A raft assembly for a gas turbine engine is provided. The raft assembly includes a rigid raft formed of a rigid material that has an electrical system and/or a fluid system embedded therein. The raft assembly further includes one or more clamps for mounting tubular members to the raft. The or each c
A raft assembly for a gas turbine engine is provided. The raft assembly includes a rigid raft formed of a rigid material that has an electrical system and/or a fluid system embedded therein. The raft assembly further includes one or more clamps for mounting tubular members to the raft. The or each clamp has a first clamp block and a second clamp block which, in use, clamp together to grip a tubular member between the blocks. The first block is fixed to the raft. The or each clamp further has a fastener operatively extending between the blocks. The fastener is tightenable to apply a clamping load between the blocks, and releasable to remove the clamping load such that the second block can be moved relative to the first block to allow the tubular member to be received between or removed from between the blocks.
대표청구항▼
1. An electrical raft assembly for a gas turbine engine, the electrical raft assembly comprising: a rigid raft formed of a rigid material that has an electrical system comprising electrical conductors embedded therein, anda mounting fixture for mounting the electrical raft assembly to a mounting str
1. An electrical raft assembly for a gas turbine engine, the electrical raft assembly comprising: a rigid raft formed of a rigid material that has an electrical system comprising electrical conductors embedded therein, anda mounting fixture for mounting the electrical raft assembly to a mounting structure, andone or more clamps for mounting one or more tubular members to the rigid raft;wherein:the rigid material forms at least part of an exterior surface of the electrical raft assembly, the mounting fixture being attached to a part of the exterior surface formed by the rigid material, andeach of the one or more clamps has:a first clamp block and a second clamp block which, in use, clamp together to grip each of the one or more tubulars members between the first and second clamp blocks, the first clamp block being fixed to the rigid raft, anda fastener operatively extending between the first and second clamp blocks, the fastener being tightenable to apply a clamping load between the first and second clamp blocks, and releasable to remove the clamping load such that the second clamp block can be moved relative to the first clamp block to allow the one or more tubular members to be received between or removed from between the first and second clamp blocks. 2. The electrical raft assembly according to claim 1, wherein the rigid material is a rigid composite material. 3. The electrical raft assembly according to claim 1, wherein the first block is integrally formed with the rigid raft. 4. The electrical raft assembly according to claim 1, wherein the fastener is a bolt that extends between the first and second clamp blocks. 5. The electrical raft assembly according to claim 4, wherein the bolt is housed in an anti-crush tube that extends between the first and second clamp blocks, the anti-crush tube reducing or preventing crushing of the first and second clamp blocks by the bolt. 6. The electrical raft assembly according to claim 1, wherein the first and second clamp blocks are connected by a hinge formation, the fastener being located opposite the hinge, the second clamp block being rotatable relative to the first clamp block about the hinge formation when the fastener is released to allow the one or more tubular members to be received between or removed from between the first and second clamp blocks. 7. The electrical raft assembly according to claim 6, wherein the hinge formation comprises respective inter-engaging location hooks formed in the first and second clamp blocks, the location hooks being separable when the fastener is released such that the second clamp block can also be translated away from the first clamp block. 8. The electrical raft assembly according to claim 1, wherein the first and second clamp blocks are connected by respective interlocking formations formed in the first and second clamp blocks, the fastener being located opposite the respective interlocking formations, the interlocking formations being separable when the fastener is released such that the second block can be translated away from the first block to allow the tubular member to be received between or removed from between the blocks. 9. The electrical raft assembly according to claim 1, wherein a portion of the first and second blocks applying the clamping load to the one or more tubular members is relatively flexible to spread the clamping load on the one or more tubular members, and wherein distal from the portion, the first and second clamp blocks have a relatively stiff portion arranged to spread the clamping load from the fastener throughout the first and second clamp blocks. 10. The electrical raft assembly according to claim 1, wherein the clamped blocks form an aperture in which the one or more tubular members is located. 11. The electrical raft assembly according to claim 1, further comprising a fluid system embedded in the rigid material. 12. A gas turbine engine or gas turbine engine installation, having the electrical raft assembly according to claim 1 mounted thereto. 13. The gas turbine engine or gas turbine engine installation according to claim 12, wherein: the electrical raft assembly is part of an electric system of the gas turbine engine; and the electric system further comprises a flexible cable electrically connected between the electrical raft assembly and another component of the electric system. 14. The gas turbine engine or gas turbine engine installation according to claim 12, wherein the one or more tubular members are mounted to the gas turbine engine or gas turbine engine installation by the clamps of the electrical raft assembly. 15. A method for mounting one or more tubular members to a gas turbine engine or gas turbine engine installation wherein the one or more tubular member are mounted to the gas turbine engine or gas turbine engine installation by the electrical raft assembly according to claim 1.
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