Hybrid thrust foil bearing
AssigneeBoard of Regents, The University of Texas System
InventorDaejong Kim
Life of this patent
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Abstract
According to some embodiments, a hybrid thrust foil bearing is provided. A thrust foil bearing or hybrid thrust foil bearing can comprise a disc-shaped backing plate and a bearing pad attached to the backing plate, the bearing pad having a taper portion and a flat portion, the taper portion extending from a leading edge of the bearing pad to a first angular distance and the flat portion extending from the first angular distance to a trailing edge at a second angular distance. Further, the bearing pad can comprise a bump foil coupled to the plate and a top foil disposed over the bump foil, a first edge of the top foil coupled to the backing plate at the leading edge. Additionally the bearing pad can comprise at least one orifice in the taper portion.
Claims20
A thrust foil bearing comprising:
- a disc-shaped backing plate;
- and
- a bearing pad attached to the backing plate, the bearing pad having a taper portion and a flat portion, the taper portion extending from a leading edge of the bearing pad to a first angular distance and the flat portion extending from the first angular distance to a trailing edge at a second angular distance,
- wherein the bearing pad comprises a bump foil coupled to the plate and a top foil disposed over the bump foil, a first edge of the top foil coupled to the backing plate at the leading edge, and
- wherein the bearing pad comprises at least one orifice in the taper portion, the orifice comprising an orifice opening in the top foil and an orifice tube attached to the top foil and extending though a clearance hole in the bump foil and a clearance hole in the backing plate.
Dependencies are inferred from the claim text.