The influence of interstage channel on efficiency of molecular drag stage in hybrid turbomolecular pump

Authors

  • Julia Alekseevna Shostak Bauman Moscow State Technical University, Russia, Moscow
  • Nikolai Konstantinovich Nikulin Bauman Moscow State Technical University, Russia, Moscow
  • Georgy Tamazievich Tsakadze Bauman Moscow State Technical University, Russia, Moscow
  • Petr Alekseevich Shostak Bauman Moscow State Technical University, Russia, Moscow
  • Aleksey Mikhaylovich Shostak Abkhaz State University, Abkhazia, Sukhum

DOI:

https://doi.org/10.25206/2588-0373-2021-5-3-45-53

Keywords:

turbomolecular pump, molecular drag pump, channel conductivity, volumetric gas flow, moving walls channel, pumping speed, resistance, gas flow

Abstract

The interstage channel is one of the factors affecting the efficiency of the molecular drag stage in a hybrid turbomolecular pump (TMP). The influence of parameters of the channel on the pumping performance of the molecular drag stage is investigated. The offered approach allows calculating the pumping performance of a molecular drag stage taking into account the effect of the interstage connecting channel on the pumping process. The comparison of the pumping characteristics of a molecular drag stage obtained in calculation taking into account the effect of the channel and excluding it is given. This article assesses the efficiency of the molecular drag stage in a hybrid TMP depending on geometric and dynamic parameters of the channel. The outcomes and recommendations allow to expand the range of working pressures of a hybrid TMP exclusively by means of parameters of the connecting channel.

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Author Biographies

Julia Alekseevna Shostak, Bauman Moscow State Technical University, Russia, Moscow

Graduate Student of E5 Vacuum and Compressor Equipment Department, Bauman Moscow State Technical University (BMSTU), Moscow, Russia.

Nikolai Konstantinovich Nikulin, Bauman Moscow State Technical University, Russia, Moscow

Candidate of Technical Sciences, Assosiate Professor of E5 Vacuum and Compressor Equipment Department, BMSTU, Moscow, Russia.

Georgy Tamazievich Tsakadze, Bauman Moscow State Technical University, Russia, Moscow

Master in Technological Machines and Equipment, BMSTU, Moscow, Russia.

Petr Alekseevich Shostak, Bauman Moscow State Technical University, Russia, Moscow

Student gr. BMT2-21M of Biomedical Engineering Faculty, BMSTU, Moscow, Russia.

Aleksey Mikhaylovich Shostak, Abkhaz State University, Abkhazia, Sukhum

Senior Lecturer of Agricultural Mechanization Department, Abkhaz State University, Sukhum, Abkhazia.

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Abstract views: 37

Published

2021-10-21

How to Cite

Shostak Ю. А., Nikulin Н. К., Tsakadze Г. Т., Shostak П. А., & Shostak А. М. (2021). The influence of interstage channel on efficiency of molecular drag stage in hybrid turbomolecular pump. Omsk Scientific Bulletin. Series «Aviation-Rocket and Power Engineering», 5(3), 45–53. https://doi.org/10.25206/2588-0373-2021-5-3-45-53

Issue

Vol. 5 No. 3 (2021)

Section

Power and chemical engineering

License

Non-exclusive rights to the article are transferred to the journal in full accordance with the Creative Commons License BY-NC-SA 4.0 «Attribution-NonCommercial-ShareAlike 4.0 Worldwide License (CC BY-NC-SA 4.0»)

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