GAS SEPARATOR Russian patent published in 2008 - IPC E21B43/38 

FIELD: engines and pumps.

SUBSTANCE: invention relates to pump construction and can be used in production of petroleum. The gas separator incorporates a cylindrical housing with a protective sleeve and a shaft, as well as a screw, an impeller and separating drum with radial blades. In compliance with this invention, to produce petroleum with a high content of solid abrasive particles, the protective sleeve inner surface should have, at least, around the screw or around the screw and the impeller, at least one helical blade with a skeleton line twisted towards or opposite to the screw blades, and/or, at least, two lengthwise blades should be mounted. These blades are fitted in parallel to the shaft axis and allow creating a vortex path by a liquid flow preventing the contact of solid abrasive particles with the sleeve surface.

EFFECT: gas separator design capable for a long faultless operation in fluids with abrasive particles.

9 cl, 5 dwg.