ROTOR FOR AXIAL THROUGHFLOW TURBOMACHINE AND MOVING BLADE FOR THE ROTOR

• Main Authors: RUBISCHON KURT, NAGLER CHRISTOPH, BRANDL HERBERT, KREISELMAIER ERICH
• Format: Patent
• Language: English
• Published: 26.05.2011
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; HEATING; INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS; INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; STEAM ENGINES; WEAPONS

PROBLEM TO BE SOLVED: To design a rotor or a moving blade used for the rotor so that the advantages of the shape of a rotor groove having an enlarged bottom area and a large radius of curvature can be drawn out. SOLUTION: A plurality of moving blades 26 held by the rotor 11 are pushed and held, at blade roots 27, in a rotor groove 21 extending around an axis 30. The blade root 27 comprises a hammer root part having a hammer head part 32, and is supported, against a centrifugal force acting on the moving blade 26, on the radial stop surface 25 of the rotor groove 21 positioned radially outward, and supported, against an axial force acting on the moving blade 26, on an axial stop surface 20 positioned radially inward. The rotor groove 21 comprises, at the bottom, a bottom area 23 which has a continuously curved cross sectional shape and is enlarged in the axial and radial directions. The blade root part 27 is radially adaptable to the enlarged bottom area 23. COPYRIGHT: (C)2011,JPO&INPIT