Systems and methods for determining duct leakage in a climate control system

    公开(公告)号:US12066357B1

    公开(公告)日:2024-08-20

    申请号:US18047206

    申请日:2022-10-17

    发明人: Wayne N. Kraft

    IPC分类号: G01M3/28 F24F11/32

    CPC分类号: G01M3/2807 F24F11/32

    摘要: Methods and related systems for operating a climate control system for an indoor space are disclosed. In an embodiment, the method includes operating an indoor fan of the climate control system to rotate an impeller of the indoor fan in a reverse rotational direction opposite a nominal rotational direction of the impeller. Additionally, the method includes determining an airflow of the indoor fan when the impeller of the indoor fan is rotated in the reverse rotational direction. Further, the method includes determining a duct leakage rate associated with at least one duct of the climate control system based on the determined airflow, wherein the at least one duct is sealed-off at an end thereof.

    Scroll compressor with economizer injection

    公开(公告)号:US12012963B2

    公开(公告)日:2024-06-18

    申请号:US17850138

    申请日:2022-06-27

    IPC分类号: F04C29/00 F04C18/02 F25B31/02

    摘要: A scroll compressor includes a compressor housing, an orbiting scroll member, a non-orbiting scroll member, an economizer injection inlet, and a discharge outlet. The orbiting scroll member and the non-orbiting scroll member are disposed within the compressor housing. The orbiting scroll member and the non-orbiting scroll member are intermeshed thereby forming a compression chamber within the compressor housing. The non-orbiting scroll includes at least one compression inlet port. An economizer injection inlet is formed through the compressor housing and in fluid communication with the compression chamber via the at least one compression inlet port. The discharge outlet is in fluid communication with the compression chamber.

    Refrigerant recovery and repurposing

    公开(公告)号:US11976858B2

    公开(公告)日:2024-05-07

    申请号:US17453128

    申请日:2021-11-01

    IPC分类号: F25B43/00 F25B45/00

    摘要: A method of converting a refrigerant includes recovering a refrigerant from a refrigeration unit with an evacuation pump and containing the recovered refrigerant in a container. The method also includes converting the recovered refrigerant. The converted refrigerant is different from the recovered refrigerant. A system for converting a refrigerant includes an evacuation pump, a container, and one or more refrigerant containers. The evacuation pump and container are configured to recover a refrigerant from a refrigeration unit. The one or more refrigerant containers deliver one or more refrigerant components into the container to convert the recovered refrigerant.

    Systems and methods for refrigerant leak detection in a climate control system

    公开(公告)号:US11971183B2

    公开(公告)日:2024-04-30

    申请号:US17644310

    申请日:2021-12-14

    摘要: Refrigerant leak detection systems as well as related climate control systems and methods are disclosed herein. In an embodiment, the refrigerant leak detection system includes a transmitter configured to emit an acoustic wave, and a receiver configured to detect the acoustic wave. The transmitter and the receiver are mounted within a space outside a conduit configured to carry a refrigerant of a climate control system. In addition, the refrigerant leak detection system includes a controller coupled to the transmitter and the receiver. The controller is configured to: determine a time of flight for the acoustic wave between the transmitter and the receiver, and determine whether a refrigerant is present in the space based on the time of flight.

    Thermal storage device for climate control system

    公开(公告)号:US11959690B2

    公开(公告)日:2024-04-16

    申请号:US17554515

    申请日:2021-12-17

    发明人: Jason T. LeRoy

    摘要: A heat pump includes a compressor, a metering device, a first heat exchanger, a second heat exchanger, a first fan, a second fan, and a refrigerant circuit between the first heat exchanger and the second heat exchanger. A thermal storage device coupled to the refrigerant circuit is configured to store thermal energy when the refrigerant fluid is above a threshold temperature and discharge thermal energy when the refrigerant fluid is below the threshold temperature. The heat pump is operated in a heating mode in which heat is transferred from the refrigerant fluid at the first heat exchanger and the temperature of the refrigerant fluid at the thermal storage device is above the threshold temperature, and a defrost mode in which heat is transferred to the refrigerant fluid at the first heat exchanger and the temperature of the refrigerant fluid at the thermal storage device is below the threshold temperature.