Pneumatic levelling system for a vehicle.

摘要

A pneumatic levelling system for a vehicle includes a pressure-balancing valve assembly 58 incorporated within a removable end cap (68) of the system air dryer (42). The pressure-balancing valve assembly is operative to limit the pressure in the pneumatic suspension units (34) while allowing effective pump-up and restriction-release for desiccant regeneration in accordance with changes in vehicle loading.