公开(公告)号：US6045343A

公开(公告)日：2000-04-04

申请号：US7340

申请日：1998-01-15

Applicant: Ding-Guey Liou

Inventor： Ding-Guey Liou

IPC: F04C18/08 ,  F04C18/16 ,  F04C29/04 ,  F01C21/04

CPC classification number: F04C18/084 ,  F04C18/16 ,  F04C29/04

Abstract: A rotary compression equipment includes: a housing having at least two intermeshing hollow rotors rotatably mounted in the housing by two shafts, each rotor formed with a hollow portion for passing a coolant in the hollow portion for cooling the meshing rotors when rotated, and a coolant passage formed in each shaft and fluidically communicated with the hollow portion in the rotor for leading coolant from the coolant passage into the hollow portion in the rotor for removing heat of the rotors outwardly for reducing thermal expansion of the rotary equipment and increasing the efficiency of the rotary equipment.

Abstract translation: 旋转压缩设备包括：壳体，其具有至少两个相互啮合的中空转子，其通过两个轴可旋转地安装在壳体中，每个转子形成有中空部分，用于使中空部分中的冷却剂通过，以在旋转时冷却啮合转子，并且冷却剂 通道，其形成在每个轴中并与转子中的中空部分流体连通，用于将冷却剂从冷却剂通道引导到转子中的中空部分，用于向外移除转子的热量，以减少旋转设备的热膨胀，并提高 旋转设备。

公开(公告)号：US06019586A

公开(公告)日：2000-02-01

申请号：US9195

申请日：1998-01-20

Applicant: Ding-Guey Liou

Inventor： Ding-Guey Liou

IPC: F04C18/16 ,  F01C1/16

CPC classification number: F04C18/16 ,  F04C2250/201

Abstract: A screw compressor or pump includes: a housing, two intermeshing rotors respectively rotatably mounted in the housing by two shafts; each rotor having a helix tooth spirally formed on the rotor lengthwise, with the helix tooth gradually decreasing an outer diameter of a top land surface of the helix tooth corresponding to a gradually contracted rotor chamber, and having a spiral groove juxtapositioned to the helix tooth and spirally formed in the rotor lengthwise; the spiral groove having a groove bottom surface extrapolatively defining an inner cone tapered towards a suction port side; the rotor chamber having a conical wall surface extrapolatively defining an outer cone tapered towards a discharge port side, thereby forming a gradationally contracted cavity between the spiral groove and the conical wall surface of the rotor chamber as confined between the inner and outer cones for increasing the compression or pumping efficiency.

Abstract translation: 螺杆式压缩机或泵包括：壳体，两个相互啮合的转子，其分别由两个轴可旋转地安装在壳体中; 每个转子具有在转子上纵向螺旋地形成的螺旋齿，螺旋齿逐渐减小对应于逐渐收缩的转子室的螺旋齿的顶部表面的外径，并且具有与螺旋齿并置的螺旋槽， 在转子上纵向螺旋形成; 所述螺旋槽具有槽底面外推地限定朝向吸入口侧逐渐变细的内锥; 所述转子室具有锥形壁表面，其外推方式限定朝向排出口侧渐缩的外圆锥体，从而在所述螺旋槽与所述转子室的所述圆锥形壁表面之间形成渐缩缩小的空腔，限制在所述内锥和外锥之间， 压缩或泵送效率。