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    Ozone generation with directly cooled plasma channels
    1.
    发明授权
    Ozone generation with directly cooled plasma channels 有权

    公开(公告)号：US10919766B2

    公开(公告)日：2021-02-16

    申请号：US15769959

    申请日：2016-10-19

    Applicant: XYLEM IP MANAGEMENT S.à r.l.

    Inventor： Ralf Fiekens ,  Reiner Fietzek ,  Manfred Salvermoser ,  Nicole Brüggemann

    IPC: C01B13/11

    Abstract: An ozone generator with a high voltage electrode and at least one counter electrode which limit a gap in which at least one dielectric and an electrically non-conductive structure are arranged and through which a stream of gas flows in a direction of flow. The high voltage electrode and the at least one counter electrode are provided with a connection for an electrical voltage supply in order to generate silent discharges. The electrically non-conductive structure contains pores with a nominal pore size (x) of 100 μm

    Ozone Generation With Directly Cooled Plasma
    4.
    发明申请
    Ozone Generation With Directly Cooled Plasma 审中-公开

    公开(公告)号：US20190023570A1

    公开(公告)日：2019-01-24

    申请号：US15755601

    申请日：2016-08-24

    Applicant: XYLEM IP MANAGEMENT S.à r.l.

    Inventor： Nicole Brüggemann ,  Ralf Fiekens ,  Reiner Fietzek ,  Dr. Manfred Salvermoser

    IPC: C01B13/11 ,  D04C1/06

    Abstract: An ozone generator with a high voltage electrode and at least one counter electrode which limit a gap in which at least one dielectric is arranged and which is flowed through by a gas flow in the direction of flow. The high voltage electrode and the at least one counter electrode are provided with a connection for an electrical power supply to generate silent discharges. A fabric is arranged in the gas flow. The fabric includes a material combination including at least one wire and at least one electrically non-conductive fiber.

    Ozone generation with directly cooled plasma
    5.
    发明授权
    Ozone generation with directly cooled plasma 有权

    公开(公告)号：US10919765B2

    公开(公告)日：2021-02-16

    申请号：US15755601

    申请日：2016-08-24

    Applicant: XYLEM IP MANAGEMENT S.à r.l.

    Inventor： Nicole Brüggemann ,  Ralf Fiekens ,  Reiner Fietzek ,  Manfred Salvermoser

    IPC: C01B13/11 ,  D04C1/06

    Abstract: An ozone generator with a high voltage electrode and at least one counter electrode which limit a gap in which at least one dielectric is arranged and which is flowed through by a gas flow in the direction of flow. The high voltage electrode and the at least one counter electrode are provided with a connection for an electrical power supply to generate silent discharges. A fabric is arranged in the gas flow. The fabric includes a material combination including at least one wire and at least one electrically non-conductive fiber.

    Ozone generation at high pressures
    6.
    发明授权
    Ozone generation at high pressures 有权

    公开(公告)号：US10829373B2

    公开(公告)日：2020-11-10

    申请号：US15998894

    申请日：2017-02-08

    Applicant: Xylem IP Management S.à r.l.

    Inventor： Ralf Fiekens ,  Reiner Fietzek ,  Manfred Salvermoser ,  Nicole Brüggemann

    IPC: C01B13/11

    Abstract: A method for producing ozone at elevated pressure with a capacity of at least 1 kg ozone/hour by an ozone generator having a high voltage electrode and a counter electrode. The electrodes delimit a gap in which a dielectric is arranged and through which a gas containing oxygen and having a gas pressure of pgas flows. The high voltage electrode and the counter electrode with a connection for an electric power supply to generate discharges are provided in at least one discharge gap. The power supply provides a voltage in a range from 1 kV to 50 kV and wherein stroke widths di of the discharge are distributed between a minimum stroke width dmin and a maximum stroke width dmax. The gas pressure pgas of the gas containing oxygen at the outlet of the ozone generator is at least 3 bar.

    Control algorithm for an electronic dimming ballast of a UV lamp
    7.
    发明授权
    Control algorithm for an electronic dimming ballast of a UV lamp 有权

    公开(公告)号：US10143073B2

    公开(公告)日：2018-11-27

    申请号：US15701631

    申请日：2017-09-12

    Applicant: XYLEM IP MANAGEMENT S.à r.l.

    Inventor： Reiner Fietzek ,  Dirk Riepe

    IPC: H05B41/392 ,  H05B1/02 ,  H05B33/06 ,  H05B41/298

    Abstract: A control algorithm for operating a fluid disinfecting system by UV radiation, wherein the UV radiation is generated by at least one UV lamp including a pair of heating cathodes having a discharge voltage (UD), the UV lamp is operated by an electronic ballast unit equipped with the control algorithm for adjusting the UV power of the UV lamp by pulse-width-modulation to reduce UV power. The control algorithm decreases the current to a level (Ikmin), increases the voltage amplitude (U) above the discharge voltage (UD) until a desired UV power level is reached. The pulse width (PW) is decreased with increasing voltage amplitude (U) until PWmin is reached. The decrease in current and the increase in voltage generate an ineffective current-voltage-ratio in which excess current heats the cathode. An electronic ballast equipped with the algorithm and systems equipped with such ballasts are also disclosed.

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