Capacity modulated scroll compressor

    公开(公告)号:US09850903B2

    公开(公告)日:2017-12-26

    申请号:US14958524

    申请日:2015-12-03

    Abstract: A system includes a compressor with an orbiting scroll member having a first end plate and a first spiral wrap. A non-orbiting scroll member has a second end plate and a second spiral wrap, the second spiral wrap forming a meshing engagement with the first spiral wrap to create a plurality of compression chambers between a suction port and a discharge port. A first port in communication with a first of the plurality of compression chambers selectively injects an injection fluid into the first of the plurality of compression chambers to increase a compressor capacity and selectively leaks a first compressed fluid from the first of the plurality of compression chambers to reduce the compressor capacity. A second port in communication with a second of the plurality of compression chambers selectively leaks a second compressed fluid from the second of the plurality of compression chambers to reduce a compressor capacity.

    Capacity modulated scroll compressor
    54.
    发明授权
    Capacity modulated scroll compressor 有权
    容量调节涡旋压缩机

    公开(公告)号:US09541084B2

    公开(公告)日:2017-01-10

    申请号:US14173983

    申请日:2014-02-06

    Abstract: A capacity modulation assembly is provided and may include a control valve and a first line extending between the control valve and a suction pressure region disposed within a compressor shell, whereby the suction pressure region is in communication with a suction inlet gas fitting extending through a shell of a compressor. The capacity modulation assembly may additionally include a second line extending between the control valve and an intermediate pressure region disposed within the compressor shell, whereby the intermediate pressure region is in communication with compression pockets defined between an orbiting scroll and a non-orbiting scroll.

    Abstract translation: 提供容量调节组件,并且可以包括控制阀和在控制阀和设置在压缩机壳体内的吸入压力区域之间延伸的第一管线,由此吸入压力区域与延伸穿过壳体的吸入口气体配件连通 的压缩机。 容量调节组件可以另外包括在控制阀和设置在压缩机壳体内的中间压力区域之间延伸的第二管线,由此中间压力区域与限定在绕动涡旋件和非绕动涡旋件之间的压缩空间连通。

    Systems and methods for determining startup pressure ratio for dynamic compressors

    公开(公告)号:US12196470B2

    公开(公告)日:2025-01-14

    申请号:US17804317

    申请日:2022-05-27

    Abstract: A controller for a system having an evaporator, a condenser, and a dynamic compressor includes a processor and a memory, which stores instructions that program the processor to determine a first heat transfer fluid temperature at a first heat transfer fluid path of the evaporator, determine a first pressure at a first working fluid path based on the first heat transfer fluid temperature, determine a second heat transfer fluid temperature at a second heat transfer fluid path of the condenser, determine a second pressure at a second working fluid path based on the second heat transfer fluid temperature, calculate a pressure ratio of the compressor from the first and second pressures, determine a speed setpoint of the compressor based on the pressure ratio, and operate the compressor at the speed setpoint to compress a working fluid until a condition is met.

    SYSTEMS AND METHODS FOR DETERMINING STARTUP PRESSURE RATIO FOR DYNAMIC COMPRESSORS

    公开(公告)号:US20230384012A1

    公开(公告)日:2023-11-30

    申请号:US17804317

    申请日:2022-05-27

    CPC classification number: F25B49/022 F04D17/10 F04D27/02

    Abstract: A controller for a system having an evaporator, a condenser, and a dynamic compressor includes a processor and a memory, which stores instructions that program the processor to determine a first heat transfer fluid temperature at a first heat transfer fluid path of the evaporator, determine a first pressure at a first working fluid path based on the first heat transfer fluid temperature, determine a second heat transfer fluid temperature at a second heat transfer fluid path of the condenser, determine a second pressure at a second working fluid path based on the second heat transfer fluid temperature, calculate a pressure ratio of the compressor from the first and second pressures, determine a speed setpoint of the compressor based on the pressure ratio, and operate the compressor at the speed setpoint to compress a working fluid until a condition is met.

    FOIL BEARING ASSEMBLY INCLUDING SEGMENTED INNER FOIL ASSEMBLY AND COMPRESSOR INCLUDING SAME

    公开(公告)号:US20220243762A1

    公开(公告)日:2022-08-04

    申请号:US17167611

    申请日:2021-02-04

    Abstract: A bearing system includes a bearing housing and a foil bearing assembly. The bearing housing includes a sleeve that defines a cylindrical bore and includes at least one bearing assembly locking feature, and a mounting structure. The foil bearing assembly includes an outer foil assembly, an inner foil assembly, and a bump foil assembly positioned between the outer foil assembly and the inner foil assembly. The outer foil assembly includes at least one outer foil pad that extends circumferentially from a first end including a bearing retention feature to a second end. The bearing retention feature is cooperatively engaged with the at least one bearing assembly locking feature. The inner foil assembly includes a plurality of circumferentially-spaced inner foil pads. Each inner foil pad extends circumferentially from a tab to a free end. At least one inner foil pad is welded to the outer foil assembly along the tab.

    COOLING SYSTEM FOR CENTRIFUGAL COMPRESSOR AND REFRIGERATION SYSTEM INCLUDING SAME

    公开(公告)号:US20220220976A1

    公开(公告)日:2022-07-14

    申请号:US17248166

    申请日:2021-01-12

    Abstract: A cooling system for a compressor includes a coolant supply line, a coolant return line, a temperature sensor connected to the coolant return line to detect at least one of a temperature of the coolant return line and a temperature of coolant within the coolant return line, and a controller. The coolant supply line includes a coolant control valve, and is connectable to a housing of the compressor to deliver coolant to at least one of a plurality of coolant flow channels defined therein. The coolant return line is connectable to the compressor housing to receive coolant from the coolant flow channels and return coolant to a low-pressure side of the compressor. The controller is configured to control the coolant control valve based on the temperature detected by the temperature sensor to control the supply of coolant through the coolant supply line.

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