OIL LUBRICATING SYSTEM OF GAS-TURBINE ENGINE WITH OIL RESERVING DEVICE Russian patent published in 1999 - IPC

FIELD: gas-turbine engines incorporating long-time oil reserving device. SUBSTANCE: lubricating system has oil tank, injectors, ejector free to communicate with injectors, crossover valve with air and oil spaces, delivery line providing communication between oil tank and injectors, oil supply line running to ejector, compressed air line feeding ejector through air space of crossover valve whose oil space communicates with delivery line, and tank breathing line. Lubricating system is provided with additional injectors and second oil tank with breathing line accommodating safety valve communicating through second delivery line with additional injectors and through second compressed air supply line with crossover valve space. Check valves are mounted in first delivery line and in line running from ejector to injectors. In addition, both oil tanks are installed in common housing with second tank placed on top of first one for their intercommunication. EFFECT: increased oil reserving time and improved efficiency of bearing lubrication and cooling. 2 cl