Siemens Energy, Inc.

Siemens Energy Global Gmbh & Co. Kg

Patrick M Pilapil

Ching-Pang Lee

Kok-Mun Tham

Peter Schröder

Jiping Zhang

Christopher W Ross

Kevin Kampka

Sin Chien Siw

Yan Yin

Santiago R Salazar

Roger Matthews

Joshua D Kovac

Javan Albright

James McCoy

Joana Verheyen

A flow inducer assembly and a method for cooling turbine blades of a gas turbine engine are presented. The gas turbine engine includes a rotor disk having circumferentially distributed disk grooves and turbine blades. Each turbine blade includes a blade root inserted into blade mounting section of the disk groove. Seal plates are attached to an aft side circumference of the rotor disk. The flow inducer assembly is integrated to each seal plate at a side facing away from the rotor disk. The flow inducer assembly is configured to function as a paddle due to rotation of the rotor disk and the seal plate therewith during operation of the gas turbine engine to drive ambient air as a cooling fluid into the disk cavity and enter inside of the turbine blade from the blade root for cooling the turbine blade.

Cover plate with flow inducer and method for cooling turbine blades

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.

Interstage seal housing optimization system in a gas turbine engine

Growing community of inventors

Kissimmee, FL, United States of America

Patrick M Pilapil