Patent ID: 7223083
Filing Date: 2007-05-29
Classification: F04C

Abstract:
1. A scroll compressor comprising: a casing; a driving motor fixedly installed in the casing; a frame fixedly installed inside the casing, for supporting a rotary shaft of the driving motor, wherein a ring shaped partition wall protrudes from a bottom of a boss receiving portion formed at a central portion of the frame, a vane side suction hole is formed at one side of the bottom of the boss receiving portion outside the partition wall, and a pair of vane side discharge holes are formed at the other side of the bottom; a fixed scroll fixedly installed at the frame, and having a first suction hole at its outermost edge and a first discharge hole at its central portion; an orbiting scroll forming a first compression chamber by being interlocked with the fixed scroll, orbiting by rotation of the rotary shaft, and having a boss portion for insertion of the rotary shaft, and an orbiting vane encompassing the boss portion, wherein the boss portion is formed at a central portion of a lower portion of the orbiting scroll and the orbiting vane is formed at an outer edge of the lower portion of the orbiting scroll at a certain interval from the boss portion; a self-rotation preventing member interposed between the frame and the orbiting scroll, for preventing self-rotation of the orbiting scroll and leading an orbiting movement; and a slide block positioned between the vane side suction hole and the pair of vane side discharge holes, inserted in the orbiting vane to be slidable in a radial direction of the frame, and forming a second compression chamber outside and inside the orbiting vane.