HYBRID HIGH-VACUUM PUMP Russian patent published in 2015 - IPC F04D19/04

Abstract RU 2561514 C2

FIELD: engines and pumps.

SUBSTANCE: invention relates to high-vacuum pumps. Proposed pump consists of housing motor running in bearings to drive the pump rotor with rotor vanes and stator vanes arranged between the latter to make a turbomolecular stage. Pump rotor inner part seat is shaped to Morse cone with four-start square thread with variable cross-section of thread root. Stator stationary pump part is separated from pump rotor by antifriction bush made of graphite-teflon material.

EFFECT: higher capacity, reliable and long-term operation.

4 cl, 2 dwg

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RU 2 561 514 C2

Authors

Runev Vjacheslav Vladimirovich

Dates

2015-08-27—Published

2012-05-31—Filed