Displacement control valve for variable displacement compressor
    1.
    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。

    Variable displacement compressor
    2.
    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。

    Variable displacement compressor
    3.
    发明授权
    Variable displacement compressor 失效
    可变排量压缩机

    公开(公告)号:US06234763B1

    公开(公告)日:2001-05-22

    申请号:US09443263

    申请日:1999-11-22

    IPC分类号: F04B126

    摘要: A variable displacement compressor the displacement of which is externally controlled is provided. The compressor has basically the same structure as prior art compressors except for simple differences. A pressure sensing chamber of a displacement control valve is connected to a suction chamber by an outlet passage. A bellows is located in the pressure sensing chamber. The bellows expands and contracts in accordance with the pressure in the sensing chamber. A valve chamber forms part of a displacement control passage, which is used to control the pressure of a crank chamber. A valve body is located in the valve chamber. The valve body is moved by the bellows to open and close the displacement control passage. Highly pressurized gas from the discharge chamber is supplied to the pressure sensing chamber through an inlet passage. The gas in the pressure sensing chamber is released to the suction chamber through the outlet passage. An electromagnetic valve is located in the outlet passage to regulate the flow of refrigerant gas from the sensing chamber. The outlet passage also includes a bypass passage. The bypass passage bypasses the electromagnetic valve and constantly communicates the pressure sensing chamber with the suction chamber.

    摘要翻译: 提供了一种可变排量压缩机,其位移由外部控制。 除了简单的差异之外,压缩机具有与现有技术的压缩机基本相同的结构。 排量控制阀的压力检测室通过出口通道连接到吸入室。 波纹管位于压力传感室中。 波纹管根据传感室内的压力而膨胀和收缩。 阀室形成位移控制通道的一部分,用于控制曲柄室的压力。 阀体位于阀室中。 阀体通过波纹管移动以打开和关闭位移控制通道。 来自排放室的高压气体通过入口通道供应到压力感测室。 压力检测室中的气体通过出口通道释放到吸入室。 电磁阀位于出口通道中以调节来自感测室的制冷剂气体的流动。 出口通道还包括旁通通道。 旁路通道绕过电磁阀,并将压力传感室与吸入室不断连通。

    Variable displacement type refrigerant compressor
    4.
    发明授权
    Variable displacement type refrigerant compressor 失效
    可变排量型制冷压缩机

    公开(公告)号:US06217292B1

    公开(公告)日:2001-04-17

    申请号:US09318889

    申请日:1999-05-26

    IPC分类号: F04B126

    摘要: A variable displacement type refrigerant compressor including a compressor housing having internally a compressing mechanism for compressing a refrigerant, a displacement varying mechanism for adjustably varying an amount of the refrigerant compressed and discharged by the compressing mechanism, and a displacement control valve unit controlling the operation of the displacement varying mechanism, which is an assembly of a pressure sensing mechanism formed by a flanged bellows element, a valve element, a valve seat having a port cooperating with the valve element, and a valve rod engaging the pressure sensing mechanism with the valve element, and are assembled by using a fixing screw member and a jig tool in position in a pressure sensing chamber, a valve chamber, and a valve rod bore coaxially formed in the compressor housing by drilling or boring from two sides of the compressor housing. The flanged bellows element of the displacement control valve unit is fixed in the pressure sensing chamber via the flange thereof by being threadedly engaged in the pressure sensing chamber.

    摘要翻译: 一种变排量型制冷剂压缩机,包括内部具有用于压缩制冷剂的压缩机构的压缩机壳体,用于可调地改变由压缩机构压缩和排出的制冷剂的量的位移改变机构,以及控制该压缩机壳体的操作的位移控制阀单元 位移变化机构,其是由法兰波纹管元件,阀元件,具有与阀元件配合的端口的阀座形成的压力感测机构的组件以及与压力感测机构与阀元件接合的阀杆 并且通过使用固定螺钉构件和夹具工具在通过从压缩机壳体的两侧钻孔或钻孔同轴地形成在压力传感室,阀室和阀杆孔中的适当位置来组装。 位移控制阀单元的带凸缘的波纹管元件通过螺纹接合在压力感测室中,通过其凸缘固定在压力感测室中。

    Control valve for variable displacement compressors and method for varying displacement
    5.
    发明授权
    Control valve for variable displacement compressors and method for varying displacement 失效
    用于变排量压缩机的控制阀和变位移的方法

    公开(公告)号:US06217291B1

    公开(公告)日:2001-04-17

    申请号:US09295165

    申请日:1999-04-20

    IPC分类号: F04B126

    摘要: A control valve varies the displacement of a variable displacement compressor. A pressure chamber is connected to a suction chamber through a fixed throttle and to a discharge chamber through an intake passage. The intake passage includes a fixed throttle and an electromagnetic valve. A controller controls the electromagnetic valve in accordance with data related to the running conditions of the vehicle. The control valve has a threshold value that changes in accordance with the opening and closing of the electromagnetic valve.

    摘要翻译: 控制阀改变可变排量压缩机的排量。 压力室通过固定节气门连接到吸入室,并通过进气通道连接到排放室。 进气通道包括固定节流阀和电磁阀。 控制器根据与车辆的运行状况相关的数据控制电磁阀。 控制阀具有根据电磁阀的打开和关闭而改变的阈值。

    Bearing for swash plate compressor
    6.
    发明授权
    Bearing for swash plate compressor 失效
    轴承用于斜盘式压缩机

    公开(公告)号:US06446540B1

    公开(公告)日:2002-09-10

    申请号:US09568296

    申请日:2000-05-09

    IPC分类号: F01B300

    CPC分类号: F04B27/1063

    摘要: A compressor has a housing and a cylinder bore. A piston is accommodated in the cylinder bore. A drive shaft is supported by the housing. An annular support plate is driven by the drive shaft. The support plate surrounds the drive shaft and inclines with respect to the axis of the drive shaft. The support plate has an boss. A radial bearing located about the boss. The radial bearing has an outer race. A disk-like swash plate is formed integrally with the outer race. The swash plate is connected the piston to cause the piston to reciprocate.

    摘要翻译: 压缩机具有壳体和缸孔。 活塞容纳在气缸孔中。 驱动轴由外壳支撑。 环形支撑板由驱动轴驱动。 支撑板围绕驱动轴并相对于驱动轴的轴线倾斜。 支撑板具有凸台。 位于凸台周围的径向轴承。 径向轴承具有外圈。 盘状斜盘与外圈一体地形成。 旋转斜盘连接活塞,使活塞往复运动。

    Structure for damping pressure pulsations of compressor
    7.
    发明授权
    Structure for damping pressure pulsations of compressor 失效
    压缩机阻尼压力脉动结构

    公开(公告)号:US06390786B1

    公开(公告)日:2002-05-21

    申请号:US09613385

    申请日:2000-07-11

    IPC分类号: F04B1100

    CPC分类号: F04B27/1081 F04B39/0055

    摘要: According to the structure for damping the pulsations of discharge pressure of a compressor of the present invention, in the annular discharge chamber 28 divided on the outer circumferential side in the rear housing 5, two bulkhead sections 35 are extended from positions on both sides of the outlet 23 in the circumferential direction in such a manner that they are separate from each other. The end portion of each bulkhead section 35 is extended to halfway between the first discharge port section 20 and the second discharge port section 21. The flow path from the first discharge port section 20 to the outlet 23 is directed to the opposite side to the outlet 23 and then turned back to the outlet 23. Therefore, the length of the flow path from the first discharge port section 20 to the outlet 23 becomes relatively long.

    摘要翻译: 根据本发明的压缩机的排出压力的脉动的结构,在后壳体5的外周侧分隔的环状排出室28中,两个隔板部35从 出口23沿圆周方向彼此分离。 每个隔板部分35的端部延伸到第一排放口部分20和第二排出口部分21之间的中间。从第一排出口部分20到出口23的流动路径指向与出口 23,然后转回到出口23.因此,从第一排出口部分20到出口23的流动路径的长度变得相对较长。

    Air conditioner and displacement control valve for variable displacement compressor
    9.
    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。

    Compressor utilizing spaces between cylinder bores

    公开(公告)号:US06508634B2

    公开(公告)日:2003-01-21

    申请号:US09905142

    申请日:2001-07-13

    IPC分类号: F04B126

    CPC分类号: F04B27/1081

    摘要: A compressor C has a construction comprising a cylinder block 1 in which cylinder bores 1a are formed, a front housing 2 and a rear housing 4 which are arranged at the front and at the rear, respectively, of the cylinder block 1. Pistons 20 which are accommodated in each cylinder bore 1a so as to be able to reciprocate, are connected to the cam plate 12, which connects to a drive shaft 6 so as to be able to integrally rotate, so as to operate, and the pistons 20 compress refrigerant gas according to the rotation of the drive shaft 6. A suction muffler 40, a discharge muffler 41 and a control valve 31 are provided between the cylinder bores 1a in the cylinder block 1. Further, a unit 60 which comprises a discharge check valve and an oil separator is disposed in the suction muffler 40.