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.

Means for indicating the profile of a workpiece

Abstract: Apparatus for indicating the profile of a workpiece comprises a probe driven in mutually perpendicular axes to follow the workpiece profile, and means provided to display the movements of the probe as an indication of the workpiece profile. A control system associated with the probe and its driving means ensures that the probe is driven at an optimum rate.

Closed loop control system having plural modes of operation

Abstract: A closed loop control system has at least two modes of operation - a rapid response and a damped response whereby an error is reduced to zero rapidly, but with negligible overshoot. The change from one mode to another is made in dependence upon a predetermined ratio between the error and error velocity signals.

Aero engine development for the future

Abstract: A historical survey of the development and future trends in aero engine design and performance are given. Emphasis is placed on the achievement of low cost of ownership through high fuel efficiency...

Method of making an integral bladed member

Abstract: A method of manufacturing a bladed disc from a fiber reinforced composite material which comprises injecting a mixture of short fibers and a matrix material into a dividable die so configured as to define the form of a disc having integral radially extending aerofoil blades. The mixture is injected into the die at such a location that the short fibers within the aerofoil-defining portions of the die are radially aligned. The die contains two support rings which are coaxially disposed within the bladed disc after injection molding so as to provide radial support for the aerofoil blades of the thus formed bladed disc. The method may be modified to provide the bladed disc with an integral shroud.

Method for producing a composite structure

Abstract: A method of producing a composite structure consists of winding a resin impregnated filament tow onto a former or formers having surfaces which correspond with a portion of the finished article, removing the fibre sheets from the former or formers, and placing them in a mould which corresponds in shape to that of the complete article, and pressing the fibre within the mould to consolidate the finished article.