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:
Jan. 25, 1994
Filed:
Dec. 11, 1989
John Corrado, San Diego, CA (US);
Nipulkumar Shah, San Diego, CA (US);
Sundstrand Corporation, Rockford, IL (US);
Abstract
Difficulties in cooling the vanes or blades (46) making up a turbine nozzle (40) in a gas turbine may be minimized or eliminated by placing interior passages (62) of the blades or vanes (46) in fluid communication with the compressor (14) and providing outlet passages (64) for the passages (62) in the rear turbine shroud (42). The passages (64) are preferably angled so that their downstream ends (68) open downstream. Consequently, eductor or ejector-like formations are present and when cooling air for a combustor (30) flowing in a cooling air path (28) passes across the ends (68), a region of lower pressure is formed to positively assure the flow of cooling air through the vanes or blades (46).