Displacement control valve
    1.
    发明授权
    Displacement control valve 有权
    位移控制阀

    公开(公告)号:US06361283B1

    公开(公告)日:2002-03-26

    申请号:US09588742

    申请日:2000-06-06

    IPC分类号: F04B126

    摘要: A control valve controls the displacement of a variable displacement type compressor. The compressor has a crank chamber, a bleed passage, and a supply passage. An outlet valve portion located on the bleed passage to control the opening of the bleed passage. An inlet valve portion is located on the supply passage to control the opening of the supply passage. A transmission rod extends between the outlet valve portion and the inlet valve portion to connect the outlet valve portion to the inlet valve portion. The transmission rod moves axially. A through hole is located in the inlet valve portion to receive a part of the transmission rod. The through hole constitutes a part of the supply passage. A clearance is formed between the transmission rod and the through hole to constantly connect the discharge pressure zone to the crank chamber.

    摘要翻译: 控制阀控制可变排量型压缩机的排量。 压缩机具有曲柄室,排气通道和供给通道。 位于排出通道上的出口阀部分,用于控制排出通道的开口。 入口阀部分位于供给通道上以控制供应通道的开口。 传动杆在出口阀部分和入口阀部分之间延伸,以将出口阀部分连接到入口阀部分。 传动杆轴向移动。 通孔位于入口阀部分中,以容纳传动杆的一部分。 通孔构成供给通道的一部分。 在传动杆和通孔之间形成间隙,以将排出压力区恒定地连接到曲柄室。

    Control valve for variable displacement compressors
    2.
    发明授权
    Control valve for variable displacement compressors 失效
    变排量压缩机控制阀

    公开(公告)号:US06354811B1

    公开(公告)日:2002-03-12

    申请号:US09710397

    申请日:2000-11-09

    IPC分类号: F04B132

    摘要: A control valve controls the displacement of a variable displacement type compressor. The compressor includes a crank chamber, suction chamber, a bleed passage, and a supply passage. The control valve has a supply side valve, a transmission rod, and a relief side valve. The transmission rod connects the relief side valve with the supply side valve. The relief side valve includes a passage chamber constituting part of the bleed passage. The passage chamber is separated into a first area, which is connected to the crank chamber, and a lower area, which is connected to the suction chamber. A pressure sensing member moves the relief side valve body in accordance with the pressure in the upper area. The effective pressure receiving area of the sensing member is substantially equal to the cross sectional area of the passage chamber that is sealed by the relief side valve body.

    摘要翻译: 控制阀控制可变排量型压缩机的排量。 压缩机包括曲柄室,抽吸室,排放通道和供应通道。 控制阀具有供给侧阀,传动杆和泄压侧阀。 传动杆将泄压侧阀与供油侧阀连接。 泄压侧阀包括构成排气通路的一部分的通道室。 通道室被分离成连接到曲柄室的第一区域和连接到吸入室的下部区域。 压力检测构件根据上部区域中的压力移动释放侧阀体。 感测构件的有效压力接收面积基本上等于由泄放侧阀体密封的通道室的横截面面积。

    Variable displacement compressor and air conditioning apparatus
    3.
    发明授权
    Variable displacement compressor and air conditioning apparatus 失效
    变排量压缩机和空调设备

    公开(公告)号:US06537037B2

    公开(公告)日:2003-03-25

    申请号:US09760352

    申请日:2001-01-12

    IPC分类号: F04B4900

    摘要: A variable displacement compressor is operated efficiently by avoiding inefficient conditions. The compressor varies its displacement using a control valve for which an external duty control procedure is performed. A target value for controlling the displacement is determined in accordance with the duty ratio Dt of a drive signal sent to the control valve. If the duty ratio Dt is equal to or greater than a predetermined reference value DJ, the displacement is permitted to be varied corresponding to the duty ratio Dt. If the duty ratio Dt is smaller than the reference value DJ, the variable displacement control through the duty control procedure is suspended. In this case, the compressor is operated with a nullified duty ratio (Dt=0), or a minimum displacement.

    摘要翻译: 可变排量压缩机通过避免低效的条件有效地运行。 压缩机使用执行外部负载控制程序的控制阀改变其排量。 根据发送到控制阀的驱动信号的占空比Dt来确定用于控制位移的目标值。 如果占空比Dt等于或大于预定参考值DJ,则允许位移相应于占空比Dt而变化。 如果占空比Dt小于参考值DJ,则通过占空比控制程序的可变排量控制被暂停。 在这种情况下,压缩机以无效占空比(Dt = 0)或最小排量运行。

    Controller for variable displacement compressor
    4.
    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。

    Air conditioner and displacement control valve for variable displacement compressor
    8.
    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
    9.
    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 apparatus and method for variable displacement compressor
    10.
    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。