Rolls-Royce Limited

About: Rolls-Royce Limited is a based out in . It is known for research contribution in the topics: Gas compressor & Rotor (electric). The organization has 624 authors who have published 623 publications receiving 10751 citations. The organization is also known as: Rolls Royce Limited.

Gas turbine jet propulsion engine

Abstract: A gas turbine engine has three turbines, the intermediate and high pressure turbines running at substantially constant corrected speed. The low pressure turbine has variable nozzle guide vanes and the low pressure compressor has variable stators so as to enable its speed to be varied, while its mass flow is arranged to be large at low speeds.

Shaft bearing assemblies

Abstract: A shaft bearing assembly is designed to allow for transverse movements of the shaft relative to fixed structure, and the bearing seal is constructed in two parts, a first part between relatively rotating components of the assembly, and a second part between relatively non-rotating components of the assembly, the second part being adapted to allow for the transverse movements of the shaft.

Turbomachine rotor blade fixings

Abstract: A dovetail type circumferential slot fixing for retaining blades of a bladed rotor assembly of a turbomachine which requires no additional loading slot. The shape and dimensions of the dovetail roots of the blades and the dovetail blade-retaining slot are such as to allow the blades to be loaded by introducing a flank of each root dovetail into the slot and rolling the blades in an axial direction. The blades are held outwards against radially inward facing faces of the blade-retaining slot by a support means which may be a detachable plate, flange member or nose bullet that engages the blade platforms.

Solar heat aperture control apparatus

Abstract: A power plant utilizing solar energy as the heat source has a radiant energy heat receiver having a controllable entry aperture for the incoming radiant energy, the aperture being defined by at least three movable shutters, each shutter having a temperature sensing device and operating means which are operable in dependence of the sensed temperature to maintain each shutter in a position corresponding to a predetermined temperature at the entry aperture.

Method of manufacturing a composite material

Abstract: A method of manufacturing a composite material which comprises filaments enclosed in a matrix of a high temperature resistant thermoplastic polymer. The method entails impregnating the filament with a first high temperature resistant thermoplastic polymer in an amount sufficient only to lightly bind the fibres together. The bound fibres are then interposed between sheets of a second thermoplastic polymer and the whole structure subjected to heat and pressure for a time sufficient to ensure impregnation of said second thermoplastic polymer into said filaments and diffusion of the first thermoplastic polymer into the second thermoplastic polymer.