Patent ID: 6287099
Filing Date: 2001-09-11
Classification: F04C

Abstract:
A scroll compressor comprising:a fixed scroll;an orbiting scroll engaged with said fixed scroll, said scrolls forming a compression chamber each other to compress a refrigerant;a crankshaft one end of which is connected to the orbiting scroll so as to cause the orbiting scroll to revolve and through the center portion of which an oil passage is formed for passing the oil supplied by an oil pump;an oil discharge port formed at the crankshaft for discharging the oil passing through the oil passage to the outside of the crankshaft; anda by-pass operated by the centrifugal force generated by the rotation of the crankshaft to open or close the oil discharge port depending on the rotation speed of the crankshaft, and installed at the oil discharge port;wherein the by-pass comprises a ball valve installed at the oil discharge port so as to move forward or backward by the centrifugal force of the oil for opening or closing the oil discharge port; and an elastic belt wound around the crankshaft, and a hole is formed at the elastic belt and a portion of the ball valve is inserted in the hole.