RADIAL-FACE CONTACT SEAL Russian patent published in 1995 - IPC

FIELD: turbo-machine engineering. SUBSTANCE: split sealing ring is freely mounted on the shaft and is in contact with the stop face surface of the shaft and housing. The ring is interposed between the supercharging space and oil space of the support of a gas-turbine engine. Hollows are made in one side of the ring split. The hollows are made in two sides of the ring split and arranged so that to define mirror symmetry with respect to each other. The hollows are closed over periphery. Some of the hollows are closed over periphery by housing surface, the walls of the hollows being vertical. The walls and side of ring split form sharp edges. EFFECT: enhanced reliability. 6 cl, 6 dwg