Patent · US Active

Cooling device for cooling platforms of a guide vane ring of a gas turbine

US10669886B2 · kind B2 · utility

1Cited by

21References

17Claims

0Family size

Assignee

ROLLS-ROYCE DEUTSCHLAND LTD & CO KG · DE

Inventors

Knut LEHMANN · Berlin, DE
Hamish SWEIDAN · Berlin, DE
Christian Kern · Rangsdorf, DE

Key dates

Filing date	Mar 16, 2017
Grant date	Jun 2, 2020
Priority date	—
Expiry date	Feb 24, 2038

Classification

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

Abstract

A cooling device for cooling platforms of a guide vane ring of a gas turbine is arranged downstream inside a main flow channel of a combustion chamber. Cooling air passages are arranged in a wall of the platforms or of an intermediate piece that is connected therewith to guide cooling air for film cooling the surfaces of the platforms. At least in certain areas, the wall is configured with at least two layers having—as viewed from the main flow channel—an outer wall and a spaced apart inner wall forming a hollow space, wherein the hollow space can be impinged by cooling air through at least one cooling air blow-in opening inside the outer wall, and at least one cooling air blow-out opening is arranged inside the inner wall extending in the downstream direction to the surfaces of the platforms.

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