EXHAUST TREATMENT

An upright generally cylindrical casing forms a gas passageway communicating with the exhaust of a flue for receiving its heated exhaust gases. A burner, axially mounted below the casing in the heated gas stream, heats the gases and refractory material contained by the casing to a combustion temperature....     

Apparatus for purifying an air or gas flow of combustible vaporous or gaseous impurities by passing the air or gas through an adsorption filter and charging the filter to a predetermined level. After the filter is so charged, the air or gas flow is interrupted and the filter is desorbed by passing a...     

A new filter structure is provided for removing particles from the exhaust gas of a large, single piston engine of low RPM, before passing the exhaust gas through a turbine for the purpose of driving a supercharger. The filter is so constructed as to be able to efficiently and reliably perform its filtering...     

An exhaust gas purifier and silencer for a vehicle is disclosed. More particularly, a new device for the purifying exhaust gases employing a conduit and a container for a gas scrubbing liquid is disclosed in which the conduit passes through the container in a loop having a perforated section, one portion...     

An exhaust gas purifier for removing unburned solid particles, sparks, and flames contained in exhaust gas discharged from internal and external combustion engines includes a closed cylindrical member connected to the exhaust port of an internal or external combustion engine and a swirl-generating member...     

A motorcycle spark arrestor comprising a cylindrical housing connectable to the motorcycle exhaust pipe and a screen positioned in the housing so as to intercept all the exhaust gases flowing therethrough, the screen including a planar, rectangular, central section positioned parallel to the longitudinal...     

A catalytic muffler is described with reference to three preferred embodiments. In the first embodiment, a cylindrical entry tube having peripheral holes passes into the interior of the muffler, a second cylindrical tube having peripheral holes offset from the peripheral holes in the entry tube surrounds...     

This invention provides an exhaust gas cleaner comprising apparatus for removing particulate matter from hot exhaust gases, the particulate matter being too fine to be removed from the exhaust gas directly by the filter in the apparatus. The apparatus in accordance with this invention comprises water-exhaust...     

An emission control system for an internal combustion engine cools the exhaust gases sufficiently to condense a substantial portion of the pollutants as a separable liquid or solid phase. The engine exhaust gases are initially cooled and then compressed, again cooled, and work-expanded in an open reversed...     

A muffling device for use on the exhaust of an electric generator engine includes an arrestig chamber, partitioned into two compartments by means of an apertured partition. The first compartment is packed with stainless steel wool to filter out hot particulates from the exhaust of the generator engine....     

This pollution eliminator is comprised of three concentric vertical stacks or chimneys, wherein the outer stack is higher than the inner stack. Exhaust flue gases primarily from a furnace is directed up through the central stack, wherein the hot flue gases rise, as in a conventional chimney. The flue...     

An improved gas scrubber is provided which is particularly suited for cleaning and cooling the exhaust gases from a diesel powered mine vehicle. The invention is embodied in apparatus including an enclosure which is partially filled with a liquid such as water. An inlet for the exhaust gases is located...     

A apparatus for controlling the amount of polluting substances within a fluid such as the exhaust gas of an internal combustion engine, wherein the polluted fluid passes through a corona-producing chamber having spaced conductive members biased by an alternating electrical potential which effect elimination...     

Engine Exhaust Purifier-Muffler comprising a box type body, a cylindrical filter connected to the exhaust pipe of engine is located at rear bottom conner inside the box, a plurality of perforated plate filter elements are stepwisely disposed inside the box to reach toward the top, under the ceiling,...     

Apparatus for attachment to a flue includes a series of chambers for receiving hot products of combustion in the form of gases, cooling the gases and removing noxious impurities through condensation. A blower unit is connected to the series of chambers to add fresh air to the gas flow, hold hot gases...     

An apparatus for purifying exhaust gas having an exhaust gas purifier and a recovering pipe extending from the exhaust gas purifier to a suction device of an internal-combustion engine. The exhaust gas purifier collects soot, etc., in the exhaust gas to purify the exhaust gas under an action of adiabatic...     

A pyroscrubber for combustion of large carbon particles in a stream of waste gas, particularly the waste gas from a coke calcination furnace comprises a generally U-shaped combustion chamber having a first passage arranged parallel with (preferably above) a second passage, so that there is a reversal...     

For purposes of maintaining equipment in enclosures which generate noxious fumes, such as in connection with the handling of sewage in a lift station, there must be adequate venting means to permit entry of workmen into the enclosure without the need of gas masks. In the present integrated system, auxiliary...     

A liquid spray-type stack gas clarifier is adapted to be mounted within existing stacks and supported therein from the top of the stack structure. Means are provided for maintaining gas flow velocity within the stack to compensate for pressure changes resulting from the cooling effect of the liquid spray...     

A separator for removing sulfuric acid from a hot gas stream comprising a substantially cylindrical body having tangentially arranged inlet and outlet conduits to create a vortical flow path of the gas being treated, means being provided for adding cooling air to the gas, the inner surface of the body...     

A stack of filters mounted on a relief vent mounted in a retaining collar, the retaining collar mounted in a hood on a stack pipe attached to an exhaust vent in order to filter the exhaust gases entering the atmosphere.

A smog control device for use particularly on automobiles and comprising an enclosure connectable to the automotive exhaust system and having a passageway therein defined principally by baffles, and a pair of different sized vaned rotors coaxially mounted on a single shaft are disposed in the passageway...     

A regenerative-filter-incinerator device, for use in the exhaust system of an internal combustion engine of the diesel type, includes a drum-like regenerative-heat exchanger-filter assembly rotatably mounted within a housing that is adapted to be installed directly in the exhaust gas stream discharged...     

For use in a muffler of an internal combustion engine improved flame-out apparatus includes first and second L-shaped screens each having a longitudinal section and a transverse section. The transverse sections are axially spaced apart and the space therebetween is occupied by a pair of axially spaced...     

An evaporative emission control system is disclosed having a bed of activated carbon effective to adsorb or collect fuel vapors from both the fuel tank and/or an automotive carburetor; the vapors are desorbed or purged back into the engine upon subsequent and specific degree of engine operation. The...     

Absorption process comprising supplying impure sulfur-containing exhaust gases into a gas supply which conduit defines a vertically-upward path followed by a vertically-downward path. The end of the vertically-downward path leading to a branch has an outlet opening communicating with a water-cooled bath,...     

A pellet casing is formed with concave louvers which cause volume reducing inward flexing of the casing when heated, and simultaneously provide low gas flow resistance therethrough.

A gas and vapor separator includes an axial fan with blade members which carry an absorbing material. A power means, such as an electric motor, rotates the fan, which causes the adulterated fluid to pass through the apparatus. As the fan blades contact the fluid, the desiccant material absorbs the undesirable...     

An apparatus for treating exhaust gases from an internal combustion engine by mixing with other fluids in an enclosed mixing chamber by cyclonic action while subjecting the mixture to a rotating interrupted high voltage direct current electrical field which sweeps through the mixture.

A apparatus for decreasing fuel consumption of and noxious emissions from an internal combustion engine. Exhaust gases from the engine exhaust are passed through a static structure dual 90.degree. band pipe section to a selective sampler, wherein certain species are removed from the exhaust stream and...     

Apparatus for treatment of exhaust gas from internal combustion engines, for use in underground mine workings, comprises an exhaust pipe with a water jacket, and a conditioner chamber retaining a bath of water through which the exhaust gas flows in passing through the inlet to the outlet of the chamber,...     

An internal combustion engine exhaust gas filtering device in which an elongated high temperature resistant filter cartridge, gas permeable from end to end and radially, is received within a sheet metal casing having gas inlet and gas outlet ends with the filter cartridge spaced from the gas inlet end...     

A smoke stack which receives at the lower end thereof dirty hot waste gases and receives adjacent the upper and thereof a constant flow of raw cold juice, the juice and the gases flowing in contra directions. A dual purpose is achieved since the cold juice flowing downwardly against the upward flow of...     

A compact but highly integrated pollution control system for use with a coal or lignite burning electrical power generating plant utilizes a stabilized continuously monitored and controlled bath through which is passed gaseous effluent containing particulate matter. In one form this may comprise a chimney...     

An anti-pollution device includes a cylindrical chamber attached in line with the exhaust of an automotive vehicle, which in conjunction with the velocity and heat of emitted exhaust gases further heats and burns emitted gases exiting the tail pipe into relatively harmless non-polluted vapors. The chamber...     

An air pollution control device for use with automobile engines for filtering crankcase and exhaust emissions. The device comprises a filtering chamber containing fluid coated filtering material having an inlet of a first diameter, an outlet of a second, larger diameter to cause a decrease in internal...     

A system for treating exhaust gases from an internal combustion engine wherein solid particles contained in the exhaust gas stream are retained in a filter bed, and are then controllably combusted in a manner to avoid thermal damage to the particle retaining bed.

An exhaust gas purifying device for removing harmful solid particles, sparks and flames contained in exhaust gas discharged from an internal combustion engine comprises a cylindrical body member connected to a muffler in an exhaust gas system of the engine. The cylindrical body member is separated into...     

An exhaust gas pollution control system (10) for purification of exhaust gases passing from a combustion chamber. The control system (10) includes a housing element (14) which extends in a longitudinal direction (12). The housing element (14) encompasses a plurality of exhaust gas purification elements...     

A ceramic sponge made from plastic is described. Because of the ease of cutting the plastic in various shapes before converting to ceramic several unique applications are possible. In case of a column packing better contact between liquid and gas is made. For an auto catalytic converter better contact...     

A serviceable exhaust particulate trap for diesel engines comprising, in a preferred embodiment, a concentric dual bath filter including a tubular outer filter element of high surface area, such as pleated paper or the like, acting as a primary filter, and a tubular mesh-packed secondary filter in a...     

Related arrangements of diesel exhaust particulate traps are disclosed wherein particulate filter elements are formed from porous ceramic monoliths made of high temperature ceramic and containing passage defining micronic pores intercepted by high temperature ceramic fibers retained in the ceramic substrate...     

An exhaust gas cleaning system adapted to clean smoke or other waste gases through a liquid bath process. This system comprises a generally cubicle enclosure divided internally into three separate compartments. The first compartment includes means for inputting both a cleaning solution, preferably water,...     

An apparatus for removing non-gaseous pollutants from exhaust and flue gases produced by the burning of a fuel in which the exhaust or flue gases are intervally passed through one of a first filter means and a second filter means, a combustion supporting gas is supplied to the other of the first filter...     

An automobile dirty smoke eliminator which mainly consists of two oval tin plates externally, and upper and lower exhaust pipes, left and right support plates, a blade, a discharge chamber, a discharge pipe, etc. internally. The principle of the present invention mainly consists in making use of the...     

A diesel engine exhaust particulate filter-incinerator comprising an enclosed filter panel having particulate deposition surfaces bordered by electrodes of a high voltage power supply. Periodic incineration is accomplished by the collection on the surfaces of particulates in amounts sufficient to conduct...     

A combined muffler and engine exhaust filter comprises a fixed outer shell and an inner shell. The inner shell is formed from two concentric perforated tubes held in fixed relationship to each other. Granulated or powdered filtering material fills the space between the concentric tubes. The engine exhaust...     

Filter apparatus for filtering combustible particles from an exhaust gas stream, and for periodically rejuvenating the filter bed and catalyst section thereof, by incinerating retained particles. At least a portion of an engine's exhaust gas stream is initially preheated in the catalyst section to raise...     

Apparatus for filtering solid particulates from suspension in fluid streams (especially carbon particulates from exhaust gas of diesel engines) comprising a honeycomb filter with thin porous walls defining cells extending therethrough, with the transverse cross-sectional shapes of the cells forming a...     

Method for rejuvenating a smoke filter which is adapted to remove solid particles from an internal combustion engine exhaust gas stream. The filter includes a bed which forms a multi-passage path along which an exhaust stream flows, and in which carbon particles are retained. A heating element incorporated...     

A device for removing fine carbon particles from exhaust gas emitted by automobile diesel engines or the like thereby to clean the exhaust gas. The device incorporates a filter for collecting fine carbon particles suspended by the exhaust gas. After a predetermined amount of fine carbon particles is...     

Automotive gas purifiers having a tubular core for conveying hot exhaust gases from an entrant opening to an exit opening in a hollow casing which surrounds the core, a plurality of transversely louvered openings in said tubular core and providing a plurality of small passages in said core means for...     

The disclosed ceramic honeycomb filter comprises a ceramic honeycomb structural body with a multiplicity of parallel channels extending therethrough, selected channels being sealed at one ends thereof by sealing material while the remainder of the channels being sealed at opposite ends thereof by said...     

Sulfur dioxide removal efficiency of a horizontal cross-flow gas liquid contactor is increased by decreasing the interfering spray density through employment of a minimum critical spray nozzle spacing which has the effect of reducing spray droplet collision and coalescence.

This patent specification discloses an engine exhaust gas reflux apparatus constructed so as to purify exhaust gas coming out of various engines mounted on vehicles or ships for preferably preventing NO.sub.x from being discharged in the atmosphere. The engine exhaust gas reflux apparatus has a technical...     

Apparatus for filtering combustible particles from an exhaust gas stream, and for periodically rejuvenating the filter bed and catalyst section thereof, by incinerating retained particles. At least a portion of an engine's exhaust gas stream is initially preheated for the purpose of raising the catalyst...     

A filter for purifying exhaust gas of an automobile or the like comprises a rigid ceramic supporting member provided with at least one flow passage and porous ceramic filtering material which is charged within the passage and sintered to the walls so as to be integrally connected to the supporting member....     

The disclosed ceramic honeycomb filter comprises a ceramic honeycomb structural body having a multiplicity of parallel channels extending therethrough, selected channels being sealed at one ends thereof while the remainder of the channels being sealed at opposite ends thereof in such a manner that, as...     

A diesel particulate trap comprising a ceramic monolith filter having inlet channels of decreasing cross-sectional flow area and increasing wall thickness relative to the distance from the inlet end to the outlet end of the filter.

An improved exhaust gas cleaning element comprising a ceramic honeycomb structure body having inner wall surfaces defining plural cells, each cell defining a passageway through which exhaust gas flows, characterized in that a multiplicity of arranged projections are provided over the entire wall surfaces...     

Particle-laden exhaust gases flow through a first stage consisting of a filter cake so the particles of sizes of the order of microns are trapped over the surface of the filter cake and agglomerated or granulated and the agglomerated or granulated particles are entrained by the flow of exhaust gases...     

A catalytic converter comprises a generally elongated housing having gas inlet and outlet at its opposite ends, at least first and second catalyst carriers held in position inside the housing in axially spaced relation, a spacer assembly positioned inside the housing between the first and second catalyst...     

The invention comprises solid particulate filter bodies having so-called "sloppy" plugging configurations in which clusters of mutually adjoining cell ends are plugged at the two end faces of a honeycomb structure such that the clusters at each end face adjoin or partially overlap one another and at...     

A dust collecting filter is provided with a zigzag shaped filter member having small meshes and comparatively large flowing resistance, which is disposed within a casing so that the zigzag shaped cross section thereof extends in the fluid flowing direction. Other filter members having comparatively small...     

A filter for extracting solids and liquids from gaseous combustion exhausts comprises a textile filter element formed of polyacrylonitrile fibers oxidized by careful heat treatment and comprising approximately 61% carbon after treatment. The filter may be woven, knitted or formed as a batting of randomly-oriented...     

Suspended particles in exhaust gases, such as carbon and lead particles in internal combustion engine exhaust gases, are removed by passing the gases through a coarse filter and then through a fine filter. The filters may comprise a ceramic foam material and a catalyst material effective for the conversion...     

An exhaust gas filter is formed of ceramic honeycomb structure and provided with large number of passages defined by porous thin separator walls. The passages are composed of exhaust gas inlet passages and outlet passages which are alternately arranged. The honeycomb structure is further provided with...     

An exhaust gas separator for an internal combustion engine comprises an elongate housing (10) having an inlet (11) and an outlet (12), and annular disks (13) disposed within said housing between said inlet and outlet. Each disk is provided on both side surfaces with at least one open flow channel (14)...     

An exhaust processor having a housing and a diesel particulate trap or filter retained within the housing is provided with a particulate trap seal. The housing includes an inlet for introducing a combustion product into the housing and an outlet for exhausting combustion product from the housing. The...     

In an exhaust gas cleaning apparatus a ceramic heating resistor has a lattice-shaped exhaust gas passage and is formed by extrusion. The ceramic heating resistor is fixed closely to the upper stream side of a filter which catches particulates contained in exhaust gas. This heating resistor is divided...     

An exhaust gas cleaning device provided with a filter member for collecting carbon particulates in exhaust gases discharged from a diesel engine and an electric heater for burning off the particulates collected by the filter member, is disclosed. The filter member is composed of a large number of intersecting...     

An exhaust gas purifying device for use with a diesel engine comprising a filter block disposed in an engine exhaust passage for collecting exhaust gas particulates, and a heater for incinerating the collected exhaust gas particulates. The filter block has parallel channels defined therein and separated...     

A device for filtering stack gases, such as produced by a coal fired electric generating plant, includes a plurality of movable dual filter elements positioned downstream from the point of combustion where dry solid waste including calcium sulphite (CaSO.sub.3) and fly ash are present in the flue gas,...     

A carbon particulates cleaning device for collecting carbon particulates in exhaust gases discharged from an internal combustion engine and burning off the collected carbon particulates, is disclosed. The carbon particulates cleaning device comprises a heat resistant filter member, an electric heater...     

A diesel particulate filter system for treating the exhaust gas of a diesel engine which is small in size and inexpensive. The system includes a particulate filter connected in a gas line from the engine, a burner, including an ignition plug, connected at a point upstream of the particulate filter and...     

An apparatus controls the operation of a regenerative burner having a glow plug operable to ignite and burn a combustible mixture supplied into the burner to burn the exhaust particles collected in a trap located in the exhaust conduit of an internal combustion engine when a trap regeneration requirement...     

A dust collecting filter is provided with a zigzag shaped filter member having small meshes and comparatively large flowing resistance, which is disposed within a casing so that the zigzag shaped cross section thereof extends in the fluid flowing direction. Other filter members having comparatively small...     

An improved exhaust system (24) uses the entire length of the system in which to perform the essential functions of muffling noise and converting unburned hydrocarbons. The improved exhaust system (24) performs these functions with a relatively uniform minimum diameter along its length. The exhaust system...     

An exhaust purification apparatus includes a regenerative burner for repetitively regenerating a trap element located in the exhaust system of an internal combustion engine. The regenerative burner has a combustion chamber adapted to permit flow of exhaust gases from the engine exhaust conduit to the...     

A combustor unit for a woodburning stove comprises a generally T-shaped flue assembly interiorly receiving a combustor having a catalyst to facilitate combustion of exhaust gases. The combustor is pivotal between a combustion position wherein the combustor is positioned across an exhaust passageway to...     

A combustion apparatus for a vehicle for regenerating a filter provided in an exhaust gas passage of an engine by burning and removing fine particles in the exhaust gas comprising an air supply passage for coaxially supplying air along the outer periphery of a fuel injection nozzle, a shut-off valve...     

A multi-chambered air cleaning device is disclosed for removing particulate and other material from air passing through the device, as is a method for removing particulate and other matter from exhaust air. The device includes a front portion for collecting hot exhaust air to be cleaned and vaporizing...     

A moisture inhibitor comprising a housing having a cavity, an entrance port passing through the housing to the cavity of the housing and an exit port passing through the housing to the cavity of the housing and a dividing wall inside the housing in the cavity of the housing coupled to the housing between...     

A honeycomb type porous ceramic structure used for collecting particulates exhausted from an internal combustion engine. The porous ceramic structure comprises porous partition walls forming a multiplicity of passage regions positioned adjacent to one another and extending from the upstream side to the...     

The present invention relates to a process for purifying flue gases developed during the combustion of waste materials and containing solids of various compositions as well as pollutant gases and heavy metals in gaseous form, wherein the primarily solid components are removed from the flue gas in a separating...     

A device for cleaning of gases of electrically conductive particles, like soot and the like, in particular for cleaning of exhaust gases of fossil fuels, like exhaust gases of Diesel motors and the like, with a coagulator admitted by the gases is suggested, whereby for preventing the formation of a short...     

An exhaust system for the internal combustion engine of an automotive vehicle comprises a diecast housing of an aluminum-magnesium-silicon alloy in the form of a boxlike housing part provided with a removable cover affording access to a replaceable rectangular parallelepipedal filter cartridge which...     

In a particle filter device containing porous filter material adapted for the exhaust flow of a diesel engine to filter particles from the exhaust gasses discharged from the engine, a system for the removal of filtered particles collected on the filter material, wherein the removal is effected by oxidation,...     

A ceramic filter for collecting Diesel exhaust particulates has a plurality of interlaced porous internal walls defining a plurality of axial inlet passages extending adjacent to a plurality of axial outlet passages. Each of the internal walls has a three dimensional porous ceramic network structure...     

Apparatus for removing particulate from gases. The apparatus includes an inlet conduit, an outlet conduit, and a cylindrical gas processing chamber positioned between and interconnecting the inlet conduit and outlet conduit. The processing chamber is also connected to a particulate collection chamber...     

An exhaust processor having a particulate trap regeneration system is provided. The exhaust processor includes a housing having an inlet for introducing a combustion product containing a contaminate or other particulate matter from an engine and an outlet for exhausting filtered or otherwise treated...     

An exhaust gas filter for diesel particulates, comprising a row of a plurality of channels of honeycomb structure of porous sintered ceramic fiber composite sheet, the ceramic fiber composite sheet being produced by a paper-forming method from a slurry of alumino-silicate fiber and fire clay. The honeycomb...     

A system is described for use in the stack or flue ducts of a fossil fueled combustion system to eliminate or substantially reduce SO.sub.x and NO.sub.x emissions. The system includes an electrically operated stable glow discharge maintained between separate resistively ballasted pins and opposing plane...     

The apparatus separates exhaust fumes of an internal combustion engine into gas, liquid, and solids and comprises a container having an internal wall for substantially reducing the velocity of fumes fed into the container and allows the liquid and solids to collect in the bottom thereof with the fumes...     

A heating device of the present invention has a heating element of a substantially V-shape and is made of a ceramic material having electric conductivity. Electrode plates are respectively mounted at both ends of the heating element for energizing the heating element. Further, the heating device has...     

A particulate trap system used with a diesel engine has an exhaust conduit ducting exhaust materials through an exhaust cooler, then through a particulate trap, and then to the atmosphere. A by-pass conduit is connected in parallel with the exhaust cooler, and valves are located in the exhaust conduit...     

A catalytic converter has a gas pervious catalyst support member extending across a housing and dividing the housing into an upper chamber and a lower chamber. The catalyst support member has two parallel spaced apart upper and lower foraminous sheets which undulate across the width of the container...     

A porous ceramic monolith for use as a filter (1) for Diesel exhaust gases has inlet bores (61) closed at an outlet end (8) of the filter (1) and outlet bores (62) closed at an inlet end (7) of the filter. The inlet and outlet bores (61 and 62) are interlaced with each other and separated from each other...     

An exhaust gas purification device for installation in the exhaust line of an internal combustion engine of a vehicle, for igniting and vaporizing particulate matter in the exhaust stream. The device includes a canister having a tubular casing with an open end, and an end fitting having a wide mouth...     

An exhaust filter for internal combustion engines enabling the gradual filtration of the exhaust gas to minimize pressure drop through the filter is provided. A second exhaust gas passageway within the filter gradually receives the exhaust gas from the first and primary exhaust gas passageway, and after...