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公开(公告)号：US12078177B2
公开(公告)日：2024-09-03
申请号：US17040621
申请日：2019-03-22
申请人： Xylem Europe GmbH
发明人： Staffan Olsson , Måns Bergsten , Gert Hallgren
CPC分类号： F04D13/08 , F04D13/0686 , F04D15/00 , F04D15/0088 , F04D29/18
摘要： A submersible electric machine for transporting a liquid, the machine having a hydraulic unit with an impeller, and a drive unit with a housing defining a motor compartment having an electric motor inside. A drive shaft is connected to the electric motor, and extends from the electric motor to the hydraulic unit to a connection with the impeller. A top unit includes a housing defining an electronics chamber separated from the motor compartment by a dividing structural wall. The electronics chamber has a metal partition, having a natural frequency equal to or more than 500 Hz, connected to the top unit housing. A vibration sensor is directly or indirectly connected to the metal partition and monitors vibrations in at least two dimensions at frequencies ranging up to 500 Hz.
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公开(公告)号：US20210115927A1
公开(公告)日：2021-04-22
申请号：US17040621
申请日：2019-03-22
申请人： Xylem Europe GmbH
发明人： Staffan Olsson , Måns Bergsten , Gert Hallgren
摘要： A submersible electric machine for transporting a liquid, the machine having a hydraulic unit with an impeller, and a drive unit with a housing defining a motor compartment having an electric motor inside. A drive shaft is connected to the electric motor, and extends from the electric motor to the hydraulic unit to a connection with the impeller. A top unit includes a housing defining an electronics chamber separated from the motor compartment by a dividing structural wall. The electronics chamber has a metal partition, having a natural frequency equal to or more than 500 Hz, connected to the top unit housing. A vibration sensor is directly or indirectly connected to the metal partition and monitors vibrations in at least two dimensions at frequencies ranging up to 500 Hz.
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