초록 ▼

A self aligning ring seal for sealing a rotating member such as a shaft of a gas turbine relative to the housing. The ring seal includes a housing retaining a static, resilient seal. A seal plate engages the resilient seal and the seal plate has a curved peripheral edge which permits movement of the

A self aligning ring seal for sealing a rotating member such as a shaft of a gas turbine relative to the housing. The ring seal includes a housing retaining a static, resilient seal. A seal plate engages the resilient seal and the seal plate has a curved peripheral edge which permits movement of the seal plate relative to the housing. An annular ring seal assembly extends about the shaft preferably of a carbon or other temperature-resistant material held in compression by an outer compressing ring. The ring seal assembly has a sealing face engaging the seal plate. In the event of shaft misalignment, the sealing faces of the seal plate and ring seal assembly remain in substantially full sealing contact with the misalignment being translated to the static seal.

대표청구항 ▼

A self aligning mechanical seal for sealing fluid flow between a high pressure area and a low pressure area along a stator member and an axially extending relatively rotatable member, said seal comprising: (a) a housing member extending circumferentially about said rotatable member having a retainer

A self aligning mechanical seal for sealing fluid flow between a high pressure area and a low pressure area along a stator member and an axially extending relatively rotatable member, said seal comprising: (a) a housing member extending circumferentially about said rotatable member having a retainer surface and an axially extending bearing surface; (b) a static resilient seal engaging said retainer surface; (c) an annular seal plate in said housing member having a first sealing surface engaging said static resilient seal and an opposite second sealing face spaced relatively from said first sealing face, said seal plate having an outer peripheral edge engaging said bearing surface and configured to permit the seal plate at least limited radial displacement relative to said bearing surface; and (d) a ring seal assembly in said housing member extending annularly about said rotatable member in close tolerance thereto, said ring seal assembly having opposite end faces, one of which is in sealing engagement with said second sealing face whereby misalignment of said rotatable member will be transferred to said static seal via said ring seal assembly and said seal plate to maintain substantially full sealing contact at the said one end face and second sealing face and whereby fluid is sealed at said static seal.