ENGINE OIL LUBRICATION CIRCUIT

Description 1084B

1.3 Multijet

DESCRIPTION OF COMPONENTS

OIL FILTER AND HEAT EXCHANGER ASSEMBLY

This assembly includes both the filter element and the heat exchanger with the oil filler plug at the side.

1 - Oil filler plug

2 - Filter element cover

3 - Oil /water heat exchanger

ENGINE OIL PUMP

The engine oil is drawn in by the sump by means of the vacuum created by the rotation of the gears on the crankshaft.

There is a vacuum from the partition (1) for the gears as far as the oil sump suction head.

The pressure develops starting from the partition (1) in all the engine supply ducts (2).

When the pressure exceeds 5 bar, the force exerted on the restricter valve (6) overcomes the reaction of the spring underneath and moves the valve until the connecting duct (8) between the pressure chamber (7) and the low pressure chamber (5) opens.

1 - Partition

2 - Oil supply duct

3 - Driven gear

4 - Drive gear

5 - Low pressure chamber

6 - Relief valve

7 - Pressure chamber

8 - Connecting duct between high and low pressure