Patent · US Active

Cooled turbine blades for a gas-turbine engine

US9051841B2 · kind B2 · utility

3Cited by

11References

9Claims

0Family size

Assignee

ROLLS-ROYCE DEUTSCHLAND LTD & CO KG · DE

Inventors

Erik Janke · Berlin, DE
Jens Taege · Berlin, DE
Thomas SCHIESSL · Rangsdorf, DE
Sebastian Meier · Munich, DE
Heinz-Peter Schiffer · Brussels, BE
Nils Winter · Neu-Isenburg, DE
Knut LEHMANN · Berlin, DE

Key dates

Filing date	Sep 23, 2011
Grant date	Jun 9, 2015
Priority date	—
Expiry date	Dec 19, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T50/60
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The present invention relates to a cooled turbine blade for a gas-turbine engine having at least one cooling duct (14) extending radially, relative to a rotary axis of the gas-turbine engine, inside the airfoil and air-supply ducts (12) issuing into said cooling duct, characterized in that the cooling duct (14) extends into the blade root (6) in order to generate close to the wall a cooling airflow moved at high circumferential velocity and radially in helical form and that in the area of the blade root (6) at least one nozzle-shaped air-supply duct (12) issues into the cooling duct (14) tangentially or with a tangential velocity component.

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