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US 12,180,842 B2Granted
Self-guiding carbon seal system
AssigneeRtx Corporation
InventorsJoseph H. Polly, Sean P. McGee, Joseph B. Phelps
Life of this patent
Estimating the term…
Abstract
An apparatus has a first member, a shaft rotatable relative to the first member about an axis, and a seal system. The seal system has: a seal carried by the first member and having a seal face; and a seat carried by the shaft and having a seat face in sliding sealing engagement with the seal face. The seal system is a dry face seal system. The seat further includes a section having: an outer diameter surface encircled by the seal; and a rim.
Claims20
A method for assembling an apparatus, the apparatus comprising:
- a first member;
- a shaft rotatable relative to the first member about an axis;
- and
- a seal system comprising:
- a seal carried by the first member and having a seal face;
- and
- a seat carried by the shaft and having a seat face in sliding sealing engagement with the seal face,
- wherein:
- the seal is a carbon seal;
- the seal system has a bellows spring axially biasing the seal into engagement with the seat;
- the seal system is a dry face seal system;
- the seat further comprises a section having:
- an outer diameter surface encircled by the seal;
- and
- a rim,
- the method comprising:
- mounting the seal to the first member so as to be cantilever supported by the bellows spring;
- and
- installing the seat so that the section passes radially within the seal, the installing causing the section to contact the carbon portion of the seal and radially shift the seal.
16 more elements
A method for using an apparatus, the apparatus comprising:
- a first member;
- a shaft rotatable relative to the first member about an axis;
- and
- a seal system comprising:
- a carbon seal carried by the first member and having a seal face;
- and
- a seat carried by the shaft and having a seat face in sliding sealing engagement with the seal face,
- wherein:
- the seal system is a dry face seal system;
- the seat further comprises a section having:
- an outer diameter surface encircled by the carbon seal;
- and
- a rim,
- the method comprising:
- rotating the shaft relative to the first member about the axis;
- and
- a dynamic radial excursion of the shaft relative to the first member causing contact between the seat section outer diameter surface and an inner diameter surface of the carbon portion of the carbon seal.
14 more elements
Dependencies are inferred from the claim text.