Bearing assembly for electrical generator
AssigneeSafran Electrical & Power
InventorsJohn Gregory Snelick, Kevin Patrick McCrea
Life of this patent
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Abstract
A bearing assembly for an electrical generator includes a frame, a bearing liner and a ring. The frame is configured to connect with a housing of an electrical generator. The frame includes a frame opening and is made from a first material. The bearing liner connects with the frame. The bearing liner is made from a second material, which is dissimilar from the first material. At least a portion of the bearing liner passes through the frame opening. The ring surrounds the bearing liner. The ring contacts the frame and the bearing liner and maintains a clearance between the portion of the bearing liner passing through the frame opening and the frame.
Claims20
An electrical generator comprising:
- a housing;
- a stator mounted in the housing;
- a drive shaft extending from the housing;
- a rotor shaft provided in the housing and mounted on the drive shaft;
- a rotor mounted on the rotor shaft for rotation with the rotor shaft;
- and
- a bearing support assembly including
- a frame connected with the housing, the frame including a frame opening through which the rotor shaft extends, the frame being made from a first material;
- a bearing liner connected with the frame, the bearing liner being made from a second material, which is dissimilar from the first material, and at least a portion of the bearing liner passing through the frame opening, wherein the bearing liner includes a first bearing support surface and a second bearing support surface separated by an internal wall;
- a ring surrounding the bearing liner, the ring contacting the frame and the bearing liner and maintaining a clearance between the portion of the bearing liner passing through the frame opening and the frame, wherein the ring is axially offset from the internal wall, and
- a bearing received in the bearing support assembly and contacting the rotor shaft and the bearing liner.
A bearing support assembly for an electrical generator comprising:
- a frame configured to connect with a housing of the electrical generator, the frame including a frame opening and being made from a first material;
- a bearing liner connected with the frame, the bearing liner being made from a second material, which is dissimilar from the first material, and at least a portion of the bearing liner passing through the frame opening, wherein the bearing liner includes a first bearing support surface and a second bearing support surface separated by an internal wall;
- and
- a ring surrounding the bearing liner, the ring contacting the frame and the bearing liner and maintaining a clearance between the portion of the bearing liner passing through the frame opening and the frame, wherein the ring is axially offset from the internal wall.
An electrical generator comprising:
- a housing;
- a stator mounted in the housing;
- a drive shaft extending from the housing;
- a rotor shaft provided in the housing and mounted on the drive shaft;
- a rotor mounted on the rotor shaft for rotation with the rotor shaft;
- and
- a bearing support assembly including
- a frame connected with the housing, the frame including a frame opening through which the rotor shaft extends, the frame being made from a first material;
- a bearing liner connected with the frame, the bearing liner being made from a second material, which is dissimilar from the first material, and at least a portion of the bearing liner passing through the frame opening, wherein the bearing liner includes a radially outwardly extending flange and a plurality of ears each extending radially outwardly from the radially outwardly extending flange, each ear having a fastener opening, and wherein the bearing liner includes an annular section extending axially away from the radially outwardly extending flange, wherein the annular section defines an end face normal, to a centerline of the bearing liner, and an anti-rotation feature is provided in the end face;
- a ring surrounding the bearing liner, the ring contacting the frame and the bearing liner and maintaining a clearance between the portion of the bearing liner passing through the frame opening and the frame, and
- a bearing received in the bearing support assembly and contacting the rotor haft and the bearing liner.
Dependencies are inferred from the claim text.