Oil System Flashcards
Function of the oil system
Cool, lubricate, clean, prevent corrosion.
What type of oil is used in a jet engine?
Synthetic Oil
What type of oil system is used?
Dry Sump System.
Scavenge pump returns oil to the tanks via coolers and filters.
Labyrinth Seals
Use high pressure to prevent oil from escaping.
What happens to higher speeds to oil pressure, and air pressure?
Both increase proportionally.
Where are the oil temperature sensors located?
After the cooler, before scavenge pump.
What parameters do the cockpit displays show of the oil system?
Quantity, temperature, pressure.
SOAP
Spectrometric Oil Analysis Program - extend/reduce intervals accordingly, health monitoring of the engine.
Chip Detectors
Provide warning of impending failure, without having to remove filters to inspect.
Fuel-oil heat exchanger
Cools oil, heats fuel.
Uses oil and is located on the low pressure side.
One of the causes of high oil temperature in a gas turbine engine at constant power setting is
Malfunction of the FOHE
If the main oil filter of a gas turbine engine becomes clogged, oil is still assured because?
Because the oil filter bypass valve opens due to differential pressure.
A pressure relief valve in an oil system that does not seat correctly could result in:
Low Oil Pressure
The reading on the engine oil pressure gauge is located
Downstream of the pressure pump
