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:
Feb. 26, 2019
Filed:
Aug. 08, 2014
Siemens Energy, Inc., Orlando, FL (US);
Jiping Zhang, Winter Springs, FL (US);
Patrick M. Pilapil, Kissimmee, FL (US);
Yan Yin, Oviedo, FL (US);
Joshua D. Kovac, Oviedo, FL (US);
SIEMENS ENERGY, INC., Orlando, FL (US);
Abstract
An interstage seal system () for adjusting the position of an interstage seal during operation of a gas turbine engine () to increase efficiency of the seal () is disclosed. The interstage seal system () may include a interstage seal housing () formed from a circumferentially extending housing having a seal () positioned on a radially inward surface () of the interstage seal housing (). The interstage seal housing () may biased radially outward via one or more springs () to bias the radially inward surface () of the interstage seal housing () outwardly. The interstage seal housing () may reside in an interstage housing receiving cavity (). The cavity () may be supplied with gases at a higher pressure than on the other side () of the seal housing () during turbine engine operation. As such, the interstage seal housing () is forced radially inwardly to close the gap () within the seal () as the high pressure force directed radially inward overcomes the spring bias directed radially outward.