COMPOSITE STATIC-AND-DYNAMIC DEVICE FOR EVACUATING GAS MEDIUM Russian patent published in 2004 - IPC

FIELD: gas medium evacuation devices. SUBSTANCE: device 1 has top member 2 and bottom member 3 coaxially mounted one on top of other and rigidly fixed together by means of junction braces 4. Device 1 also has axial cavity 25 open to space 8 that accommodates blades 24 of centrifugal turbine with rotor 26 and stator 23 disposed in mentioned axial cavity 25. Bottom member has lower bottom 5 and lower cover 6 coaxially passing pipeline 7 of given diameter d; one end of pipeline emerges on end of lower cover 6 to space 8 enclosed by members 2, 3; other end of pipeline 7 is used for attachment to gas media feed channel. Bottom 5 and lower cover 6 are rigidly joined together through their common base 9. Top member 2 has upper bottom 11 and upper cover 12; centrifugal turbine of device has motor and at least one blade 24. EFFECT: improved design. 34 cl, 7 dwg