JOURNAL BEARING FOR ROTARY BLADE OF STATOR WITH CHANGEABLE ANGLE OF SETTING, BLADE OF GUIDING MECHANISM OF IMPELLER MACHINE CONTAINING ABOVE SAID BEARING (VERSIONS), IMPELLER MACHINE (VERSIONS) Russian patent published in 2011 - IPC F01D17/16 F04D29/56 F16C27/06 

FIELD: machine building.

SUBSTANCE: impeller machine consists of rotary blade with changeable tilt angle, of pin installed in orifice made in carter of impeller machine and journal for securing rod of control of blade setting. The pin is installed by means of two bearings, one of which is located on a side of a platform, while another bearing on an end of the rotary pin is positioned from the side of the control rod. The journal bearing at the end of the pin has an internal bush stationary connected with the said axis and an external bush equipped with a flange and stationary connected with the said orifice. Elastomer material is inserted between the internal bush and external bush; this material facilitates turn of the blade around its axis and at least partial damping bending force of the rotating pin perpendicular to axis. The internal bush contains two cylinder elements continuing one another and divided with a circular layer of elastomer.

EFFECT: reduced wear of bearings of blade with changeable tilt angle.

2 cl, 3 dwg