Seal arrangement and a brush seal for a wind turbine
AssigneeGeneral Electric Company
InventorsPeter Rogall, Meng Gao, Yuanyuan Qiu
Life of this patent
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Abstract
A seal arrangement for sealing a bearing comprising a first component and a second component which are rotatably movable with respect to each other is provided. The seal arrangement includes brush seal having an annular brush body carried by the first component and a bundle of resiliently bendable bristles. The brush seal is adapted to maintain a sealing condition when the first and second component are moved relative to each other in a non-rotational manner. Further, a brush seal and a wind turbine having a brush seal are provided.
Claims20
A seal arrangement for sealing a bearing, the bearing comprising a rotational axis, a first component and a second component, the second component comprising a sealing surface, at least one of the first component and the second component being rotatably movable around the rotational axis, the seal arrangement comprising:
- a brush seal comprising:
- an annular brush body carried by the first component;
- and
- a bundle of resiliently bendable bristles attached to the annular brush body and pre-stressed against the sealing surface with a tip portion of the bundle of resiliently bendable bristles being bent away from the first component.
A brush seal for a bearing between a first part and a second part of a wind turbine, the bearing comprising a rotational axis, an inner annular member fastened to the first part, an outer annular member fastened to the second part and a circumferential gap between the inner annular member and the outer annular member, the brush seal comprising:
- an annular brush body fastened to one of the first part and the inner annular member;
- and
- a plurality of flexible bristles attached to the annular brush body and pre-stressed against a sealing surface of one of the second part and the outer annular member with a tip portion of the plurality of resiliently bendable bristles being bent away from the one of the first part and the inner annular member.
A brush seal for a bearing between a first part and a second part of a wind turbine, the bearing comprising a rotational axis, an inner annular member fastened to the first part, an outer annular member fastened to the second part and a circumferential gap between the inner annular member and the outer annular member, the brush seal comprising:
- an annular brush body fastened to one of the second part and the outer annular member;
- and
- a plurality of flexible bristles attached to the annular brush body and pre-stressed against a sealing surface of one of the first part and the inner annular member with a tip portion of the plurality of resiliently bendable bristles being bent away from the one of the second part and the outer annular member.
A wind turbine comprising a first part and a second part, the second part comprising a sealing surface, the second part being pivot-mounted with respect to the first part using a rolling-element bearing comprising a lubricant and a rotational axis, the wind turbine further comprising a brush seal comprising:
- an annular brush body carried by the first part;
- and
- a bundle of resiliently bendable bristles attached to the annular brush body and pre-stressed against the sealing surface with a tip portion of the bundle of resiliently bendable bristles being bent away from the first part.
Dependencies are inferred from the claim text.