Abstract: A conduit may be used to deliver a pressurized fluid to a cell of a diesel particulate filter to clean the cell. The pressurized fluid may remove particulate matter from the cell. The conduit may be moved within the cell to dislodge particulate matter within the cell. The conduit may be manually or automatically inserted into the cell.

Abstract: A conduit may be used to deliver a pressurized fluid to a cell of a diesel particulate filter to clean the cell. The pressurized fluid may remove particulate matter from the cell. The conduit may be moved within the cell to dislodge particulate matter within the cell. The conduit may be manually or automatically inserted into the cell.

Abstract: A conduit may be used to deliver a pressurized fluid to a cell of a diesel particulate filter to clean the cell. The pressurized fluid may remove particulate matter from the cell. The conduit may be moved within the cell to dislodge particulate matter within the cell. The conduit may be manually or automatically inserted into the cell.

Abstract: The present invention is directed to a filter cleaning device, in particular, diesel particulate filters. In one embodiment, the device includes a source of high pressure fluid and a mechanism transport the fluid to a nozzle or nozzles; an actuator for moving the nozzles; a controller with logic for instructing the actuator to automatically move the nozzle or nozzles across the surface of the filter; a collection device and suction device downstream of the filter; and ducting to transport the fluid between parts of the system. In one embodiment, a second collection device is used downstream of the suction device to provide additional particulate removal. There are three methods proposed for providing high pressure cleaning fluid to the filter face: 1) rotating the filter and rotating the jet about an axis outside of the filter; 2) moving a nozzle in two perpendicular directions (i.e., x-y); and 3) rotating a radial nozzle about the central axis of the filter.

Abstract: An apparatus performs simultaneous data monitoring, logging, and controlling of the state of a system. The apparatus includes at least one system sensor that provides a sensor data signal corresponding to a system characteristic of which the sensor is detecting, a memory that stores data and program instructions, at least one output port that provides an output signal to the system, and a microprocessor that receives the sensor data signal and executes the program instructions to monitor and log data corresponding to the data signal received from the system sensor and to provide system control data to the output port.

Abstract: The present invention is directed to a filter cleaning device, in particular, diesel particulate filters. In one embodiment, the device comprises a source of high pressure fluid and means to transport the fluid to a nozzle or nozzles; an actuator for moving the nozzles; a controller with logic for instructing the actuator to automatically move the nozzle or nozzles across the surface of the filter; a collection device and suction device downstream of the filter; and ducting to transport the fluid between parts of the system. In one embodiment, a second collection device is used downstream of the suction device to provide additional particulate removal. There are three methods proposed for providing high pressure cleaning fluid to the filter face: 1) rotating the filter and rotating the jet about an axis outside of the filter; 2) moving a nozzle in two perpendicular directions (i.e., x-y); and 3) rotating a rectangular nozzle about the central axis of the filter.

Abstract: An apparatus and method to treat fluid streams, and in particular emissions from lean-burn engines such as diesel engines, are disclosed, which use multiple catalysts chosen to remove hydrocarbons, carbon monoxide, particulate matter, and oxides of nitrogen. The apparatus and method also provide for heat exchange between the inlet and outlet exhaust streams to sustain the catalyzed reactions, by placing the catalysts in the temperature zones where their operation is enhanced, and they also allow for regeneration of a filter used to trap particulate matter in the streams.

Abstract: A regeneration system is provided that comprises of one or more diesel particulate filters (DPFs), tubing to connect the DPF to the engine, means to regenerate the DPF in place while the engine is not operating, and a control system to start, operate and stop the regeneration means. In one embodiment, the system is designed with a control system that automatically invokes a regeneration sequence after every start. The regeneration sequence may be initiated after every engine start and stop event, and as such ensures that every time the engine is started the filter will be free of soot. The system optionally starts the regeneration immediately after the engine stops, to take advantage of an already preheated filter, and subsequently the reduce the required electrical input. The system optionally includes a bypass valve which directs the exhaust flow through path alternative to the DPF when the DPF pressure drop becomes excessive.

Abstract: A fluid-cooled mount for an injector; suitable, for example, for mounting an automotive fuel injector on a combustion exhaust system to inject an NOx reducing fluid into the exhaust system.

Abstract: The present invention is directed to a filter cleaning device, in particular, diesel particulate filters. In one embodiment, the device comprises a source of high pressure fluid and means to transport the fluid to a nozzle or nozzles; an actuator for moving the nozzles; a controller with logic for instructing the actuator to automatically move the nozzle or nozzles across the surface of the filter; a collection device and suction device downstream of the filter; and ducting to transport the fluid between parts of the system. In one embodiment, a second collection device is used downstream of the suction device to provide additional particulate removal. There are three methods proposed for providing high pressure cleaning fluid to the filter face: 1) rotating the filter and rotating the jet about an axis outside of the filter; 2) moving a nozzle in two perpendicular directions (i.e., x-y); and 3) rotating a rectangular nozzle about the central axis of the filter.

Abstract: A clamped pipe joint where at least one pipe has a joining end forming an expanded section of the pipe and a partially inwardly facing flare, and a clamp having a radially inwardly facing concave groove urging the pipes into sealing contact by radial compression of the clamp. The joint may be readily made and disassembled; requires no welding; and is particularly adaptable to large diameter, thin wall pipes formed from sheet metal, such as pipes forming the housings of components of internal combustion engine exhaust systems. Methods to make the joints, and pipes adapted to form the joints.

Abstract: A fluid-cooled mount for an injector; suitable, for example, for mounting an automotive fuel injector on a combustion exhaust system to inject an NOx reducing fluid into the exhaust system.

Abstract: An apparatus performs simultaneous data monitoring, logging, and controlling of the state of a system. The apparatus includes at least one system sensor that provides a sensor data signal corresponding to a system characteristic of which the sensor is detecting, a memory that stores data and program instructions, at least one output port that provides an output signal to the system, a timing source that provides clock timing signals, and a microprocessor that receives the sensor data signal and executes the program instructions to monitor and log data corresponding to the data signal received from the system sensor and to provide system control data to the output port, in accordance with the clock timing signals. The system sensor and other components can be easily fitted to the system. The apparatus memory permits programming that can be adjusted to complement the system to which the apparatus is fitted. The apparatus can efficiently record the system data that is collected by the sensor.

Abstract: A spiral shaped device for thermally processing a gas stream and a method of use thereof is provided. The spiral shaped device has at least one sidewall formed into a coil; at least one spiral passage, defined by the sidewall, for directing the gas stream through the device, and having an inlet and an outlet; and a matrix of heat resistant inert media disposed in at least a portion of the device. The device is particularly useful as a recuperative flameless thermal oxidizer for oxidizing organic material contained in the gas stream or as a heat exchanger. When the device is used as a flameless thermal oxidizer, the device preferably has at least two coiled sidewalls; at least two spiral passages defined by the coiled sidewalls; a chamber located proximate to the interior ends of the coiled sidewalls for directing the gas stream from the spiral inlet passage to spiral outlet passage; and a matrix of heat resistant inert media, preferably disposed in at least the chamber.

Abstract: A method and system for reducing pollutant concentration within an internal combustion engine exhaust stream is disclosed. Soot and products of incomplete combustion in the engine exhaust stream are destroyed by oxidizing them in a flameless thermal oxidizer that contains a matrix of heat-resistant media. Methods and systems for increasing particle residence time within the thermal oxidizer are also disclosed. These techniques include employing electrostatic precipitation, centrifugal force, and particle impaction sections. A method and system for reducing oxides of nitrogen (NOx) emissions is also disclosed. Low NOx concentration may be obtained by adding a SCR system after a thermal oxidizer, by tuning the engine to produce low NOx/high soot and destroying the soot in a thermal oxidizer, and by injecting a reductant into the thermal oxidizer. The flameless thermal oxidizer may be located between the engine and a turbo-charger to enhance thermal efficiency and to reduce turbo-charger wear.

Abstract: An integrated oxidation-reduction process whereby a thermal oxidation zone and a NOx reduction zone are incorporated into a single device. A thermal oxidation and catalytic reduction system having a multi-spiral, heat recuperative configuration and including a lean NOx catalytic section disposed in the low-temperature regions is disclosed, as is a corresponding method. The catalyst may be disposed on the oxidizer walls or on a matrix of porous inert media disposed in the spiral passages of the oxidizer. A film-injection technique to selectively provide reactants to the catalyst surface is also disclosed. The catalyst may be limited to a concave portion of a sidewall to diminish boundary layer separation of the reactants.

Abstract: A matrix bed is disclosed in which a non-planar reaction wave front is formed during operation. This is accomplished by heating the matrix bed, containing heat-resistant material, until at least a reaction portion of the matrix bed is above the temperature required for a plurality of reactant gas streams to react. Next, the reactant gas streams are directed through the matrix bed in a manner so as to form at least a Bunsen, Burke-Schumann, inverted-V, or some other type of non-planar reaction wave front at the portion of the matrix bed that is heated above the reactant gas streams reaction temperature. At the non-planar reaction wave front, the reactant gas streams react to produce a reaction product gas stream that is then exhausted from the matrix bed.

Abstract: An improved method and apparatus is provided for thermally reacting chemicals in a matrix bed of porous inert media. The reaction is conducted in an apparatus that is capable of establishing and maintaining a non-planar reaction wave within the matrix bed. The positioning of the non-planar reaction wave permits the interior surfaces of the vessel to be maintained at a temperature at least above 175.degree. F. The apparatus includes a vessel that contains the matrix bed; one or more feed tubes that extend into the matrix bed, where preferably an exterior portion of each of the feed tubes that passes through the vessel is insulated; an exhaust outlet; and a means for heating the matrix bed. The non-planar reaction wave is established by heating at least a portion of the matrix bed to at least the reaction temperature of the chemicals and feeding a process stream containing the chemicals to be reacted into the feed tubes.

Abstract: A process is provided for preparing oxymorphone from morphine by:(1) reacting morphine with (1a) an acyl halide or anhydride to form 3-acylmorphine, or (1b) reacting morphine with benzyl-halide to form 3-benzylmorphine;(2) Oxidizing the 6-hydroxy group of the 3-acyl or 3-benzylmorphine so as to form the corresponding 3-acyl or 3-benzylmorphinone; and thereafter either by (3a) or (3b):(3a) introducing a .beta.-oriented hydroxy group at the 14-position of the 3-acyl- or 3-benzyl-morphinone with aqueous hydrogen peroxide and an acid at a temperature of about 15.degree. to about 70.degree. C.

Abstract: A matrix bed is disclosed in which a non-planar reaction wave front is formed during operation. This is accomplished by heating the matrix bed, containing heat-resistant material, until at least a reaction portion of the matrix bed is above the temperature required for a plurality of reactant gas streams to react. Next, the reactant gas streams are directed through the matrix bed in a manner so as to form at least a Bunsen, Burke-Schumann, inverted-V, or some other type of non-planar reaction wave front at the portion of the matrix bed that is heated above the reactant gas streams reaction temperature. At the non-planar reaction wave front, the reactant gas streams react to produce a reaction product gas stream that is then exhausted from the matrix bed.