Abstract: An arrangement for filtering a particulate-laden fluid stream in a confined flow-through passage which includes a porous filter media extending thereacross and a velocity distribution control member cooperative with said filter media to preselectively control the velocity of the fluid stream as such fluid stream passes through the entirety of the porous filter media.

Abstract: The present disclosure relates to systems and methods that use a hydrophobic medium to remove salt and moisture from the intake air of a gas turbine system. The disclosure also relates to systems and methods that use a two stage filtering process to remove particulate material, salt and moisture from the intake air of a gas turbine system. Particulate material is filtered from the intake air at a first stage air cleaner. Subsequently, salt and moisture are removed from the intake air at a second stage salt barrier located downstream from the first stage air cleaner. In certain embodiments, the second stage salt barrier uses a hydrophobic medium to remove salt and moisture from the intake air.

Abstract: An arrangement for separating a hydrophobic liquid phase from a gaseous stream includes a coalescer filter, a housing, a gas flow direction arrangement, and a liquid collection arrangement. The coalescer filter includes a non-woven media of fibers. The housing includes an interior having a gas flow inlet and a gas flow outlet. The liquid collection arrangement is positioned within the housing construction and is oriented for receiving liquid collected from the coalescer filter and drained therefrom.

Abstract: An apparatus for separating and filtering pollutants from a fluid flow by using inertia to separate a proportion of the pollutants from the fluid flow passing through a constricted passage between a pair of filter elements to an outlet between the filter elements. The constricted passage causes the major portion of the fluid flow to be diverted to pass through the filter elements to the outlet in a direction whereby the filtered fluid flow exits into the outlet of the constricted passage. The apparatus also includes a device to periodically clean the filter elements whilst in position in the apparatus.

Abstract: The present disclosure relates to systems and methods that use a hydrophobic medium to remove salt and moisture from the intake air of a gas turbine system. The disclosure also relates to systems and methods that use a two stage filtering process to remove particulate material, salt and moisture from the intake air of a gas turbine system. Particulate material is filtered from the intake air at a first stage air cleaner. Subsequently, salt and moisture are removed from the intake air at a second stage salt barrier located downstream from the first stage air cleaner. In certain embodiments, the second stage salt barrier uses a hydrophobic medium to remove salt and moisture from the intake air.

Abstract: An air filter apparatus includes a filter body mountable in a support surface. A filter insert is mounted in a bore extending from one end of the body. A labyrinth air flow path is formed between a portion of the exterior surface of the filter body and an end cap mounted over an end portion of the body and through the filter insert in the bore in the body to prevent the ingestion of fluid through the filter.

Abstract: An appliance for using suction to pick up liquid includes a collection container (10) with an air/liquid separator (30) arranged at a corner between two adjacent walls (13, 14) of the container and extending obliquely relative to both side walls. The separator (30) includes an inlet tube (31) which terminates in an outwardly widening outlet end portion (33) which discharges directly into the collection container (10). The inlet tube (31) and end portion (33) extend into the container (10) through an air outlet chamber (20) which is connected at an outlet opening (17) of the container (10). A filter element (40) is provided at the mouth (24) of the outlet chamber (20) and around the outlet end portion (33) of the inlet tube (31).

Abstract: A combined filter and HME has a rectangular housing with an inlet port and an outlet port. A pleated filter element is located in the housing towards the outlet port and an HME element is located towards the inlet port. An oval deflector between the HME element and the inlet port is oriented with its longer axis aligned with the shorter lateral dimension of the housing, so that gas from the inlet is deflected preferentially along the longer lateral dimension of the housing, thereby giving a more evenly distributed gas flow over the surface of the HME element.

Abstract: An aerosol sampler for use with a source of vacuum. Air is drawn through a perforated hemisphere, directing small particles and aerosols for collection on a filter surface downstream of the hemisphere. A high collection efficiency is demonstrated.

Abstract: An integrated powder collection system for paint spray booths is provided for paint spray booths having a floor through which overspray and air are exhausted. The powder collection system includes at least two sloped surfaces disposed beneath the floor for defining at least one longitudinal slot therebetween. At least one longitudinal air slide is disposed beneath the at least one slot, and a pulsed vacuum source is connected to a filter cassette which is disposed beneath the floor and laterally to a side of a space defined vertically below the at least one longitudinal slot.

Abstract: A de-aeration device for the separation of solid particles from a gas includes a container with an inlet for the supply of the gas contaminated with particles and an outlet for the purified gas. The cross-section of the container is dimensioned in such a way that the gas velocity does not exceed the carrying velocity of the particles. The gas flow is deflected at the inlet so that it flows mainly sideways in relation to the direction of through-flow of the container. The outlet of the container is provided with a filter cloth.

Abstract: A moisture-collecting device comprises an enclosure (12) with a fluid inlet (15), a fluid outlet (16) and a fluid passage (18) extending between the fluid inlet and the fluid outlet, and a moisture-absorbing body (17) disposed in the fluid passage. The moisture-absorbing body fills substantially the entire flow cross section of the fluid passage (18) and to a substantial degree consists of a material having a high moisture-absorbing capability. The moisture-absorbing body defines, or has formed within it, at least one fluid passageway (19) which is in fluid flow communication with the fluid inlet (15) and the fluid outlet (16) and is substantially free of moisture-absorbing material. When the moisture-absorbing body (17) absorbs moisture it swells, and when it has swelled to a predetermined extent it may actuate a control or operating member, such as a valve.

Abstract: An improved lint handling system for a household laundry dryer is provided. The lint handling system for a laundry dryer has a dryer drum with an exit grill. The lint handling system provides a blower speed increaser to increase airflow in the dryer. The lint handling system also has a lint container and a foreign objects trap connected to the exit grill. Also a lint separator to separate lint from the airflow in the dryer is provided. The lint separator has an input connected to the foreign objects trap and an output connected to the lint container. A laundry dryer having a lint handling system as described is also provided. The lint handling system of the invention also provides a scroll-shaped centrifugal blower housing having a cylindrical base to accept airflow tangentially, a cutoff and a throat region to produce high velocity airflow. The blower housing further has a Helmholtz resonator located in the throat to reduce the acoustic emissions at a blade passage frequency.

Abstract: A pressure side integrated air filter assembly for a turbocharged engine includes an air filter carrier which is designed and arranged to receive an air filter element and which is adapted to mount to the intake manifold of the turbocharged engine. The air filter carrier which receives an air filtering element is disposed within the intake manifold and the intake manifold cover serves as the air filter cover. A peripheral flange on the air filter carrier is used to support the air filter assembly by being clamped between the intake manifold cover and the intake manifold. This peripheral flange substitutes for the intake manifold gasket. The air filter carrier and the air filter element each have a trapezoidal shape in cross section as a way to conserve space within the intake manifold.

Abstract: A method and apparatus useful for collecting the liquid solvents and paint expelled from an air brush while the air brush is being cleaned. The method and apparatus include direct impact of the expelled fluid against a baffle wall followed by direction reversal and expansion of the flowing fluid to collect the liquid portion in a chamber while discharging the gas and any solid particles entrained therein through a filter element.

Abstract: A liquid-vapor separator for two-phase fluids in general and specifically a steam-water separator in a steam drum of a steam generator includes axial or radial spinner blades to create a centrifugal motion which causes liquid to be forced outward against the outer wall and the vapor to be concentrated in the center. Conical extraction skimmers systematically extract and discharge the liquid outwardly and downwardly through the side walls such that it impinges on an optional discharge screen surrounding the skimmers. The vapor flows out the top through a central opening and enters a secondary separator packed with crimped wire mesh encased in a perforated enclosure. The conical extraction skimmers include an outwardly protruding rim portion which forms an enlarged annular chamber between the rim and the underlying conical extraction skimmer. This forms a converging-diverging flow path out between skimmer sections and an outwardly extending ring forms a tortuous path.

Abstract: Oil separator assembly for removing and collecting oil entrained in a gas includes a vessel having a cavity with a reservoir formed therein; an inlet pipe extending into the vessel; an inlet diffuser securely attached to the inlet pipe for initially separating the entrained oil from the refrigerant gas; and independent oil and gas outlet ports extending from the vessel for emitting the separated oil and ejecting the substantially oil-free refrigerant gas, respectively. The inlet diffuser includes a conical-shaped hollow member having an open base, a closed end, and a converging side wall extending from the open base to the closed end. Refrigerant gas and entrained oil, received through the open base, gradually impacts on the inner surface of the side wall in a manner sufficient to promote coalescence of the oil. The coalesced oil is directed across the inner surface of the side wall transversely away from the refrigerant gas.

Abstract: A dust removing apparatus for an intake air cleaner in which the air cleaner is disposed in the vicinity of a passage of a high speed air flow and an opening in a wall of the air passage confronting high speed air flow within the passage. As a result dust is removed from the high speed air flow.

Abstract: A filter, separator and seal arrangement is disclosed for a wet and dry hand held vacuum cleaner. A cup-shaped filter is provided which is elongated to provide a large area for enhancing sustained air performance of the cleaner with the filter being disposed within a liquid separator so as to be generally coextensive therewith. A connection arrangement is also provided between the filter and separator so as to provide an air tight and liquid tight connection therebetween but which is also easily separable to facilitate cleaning of the two devices.

Abstract: A method of providing clean air to a workpiece comprises positioning the workpiece adjacent to a first opening in a conduit. The conduit includes a central segment and a peripheral segment having, respectively, the first opening and a second opening disposed at opposite ends of the conduit. The peripheral segment surrounds the central segment such that the first opening is substantially coplanar with the second opening. A laminar flow of air is created through the conduit in a direction away from the second opening and toward the first opening. The air flow is filtered through a HEPA filter supported within the conduit.

Abstract: A personal dust spectrometer for aerodynamically classifying and collecting sub-fractions of inspirable dust, has an entry which has an entry efficiency approximating that of the human head during inhalation, and a cascade impactor comprising a stack of stages each having a flat element and a peripheral wall and gas exit holes. A connector enables a gas sampling pump to be attached to draw air through the entry and through the cascade impactor. A filter is desirably used to collect the smallest dust particles. All the dust entering the device is collected and is measurable.

Abstract: The system for generating braking pressure, consisting of a pneumatic assistance servomotor (2) mounted so as to overhang on a master cylinder (1) which it actuates by a tubular pullrod component (14) in which extends the control pushrod (11) of the distribution valve (10), incorporates a pre-assembled unitary valve assembly (10) screwed to the end of the tubular pullrod component (14) so as to connect the latter to the movable piston wall (6) of the servomotor, the valve (10) being linked by a cylindrical flexible sealing component (50) to a central annular zone (19) of the front wall (4) of the servomotor casing which is closed by a labyrinth filtering structure (80) with draining means (86).

Abstract: A rotary air compressor of oil sealed type includes a stator containing a rotor, oil injectors arranged to inject oil into the interior of the stator, an oil sump connected by a first oil pathway to the oil injectors and an oil cooler situated in the first oil pathway. A thermally responsive valve situated in the first oil pathway is arranged to open only when the temperature of the oil has reached a predetermined value whereby no oil is injected through the oil injectors before the temperature of the oil has reached the said predetermined value.

Abstract: A motorized vehicular vacuum street sweeper (2) includes a hopper (14), a vacuum system (12) for suctioning debris and depositing same in the hopper (14), and a multi-stage filtration system (16) including a coarse filter above the hopper (14) and two different material filters (54 and 56) in an exhaust section (30) of the vacuum system (12) downstream and external of the hopper (14) to filter dust and the like and afford a cleaner exhaust to the atmosphere.

Abstract: An atmosphere control system for the cab of a self-propelled combine has its principal components arranged for series flow and mounted compactly on a rear portion of the floor of the cab. A pressurizing blower injects fresh air into an upstream filter chamber through a translational inertial precleaner which discharges any removed dust along with bleed air vertically downwards through the floor of the cab. A filter further cleans fresh air as it continues into the system, to pass through a heat exchanger and into circulation by a circulation blower and suitable ducting. Both precleaner and fresh air filter are accessible through a door in an outside wall of the cab.

Abstract: This application discloses an improved throughput blade design for louvered separators having a plurality of louvers (134). Each louver has a tab (144) extending perpendicularly from a central axis or plane (140). The optimum tap spacing S can be calculated with the knowledge of the blade angle B or the blade gap G. The tap height H is calculated as a function of the blade gap G. The tab (144) is designed to improve the efficiency the louver separator while making manufacture of the entire louvered array possible in one or two steps rather than necessitating manufacturer of each louver for later assembly.

Abstract: A two-stage air cleaner with side-by-side elements. The cleaner has a first element (30), a second element (32) which itself may have a safety element (35). The first element (30) is preferably a conical inertial separator having a scavenge outlet (38). The second element preferably employs a pleated filter (50) which receives cleaned air (indicated by arrows 104) which passes through the filter (as indicated by arrows 106) to the outlet tube (56). In an alternative embodiment, pleated filter (50a) may have a reverse taper corresponding to that of the conical inertial precleaner (30a), thereby reducing the size of the housing.

Abstract: A self cleaning industrial dust filter includes a housing divided by a tube sheet into an upper clean air chamber and a lower dirty air chamber. Pleated fiber cartridge type filters are supported in the lower chamber from the tube sheet and the interior of the filters communicate with the clean air chamber through openings in the tube sheet, one for each filter. The lower chamber is formed as a plurality of panel venturis which converge downwardly from the lower end of the filters to a narrow throat. A clean air outlet connects with the upper chamber and a dirty air inlet with the lower. Downwardly directed jet nozzles are positioned in each venturi to induce reverse flow through the associated filters, remove accumulated particulates and conduct them to a take out at the base of the lower chamber.

Abstract: An air filter assembly (10) is disclosed which includes a dirty air chamber (22) having an air inlet (20) and a plurality of clean air outlets (34). In fluid communication with each air outlet (34) in the dirty air chamber (22) is a pleated media filter element (32) positioned so as to be suspended in a cantilever manner at an acute angle with respect to a horizontal plane. A distribution space (33) for reducing entering air velocities is created by the inclined uppermost filter elements (32) and the horizontal plane of the top surface panel (16). The lowermost portion (25) of the dirty air chamber (22) provides a collection area for particulate matter removed from the filter elements. The lowermost portion (25) includes a sloping surface (24) constructed of a material which flexes in response to pressure increases within the chamber (22).

Abstract: A filter assembly for use especially with air conditioning and heating ducts, comprising first and second rectangular frames, the latter frame being detachably positioned in the first one, and a filter element sandwiched between the rear end of the second frame and a flange seat on the first frame. Interiorly separable snap lock elements on the first and second frames serve to retain the latter frame and filter element in position in the first frame. The second frame is formed into a louver or grill and includes a plurality of horizontally-spaced and inclined slats, the spacing being so as to permit ample flow of air through the assembly, the slats serving as a handle for the insertion and withdrawal of the second frame relative to the first one.

Abstract: A filter for removing airborne grease has spaced front and rear walls each with a series of transverse louvers extending into the interior of the filter and opening downwardly. A filter media of expanded metal sheets is sandwiched between the front and rear walls.

Abstract: A combined sound damper and oil trap for compressed air apparatus comprising an oil trap having a hose or tube (5) which is directly connected to the compressed air apparatus and which at the outer end thereof encloses a scraper sleeve (7), whereby a radial space is formed between the scraper sleeve (7) and the hose or tube. The hose or tube is connected to an oil collector housing (1) whereas the scraper sleeve (7) is connected to a pressure chamber (2) which in turn directly communicates with a filter housing (3) containing a sound damper. The said sound damper comprises both a diffusor plate (11) provided between the pressure chamber and the filter housing (3) and a filter (12) which is mounted at the outlet end of the filter housing. The diffusor plate (11) provides a damping of low frequency noise and a substantially even distribution of the outlet air over the entire diffusor plate, and the filter (12) provides both a separation of oil mist from the outlet air and a damping of high frequency noise.

Abstract: An improved method and apparatus for removing solid contaminants from the air comprising a generally stationary horizontally disposed cylindrical housing having a pair of spaced opposed vertical end walls and a peripherally disposed filter medium wall extending therebetween to define a filter compartment, a reduced air inlet opening in one end wall for introducing air to be filtered into the compartment and initially directing the same in a path of travel to the other end wall for deflection and recirculation through the compartment in a generally circular path before passage through the cylindrical filter medium wall for filtration thereby, and a plurality of contaminant discharge openings spaced about the lower peripheral portion of the other end wall for directly removing contaminants in the air from the compartment before their entrapment on the filter medium of the unit.

Abstract: An appliance for attachment to a compressed air line leading from an air compressor, the appliance including a container containing an interchangeable waste dryer made of remnant fabrics and through which the air passes so that moisture from the air is absorbed thereby, and the appliance, in another model thereof, additionally including a water cooled tubes so to cool the passing air and condense the moisture therefrom.

Abstract: Pollutant particles, particularly lead particles, are removed from engine exhaust gases by passing the gases successively through three aligned chambers, of which the first and third contain wire mesh or expanded metal packings, while the second chamber is divided by a deflecting baffle which deflects the partially cleaned exhaust gases downwards to deposit particles in the bottom of the second chamber.

Abstract: The disclosure concerns a separator for removing broken engine parts and other debris from the hot gases passing fro the exhaust manifold of an engine to the inlet of an associated turbocharger. The separator includes an annular separation chamber in which the gases are swirled by stationary vanes to effect centrifugal separation of the debris, and a cylindrical screen which filters the gases as they leave the separation chamber. The screen is mounted in cantilever fashion within the separator casing and carries, at its free end, the vanes and a deflector which directs inlet flow radially outward to the separation chamber. The vanes are freely mounted in slots formed in the screen, where they are held captive by the slot margins and the deflector, and the tips of the vanes are spaced radially from the surrounding casing of the separator.

Abstract: An accessory for use in a vacuum cleaner or a vacuum-cleaning conduit for collecting and holding liquid sucked up by the vacuum cleaner, comprising: a container having a reservoir for holding the liquid, a removable cover for said container and extending substantially horizontally thereover, means for dividing said container into said reservoir and a chamber above said reservoir and having a substantially horizontally extending plate, an inlet fitting connected to said cover for connecting the interior of sand reservoir to a hose leading to the suction nozzle of the vacuum cleaner or a vacuum cleaning conduit, said inlet fitting including a pipe extending vertically and having a lower end portion extending into said reservoir, an outlet fitting in said cover for connection to a hose leading to the body of the vacuum cleaner or vacuum-cleaning conduit and communicating with said chamber, at least one passage in said plate between said chamber and said reservoir, and a float-controlled valve including a float v

Abstract: To increase the degree of separation of liquid droplets from a stream of gas by means of a separator consisting of a packet of wire gauze arranged in a pipe, the packet is subdivided along its height by discharge channels arranged transverse to the direction of flow.