ROTOR DISK FOR TURBOMACHINE, TURBOMACHINE AND COMPRESSOR OF TURBOJET ENGINE Russian patent published in 2009 - IPC F01D5/30 F04D29/34 

FIELD: engines and pumps.

SUBSTANCE: rotor disk for turbomachine comprises external peripheral groove, in which blade roots are engaged and retained. Groove comprises receiving opening for insertion of blade roots and at least one retaining cut for retention of integral locking element. Locking element is elastically deformed and is U-shaped or Ω-shaped, so that it corresponds to shape of groove cross section. Locking element is inserted in groove via opening and has dimensions to be installed and retained in cut in free condition without pressure or under slight pressure, and to be displaced by sliding along groove in elastically deformed and compressed condition. Opening of locking element is inverted to groove bottom, when locking element is installed in it. Other inventions of group are related to compressor of turbojet engine and turbomachine, such as turbojet engine, including at least one above described rotor disk.

EFFECT: inventions make it possible to simplify locking element, to reduce cost of its reduction, to simplify disk assembly and disassembly, and provide for installation of single-type blades on disk.

9 cl, 4 dwg