Steven R Whitaker

US Patent:

20200018190, Jan 16, 2020

Filed:

Jul 13, 2018

Appl. No.:

16/035191

Inventors:

- Morris Plains NJ, US
Mark C. Morris - Phoenix AZ, US
Steven Whitaker - Phoenix AZ, US
David Waldman - Chandler AZ, US

Assignee:

HONEYWELL INTERNATIONAL INC. - Morris Plains NJ

International Classification:

F01D 25/32
F01D 5/20
F01D 5/18

Abstract:

A turbine blade includes an airfoil that has a tip region that extends from the leading edge toward the trailing edge, and the tip region is bounded by a wall that extends at a positive angle. The leading edge has a leading edge cooling circuit that is defined from the platform to a tip flag channel, and the leading edge cooling circuit is in fluid communication with the tip flag channel. The pressure side includes at least one tip dust hole defined through the wall proximate the pressure side, and the at least one tip dust hole has an inlet and an outlet. The airfoil has at least one rib defined on the wall that extends at a second angle, and the at least one rib merges with at least one flow scoop to direct the particles and a portion of the cooling fluid into the inlet.