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:
Mar. 29, 1994
Filed:
Nov. 10, 1992
Virendra M Sood, Encinitas, CA (US);
Solar Turbines Incorporated, San Diego, CA (US);
Abstract
The present system or structure for cooling a combustion end of a fuel injection nozzle is accomplished by providing a cooling passage for skin cooling of the portion of the nozzle directly exposed to the combustion flames. A twofold path is provided through which cooling air can enter cooling passages and cool an end portion of a second member and a tip. A first flow path is intended to primarily cool the tip and further cool the end portion. A second flow path is intended to ensure primary cooling of the end portion Thus the combustor end of the fuel injection nozzle is maintained at a temperature low enough to prevent failure of the combustor end through oxidation, cracking and buckling. Both the cooling flow paths dump the spent air in a cavity formed between the injector nozzle and a combustor. The spent cooling air becomes a part of the main combustion air and, therefore, does not adversely affect the combustion process in general and NOx and CO emissions in particular. Low NOx is further maintained by using a device for supplying combustible fuel into each of a plurality of spaces formed between a plurality of radial swirler vanes.