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:
Feb. 22, 1994
Filed:
Nov. 24, 1992
Indrik Linask, Tolland, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A turbine airfoil having a baffleless cooling passage for directing cooling fluid toward a trailing edge is disclosed. Various construction details are developed which provide axially oriented, interrupted channels for turning a flow of cooling fluid from a radial direction to an axial direction. In a particular embodiment, a turbine airfoil has a cooling passage including a plurality of radially spaced walls, a plurality of radially spaced dividers downstream of the walls, and a plurality of radially spaced pedestals positioned axially between the walls and dividers. The walls and dividers define channels having an axial interruption permitting cross flow between adjacent channels. The cross flow minimizes the adverse affects of a blockage within a subchannel between adjacent walls. The pedestals are aligned with the subchannels such that cooling fluid exiting a subchannel impinges upon the pedestal.