| 摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: proposed device to turn the rotodynamic machine adjustable blades incorporates a journal fitted on the blades to turn, in the cylindrical radial branch pipe of the machine casing, the blades being lever-jointed to the adjusting ring enveloping the casing. The journal of, at least, some blades extends beyond the casing and out of the branch pipe and comprises an outer radial end turning on the fixed element arranged outside the casing. The said fixed element is held and centered on the casing with the help of locking crosspieces distributed regularly around the casing lengthwise axis. The levers support and center the adjusting ring at a distance from the turbine casing and are attached to the blade journals between the cylindrical branch pipe and fixed element. ^ EFFECT: higher reliability thanks to reduced bending forces acting on blade journals. ^ 13 cl, 4 dwg |
