Patents by Inventor Andrei Bologa
Andrei Bologa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8500873Abstract: A waste-gas cleaning system for cleaning aerosol-laden gases or atmospheres includes an inlet configured to intake raw gas, an outlet configured to discharge clean gas and at least one assembly including an ionization section and a downstream central collection section disposed centrally with respect to a channel axis. The ionization section includes at least one level at a right angle to the channel axis. The at least one assembly includes at least two substantially identical ionization stages disposed in a plane and arranged uniformly about the channel axis and configured to conduct a gas flow radially, with respect to the channel axis, inward therethrough into the downstream central collection section so as to be similarly diverted such that a flow profile over an inside cross section in the downstream central collection section is not inclined with respect to the channel axis in the course of the gas flow.Type: GrantFiled: August 20, 2008Date of Patent: August 6, 2013Assignee: Karlsruher Institut fuer TechnologieInventors: Hanns-Rudolf Paur, Andrei Bologa, Klaus Woletz
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Patent number: 8337600Abstract: An electrostatic precipitator for removing solid and liquid components from an aerosol includes a precipitator housing having a raw gas inlet for an aerosol to be cleaned, a clean gas outlet for cleaned aerosol, and at least one aerosol supply channel flange-mounted to the raw gas inlet, a drain device for solid and liquid components that are separated from the aerosol, an ionization stage externally powered via a high-voltage bushing and including at least one metallic high-voltage rod that extends into a flow path of the aerosol and to which high voltage is applyable, and a collector stage disposed in the flow path downstream of the ionization stage.Type: GrantFiled: January 14, 2009Date of Patent: December 25, 2012Assignee: Karlsruher Institut Fuer TechnologieInventors: Hanns-Rudolf Paur, Andrei Bologa, Klaus Woletz
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Patent number: 8039765Abstract: In a leadthrough for an electrical high voltage conductor through a wall which separates a process area from an ambient area, comprising a body of a dielectric high voltage resistant material, two axially adjacent geometric base structures are provided, a cylinder and a truncated cone having a smaller diameter end adjacent the cylinder so that the cylinder has a radial annular surface area adjacent the truncated cone, and the cylinder includes axially extending gas supply bores arranged uniformly distributed over the circumference of the cylinder and having exit openings at the radial annular face of the cylinder such that gas supplied to the gas supply bores at the ambient area end of the cylinder is discharged from the gas supply bores onto the outer surface of the truncated cone to form a gas envelope around the truncated cone.Type: GrantFiled: July 28, 2008Date of Patent: October 18, 2011Assignee: Forschungszentrum Karlsruhe GmbHInventors: Andrei Bologa, Thomas Wascher
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Publication number: 20110011265Abstract: An electrostatic precipitator for removing solid and liquid components from an aerosol includes a precipitator housing having a raw gas inlet for an aerosol to be cleaned, a clean gas outlet for cleaned aerosol, and at least one aerosol supply channel flange-mounted to the raw gas inlet, a drain device for solid and liquid components that are separated from the aerosol, an ionization stage externally powered via a high-voltage bushing and including at least one metallic high-voltage rod that extends into a flow path of the aerosol and to which high voltage is applyable, and a collector stage disposed in the flow path downstream of the ionization stage.Type: ApplicationFiled: January 14, 2009Publication date: January 20, 2011Applicant: KARLSRUHER INSTITUT FUER TECHNOLOGIEInventors: Hanns-Rudolf Paur, Andrei Bologa, Klaus Woletz
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Publication number: 20110000375Abstract: A waste-gas cleaning system for cleaning aerosol-laden gases or atmospheres includes an inlet configured to intake raw gas, an outlet configured to discharge clean gas and at least one assembly including an ionization section and a downstream central collection section disposed centrally with respect to a channel axis. The ionization section includes at least one level at a right angle to the channel axis. The at least one assembly includes at least two substantially identical ionization stages disposed in a plane and arranged uniformly about the channel axis and configured to conduct a gas flow radially, with respect to the channel axis, inward therethrough into the downstream central collection section so as to be similarly diverted such that a flow profile over an inside cross section in the downstream central collection section is not inclined with respect to the channel axis in the course of the gas flow.Type: ApplicationFiled: August 20, 2008Publication date: January 6, 2011Applicant: Karlsruher Institut fuer TechnologieInventors: Hanns-Rudolf Paur, Andrei Bologa, Klaus Woletz
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Patent number: 7682427Abstract: A tubular collector for precipitating electrically loaded aerosols from a gas stream stands vertically in a gas stream duct. The stream flows upwards in the section. The tubular collector includes at least one group of pipe bundle which extends at the most over the internal width of the duct and including at least one dimensionally stable pipe bundle whose lower side or side that faces the flow rests on a grating or perforated metal sheet connected to an electric reference potential. At least the top side or side away from the stream of a group of pipe bundles is uniformly sprayed with rinsing liquid. The pipes of a group of pipe bundles are held apart by spacers so that the stream flows over their outer and inner sides. The pipes of a group of pipe bundles are identical and have different adjustment heights. The pipes have such a length that at least when a turbulent flow enters one pipe, a laminar gas stream is formed downstream.Type: GrantFiled: March 31, 2005Date of Patent: March 23, 2010Assignee: Forschungszentrum Karlsruhe GmbHInventors: Andrei Bologa, Hanns-Rudolf Paur, Klaus Woletz, Thomas Wäscher
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Patent number: 7621986Abstract: An electrostatic ionization system in a precipitation device for purifying a gas stream passing through it includes: an electrically conductive plate including a plurality of nozzles configured for passage of the gas stream; a sleeve positive-fittingly disposed on each nozzle; a high-voltage grid; a plurality of rod-shaped high-voltage electrodes each having an end connected to the grid and an exposed free end arranged identically centrally in a corresponding one of the nozzles, the electrodes each forming a circumferential gap and arranged at an electrical potential of the grid, wherein the free end of each of the electrodes is exposed downstream after the corresponding nozzle, wherein a wall of each sleeve is permeable to the gas stream and includes at least one of a grid, a perforated sheet and individual rods equidistantly spaced from each other and having free ends terminating in a holding ring.Type: GrantFiled: September 7, 2006Date of Patent: November 24, 2009Assignee: Forschungszentrum Karlsruhe GmbHInventors: Andrei Bologa, Hanns-Rudolf Paur, Klaus Woletz
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Patent number: 7517394Abstract: A wet electrostatic ionization stage in an electrostatic separation device for purifying a flowing aerosal including finely dispersed particles entrained in a gas. The wet electrostatic ionization stage includes a plate disposed across a cross section of a flow channel and connected to a ground potential or reference counterpotential. The plate includes substantially identical openings through which the gas flows. The wet electrostatic ionization stage also includes a high-voltage grid disposed across the cross section of the flow channel either upstream or downstream from the plate and electrically isolated from a wall of the flow channel. The high voltage grid is coupled to a high voltage potential via a bushing disposed in the wall of the flow channel. For each opening in the plate, a rod-shaped high-voltage electrode coupled at one end to the high-voltage grid has a free end projecting centrically into the one opening.Type: GrantFiled: March 11, 2006Date of Patent: April 14, 2009Assignee: Forschungszentrum Karlsruhe GmbHInventors: Andrei Bologa, Thomas Waescher, Hanns-Rudolf Paur, Ralf Arheidt
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Publication number: 20090044974Abstract: In a leadthrough for an electrical high voltage conductor through a wall which separates a process area from an ambient area, comprising a body of a dielectric high voltage resistant material, two axially adjacent geometric base structures are provided, a cylinder and a truncated cone having a smaller diameter end adjacent the cylinder so that the cylinder has a radial annular surface area adjacent the truncated cone, and the cylinder includes axially extending gas supply bores arranged uniformly distributed over the circumference of the cylinder and having exit openings at the radial annular face of the cylinder such that gas supplied to the gas supply bores at the ambient area end of the cylinder is discharged from the gas supply bores onto the outer surface of the truncated cone to form a gas envelope around the truncated cone.Type: ApplicationFiled: July 28, 2008Publication date: February 19, 2009Inventors: Andrei Bologa, Thomas Wascher
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Publication number: 20080302241Abstract: In an exhaust gas cleaning system, a built-in cleaning section is embodied as an upright U, in which a first leg includes an ionizing zone to ionize particles or aerosols carried in the gas. The gas flows from above into the first leg and downward in a direction of gravity through the ionizing zone. A second leg includes a collector to separate the particles or aerosols from the gas flow, which flows into and through the collector in a direction from below and upward, counter to the direction of gravity. A spraying device is mounted above the collector to rinse the collector. A transition from the first to the second leg includes a connecting zone including a container to collect the particles or aerosols separated of the gas, which container includes a discharge pipe disposed at a lowest point of the container to discharge the liquid enriched with the particles.Type: ApplicationFiled: May 6, 2005Publication date: December 11, 2008Applicant: Forschungszentrum Karlsruhe GmbHInventors: Andrei Bologa, Thomas Wascher, Hanns-Rudolf Paur, Klaus Woletz
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Publication number: 20080250930Abstract: An electrostatic ionization system in a precipitation device for purifying a gas stream passing through it includes: an electrically conductive plate including a plurality of nozzles configured for passage of the gas stream; a sleeve positive-fittingly disposed on each nozzle; a high-voltage grid; a plurality of rod-shaped high-voltage electrodes each having an end connected to the grid and an exposed free end arranged identically centrally in a corresponding one of the nozzles, the electrodes each forming a circumferential gap and arranged at an electrical potential of the grid, wherein the free end of each of the electrodes is exposed downstream after the corresponding nozzle, wherein a wall of each sleeve is permeable to the gas stream and includes at least one of a grid, a perforated sheet and individual rods equidistantly spaced from each other and having free ends terminating in a holding ring.Type: ApplicationFiled: September 7, 2006Publication date: October 16, 2008Inventors: Andrei Bologa, Hanns-Rudolf Paur, Klaus Woletz
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Publication number: 20080196590Abstract: A wet electrostatic ionization stage in an electrostatic separation device for purifying a flowing aerosal including finely dispersed particles entrained in a gas. The wet electrostatic ionization stage includes a plate disposed across a cross section of a flow channel and connected to a ground potential or reference counterpotential. The plate includes substantially identical openings through which the gas flows. The wet electrostatic ionization stage also includes a high-voltage grid disposed across the cross section of the flow channel either upstream or downstream from the plate and electrically isolated from a wall of the flow channel. The high voltage grid is coupled to a high voltage potential via a bushing disposed in the wall of the flow channel. For each opening in the plate, a rod-shaped high-voltage electrode coupled at one end to the high-voltage grid has a free end projecting centrically into the one opening.Type: ApplicationFiled: March 11, 2006Publication date: August 21, 2008Applicant: Forschungszentrum Karlsruhe GmbHInventors: Andrei Bologa, Thomas Waescher, Hanns-Rudolf Paur, Ralf Arheidt
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Publication number: 20070283903Abstract: A tubular collector for precipitating electrically loaded aerosols from a gas stream stands vertically in a gas stream duct. The stream flows upwards in said section. The tubular collector comprises at least one group of pipe bundle which extends at the most over the internal width of the duct and comprising at least one dimensionally stable pipe bundle whose lower side or side that faces the flow rests on a grating or perforated metal sheet connected to an electric reference potential. At least the top side or side away from the stream of a group of pipe bundles is uniformly sprayed with rinsing liquid. The pipes of a group of pipe bundles are held apart by spacers so that the stream flows over their outer and inner sides. The pipes of a group of pipe bundles are identical and have different adjustment heights. The pipes have such a length that at least when a turbulent flow enters one pipe, a laminar gas stream is formed downstream.Type: ApplicationFiled: March 31, 2005Publication date: December 13, 2007Applicant: FORSCHUNGSZENTRUM KARLSRUHE GMBHInventors: Andrei Bologa, Hanns-Rudolf Paur, Klaus Woletz, Thomas Wascher
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Patent number: 7101424Abstract: In an ionizer of an exhaust gas ionization system for ionizing moisture-laden gases in a channel comprising a nozzle plate having circular nozzle openings through which the gases are conducted, a high voltage electrode support grid arranged downstream of the nozzle plate and having electrode pins extending toward the nozzle openings and carrying at their free ends star structures with a number of tips projecting radially toward the circumference of the nozzle openings and being electrically charged for ionizing the moisture laden gases flowing through the nozzle openings past the star structures, the nozzle openings are sufficiently large to cause the gas flow to be slow enough to permit water to flow down along the walls of the nozzle openings against the upward flow of the gases through the nozzle openings.Type: GrantFiled: January 28, 2005Date of Patent: September 5, 2006Assignee: Forschungszentrum Karlsruhe GmbHInventors: Thomas Wäscher, Hanns-Rudolf Paur, Andrei Bologa, Werner Baumann
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Publication number: 20050126392Abstract: In an ionizer of an exhaust gas ionization system for ionizing moisture-laden gases in a channel comprising a nozzle plate having circular nozzle openings through which the gases are conducted, a high voltage electrode support grid arranged downstream of the nozzle plate and having electrode pins extending toward the nozzle openings and carrying at their free ends star structures with a number of tips projecting radially toward the circumference of the nozzle openings and being electrically charged for ionizing the moisture laden gases flowing through the nozzle openings past the star structures, the nozzle openings are sufficiently large to cause the gas flow to be slow enough to permit water to flow down along the walls of the nozzle openings against the upward flow of the gases through the nozzle openings.Type: ApplicationFiled: January 28, 2005Publication date: June 16, 2005Inventors: Thomas Wascher, Hanns-Rudolf Paur, Andrei Bologa, Werner Baumann
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Patent number: 6858064Abstract: In an apparatus for the purification of a gas which apparatus includes a three section conduit with an ionization and cleaning section in which particles contained in water-saturated air are ionized and then conducted through a chamber with grounded walls so that part of the particles are deposited on these walls, an additional cleaning section which includes grounded tubes past which the gas is conducted to remove additional charged particles and a filter section in which dry remaining fine particles are removed from the gas stream, the deposited particles are flushed from all three sections and the flushing water including the particles is cleaned and recycled.Type: GrantFiled: January 2, 2004Date of Patent: February 22, 2005Assignee: Forschungszentrum Karlsruhe GmbHInventors: Andrei Bologa, Thomas Wäscher, Hans-Rudolf Paur, Werner Baumann
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Publication number: 20040139853Abstract: In an apparatus for the purification of a gas which apparatus comprises three-conduit section, that is,Type: ApplicationFiled: January 2, 2004Publication date: July 22, 2004Inventors: Andrei Bologa, Thomas Wascher, Hans-Rudolf Paur, Werner Baumann