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    • 9. 发明申请
    • Method and System for Measuring Volume of Fluid Drained from an Air Conditioning Service Unit
    • 从空调服务单元排出的流体体积测量方法和系统
    • US20160169569A1
    • 2016-06-16
    • US14964822
    • 2015-12-10
    • Bosch Automotive Service Solutions Inc.Robert Bosch GmbH
    • Dylan M. LundbergMark W. McMasters
    • F25B45/00G01F1/34
    • F25B45/00F25B2345/002G01F1/007G01F1/34
    • An air conditioning service system includes an accumulator defining an accumulator chamber, a pressure transducer operably connected to the accumulator chamber, a drain valve operably connected to the accumulator chamber, and a controller operably connected to the pressure transducer and the drain valve. The controller includes a processor configured to execute program instructions stored in a memory to determine a volume of liquid drained from the accumulator by: determining a volumetric flow rate of liquid through the drain valve by controlling the drain valve with the controller to an open position for a predetermined period of time; detecting an increased rate of pressure reduction while the drain valve is open; and determining an amount of liquid drained through the drain valve based upon the volumetric flow rate and a total time elapsed between opening the drain valve and the increased rate of pressure reduction.
    • 空调维修系统包括限定蓄能器室的蓄能器,可操作地连接到蓄能器室的压力传感器,可操作地连接到蓄能器室的排放阀以及可操作地连接到压力传感器和排放阀的控制器。 所述控制器包括:处理器,被配置为执行存储在存储器中的程序指令,以通过以下步骤确定从所述蓄液器排出的液体的体积:通过将所述控制器的所述排水阀控制到打开位置来确定通过所述排水阀的液体的体积流量 一段预定的时间; 在泄放阀打开时检测到增加的减压速率; 并且基于体积流量和打开排水阀之间经过的总时间和增加的减压速率来确定通过排水阀排出的液体的量。