Patent · US Active

Flow discourager integrated turbine inter-stage U-ring

US9062557B2 · kind B2 · utility

2Cited by

4References

9Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Kok-Mun Tham · Oviedo, US
Ching-Pang Lee · Cincinnati, US
Abdullatif M. Chehab · Oviedo, US
Gm Salam Azad · Oviedo, US
Shantanu P. Mhetras · Orlando, US
Manjit Shivanand · Oviedo, US
Vincent P. Laurello · Guilford, US
Christopher Rawlings · Stuart, US

Key dates

Filing date	Sep 7, 2011
Grant date	Jun 23, 2015
Priority date	—
Expiry date	Mar 28, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01D11/04
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A gas turbine having rotor discs (9), a disc cavity (13) and a stator stage (25) extending to the disc cavity (13). Seal housing flanges (43, 44) extend from a seal housing (29) of the stator stage (25). Rotor flanges (41i, 41o) extend from a rotor disk (9-1). An inner rotor flange (41i) and first seal housing flange (43) are inward from a second seal housing flange (44). One rotor flange (41o) is outward from the second seal housing flange (44). The inner rotor flange (41i) and first seal housing flange (43) extend toward one another to limit movement of main gas flow (17). An inlet (47) injects air (50) between the outward rotor flange (41o) and second seal housing flange (44).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.