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Scroll Geometry of Scroll Vacuum Pump
Author(s) -
Raykov A.,
Burmistrov A.,
Salikeev S.,
Fomina M.
Publication year - 2018
Publication title -
vakuum in forschung und praxis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.213
H-Index - 13
eISSN - 1522-2454
pISSN - 0947-076X
DOI - 10.1002/vipr.201800702
Subject(s) - scroll , inlet , mechanics , compression (physics) , scroll compressor , power (physics) , curvature , materials science , mechanical engineering , thermodynamics , physics , engineering , mathematics , geometry , composite material
Summary The influence of the end part of the scroll on the pumping characteristics and indicated power of the oil free scroll vacuum pump is considered. With the help of developed mathematical model of the scroll pump dependence of pumping speed on the inlet pressure at different curvature radii of the scroll end part and compression duration is obtained. The influence of compression duration on the ultimate pressure and delivery rate is examined. Dependence of the indicated power on the inlet pressure at different number of scroll wraps and compression duration is calculated.