Compact utility machine with a passive cooling system

A compact loader, comprising:

• a chassis that includes a frame;
• an operator platform that is supported on the chassis, that that is configured to support a standing operator, and that is located toward a back end of the compact loader;
• an engine compartment that defines an enclosure supported by the frame;
• an air-cooled engine mounted within the engine compartment;
• a hydraulic system having an oil cooler that is configured to cool hydraulic oil of the hydraulic system;
• a passive cooling system, including:
• an exhaust fan that is driven by the air-cooled engine to drive an airflow out of the engine compartment longitudinally downstream of the engine;
• an engine-cooling fan that is driven by the air cooled engine and that delivers engine cooling air toward across the engine and toward the exhaust fan;
• an air inlet that extends through the engine compartment;
• and
• wherein:
• the oil cooler is mounted inside of the engine compartment, that is aligned with the air inlet to receive an airflow from the air inlet, and that is located upstream of each of the exhaust fan and the engine-cooling fan.

A method of operating a compact utility machine that defines an operator end and an opposite tool end, the compact utility machine having passively cooling components within an engine compartment of the compact utility machine, the method comprising:

• running an air-cooled engine that is housed in the engine compartment;
• rotating an exhaust fan with the engine in the engine compartment;
• establishing a negative pressure zone in the engine compartment toward the operator end of the compact utility machine by directing an airflow through the engine compartment by pushing a volume of air out of the engine compartment toward the tool end with the exhaust fan;
• and
• cooling a component that is mounted within the negative pressure zone of the engine compartment with the airflow that flows from the operator end of the compact utility machine to the tool end of the compact utility machine.