Part 1: Challenge & Opportunity – Fan Consumes 60-70% of Vehicle Energy

In the energy consumption structure of sweeper trucks, the fan system is the true "energy heavyweight"—its power consumption accounts for 60%-70% of total vehicle energy use. This means that to achieve vehicle-level energy savings, the fan system must be the primary target for retrofit.

Traditional fan designs suffer from three inherent pain points:

• High eddy current losses: Airflow generates vortices within blades and flow channels, directly converting into wasted energy

• Low aerodynamic efficiency: Simple blade profiles cannot fully utilize airflow energy

• High idling energy consumption: Fans run continuously at full speed, even in areas without debris

  

However, behind the challenge lies enormous optimization potential. Multiple industry case studies show that systematic design optimization can reduce fan system energy consumption by 10%-36%. This means that the 15% vehicle-level energy reduction target is entirely achievable—the key lies in precisely identifying and eliminating energy loss points.