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:
Nov. 04, 2008
Filed:
May. 24, 2004
Anthony B Parry, Derby, GB;
Anthony B Parry, Derby, GB;
Rolls-Royce plc, London, GB;
Abstract
Within an intake for a gas turbine engine provision is provided through stator vanesin the stator whereby back pressure from a necessary obstructioncan be utilised to balance forward pressure variations caused by intake droop or crosswinds in order to reduce those forward pressure detriments for more efficient engine operation according to a desired objective regime. Typically the flow through the intakeis analysed and then an appropriate positioning of the stator vanesdetermined in order to provide approximate balance between the forward pressures and back pressures. Normally, a combination of camber variation of stator vanesand stagger variation of stator vanesare utilised in order to achieve a desired momentum balance around the circumference of the intakeIt will be understood that both the forward pressures and the back pressures are differentially variable about the circumference such that one opposes the other.