Series bearing support apparatus for a gas turbine engine
First Claim
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1. A bearing support apparatus for a gas turbine engine, comprising:
- a first annular member;
a second annular member disposed within the first annular member;
first and second axially spaced-apart rolling-element bearings disposed between the first and second annular members so as to enable relative rotation of the first and second members;
a first spring support connecting the first bearing to the first member; and
a second spring support connecting the second bearing to the first member through the first spring support, such that the first and second bearings are physically supported in series relative to the first member.
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Abstract
A bearing support apparatus for a gas turbine engine, including: a first annular member; a second annular member disposed within the first annular member; first and second axially spaced-apart rolling-element bearings disposed between the first and second annular members so as to enable relative rotation of the first and second members; a first spring element mounting the first bearing to the first member; and a second spring element mounting the second bearing to the first member through the first spring element, such that the first and second bearings are physically supported in series relative to the first member.
44 Citations
20 Claims
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1. A bearing support apparatus for a gas turbine engine, comprising:
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a first annular member; a second annular member disposed within the first annular member; first and second axially spaced-apart rolling-element bearings disposed between the first and second annular members so as to enable relative rotation of the first and second members; a first spring support connecting the first bearing to the first member; and a second spring support connecting the second bearing to the first member through the first spring support, such that the first and second bearings are physically supported in series relative to the first member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A bearing apparatus for a gas turbine engine, comprising:
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a stationary, annular frame; a first spring support comprising annular forward and aft rings interconnected by an annular array of axially-extending first spring fingers, wherein the forward ring is mounted to the frame; a second spring support comprising annular forward and aft rings interconnected by an annular array of axially-extending second spring fingers, the aft ring mounted to the aft ring of the first spring support; a roller bearing carried by the aft ring of the second spring support; a ball bearing carried by the forward ring of the second spring support; and a shaft mounted in the roller and ball bearings. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification