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:
Dec. 29, 2015
Filed:
Mar. 29, 2011
Yosuke Eto, Tokyo, JP;
Ken Ugai, Tokyo, JP;
Yoshikiyo Okamoto, Tokyo, JP;
Ryo Higashi, Tokyo, JP;
Takeo Hirasaki, Tokyo, JP;
Yosuke Eto, Tokyo, JP;
Ken Ugai, Tokyo, JP;
Yoshikiyo Okamoto, Tokyo, JP;
Ryo Higashi, Tokyo, JP;
Takeo Hirasaki, Tokyo, JP;
MITSUBISHI HITACHI POWER SYSTEMS, LTD., Yokohama-shi, JP;
Abstract
A consumption amount of high-calorific gas such as coke oven gas (COG) during operation of a gas turbine is reduced, halt of the gas turbine due to clogging of a pilot system, a malfunction of a compressor which compresses high-calorific gas is prevented, and reliability of the gas turbine is improved. When operation of the gas turbine () starts, with use of both a first fuel supply system () which supplies a high-calorific fuel for a first nozzle constituting a combustor (), and a second fuel supply system () which supplies a low-calorific fuel for a second nozzle constituting the combustor (), the high-calorific fuel and the low-calorific fuel are supplied to the combustor (), and at a time when the gas turbine () reaches output power which enables continuous operation with only the low-calorific fuel, supply of the high-calorific fuel to the combustor () is shut off, and only the low-calorific fuel is supplied to the combustor ().