Abstract: A particulate trap filter is provided with an electric heater for burning out particulates accumulated therein. The electric heater is provided as a wiring pattern such that a higher power efficiency is provided for the portion corresponding to the portion of the filter located away from the center of the filter and a relatively lower power efficiency is provided for the portion corresponding to the central portion of the filter.

Abstract: An exhaust gas system with a particulate filter and a regenerating burner, whose hot gas outlet is provided in the vicinity of a closed end of the filter in the form of a plurality of openings, which are arranged in one or more planes parallel to the entry surface of the particulate filter. Due to the splitting up of the hot gas flow in the burner into a plurality of smaller flows of hot gas, the mixing with the exhaust gas is so improved that directly downstream from the flame tube of the burner there is a substantially complete equalization of temperature whereby the particulate filter may be positioned very close to the burner.

Abstract: A particle filter that can be burned free for cleaning the exhaust gas of internal combustion engines. Filter cartridges (11) are provided arranged in a housing (1) with an external heat supply (10). The filter cartridges are lined with filter material (13) differently, corresponding to the flow profile of the exhaust gas in the housing.

Abstract: A steam condensate removal device, typically for return of steam condensate to a boiler, is provided. A receptacle attached to the steam condensate removal line contains a gasket-separator and a threaded condensate restriction nozzle therein and a cap attached thereto to form a chamber housing the gasket-separator and nozzle. Condensate passes from the steam line, through the nozzle into the chamber and then on to the boiler return line. The device incorporates within it features that prevent seizing of the nozzle or the cap.

Abstract: The present invention is an apparatus utilizing a mesh pad, located on the front of a mist extractor through which water may drain and air may pass. Water flows at a sufficient rate through said mesh pad to drain the mist extractor, and air flowing through said mesh pad is filtered of moisture and does not entrain moisture from the mist extractor.

Abstract: A method of removing solid particulate matter from the exhaust of a diesel engine, which comprises passing the engine's exhaust flow through at least a part of filter means to trap solid particulate matter contained initially in the exhaust, thereby to remove said matter from said exhaust flow, interrupting the exhaust flow through at least said part of the filter means, at a time when the preceding period of exhaust flow therethrough is of sufficiently brief duration that the trapped particulate matter has not become resistant to subsequent combustion in the engine, during said interruption backflushing at least said part of the filter means thereby to dislodge from the filter means, and entrain, said solid particulate matter for the purpose of removing it from the filter means, and transporting said dislodged solid particulate matter to the intake of said engine so that said matter can be combusted in the engine; and apparatus for accomplishing same.

Abstract: A flow constriction device for the complete removal of condensate from steam and compressed air lines and steam-using equipment. This device incorporates the insertion of a uniquely designed convergent/divergent nozzle into a body piece. The body piece is installed within the piping system using existing means. The nozzle is protected from blockage with a screen secured at the inlet of the body piece. The dimensions of the convergent/divergent flow channel are determined for each application taking into account factors of pressure differential and the flow rate of the condensate to be removed. The design of the assembly allows for easy interchanging of the nozzle piece to meet changes in system conditions. The body of the device can be reused, and the nozzle piece can be changed without disturbing the in-line screen element.

Abstract: A constriction device for a steam trap of a radiator, which may replace prior art thermostatic elements and valves in the steam trap body. The device includes a nozzle body that replaces the valve, and a venturi-like constantly open passage extends through the body. The passage has a turbulence producing inlet and a turbulence reducing outlet and a connecting throat. A filter screen is carried by the nozzle body to prevent particles from being carried into the passage.

Abstract: An in-line vapor trap for removing water and/or oil vapor from a compressed air line which includes a manifold having spaced coaxial inlet and outlet openings, a hollow base suspended from the manifold, and replaceable cartridges connecting the manifold inlet to the hollow base and connecting the hollow base to the manifold outlet. A honeycomb structure is disposed in the lower portion of the base within the enclosed volume defined thereby, and cooperates with the base side and bottom walls to define a zone of substantially zero air movement for collection of liquid droplets. A depression in the base bottom wall forms a liquid sump, and a drain opens into the sump for drainage of captured liquid.

Abstract: A housing 3 disposed below the rotor accommodates a driving motor 13, shaft bearings 14, 15 and an oil sump 21. An evacuating line 31 which traverses the wall the housing 3 connects a vacuum pump to the interior 18 of the housing. In order to avoid the loss of oil in the housing or the bearings, the evacuating line 31 and the oil sump 21 are directly connected.

Abstract: Device for the catalytic cleaning of or soot removal from exhaust gases of internal combustion engines, comprising a housing that has two open end zones connected to an exhaust gas line and a flow passage for the exhaust gases between the end zones. Two flow-carrying exhaust gas treating bodies are held in housing one behind another in the direction of flow and at spaced locations from one another. A protective ring, is provided surrounding the space between the two exhaust gas treating bodies on the outside. The protective ring is held in the housing in a form-fit manner in the axial direction by a holding member surrounding it on the outside. An axial clearance is provided between the protective ring and at least of the two exhaust gas treating bodies in the installed state.

Abstract: Method and filter apparatus for the removal of volatilizable particulate material from gas streams containing the same, and the regeneration of the apparatus when removal efficiency has decreased to a selected value. The apparatus includes a filter element fabricated, in the preferred embodiment from silicon carbide whiskers which are capable of converting microwave energy to thermal energy, with the porosity of the filter element being about 25 microns.+-.50%. This filter element, when removal efficiency has decreased to the selected value, is heated uniformly with microwave energy, which couples to the silicon carbide whiskers to convert the microwave energy to thermal energy, for a time sufficient to raise the silicon carbide whisker temperature to a value to volatilize the volatilizable particulate matter for discharge as a gas. Typically, the microwave energy is about 2.45 GHz and 1000 to 3000 watts.

Abstract: A diesel engine exhaust filtration system and method which removes both diesel particulate matter (DPM) and unburned hydrocarbons (UHC) from the exhaust gases. Two filters in parallel are used, each alternating operation as the other regenerates. Each filter is preferred to be constructed in a conventional manner and operates at between 100 to 300 degrees Centigrade. A microprocessor controlled valve system regulates which filter is active and which is regenerating and/or inactive. DPM accumulates at the active filter, with UHC condensing on the DPM. When the active filter becomes clogged, the microprocessor switches it to inactive status, and switches the other filter to active status. Low temperature regeneration is initiated by the microprocessor in which DPM and UHC burn slowly across the entire filter. A recirculation conduit provides for the gases produced by the regeneration to be directed to the air intake of the diesel engine.

Abstract: A particulate trap filter regenerative system for eliminating the fullness of particulates to a particulate trap filter, which collects particulates in the exhaust gas of diesel engines and the like, by burning off the particulates causing the loading with the flame injected from a burner disposed on the upper flow side of the filter, wherein the burner is installed in such a way that the flame injection axis thereof crosses with the extension line of the axis of the particulate trap filter at an angle of 35 to 55 degrees and a flame distributor provided with plural through holes is disposed in such a way that it crosses with the extension line of the axis of the particulate trap filter at an angle which is greater by 10 to 20 degrees than the flame injection angle of the burner. A honeycomb disc body made of ceramics may be installed between the flame distributor and the particulate trap filter.

Abstract: A process for cooling rubber crumb wherein the rubber crumb is presented for cooling to a first stage pneumatic conveyor containing a hot wet first stage air stream. The rubber crumb is cooled in the first stage pneumatic conveyor to a first temperature, whereupon the cooled rubber crumb is separated from the first stage air stream and transferred to a second stage air stream of cool dry air. A second stage pneumatic conveyor transports the rubber crumb in the second stage air stream for additional cooling.

Abstract: A method of and an apparatus for regenerating a diesel filter (1) mounted in the exhaust pipe (3) of a diesel engine (2) wherein for initiating regeneration, the exhaust flow is throttled in the exhaust pipe (3) and/or in an exhaust feedback passage (7) by means of a control unit (10) responsive to setpoint exhaust temperatures measured upstream and downstream of the diesel filter (1) in the exhaust pipe (3), and that the air ratio is set to a value between 1.2 and 1.3 to inhibit regeneration.

Abstract: Prior art trap regeneration devices employ one or two relatively large ceramic trap cores, and a regeneration cycle that burns off the soot in a direction that subjects the porous walls to excessive temperature spikes. Moreover, during regeneration it is normal to bypass dirty exhaust gas directly to the atmosphere. In a first embodiment the subject trap regeneration apparatus includes an electrical heating element and a reverse flow device for each of a plurality of relatively smaller trap cores arranged in a housing, with each reverse flow device constructed for directing a source of air at a controlled rate toward the normal second end of the trap core, heating the air, forcing the heated air through the trap core to the first end, and to controllably burn out particulate matter while the remaining trap cores are functioning to filter the exhaust gases in the normal flow direction.

Abstract: A particulate filter trap regeneration system and control mechanism is disclosed including a downstream vent tube section across which a pressure signal is derived as an analog of the exhaust gas stream velocity flowing through the particulate trap. A novel particulate loading parameter formula is disclosed by which the maximum acceptable pressure drop across a loaded particulate trap may be calculated and related to exhaust gas flow through the trap in order to determine when particulate trap regeneration should commence. In one embodiment, a vent tube equipped with a venturi throat for increasing the accuracy of the pressure signal indicative of exhaust gas stream velocity is disclosed along with representative dimensional parameters.

Abstract: A filter device for trapping particulates for diesel engine exhaust gases including an electrical heating element for regenerating the primary monolithic ceramic filter and a porous cermaic disc pre-filter between the heating element and the primary filter to provide a practical secondary source of heat when particulates on it combust during regeneration.

Abstract: This invention is a filter assembly for preparing gases for an exhaust gas analyzer. A single housing includes at least three filter cavities, an inlet passage and two outlet passages. A coarse filter for filtering particlate matter and for condensate condensation is disposed in the first filter cavity. Condensate from the first cavity drains into the second filter cavity which has disposed therein a fine filter for filtering condensate. An outlet passage is connected to the second filter cavity for withdrawal of the condensate. A fine filter for filtering the exhaust gas is disposable in the third filter cavity which is coupled to the first filter cavity. A second outlet passage connects the third filter cavity to a pump for removal of the gas to be analyzed. The present invention thus provides a multiple filter assembly in a single housing with large fine filter area, minimal void volume, minimal interconnections, and convenient access to the individual filters.

Abstract: An exhaust processor is provided for filtering particulate matter from a combustion product. The exhaust processor includes a housing providing a main passageway having a substrate mounted therein for solid particle filtration. The housing also provides an auxiliary passageway containing a muffler for attenuating noise of combustion product. Combustion product is diverted through the auxiliary passageway after the substrate collects a predetermined amount of solid particles from combustion product to permit regeneration of the substrate by a burner.

Abstract: The exhaust system is suitable for both gasoline and diesel engines, whether used for vehicle propulsion or in permanently installed power transmissions, and controls emission by trapping the solid matter and unburned hydrocarbons that escape with the exhaust gases using serviceable filters accommodated in an elongated hollow outer case (6,61) sealed at either end by removable caps (7) with axial fittings (10) that connect with the front and rear sections of the exhaust pipe (2,4); the space encompassed by the case (6) is split into two chambers (13,14) of different volume by a baffle (15), one side of which supports a housing (16) designed to contain one or more removable filter elements (19), and at the same time, to combine with the inside wall of the case (6) in creating a void (20) that communicates with the smaller chamber (13) by way of openings formed in the baffle (15).

Abstract: A method and apparatus for removing carbon that has been collected in an exhaust gas filter of an internal combustion engine utilizing electrical energy that is introduced via an appropriate electrode arrangement. In order to obtain a more homogeneous current flow and hence a greater (more rapid) burning of carbon without great expenditure, the thermal heating-up of the carbon is effected in exhaust gas conveying chambers and in the filter with the aid of an electrostatic alternating field that is induced between the electrodes and produces radially directed, axially equalized discharge currents, so-called shift currents.

Abstract: An interstage separator for transferring polymeric crumb from a first stage pneumatic conveyor with hot wet air, to a second stage pneumatic conveyor with cool dry air. The interstate separator is characterized by a tangential inlet for the crumb, and an enclosed separating chamber within which the crumb is separated from the first stage air stream. A transition member associated with the separator directs the crumb into a second stage air stream and, then, to a second stage pneumatic conveyor. The interstage separator transfers the rubber crumb from the first stage air stream to the second stage air stream without fouling of the associated equipment.

Abstract: A soot filter has sets of three to five filter tubes disposed in a circle and axially parallel to one another, through which exhaust flows radially from the outside in during operation, composed of refractory ceramic yarn wound spool-wise to form hollow cylinders. To permit an electrical burn-off of the deposited soot with a relatively low expenditure of energy, the clearance A of all adjacent filter tubes 30 from one another amounts to 2 to 4% of the average filter tube diameter D. In each interstice 36 formed by at least three filter tubes 30 an elongated electrical heating element 37 is disposed which can be turned on if the exhaust gas stream is interrupted by shutting down the internal combustion engine or by diverting the exhaust gas stream away from a set of filter tubes.

Abstract: An in-line vapor trap for removing water and/or oil vapor from a compressed air line which includes a manifold having spaced coaxial inlet and outlet openings, a hollow base suspended from the manifold, and replaceable cartridges connecting the manifold inlet to the hollow base and connecting the hollow base to the manifold outlet. A honeycomb structure is disposed in the lower portion of the base within the enclosed volume defined thereby, and cooperates with the base side and bottom walls to define a zone of substantially zero air movement for collection of liquid droplets. A depression in the base bottom wall forms a liquid sump, and a drain opens into the sump for drainage of captured liquid.

Abstract: The invention provides an apparatus and method for removing spent solvent from manufacturing apparatus during operation. The apparatus uses a collection housing having input, exhaust, and output ports with U-shaped output transfer tubing positioned inside the housing and connected on one end to the output port. The output tubing arches upward inside the housing and has a tapered opening positioned near the bottom of the housing. Negative pressure is applied to the exhaust port to move cleaned air out of the housing and solvent laden air into the housing through the input port. Solvent precipitates from the air and collects as a liquid in the housing until the liquid level rises above the arched bottom of the transfer tubing. At this point, the solvent flows through the tubing and the output port, and out of the housing under the influence of gravity at atmospheric pressure.

Abstract: In-line filter device including a first and a second filter disposed parallel with each other on a trap structure such that the filters communicate with a trap chamber defined in the trap structure, so that water and/or oil vapor contained in compressed air flowing through the first filter are coalesced into droplets, which are captured in the trap chamber, while any remaining liquid particles in the air are vaporized during passage through the second filter. The device has a reduced-pressure sump in the bottom portion of the trap structure, and inlet holes through which the captured liquid flows from the trap chamber into the sump such that an upper open end of the tube is positioned in a flow path of the air between the trap chamber and the second filter, for sucking the atmosphere in the sump toward the second filter. A draining device is provided in the bottom portion of the sump, for discharging the liquid out of the sump.

Abstract: An exhaust processor is provided for filtering particulate matter from a combustion product. The exhaust processor includes a partition situated inside a housing to form a first flow passage and a second flow passage in an upstream portion of the housing. A main substrate is mounted in the first flow passage for solid particle filtration. An auxiliary substrate is situated in the second flow passage to filter combustion product passing through the second flow passage during regeneration of the main substrate. A muffler is situated in a downstream portion of the housing and is arranged so that the entire spacial volume of the muffler can be utilized by combustion product passing through either the first or second flow passages.

Abstract: A device for removing solid particles, in particular soot particles, from the exhaust gas of internal combustion engines includes a centrifugal separator or cyclone 11 to separate the untreated gas flow 10 into coaxially removed pure gas flow 23 and a particle-enriched carrier gas flow 24 and includes a combustion device 12 for burning the solid particles carried in the carrier gas flow.

Abstract: Soot particles are separated from diesel exhaust gases and burned by passing them in a direction of flow through a cellular filter open at both ends and comprised of honeycomb-shaped cells, and subjecting the soot particles to an electric or magnetic field before the soot particles are burned. The honeycomb-shaped cells are very wide transversely to the direction of flow and very flat in the direction of flow, and the webs of the honeycomb-shaped cells extending in the direction of flow are very thin.

Abstract: A filter system for removing particulates from exhaust gases of an internal combustion engine, in particular a diesel engine, having at least one filter member formed by filter channels in the configuration of a honeycomb, and made of porous filter material, in which the region of the inlet openings of the filter channels open on the gas intake side, electrical resistance looped heating elements being arranged that are connected via a lead-in and a lead-out to a power supply. A positive positioning of the heating elements and their connections is assured and false contacts, such as short-circuits, are avoided. The resistance heating elements are connectd to a support element connected to the power supply, and the position of the support element can be adjusted three-dimensionally while maintaining a maximum distance of about 30 mm. from the surface of the filter member at its gas intake side.

Abstract: A soot filtering unit in the exhaust gas system of a diesel internal combustion engine that includes at least two parallel soot filters. For regeneration, a regeneration device, having at least one burner and control flap, is provided upstream from the soot filters of the soot filtering unit. The burner(s) provided in the soot filtering unit supplies high temperature gases for the regeneration of the soot filters, and exhaust gas from the exhaust gas pipe is fed thereto as an oxygen carrier for the combustion process. According to a first embodiment, a single burner is provided for all soot filters to be regenerated and the burner does not lie directly in the pipes of the exhaust gas pipe that conveys exhaust gas to the soot filters. Preferably, exhaust gas is supplied to the burner(s) through separate exhaust gas feed pipes but, alternatively, a separate burner can be located directly in each branch of the exhaust pipe upstream of the respective soot filter provided therein.

Abstract: A soot-filtering unit for an exhaust section of a diesel internal combustion engine with a supercharging device. The soot-filtering unit has at least on soot filter in an exhaust line and a regeneration device for the soot filter which includes at least one burner. The configuration of the unit connects an air intake of the burner of the regeneration device to the supercharging device so that the burner is supplied with a portion of the air charge from the supercharging device of the diesel internal combustion engine. In this connection, the configuration can be done in such a way that the burner is supplied exclusively with air from the air charge produced by the supercharging device, or so that the burner is supplied with a mixture of air from the air charge and exhaust gas from the exhaust gas line.

Abstract: The invention therefore relates to a chimney tray hat apparatus for de-entraining droplets of liquid entrained in a stream containing vapor and liquid droplets flowing upwardly through a tray chimney in a vapor/liquid processing device, the chimney tray hat apparatus comprising a top cover or hat having an upper side and an underside which intercepts entrained liquid droplets flowing upwardly through the tray chimney, supports for supporting the chimney tray hat directly above the tray chimney, and a catcher ring and gutter for collecting the liquid impinging on the underside of the top cover and draining the liquid onto the supports and through the tray chimney.

Abstract: A device for preventing condenser water carryover and makeup water spray from going down the overflow drain but permits overflowing condenser water to go down the overflow drain. The device is removably installed into the top of the overflow drain.

Abstract: An apparatus for draining condensate from vapor equipment comprises a cylindrical casing connected in fluid communication with the vapor equipment and defining a flow path for conveying vapor and condensate, an orifice disk disposed in the casing to traverse the flow path and having a plurality of orifices formed therein, and at least one partition disposed in the casing upstream or downstream of the orifice disk with a predetermined spacing therefrom, the partition covering a predetermined portion of the flow path. The structure is applicable to a variety of valves including sluice and ball valves.

Abstract: An exhaust gas purifying apparatus comprising a first and a second casings having expansion chambers, respectively, a third casing arranged between the first and second casings to form a passage therebetween, an inlet pipe introducing the exhaust gas into the first expansion chamber, and an outlet pipe discharging the exhaust gas from the second expansion chamber, whereby a muffler is constituted. The apparatus also comprises a filter arranged in the third casing to trap particulates in the exhaust gas, and a heater arranged adjacent to the filter on the side of the second expansion chamber to burn the particulates deposited on the filter, to regenerate the filter. A flow control unit, comprising a bypass and a valve therein, is arranged such that the exhaust gas normally flows through the filter and the heater, and when the filter is regenerated, at least a part of the exhaust gas flows in reverse through the heater and the filter. This exhaust gas purifying apparatus is built-in to the muffler.

Abstract: This is an oil mist remover used in purifying polluted air containing oil mist generated in a factory or the like, which is capable of lessening the load of the filter, preventing deterioration of the filter, and maintaining a high efficiency if used for a long period, by removing large particles of oil mist and dust contained in the air inhaled from the suction hole before adsorption on the filter. It is composed of main body case, straightening box having a suction hole provided before the main body case, ventilation chamber having exhaust means behind the main body case, and drain chamber having liquid discharge means provided beneath the main body case, in which means for interrupting the straightforward move of the inhaled air is provided inside the suction hole, and the oil mist depositing on this means is dropped, and is collected in the drain chamber to be discharged.

Abstract: A smoke evacuation system for use in surgical procedures in a surgical area is disclosed comprising a portable evacuation hood configured to be disposed proximate a surgical site for receiving gaseous by-products produced during the surgery. The evacuation hood contains a first filter disposed therein for trapping particulate matter. The smoke evacuation system further includes suction source in operative communication with the hood for evacuating the atmosphere from the hood. The suction source as well as a second filter associated therewith are externally disposed from the surgical area. Also disclosed is a portable evacuation hood for use in conjunction with the smoke evacuation system, which comprises a perforated inner wall and a solid outer wall having a chamber therebetween containing the first filter.

Abstract: An oil mister remover used in purifying polluted air containing oil mist generated in a factory or the like, composed of a main body having a suction hole, a ventilation chamber having an exhaust provided in the main body and a member having liquid discharger provided in the main body. The ventilation chamber is formed gradually larger in diameter toward the rotating direction of the fan, the inner edge of a suction guide for guiding the air into to the fan is curved so that the diameter may be larger than the fan and a drum having a rotary filter is provided in the main body. Multiple tiny holes are formed in the drum provided in the main body, and a curvature is formed beneath these tiny holes.

Abstract: Muffler-filter apparatus for reducing both sound and particulates from exhaust gases from an engine. The apparatus includes resonating chambers, flow distribution means and a cellular ceramic core filter module. Filter regeneration mechanism includes a heating element for heating the carbon on the inlet end of the ceramic core to combustion temperature. Particulate ignition resulting in regeneration occurs when combustion air is provided. In alternate embodiments, combustion air first flows through a preheater system. A processor unit with particular logic controls the apparatus. The particular method of regeneration depends on the application in which the muffler-filter is used.

Abstract: A system for the regeneration, by oxidation, of the particulates deposited in a particulate filter trap of an internal cumbustion engine provided for purifying the engine exhaust gas, in which the thickness of the particulates deposited in a given area in the trap is determined relative to a predetermined thickness in excess of which the filter trap will operate inefficiently, and the excess thickness being reduced by regeneration.

Abstract: Meander-shaped exhaust gas ducts pass through a soot burn-off filter made of porous ceramic filter material. Catalytically coated blind ducts branch from each of the outer bends to receive and combust solid combustion residues from the exhaust gases. The residual gases produced in the blind ducts by the oxidation of the combustion residues pass through the filter material into adjacent discharge ducts and are transported from there to the outside of the filter. In this way the exhaust gas ducts remain largely free of solid combustion residues, display no clogging phenomena and therefore keep the exhaust gas backpressure low. This improves the starting behavior of an engine, achieves more favorable warm-up behavior and has a positive influence upon the response behavior of an exhaust gas turbocharger.

Abstract: The apparatus for removing oil from a compressed gas flow includes a separator in which the oil is removed and initially collected as well as a vessel for receiving the collected oil from time-to-time. The vessel is disposed below the separator and communicates therewith by way of connecting lines employing shutoff valves. The vessel serves to collect the oil over time and permits a discharge of oil therefrom while completely separated from the separator.

Abstract: A filter device for trapping particulates for diesel engine exhaust gases includes an electrical heating element to heat the face of the ceramic filter. A porous ceramic disc is place on the side of the heating element opposite the filter. It has been found that the disc keeps the temperature of the heating element more uniform and reduces the time to particulate ignition on the front face of the filter.

Abstract: In an apparatus for treating an exhaust gas from a diesel engine, including a filter unit in an exhaust gas passage for the diesel engine, the filter unit having a honeycomb structure wherein a plurality of cells are divided by cell walls having a filtration function and extend in the same direction as one another, predetermined cells being closed at one end, and the remaining cells being closed at the other end; the improvement comprises: back washing gas flow generating means for generating a gas flow at appropriate intervals so as to pass through the cell walls in the direction opposite to the flow of the exhaust gas flow, and a recollecting unit for particulates, which is provided in the exhaust gas passage at a position upstream to the filter unit.

Abstract: An exhaust gas emission control device comprising a filter provided in the exhaust passage, a heater provided near the filter, first and second passage bypassing the filter and the heater, a single first valve upstream of the filter a single second valve downstream of the filter, and a controller controlling the first and the second valve. When trapping particles, one of or both of the first and second valves closes the first and second passages, and the first and second valves open the exhaust passage, whereby exhaust gas flows through the filter and the heater. On the other hand, when regenerating the filter, the heater is switched ON, the first valve shuts the exhaust passage and the second valve is open to a predetermined degree, so that exhaust gas flows into the first passage, and a part of the exhaust gas flowing via the first passage flows through the heater, the filter, and the second passage.

Abstract: An in-line vapor trap for removing water and/or oil vapor from a compressed air line which includes a manifold having spaced coaxial inlet and outlet openings, a hollow base suspended from the manifold, and replaceable cartridges connecting the manifold inlet to the hollow base and connecting the hollow base to the manifold outlet. A honeycomb structure is disposed in the lower portion of the base within the enclosed volume defined thereby, and cooperates with the base side and bottom walls to define a zone of substantially zero air movement for collection of liquid droplets. A depression in the base bottom wall forms a liquid sump, and a drain opens into the sump for drainage of captured liquid.

Abstract: An "in-line" exhaust processor includes a housing having an inlet for introducing a combustion product from an engine and an outlet for exhausting filtered or otherwise treated combustion product from the housing. A first substrate is situated in a forward or upstream position within the housing to filter combustion product introduced into the housing through the inlet. A second substrate is situated in an adjacent rearward or downstream position within the housing to filter combustion product from at least two sources in the manner explained below. Each substrate includes a cellular structure having opposite inlet and outlet ends and a longitudinal axis. The housing includes a first clam shell portion and a complementary second clam shell portion joined to the first clam shell portion to surround and hold the substrate pair in series.