Investigation of the impact of the geometric dimensions of the impeller on the torque flow pump characteristics

A method of designing of torque­-flow pump impeller with curvilinear blade profile

“…Theoretically calculated impeller blade angle β r at the radius r=0.8r 2 of the torque-flow pump SVN 80/32 with n s =60 is 44 o . The difference from the experimental value of this angle is less than 3 o [4].…”

“…Theoretically calculated impeller blade inlet angle β 1 of the torque-flow pump SVN 80/32 is estimated at 33 o . This corresponds to the value of this angle at which the maximum value of the pump energy efficiency is experimentally obtained [4]. Theoretically calculated impeller blade angle β r at the radius r=0.8r 2 of the torque-flow pump SVN 80/32 with n s =60 is 44 o .…”

“…Replacing the existing impeller with straight blades with the new one with a curvilinear blade profile has allowed increasing the torque-flow pump energy efficiency by 4-5 % [4].…”

“…In the paper [4], a complex study of the influence of impeller geometric parameters on the torque-flow pump characteristics has been carried out. The author replaced the impeller with straight blades with the impeller with the curvilinear blade profile.…”

The influence of the impeller design features on the combined operating process of the torque-flow pump

“…Thus, the fields of application of torqueflow pumps cover a wide range of industry from wastewater transportation to the food industry. However, the hydraulic efficiency of torqueflow pumps is lower, compared to conventional centrifugal pumps (pump efficiency does not exceed η = 0.63) [4,5].…”