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:
Sep. 24, 1996
Filed:
Mar. 31, 1995
ABB Research Ltd., Zurich, CH;
Abstract
A gas turbine apparatus for higher pressure and temperature ratio operation, improved thermal efficiency and minimized NO.sub.x emissions includes a high pressure compressor, a high pressure turbine, a low pressure turbine and combustion chambers for each of the turbines. A diffuser guides exhaust gas from the high pressure turbine and retards the velocity of the gases. A 180.degree. bend downstream of the diffuser changes the flow direction of the gases. Fuel lances extend into the bend at the outlet end to inject fuel into the gases after the direction change. The bend directs the gas and fuel into a reversal combustion chamber where the gases and fuel again changes direction by 180.degree., and a ring vortex in the flow is produced. The fuel and air is ignited and combusted, and the combusted gases directed into the low pressure turbine.