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.

Pod installation for a gas turbine engine

Abstract: A gas turbine engine pod installation comprises a core engine with a stiff carcase from which the engine is supported from a pylon. The core engine drives a fan which operates within a fan casing extending to downstream of the core engine nozzle so that the core and fan flows are mixed to provide propulsive thrust when they exit from the fan duct nozzle. The fan casing is supported from the core engine carcase by forward and rearward supports so that these supports, the fan casing and the carcase form a stiff loop of structure which supports and stiffens the carcase.

Rotor for fluid flow machine

Abstract: A filler member for a rotor of a turbomachine in which the rotor is of the type comprising a body provided with a peripheral groove. Each side of the groove has a flange which has a surface facing radially inwards. A circumferential array of blades, each of which has a root shaped to engage the inward facing surfaces of the flanges and is capable of sliding along the groove. At least one of the flanges has a first recess therein to enable the blades to be loaded into, and removed from the groove. The filler member comprises, a base portion extending along the groove below the roots of one or more of said blades and has at least one tab connected to the base portion extending outwardly therefrom. The tab is movable relative to the base portion between a first position in which the tab is clear of said first recess and thereby allows the filler member to move along the groove and a second position in which the tab is located in the recess and so prevents said filler member from moving along the groove. At least one second recess is defined in said filler member in which the root of one of the blades located to prevent them moving around the groove.

Annular seal for a gas turbine engine

Abstract: An annular seal for a gas turbine engine comprises a stacked plurality of Belleville washers with at least some of their abutting peripheries held together by U-section rings. If only those peripheries pointing toward a lower pressure area are retained together, gas pressure will hold the other peripheries together. Because the U-section rings do not prevent the washers from changing the angle of their section, relatively large axial motion between the sealed members may be tolerated.