Air conditioner and displacement control valve for variable displacement compressor
    1.
    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。

    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
    4.
    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 for variable displacement compressor
    6.
    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。

    Displacement control valve for variable displacement compressor
    8.
    发明授权
    Displacement control valve for variable displacement compressor 有权
    可变排量压缩机位移控制阀

    公开(公告)号:US06257836B1

    公开(公告)日:2001-07-10

    申请号:US09493762

    申请日:2000-01-28

    IPC分类号: F04B126

    摘要: A displacement control valve for a compressor is provided. When current to a coil is stopped due to, for example, a broken wire, the control valve prevents the load acting on a variable displacement compressor from becoming excessive. A suction chamber is connected to a crank chamber by a control passage. A bellows actuates a valve body in accordance with the pressure in a suction chamber thereby regulating the opening size of the control passage. The compressor displacement is varied accordingly. A solenoid varies the attraction between a plunger and a fixed core in accordance with the level of current supplied to a coil thereby changing a target pressure. The bellows is actuated based on the target pressure. The solenoid increases the target pressure as the current to the coil is decreased. When the current to the coil is stopped, the solenoid maximizes the target pressure.

    摘要翻译: 提供了一种用于压缩机的排量控制阀。 当由于例如断丝导致线圈的电流停止时,控制阀防止作用在可变排量压缩机上的负载变得过大。 吸入室通过控制通道连接到曲柄室。 波纹管根据吸入室内的压力来驱动阀体,由此调节控制通道的开口尺寸。 压缩机排量相应变化。 螺线管根据提供给线圈的电流水平改变柱塞和固定铁芯之间的吸引力,从而改变目标压力。 波纹管基于目标压力启动。 当线圈的电流减小时,螺线管增加了目标压力。 当线圈的电流停止时,螺线管使目标压力最大化。

    Compressor having check valve and oil separator unit
    9.
    发明授权
    Compressor having check valve and oil separator unit 失效
    具有止回阀和分油器的压缩机

    公开(公告)号:US06511297B2

    公开(公告)日:2003-01-28

    申请号:US09886170

    申请日:2001-06-21

    IPC分类号: F04B126

    CPC分类号: F04B27/109

    摘要: Valve and separator unit is mounted to a housing of a compressor. The unit includes a check valve for preventing the reverse flow of refrigerant, and an oil separator for separating a mist of lubricating oil contained in the refrigerant from the refrigerant. Separated lubricating oil is introduced into a crank chamber via an oil passage, and the separated refrigerant is directed to the check valve, which prevents of the reverse flow of the refrigerant from the external refrigerant circuit to the discharge chamber.

    摘要翻译: 阀和分离器单元安装到压缩机的壳体。 该单元包括用于防止制冷剂反向流动的止回阀和用于从制冷剂中分离制冷剂中所含的润滑油雾的油分离器。 分离的润滑油通过油路被引入曲柄室,并且分离的制冷剂被引导到止回阀,从而防止制冷剂从外部制冷剂回路逆流到排出室。

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

    公开(公告)号:US06510702B2

    公开(公告)日:2003-01-28

    申请号:US09836402

    申请日:2001-04-17

    IPC分类号: F25B100

    摘要: A control valve includes a valve chamber. A valve body is located in the valve chamber. A first regulator regulates the movement of the valve body. A first spring urges the valve body towards the first regulator. A sensing member divides a sensing chamber into a first pressure chamber and a second pressure chamber. The sensing member moves in accordance with the pressure difference. A regulator surface regulates the movement of the sensing member. A temporary chamber is formed between the sensing member and the valve body when the valve body is disconnected from the sensing member. The temporary chamber is connected to the second pressure chamber. A second spring urges the sensing member toward the regulator surface. An actuator applies a force to the valve body that is opposite to the force of the first spring and that of the second spring in accordance with commands from an external controller.

    摘要翻译: 控制阀包括阀室。 阀体位于阀室中。 第一个调节器调节阀体的运动。 第一弹簧促使阀体朝向第一调节器。 感测构件将感测室分成第一压力室和第二压力室。 感测构件根据压力差移动。 调节器表面调节感测构件的运动。 当阀体与感测构件断开时,在感测构件和阀体之间形成临时腔室。 临时室被连接到第二压力室。 第二弹簧将感测构件推向调节器表面。 执行器根据来自外部控制器的命令向阀体施加与第一弹簧和第二弹簧的力相反的力。