Controller for variable displacement compressor
    3.
    发明授权
    Controller for variable displacement compressor 失效
    变排量压缩机控制器

    公开(公告)号:US06389824B2

    公开(公告)日:2002-05-21

    申请号:US09777523

    申请日:2001-02-06

    IPC分类号: F04B126

    摘要: A controller controls a displacement of a compressor which is installed in a refrigerant circuit of an air-conditioning system. The controller has a pressure difference detector. An air conditioning switch turns the air conditioning system on. A temperature detector detects the temperature in a compartment. A control valve controls the displacement of the compressor such that the pressure difference detected by the pressure difference detector approaches a target value. A computer determines the target value. The computer changes the target value, depending on the detected temperature. The computer limits the target value to a target value limit. After a predetermined time expires from when the air conditioning switch is turned on, the computer changes the limit. This permits the displacement of the compressor to be promptly and reliably changed.

    摘要翻译: 控制器控制安装在空调系统的制冷剂回路中的压缩机的排量。 控制器具有压力差检测器。 空调开关打开空调系统。 温度检测器检测隔室中的温度。 控制阀控制压缩机的位移,使得由压力差检测器检测到的压差接近目标值。 计算机确定目标值。 计算机根据检测到的温度更改目标值。 计算机将目标值限制为目标值限制。 在空调开关打开一段预定时间后,计算机改变极限。 这允许压缩机的位移被迅速且可靠地改变。

    Displacement control apparatus and method for variable displacement compressor
    6.
    发明授权
    Displacement control apparatus and method for variable displacement compressor 失效
    变排量压缩机的位移控制装置及方法

    公开(公告)号:US06385979B2

    公开(公告)日:2002-05-14

    申请号:US09745092

    申请日:2000-12-20

    IPC分类号: B60H132

    摘要: A control valve is located in a variable displacement compressor used in a refrigerant circuit. The control valve operates such that the pressure difference between two pressure monitoring points in the refrigerant circuit seeks a predetermined target value. A controller determines the target value of the pressure difference in accordance with external information that represents the required cooling performance. The target value of the pressure difference is represented by a duty ratio applied to the control valve. When the acceleration pedal is pressed beyond a predetermined level, the controller limits the duty ratio. Therefore, the compressor torque does not hinder quick vehicle acceleration. Also, the cooling performance is not lowered unless it is necessary.

    摘要翻译: 控制阀位于用于制冷剂回路的可变排量压缩机中​​。 控制阀的操作使得制冷剂回路中的两个压力监测点之间的压力差寻找预定的目标值。 控制器根据表示所需冷却性能的外部信息确定压力差的目标值。 压力差的目标值由施加到控制阀的占空比表示。 当加速踏板被按压超过预定水平时,控制器限制占空比。 因此,压缩机扭矩不会妨碍车辆加速。 此外,除非有必要,否则冷却性能不会降低。

    Control valve in variable displacement compressor
    7.
    发明授权
    Control valve in variable displacement compressor 失效
    变排量压缩机中​​的控制阀

    公开(公告)号:US06382926B2

    公开(公告)日:2002-05-07

    申请号:US09725537

    申请日:2000-11-29

    IPC分类号: F04B126

    摘要: A control valve for a variable displacement compressor in refrigerant circuit permits the compressor displacement to be accurately controlled regardless of the thermal load on an evaporator. The refrigerant circuit includes a high pressure pipe, which extends between a discharge chamber of the compressor and a condenser. A first pressure monitoring point is located in the discharge chamber. A second pressure monitoring point is located in the high pressure pipe. A supply passage connects the second pressure monitoring point with a crank chamber of the compressor. The control valve is located in the supply passage and adjusts the opening size of the supply passage in accordance with the difference between the pressure at the first pressure monitoring point and the pressure at the second pressure monitoring point. The control valve includes a solenoid for determining the target value of the pressure difference. The control valve operates to maintain the determined target value.

    摘要翻译: 用于制冷剂回路中的可变排量压缩机的控制阀允许压缩机排量被精确地控制,而与蒸发器上的热负荷无关。 制冷剂回路包括在压缩机的排出室和冷凝器之间延伸的高压管。 第一个压力监测点位于放电室中。 第二个压力监测点位于高压管道中。 供给通道将第二压力监测点与压缩机的曲柄室连接。 控制阀位于供给通道中,并根据第一压力监测点的压力与第二压力监测点的压力之差来调节供油通道的开度。 控制阀包括用于确定压差的目标值的螺线管。 控制阀操作以维持所确定的目标值。

    Air conditioner and displacement control valve for variable displacement compressor
    9.
    发明授权
    Air conditioner and displacement control valve for variable displacement compressor 失效
    变排量压缩机的空调和排量控制阀

    公开(公告)号:US06508071B2

    公开(公告)日:2003-01-21

    申请号:US09875739

    申请日:2001-06-06

    IPC分类号: F25B100

    摘要: A control valve is located in a variable displacement compressor incorporated in a refrigerant circuit. The control valve controls the displacement of the compressor in accordance with a pressure difference between a first pressure monitoring point and a second pressure monitoring point, which are located in the refrigerant circuit, such that the pressure difference seeks a predetermined target value. An adjusting valve, which is a variable throttle valve, is located in a section of the refrigerant circuit between the first and second pressure monitoring points. The adjusting valve adjusts the restriction amount of the refrigerant in relation to the refrigerant flow in the refrigerant circuit. The compressor displacement is thus optimally controlled.

    摘要翻译: 控制阀位于并入制冷剂回路中的可变排量压缩机中​​。 控制阀根据位于制冷剂回路中的第一压力监测点和第二压力监测点之间的压力差来控制压缩机的位移,使得压差寻求预定的目标值。 作为可变节流阀的调节阀位于第一和第二压力监测点之间的制冷剂回路的一部分中。 调节阀调节制冷剂相对于制冷剂回路中的制冷剂流量的限制量。 因此压缩机排量得到最佳控制。

    Control valve for variable displacement compressor
    10.
    发明授权
    Control valve for variable displacement compressor 有权
    变排量压缩机控制阀

    公开(公告)号:US06447258B2

    公开(公告)日:2002-09-10

    申请号:US09816635

    申请日:2001-03-23

    IPC分类号: F04B126

    摘要: A valve body adjusts opening of a supply passage in response to the position in a valve chamber. A pressure-sensitive member is moved in accordance with the pressure difference between two pressure monitoring points, which are located in an external refrigerant circuit. The movement of the pressure-sensitive member affects the position of the valve body such that the compressor displacement is changed to reduce fluctuations in the pressure difference. A solenoid changes force applied to the valve body so that a set pressure difference, which is a reference value for changing the position of the valve body by the pressure-sensitive member, is changed.

    摘要翻译: 阀体响应于阀室中的位置来调节供给通道的开口。 压敏构件根据位于外部制冷剂回路中的两个压力监测点之间的压差而移动。 压敏构件的运动影响阀体的位置,使得压缩机位移被改变以减小压力差的波动。 螺线管改变施加到阀体的力,从而改变作为用于改变压力敏感部件的阀体位置的参考值的设定压力差。