CENTRIFUGAL SEPARATOR Russian patent published in 2013 - IPC B04B9/04 

FIELD: process engineering.

SUBSTANCE: set of invention relates to centrifugal separator intended for separation of components of different density from fluid. Proposed separator comprises stationary frame, rotary spindle extending along lengthwise axis, centrifugal rotor running with spindle and comprises case surrounding inner separation space, inlet communicated with said separation space to feed fluid, at least, one outlet communicated with said separation space for discharge of separated component, and drive motor. Drive motor comprises stator and rotor to drive spindle and centrifugal rotor. Drive motor rotor runs in first and second bearings about central axis. Separator comprises third bearing arranged in said frame to support spindle so that it transmits first portion of radial forces acting in operation between said spindle and frame. Separator comprises connection part arranged between and attached to drive motor rotor and spindle to transmit drive motor rotor rotation to spindle. Connection part comprises first connection element attached to drive motor rotor and second connection element connected to spindle. First and second connection elements are integrated with one of plate connector and gimbal joint. Connection part allows transmission of second portion of radial forces in operation acting between spindle and frame to said frame by drive motor rotor and first and/or second bearing. In compliance with first version, connection part represents a plate joint comprising connection disc arranged between and engaged with first and second connection elements to transmit torque. In compliance with second version, said connection part is a gimbal joint comprising intermediate connection element engaged via first rotary axle with first connection element for torque transmission and, via second rotary axle, engaged with second connection element for torque transmission. Note here that first and second rotary axles are arranged perpendicular to each other.

EFFECT: normal displacement of spindle at low losses, its deflection relative to central axis and centering.