D03D25/00

Integral ceramic matrix composite fastener with polymer rigidization
11370714 · 2022-06-28 · ·

A gas turbine engine component includes a gas turbine engine component body formed of a ceramic matrix composite material having at least one fastener integrally formed with the gas turbine engine component body as a single-piece structure. The gas turbine engine component body initially comprises a rigidized preform structure formed from a polymer based material. The at least one fastener connects the gas turbine engine component body to an engine support structure.

Fully-formed volumetrically woven article
11346023 · 2022-05-31 ·

A volumetric weaving approach employs a vertical aspect of woven warp and weft fibers to generate volumetric structures through formation of tie-downs. Tie downs define warp and weft fibers that take a vertical path or component extending perpendicular to a weave plane. Independently controlled heddles provide selective warp fibers control, and a two-dimensional creel that dispenses the warp fibers at differing feed rates allows manipulation of the fibers into three dimensional structures or portions. As a shuttle draws the weft fiber, different layers are raised and lowered to lend a vertical axis to the resulting volumetric structure. Interconnections between the portions include the use of the tie downs to connect multiple portions to define 3-dimensional panels of a finished article such as a shoe. A single pass defining all the interconnected portions of the shoe generates the fully formed shoe without subsequent cutting and seaming of different textile panels.

Airfoil with flange formed of wishbone-shaped fiber layer structure

A vane arc segment includes an airfoil fairing that has a fairing platform and an airfoil section that extends there from. The fairing platform defines a gaspath side and a non-gaspath side and includes a flange that projects from the non-gaspath side. The airfoil fairing is formed of a fiber-reinforced composite that includes a wishbone-shaped fiber layer structure that has first and second arms that converge and merge into a single leg. The first and second arms are formed of fiber plies comprised of a network of fiber tows. The single leg comprises fiber tows from each of the fiber plies of the first and second arms. The fiber tows of the first arm are interwoven in the single leg with the fiber tows of the second arm. The first arm, the second arm, or the single leg forms at least a portion of the flange.

Insulating double-knit fabric

An improved insulating performance fabric has a double-knit body, formed with traditional, relatively smooth, outer surfaces, and an inner surface with the form of multiple fabric “bubbles” separated, e.g., by a grid pattern of intersecting grooves. An insulating, double-knit performance fabric of this disclosure may also be found in the form of a garment comprising the insulating, double knit performance fabric, or in the form of fabric article comprising the insulating, double knit performance fabric, etc.

WOVEN QUILT
20230250564 · 2023-08-10 ·

The present disclosure relates to a textile fabric comprising a casing of three layers, the three layers comprising a top layer, a bottom layer, and an intermediate layer that is arranged between the top layer and bottom layer, wherein the top layer, the intermediate layer, and the bottom layers are bonded together through weaving.

Method And Device For Generating Jacquard Pattern, Electronic Device And Readable Storage Medium
20220119992 · 2022-04-21 ·

A method and device are used for generating a jacquard pattern. The method comprises: acquiring structure information of a unit structure of a preform to be prepared, the structure information comprises a warp yarn column number, a warp yarn layer number, a weft yarn column number and a weft yarn layer number, a positional relationship between the warp yarns and the weft yarns of the unit structure of a preform to be prepared; obtaining a row number and a column number of the jacquard pattern to be generated, and correspondence between each pixel in the jacquard pattern to be generated and the warp yarns and weft yarns of the unit structure of the preform to be prepared; and obtaining a pixel value of each pixel, and generating the jacquard pattern to be generated.

Method for manufacturing a turbine engine vane made of a composite material, resulting vane and turbine engine including same

The invention relates to a method of fabricating a turbine engine blade out of composite material comprising fiber reinforcement densified by a matrix, the blade comprising an airfoil, a platform situated at a longitudinal end of the airfoil, and at least one functional element projecting from the outside face of the platform. The method comprises: making a single-piece fiber blank by multilayer weaving; shaping the fiber blank to obtain a single-piece fiber preform having a first portion (302) forming a preform for the blade airfoil (320) and a second portion (314) forming a preform for the platform (340) and at least one preform for a functional element (352; 354); and densifying the fiber preform with a matrix. The second preform portion comprises a set of yarn layers interlinked by weaving with at least one zone of non-interlinking being provided to make it possible to deploy the functional element preform relative to the first platform preform.

Multilayer structured fabric and fiber product

A task is to provide a multilayer structured cloth and a fiber product which are excellent in lightweight properties for bulkiness, impressive soft texture, high cushioning properties, low draping properties, and sweat absorbing and quick drying properties, and the task is achieved by a multilayer structured cloth including front and back ground structure portions, a connecting yarn which connects the front and back ground structure portions to each other, and an insert yarn, wherein at least one of the front and back ground structure portions contains a crimped fiber or a spun yarn.

Propeller blade or vane for an aircraft with particular weaving of a fibre preform receiving a bladder filled with a shaping foam

A blade includes a fibrous reinforcement having a three-dimensional weave densified by a matrix, the fibrous reinforcement including, in a single woven piece, a root and an aerodynamic profile part extending along a longitudinal direction between the root part and a blade tip portion and along a transverse direction between a leading and a trailing edge portion. The profile part includes first and second suction side and pressure side faces. The fibrous reinforcement includes a separation forming a housing inside the fibrous reinforcement, a bladder filled with a shaping foam being present in the housing. The separation extends over a separation zone inside the profile part of the fibrous reinforcement comprised between the root part and the blade tip portion in the longitudinal direction and between the leading and the trailing edge portion in the transverse direction. The separation opens to the outside of the profile part.

Fibrous structures comprising regions having different micro-CT intensive property values and associated transition slopes

Fibrous structures containing solid additives, and more particularly, fibrous structures containing two regions that exhibit at least one common micro-CT intensive property that differs in value and wherein the common micro-CT intensive property transitions between the two regions and methods for making same are provided.