Gas turbine combustor and methodd of operating the same

Details Gas turbine combustor and methodd of operating the same Gas turbine combustor and methodd of operating the same

1990-01-26

1992-06-16

Bertsch, Richard A.

Power plants

Combustion products used as motive fluid

60733, 60740, 60747, F02C 726, F02G 300

Patent

active

051215977

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.

REFERENCES:
patent: 4173118 (1979-11-01), Kawaguchi
patent: 4292801 (1981-10-01), Wilkes

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