DAMPER WITH VALVE FOR COOLING SYSTEM IN GAS TURBINE ENGINE, COOLING AGENT AND JET TURBINE ENGINE Russian patent published in 2012 - IPC F02C7/12 F02K1/78 

FIELD: engines and pumps.

SUBSTANCE: damper with valve, which is meant for cooling system in gas turbine engine, includes the valve installed with possibility of being turned about the axis between closing position of hole and opening position of that hole. Hole is meant for air passage. Also, the damper includes devices for bringing that valve into rotary movement relative to the above axis. Rotary movement actuating devices include two coaxial rotating members installed one above the other and interacting with each other by means of shaped cam surfaces. The first one of those members is rigidly fixed in translational movement along its rotation axis. The second rotating member is fixed in translational movement along that axis, and the above valve is arranged on it. Shaped cam surfaces are made so that rotation of the first rotating member, starting from closing position of the hole, induces translational movement of the second rotating member and the above valve along rotation axis, and then, rotation of that rotating member relative to the above axis. Shaped cam surfaces of those two rotating members are formed on axial ends of those members and include inclined sections located spirally about rotation axis. The other object of this invention is cooling device of controlled jet nozzle shutters of turbine jet engine, which contains dampers with the above described valve, as well as jet turbine engine containing the above cooling device of controlled jet nozzle shutters.

EFFECT: invention allows increasing cooling efficiency of jet nozzle shutters.

16 cl, 8 dwg