Discharge porting design for screw compressor

    公开(公告)号:US06705849B2

    公开(公告)日:2004-03-16

    申请号:US10201175

    申请日:2002-07-22

    IPC分类号: F04C1816

    摘要: A screw compressor including a housing having a discharge port; a plurality of rotors including at least one male rotor and at least one female rotor rotatably disposed in the housing for generating a discharge flow through the discharge port, the discharge port having a radial portion and an axial portion, wherein the discharge port is positioned relative to the plurality of rotors so that the radial portion opens prior to the axial portion whereby kinetic energy in the discharge flow can be recovered.

    Screw compression flow guide for discharge loss reduction
    3.
    发明授权
    Screw compression flow guide for discharge loss reduction 有权
    螺杆压缩导流管用于减少放电损耗

    公开(公告)号:US06692243B1

    公开(公告)日:2004-02-17

    申请号:US10231403

    申请日:2002-08-27

    IPC分类号: F01C124

    CPC分类号: F04C2/16 F04C2250/102

    摘要: A screw compressor includes a housing having a discharge port; and at least two rotors disposed in the housing for generating opposed discharge flows through the discharge port, wherein the discharge port has edges defining a discharge opening, and wherein the edges are rounded so as to smooth flow of the discharge flows past the edges.

    摘要翻译: 螺杆式压缩机包括具有排出口的壳体; 以及设置在所述壳体中的至少两个转子,用于产生相对的排出流动通过所述排出口,其中所述排出口具有限定排出口的边缘,并且其中所述边缘是圆形的,以便平滑所述排出流经过所述边缘的流动。

    Variable speed drive chiller system
    4.
    发明授权
    Variable speed drive chiller system 有权
    变速驱动冷冻机系统

    公开(公告)号:US06434960B1

    公开(公告)日:2002-08-20

    申请号:US09895684

    申请日:2001-07-02

    IPC分类号: F25B4900

    摘要: The compressor in a refrigeration system is controlled solely by a variable speed drive which controls the motor of the compressor by virtue of the varying of the frequency of the electricity provided to the motor. To minimize the initial cost and to minimize operating costs, the variable speed drive is cooled by refrigerant from the refrigeration system which permits the use of a smaller drive, and the variable speed drive is operated at, or approaching, a unity power factor.

    摘要翻译: 制冷系统中的压缩机仅由变速驱动器控制,变速驱动器通过改变提供给电动机的电力的频率来控制压缩机的电动机。 为了最小化初始成本并且最小化操作成本,变速驱动器由制冷系统的制冷剂冷却,制冷系统允许使用较小的驱动器,并且变速驱动器在或接近单位功率因数下运行。

    Variable speed drive chiller system
    6.
    再颁专利
    Variable speed drive chiller system 有权
    变速驱动冷冻机系统

    公开(公告)号:USRE39597E1

    公开(公告)日:2007-05-01

    申请号:US10682850

    申请日:2003-10-09

    IPC分类号: F25B49/00 F25B27/00 F25B1/00

    摘要: The compressor in a refrigeration system is controlled solely by a variable speed drive which controls the motor of the compressor by virtue of the varying of the frequency of the electricity provided to the motor. To minimize the initial cost and to minimize operating costs, the variable speed drive is cooled by refrigerant from the refrigeration system which permits the use of a smaller drive, and the variable speed drive is operated at, or approaching, a unity power factor.

    摘要翻译: 制冷系统中的压缩机仅由变速驱动器控制,变速驱动器通过改变提供给电动机的电力的频率来控制压缩机的电动机。 为了最小化初始成本并且最小化操作成本,变速驱动器由制冷系统的制冷剂冷却,制冷系统允许使用较小的驱动器,并且变速驱动器在或接近单位功率因数下运行。