Contactless axial carbon seal for a bearing housing

摘要

The seal for a gas turbine bearing has a rotary ring (3) mounted on the sleeve (15) on the side of the oil chamber (17) and a ring of carbon segments (2) not in contact with the shaft (16). The carbon segment ring engages against a support ring (9) via springs (7). The radial face of the segment ring cooperates with the rotary ring radial face, which is grooved (24).