Patents by Inventor Per-Erik Albert Appelo
Per-Erik Albert Appelo 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).
-
Patent number: 11092980Abstract: A valve with relatively reduced tank penetration is useful for cleaning at least a portion of a filter unit, such as multiple filter bags, arranged in a filter installation for filtering polluted gas passed therethrough. This valve is preferably a relatively high performance pulse valve of relatively small pressure vessel penetration cross section area useful with relatively lower cost pressure vessels.Type: GrantFiled: November 16, 2016Date of Patent: August 17, 2021Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: Per-Erik Albert Appelo, Abdul Basheer Kuttecheri
-
Patent number: 10343098Abstract: Pulse valves and methods of using pulse valves are provided. The pulse valves include a dampening mechanism to decrease mechanical stresses, decrease operating noise, decrease compressed air waste and increase operational life expectancy. Such dampening mechanism is arranged within an internal area of the pulse valve housing. Additionally, fluid within the internal area of the pulse valve provides cushioning effects during operation of the pulse valve.Type: GrantFiled: May 13, 2013Date of Patent: July 9, 2019Assignee: General Electric CompanyInventor: Per-Erik Albert Appelo
-
Patent number: 10173162Abstract: A fabric filter including a hollow elongated upper section having a fabric sleeve with a cross sectional shape which is circular, oval or rectangular; a hollow elongated lower section including a fabric sleeve having pleats extending along a length of the lower section and a bottom of the lower section is covered, wherein an internal cross sectional area of the lower section is smaller than an internal cross sectional area of the upper section, wherein while joined the upper section and the lower section define a chamber within the fabric sleeves extending the lengths of the upper section and the lower section and the chamber is open at an upper end of the upper section.Type: GrantFiled: January 24, 2017Date of Patent: January 8, 2019Assignee: General Electric Technology GmbHInventors: Per-Erik Albert Appelo, Peter Folke Ivar Wieslander
-
Patent number: 10092872Abstract: The invention refers to an arrangement of a valve and a pressure vessel. The valve has a housing with at least an opening, a plunger slideably positioned in the housing, a control mechanism to cause plunger movement. The pressure vessel has an exterior surface with at least an opening. The valve is connected to the at least an opening of the pressure vessel. The plunger has at least a first part with a larger size and a second part with a smaller size. The first part of the plunger is positioned outside of the pressure vessel in all valve configurations.Type: GrantFiled: September 10, 2015Date of Patent: October 9, 2018Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventor: Per-Erik Albert Appelo
-
Publication number: 20180207570Abstract: A fabric filter including a hollow elongated upper section having a fabric sleeve with a cross sectional shape which is circular, oval or rectangular; a hollow elongated lower section including a fabric sleeve having pleats extending along a length of the lower section and a bottom of the lower section is covered, wherein an internal cross sectional area of the lower section is smaller than an internal cross sectional area of the upper section, wherein while joined the upper section and the lower section define a chamber within the fabric sleeves extending the lengths of the upper section and the lower section and the chamber is open at an upper end of the upper section.Type: ApplicationFiled: January 24, 2017Publication date: July 26, 2018Inventors: Per-Erik Albert APPELO, Peter Folke Ivar WIESLANDER
-
Patent number: 9993762Abstract: A relatively quiet pulse valve and a method of using the pulse valve are provided. The pulse valve includes a dampening mechanism to decrease mechanical stresses, decrease operating noise, decrease compressed air waste and increase operational life expectancy of the valve. Such dampening mechanism is arranged within an internal area of the pulse valve housing.Type: GrantFiled: May 13, 2013Date of Patent: June 12, 2018Assignee: General Electric Technology GmbHInventor: Per-Erik Albert Appelo
-
Publication number: 20180140999Abstract: Apparatus and methods for coal combustion and for flue gas mercury emissions reduction following the combustion of coal use ammonium halides. Ammonium halides are supplied to a perforated housing within a duct for decomposition and release of NH3 and HBr or HCl into the flue gas for oxidation of elemental mercury present in the flue gas. The oxidized mercury is then separated from the flue gas using a particulate collection system and/or a wet flue gas desulfurization system for flue gas mercury emissions reduction.Type: ApplicationFiled: November 18, 2016Publication date: May 24, 2018Inventor: Per-Erik Albert APPELO
-
Publication number: 20180136671Abstract: A valve with relatively reduced tank penetration is useful for cleaning at least a portion of a filter unit, such as multiple filter bags, arranged in a filter installation for filtering polluted gas passed therethrough. This valve is preferably a relatively high performance pulse valve of relatively small pressure vessel penetration cross section area useful with relatively lower cost pressure vessels.Type: ApplicationFiled: November 16, 2016Publication date: May 17, 2018Inventors: Per-Erik Albert APPELO, Abdul Basheer KUTTECHERI
-
Publication number: 20160367929Abstract: The fabric filter includes a first chamber with an inlet, a second chamber with an outlet, filter bags housed in the first chamber and having mouths that open in the second chamber and defining at least a bag nest, manifolds with nozzles facing the mouths and housed in the second chamber, a flow direction along which during operation a dirty gas to be treated in the fabric filter enters the bags nest. Angles between the manifolds and the flow gas direction are bigger than 45 degree.Type: ApplicationFiled: June 17, 2015Publication date: December 22, 2016Inventors: Per Robert MOESTAM, Per-Erik Albert APPELO
-
Publication number: 20160074798Abstract: The invention refers to an arrangement of a valve and a pressure vessel. The valve has a housing with at least an opening, a plunger slideably positioned in the housing, a control mechanism to cause plunger movement. The pressure vessel has an exterior surface with at least an opening. The valve is connected to the at least an opening of the pressure vessel. The plunger has at least a first part with a larger size and a second part with a smaller size. The first part of the plunger is positioned outside of the pressure vessel in all valve configurations.Type: ApplicationFiled: September 10, 2015Publication date: March 17, 2016Inventor: Per-Erik Albert APPELO
-
Publication number: 20160076665Abstract: A valve and a method of using the valve to clean a filter unit are provided. As such, the valve is a small vessel penetration diameter cleaning valve that requires no or less installation welding and a reduced pressure vessel wall thickness while not jeopardizing cleaning valve reliability or efficiency. The valve also includes a dampening mechanism to decrease mechanical stresses, decrease operating noise and increase operational life expectancy of the valve.Type: ApplicationFiled: September 17, 2014Publication date: March 17, 2016Inventor: Per-Erik Albert APPELO
-
Patent number: 8906333Abstract: An air quality control system (AQCS) useful for treating flue gas, such as flue gas produced by a fossil fuel fired boiler, is described. In addition to flue gas treatment, the AQCS provides for air preheater flue gas outlet flue gas temperature reduction and air preheater corrosion prevention while reducing capital costs, increasing reliability and increasing operating flexibility with regard to fuel selection.Type: GrantFiled: November 27, 2013Date of Patent: December 9, 2014Assignee: ALSTOM Technology LtdInventor: Per-Erik Albert Appelo
-
Patent number: 8894744Abstract: A system is provided for removing particulate matter from a particulate collection device utilized to collect particulate matter from a flue gas stream. The system includes a pressure vessel for storing a pressurized gaseous medium in an interior area defined by the pressure vessel. A first pressure sensor is in communication with the interior area and configured to measure pressure therein. A particulate collection device for collecting particulate matter from a flue gas stream includes a conduit in communication with the pressure vessel. A valve is disposed in the conduit and adapted to open to release a pulse of the pressurized gaseous medium from the pressure vessel into the particulate collection device. A control system is in communication with the valve and the first pressure sensor, and includes a controller configured to operate the valve based upon at least one pressure measurement received from the first pressure sensor.Type: GrantFiled: March 12, 2013Date of Patent: November 25, 2014Assignee: ALSTOM Technology LtdInventors: Per-Erik Albert Appelo, Mikael Fredriksson
-
Publication number: 20140332038Abstract: Pulse valves and methods of using pulse valves are provided. The pulse valves include a dampening mechanism to decrease mechanical stresses, decrease operating noise, decrease compressed air waste and increase operational life expectancy. Such dampening mechanism is arranged within an internal area of the pulse valve housing. Additionally, fluid within the internal area of the pulse valve provides cushioning effects during operation of the pulse valve.Type: ApplicationFiled: May 13, 2013Publication date: November 13, 2014Applicant: ALSTOM Technology LtdInventor: Per-Erik Albert Appelo
-
Publication number: 20140332039Abstract: A relatively quiet pulse valve and a method of using the pulse valve are provided. The pulse valve includes a dampening mechanism to decrease mechanical stresses, decrease operating noise, decrease compressed air waste and increase operational life expectancy of the valve. Such dampening mechanism is arranged within an internal area of the pulse valve housing.Type: ApplicationFiled: May 13, 2013Publication date: November 13, 2014Applicant: ALSTOM Technology LtdInventor: Per-Erik Albert Appelo
-
Patent number: 8828341Abstract: A method for reducing mercury emission and/or re-emission in cleaned flue gas through control of sulfite concentration within a wet flue gas desulfurization (WFGD) system is disclosed. One method for reducing mercury emission and/or re-emission through control of sulfite concentration is to measure the sulfite concentration of an aqueous alkaline slurry used in a WFGD system and comparing the same to a predetermined sulfite concentration value. If the comparison reveals the measured sulfite concentration is above the predetermined values, the amount of oxidation air supplied to the system is increased. If the comparison reveals the measured sulfite concentration is below the predetermined values, the amount of oxidation air supplied to the system is decreased.Type: GrantFiled: July 18, 2013Date of Patent: September 9, 2014Assignee: ALSTOM Technology LtdInventors: Per-Erik Albert Appelo, Dennis James Laslo
-
Publication number: 20130255485Abstract: A system is provided for removing particulate matter from a particulate collection device utilized to collect particulate matter from a flue gas stream. The system includes a pressure vessel for storing a pressurized gaseous medium in an interior area defined by the pressure vessel. A first pressure sensor is in communication with the interior area and configured to measure pressure therein. A particulate collection device for collecting particulate matter from a flue gas stream includes a conduit in communication with the pressure vessel. A valve is disposed in the conduit and adapted to open to release a pulse of the pressurized gaseous medium from the pressure vessel into the particulate collection device. A control system is in communication with the valve and the first pressure sensor, and includes a controller configured to operate the valve based upon at least one pressure measurement received from the first pressure sensor.Type: ApplicationFiled: March 12, 2013Publication date: October 3, 2013Applicant: ALSTOM TECHNOLOGY LTDInventors: Per-Erik Albert Appelo, Mikael Fredriksson