Patent · US Active

Turbine blade

US10301944B2 · kind B2 · utility

2Cited by

2References

9Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Björn Buchholz · Wetter (Ruhr), DE
Ralph Gossilin · Oberhausen, DE
Daniela Koch · Berlin, DE
Marco Schüler · Potsdam, DE

Key dates

Filing date	Jun 21, 2016
Grant date	May 28, 2019
Priority date	—
Expiry date	Jun 21, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2240/80
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A cast turbine blade having a platform and hollow blade airfoil arranged thereon, wherein the blade airfoil has a pressure-side blade wall and a suction-side blade wall that extend, along a centrally arranged curved profile centerline, from a common leading edge to a common trailing edge, and having a transition, with an outer contour profile, between the blade airfoil and the platform. The blade walls each have a locally determined blade wall thickness, wherein the turbine blade has, internally, a contour profile that partially matches the outer contour profile of the transition such that the region of the transition has an essentially constant blade wall thickness. In the transition, the contour profile at a surface section of the blade airfoil facing the leading edge is such that the blade wall thickness is increased there in comparison to the blade wall thickness of the transition away from the leading edge.

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