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Abstract 
For pumping fluid with high viscosity and high content of mechanical impurities and the installations of the screw pumps that 
allow us to control and regulate the technological parameters of production gas are used. The research of efficiency of screw 
pump revealed that the failure of the cage (stator) and wear of the stator – rotor, accompanied by a decrease in performanceThe 
wear of the pair of stator and rotor, extended condition normal operation of the screw pump are studied, taking into account the 
orientation of the working screw, the effect of inertial and hydraulic forces, physical and mechanical properties of the contact 
layers. This considerably improves the durability and manufacturability of the screw pumps. 
© 2017 The Authors. Published by Elsevier B.V. 
Peer-review under responsibility of the scientific committee of the International Conference on Industrial Engineering.
Keywords:
stator; rotor; screw pump; the condition of normal operation; wear; tightness.
To pump liquid with high viscosity or high content of mechanical impurities and gas there are electric 
submersible screw pump units, which have the following advantages over pumps of other types [1-27]: 

slight mixing of the pumped liquid that prevents from formation of stable emulsions from water and oil; 

absence of valves and complex passages defines simplicity of the construction and reduces hydraulic losses; 

increased reliability due to minimal number of moving details, simplicity of manufacture and exploitation, more 
economical; 

while pumping high viscous liquid, down flow through sealing contact line between screw and elastomeric seal 
reduces which improves features of the pump; 
* Corresponding author. Tel.: [phone]. 
E-mail address: [e-mail] 
Available online at 
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ScienceDirect 
Procedia Engineering00 (2017)000–000 
www.elsevier.com/locate/procedia 
1877-7058 © 2017 The Authors. Published by Elsevier B.V. 
Peer-review under responsibility of the scientific committee of the International Conference on Industrial Engineering. 
International Conference on Industrial Engineering, ICIE 2017 
Study of Screw Pump Stator and Rotor Working Capacity to 
Increase the Output 
K.E. Borisova
a
, T.N. Ivanova
b,
*, R.G. Latypov
a
a
Udmurt State University, 1, Universitetskaya str., Izhevsk 426001, Russia 
b
Tchaikovsky Branch of FGBOU VO “Perm National Research Polytechnic Institute”, 73, Lenin st., Tchaikovsky 617764, FGBUN Institute of 
Mechanics, the Ural Branch of the Russian Academy of Sciences, 34, T. Baramzinoy str., Izhevsk 426000, Russia