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:
Dec. 01, 2009
Filed:
Jun. 06, 2006
Applicant:
Reza Manzoori, Derby, GB;
Inventor:
Reza Manzoori, Derby, GB;
Assignee:
Rolls-Royce PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 11/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A turbine stage of a gas turbine engine is surrounded by a ring of liner segments. The liner segments can be moved radially in unison towards and away from the tips or fins of blades, by rotation of a connected unison ring, so as to avoid blade fin rub. Alternatively, the segments can be moved in a common direction by bodily movement of the connected unison ring so as to avoid blade fin rub during off axis rotation of the turbine stage.