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    Systems and methods with variable mitigation thresholds
    11.
    发明授权
    Systems and methods with variable mitigation thresholds 有权

    公开(公告)号：US11609004B2

    公开(公告)日：2023-03-21

    申请号：US17048982

    申请日：2019-04-19

    Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.

    Inventor： Stuart K. Morgan ,  Hung Pham ,  Brian R. Butler

    IPC: F24F8/00 ,  F24F11/62 ,  F24F11/64 ,  F24F11/59 ,  G05B17/02 ,  F24F110/64 ,  F24F110/70 ,  F24F110/66

    Abstract: An indoor air quality (IAQ) system for a building includes an IAQ sensor that is located within the building and that is configured to measure an IAQ parameter. The IAQ parameter is one of: an amount of particulate of at least a predetermined size present in air; an amount of volatile organic compounds (VOCs) present in air; and an amount of carbon dioxide present in air. A mitigation module is configured to: selectively turn on a mitigation device based on a comparison of the IAQ parameter with a first ON threshold and a second ON threshold; and selectively turn off the mitigation device based on a comparison of the IAQ parameter with an OFF threshold. A clean module is configured to determine a clean value for the IAQ parameter. A thresholds module is configured to, based on the clean value, determine the first ON threshold and the OFF threshold.

    Systems and methods with variable mitigation thresholds
    13.
    发明授权
    Systems and methods with variable mitigation thresholds 有权

    公开(公告)号：US11486593B2

    公开(公告)日：2022-11-01

    申请号：US17078019

    申请日：2020-10-22

    Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.

    Inventor： Stuart K. Morgan ,  Hung Pham ,  Brian R. Butler

    IPC: F24F3/16 ,  F24F3/14 ,  F24F7/00 ,  F24F11/30 ,  G05B19/042 ,  F24F11/64 ,  F24F110/10 ,  F24F110/66 ,  F24F110/70

    Abstract: An indoor air quality (IAQ) system for a building includes an IAQ sensor that is located within the building and that is configured to measure an IAQ parameter. The IAQ parameter is one of: an amount of particulate of at least a predetermined size present in air; an amount of volatile organic compounds (VOCs) present in air; and an amount of carbon dioxide present in air. A mitigation module is configured to: selectively turn on a mitigation device based on a comparison of the IAQ parameter with a first ON threshold and a second ON threshold; and selectively turn off the mitigation device based on a comparison of the IAQ parameter with an OFF threshold. A clean module is configured to determine a clean value for the IAQ parameter. A thresholds module is configured to, based on the clean value, determine the first ON threshold and the OFF threshold.

    Particulate-matter-size-based fan control system
    14.
    发明授权
    Particulate-matter-size-based fan control system 有权

    公开(公告)号：US11371726B2

    公开(公告)日：2022-06-28

    申请号：US17078031

    申请日：2020-10-22

    Applicant: Emerson Climate Technologies, Inc.

    Inventor： Hung M. Pham ,  Stuart K. Morgan ,  Brian R. Butler

    IPC: F24F3/16 ,  B01D53/30 ,  F24F3/14 ,  F24F110/64

    Abstract: A control system for a mitigation device includes a processor and a computer-readable medium that includes instructions executable by the processor. The instructions include monitoring a first measured particulate matter (PM) level of a conditioned space. The first measured PM level includes PM having a first range of sizes. The instructions further include monitoring a second measured PM level of the conditioned space. The second measured PM level includes PM having a second range of sizes. The first and second ranges are different but overlapping. The instructions also include asserting, in response to the first measured PM level being greater than a first predetermined threshold, an activation signal. The activation signal forces operation of a fan of the mitigation device. The instructions include asserting, in response to the second measured PM level being greater than a predetermined percentage of the first measured PM level, the activation signal.

    Compressor having capacity modulation system
    18.
    发明授权
    Compressor having capacity modulation system 有权

    公开(公告)号：US10087936B2

    公开(公告)日：2018-10-02

    申请号：US15646654

    申请日：2017-07-11

    Applicant: Emerson Climate Technologies, Inc.

    Inventor： Dennis D. Pax ,  Stephen Barry Tummino ,  Troy R. Brostrom ,  Anthony Joseph Dahlinghaus ,  Brian R. Butler

    IPC: F04C18/00 ,  F04C28/24 ,  F04C18/02 ,  F04C27/00

    Abstract: A compressor may include first and second scrolls, a seal assembly and a valve ring. The first scroll may include a first end plate having a discharge passage, a modulation port, and a biasing passage. The modulation port may be in communication with a first pocket formed between spiral wraps of the first and second scrolls. The biasing passage may be in communication with a second pocket formed between spiral wraps of the first and second scrolls. The modulation valve ring is axially displaceable relative to the seal assembly and the first scroll between first and second positions. The valve ring may abut an end plate of the first scroll and close the modulation port when in the first position. The valve ring may abut an axially-facing surface of the seal assembly and is spaced apart from the end plate to open the modulation port when in the second position.

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