Air conditioner and control valve in variable displacement compressor
    1.
    发明授权
    Air conditioner and control valve in variable displacement compressor 失效
    变排量压缩机空调和控制阀

    公开(公告)号:US06457319B1

    公开(公告)日:2002-10-01

    申请号:US09717804

    申请日:2000-11-21

    IPC分类号: F25B100

    摘要: A control valve controls the pressure in a crank chamber of a compressor to change the displacement of the compressor. The compressor includes a discharge chamber, a suction chamber and a supply passage, which connects the discharge chamber to the crank chamber. The control valve regulates the supply passage. The control valve includes a valve body, a spool and a solenoid. The valve body adjusts the size of an opening in the supply passage. The spool moves the valve body in accordance with the difference between the pressure in the discharge chamber and the pressure in the suction chamber. The solenoid urges the valve body by a force, the magnitude of which corresponds to a supply of electricity. The urging force of the solenoid represents a target value of the pressure difference. The spool moves the valve body such that the pressure difference seeks the target value. The control valve, which is located in the compressor, permits the compressor displacement to be accurately controlled regardless of a thermal load on an evaporator.

    摘要翻译: 控制阀控制压缩机曲柄室内的压力,以改变压缩机的排量。 压缩机包括将排出室连接到曲柄室的排出室,吸入室和供给通道。 控制阀调节供应通道。 控制阀包括阀体,阀芯和螺线管。 阀体调整供给通道中的开口的尺寸。 阀芯根据排放室中的压力和吸入室中的压力之差来移动阀体。 螺线管通过一个力促使阀体,其大小对应于电力供应。 螺线管的推力表示压力差的目标值。 阀芯使阀体移动,使得压力差寻找目标值。 位于压缩机中的控制阀允许压缩机位移被精确地控制,而与蒸发器上的热负荷无关。

    Air conditioner and displacement control valve for variable displacement compressor
    4.
    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。

    Variable displacement compressor
    5.
    发明授权
    Variable displacement compressor 失效
    可变排量压缩机

    公开(公告)号:US6158970A

    公开(公告)日:2000-12-12

    申请号:US280115

    申请日:1999-03-26

    摘要: A variable displacement compressor that decreases displacement to reduce compression load without imbalancing the rotation of the drive shaft when the rotating speed of the compressor's drive shaft exceeds a predetermined limit value. The compressor includes a pressurizing passage connecting a crank chamber to a discharge chamber. A rotated guide rotates integrally with the drive shaft. The pressurizing passage is opened and closed by a valve body. Orbiting balls, which contact the valve body, are arranged about the axis of the drive shaft and the rotated guide. The balls follow the rotation of the rotated guide and orbit about the axis. The orbiting radius of the balls varies. A spring urges the balls in a direction decreasing the orbiting radius of the balls. When the rotating speed of the drive shaft exceeds the limit value, centrifugal force moves the balls against the force of the spring and increases the orbiting diameter of the balls. This moves the valve body and increases the size of the pressurizing passage.

    摘要翻译: 一种可变排量压缩机,当压缩机的驱动轴的转速超过预定极限值时,减小位移以减小压缩载荷,而不会使驱动轴的旋转不平衡。 压缩机包括将曲柄室连接到排出室的加压通道。 旋转的导向件与驱动轴一体地旋转。 加压通道由阀体打开和关闭。 与阀体接触的轨道球围绕驱动轴的轴线和旋转的引导件布置。 球跟随旋转的引导件的旋转并围绕轴线轨道。 球的轨道半径变化。 弹簧以减小球的旋转半径的方向推动球。 当驱动轴的旋转速度超过极限值时,离心力抵抗弹簧的力而移动球,并增加滚珠的旋转直径。 这使得阀体移动并增加了加压通道的尺寸。

    Compressor
    6.
    发明授权
    Compressor 失效
    压缩机

    公开(公告)号:US06511296B2

    公开(公告)日:2003-01-28

    申请号:US09833393

    申请日:2001-04-12

    IPC分类号: F04B126

    CPC分类号: F04B27/1072

    摘要: A lug plate 11 is secured to a drive shaft 7 which is rotatably supported in a housing so as to rotate together with the drive shaft, and a swash plate 12 is operatively connected to the lug plate through a hinge mechanism so as to rotate together with the lug plate and so as to vary an angle with respect to the drive shaft 7. Pistons 17 which are received in cylinder bores la so as to reciprocally move are operatively connected to the swash plate 12, so that not only can a refrigerant be introduced and discharged in accordance with the rotation of the drive shaft 7, but also the stroke of the pistons 17 can be varied by varying the angle of the swash plate 12. A front radial bearing 9B is provided on the outer periphery of a boss portion 11A of the lug plate 11 and a coil spring 16 to bias the swash plate 12 is received in a spring receiving portion 11C formed in the lug plate 11 on the rear side thereof.

    摘要翻译: 凸耳板11固定在驱动轴7上,该驱动轴7可旋转地支撑在壳体中以与驱动轴一起旋转,并且斜盘12通过铰链机构可操作地连接到凸耳板,以便与 凸耳板,并且相对于驱动轴7改变角度。容纳在气缸孔1a中以便往复运动的活塞17可操作地连接到斜盘12,使得不仅可以引入制冷剂 并且根据驱动轴7的旋转而排出,也可以通过改变斜盘12的角度来改变活塞17的行程。前径向轴承9B设置在凸台部11A的外周 并且用于偏置斜盘12的螺旋弹簧16被容纳在形成在其后侧的凸耳板11中的弹簧容纳部11C中。

    Displacement control valve for variable displacement compressor
    7.
    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。

    Air conditioner
    8.
    发明授权
    Air conditioner 失效
    冷气机

    公开(公告)号:US06481227B1

    公开(公告)日:2002-11-19

    申请号:US09699879

    申请日:2000-10-30

    IPC分类号: F25B4100

    摘要: An air conditioner having a refrigerant circuit that maintains a high cooling efficiency and a sufficient amount of oil returned to a compressor even if the flow rate of refrigerant is decreased due to a low cooling load is provided. The refrigerant circuit includes a condenser, an expansion valve, an evaporator and a variable displacement compressor. The expansion valve is normal-charge type. A control valve adjusts the pressure in a crank chamber based on the value of a current from a controller and on a pressure difference between two pressure monitoring points, which are located in the refrigerant circuit. Accordingly, the compressor displacement and the flow rate of refrigerant in the circuit are controlled.

    摘要翻译: 提供了一种具有制冷剂回路的空调,其具有保持高冷却效率和足够量的油返回到压缩机,即使制冷剂的流量由于低的冷却负荷而降低。 制冷剂回路包括冷凝器,膨胀阀,蒸发器和可变排量压缩机。 膨胀阀是正常充电型。 控制阀基于来自控制器的电流值和位于制冷剂回路中的两个压力监测点之间的压力差来调节曲柄室中的压力。 因此,控制电路中的压缩机排量和制冷剂的流量。

    Control valve for variable displacement compressor

    公开(公告)号:US06638026B2

    公开(公告)日:2003-10-28

    申请号:US10044644

    申请日:2002-01-09

    IPC分类号: F04B126

    摘要: A control valve has a valve housing. A valve chamber and a pressure sensing chamber are defined in the valve housing, respectively. A pressure sensing member is located in the pressure sensing chamber. A pressure sensing rod is slidably supported by the valve housing. A valve body is accommodated in the valve chamber. An end of the pressure sensing rod is connected to the pressure sensing member and the other end of the pressure sensing rod contacts the valve body. A solenoid chamber is defined in the valve housing. A stationary iron core is located between the valve chamber and the solenoid chamber. A solenoid rod extends through and is slidably supported by the stationary iron core. An urging force applied to the pressure sensing member by an actuator through the solenoid rod corresponds to a target value of the pressure difference. The pressure sensing member moves the valve body such that the pressure difference seeks the target value.

    Compressor having check valve and oil separator unit
    10.
    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。