Patents by Inventor Norbert Kreft
Norbert Kreft 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: 11305211Abstract: A condensate separator for an exhaust gas measuring system. The condensate separator includes a housing with condensate discharge opening, an inlet opening arranged in the housing, a cooled inlet line which introduces a fluid into the housing, and a gas outlet port with a gas entrance and a gas exit. The cooled inlet line opens into the inlet opening. The gas outlet port opens into a gas outlet line. A cross-sectional area of the gas entrance of the gas outlet port is larger than a cross-sectional area of the gas exit of the gas outlet port.Type: GrantFiled: December 1, 2017Date of Patent: April 19, 2022Assignee: AVL EMISSION TEST SYSTEMS GMBHInventors: Norbert Kreft, Christopher Garthe, Torsten Bornemann, Dirk Woiki
-
Patent number: 10986749Abstract: A switch cabinet for an exhaust-gas measurement installation includes a cabinet body with two side walls, a ceiling, a floor, a front side and a back wall, a door to close the front side, a measurement gas distributor arranged in the cabinet body with an outlet, a coupling element fastened to the measurement gas distributor to form the outlet, at least one measuring device arranged in the cabinet body with an inlet, and a coupling element fastened to the at least one measuring device to form the inlet. The inlet is connected to the outlet to provide a gas-tight connection. The measurement gas distributor moves relative to the cabinet body so that the coupling element fastened to the measurement gas distributor and forming the outlet can be connected by insertion to the coupling element fastened to the at least one measuring device and forming the inlet.Type: GrantFiled: April 13, 2017Date of Patent: April 20, 2021Assignee: AVL EMISSION TEST SYSTEMS GMBHInventors: Achim Dickow, Norbert Kreft
-
Publication number: 20200323099Abstract: A switch cabinet for an exhaust-gas measurement installation includes a cabinet body with two side walls, a ceiling, a floor, a front side and a back wall, a door to close the front side, a measurement gas distributor arranged in the cabinet body with an outlet, a coupling element fastened to the measurement gas distributor to form the outlet, at least one measuring device arranged in the cabinet body with an inlet, and a coupling element fastened to the at least one measuring device to form the inlet. The inlet is connected to the outlet to provide a gas-tight connection. The measurement gas distributor moves relative to the cabinet body so that the coupling element fastened to the measurement gas distributor and forming the outlet can be connected by insertion to the coupling element fastened to the at least one measuring device and forming the inlet.Type: ApplicationFiled: April 13, 2017Publication date: October 8, 2020Applicant: AVL EMISSION TEST SYSTEMS GMBHInventors: ACHIM DICKOW, NORBERT KREFT
-
Publication number: 20190344197Abstract: A condensate separator for an exhaust gas measuring system. The condensate separator includes a housing with condensate discharge opening, an inlet opening arranged in the housing, a cooled inlet line which introduces a fluid into the housing, and a gas outlet port with a gas entrance and a gas exit. The cooled inlet line opens into the inlet opening. The gas outlet port opens into a gas outlet line. A cross-sectional area of the gas entrance of the gas outlet port is larger than a cross-sectional area of the gas exit of the gas outlet port.Type: ApplicationFiled: December 1, 2017Publication date: November 14, 2019Applicant: AVL EMISSION TEST SYSTEMS GMBHInventors: NORBERT KREFT, CHRISTOPHER GARTHE, TORSTEN BORNEMANN, DIRK WOIKI
-
Patent number: 10317318Abstract: An exhaust-gas sampling system includes a main conveying line, a main throughput pump which conveys a sample gas in the main conveying line, a sample gas bag, a sample gas withdrawal line which fluidically connects the main conveying line to the sample gas bag, a throughflow control element arranged in the sample gas withdrawal line, an analyzer, a sample gas analysis line which connects the analyzer to the sample gas bag, an evacuation line which establishes a fluidic connection between the main throughput pump and the sample gas bag, and a first valve arranged in the evacuation line. The first valve opens and closes the evacuation line.Type: GrantFiled: December 11, 2015Date of Patent: June 11, 2019Assignee: AVL EMISSION TEST SYSTEMS GMBHInventors: Sascha Willich, Norbert Kreft, Christopher Garthe
-
Publication number: 20180017470Abstract: An exhaust-gas sampling system includes a main conveying line, a main throughput pump which conveys a sample gas in the main conveying line, a sample gas bag, a sample gas withdrawal line which fluidically connects the main conveying line to the sample gas bag, a throughflow control element arranged in the sample gas withdrawal line, an analyzer, a sample gas analysis line which connects the analyzer to the sample gas bag, an evacuation line which establishes a fluidic connection between the main throughput pump and the sample gas bag, and a first valve arranged in the evacuation line. The first valve opens and closes the evacuation line.Type: ApplicationFiled: December 11, 2015Publication date: January 18, 2018Applicant: AVL EMISSION TEST SYSTEMS GMBHInventors: SASCHA WILLICH, NORBERT KREFT, CHRISTOPHER GARTHE
-
Patent number: 9343305Abstract: The invention relates to a method for the continuous coating of at least one substrate 14 with a semiconductor material e.g. CdTe. To this end a semiconductor material is sublimated in at least one crucible 30 in order to deposit it on a substrate, e.g. a glass panel. If the crucible 30 is filled with semiconductor material (16) during the deposition and/or evaporation, the set-up time required otherwise is then eliminated. Preferably used for carrying out the method is a CSS reactor comprising a crucible, a guide for substrates and at least one lock through which the crucible can be refilled during evaporation of semiconductor material from the crucible.Type: GrantFiled: October 28, 2011Date of Patent: May 17, 2016Assignee: ANTEC SOLAR GMBHInventors: Norbert Kreft, Stefan Oelting
-
Patent number: 9212999Abstract: A device for determining a concentration of at least one gas in a sample gas stream includes an analysis chamber, a detector, and a connecting channel. The analysis chamber is configured to have the sample gas stream and a reaction gas stream be introduced therein. The sample gas stream and the reaction gas stream are mixed to a gas mixture which reacts so as to emit an optical radiation. The detector is configured to measure the optical radiation. The connecting channel is configured to connect the analysis chamber to the detector. The connecting channel is configured as a light conductor extending from the analysis chamber to the detector.Type: GrantFiled: March 12, 2013Date of Patent: December 15, 2015Assignee: AVL EMISSION TEST SYSTEMS GMBHInventor: Norbert Kreft
-
Publication number: 20150125345Abstract: A device for determining a concentration of at least one gas in a sample gas stream includes an analysis chamber, a detector, and a connecting channel. The analysis chamber is configured to have the sample gas stream and a reaction gas stream be introduced therein. The sample gas stream and the reaction gas stream are mixed to a gas mixture which reacts so as to emit an optical radiation. The detector is configured to measure the optical radiation. The connecting channel is configured to connect the analysis chamber to the detector. The connecting channel is configured as a light conductor extending from the analysis chamber to the detector.Type: ApplicationFiled: March 12, 2013Publication date: May 7, 2015Inventor: Norbert Kreft
-
Publication number: 20140147992Abstract: The invention relates to a method for the continuous coating of at least one substrate 14 with a semiconductor material e.g. CdTe. To this end a semiconductor material is sublimated in at least one crucible 30 in order to deposit it on a substrate, e.g. a glass panel. If the crucible 30 is filled with semiconductor material (16) during the deposition and/or evaporation, the set-up time required otherwise is then eliminated. Preferably used for carrying out the method is a CSS reactor comprising a crucible, a guide for substrates and at least one lock through which the crucible can be refilled during evaporation of semiconductor material from the crucible.Type: ApplicationFiled: October 28, 2011Publication date: May 29, 2014Applicant: Antec Solar GmbHInventors: Norbert Kreft, Stefan Oelting
-
Publication number: 20120156101Abstract: An assembly for a controlled feeding and delivery of a gas mixture into an analysis chamber includes at least one metering line, a flow limiter disposed in the at least one metering line, a first capillary disposed in the at least one metering line downstream of the flow limiter, an analysis chamber configured to receive the gas mixture from the at least one metering line, an outlet line, and a bypass line with a nozzle disposed therein. The bypass line branches off from the at least one metering line downstream of the flow limiter and upstream of the first capillary. The bypass line opens into the outlet line downstream of the analysis chamber.Type: ApplicationFiled: April 28, 2010Publication date: June 21, 2012Applicant: AVL EMISSION TEST SYSTEMS GMBHInventor: Norbert Kreft
-
Patent number: 7574307Abstract: An exhaust emission analysis system is provided that includes an exhaust and dilution gas source respectively providing exhaust and dilution gases. A dilution unit includes exhaust and dilution gas mass flow controllers, fluidly connected to the exhaust and dilution gas sources. The mass flow controllers define a gas flow rate of gas from their respective gas source. A connection mixes the gases to provide a diluted exhaust gas having an incorrect dilution ratio. A water measurement device measures the water content of the exhaust gas. A water content dilution signal is sent from the water measurement device to a control device. An adjustment factor is calculated by the controller and a flow rate command signal is sent from the controller, to the exhaust gas mass flow controller to adjust the gas flow rate of the exhaust gas and provide a corrected dilution ratio at the connection.Type: GrantFiled: August 31, 2004Date of Patent: August 11, 2009Assignee: AVL North America Inc.Inventors: William Martin Silvis, Norbert Kreft, Gerald Marek, Wolfgang Schindler
-
Patent number: 7340940Abstract: A perforated mixing plate and is fluid passage are used in conjunction with a dilution tunnel to prevent particulate matter from collecting on the sampling system components. An inlet of a sampling probe is offset from the centerline of the dilution tunnel to a location corresponding to an average particulate matter concentration along a flow profile of a sample mixture to reduce the length of the dilution tunnel.Type: GrantFiled: February 7, 2007Date of Patent: March 11, 2008Assignee: AVL North America Inc.Inventor: Norbert Kreft
-
Patent number: 7293454Abstract: An exhaust flow measurement system uses a noise attenuation device to cancel exhaust gas pulsations at the harmonic frequency of a flow rate measurement transducer.Type: GrantFiled: December 10, 2004Date of Patent: November 13, 2007Assignee: AVL North America Inc.Inventors: Norbert Kreft, William Martin Silvis
-
Publication number: 20070125188Abstract: A perforated mixing plate and is fluid passage are used in conjunction with a dilution tunnel to prevent particulate matter from collecting on the sampling system components. An inlet of a sampling probe is offset from the centerline of the dilution tunnel to a location corresponding to an average particulate matter concentration along a flow profile of a sample mixture to reduce the length of the dilution tunnel.Type: ApplicationFiled: February 7, 2007Publication date: June 7, 2007Inventor: Norbert Kreft
-
Patent number: 7191671Abstract: A perforated mixing plate and is fluid passage are used in conjunction with a dilution tunnel to prevent particulate matter from collecting on the sampling system components. An inlet of a sampling probe is offset from the centerline of the dilution tunnel to a location corresponding to an average particulate matter concentration along a flow profile of a sample mixture to reduce the length of the dilution tunnel.Type: GrantFiled: October 29, 2004Date of Patent: March 20, 2007Assignee: AVL North America Inc.Inventor: Norbert Kreft
-
Patent number: 7141090Abstract: An emission sampling system includes an exhaust gas probe for sampling exhaust gas. A dilution gas source provides a dilution gas, and a mixing device is in fluid communication with the exhaust gas probe and the dilution gas source to mix the sampled exhaust gas and the dilution gas to form a diluted exhaust gas. A particulate filter is in fluid communication with the mixing device downstream therefrom. A dilution temperature conditioning device is arranged between the dilution gas source and the mixing device for obtaining a desired dilution gas temperature. A temperature sensor is arranged in the sampling system for producing a temperature signal corresponding to a temperature of fluid flowing through the sampling system. A controller is connected to the temperature sensor for processing the temperature signal and determining a filter temperature from the temperature signal. The controller commands the conditioning device in response to the filter temperature.Type: GrantFiled: March 28, 2003Date of Patent: November 28, 2006Assignee: AVL North America Inc.Inventors: Gerald Marek, Norbert Kreft
-
Patent number: 7055364Abstract: A vehicle exhaust measurement system is provided includes that a conduit having a conduit inlet and a conduit outlet. A make-up air tube is connected to and is in fluid communication with the conduit inlet. The make-up air tube provides make-up air for mixing an exhaust gas. A mixed gas tube is connected to and is in fluid communication with the conduit outlet. The mixed gas tube conveys a mixture of make-up air and exhaust gas to analysis equipment. In the preferred embodiment, the exhaust gas tube extends through an outer wall of the conduit. A mixing plate is arranged in either the conduit or the mixed gas tube with the exhaust gas tube extending to a position adjacent to the mixing plate. The exhaust gas tube conveys the exhaust gas to the mixing plate to mix the exhaust gas and the make-up air at the mixing plate.Type: GrantFiled: November 4, 2004Date of Patent: June 6, 2006Assignee: AVL North America, Inc.Inventors: William Martin Silvis, Norbert Kreft, Gerald Marek, James Williamson
-
Patent number: 7000449Abstract: A vehicle exhaust measurement system is provided includes that a conduit having a conduit inlet and a conduit outlet. A make-up air tube is connected to and is in fluid communication with the conduit inlet. The make-up air tube provides make-up air for mixing an exhaust gas. A mixed gas tube is connected to and is in fluid communication with the conduit outlet. The mixed gas tube conveys a mixture of make-up air and exhaust gas to analysis equipment. In the preferred embodiment, the exhaust gas tube extends through an outer wall of the conduit. A mixing plate is arranged in either the conduit or the mixed gas tube with the exhaust gas tube extending to a position adjacent to the mixing plate. The exhaust gas tube conveys the exhaust gas to the mixing plate to mix the exhaust gas and the make-up air at the mixing plate.Type: GrantFiled: November 4, 2004Date of Patent: February 21, 2006Assignee: AVL North America Inc.Inventors: William Martin Silvis, Norbert Kreft, Gerald Marek, James Williamson
-
Patent number: 6962090Abstract: An exhaust gas measurement system is provided that includes a probe to find a sample exhaust gas passageway for collecting exhaust gas. A stainless steel canister is fluidly connected to the probe for storing the exhaust gas. A pump fluidly interconnects the probe and the canister for transferring the exhaust gas from the probe to the canister. A pressure mass flow controller fluidly interconnects the probe and the canister and produces an exhaust gas flow measurement corresponding to the flow of the exhaust gas from the probe to the canister. A temperature sensor senses a temperature of the exhaust gas proximate to the pressure mass flow controller. The temperature sensor corrects the exhaust gas flow measurement based upon the temperature sensed. A pressure sensor senses a pressure of the exhaust gas proximate to the pressure mass flow controller. The temperature sensor corrects the exhaust gas flow measurement based upon the pressure sensed.Type: GrantFiled: February 28, 2002Date of Patent: November 8, 2005Assignee: AVL North America Inc.Inventors: Joseph Fitzgerald McDonald, William Martin Silvis, Norbert Kreft, Gerald Marek