Method for producing coupled turbine vanes, and turbine vanes
AssigneeIHI Corporation
InventorFumiaki Watanabe
Life of this patent
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Abstract
Coupled turbine vanes having an axis are produced by arranging a plurality of first fabrics of ceramic fibers in radial directions relative to the axis to constitute a plurality of vane sections, arranging a second fabric of the ceramic fibers in a circumferential direction relative to the axis, connecting the first fabrics with the second fabric by bending first ends of the first fabrics to lay them on the second fabric in parallel, and impregnating the plurality of first fabrics connected with the second fabric with the matrix.
Claims6
A method for producing coupled vanes of a turbine having an axis, comprising:
- arranging a plurality of first fabrics of ceramic fibers in radial directions relative to the axis to form a plurality of vane sections;
- arranging a second fabric of the ceramic fibers in a circumferential direction relative to the axis;
- connecting the first fabrics with the second fabric by bending and laying first ends of the first fabrics on the second fabric in parallel;
- laying third fabrics of the ceramic fibers, each of the third fabrics having a flange section, on the first fabrics;
- bending the flange sections to make ends of the flange sections overlap with each other and to make the flange sections form a platform section;
- incorporating the first fabrics connected with the second fabric into a mold to mold the first and second fabrics into a unitary body;
- and
- impregnating the plurality of first fabrics and the second fabric molded into the unitary body with a matrix.
Coupled vanes of a turbine having an axis, comprising:
- a plurality of vane sections comprising a plurality of first fabrics of ceramic fibers arranged in radial directions relative to the axis;
- a tip shroud section or an outer band section, wherein a second fabric of the ceramic fibers is arranged in a circumferential direction relative to the axis;
- and
- a platform section wherein third fabrics of the ceramic fibers, each of the third fabrics having a flange section, are laid on the first fabrics, and the flange sections are bent to make ends of the flange sections overlap with each other and to make the flange sections form the platform section,
- wherein the first fabrics are connected with the second fabric by bending and laying first ends of the first fabrics on the second fabric in parallel,
- wherein the first and second fabrics are molded into a unitary body by incorporating the first fabrics connected with the second fabric into a mold, and
- wherein the plurality of first fabrics and the second fabric molded into the unitary body is impregnated with a matrix.
Dependencies are inferred from the claim text.