Rolls-royce Corporation

Samuel M Sampson

Alexander E H Fitzhugh

Jonathan Wilson

Andras D Haasz

Christopher J Burden

Michael J Westlake

Derek Clarke

A fluid flow control device has an annular fixed body with at least one aperture in an annular surface thereof. When in use, fluid is arranged to flow through the at least one aperture. A thermally responsive annular valve element is mounted concentrically with respect to the fixed body. The configuration of the annular valve element is changeable with temperature so as to control the flow of fluid through the at least one aperture.

Temperature responsive fluid flow control device

An assembly comprises first and second components provided with holes receiving a retaining element in the form of a pin, in order to retain the components together. The pin is made from a shape memory effect material, and is inserted into the holes in a straight configuration, following which a change in temperature causes a retaining portion of the pin to deform into a second configuration, in which withdrawal of the pin is prevented.

Assembly

A combustor for a gas turbine engine comprising a combustion chamber wall having formed therein at least one hole for admitting air into the combustion chamber and at least one air intake chute aligned with said hole. The air intake chutes are attached to the combustor wall in regions which, during operation, will be regions of low stress concentration.

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Bristol, United Kingdom

Samuel M Sampson