This aero-derivative gas-turbine engine is targeted at marine propulsion applications where space is at a premium. This multi-function pump was designed to mount directly to the engine gearbox and pull lube oil from a reservoir that could be located well below the engine in deep-V hull installations. Engine shutdown protocols required that scavenge circuits be designed to operate with 100% gas for extended periods of time.
Working Fluid | Synthetic Turbine Oil (e.g., MIL-PRF-23699, MIL-PRF-7808 |
Operating Speed, Maximum (rpm) | 4,400 |
Lubrication Flow @ 3600 rpm (gpm) | 24.5 |
Lubrication Pressure Rise (psid) | 100 |
Actuation Flow (gpm) | 2.4 |
Actuation Pressure Rise (psid) | 300 |
Scavenge Capacity, Circuits 1-4 @ 3600 rpm (gpm) | 11 |
Scavenge Capacity, Circuit 5 @ 3600 rpm (gpm) | 48 |
Scavenge Pressure Rise (psid) | 35 |
Mean Time Between Overhaul, MTBO (hours) | 40,000 |
Weight (lb) | 65 |
Size (in) | 5.4 D x 17.0 L |
for Gas Turbine Engine
Multi-circuit Gerotor Lube and Scavenge Pump