IMPELLER OF AXIAL TURBOMACHINE Russian patent published in 2023 - IPC F01D5/02 F01D5/14 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to mechanical engineering and concerns the design of impellers for steam and gas axial turbines, as well as axial compressors used in power units of vehicles and in stationary heat power engineering. The impeller disk consists of several mutually parallel plates, and the impeller blade is made of a single strip of sheet material thrown at the ready through a pin inserted into the openings of the impeller disk located offset from the edge of the disk, i.e. without the formation of open grooves. By eliminating a large concentrated mass at the attachment point of the blades the distribution of mass along the radius of the impeller approaches equal strength. A margin of safety is created to increase peripheral speed with a corresponding increase in temperature and turbine efficiency without the need for more heat-resistant materials.

EFFECT: design of the blades and disk is simplified, manufacturability is increased, and the economic feasibility of expanding the scope of turbomachines in the range of medium and low powers is ensured.

2 cl, 4 dwg.