Abstract: A filter system for intake air of an internal combustion engine has a housing with a cover. A filter element is arranged in the housing. An inlet feeds a medium to be filtered into the housing and an outlet discharges the medium from the housing. The filter element has a filter body with first end face and opposite second end face. The filter element has an open first end plate at the first end face and a second end plate at the second end face. A support tube is arranged concentrically about a longitudinal axis in the housing and attached with a first end to the housing. The support tube is arranged in the interior of the filter element and radially supports the filter body. The second end plate rests on the second end of the support tube and on an inner cover contour of the cover with anti-rotation action.

Abstract: A cyclone comprising: an upper cylindrical portion which opens into the wider end of a lower frusto-conical portion, with the longitudinal axes of said upper and lower portions aligned and substantially vertical; a primary air inlet into the cyclone arranged such that the inlet air is substantially tangential to the circumference of the cyclone; an exhaust outlet at or adjacent the top of the cylindrical portion; a control valve associated with said exhaust outlet and capable of partially or completely shutting off said exhaust outlet; a secondary air inlet associated with the narrow end of the frusto-conical portion and provided with an airflow stabilizing device which is adapted to admit a stream of air substantially along or spirally around the longitudinal axis of the cyclone; means for removing processed product from the cyclone; means for moving said airflow stabilizing device into and out of the narrow end of the frusto-conical portion during product processing and/or between product processing.

Abstract: The invention hereby disclosed is a vertical filtering and separating suction machine of chips, steam and smoke for machining center, lathe machine or other machines, which operates by sudden changes of sucked air, thus generating hits which separate heavy particles, whose suction pipe extends almost up to the bottom of the rotor, which only uses filters at the end of the process of air purification, whose rotor has outer paddles modified in order to improve suction power and to cause more hits of air flow, and which includes an air pressure alarm showing the filter is saturated.

Abstract: A method of designing a gas-solid separator that has an inner cylinder having a closed lower end and an opened upper end, and extending in a vertical direction; an outer cylinder that coaxially covers the inner cylinder from the outside and has a gas vent port formed on the upper end side of the inner cylinder and communicating with an exterior; and a plurality of axially extending long holes formed a side surface on the lower end side of the inner cylinder in a circumferential direction, one of long side edge parts of each of the long holes being provided with a guide blade that protrudes outward and is inclined circumferentially so as to cover the long hole.

Abstract: Several alternate improvements of a vacuum cleaner are provided. In one aspect, the vacuum cleaner utilizes interchangeable components. In another aspect, the vacuum cleaner comprises a chamber having a top, and a first cleaning stage and suction motor are provided on the top. In another aspect, the vacuum cleaner utilizes a reconfigurable divider plate.

Abstract: A gas-solid separator has: an inner cylinder 10 having a closed lower end 11 and an opened upper end 1, and extending in a vertical direction; and an outer cylinder 2 that coaxially covers the inner cylinder 10 from the outside and has a gas vent port 6 formed on the upper end side and communicating with an exterior, wherein a plurality of axially extending long holes 4 are formed on a side surface on the lower end 11 side of the inner cylinder 10 in a circumferential direction, one of long side edge parts of each of the long holes 4 is provided with a guide blade 5 that protrudes outward and is inclined circumferentially so as to cover the long hole 4, and in a section of the outer cylinder 2 that surrounds the plurality of long holes 4 of the inner cylinder 10, an inner diameter D1 of a lower part is larger than an inner diameter D2 of an upper part.

Abstract: A method for operating a gas-solid separator that has: an inner cylinder 10 having a closed lower end 11 and an opened upper end 1, and extending in a vertical direction; an outer cylinder 2 that coaxially covers the inner cylinder 10 from the outside and has a gas vent port 6 formed on the upper end side of the inner cylinder and communicating with an exterior; and a plurality of axially extending long holes 4 having a length L[m] and formed on a side surface on the lower end 11 side of the inner cylinder 10 in a circumferential direction, one of long side edge parts of each of the long holes being provided with a guide blade 5 that protrudes outward and is inclined circumferentially so as to cover the long hole 4, wherein the length L of each long hole 4 is defined such as to satisfy an expression of non-dimensional Stokes number St=(?pdp2/(18?))·U/L?0.

Abstract: A gas-solid separator has: an inner cylinder 10 having a closed lower end 11 and an opened upper end 1, and extending in a vertical direction; and an outer cylinder 2 that coaxially covers the inner cylinder 10 from the outside and has a gas vent port 6 formed on the upper end side of the inner cylinder and communicating with an exterior, wherein a plurality of axially extending long holes 4 are formed on a side surface on the lower end 11 side of the inner cylinder 10 in a circumferential direction, one of long side edge parts of each of the long holes 4 is provided with a guide blade 5 that protrudes outward and is inclined circumferentially so as to cover the long hole 4, and a part between the long holes 4 of the inner cylinder 10 is concaved in a center direction of the inner cylinder 10.

Abstract: The present invention provides systems and methods for organic particulate filtration. An organic particulate filtration system is implemented within a fossil fuel power plant combustion system. The filtration system comprises a gas flow, in which gas are entrained particulates. The filtration system has a collection hopper located proximate a precipitator collection area. Within the collection hopper, a particulate baffle is provided in a downward-angled orientation. The particulate baffle is enabled to trap particulate, such as organic particulate, in the collection hopper, thereby preventing particulate re-entrainment in the gas flow.

Abstract: A mixing chamber receives pyrophoric gas for mixing with oxygen prior to discharge into an upright housing of the apparatus. Tubular members within the housing define annular passageways through which the mixed gas and oxygen flow in a serpentine manner with reversal of flow direction promoting the precipitation of matter. A receptacle is removably attached to the housing for collection of matter with mounting means enabling periodic receptacle removal for cleaning. An enclosure about a housing end includes a door for access to the receptacle. Provision is made for ventilating of the enclosure to an exhaust conduit during door opening to prevent escape of gas and particulate to the atmosphere. A modified form of apparatus includes a filter and chemical bed for further treatment of the flow.

Abstract: An apparatus defines a chamber into which hazardous gas is discharged. Disposed about the hazardous gas discharge flow are nozzles from which oxygen flows for mixing with the hazardous gas. A structure within the chamber receives the hazardous gas and oxygen and defines an area in which a reaction occurs therebetween. The structure includes perforate components which deter the formation of gas pockets and diminish the risk of explosion. The hazardous gas mixed with oxygen is subsequently directed toward baffles on which may be deposited matter precipitating from the combined oxygen and hazardous gas. Prior to discharge from the apparatus, the gas and oxygen mixture may be subjected to a filter for further removal of matter. Both hazardous gas and oxygen flows are induced through the apparatus by a source of reduced pressure.

Abstract: An apparatus includes a housing into which a hazardous gas is introduced. A sleeve in the housing includes a perforate segment into which the gas is discharged along with flows of oxygen delivered from sleeve mounted nozzles. Particles forming in a sleeve defined mixing zone gravitate toward a first collection site within the housing. Within the housing are radially spaced tubular members through which the gas and oxygen mixture flows in a serpentine path with provision for the collection of particles precipitating from the flow adjacent one end of the housing. Metallic fibers render any gas collection in the housing inert. Provision is made for delivering, in the alternative, a pressurized air flow to the sleeve for oxidizing the hazardous gas flow utilizing ambient air. A diffuser plate imparts current to the ambient air discharged into the sleeve.

Abstract: This invention is drawn to a filter assembly for use in conventional floor registers in HVAC systems. The assembly includes a diamond shaped center rod which splits the air flowing through the filter assembly and supports a pair of hinged doors which open during active periods of the HVAC cycle and close during the dormant period of the HVAC cycle. A sponge-like, tacky adhesive filter is positioned on the top surface of each door to filter dust or dirt particles that drift into the register during the dormant period of the HVAC cycle.

Abstract: A vacuum cleaner with a removable collection module. The module has a combined collection assembly and filter element. The collection assembly has a one-piece frame and a cover attached to an open rear end of the frame. The filter element is permanently attached to the cover on an interior side. The cover has ribs that space the filter element from a rear side of the cover and form an air flow space between the filter element and the cover. The cover is mounted on a flange of the frame with a frictional air-tight connection.

Abstract: A vacuum cleaner with a removable collection module. The module has a combined collection assembly and filter element. The collection assembly has a one-piece frame and a cover attached to an open rear end of the frame. The filter element is permanently attached to the cover on an interior side. The cover has ribs that space the filter element from a rear side of the cover and form an air flow space between the filter element and the cover. The cover is mounted on a flange of the frame with a frictional airtight connection.

Abstract: A housing receives ambient air through an inlet located so as to direct the airflow against blades of a rotor which disperses the airflow. A gas inlet conduit discharges hazardous gas into a chamber of the housing. The dispersed airflow acts on the hazardous gas entering the chamber to disperse and mix with the gas. The mixed air and hazardous gas flow impinges against a wall surface of the housing prior to discharge from the housing via an outlet conduit. A source such as the intake side of a blower induces the flow of air and hazardous gas through the housing and the outlet conduit. The rotor is located near an air inlet of the housing for rotor operation by airflow drawn into the housing. A flow sensor and damper control system are provided. Baffle assemblies are removably installed in the housing and include apertured plates which collect particles deposited by the mixed air and gas flow. Bypasses are provided to ensure an uninterrupted mixed air and gas flow past the baffle plates.

Abstract: An electrostatic precipitator wherein a gaseous carrier medium is caused to pass through one or more electrostatic filters to be relieved of the major percentage of impurities. The thus purified carrier medium is caused to flow through a tapering funnel-shaped section of the outlet wherein the lower layer of the flow is caused to enter an elongated horizontal slit-shaped aperture leading to a chamber which narrows in the direction of flow of carrier medium therein and discharges into a first conduit for evacuation of the lower layer. The upper layer enters a polygonal or cylindrical second conduit at a level above an adjustable flat or otherwise configurated partition which extends into the funnel-shaped section at the intake end of the second conduit and whose inclination can be changed to vary the size of the aperture leading to the chamber.

Abstract: An arrangement for fine dust separation in a fluidized bed reactor with a clone and dust return conduit. A venturi tube extends from the solids discharge of the cyclone intermediate the cyclone and the dust return conduit, and a gas injector is located at the inlet of the venturi tube. The fine dust which leaves the fluidized bed is separated from the exhaust gas in the cyclone, and the separated dust is conducted from the cyclone, through the venturi tube and the dust return conduit, and into the lower region of the fluidized bed. Gas is conducted through the gas injector to help force the separated dust through the return conduit and into the fluidized bed.

Abstract: A particulate material collecting apparatus including a cylindrical member defining therein a spiral flow chamber for forming a spiral flow of gas therein, an inlet duct and an outlet duct connected to the cylindrical member tangentially to the inner circumferential surface thereof, and a hollow inverted pyramidical member secured to the lower portion of the cylindrical member. A spiral flow guide plate having a convex surface curved radially outwardly of the cylindrical member is interposed between the cylindrical member and the inverted pyramidical member. The spiral flow guide plate is positioned so as to define two openings, one opening being located on the upstream side of the spiral flow of gas and the other opening being located on the downstream side of the spiral flow of gas.

Abstract: A particulate separator of the concurrent flow type includes an inner cylinder mounted concentrically within a tapered conical outer cylinder which is closed at the outer return end. A fan unit is secured within the return end of the outer cylinder to draw air inwardly through the center cylinder, impart a centrifugal force thereon and imparting a tangential spin to the air moving outwardly and then rearwardly and back through the outer conical cylinder. The particulate matter within the fluid moves outwardly to the periphery of the outer cylinder as a result of centrifugal forces. The tangential spin imparted to the air cause the air to move in spiral return path with the conical cylinder establishing a decreasing cross section.

Abstract: Pollutant emissions produced in the manufacture of asphaltic roofing are controlled by the use of electrified bed filters. Filter bed granules coated with pollutants are removed from the beds periodically and are used in the manufacture of the roofing. A prefilter is employed to remove varnishing pollutant components in the supermicron size range to prevent fouling of an electrical charger.

Abstract: A fluid separating apparatus in which an inlet is disposed in the upper portion of a substantially vertically oriented cylindrical housing for receiving a mixture of liquid and vapor. The mixture is separated in the housing by the application of centrifugal forces to the mixture and the liquid exits from the lower portion of the housing and the vapor rises and exits from the upper portion of the housing.