公开(公告)号：US4575323A

公开(公告)日：1986-03-11

申请号：US613224

申请日：1984-05-23

申请人： Shoji Yoshimura

发明人： Shoji Yoshimura

IPC分类号： F01C1/16 ,  F04C28/12

CPC分类号： F04C28/125

摘要： A slide valve type screw compressor having a slide valve with a surface of chevron shape in section consisting of a couple of arcuately curved surfaces forming part of the inner wall surfaces of a rotor chamber accommodating a pair of intermeshed male and female screws, the slide valve being slidable in the axial direction of the rotors for communicating the rotor chamber with a suction port through an opening with an adjustably variable area for volumetric control of the compressor, characterized in that the slide valve is retractably protruded into a suction casing at a fore end on the side of the suction port and has the opposite outer corner portions of the curved surfaces cut off at a predetermined angle with the longitudinal axis thereof to provide a substantially triangular section with a forwardly reduced width at the protruded fore end.

摘要翻译： 一种滑阀式螺杆式压缩机，其具有滑动阀，所述滑阀具有由几个弧形曲面形成的表面，形成容纳一对相互啮合的阳螺纹和阴螺纹的转子室的内壁表面的一部分的滑动阀，所述滑阀 可沿着转子的轴向滑动，用于使转子室与吸入口通过具有可调节可变面积的开口连通，用于压缩机的体积控制，其特征在于，滑阀可伸缩地突出到前端的抽吸外壳中 在吸入口侧，并且具有与其纵向轴线成预定角度切断的弯曲表面的相对的外角部以提供在突出的前端处具有向前减小的宽度的大致三角形部分。