DOC AIRBUS | AMM A320FOIL - GENERAL - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The lubrication system provides lubrication and cooling to the engine components.
The oil system includes separate pressure and scavenge pumps, a fuel cooled oil cooler, an air cooled oil cooler, an oil tank and associated valves and filters.
** ON A/C NOT FOR ALL The lubrication system provides lubrication and cooling to the engine components.
Engine Oil System - Schematic DiagramThe oil system includes separate pressure and scavenge pumps, a fuel cooled oil cooler, an air cooled oil cooler, an oil tank and associated valves and filters.
2. Component Location
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| FIN ! FUNCTIONAL DESIGNATION ! PANEL!ZONE!ACCESS ! ATA |
| ! ! ! ! DOOR ! REF. |
| ------------------------------------------------------------------------------- |
| 4000EN SW-LOW OIL PRESS 435 437AL 79-34-15 |
| 445 447AL |
| 4001EN SW-OIL FILTER DIFF PRESS 435 437AL 79-35-16 |
| 445 447AL |
| 4002EN XMTR-OIL QTY 435 437AL 79-31-15 |
| 445 447AL |
| 4003EN XMTR-OIL PRESS 435 437AL 79-33-15 |
| 445 447AL |
| 4004EN THERMOCOUPLE-SCAVENGE OIL TEMPERATURE 435 437AL 79-31-41 |
| 445 447AL |
| 4006EN INDICATOR-POS, No.4 SCAVENGE VALVE 436 438AR 79-23-51 |
| 446 448AR |
| 6000EM TANK-OIL 435 437AL 79-11-41 |
| - VALVE-OIL TANK 435 437AL 79-11-51 |
| 6002EM COOLER-OIL,AIR COOLED (ACOC) 436 438AR 79-21-42 |
| 6003EM COOLER-OIL,FUEL COOLED (FCOC) 435 437AL 79-21-43 |
| 6005EM FILTER ELEMENT-PRESSURE OIL 435 437AL 79-21-44 |
| 4019KS MODULATING VALVE-AIR COOLED OIL COOLER 436 438AR 79-21-51 |
| - PUMP-OIL SCAVENGE 435 437AL 79-22-41 |
| - FILTER HOUSING ASSEMBLY-SCAVENGE OIL 435 437AL 79-22-43 |
| 6001EM FILTER ELEMENT-SCAVENGE OIL 435 437AL 79-22-44 |
| - DETECTOR-MAGNETIC CHIP 435 437CL 79-22-45 |
| - VALVE-SCAVENGE,No4 BEARING COMPARTMENT 436 438AR 79-23-51 |
| 4016KS THERMOCOUPLE-ACOC OIL TEMPERATURE 436 438AR 79-32-15 |
| 4005EN TRANSDUCER-No4 BEARING PRESSURE 436 438AR 79-33-16 |
3. Operation
The oil leaves the tank and is routed to a one-stage pressure pump. The oil is piped through a pressure filter to the air cooled oil cooler (ACOC) and then to the fuel cooled oil cooler (FCOC).
After leaving the FCOC, the oil is delivered to the No. 1, 2, 3 bearing compartment, the No. 4 bearing compartment, the No. 5 bearing compartment and to both the main and angle gearboxes.
The scavenge oil is then piped, either directly or through the deoiler, to the scavenge pumps.
From the scavenge pumps all the oil is pumped in a common line to a fine scavenge filter and sent to the oil tank where it is de-aerated.
** ON A/C NOT FOR ALL The oil leaves the tank and is routed to a one-stage pressure pump. The oil is piped through a pressure filter to the air cooled oil cooler (ACOC) and then to the fuel cooled oil cooler (FCOC).
After leaving the FCOC, the oil is delivered to the No. 1, 2, 3 bearing compartment, the No. 4 bearing compartment, the No. 5 bearing compartment and to both the main and angle gearboxes.
The scavenge oil is then piped, either directly or through the deoiler, to the scavenge pumps.
From the scavenge pumps all the oil is pumped in a common line to a fine scavenge filter and sent to the oil tank where it is de-aerated.
4. Lubrication System Components
The lubrication system consits of four subsystems, each of which accomplishes a specific function to ensure adequate lubrication for the bearings and gears of the engine:
** ON A/C NOT FOR ALL The lubrication system consits of four subsystems, each of which accomplishes a specific function to ensure adequate lubrication for the bearings and gears of the engine:
- the lubrication supply system
- the lubrication scavenge system
- the oil seal pressurization system
- the sump venting system.