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Construction and Experimental Research on Plastic Cycloidal Gears Used in Gerotor Pumps

[+] Author Affiliations
Justyna Krawczyk, Jarosław Stryczek

Wroclaw University of Technology, Wroclaw, Poland

Paper No. FPNI2014-7827, pp. V001T01A006; 6 pages
  • 8th FPNI Ph.D Symposium on Fluid Power
  • 8th FPNI Ph.D Symposium on Fluid Power
  • Lappeenranta, Finland, June 11–13, 2014
  • Conference Sponsors: Fluid Power Net International (FPNI), Lappeenranta University of Technology, Finland
  • ISBN: 978-0-7918-4582-0
  • Copyright © 2014 by ASME


Paper presents the construction and results of experimental research of gerotor pump with gears made of POM and PPS. Research program included verification of design factors (axial and radial clearance), operational factors (impact of speed, pressure and temperature on the pump characteristics) and definition of durability characteristics. Results of research proves that the pump with gears made of plastics can operate at high speeds (up to 4000 rpm), at temperature of the working fluid in the range 25°C – 50°C, with the working pressure at the outlet of the pump 4 MPa. Presented results of long-term tests, shows that the pump with gears made of plastics worked for 40 hours maintaining a constant level of efficiency Q = 12.5 dm3, which represents 80% of the theoretical volumetric efficiency.

Copyright © 2014 by ASME
Topics: Construction , Gears , Pumps



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