AIRCRAFT GAS TURBINE ENGINE Russian patent published in 2012 - IPC F02C7/06 

FIELD: engines and pumps.

SUBSTANCE: proposed engine comprises turbocompressor unit, combustion chamber, jet nozzle, ACS, fuel and hydraulic oil systems with appropriate pumps. Pumps include one delivery pump and set of discharge pumps, suction and pressure oil lines. Axial gerotor delivery pump comprises driven shaft with offset gears, shaft axial retention end discs made up of lock ring fitted in annular groove on shaft surface. Engine comprises rotor bearing oil cavities with friction assemblies lubing points and bellows gate arranged in delivery line with air release device arranged in bellows loop. Note here that said air release device is made up of jet injector arranged in air section of one of oil cavities at whatever lubing point and communicated via oil line with bellows gate loop.

EFFECT: higher reliability, longer life.

8 cl, 4 dwg