Patent ID: 6145319
Filing Date: 2000-11-14
Classification: F23R

Abstract:
A combustor liner comprising:a wall having an outboard surface over which is flowable a cooling fluid, and a opposite inboard surface for facing combustion gases;a plurality of first holes inclined through said wall at an acute inclination angle from said surfaces thereof in a multihole pattern to channel said cooling fluid therethrough to form a cooling film layer of said cooling fluid along said inboard surface;a second hole extending perpendicularly through said wall within said multihole pattern to form a shadow along said inboard surface devoid of said first holes in which said film layer is locally interrupted; anda transition hole extending through said wall in said shadow at a greater inclination than said first holes for cooling said wall at said shadow, and having an outlet at said inboard surface spaced no closer to said second hole than an inlet thereof at said outboard surface.