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Patent Agency Ranking
1.发明授权公开(公告)号：US11360070B2
公开(公告)日：2022-06-14
申请号：US16499517
申请日：2018-02-15
Applicant: Endress+Hauser Flowtec AG
Inventor： Christof Huber , Patrick Reith , Anastasios Badarlis
Abstract: The present disclosure relates to a method for determining the methane index of a hydrocarbon-containing combustion gas mixture which has natural gas or biogas, having the steps: flowing the gas mixture through a measuring assembly; determining a first value of a first measurement variable related to a viscosity of the gas mixture; determining a second value of a second measurement variable related to a density of the gas mixture; determining a pressure value of the gas mixture, said pressure value belonging to the first value and the second value; determining a temperature value of the gas mixture, said temperature value belonging to the first value and the second value; and determining the methane index as a function of the first value, the second value, the pressure value, and the temperature value.
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公开(公告)号：US20190317037A1
公开(公告)日：2019-10-17
申请号：US16471162
申请日：2017-11-22
Applicant: Endress+Hauser Flowtec AG , TRUEDYNE SENSORS AG
Inventor： Christof Huber , Patrick Reith , Anastasios Badarlis
Abstract: The present disclosure relates to a gas analyzer for measuring density and/or viscosity of a medium. The gas analyzer includes a connection panel having first and second media openings, each of which extends from a first surface to a second surface of the connection panel. A sensor panel is joined together with the connection panel on a first joint plane, and a cover panel is joined together with the sensor panel on a second joint plane, on a sensor panel face facing away from the connection panel. The cover panel has a cover panel cavity which communicates with the first and second media openings, and the sensor panel has at least one oscillator cavity which communicates with the first and second media openings. The sensor panel has a micromechanical oscillator arranged in the oscillator cavity and excitable to mechanically vibrate perpendicularly to the joint planes.
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3.发明授权公开(公告)号：US11474092B2
公开(公告)日：2022-10-18
申请号：US16348139
申请日：2017-10-10
Applicant: Endress+Hauser Flowtec AG
Inventor： Christof Huber , Patrick Reith , Anastasios Badarlis
Abstract: A method for determining properties of a hydrocarbon-containing gas mixture includes determining a thermal conductivity value, density measurement, viscosity measurement, and temperature and pressure. The method also includes determining a hydrogen content of the gas mixture on the basis of the thermal conductivity value and the temperature and pressure, determining a density measurement and associated temperature and pressure, and determining the mean molar mass or standard density on the basis of the density measurement and the temperature and pressure. The method further includes determining the mean molar mass or standard density of a hydrogen-free residual gas mixture based on the mean molar mass or standard density and the hydrogen fraction, determining the Wobbe index of the residual gas mixture based on the viscosity measurement and the temperature and pressure, and determining a calorific value based on the mean molar mass or standard density and the Wobbe index.
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4.发明申请公开(公告)号：US20200041479A1
公开(公告)日：2020-02-06
申请号：US16499517
申请日：2018-02-15
Applicant: Endress+Hauser Flowtec AG
Inventor： Christof Huber , Patrick Reith , Anastasios Badarlis
Abstract: The present disclosure relates to a method for determining the methane index of a hydrocarbon-containing combustion gas mixture which has natural gas or biogas, having the steps: flowing the gas mixture through a measuring assembly; determining a first value of a first measurement variable related to a viscosity of the gas mixture; determining a second value of a second measurement variable related to a density of the gas mixture; determining a pressure value of the gas mixture, said pressure value belonging to the first value and the second value; determining a temperature value of the gas mixture, said temperature value belonging to the first value and the second value; and determining the methane index as a function of the first value, the second value, the pressure value, and the temperature value.
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公开(公告)号：US11112340B2
公开(公告)日：2021-09-07
申请号：US16471162
申请日：2017-11-22
Applicant: ENDRESS+HAUSER FLOWTEC AG , TRUEDYNE SENSORS AG
Inventor： Christof Huber , Patrick Reith , Anastasios Badarlis
Abstract: The present disclosure relates to a gas analyzer for measuring density and/or viscosity of a medium. The gas analyzer includes a connection panel having first and second media openings, each of which extends from a first surface to a second surface of the connection panel. A sensor panel is joined together with the connection panel on a first joint plane, and a cover panel is joined together with the sensor panel on a second joint plane, on a sensor panel face facing away from the connection panel. The cover panel has a cover panel cavity which communicates with the first and second media openings, and the sensor panel has at least one oscillator cavity which communicates with the first and second media openings. The sensor panel has a micromechanical oscillator arranged in the oscillator cavity and excitable to mechanically vibrate perpendicularly to the joint planes.
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