Back to results
US 10,233,778 B2Granted
Circumferential plenum for oil damper
AssigneeUnited Technologies Corporation
InventorsDaniel L. Gysling, Gregory M. Savela, John M. Feiereisen, Robert J. Morris
Life of this patent
Estimating the term…
Abstract
A bearing assembly is provided. The bearing assembly includes an inner race configured to couple to a shaft, an outer race disposed around the inner race, and a housing disposed around the outer race. The housing and the outer race define an annulus and a buffer region, and the buffer region defines an axial boundary of the annulus.
Claims18
A bearing assembly for a shaft configured to rotate about an axis, comprising:
- an inner race configured to couple to the shaft;
- an outer race disposed around the inner race;
- a housing disposed around the outer race, wherein the housing and the outer race define an annulus and a buffer region, wherein the buffer region defines an axial boundary of the annulus;
- and
- an inlet and an outlet defined in the housing, the outlet connected to a channel defined in the housing, the channel being positioned radially outward of the buffer region and also connected to the buffer region, and the inlet connected to the annulus.
2 more elements
A squeeze-film damper comprising:
- an outer race having an annular geometry;
- a housing disposed about the outer race;
- a first seal and a second seal between the outer race and the housing, wherein the housing, the outer race, the first seal and the second seal define a thin-film region;
- a third seal proximate the second seal and defining a buffer region between the second seal and the third seal;
- and
- an inlet and an outlet defined in the housing, the outlet connected to a channel defined in the housing, the channel being positioned radially outward of the buffer region and also connected to the buffer region, and the inlet connected to the thin-film region.
3 more elements
A gas turbine engine comprising:
- a shaft;
- an inner bearing race coupled to the shaft;
- an outer bearing race surrounding the inner bearing race, wherein the shaft and the inner bearing race are configured to rotate within the outer bearing race;
- a housing surrounding the outer bearing race, wherein the outer bearing race is configured to whirl within the housing, wherein a thin-film region and a buffer region are defined between the outer bearing race and the housing;
- and
- an inlet and an outlet defined in the housing, the outlet connected to a channel defined in the housing, the channel being positioned radially outward of the buffer region and also connected to the buffer region, and the inlet connected to the thin-film region.
3 more elements
Dependencies are inferred from the claim text.