Abstract:
A pulsed combustion device includes a support structure (25) and a combustor carousel (52) supported by the support structure (25) and rotating relative thereto about an axis (500). The carousel (52) has a number of combustion conduits (50) in a circumferential array. Each conduit cyclically receives a charge and discharges combustion products of the charge. A venturi effect may help control fuel/air charge leakage from a flowpath spanning the carousel (52) and a stationary manifold (60).
Abstract:
A method of forming a reinforced polymeric component includes securing a plurality of pins within a mold and wrap ping reinforcing fibers around the pins to form a web of reinforcing fibers. The web of reinforcing fibers has a plurality of layers. The method of forming a reinforced polymeric component further includes adding a polymer to the mold and processing the polymer to form a molded polymeric component that contains the pins and the web of reinforcing fibers. A reinforced polymeric component includes a web of reinforcing fibers wrapped around a plurality of pins. The web of reinforcing fibers includes a plurality of layers. The reinforced polymeric component further includes a molded and processed polymer containing the web of reinforcing fibers and pins.
Abstract:
A machine for fabricating a fiber-reinforced component by additive manufacturing is disclosed. The machine may have a surface, a matrix feed configured to deposit a plurality of matrix layers on the surface, and a fiber feed configured to deposit a fiber layer on at least one of the plurality of matrix layers. The deposition of the plurality of matrix layers and the fiber layer may be controlled by a computer.
Abstract:
Plated polymeric gas turbine engine parts and methods for fabricating lightweight plated polymeric gas turbine engine parts are disclosed. The parts include a polymeric substrate plated with one or more metal layers. The polymeric material of the polymeric substrate may be structurally reinforced with materials that may include carbon, metal, or glass. The polymeric substrate may also include a plurality of layers to form a composite layup structure.
Abstract:
An airfoil is disclosed. The airfoil may comprise a leading edge, a body portion and a trailing edge formed from a high-modulus plating. The body portion of the airfoil may be formed from a material having a lower elastic modulus than the high-modulus plating. The high-modulus plating may improve the stiffness of the trailing edge, allowing for thinner trailing edges with improved fatigue life to be formed.