FIELD: machine building.
SUBSTANCE: impeller of rotor of gas turbine engine has blades secured on the rotor disk using the ring locks "dovetail", O-rings, and seal plate, and has compensation hole on the disk rim. The seal plate is located on the internal surface of the blade flange, repeats its shape, and is made with possibility of gaps coverage between the blades. The compensation hole made in the disk rim connects the lock cavity with the internal cavity of the rotor with pressure reduced in comparison with the pressure in through part.
EFFECT: invention reduces weight and overall dimensions of the rotor elements.
3 dwg
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Authors
Dates
2015-12-10—Published
2014-08-22—Filed