초록 ▼

A seal assembly for use in an intershaft seal includes a first seal that seals to a seal plate on an inner rotor shaft, a second seal that seals to a seal plate on an outer rotor shaft, and an intermediate seal that is supported by a stator assembly and seals to the first seal and the second seal. T

A seal assembly for use in an intershaft seal includes a first seal that seals to a seal plate on an inner rotor shaft, a second seal that seals to a seal plate on an outer rotor shaft, and an intermediate seal that is supported by a stator assembly and seals to the first seal and the second seal. The intermediate seal may include a seal segment affixed to the stator assembly, a ring seal between the seal segment and the first seal, and a ring seal between the seal segment and the second seal. An intershaft seal with this seal assembly has less flex than a prior art intershaft seal and thereby results in greater durability and less seal wear.

대표청구항 ▼

[What is claimed is:] [1.]a first seal that extends circumferentially about the inner rotor shaft and seals said stator to the inner rotor shaft;a second seal that extends circumferentially about the outer rotor shaft and seals said stator to the outer rotor shaft; andan intermediate seal comprising

[What is claimed is:] [1.]a first seal that extends circumferentially about the inner rotor shaft and seals said stator to the inner rotor shaft;a second seal that extends circumferentially about the outer rotor shaft and seals said stator to the outer rotor shaft; andan intermediate seal comprising a seal segment that extends circumferentially about the inner rotor shaft and is supported by the stator assembly, and seals the space between said shafts by sealing to the first seal and the second seal independently of one another.