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    HVACR PURGE SYSTEM WITH ADSORBENT REFRIGERANT SEPARATION
    1.
    发明申请
    HVACR PURGE SYSTEM WITH ADSORBENT REFRIGERANT SEPARATION 有权

    公开(公告)号：US20210341190A1

    公开(公告)日：2021-11-04

    申请号：US17246233

    申请日：2021-04-30

    Applicant: TRANE INTERNATIONAL INC.

    Inventor： Ryan E. Doud ,  Marcos Eric Perez-Blanco ,  Elyse M. Sorenson ,  Abolfazl Maneshi ,  Lee L. Sibik ,  Erica L. Gallant ,  John R. Wold ,  Kenneth J. Schultz

    IPC: F25B43/00 ,  F25B45/00

    Abstract: Purge systems for heating, ventilation, air conditioning, and refrigeration (HVACR) circuits in chillers can use adsorbent and/or membranes to separate refrigerant from non-condensable gases, allowing the non-condensables to be exhausted while the working fluid can be recovered and returned to the HVACR circuit. The purge systems can include one or more separation chambers including either an adsorbent material or a selectively permeable membrane. The selectively permeable membrane can be solubility-based for its selectivity. Optionally, a pusher pump can be upstream of the separation chambers to pressurize the purge gas through the purge system, including in the separation chamber. The purge system can be controlled using a model correlating pressure differentials in the purge system with purge gas conditions such as non-condensable and working fluid concentrations.

    RAPID RESTART CHILLER SYSTEM
    3.
    发明申请
    RAPID RESTART CHILLER SYSTEM 有权

    公开(公告)号：US20220349605A1

    公开(公告)日：2022-11-03

    申请号：US17729747

    申请日：2022-04-26

    Applicant: TRANE INTERNATIONAL INC.

    Inventor： Raphael Gury ,  Lee L. Sibik ,  Philippe Del Marcel Tisserand

    IPC: F24F11/49

    Abstract: Chiller systems can include a controller that is configured to determine whether to restart the chiller in a rapid restart mode or a soft loading restart mode, and methods can include determining the mode for restarting the chiller. The soft loading restart mode controls the chiller to provide a comparatively gradual loading, to avoid overshooting a target temperature. The rapid restart mode more aggressively loads the chiller to return more rapidly to a particular load level. The determination of the restarting mode can be based on characteristics of the interruption of power to the chiller system. In chiller systems, the controller can receive power from an uninterruptable power source to maintain continuity of power. The logic used by the controller can be based on whether or not the controller shares continuity of power with other components of the chiller system.

    System and method for unloading a multi-stage compressor
    4.
    发明授权
    System and method for unloading a multi-stage compressor 有权

    公开(公告)号：US11085684B2

    公开(公告)日：2021-08-10

    申请号：US16454317

    申请日：2019-06-27

    Applicant: TRANE INTERNATIONAL INC.

    Inventor： Lee L. Sibik

    IPC: F25B49/02 ,  F25B41/20 ,  F25B1/10

    Abstract: The unloading of multi-stage compressors may include the introduction of flow from a gas bypass from a condenser into a second-stage inlet duct to induce a swirl in the flow into second stage compression. This unloading may be performed on multi-stage compressors in heating, ventilation, air conditioning and refrigeration (HVACR) circuits that include a gas bypass from a condenser to the second-stage inlet housing of the compressor. The multi-stage compressor may include an impeller inlet duct including a flow straightener receiving fluid flow from the first stage discharge, and one or more channels to introduce gas from the gas bypass into the flow passing through the impeller inlet duct. The flow introduced by the channels may have a direction of flow including a component opposite to the direction of flow of the fluid flow from the first stage discharge via the flow straightener.

    System and method for managing fluid level in a HVAC system
    10.
    发明授权
    System and method for managing fluid level in a HVAC system 有权
    用于管理HVAC系统中液位的系统和方法

    公开(公告)号：US09523523B2

    公开(公告)日：2016-12-20

    申请号：US14055484

    申请日：2013-10-16

    Applicant: TRANE INTERNATIONAL INC.

    Inventor： Lee L. Sibik ,  Benjamin E. Dingel ,  Harry Kenneth Ring

    IPC: F25B49/02 ,  F25B45/00 ,  F25B31/00 ,  F25B40/00

    CPC classification number: F25B49/02 ,  F25B31/004 ,  F25B39/00 ,  F25B39/02 ,  F25B40/00 ,  F25B45/00 ,  F25B2339/024 ,  F25B2339/0242 ,  F25B2339/046 ,  F25B2400/16 ,  F25B2600/2513 ,  F25B2600/2515 ,  F25B2700/04 ,  Y10T137/5762

    Abstract: A system for managing fluid level in an HVAC system includes a spill over tank for an evaporator of the HVAC system. The spill over tank may be configured to receive a refrigerant directed out of the evaporator. The spill over tank may be configured to include an outlet directing refrigerant into the spill over tank, out of the spill over tank and flowing back to a compressor of the HVAC system. The spill over tank may be equipped with a refrigerant level sensor measuring a refrigerant level in the spill over tank. The measured refrigerant level in the spill over tank may be used to control and/or maintain a refrigerant level in the evaporator, and/or to control a return refrigerant flow into the compressor of the HVAC system so as to manage an oil return to the compressor.

    Abstract translation: 用于管理HVAC系统中的液位的系统包括用于HVAC系统的蒸发器的溢出罐。 罐上的溢出物可被配置成接收从蒸发器引出的制冷剂。 罐上的泄漏可以被配置成包括引导制冷剂进入罐中的溢出物的出口，从罐外溢出并流回HVAC系统的压缩机。 溢油罐上可能装有一个制冷剂液位传感器，用于测量溢油槽内的制冷剂水平。 溢出罐中的测量的制冷剂水平可用于控制和/或维持蒸发器中的制冷剂水平，和/或控制回流制冷剂流入HVAC系统的压缩机，以便控制回油到 压缩机。

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