Variable displacement compressors and methods for controlling the same
    3.
    发明授权
    Variable displacement compressors and methods for controlling the same 失效
    可变排量压缩机及其控制方法

    公开(公告)号:US06679078B2

    公开(公告)日:2004-01-20

    申请号:US10283462

    申请日:2002-10-30

    IPC分类号: F25B100

    摘要: Variable displacement compressors (101) include a displacement control valve (181) that is in communication with a drive chamber (111). The output displacement of the compressor varies in response to changes in pressure within the drive chamber. A controller (203) may control the displacement control valve so that the pressure within the drive chamber is maintained within a predetermined range. Further, the predetermined range may be determined based upon one or more factors that cause fluctuations in the pressure within the drive chamber during operation of the compressor.

    摘要翻译: 可变排量压缩机(101)包括与驱动室(111)连通的排量控制阀(181)。 压缩机的输出位移响应于驱动室内的压力变化而变化。 控制器(203)可以控制排量控制阀,使得驱动室内的压力保持在预定范围内。 此外,可以基于在压缩机的操作期间引起驱动室内的压力波动的一个或多个因素来确定预定范围。

    Vehicle air conditioner and method for controlling vehicle air conditioner
    4.
    发明授权
    Vehicle air conditioner and method for controlling vehicle air conditioner 失效
    车用空调及车辆空调控制方法

    公开(公告)号:US06505473B2

    公开(公告)日:2003-01-14

    申请号:US10132928

    申请日:2002-04-26

    IPC分类号: F25B100

    摘要: A vehicle air conditioner including a refrigerant circuit that incorporates a variable displacement compressor driven by an engine of the vehicle. The air conditioner includes a control valve for varying the displacement of the compressor and an ECU for controlling the control valve. The control valve has a bellows, a valve body, and a coil. The ECU varies the displacement of the compressor by energizing the coil to apply a force, which counters the movement of the bellows, to the valve body to move the valve body. This alters the moved amount of the bellows. The air conditioner control unit gradually changes the force applied to the valve body by the coil to adjust the pressure difference and vary the displacement of the compressor when the engine is running at an idle speed.

    摘要翻译: 一种车辆用空调机,其具有由车辆的发动机驱动的可变排量压缩机的制冷剂回路。 该空气调节器包括用于改变压缩机的位移的控制阀和用于控制控制阀的ECU。 控制阀具有波纹管,阀体和线圈。 ECU通过对线圈通电来改变压缩机的位移,以将与波纹管的运动相抗衡的力施加到阀体以移动阀体。 这改变了波纹管的移动量。 空调控制单元通过线圈逐渐改变施加到阀体的力,以调节压力差,并且当发动机以怠速运转时改变压缩机的排量。

    Control valve for variable displacement compressor
    5.
    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:US06684654B2

    公开(公告)日:2004-02-03

    申请号:US10143357

    申请日:2002-05-09

    IPC分类号: F25B100

    CPC分类号: F04B27/1804

    摘要: A control valve includes an accommodation cylinder, a coil, a stator, a plunger, and a valve body. Electromagnetic force is generated between the stator and the plunger and the plunger moves relative to the stator. The valve body adjusts the opening degree of a valve hole. A flat surface and a peripheral wall are formed in an end of the stator. The peripheral wall has a tapered cross-section with an inclined inner surface. The inclined inner surface and the flat surface define a recess. The plunger has a frustum portion. The frustum portion includes a flat distal surface and an annular inclined surface. The taper angle of the peripheral wall is equal to or less than twenty degrees. The diameter of the flat distal surface of the frustum portion is equal to or greater than eighty percent of the largest diameter of the annular inclined surface.

    摘要翻译: 控制阀包括容纳筒,线圈,定子,柱塞和阀体。 在定子和柱塞之间产生电磁力,柱塞相对于定子移动。 阀体调节阀孔的开度。 在定子的端部形成有平坦的表面和周壁。 周壁具有倾斜内表面的锥形横截面。 倾斜的内表面和平坦表面限定凹部。 柱塞具有平截头体部分。 平截头体部分包括平坦的远侧表面和环形倾斜表面。 周壁的锥角等于或小于二十度。 平截头体部分的平坦远端表面的直径等于或大于环形倾斜表面的最大直径的百分之八十。

    Control valve for variable displacement type compressor
    6.
    发明授权
    Control valve for variable displacement type compressor 失效
    变排式压缩机控制阀

    公开(公告)号:US06682314B2

    公开(公告)日:2004-01-27

    申请号:US10054341

    申请日:2002-01-22

    IPC分类号: F04B126

    摘要: A control valve has a valve housing and a valve chamber defined in the valve housing. A valve body is accommodated in the valve chamber for adjusting the opening degree of a supply passage. A pressure sensing chamber is defined in the valve housing. The pressure at a pressure monitoring point in a refrigerant circuit is applied to the pressure sensing chamber. A bellows is located in the pressure sensing chamber. The bellows has a movable end. A transmission rod is slidably supported by the valve housing. The transmission rod includes the valve body. A support spring is located between the inner wall of the pressure sensing chamber and the movable end of the bellows. The spring supports the movable end such that the movable end can be displaced. The movable end of the bellows includes a protrusion such that the spring and the movable end of the bellows are fitted to each other.

    摘要翻译: 控制阀具有阀壳体和限定在阀壳体中的阀室。 阀体容纳在阀室中,用于调节供给通道的开度。 压力传感室被限定在阀壳体中。 制冷剂回路中的压力监测点处的压力被施加到压力感测室。 波纹管位于压力传感室中。 波纹管有一个可动端。 传动杆由阀壳可滑动地支撑。 传动杆包括阀体。 支撑弹簧位于压力传感室的内壁和波纹管的可动端之间。 弹簧支撑可动端,使得移动端可以移位。 波纹管的可动端包括突起,使得弹簧和波纹管的可动端彼此配合。

    Control system for variable displacement compressor
    7.
    发明授权
    Control system for variable displacement compressor 失效
    变排量压缩机控制系统

    公开(公告)号:US07243502B2

    公开(公告)日:2007-07-17

    申请号:US10741726

    申请日:2003-12-18

    IPC分类号: F25B1/00 F04B1/26

    摘要: In a control system of a variable displacement compressor, a pressure sensing means mechanically detects at least one pressure in the refrigerant circuit. A varying means varies a reference value for positioning a valve body. A pressure detector electrically detects the pressure detected by the pressure sensing means in the refrigerant circuit and/or physical quantity which correlates with the detected pressure. A calculator calculates a maximum value of urging force applied to the valve body by the varying means toward an increasing side of the displacement of the compressor. The urging force applied to the valve body is controlled not to exceed the maximum value toward the increasing side of the displacement. The displacement of the compressor is maximized by the pressure sensing means under the pressure for calculating the maximum value when the varying means applies urging force of the maximum value to the valve body.

    摘要翻译: 在可变排量压缩机的控制系统中,压力感测装置机械地检测制冷剂回路中的至少一个压力。 改变装置改变用于定位阀体的参考值。 压力检测器电检测由制冷剂回路中的压力感测装置检测到的压力和/或与检测到的压力相关的物理量。 计算器计算通过变化装置向压缩机的位移增加侧施加到阀体的施力的最大值。 控制施加在阀体上的施力被控制为不超过位移增加侧的最大值。 当变化装置向阀体施加最大值的推压力时,压力检测装置在用于计算最大值的压力下最大化压缩机的位移。

    Control valve of variable displacement compressor with pressure sensing member
    8.
    发明授权
    Control valve of variable displacement compressor with pressure sensing member 失效
    带压力传感元件的变量压缩机控制阀

    公开(公告)号:US06783332B2

    公开(公告)日:2004-08-31

    申请号:US10205324

    申请日:2002-07-25

    IPC分类号: F04B126

    摘要: A control valve controls the displacement of a variable displacement compressor. The control valve includes a first valve body for adjusting the pressure in a crank chamber, a pressure sensing member, which is displaced in accordance with the pressure difference between two pressure points located in a refrigerant circuit to move the first valve body, an electromagnetic actuator for urging the pressure sensing member, and a second valve body, which is operably coupled to the pressure sensing member. The second valve body adjusts the opening degree of a discharge passage of the refrigerant circuit in accordance with the displacement of the pressure sensing member. Therefore, compared to a case where the first and second valve bodies are independently arranged in the compressor, the number of parts are reduced, which reduces the manufacturing cost.

    摘要翻译: 控制阀控制可变排量压缩机的排量。 控制阀包括用于调节曲柄室中的压力的​​第一阀体,压力检测构件,该压力检测构件根据位于制冷剂回路中的两个压力点之间的压力差移动以移动第一阀体;电磁致动器 用于推动压力感测构件和可操作地联接到压力感测构件的第二阀体。 第二阀体根据压力感测部件的位移调整制冷剂回路的排出通路的开度。 因此,与第一和第二阀体独立地设置在压缩机中的情况相比,部件数量减少,这降低了制造成本。

    Displacement control device for variable displacement compressor
    9.
    发明授权
    Displacement control device for variable displacement compressor 失效
    变排量压缩机位移控制装置

    公开(公告)号:US06729853B2

    公开(公告)日:2004-05-04

    申请号:US10236527

    申请日:2002-09-05

    IPC分类号: F04B126

    摘要: A first bleed passage and a second bleed passage each connect a crank chamber of a compressor with a suction chamber of the compressor. A first supply passage and a second supply passage each connect the crank chamber with a discharge chamber of the compressor. A first control valve adjusts the opening size of the first supply passage in response to the pressure in the suction chamber. A second control valve includes a ball valve and an electromagnetic actuator. The ball valve adjusts the opening size of the second supply passage and the opening size of the first bleed passage. The electromagnetic actuator moves the ball valve. The ball valve is moved to a first position and to a second position. At the first position, the ball valve closes the second supply passage and opens the first bleed passage. At the second position, the ball valve opens the second supply passage and closes the first bleed passage. A displacement control device, which includes the first and second control valves, readily and reliably changes the displacement of the compressor.

    摘要翻译: 第一排放通道和第二排放通道各自连接压缩机的曲轴室和压缩机的吸入室。 第一供给通路和第二供给通路将曲柄室与压缩机的排出室连接。 第一控制阀响应于吸入室中的压力来调节第一供给通道的开口尺寸。 第二控制阀包括球阀和电磁致动器。 球阀调节第二供给通道的开口尺寸和第一排出通道的开口尺寸。 电磁执行器移动球阀。 球阀被移动到第一位置和第二位置。 在第一位置,球阀关闭第二供给通道并打开第一排出通道。 在第二位置,球阀打开第二供给通道并关闭第一排出通道。 包括第一和第二控制阀的排量控制装置容易且可靠地改变压缩机的排量。