The crankshaft, located at the base of the engine and spins as a result of the vertical movement of the pistons, is precisely timed to the movement of the camshaft. It is crucial that the timing of their movement be precise since, in most engines, open valves and pistons occupy the same space within the cylinder at different moments. The dependability of the oil distribution and scavenge system determines how effectively the accessory drive system operates. The primary function of the engine oil pump is to pressurize engine oil and provide it to the bearings, pistons, and camshaft.
Below you can see how engine oil is routed across engine subsystems in aircraft:
Cooling
The main scavenge line's oil is introduced to the fuel oil heat exchanger and cooled while the fuel is heated. Metal tubes make up, through which pressurized gasoline travels. Heat exchange cools hot engine oil as it circulates through the metal tubes.
To avoid mixing pressurized fuel and engine oil, which could cause smoke or a fire in the engine, the metal tubes inside the FOHE must be frequently inspected. Engine oil is returned to the tank without being cooled in hot-tank designs.
Filtration
The recovery oil filter receives the cooled oil and filters out the impurities using a filter element. Most oil filters are designed to let incoming oil pass via the oil engine water pump and enter the filter element from the outside, leaving any pollutants and debris on the filter's face for inspection.
A pressure switch attached to the scavenge oil filter transmits a differential pressure reading to the cockpit control, which is used for filter clogging warning indication. The cooled and filtered oil is returned to the oil tank.
Supply and scavenge
The oil tank, which is frequently fastened to the outside of the fan case, is used to hold engine oil. The location of the oil tank enables periodic inspection and necessary oil top-up. The aircraft cockpit control receives the oil tank level from an oil quantity transmitter.
The lube and scavenge pump's functions include pressurizing, supplying, and removing oil from internal parts. The oil is drawn from the oil tank into the lube and scavenge pump after passing through numerous wash screens to filter out large particles. Before going through a supply filter, the oil is pressurized in the pump. Oil is applied to lubricate engine bearings, gears, and crankshafts through pressurized nozzles.
Additionally, sensors and switches for oil pressure receive pressurized oil. The pump has numerous scavenge components that enable oil evacuation from various bearing compartments. A unique magnetic chip detector and a filter screen are included in each scavenge element. A differential oil pressure reading is sent from a pressure transmitter mounted on the scavenging line to the cockpit control. The main engine lube oil pump helps cool the engine and lubricate the bearings while enabling higher-capacity fluid bearings. Engine oil temperature is provided to the cockpit control of the aircraft through an oil temperature sensor immersed in the main scavenging line.
Final thoughts
As a result, the above details are about how engine oil is routed across engine subsystems in aircraft. Garima Global Pvt. Ltd is the leading automotive components manufacturer and here you can get all types of engine parts.
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