Function of Fuel Tank with Splash Pot - ra47006020b10x(0010)

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Engine 603.97 in Model 140

B. Model 140

Fig 1: Identifying Fuel Level In Splash Pot

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

A splash pot (67) is installed in the fuel tank and is designed to ensure that the engine is reliably supplied with fuel when driving on roads with long curving sections with a low level of fuel in the tank.

The fuel return jet flows out of the return nozzle at high speed into the splash pot when the fuel pump is running. It thus draws with it the fuel around the return jet into the splash pot. The return jet is located on the

bottom of the splash pot. The level of fuel (h) in the splash pot is retained even if the fuel level in the tank drops below the level (h).

The gas vapors contained in the fuel which flows back are separated in the separating chamber (67/1) and rise up along the riser line (71). This avoids splashing noises.