ROLLING-ELEMENT BEARING AND METHOD OF COUNTERING LOAD APPLIED TO ROLLING-ELEMENT BEARING
First Claim
1. A rolling-element bearing comprising:
- an inner bearing ring and an outer bearing ring defining an axial direction and a circumferential direction;
a plurality of rolling elements configured to roll circumferentially between the inner bearing ring and the outer bearing ring;
at least one oil chamber between the inner bearing ring and the outer bearing ring, each oil chamber being defined by the inner bearing ring, the outer bearing ring and an oil chamber housing fixed to one of the inner bearing ring and the outer bearing ring; and
at least one duct connected to each oil chamber for a supply of oil to the connected oil chamber.
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Accused Products
Abstract
A rolling-element bearing includes an inner bearing ring and an outer bearing ring. The inner bearing ring and the outer bearing ring define an axial direction and a circumferential direction. The rolling-element bearing includes a plurality of rolling elements. The rolling elements are configured to roll circumferentially between the inner bearing ring and the outer bearing ring. The rolling-element bearing includes at least one oil chamber. The oil chamber is between the inner bearing ring and the outer bearing ring. Each oil chamber is defined by the inner bearing ring, the outer bearing ring and an oil chamber housing. The oil chamber housing is fixed to one of the inner bearing ring and the outer bearing ring. The rolling-element bearing includes at least one duct corresponding to each oil chamber. The at least one duct is for a supply of oil to the corresponding oil chamber. Each duct extends through the bearing ring to which the oil chamber housing is fixed.
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Citations
15 Claims
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1. A rolling-element bearing comprising:
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an inner bearing ring and an outer bearing ring defining an axial direction and a circumferential direction; a plurality of rolling elements configured to roll circumferentially between the inner bearing ring and the outer bearing ring; at least one oil chamber between the inner bearing ring and the outer bearing ring, each oil chamber being defined by the inner bearing ring, the outer bearing ring and an oil chamber housing fixed to one of the inner bearing ring and the outer bearing ring; and at least one duct connected to each oil chamber for a supply of oil to the connected oil chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A gas turbine engine comprising:
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a rolling-element bearing comprising; an inner bearing ring and an outer bearing ring defining an axial direction and a circumferential direction; a plurality of rolling elements configured to roll circumferentially between the inner bearing ring and the outer bearing ring; at least one oil chamber between the inner bearing ring and the outer bearing ring, each oil chamber being defined by the inner bearing ring, the outer bearing ring and an oil chamber housing fixed to one of the inner bearing ring and the outer bearing ring; and at least one duct connected to each oil chamber for a supply of oil to the connected oil chamber.; and
further comprising;a rotating object integral with, or in an interference fit with, the bearing ring to which the oil chamber is not fixed; and a load applying component that applies a load on the rolling-element bearing in a load direction (X), which is radial with respect to the rolling-element bearing, wherein at least one oil chamber is between the applied load and the bearing ring to which the corresponding oil chamber housing is fixed, such that oil supplied to the oil chamber acts on the bearing ring to which the oil chamber housing is not fixed so as to oppose the applied load. - View Dependent Claims (13, 14)
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15. A method of countering a load applied to a rolling-element bearing that comprises:
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an inner bearing ring and an outer bearing ring defining an axial direction and a circumferential direction; a plurality of rolling elements configured to roll circumferentially between the inner bearing ring and the outer bearing ring; at least one oil chamber between the inner bearing ring and the outer bearing ring, each oil chamber being defined by the inner bearing ring, the outer bearing ring and an oil chamber housing fixed to one of the inner bearing ring and the outer bearing ring; and at least one duct corresponding to each oil chamber for a supply of oil to the corresponding oil chamber; wherein the method comprises supplying oil to the at least one oil chamber, such that oil supplied to the at least one oil chamber acts on the bearing ring to which the oil chamber is not fixed so as to oppose the applied load.
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Specification