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, 2013
Filed:
Aug. 26, 2008
Yoshitaka Terada, Takasago, JP;
Tetsu Konishi, Takasago, JP;
Katsuyoshi Omae, Takasago, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
A low cost gas turbine combustor has main nozzles having a cylindrical central tube using an interior as an oil fuel path, a cylindrical outer tube disposed on an outermost periphery of the main nozzle, and a support tube disposed between the central tube and the outer tube, the central tube, the outer tube and the support tube each being formed independently. The support tube has such an internal diameter as to form a clearance becoming an insulating air layer between the support tube and an outer periphery of the central tube, and includes supporting portions formed on an axially upstream side and radially contacting an inner periphery of the outer tube groove portions formed along an axial direction between the supporting portions, and a cylindrical portion formed on an axially downstream side and having an external diameter equal to or smaller than an external diameter of the groove portions.