DEVICE FOR WALL COOLING INJECTION Russian patent published in 2019 - IPC F01D5/08 F01D25/12 

FIELD: machine building.

SUBSTANCE: device for injection cooling of wall includes injection sleeve and wall exposed to hot gas during operation. Injection sleeve is at least partially located in the pressure chamber and is located at a distance from the wall to form a cooling flow path between the wall and the injection hose so that the compressed gas injected from the pressure chamber through the first hole in the cooling hose blows the wall during operation and flows as a transverse flow towards the outlet at the outlet end of the cooling flow path. Flow deflection device is located in the flow path of the cooling flow downstream the first hole for deviation of the cross flow from the second hole and passes from the point between the first hole and the second hole in the direction of the cross flow over the second hole. First branch extends from one side of the second hole in the direction of transverse flow, and the second branch passes from the other side of the second hole in the direction of cross flow. Hole of injection cooling is absent in the first section of convective cooling of the wall, which is the wall section between the inlet end and the outlet end of the flow deflection device outside the section enclosed by the deviation device.

EFFECT: higher efficiency of injection cooling.

15 cl, 14 dwg