Patent ID: 7578664

Claim:
An oil supply structure of a scroll compressor for supplying oil from a backpressure space, which is defined between an orbiting scroll and a main frame, into a space which is defined between a fixed scroll and the main frame, by use of an oil supply screw, which is screwed into a screw bore of the main frame perforated between the backpressure space and the space, wherein the oil supply screw includes: an orifice having a center hole longitudinally perforated through the center of an upper portion of a screw body of the oil supply screw and a slender hole continuously perforated below the center hole to have the same axis as that of the center hole; and a sludge discharger having a non-flat-plane configuration and formed at a lower entrance end of the screw body, the sludge discharger being formed by a slender rod at the lower entrance end of the screw body, a plurality of reinforcing ribs being uniformly arranged along an outer periphery of the slender rod.