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US 5,178,400 AGranted
Squeeze film damper seal
AssigneeGeneral Electric Company
InventorAnant P. Singh
Life of this patent
Estimating the term…
Abstract
An improved shaft damper bearing utilizing spaced apart piston ring seals to seal off an annular squeeze film space between the rings, includes diagonal surface cross-section ring grooves in the bearing housing with diagonal cross-section rings in the housing grooves adapted to engage a bearing support undergoing radial motion in the housing.
Claims13
A composite metal-non-metal piston ring seal for squeeze film dampers comprising in combination
- (a) a metal right angle member,
- (b) a non-metal section having a trapezoid cross-section with three right angle sides closed by a diagonal side and fitted in said angle member in right angle to right angle nesting relationship with said non-metal section projecting from said angle member wherein one of said right angle sides not in nesting relationship with said angle member projects beyond said angle member and is open for engaging a bearing race of the squeeze film damper, said piston ring seal being positioned in a groove formed in a housing of the squeeze film damper and said metal right angle member being positioned in a substantially right angle to right angle relationship with two walls of said groove.
A composite metal-non-metal piston ring seal for squeeze film dampers comprising in combination:
- (a) a metal right angle member;
- (b) a non-metal section having a trapezoid cross-section with three right angle sides closed by a diagonal side and fitted in said angle member in right angle to right angle nesting relationship with said non-metal section projecting from said angle member, said piston ring seal being positioned in a groove formed in a housing of the squeeze film damper and said metal right angle member being positioned in a substantially right angle to right angle relationship with two walls of said groove and said diagonal side of said non-metal section being spaced from said groove to form a diagonal fluid zone;
- and
- (c) means intermediate said diagonal fluid zone for supplying inlet oil immediately against said diagonal side to improve sealing.
1 more element
Dependencies are inferred from the claim text.