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    • 7. 发明授权
    • Capacity control arrangement for a variable capacity wobble plate type
compressor
    • 可变容量摆盘式压缩机的容量控制装置
    • US4946350A
    • 1990-08-07
    • US314386
    • 1989-02-23
    • Shinichi SuzukiHiroshi TanakaAkira Nakamoto
    • Shinichi SuzukiHiroshi TanakaAkira Nakamoto
    • F04B27/14F04B27/18
    • F04B27/1804F04B2027/1813F04B2027/1827F04B2027/1831F04B2027/1854F04B2201/0401F04B2205/04
    • A capacity control arrangement controlling the capacity of a variable capacity wobble plate type compressor of a car air-conditioner driven by an engine of the car employs an engine load sensor, a compressor discharge pressure sensor, a car speed sensor, a compressor crankcase chamber pressure sensor, a miscellaneous air-conditioning data sensor, and a central processing unit to calculate and adjust a duty ratio value at which a solenoid-operated capacity control valve of the compressor is electrically driven. The adjustment of the duty ratio is carried out in such a manner when the engine load exceeds a predetermined value, the solenoid-operated capacity control valve first takes a fully open position to establish the lowest compressor capacity for an adjusted short period of time, and subsequently, takes a reduced opening position to maintain the lowest compressor capacity for as long as the engine load exceeds the predetermined value.
    • 控制由汽车发动机驱动的汽车空调的可变容量摆盘式压缩机的容量的容量控制装置采用发动机负载传感器,压缩机排出压力传感器,轿厢速度传感器,压缩机曲轴箱室压力 传感器,杂项空调数据传感器和中央处理单元,用于计算和调节电动机驱动压缩机的电磁操作容量控制阀的占空比值。 当发动机负荷超过规定值时,进行占空比的调整,电磁操作容量控制阀首先进行完全打开位置,以建立调整后的短时间内的最低压缩机容量, 随后,只要发动机负荷超过预定值,则减小打开位置以维持最低的压缩机容量。
    • 10. 发明申请
    • COMPRESSOR DISCHARGE TEMPERATURE MONITOR AND ALARM
    • 压缩机排放温度监测和报警
    • WO2012151285A1
    • 2012-11-08
    • PCT/US2012/036134
    • 2012-05-02
    • HALL, William, Guston
    • HALL, William, Guston
    • F04B49/10
    • F04B49/22F04B49/065F04B2201/0401F04B2205/03F04B2205/11F04B2207/70
    • A more practical, cost effective and improved compressor protection method and system that is capable of continuously establishing compressor discharge temperature set points based on actual in-service conditions and detecting damaged compressor valves for a given cylinder at each stage of compression. The method and system utilize sensors configured to monitor process property parameters at the inlet section and outlet section of a compressor stage. The monitored process property parameters include temperature and pressure. The sensors generate monitored signals corresponding to the process property parameters. The method and system utilize a controller configured to receive and process these monitored signals. The controller executes a control logic that uses the monitored signals to either estimate or calculate compressor valve pressure losses for determining internal cylinder pressures, which are used to calculate compressor discharge temperature set points.
    • 一种更加实用,成本效益和改进的压缩机保护方法和系统,其能够基于实际的在役条件连续建立压缩机排放温度设定点,并在每个压缩阶段检测给定气缸的损坏的压缩机阀。 该方法和系统利用被配置为监测压缩机级的入口部分和出口部分处理特性参数的传感器。 监测的过程属性参数包括温度和压力。 传感器产生对应于过程属性参数的监控信号。 该方法和系统利用被配置为接收和处理这些监测信号的控制器。 控制器执行一个控制逻辑,该控制逻辑使用监控的信号来估计或计算用于确定内部气缸压力的压缩机压力损失,这些压力用于计算压缩机排放温度设定值。