TY JOUR TI JUSTIFICATION OF THE EFFECTIVENESS OF THE REVERSIBLE EJECTOR SHAFT SEAL OF A ROTARY MACHINE KW control KW gap KW reverse rotation KW rotor KW seal KW shaft KW vacuum KW ejector JO Scientific Papers Collection of the Angarsk State Technical University AU Cherepanov, A.P. PY 2026 IS 2026 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»