Expansion valve control element for air conditioning system
    1.
    发明授权
    Expansion valve control element for air conditioning system 失效
    膨胀阀控制元件空调系统

    公开(公告)号:US5460349A

    公开(公告)日:1995-10-24

    申请号:US154674

    申请日:1993-11-18

    摘要: An expansion valve (10) for heat transfer systems such as an air conditioning system, includes a control element (20) for controlling the flow rate of working fluid through the valve. The control element has a stem member (28) and movable member (42) movable on the stem member. Openings (38) to an internal passage (30) in the stem member are regulated by positioning the movable member to achieve regulated flow rate of refrigerant material through the valve. The movable member of the control element is moved by a plunger (24) of a proportional solenoid (22). The proportional solenoid has a magnetic flux circuit including a low permeance isolation tube (62) surrounding the plunger, which enables removal of the coil (76) and frame (78) of the solenoid from the valve. The solenoid further includes a variable permeance flux washer (69) the flux through which varies with plunger position, which is disposed from a gap (82) which provides an area of magnetic saturation. The proportional solenoid produces force/displacement characteristics which enable precise control of the control element and accurate regulation of the refrigerant flow rate through the valve.

    摘要翻译: 用于诸如空调系统的传热系统的膨胀阀(10)包括用于控制通过阀的工作流体的流量的控制元件(20)。 控制元件具有杆构件(28)和可在杆构件上移动的可移动构件(42)。 通过定位可动构件来调节杆构件中的内部通道(30)的开口(38),以实现制冷剂材料通过阀门的调节的流量。 控制元件的可动构件由比例螺线管(22)的柱塞(24)移动。 比例螺线管具有包括围绕柱塞的低磁导隔离管(62)的磁通电路,其能够从阀门去除螺线管的线圈(76)和框架(78)。 螺线管还包括可变磁通通量垫圈(69),通过该磁通量随着柱塞位置而变化的磁通,该磁通量从提供磁饱和面积的间隙(82)设置。 比例螺线管产生力/位移特性,可以精确控制控制元件并精确调节通过阀门的制冷剂流量。

    Expansion valve for air conditioning system with proportional solenoid
    2.
    发明授权
    Expansion valve for air conditioning system with proportional solenoid 失效
    带比例电磁阀的空调系统膨胀阀

    公开(公告)号:US5295656A

    公开(公告)日:1994-03-22

    申请号:US961567

    申请日:1992-10-15

    IPC分类号: F16K31/06 F25B41/06 H01F7/16

    摘要: An expansion valve (10) for heat transfer systems such as an air conditioning system, includes a control element (20) for controlling the flow rate of working fluid through the valve. The control element has a stem member (28) and movable member (42) movable on the stem member. Openings (38) to an internal passage (30) in the stem member are regulated by positioning the movable member to achieve regulated flow rate of refrigerant material through the valve. The movable member of the control element is moved by a plunger (24) of a proportional solenoid (22). The proportional solenoid has a magnetic flux circuit including a low permeance isolation tube (62) surrounding the plunger, which enables removal of the coil (76) and frame (78) of the solenoid from the valve. The solenoid further includes a variable permeance flux washer (69) the flux through which varies with plunger position, which is disposed from a gap (82) which provides an area of magnetic saturation. The proportional solenoid produces force/displacement characteristics which enable precise control of the control element and accurate regulation of the refrigerant flow rate through the valve.

    摘要翻译: 用于诸如空调系统的传热系统的膨胀阀(10)包括用于控制通过阀的工作流体的流量的控制元件(20)。 控制元件具有杆构件(28)和可在杆构件上移动的可移动构件(42)。 通过定位可动构件来调节杆构件中的内部通道(30)的开口(38),以实现制冷剂材料通过阀门的调节的流量。 控制元件的可动构件由比例螺线管(22)的柱塞(24)移动。 比例螺线管具有包括围绕柱塞的低磁导隔离管(62)的磁通电路,其能够从阀门去除螺线管的线圈(76)和框架(78)。 螺线管还包括可变磁通通量垫圈(69),通过该磁通量随着柱塞位置而变化的磁通,该磁通从提供磁饱和面积的间隙(82)设置。 比例螺线管产生力/位移特性,可以精确控制控制元件并精确调节通过阀门的制冷剂流量。

    Expansion valve for air conditioning system with proportional solenoid
    3.
    发明授权
    Expansion valve for air conditioning system with proportional solenoid 失效
    带比例电磁阀的空调系统膨胀阀

    公开(公告)号:US5390897A

    公开(公告)日:1995-02-21

    申请号:US161000

    申请日:1993-12-03

    IPC分类号: F16K31/06 F25B41/06 H01F7/16

    摘要: An expansion valve (10) for heat transfer systems such as an air conditioning system, includes a control element (20) for controlling the flow rate of working fluid through the valve. The control element has a stem member (28) and movable member (42) movable on the stem member. Openings (38) to an internal passage (30) in the stem member are regulated by positioning the movable member to achieve regulated flow rate of refrigerant material through the valve. The movable member of the control element is moved by a plunger (24) of a proportional solenoid (22). The proportional solenoid has a magnetic flux circuit including a low permeance isolation tube (62) surrounding the plunger, which enables removal of the coil (76) and frame (78) of the solenoid from the valve. The solenoid further includes a variable permeance flux washer (69) the flux through which varies with plunger position, which is disposed from a gap (82) which provides an area of magnetic saturation. The proportional solenoid produces force/displacement characteristics which enable precise control of the control element and accurate regulation of the refrigerant flow rate through the valve.

    摘要翻译: 用于诸如空调系统的传热系统的膨胀阀(10)包括用于控制通过阀的工作流体的流量的控制元件(20)。 控制元件具有杆构件(28)和可在杆构件上移动的可移动构件(42)。 通过定位可动构件来调节杆构件中的内部通道(30)的开口(38),以实现制冷剂材料通过阀门的调节的流量。 控制元件的可动构件由比例螺线管(22)的柱塞(24)移动。 比例螺线管具有包括围绕柱塞的低磁导隔离管(62)的磁通电路,其能够从阀门去除螺线管的线圈(76)和框架(78)。 螺线管还包括可变磁通通量垫圈(69),通过该磁通量随着柱塞位置而变化的磁通,该磁通从提供磁饱和面积的间隙(82)设置。 比例螺线管产生力/位移特性,可以精确控制控制元件并精确调节通过阀门的制冷剂流量。

    Apparatus and method for mass flow control of a working fluid
    8.
    发明授权
    Apparatus and method for mass flow control of a working fluid 失效
    工作流体质量流量控制的装置和方法

    公开(公告)号:US5289692A

    公开(公告)日:1994-03-01

    申请号:US5606

    申请日:1993-01-19

    摘要: A mass flow control apparatus and method for use in combination with a heat transfer system having a compressor, condenser, expansion valve, evaporator and working fluid in a s fluid circuit. The mass flow is controlled using a quality sensor for the working fluid exiting the evaporator, and a high side pressure sensor. A control circuit is provided that monitors the quality sensor and the high side pressure sensor, and controls operation of the compressor, condenser fan and valve in response thereto. A flow reduction mode is used to reduce high side pressure at the valve inlet without excessive compressor cycling by changing the quality sensor setpoint when the high side pressure exceeds the condenser fan turn-on pressure but is less than the compressor disengage pressure.

    摘要翻译: 一种与流体回路中具有压缩机,冷凝器,膨胀阀,蒸发器和工作流体的传热系统组合使用的质量流量控制装置和方法。 使用用于离开蒸发器的工作流体的质量传感器和高侧压力传感器来控制质量流量。 提供了一种控制电路,其监测质量传感器和高侧压力传感器,并且响应于此控制压缩机,冷凝器风扇和阀的操作。 当高侧压力超过冷凝器风扇接通压力但小于压缩机脱离压力时,通过改变质量传感器设定值,使用流量减小模式来减小阀入口处的高侧压力而不需要过多的压缩机循环。