Patent ID: 6199871
Filing Date: 2001-03-13
Classification: F01D,F16J,Y02T

Abstract:
An excursion seal for sealing an axial gap between first and second adjoining annular members subject to differential axial and radial excursion therebetween during fluid channeling operation, comprising:first and second axially opposite loops integrally joined together by a coextensive web in a collective ring having a circumferential split and uniform gauge;said first loop being arcuate in section, with radially outer and inner sealing lands sized to engage a first annular groove extending axially in said first member for accommodating said axial excursion;said second loop being arcuate in section, with radially outer and inner sealing lands sized to engage a second annular groove extending axially in said seond member for accommodating said axial excursion; andsaid web being disposed radially between said outer and inner lands of said first and second loops for reducing bending moment of inertia to permit twisting of said seal to accommodate said radial excursion.