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:
Aug. 04, 2015
Filed:
Jun. 04, 2012
Yuan Dong, Glastonbury, CT (US);
Lisa I. Brilliant, Middletown, CT (US);
Daniel Carminati, Berlin, CT (US);
Steven J. Sirica, Ellington, CT (US);
Yuan Dong, Glastonbury, CT (US);
Lisa I. Brilliant, Middletown, CT (US);
Daniel Carminati, Berlin, CT (US);
Steven J. Sirica, Ellington, CT (US);
UNITED TECHNOLOGIES CORPORATION, Hartford, CT (US);
Abstract
A compressor tip clearance management system includes a compressor section having a low pressure compressor and a high pressure compressor arranged downstream from the low pressure compressor. A variable stator vane is arranged upstream from the high pressure compressor. The variable stator vane is connected to an actuator, and a controller is in communication with the actuator. The controller is configured to provide a command to the actuator to move the variable stator vane in response to a high pressure compressor clearance condition. A high pressure compressor rotor speed is altered, and the high pressure compressor clearance condition is changed to a desired clearance.