Control valve for variable displacement type compressor
    1.
    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:US06517324B2

    公开(公告)日:2003-02-11

    申请号:US09948356

    申请日:2001-09-07

    IPC分类号: F04B126

    摘要: A control valve is used for a variable displacement compressor. The compressor has a crank chamber and a supply passage. The control valve includes a valve housing. A valve chamber is defined in the valve housing. A valve body is accommodated in the valve chamber for adjusting the opening size of the supply passage. A pressure sensing chamber is defined in the valve housing. A pressure sensing member separates the pressure sensing chamber into a first pressure chamber and a second pressure chamber. The pressure at a first pressure monitoring point is applied to the first pressure chamber. The pressure at a second pressure monitoring point located is applied to the second pressure chamber. The pressure sensing member moves the valve body in accordance with the pressure difference between the first pressure chamber and the second pressure chamber. The pressure sensing member is a bellows or a diaphragm, an actuator applies force to the pressure sensing member in accordance with external commands. The force is applied by the actuator 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.

    摘要翻译: 控制阀用于可变排量压缩机。 压缩机具有曲柄室和供给通道。 控制阀包括阀壳体。 阀室定义在阀壳体中。 阀体容纳在阀室中,用于调节供给通道的开口尺寸。 压力传感室被限定在阀壳体中。 压力感测构件将压力感测室分离成第一压力室和第二压力室。 将第一压力监测点处的压力施加到第一压力室。 位于第二压力监测点的压力被施加到第二压力室。 压力检测构件根据第一压力室和第二压力室之间的压力差移动阀体。 压力感测构件是波纹管或隔膜,致动器根据外部命令向压力感测构件施加力。 致动器施加的力对应于压力差的目标值。 压力检测构件移动阀体,使得压差寻求目标值。

    Control valve for variable displacement type compressor

    公开(公告)号:US06663356B2

    公开(公告)日:2003-12-16

    申请号:US09948345

    申请日:2001-09-07

    IPC分类号: F04B126

    CPC分类号: F04B27/1804

    摘要: A control valve is used for a variable displacement compressor. The compressor has a crank chamber and a bleed passage. The control valve includes a valve housing. A valve chamber is defined in the valve housing. A valve body is accommodated in the valve chamber for adjusting the opening size of the bleed passage. A pressure sensing chamber is defined in the valve housing. A pressure sensing member separates the pressure sensing chamber into a first pressure chamber and a second pressure chamber. The pressure at a first pressure monitoring point is applied to the first pressure chamber. The pressure at a second pressure monitoring point located is applied to the second pressure chamber. The pressure sensing member moves the valve body in accordance with the pressure difference between the first pressure chamber and the second pressure chamber such that the displacement of the compressor is varied to counter changes of the pressure difference. The pressure sensing member is a bellows or a diaphragm.

    Axial movement restriction means for swash plate compressor and compressor assembly method
    3.
    发明授权
    Axial movement restriction means for swash plate compressor and compressor assembly method 失效
    用于斜盘式压缩机和压缩机组装方法的轴向运动限制装置

    公开(公告)号:US06547533B2

    公开(公告)日:2003-04-15

    申请号:US09758599

    申请日:2001-01-10

    IPC分类号: F04B126

    CPC分类号: F04B27/1054

    摘要: A piston type compressor has a housing, a crank chamber and a drive shaft supported by the housing. A front restriction and a rear restriction are located in the housing. The front and rear restrictions restrict axial movement of the drive shaft. The front restriction restricts forward movement of the drive shaft. The rear restriction restricts rearward axial movement of the drive shaft. A first clearance is located between the rear end of the drive shaft and the rear restriction when the drive shaft is restricted by the front restriction. A second clearance is formed between the piston and a valve plate when the drive shaft is restricted by the front restriction and when the piston is in the top dead center position. The first clearance is narrower than the second clearance. The method of assembly the piston easily sets the first clearance.

    摘要翻译: 活塞式压缩机具有壳体,曲柄室和由壳体支撑的驱动轴。 前部限制和后部限制位于外壳中。 前后限制限制驱动轴的轴向运动。 前限制限制驱动轴的向前运动。 后限制限制驱动轴的向后轴向运动。 当驱动轴被前限制限制时,第一间隙位于驱动轴的后端和后限制件之间。 当驱动轴被前限制限制时和活塞处于上止点位置时,在活塞和阀板之间形成第二间隙。 第一间隙比第二间隙窄。 装配活塞的方法容易设定第一间隙。

    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.

    Control valve for variable displacement type compressor
    7.
    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。

    Vehicle air conditioner and method for controlling vehicle air conditioner
    8.
    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 of variable displacement compressor

    公开(公告)号:US06637228B2

    公开(公告)日:2003-10-28

    申请号:US10079714

    申请日:2002-02-19

    IPC分类号: F25B100

    摘要: A control valve is used for a variable displacement compressor installed in a refrigerant circuit of an air conditioner. The compressor has a control chamber and a control passage, which connects the control chamber to a pressure zone in which the pressure is different from the pressure of the control chamber. The control valve has a valve body, which is accommodated in the valve chamber for adjusting the opening size of the control passage. A pressure sensing member moves in accordance with the pressure difference between two pressure monitoring points located in the refrigerant circuit. The pressure sensing member moves the valve body such that the displacement of the compressor is varied to counter changes of the pressure difference. The force applied by an actuator 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. An urging member is accommodated in the valve chamber. The urging member urges the valve body in a direction to open the control passage.

    Displacement control valve for variable displacement compressor
    10.
    发明申请
    Displacement control valve for variable displacement compressor 审中-公开
    可变排量压缩机位移控制阀

    公开(公告)号:US20050287014A1

    公开(公告)日:2005-12-29

    申请号:US11167708

    申请日:2005-06-27

    IPC分类号: F04B27/18 F04B1/26

    摘要: A displacement control valve for a variable displacement compressor includes a first valve hole forming a part of a supply passage and a second valve hole forming a part of a discharge passage. Displacement of a reciprocating body is transmitted to each of first and second valve bodies so that each valve body opens or closes the corresponding valve hole. When the reciprocating body is within a predetermined displacement range, a double closing state occurs, in which the first valve body closes the first valve hole and the second valve hole closes the second valve hole. When the reciprocating body is out of the displacement range, a single closing state occurs. Therefore, the control valve prevents the first valve hole from opening concurrently with the second valve hole.

    摘要翻译: 用于可变排量压缩机的排量控制阀包括形成供应通道的一部分的第一阀孔和形成排出通道的一部分的第二阀孔。 往复运动体的位移被传递到第一和第二阀体中的每一个,使得每个阀体打开或关闭相应的阀孔。 当往复运动体处于预定的位移范围内时,发生双闭合状态,其中第一阀体关闭第一阀孔,第二阀孔关闭第二阀孔。 当往复运动体超出位移范围时,发生单一关闭状态。 因此,控制阀防止第一阀孔与第二阀孔同时开启。