Rotor blade outer tip seal apparatus
AssigneeUnited Technologies Corporation
InventorsKevin D. Carpenter, John D. Wiedemer, Paul A. Smith, Jr.
Life of this patent
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Abstract
A shroud for a rotor assembly disposed within a case is provided. The shroud includes suspension apparatus, a control ring, and a blade outer air seal. The suspension apparatus is disposed between the control ring and the case. The control ring includes a body and a first attachment mechanism. The blade outer air seal includes a second attachment mechanism. The first and second attachment mechanisms cooperate to secure the blade outer air seal to the control ring.
Claims26
A shroud for a rotor assembly disposed within a case, comprising:
- a control ring, including a body having an inner radial surface, a forward and aft surface, and first attachment means extending out from said inner radial surface, wherein said body includes a first thermal zone and a second thermal zone;
- means for compliantly suspending said control ring within the case, wherein said control ring is attached to said means for com pliantly suspending;
- and
- a blade outer air seal, having second attachment means, wherein said first and second attachment means cooperate to attach said blade outer air seal to said control ring.
A shroud for a gas turbine rotor assembly disposed within a case, comprising:
- a control ring, including a body having an inner radial surface, a forward and aft surface, and first attachment means extending out from said inner radial surface, wherein said body includes a first thermal zone and a second thermal zone;
- means for compliantly suspending said control ring within the case, wherein said control ring is attached to said means for compliantly suspending;
- and
- a blade outer air seal, having second attachment means, wherein said first and second attachment means cooperate to attach said blade outer air seal to said control ring.
An apparatus for compliantly suspending a blade outer air seal within a case, comprising:
- a control ring, having means for attaching the blade outer air seal;
- a hoop with an inner radial surface, fixed within the case;
- and
- a plurality of cantilevered leaves, attached to said hoop inner radial surface and to said control ring, each said leaf having a length, a width, and a thickness, wherein each said cantilevered leaf extends lengthwise substantially parallel to said hoop, and said control ring is fastened to said cantilevered leaves.
Dependencies are inferred from the claim text.