Ventilador evaporativo original TB5101, voltaje 24V, apto para maquinaria de construcción en stock.

Original TB5101 evaporative fan, 24V, suitable for stock construction machinery.

The term "bulldozer evaporative fan" is not very common, but considering the cooling systems of construction machinery, I understand you are probably referring to a fan system or related components in a bulldozer's cooling system that utilizes the principle of evaporative cooling to enhance heat dissipation.

Core Concept: Evaporative Cooling

Principle: Evaporative cooling utilizes the physical property of water absorbing heat during evaporation to lower the temperature. When water is sprayed onto the surface of a hot radiator (usually a water tank radiator or intercooler radiator) and blown by a fan, the water evaporates, carrying away a large amount of heat and significantly improving heat dissipation efficiency.

Purpose: In extremely hot working environments, high-load conditions, or when the radiator is partially blocked by dust/debris, air cooling alone may not be sufficient to keep the engine coolant temperature within a safe range. Evaporative cooling systems provide additional cooling capacity to prevent engine overheating.

"Bulldozer evaporative fan" likely refers to the core fan and its associated system in a bulldozer's cooling system that drives airflow through a radiator with a water spray device, utilizing water evaporation to enhance heat dissipation. It is an important auxiliary cooling device used to prevent engine overheating under extreme conditions.