The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2001
Filed:
Sep. 23, 1999
Gary D Lock, Bath, GB;
Martin L G Oldfield, Oxford, GB;
Rolls-Royce plc, London, GB;
Abstract
A gas turbine engine component, typically either a turbine blade or vane or combustor, comprising a wall (,) with a first surface (,) which is adapted to be supplied with a flow of cooling air, and a second surface (,) which is adapted to be exposed to a hot gas stream (,). The wall (,) further having defined therein a plurality of passages (,), the passages (,) defined by passage walls (,), which interconnect a passage inlet (,) in said first surface (,) to a passage outlet (,) in said the second surface (,). The passages (,), cooling air and the hot gas stream (,) arranged such that in operation a flow (,) of cooling air is directed through said passages (,) to provide a flow (,) of cooling air over at least a portion of the second surface (,). The cross sectional area of each of the passages (,) progressively decreasing overall, in the direction of cooling air flow (,) through the passage (,), such that in use the flow of cooling air (,) through the passage (,) is accelerated. The passage walls (,) of the cooling passages (,) preferably diverging laterally across the wall (,) of the component whilst perpendicular to the wall (,) they converge so that overall the cross-sectional area decreases.