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    Systems and methods for mitigating noise and vibration in a portable oxygen concentrator
    4.
    发明授权
    Systems and methods for mitigating noise and vibration in a portable oxygen concentrator 有权

    公开(公告)号：US12233211B2

    公开(公告)日：2025-02-25

    申请号：US17709214

    申请日：2022-03-30

    Applicant: Inogen, Inc.

    Inventor： Daniel Wayne Chin ,  Peter James Hansen ,  Brenton Alan Taylor

    IPC: B01D53/22 ,  A61M16/00 ,  A61M16/10 ,  B01D53/04

    Abstract: A portable oxygen concentrator includes a compressor and a controller. The compressor includes a motor, at least one chamber, and at least one piston operably coupled to the motor and movable within the at least one chamber. In some embodiments, the controller is configured to: determine actual motor speeds for commutations steps of the motor during a first rotational cycle; determine an average motor speed during the first rotational cycle; determine a voltage pattern based at least on a comparison of the average motor speed during the first rotational cycle and the actual motor speeds for the commutation steps of the motor during the first rotational cycle; and cause the voltage pattern to be applied to the motor during a second rotational cycle to reduce differences between applied motor torque and variable torque load imparted by the at least one piston.

    COMPACT PORTABLE OXYGEN CONCENTRATOR
    5.
    发明申请
    COMPACT PORTABLE OXYGEN CONCENTRATOR 审中-公开

    公开(公告)号：US20200306683A1

    公开(公告)日：2020-10-01

    申请号：US16837754

    申请日：2020-04-01

    Applicant: Inogen, Inc.

    Inventor： Brenton Alan Taylor ,  Peter James Hansen ,  Daniel Wayne Chin ,  Patrick Fitzlindon Burgess ,  Michael Pollak

    IPC: B01D53/04 ,  B01D53/053

    Abstract: An adsorber for a gas concentrator includes an adsorbent material having adsorbent particles and a vessel housing the adsorbent material. The vessel includes a vessel wall having a non-circular cross section and at least one stiffening support. A combination of a thickness of the vessel wall and a stiffness of the stiffening support is sufficient to limit deformation of the vessel wall to at least one of less than 0.1 mm and less than 25% of an average diameter of the adsorbent particles under a pressure swing of at least 30 psi within the vessel.

    COMPACT PORTABLE OXYGEN CONCENTRATOR
    9.
    发明申请
    COMPACT PORTABLE OXYGEN CONCENTRATOR 审中-公开

    公开(公告)号：US20200309115A1

    公开(公告)日：2020-10-01

    申请号：US16837768

    申请日：2020-04-01

    Applicant: Inogen, Inc.

    Inventor： Brenton Alan Taylor ,  Peter James Hansen ,  Daniel Wayne Chin ,  Patrick Fitzlindon Burgess ,  Michael Pollak

    IPC: F04B49/06 ,  H03K3/017 ,  F04D27/00 ,  F04C28/08 ,  A61M16/10 ,  A61M16/00

    Abstract: A method of operating a compressor system includes determining an efficiency of a compressor configured to operate at a plurality of output flow settings, including one or more of measuring, calibrating, calculating, or modeling motor efficiency over a range of supply voltage and pulse width modulation duty cycle combinations, each combination including a supply voltage of a plurality of supply voltages and a pulse width modulation duty cycle of a plurality of pulse width modulation duty cycles. The method further includes selecting a supply voltage and a pulse width modulation duty cycle for use at at least one output flow setting of the plurality of output flow settings based on the determined efficiency of the compressor, generating the selected supply voltage by maintaining, reducing, or increasing a nominal supply voltage, and applying the selected pulse width modulation duty cycle.

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