摘要:
An article with an erosion protection layer. The erosion protection layer may include metal, intermetallic compound, ceramic or glass nanocellular foam particles or monolithic sheets. The particles are dispersed in a polymeric matrix and the monolithic sheets are infiltrated with polymeric material. The nanocellular foam ligaments have submicron cross-sectional diameters.
摘要:
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.
摘要:
본 발명은 3중 트로코이달 로터를 갖는 2단 터빈 유니트에 관한 것으로서, 본 발명의 3중 트로코이달 로터를 갖는 2단 터빈 유니트는 제1 로터와, 제2 로터와, 제3 로터와, 케이싱과 제1흡입포트 및 제2흡입포트와, 제1 토출 포트 및 제2 토출 포트를 포함하여 구성되는 3중 트로이달 로터를 갖는 터빈 유니트와; 상기 제1, 제2, 제3 로터를 유체의 힘으로 회전 시켜서 제3 로터에 연결된 구동축을 회전시켜 축에 연결되어, 발전기 또는 회전체를 회전 시키는 터빈으로 구성된다. 이와 같이 이루어지는 본 발명은 터빈 유니트를 3중 트로코이달 로터로 구성하므로 작동유체의 2단 팽창이 가능하여 작동유체를 고팽창할 수 있고, 작동유체의 에너지를 회전력으로 변환 하므로 고효율의 터빈을 구성할 수 있다.
摘要:
A fan rotor includes a rotor body with at least one slot receiving a fan blade. The fan blade has an outer surface, at least at some areas, formed of a first material and an airfoil extending from a dovetail. The dovetail is received in the slot. A spacer is positioned radially inwardly of the dovetail biasing the fan blade against the slot. The spacer includes a grounding element, which is in contact with a portion of the dovetail formed of a second material that is more electrically conductive than the first material. The grounding element is in contact with a rotating element that rotates with the rotor. The rotating element is formed of a third material. The first material is less electrically conductive than the third material. The grounding and rotating elements form a ground path from the portion of the dovetail into the rotor.
摘要:
A method of establishing a boundary for a material improvement process on a workpiece is disclosed. The method may include identifying a maximum allowable damage depth on the workpiece; identifying a maximum constant thickness line on the workpiece at an extent of the maximum allowable damage depth; identifying a peak vibratory stress gradient on the workpiece; identifying a peak combined engine stress on the workpiece; and specifying the boundary for the material improvement process on the workpiece relative to the maximum constant thickness line, peak vibratory stress gradient, and peak combined engine stress.
摘要:
A composite assembly comprises a first composite wall, a second composite wall spaced radially inward from the first outer wall, and a composite reinforcement ring attached to an outer surface of the second composite wall. The composite reinforcement ring includes at least one sidewall having an accessory mounting port formed therethrough.
摘要:
A cutting blade assembly establishes a bidirectional and/or multifaceted scissor-type cutting action to efficiently and effectively process various types of debris encountered by the cutting blade assembly. The assembly includes a cutting plate and a cutting hub configured for relative rotation. A cutting slot is formed in the cutting plate and intersects the axial face to define a cutting edge at the intersection of the cutting slot and the axial face. The cutting hub has a cutting arm positioned adjacent to the axial face. When the cutting plate and the cutting hub undergo relative rotation, the cutting arm passes adjacent to the cutting edge to perform a scissor-type cutting action.
摘要:
An article (50; 100) has a metallic substrate (22), a bondcoat (30) atop the substrate, and a thermal barrier coating (28; 27, 28) atop the bondcoat. The thermal barrier coating or a layer thereof comprises didymium oxide ore and zirconia.