Patent ID: 9551299
Date: 2017-01-24
CPC Classifications: F02K,F23R,Y10T

Claim:
1. A combustion chamber comprising an inner wall; and an outer wall surrounding the inner wall; the inner wall having a plurality of effusion holes in fluid communication with an inside of the combustion chamber, the outer wall having a plurality of cooling side holes in fluid communication with a cooling source; the inner wall and the outer wall defining a flow passage therebetween that fluidly connects one or more of the cooling side holes with one or more of the effusion holes, the flow passage having a geometric configuration to permit forward flow of gases through the flow passage from the cooling source to the inside of the combustion chamber and to restrict reverse flow of gases through the flow passage from the inside of the combustion chamber to the cooling source, and the permitted flow rate being greater than the restricted flow rate, wherein the geometric configuration includes a backflow inhibiting portion formed by a forwardly directed pointed conical portion flanked by a pair of deflector portions and each deflector portion is defined by a forwardly opening curved wall.