Patent · US Expired

Method for the reduction of sound emission as well as for the improvement of the air output and the efficiency in an axial flow machine, and flow machine

US5518364A · kind A · utility

8Cited by

4References

11Claims

0Family size

Assignee

Deutsche Forschungsanstalt Fur Luft-Und Raumfahrt E.V. · DE

Inventors

Wolfgang Neise · Berlin, DE
Frank Kameier · Düsseldorf, DE

Key dates

Filing date	Mar 25, 1994
Grant date	May 21, 1996
Priority date	—
Expiry date	Mar 25, 2014

Classification

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

Abstract

An axial flow machine (1) having a rotor (2) that rotates about a fixed axis (5) the rotor having a number of blades (4), and a casing (3), radially surrounding the rotor (2). A turbulence generator (14) is positioned in a ring-shaped gap (9) formed between the tips (7) of the blades (4) and the inner surface (8) of the casing (3) to limit the sound emission of the flow machine (1).

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