Vane type compressor with fluid pressure biased vanes
    1.
    发明授权
    Vane type compressor with fluid pressure biased vanes 失效
    具有流体压力偏置叶片的叶片式压缩机

    公开(公告)号:US4653991A

    公开(公告)日:1987-03-31

    申请号:US710424

    申请日:1985-03-11

    CPC分类号: F01C21/0872

    摘要: The compressor is characterized by a high pressure port provided in a rear plate at a position that the bottom portion of a vane groove of a vane which reaches a delivery port contacts the high pressure port, and low pressure ports provided, independently of the high pressure port, in the front and rear plates at positions so that the low pressure ports communicate with the high pressure port through the bottom portion of the vane groove of the vane between the low and high pressure ports only when the center of said vane groove is disposed between the high and low pressure ports so that the high pressure is fed intermittently to the low pressure port. In a region of rotation of the rotor where vane-tip pressing force is small, a high pressure from the high pressure port is applied to vane grooves as vane back pressure, and in the other region a relatively low pressure is applied thereto from the low pressure ports.

    摘要翻译: 压缩机的特征在于,在后板上设置有高压口,该高压口位于到达输送口的叶片的叶片槽的底部与高压口接触的位置,并且独立于高压设置的低压口 在前后板的位置处,只有当所述叶片槽的中心设置在低压端口时,低压端口通过叶片的叶片槽的底部在低压端口和高压端口之间与高压端口连通 在高压端口和低压端口之间,使得高压被间歇地供给到低压端口。 在叶片压头力小的转子的旋转区域中,来自高压口的高压作为叶片背压被施加到叶片槽,而在另一区域中,低压口从低压口施加相对较低的压力 压力端口。

    Slide vane type compressor with increased suction part-cross-sectional
area
    2.
    发明授权
    Slide vane type compressor with increased suction part-cross-sectional area 失效
    滑动叶片式压缩机具有增加的吸入部分横截面积

    公开(公告)号:US4702684A

    公开(公告)日:1987-10-27

    申请号:US891045

    申请日:1986-07-30

    IPC分类号: F04C18/344 F04C29/12

    CPC分类号: F04C29/12

    摘要: A slide vane type compressor comprises a cam ring formed with at least one working chamber and a rotor arranged in the at least one working chamber with an outer peripheral surface of the rotor being disposed close to an inner wall surface of the cam ring at least at one axial sealing portion thereof, with the rotor being formed vane grooves for respectively accommodating a plurality of vanes. At least one suction port introduces gas into the at least one working chamber, with the suction port having a suction terminal point angle extending from the axial sealing portion to a terminal point of the suction port, as viewed in the direction of rotation of the rotor. The suction terminal point angle of the suction port is greater than a geometrical suction terminal point angle geometrically determined in dependence upon the number of working chambers and the number of the plurality of vanes so that the suction terminal point angle of the suction port is advanced as compared with the geometrical suction terminal point angle.

    摘要翻译: 滑动叶片式压缩机包括形成有至少一个工作室的凸轮环和布置在所述至少一个工作室中的转子,所述转子的外周表面至少设置在所述凸轮环的内壁表面附近 其一个轴向密封部分,其中转子形成用于分别容纳多个叶片的叶片槽。 至少一个吸入口将气体引入到至少一个工作室中,其中吸入口具有从轴向密封部分延伸到吸入口终点的吸入端点角度,从转子的旋转方向观察 。 吸入口的吸入端点角度大于根据工作室的数量和多个叶片的数量几何确定的几何吸入端点角度,使得吸入口的吸入端点角度前进为 与几何吸力端点角度相比。

    Vane type compressor with volume control
    3.
    发明授权
    Vane type compressor with volume control 失效
    叶片式压缩机具有音量控制

    公开(公告)号:US4636148A

    公开(公告)日:1987-01-13

    申请号:US836110

    申请日:1986-03-04

    IPC分类号: F04C28/02 F04B49/02 F04C28/16

    CPC分类号: F04C28/16 F04C28/02

    摘要: A vane type compressor includes a plurality of working chambers defined by the cooperation of a rotor, a plurality of vanes and a cam ring. A valve assembly is disposed in a low pressure passage communicated with the working chambers and operative to bring a portion of the low pressure passage communicated with at least one of the working chambers to a full-closed or full-open position, to thereby effect control of the volume of gas discharged from the compressor.

    摘要翻译: 叶片型压缩机包括由转子,多个叶片和凸轮环的协作限定的多个工作室。 阀组件设置在与工作室连通的低压通道中,并且可操作地将与至少一个工作室连通的低压通道的一部分连通到全闭或全开位置,从而实现控制 从压缩机排出的气体体积。

    Variable capacity swash plate compressor
    4.
    发明授权
    Variable capacity swash plate compressor 失效
    可变容量斜盘压缩机

    公开(公告)号:US4801248A

    公开(公告)日:1989-01-31

    申请号:US83290

    申请日:1987-08-10

    摘要: The variable capacity swash plate compressor of the present invention includes a rotary swash plate having an eccentric mass located opposite to the driving point of the swash plate with respect to the axis of the same. The mass distribution in the rotary swash plate is established such that, within a range in which the piston stroke is less than a predetermined value, a moment about a pivot point produced by the rotation of the swash plate becomes larger than a moment produced by the reciprocating motion of pistons, piston rods and the like and acting upon the swash plate, while, within a range in which the stroke is larger than the predetermined value, the former moment becomes smaller than the latter moment. Accordingly, it is possible to provide a compressor of the type in which its capacity control characteristics are improved over a wide shaft speed range.

    摘要翻译: 本发明的可变容量旋转斜盘式压缩机包括旋转斜盘,其具有相对于其旋转斜盘相对于斜盘的驱动点相对的偏心质量。 旋转斜盘中的质量分布被建立为使得在活塞冲程小于预定值的范围内,由旋转斜盘旋转产生的枢转点周围的力矩变得大于由 活塞,活塞杆等的往复运动并作用在斜盘上,而在行程大于预定值的范围内,前者的力矩变得比后一时刻小。 因此,可以提供一种在宽的轴速度范围内提高其容量控制特性的类型的压缩机。

    Swash plate type compressor
    5.
    发明授权
    Swash plate type compressor 失效
    斜盘式压缩机

    公开(公告)号:US4321019A

    公开(公告)日:1982-03-23

    申请号:US044216

    申请日:1979-05-31

    IPC分类号: F04B27/10 F04B1/16

    CPC分类号: F04B27/109

    摘要: In a swash plate type compressor, an oil separating chamber is arranged in the course of the flow of coolant gas from an inlet to a low pressure chamber. An oil accumulating chamber is formed between the rear end of the drive shaft and the rear side cover. The oil accumulating chamber is communicated with the oil separating chamber and with a thrust bearing through an oil passage formed in the drive shaft. The thrust bearing is lubricated by use of oil from the oil accumulating chamber.

    摘要翻译: 在斜盘式压缩机中,在从入口到低压室的冷却剂气体的流动过程中布置油分离室。 在驱动轴的后端和后侧盖之间形成有储油室。 储油室与油分离室连通,通过形成在驱动轴上的油路与止推轴承连通。 推力轴承通过使用来自储油室的油进行润滑。

    Refrigerating system
    6.
    发明授权
    Refrigerating system 失效
    制冷系统

    公开(公告)号:US4867649A

    公开(公告)日:1989-09-19

    申请号:US941838

    申请日:1986-12-15

    摘要: A refrigeration system includes a variable-capacity compressor having a compression chamber for sucking and compressing a refrigerant and a crankcase surrounding a swash plate forming a drive portion for suction and compression, and a passage through which the refrigerant discharged from the outlet of the compression chamber passes at least through a condenser, an expansion means and an evaporator and is sucked into the inlet of the compression chamber of the compressor, the capacity of the compressor being changed by slanting the swash plate during its rotation. A pressure control device is provided in a refrigerant passage between the evaporator and the suction valve of the compressor whereby the pressure upstream thereof is controlled in such a manner that it does not decrease below a predetermined value, thereby preventing frosting of evaporator fins. A point partway along the passage upstream from the pressure control device and the crankcase of the variable-capacity compressor are communicated so that the capacity of the compressor may be controlled without controlling the pressure in the crankcase.

    摘要翻译: 制冷系统包括具有用于吸入和压缩制冷剂的压缩室的可变容量压缩机和围绕形成用于抽吸和压缩的驱动部分的旋转斜盘的曲轴箱,以及从压缩室的出口排出的制冷剂的通道 至少通过冷凝器,膨胀装置和蒸发器,并被吸入到压缩机的压缩室的入口中,通过在旋转期间倾斜斜板来改变压缩机的容量。 压缩控制装置设置在蒸发器和压缩机的吸入阀之间的制冷剂通道中,由此上游的压力被控制为使其不降低到低于预定值,从而防止蒸发器翅片的结霜。 通过压力控制装置上游的通路和可变容量的压缩机的曲轴箱的连通点,能够控制压缩机的容量而不控制曲轴箱内的压力。

    Variable displacement compressor
    7.
    发明授权
    Variable displacement compressor 失效
    可变排量压缩机

    公开(公告)号:US4782712A

    公开(公告)日:1988-11-08

    申请号:US92140

    申请日:1987-09-02

    CPC分类号: F04B27/18 Y10T74/18336

    摘要: A variable displacement compressor has a sleeve axially slidably mounted on an axial drive shaft and a swash plate tiltably connected to the sleeve. The angle of the tilt of the swash plate is variable by an axial movement of the sleeve and a movement of the swash plate along a guiding cam track to vary the compressor displacement. The guiding cam track is provided by a cam groove having a form of a closed loop and formed in a driving plate drivingly connected to the drive shaft and to the swash plate to transmit the torque of the drive shaft to the swash plate. A fulcrum pin is provided on the swash plate and engaged in the cam groove and is movable along the guide groove toward the drive shaft as the angle of tilt of the swash plate is decreased.

    摘要翻译: 可变排量压缩机具有轴向可滑动地安装在轴向驱动轴上的套筒和可倾斜地连接到套筒的斜盘。 旋转斜盘的倾斜角度可以通过套筒的轴向运动和旋转斜盘沿引导凸轮轨道的运动而变化,以改变压缩机的位移。 引导凸轮轨道由具有闭环形式的凸轮槽提供,并形成在与驱动轴驱动连接的驱动板和斜盘中,以将驱动轴的扭矩传递到旋转斜盘。 支撑销设置在斜盘上并与凸轮槽接合,并随着斜板倾斜角度的减小而沿导向槽向驱动轴移动。

    LIQUID CHROMATOGRAPH DEVICE
    9.
    发明申请
    LIQUID CHROMATOGRAPH DEVICE 有权
    液相色谱仪

    公开(公告)号:US20080296209A1

    公开(公告)日:2008-12-04

    申请号:US12037111

    申请日:2008-02-26

    IPC分类号: G01N30/38 G01N30/24 G01N30/62

    摘要: This liquid feeding system has the first and second pumps each of which is provided with a plunger. Liquid sucked through each of the pump suction ports is discharged out of the discharging port through the first pump and/or second pump. Under the starting operation mode, the second pump is stopped and only the first pump is operated. When the discharging pressure at the discharging port reaches up to a predetermined value, the starting operation mode is changed over to the normal operation mode. Under the normal operation mode, the first pump is stopped and only the second pump is operated.

    摘要翻译: 该液体供给系统具有第一和第二泵,每个泵设有柱塞。 通过每个泵吸入口吸入的液体通过第一泵和/或第二泵排出排出口。 在启动运行模式下,第二个泵停止运转,只有第一个泵运转。 当排出口的排出压力达到预定值时,启动操作模式转换到正常操作模式。 在正常运行模式下,第一个泵停止运转,只有第二个泵运转。

    Pump for liquid chromatography
    10.
    发明申请
    Pump for liquid chromatography 失效
    泵用于液相色谱

    公开(公告)号:US20050023205A1

    公开(公告)日:2005-02-03

    申请号:US10902028

    申请日:2004-07-30

    摘要: The invention provides a pump for liquid chromatography excellent in feeding liquid stably at an extremely low flow rate with high accuracy and in discharging bubbles at startup. At startup, a first plunger feeds solvent at a large flow rate to discharge bubbles in a pump and to fill the solvent into the pump in a short time and in a normal operation, the first plunger is stopped and the second plunger is pushed into a second pressure chamber at a low speed to feed the solvent at a low flow rate. When the second plunger reaches full stroke, the second plunger is pulled back at a high speed and at the same time the first plunger is pushed into a first pressure chamber in synchronization with the pullback of the second plunger to control the flow rate passing a discharge passage to a constant value at all times by a controller. Further, while the second plunger feeds the solvent, the first plunger is slightly pushed into the first pressure chamber to keep pressure in the first pressure chamber at pressure equal to or less than pressure in the second pressure chamber.

    摘要翻译: 本发明提供了一种液体色谱泵,其具有以极高的精度稳定地以极低的流量供给液体并在起动时排出气泡的液体色谱。 在启动时,第一柱塞以大流量供给溶剂以排出泵中的气泡并在短时间内和正常操作中将溶剂填充到泵中,使第一柱塞停止,将第二柱塞推入 第二压力室以低速进料以低流量进料溶剂。 当第二柱塞达到全行程时,第二柱塞被高速拉回,同时第一柱塞与第二柱塞的回退同步地被推入第一压力室,以控制通过排放的流量 任何时候都由控制器传递给恒定值。 此外,当第二柱塞进料溶剂时,第一柱塞稍微推入第一压力室,以将第一压力室中的压力保持在第二压力室中等于或小于压力的压力。