Patent · US Expired

Overhung radial-flow steam turbine wheel with toothed and bolted shaft connection

US4815931A · kind A · utility

11Cited by

4References

14Claims

0Family size

Assignee

Aktiengesellschaft Kuhnle, Kopp & Kausch · DE

Inventors

Klaus Linck · Großkarlbach, DE
Bernd Schmitt · Lohr am Main, DE
Joachim Nottrott · Darmstadt, DE

Key dates

Filing date	Apr 28, 1986
Grant date	Mar 28, 1989
Priority date	—
Expiry date	Apr 28, 2006

Classification

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

Abstract

The present invention includes an overhung turbine wheel which is provided with at least one ring of turbine blades and is connected with a shaft. In order to control the thermodynamically required circumferential speeds necessary to achieve maximum efficiency, the turbine wheel is designed as a closed disk which is narrow in the axial direction. The turbine wheel is integral with the turbine blades and furthermore is connected to the shaft through planar connecting surfaces having interfitting teeth. The turbine wheel has a relatively low mass, and the interfitting teeth allow a simple and optimal centering connection. Radial-flow turbines of this kind are standardized in model series, the turbine wheels and shafts in each case being provided with similar interfitting teeth to allow mutual combinations as desired.

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