Abstract: A measurement device is disclosed which includes a structure adapted to be removably coupled to a Christmas tree, a sleeve operatively coupled to the structure and a flowmeter positioned at least partially within the sleeve.

Abstract: A measurement device is disclosed which includes a structure adapted to be removably coupled to a Christmas tree, a sleeve operatively coupled to the structure and a flowmeter positioned at least partially within the sleeve.

Abstract: A component comprises a multiplicity of cooling passages arranged in two intersecting arrays to form a multiplicity of cooling passage intersections. Air jet interactions are generated at cooling passage intersections when air is passed through the cooling passages. The spacing of the passages in at least one of the arrays is chosen to provide a predetermined range of intersection density in a selected region or regions of the component.

Abstract: A measurement device is disclosed which includes a structure adapted to be removably coupled to a Christmas tree, a sleeve operatively coupled to the structure and a flowmeter positioned at least partially within the sleeve.

Abstract: A core 14, for use in a casting mould to form a cavity in a cast component such as a blade or vane of a gas turbine engine, has a relatively fragile thin-walled region 22. A bead 38 is formed along a lateral edge 26 of the thin-walled portion 22 in order to reduce cracking or other damage in the thin-walled portion 22.

Abstract: An air-cooled component such as a turbine stator vane, has a row of cooling passages 8 extending from the interior 4 of the vane to the exterior. The passages 8 are inclined to a plane perpendicular to the row. The angle of inclination of each passage 8 varies with the position of the passage 8 along the row. The arrangement assists in avoiding local overheating of the vane surface.

Abstract: An aerofoil made from a sheet metal blank which is bent in the shape of an aerofoil such that it has a leading edge, a trailing edge, a pressure side and a suction side, and the blank is joined at the trailing edge. The regions of the sheet metal blank that form the leading edge, trailing edge and pressure side of the aerofoil comprise a plurality of perforations. The suction side region of the sheet metal blank is imperforate.

Abstract: A component comprises a multiplicity of cooling passages arranged in two intersecting arrays to form a multiplicity of cooling passage intersections. Air jet interactions are generated at cooling passage intersections when air is passed through the cooling passages. The spacing of the passages in at least one of the arrays is chosen to provide a predetermined range of intersection density in a selected region or regions of the component.

Abstract: An air cooled component with an internal air cooling system comprising an internal cavity which is divided into at least two compartments. The compartments are arranged in flow sequence by communication through side wall chambers formed in the wall of the component. At least one of the side wall chambers is sub-divided into a plurality of cells in flow parallel and each of the cells has at least one air entry aperture and at least one air exit aperture.

Abstract: The present invention provides methods and apparatus for acquisition, compression, and characterization of spatiotemporal signals. In one aspect, the invention assesses self-similarity over the entire length of a spatiotemporal signal, as well as on a moving attention window, to provide cost effective measurement and quantification of dynamic processes. The invention also provides methods and apparatus for measuring self-similarity in spatiotemporal signals to characterize, adaptively control acquisition and/or storage, and assign meta-data for further detail processing. In some embodiments, the invention provides for an apparatus adapted for the characterization of biological units, and methods by which attributes of the biological units can be monitored in response to the addition or removal of manipulations, e.g., treatments.

Abstract: An air cooled component with an internal air cooling system comprising an internal cavity which is divided into at least two compartments. The compartments are arranged in flow sequence by communication through side wall chambers formed in the wall of the component. At least one of the side wall chambers is sub-divided into a plurality of cells in flow parallel and each of the cells has at least one air entry aperture and at least one air exit aperture.