SYSTEM FOR PRESSURISING THE CABIN OF A VEHICLE OPERATING IN PARTICLE-LADEN AIR
The system (1) comprises an air intake (5) outside the cabin (2), a filter (8) and a turbine (10) for supplying the cabin (2) with pressurised air. According to the invention: - the air intake (5) is used to supply the engine of the vehicle with air; - the system (1) comprises an air intake duct (6) connected directly to the air delivery duct (7) extending between the air filter (8) of the engine of the vehicle and the motor or the turbo compressor (9) with which said engine is equipped; and - the turbine is a multi-stage turbine (10) which is capable of generating a depression greater than the maximum depression value likely to exist in the air delivery duct (7) depending on the clogged state of the air filter (8) of the engine, the speed of said engine and the load on said engine.