ROTARY VACUUM PUMP OF VANE TYPE Russian patent published in 2018 - IPC F04C2/344 F04C25/02 F01C21/10 

FIELD: engines and pumps.

SUBSTANCE: pump comprises a drive motor (1) interacting with a chamber (2) for vane vacuum, in which all pump surfaces located in the upper half of the pump are configured so that there are no elements capable of holding liquids or solid particles. The pump or at least one of its parts is provided with protection means (6) with no surfaces or cavities capable of holding liquids or solid particles, or a drive motor (1) containing a double jacket, the upper part of which is formed by a cylinder which is an asynchronous motor with water cooling which has a housing forming a space together with the cylinder in which the cooling medium is circulating.

EFFECT: creation of rotary vane vacuum pump which eliminates the risk of contamination, adapted to environments in which strict hygiene standards are applied.

9 cl, 8 dwg