Air film cooling hole pattern structure
A technology of air film cooling and air film holes, which is applied to the supporting elements of blades, engine elements, machines/engines, etc., can solve the problems that the cold air film is not fully spread and the air film cooling efficiency is not well improved, etc. Achieve good practical application value, improve film cooling efficiency, and improve the effect of cooling capacity
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[0025] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.
[0026] Such as Figure 1~3 As shown, this embodiment provides a film cooling hole structure. The structure includes a film hole and a wall, and the outlet of the film hole is located in the upstream area of the wall. The air film hole includes a cylindrical section 1 and an expansion section 2 , one end of the cylindrical section 1 is a cold air inlet, and the other end of the cylindrical section 1 is connected to the expansion section 2 . The opening on the top surface of the expansion section 2 is the outlet of the gas film hole on the wall;
[0027] Cylindrical diameter d of c...
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