Patent attributes
A hydraulic seal arrangement 5 between two shafts 1, 2 rotating relatively to each other, particularly in the same sense of rotation, of especially a gas turbine engine, where the radially outer shaft 2 has an annulus 5a extending radially outwards on its circumference into which the radially inner shaft 1 projects with a fin 5b that extends radially outwards on its circumference, said annulus 5a can be filled siphon-fashion through an inlet area 5d under centrifugal effect with a hydraulic fluid in the area of the free end of the fin 5b as the shaft(s) 1, 2 rotate(s), with an opening 7 branching off from an annulus area 5e for the discharge of hydraulic fluid, the annulus 5a being formed by a first outer shell part 8 and a second outer shell part 9 situated on the shaft 2.
