Patent · US Active

Exhaust gas chimney

US7766731B2 · kind B2 · utility

4Cited by

17References

9Claims

0Family size

Assignee

MAN Diesel & Turbo SE · DE

Inventors

Emil Aschenbruck · Duisburg, DE
Markus Beukenberg · Homburg, DE
Gerhard Fruechtel · Oberhausen, DE

Key dates

Filing date	Dec 5, 2006
Grant date	Aug 3, 2010
Priority date	—
Expiry date	Sep 17, 2027

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23J2900/13003
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

An exhaust gas chimney, especially an exhaust gas chimney installed directly downstream of a gas turbine or downstream of the waste heat recovery boiler of a gas turbine, includes an inner shell formed as a metal tube and surrounded by a sound absorption ring filled with bulk material for sound absorption. The sound absorption ring is formed as a ring jacket provided with a lower end plate that slopes downward and is permanently joined with the inner shell of the chimney, and with an upper end plate that slopes upward toward the inner shell. Ribs are joined to the inner shell of the chimney inside the annular jacket.

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