulates the quantity of additional air introduced into the chamber through the air inlet. The exhaust port is positioned downstream of the air inlet. The foreign material collects in the dead air space of the receiving end of the chamber.

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: 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: 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: Provided is a vacuum cleaner. The vacuum cleaner includes a cleaner main body and a dust container communicating with the cleaner main body, the dust container storing dusts separated from air. The dust container includes a dust collection body including a dust storage part for storing the dusts, a pressing member for compressing the dusts stored in the dust collection body, and a cleaning member contacting an inner surface of the dust collection body to clean the inner surface of the dust collection body.

Abstract: An oil separator is provided with a case that has an air inlet and a plurality of expansion chambers formed within the case. Air that contains oil is introduced into the case via the inlet and caused to strike a impingement plate to thereby separate the oil from the introduced air and recover the oil. The transverse cross-sectional area of each expansion chamber is greater than the open area of the inlet. Partition walls with orifice holes formed therein are provided between the expansion chambers.

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: A water separator reduces a water content of an air stream, which is used in an HVAC unit for a vehicle. The water separator includes a diverter wall and an adjacent wall spaced from the diverter wall to define an air passage. The diverter wall has a terminal end extending into the air passage for changing a direction of the air stream flowing through the air passage to separate water droplets from the air stream to reduce the water content of the air stream. A gutter is coupled to the terminal end of the diverter wall and extends into the air passage. The gutter defines a drainage channel configured to receive the water droplets that form on the diverter wall for preventing the water droplets from reentering the air stream flowing through the air stream passage.

Abstract: Apparatus for centrifugal separation of solid and/or liquid particles from a flow of gas, wherein two or more rotors (12) provided with conical separation surface elements (16) are located in a surrounding stationary casing (14), which delimits a common chamber (15) for collecting particles separated in the rotors. Each rotor has a fan (26) rotating together therewith. The fans (26) of the rotors are located in a common fan housing (30) that is separate from and adjacent to the casing (14) defining the collection chamber (15).

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: Apparatus for separating ash particles from a flue gas. The apparatus includes a screen that has a plurality of semi-elliptical cylinder surfaces. The semi-elliptical cylinder surfaces having holes through which said flue gas flows and through which the ash particles will not pass. The screen has a single layer for performing the separation in a manner such that the ash particles fall away from the screen and collect outside of the screen. A method of reducing velocity of a flue gas passing through screening apparatus for separating flue gas from ash particles. The method includes replacing a first screen of the screening apparatus with a second screen that has a plurality of semi-elliptical cylinder surfaces.

Abstract: A disk brake pad (11) comprising a supporting base (13) with which a layer (15) of friction material is associated, characterized in that a wall (19) of said supporting base having associated therewith the layer of friction material is passed through by at least one channel (21, 23, 41) communicating with a chamber (17a, b), defined in correspondence of the supporting base, for collecting the powders produced due to the wear of the friction material.

Abstract: A dust collecting device is provided which is capable of preventing static charge while rationally collecting dust generated during operation. A dust collecting device is removably attached to a power tool and can be carried together with the power tool, and collects dust generated when a predetermined operation is performed on a workpiece by driving a tool bit coupled to the power tool. Further, the dust collecting device has a dust suction region that sucks dust generated during operation in response to the operation of the tool bit, a dust transfer region that transfers the dust sucked in the dust suction region, and a dust storage region that communicates with the dust transfer region and stores the dust. Furthermore, the dust collecting device has a grounding member through which static charge on the dust is dissipated.

Abstract: A chute receives contaminant gas-laden dust from a dust collector. At least one gas injector provides an upward flow of purge gas in the chute to release contaminant gas entrained with the dust. Downstream areas are maintained at positive pressure relative to upstream areas. A purge hopper arranged below the chute collects the dust. Dust handling apparatuses allow the upward flow of the purge and contaminant gases. Movable flaps in the dust handling apparatuses include perforations that may be capped to vary the gas flow rate. A dust discharge apparatus discharges washed dust from the purge hopper.

Abstract: A gas distributor for a granular moving-bed filter comprises a distribution module, arranged inside a granular moving-bed filter. The distribution module comprises at least one flow-distributing curtain to be used for allowing a turbulent gas flow with dust mixed therein to flow therethrough, resulting that before the turbulent gas flow enters the granular moving-bed filter, the turbulent gas flow is transformed into a more uniformly distributed gas flow and the dust contained therein are partially filtered out.

Abstract: A vacuum loader system is disclosed. In the vacuum loader system, the air inlet comprises a load-bearing member of a support structure that supports the system. The vacuum loader system also includes a filter chamber with co-located primary and secondary or safety filter elements. A safety filter element is at the center of the filter chamber, surrounded by primary filter elements. After the air flows through the primary and safety filter elements, it is directed downwardly, out of the filter chamber and back toward the blower, beyond which it is ultimately expelled through a silenced outlet. In some embodiments, the conduit that carries air from the filter chamber toward the blower may also be a member of the support structure.

Abstract: A cyclone comprises a second or lower portion that is pivotable with respect to a first or upper portion about an articulation between a first position and a second position; the second portion being aligned with the first portion along a first or vertical axis when the second portion is in the first position, and the second portion being aligned on a second axis that is different from the first axis when the second portion is moved from the first position to the second position. In various additional embodiments, the second axis may be normal to the first axis, for example, in the first position the lower portion is horizontal and in the first position the lower portion is vertical and aligned with the upper portion. The second position may be used as a cleaning position. When the lower portion is pivoted away from the upper portion, the vortex is interrupted. In the second position, the lower portion may also interface with a suction mechanism.

Abstract: An air and moisture separator for use with a waste tank and a vacuum source has a canister securable to the waste tank and having an inlet couplable to the waste tank and an outlet couplable to the vacuum source. An air flow path extends through the canister and through at least three different stages of air and moisture separation, including: a first air-turning stage coupled to the inlet; and a second stage of mesh or foam coupled to and subsequent to the first air-turning stage in the air flow path. An annular mesh or foam of greater density defines a third stage subsequent to the second stage, and circumscribes at least a majority of a circumferential perimeter of the mesh or foam of the second stage.

Abstract: An air cleaner includes a housing and an air filter element. An endcap of the air filter element provides a removable cover for the housing. The endcap includes removal, insertion, orientation, and retention structure and methods for same. A clamping arrangement is provided with minimal space requirements.

Abstract: A cyclone comprises a cyclone chamber having an air inlet, an air outlet, a first end wall, a second end wall and a sidewall, the air inlet has an inlet end having a shape and a cross sectional area in a plane transverse to a direction of airflow through the air inlet, and the air inlet is provided at a first juncture of the sidewall and the first end wall, wherein the first juncture downstream of the inlet is configured to at least approximate a portion of the shape of the air inlet that is adjacent the first juncture.

Abstract: A cyclone comprises a cyclone chamber having an air inlet, an air outlet, a first end wall, a second end wall and a sidewall, the air inlet has an inlet end having a shape and a cross sectional area in a plane transverse to a direction of airflow through the air inlet, and the air inlet is provided at a first juncture of the sidewall and the first end wall, the first end wall has a vortex finder having a wall that meets the first end wall at a second juncture, wherein the inlet is spaced from the vortex finder

Abstract: A powder cyclone separator for use in a powder coating system is contemplated that is formed in two separate and separable sections. An upper section of the cyclone is mounted on a first frame and remains stationary. A lower section of the cyclone is mounted on a second frame that is movable laterally away from the first frame so that an operator has more ready access to clean interior surfaces of the upper section. Optionally, actuators may be provided to vertically raise and lower the cyclone lower section with respect to the cyclone upper section. Various optional alignment means are presented for aligning the cyclone upper and lower sections. Preferably, a control mechanism is mounted on the second frame which includes a switch that is manually operated by the user to raise and lower the lower section with respect to the upper section. This design allows an operator to see, and therefore verify, that virtually all internal surfaces of the cyclone have been effectively cleaned.

Abstract: An air cleaner device for filtering intake air including a housing defining a chamber, a filter element disposed within the chamber, and a duct element having a passageway in fluid communication with the chamber. Further, the duct element extends along and downwardly from about a portion of the housing and further includes an inlet for drawing intake air into the chamber. The air cleaner having a base member in fluid communication with the chamber and an outlet, where the air drawn into the chamber is filtered by first and second filtering operations to obtain filtered air, with the first and the second filtering operations accomplished at least in part due to a cyclonic motion of the air and passage of the air through the filter element, respectively; and where the filtered air from the chamber of the housing is released through the outlet in the base member.

Abstract: A system for separating contaminants from an airstream, including a centrifugal fan and housing; a contaminant containment vessel mounted to an outer surface of the housing; and a diverter in the airstream downstream of the fan and within the housing, the diverter being configured to separate a portion of the airstream from a remainder of the airstream, accelerate the portion of the airstream towards the containment vessel, and thereafter guide the portion of the airstream towards the remainder of the airstream. The diverter preferably does not negatively impact the rated performance of the fan, such that a performance of the system is not measurably different than the rated performance of the fan and housing combination. The diverter may accelerate contaminants entrained in the airstream toward the containment vessel, thereby separating the contaminants from the airstream.

Abstract: The present invention relates to the use of a multi-layered structure for the manufacture of gas conducts, namely for methane. The multi-layered structure comprises, from the inside to the outside, the following successive layers: a layer containing at least one polyamide, wherein the polyamide is chosen from PA11, PA12 and an aliphatic polyamide obtained from condensation reaction of an aliphatic diamine having 6 to 18 carbon atoms and an aliphatic diacid having 9 to 18 carbon atoms; optionally, a binding 2 layer; and a layer 3 chosen from an EVOH layer, a layer formed of a mixture of polyamide and a polyolefin with a polyamide matrix, a layer of PA6, Pa6-6, MXD.6 or MXD.10 and a layer of semi-aromatic copolyamide, the layer 3 being intended to be in contact with the transported gas.

Abstract: A cyclone for a surface cleaning apparatus has spaced apart and opposed first and second cyclone chamber end walls and a cyclone chamber sidewall extending therebetween. At least one of the first cyclone chamber end wall and the second cyclone chamber end wall is openable so as to provide access to the cyclone chamber. An opening extends along only a portion of the perimeter of the cyclone chamber sidewall and is positioned adjacent the second cyclone chamber end wall, the opening defining the dirt outlet whereby dirt exiting the cyclone chamber via the dirt outlet travels in a generally outwardly direction to an exterior dirt collection chamber.

Abstract: Embodiments of a gas-solids separation unit and embodiments of a method for manufacturing a separation unit are provided. In one embodiment, the separation unit includes a cyclonic separator and a vessel having a flue gas chamber, a clean gas chamber, and an entrained solids chamber between the flue gas chamber and the clean gas chamber. The cyclonic separator includes, in turn, a cyclone barrel extending from the flue gas chamber toward the clean gas chamber, a swirl vane positioned across the cyclone barrel, a gas outlet tube fluidly coupling the cyclone barrel to the clean gas chamber, and a first check valve opening formed through the barrel sidewall upstream of the gas outlet tube. The check valve opening fluidly couples the cyclone barrel to the entrained solids chamber to permit the centrifugal separation of the particulate matter from the gas stream during operation of the gas-solids separation unit.

Abstract: A dust bin for a robotic vacuum comprises a dust bin frame having a cavity defined therein to receive debris, a filter frame disposed within the dust bin frame and defining two filter openings at opposite sides thereof, and a central impeller disposed adjacent to or under the filter frame to draw air from outside of the dust bin into the dust bin. The dust bin also comprises two air filters, one air filter being located on each side of the central impeller, each air filter being inserted into one of the filter openings, each filter having an overhang around a perimeter thereof that includes a sealing face to form a vacuum-assisted seal with the filter frame when air is drawn into the dust bin.

Abstract: An air cleaning system (10) is disclosed comprising a fire protection system. The fire protection system comprises at least one of (i) a spark arrestor (21), (ii) a particle feeder (31), (iii) a fire detection system; and (iv) a fire extinguishing system. A preferred spark arrestor comprises a particle pre-separator (22). A preferred particle pre-separator has a core-and-vane assembly that prevents air traveling through the particle pre-separator from traveling in a straight line.

Abstract: A disclosed oil separator provided in a flow path of a refrigerant gas flowing from a compressor to a refrigerator including a filter configured to form an internal space by including a filter material filtering out oil from the refrigerant gas, an upper lid bonded to an upper portion of the filter material, and a lower lid bonded to a lower portion of the filter material; a body accommodating the filter; a gas inlet pipe introducing the refrigerant gas into the internal space; and a gas outlet pipe ejecting the refrigerant gas from which the oil is filtered out by the filter from an upper portion of the body, wherein a lower end of the gas inlet pipe is opened to the internal space at a position higher than the lower lid and lower than a substantial center between the upper lid and the lower lid.

Abstract: An air filter has a hollow cylindrical filter housing having a first axial terminal area and a second axial terminal area and a cylindrical outer filter housing wall and a ring-shaped flow guiding wall. The ring-shaped flow guiding wall extends coaxially to the cylindrical outer filter housing wall in the interior of the filter housing. A ring-shaped flow space is formed between outer filter housing wall and flow guiding wall. A filter element of an annularly closed filter medium is disposed in the filter housing. The flow guiding wall surrounds the filter element. An inlet socket is arranged on the outer filter housing wall in the first axial terminal area and extends tangentially relative thereto. The inlet socket has a projection that projects into the ring-shaped flow space and bridges the ring-shaped flow space up to the flow guiding wall.

Abstract: A vacuum cleaner is disclosed. The vacuum cleaner includes a body having a vacuum motor provided therein; a dust collection device provided in the body to collect dust; a dust compression device expandable or contractible selectively; a passage switching device configured to selectively communicate the dust compression device with a low pressure part having a lower pressure than a pressure of the dust collection device and a high pressure part having a higher pressure than a pressure of the dust collection device.

Abstract: A passive phase separator separates and traps gases that may be present in a liquid flowing through a system. The phase separator includes an inlet in fluid communication with a first separator chamber and an outlet in fluid communication with a second separator chamber that is disposed annularly about the first separator chamber. Gas introduced into the first separator chamber is pushed downstream through the first separator chamber to a gas storage chamber. Once gas is trapped within the gas storage chamber it remains there for the entire operational life of the phase separator.