Nivomat, loaded, unregulated, function

P32.30-2069-12

26 High pressure reservoir

27 Low pressure reservoir

28 Bypass

29 Pump

30 Drain hole

31 Piston rod

32 Carrier element

33 Height regulator

Function requirements:

 The vehicle is loaded when stationary

 The rear has lowered as a result of the payload

As the vehicle starts to move, relative movement between the axle and body cause the oil to be pumped from the low pressure reservoir (27) against the gas cushion in the high pressure reservoir (26). As the piston rod (31) extends, the oil is drawn into the pump (29) through the inlet valve. As the piston rod moves inwards, the oil is pressed into the high pressure reservoir (26) through the outlet valve.

The pressure in the low pressure reservoir (27) decreases continuously and the pressure in the high pressure reservoir (26) increases continuously.

 The vehicle level can only be adjusted when the vehicle is in motion since the Nivomat is a purely mechanical system.