The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 2000
Filed:
Sep. 05, 1997
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A flue-gas duct of a gas and steam-turbine plant is constructed in such a way that reliable sound absorption is ensured with especially simple provisions, even when using internally insulated duct pieces, in particular an internally insulated waste-heat boiler. The flue-gas duct includes a duct piece having a number of sound-absorber gates. At least one sound-absorber gate has a displacement nose disposed upstream thereof on the flue-gas side. A gas-switch module having a displaceable shut-off damper is disposed downstream of the duct piece which is constructed as a sound-absorber module, on the flue-gas side. The shut-off damper includes first and second substantially mutually perpendicularly oriented shut-off plates.