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:
Nov. 18, 1997
Filed:
Nov. 24, 1993
Brian K Beabout, Coventry, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
An internally cooled airfoil includes film cooling holes extending through an expanded section of the wall. Various construction details are developed which provide long film cooling holes resulting in convective cooling and film cooling of the outer surface of the airfoil downstream of the cooling hole. In a particular embodiment, the airfoil includes a wall having an expanded section and a canted shaped cooling hole. The shaped cooling hole includes a metering section having a length L.sub.2 and a diffusing section having a length L.sub.3. The expanded section has a thickness T.sub.e, measured along the direction of the cooling hole, sufficient to accommodate the total length L.sub.1 of the cooling hole.