What type of cooling device utilizes a heat exchanger to regulate temperature in firefighting equipment?

Oil coolers are specifically designed to utilize a heat exchanger to remove excess heat from engine oil or other fluids in firefighting equipment. In the context of firefighting, maintaining an optimal operating temperature for the apparatus is crucial to ensure efficiency and prevent damage during operation. Oil coolers circulate oil through a series of passages where it transfers heat to a cooling medium, often air or water, depending on the design. This ensures that the oil remains at a temperature that allows for proper lubrication and operation of the engine and related components.

While water coolers also serve a cooling purpose in firefighting equipment, they typically refer to systems that cool water rather than functioning as heat exchangers for oils. Air coolers, on the other hand, may utilize air convection for cooling but do not specifically involve the transfer of heat with a focus on fluids like oil. Thermal shields, while used in some applications, primarily provide insulation rather than actively regulating temperature through heat exchange.