SCROLL COMPRESSION DEVICE

摘要

In a scroll compressor in which pressing force of an orbiting scroll against a fixed scroll is adjusted with an oil groove (81) formed in a thrust sliding surface between an movable end plate (51) and a fixed end plate, at least in a region serving as a suction space (50 L) of fluid in an outer peripheral portion of a compression chamber (50), an outer seal length (L1) from an outer peripheral edge of the oil groove (81) formed in the thrust sliding surface (80) to an outer edge (86) of the movable end plate (51) is smaller than an inner seal length (L2) from an inner peripheral edge of the oil groove (81) to a peripheral edge of the compression chamber (50) so as to reduce occurrence of a sealing failure and a lubrication failure, overturn of the orbiting scroll (5), and performance degradation of the compressor.