Patent · US Active

Outer rim seal assembly in a turbine engine

US8939711B2 · kind B2 · utility

10Cited by

15References

15Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Ching-Pang Lee · Cincinnati, US
Kok-Mun Tham · Oviedo, US
Manjit Shivanand · Oviedo, US
Vincent P. Laurello · Guilford, US
Gm Salam Azad · Oviedo, US
Nicholas Francis Martin · High Point, US

Key dates

Filing date	Feb 15, 2013
Grant date	Jan 27, 2015
Priority date	—
Expiry date	Feb 25, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2260/202
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A seal assembly between a hot gas path and a disc cavity in a turbine engine includes a non-rotatable vane assembly including a row of vanes and an inner shroud, a rotatable blade assembly adjacent to the vane assembly and including a row of blades and a turbine disc that forms a part of a turbine rotor, and an annular wing member located radially between the hot gas path and the disc cavity. The wing member extends generally axially from the blade assembly toward the vane assembly and includes a plurality of circumferentially spaced apart flow passages extending therethrough from a radially inner surface thereof to a radially outer surface thereof. The flow passages effect a pumping of cooling fluid from the disc cavity toward the hot gas path during operation of the engine.

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