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:
Jul. 09, 1996
Filed:
May. 10, 1994
Applicant:
Inventors:
Yoshishige Ohyama, Katsuta, JP;
Yutaka Nishimura, Katsuta, JP;
Yoshio Sato, Hitachi, JP;
Motohisa Nishihara, Katsuta, JP;
Shigeru Azuhata, Hitachi, JP;
Kazuyuki Ito, Katsuta, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C / ; F02C / ;
U.S. Cl.
CPC ...
60 3903 ; 60 3927 ;
Abstract
A control apparatus for a gas turbine having an air flow control valve for controlling the flow rate of combustion air in an air flow passage from a compressor to the gas turbine, includes an air velocity or flow sensor arranged in the vicinity of the air flow control valve. A control unit operates to control the opening of a fuel flow regulation valve and/or an air flow control valve on the basis of a signal from the air velocity or flow sensor, thereby to control the air fuel ratio in a combustion section of the gas turbine.