GAS TURBINE ENGINE Russian patent published in 2012 - IPC F02C7/12 

FIELD: engines and pumps.

SUBSTANCE: gas turbine engine contains turbine plate provided with trunnion on which bushing with slots is installed, bearing with external and internal rings installed on bushing and located in housing, hollow shaft interconnected with atmosphere, air intake coaxial with it and interconnected with shaft cavity, outlet device containing hollow posts and central body interconnected with atmosphere by hollow posts. Between bearing housing and plate there is movable seal installed forming cavity between plate and bearing. There are at least two holes in the plate connecting cavity between plate and bearing with shaft cavity. Slots are made on outer surface of bushing and they form cavities between bushing and internal ring of bearing connected by channels to cavity between plate and bearing and to cavity of central body.

EFFECT: increasing efficiency of cooling of turbine support bearing and improving reliability of engine operation without increase of its size and weight.

1 cl, 4 dwg