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:
Jun. 16, 1992
Filed:
Jan. 26, 1990
Haruo Urushidani, Hitachi, JP;
Seiichi Kirikami, Hitachi, JP;
Isao Sato, Hitachi, JP;
Nobuo Shimizu, Hitachi, JP;
Osamu Arai, Hitachi, JP;
Akira Shimura, Hitachi, JP;
Michio Kuroda, Hitachi, JP;
Tsuguaki Koga, Hitachi, JP;
Tadashi Kurokawa, Katsuta, JP;
Yoji Ishibashi, Hitachi, JP;
Katsukuni Hisano, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A gas turbine combustor and a method of operating the gas turbine combustor, with the gas turbine combustor comprising a combustion sleeve, a combustion sub-chamber disposed at an upstream side of the combustion sleeve and having an air and fuel supply system, and a combustion main chamber disposed on a downstream side of the sub-chamber and having an air and fuel supply system. The combustion sub-chamber and combustion main chamber are formed in such a manner that the start-up of the gas turbine is effected by the hot combustion gas generated in the sub-chamber. The combustion sub-chamber is provided with an inner sleeve protruding from a side wall of the sub-chamber such that a tip of the inner sleeve is located in the vicinity of a downstream end of the sub-chamber, and a fuel nozzle is provided in a tip of the inner sleeve for increasing the fuel-to-air ratio during an initiating period of an increase in the gas turbine rotation speed.