Patent · US Active

Turbine guide wheel

US9896950B2 · kind B2 · utility

2Cited by

15References

12Claims

0Family size

Assignee

ROLLS-ROYCE DEUTSCHLAND LTD & CO KG · DE

Inventors

Lars Willer · Berlin, DE
Knut LEHMANN · Berlin, DE
Philipp Amtsfeld · Berlin, DE

Key dates

Filing date	Sep 8, 2014
Grant date	Feb 20, 2018
Priority date	—
Expiry date	Jan 10, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2250/713
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A turbine stator wheel of a gas turbine with a plurality of stator vanes spaced apart around the circumference is provided. Two adjacent stator vanes form a passage each between the suction side of the one stator vane and the pressure side of the other stator vane starting from the vane trailing edge, which includes a constant passage portion in which the passage has a substantially constant passage cross-section. The constant passage portion has an inlet area and an outlet area. Each stator vane forms on the pressure side a rear area that extends, starting from the vane trailing edge adjoining the constant passage portion as far as the inlet area of the passage portion, and on the pressure-side forms a front area that extends upstream of the rear area. Each stator vane has on the pressure side a convex pressure-side contour.

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