A utility vehicle includes: an air-cooled engine; a cooling fan disposed on one side of the engine with respect to a vehicle widthwise direction and configured to supply a cooling air towards a cylinder unit of the engine; an exhaust pipe disposed on the other side of the engine with respect to the vehicle widthwise direction and connected with an exhaust port of the cylinder unit; an oxygen sensor fitted to the exhaust pipe; and a shield configured to prevent muddy water, which is swirled by the cooling fan, from depending on the exhaust pipe.

The work vehicle includes an engine, a radiator; a hydraulic pump; a cooling fan that blows a cooling air to the radiator; a hydraulic motor which is driven by a pressure oil delivered from the hydraulic pump, and rotates the cooling fan; a directional control valve that switches a flow direction of the pressure oil from the hydraulic pump to rotate the hydraulic motor in forward and reverse directions; and a controller that controls the directional control valve so as to cause the repetitive operation of the forward and reverse rotation of the cooling fan to be performed at predetermined time intervals, in which the controller reduces the time intervals more than a normal time initially set when a relationship between the outside air temperature detected by the outside air temperature sensor and the refrigerant temperature detected by the refrigerant temperature sensor satisfies a predetermined condition.

Intake assemblies for an engine are provided. In one aspect, an air intake assembly includes a screen defining a plurality of air passage holes therein, a fan, a flywheel, a crankshaft, and a screen support member coupled to the screen. The fan, the flywheel and the screen support member are coupled to the crankshaft with a single fastener, and the screen, the fan, the flywheel, the crankshaft and the screen support member all rotate together. In one aspect, the screen support member supports the screen a distance away from the fan such that the screen is completely spaced-apart from and does not engage the fan. In one aspect, a screen support member includes a base near one end of the screen support member and a plurality of coupling locations near a second end. The screen couples to the screen support member at the plurality of coupling locations.

Intake assemblies for an engine are provided. In one aspect, an air intake assembly includes a screen defining a plurality of air passage holes therein, a fan, a flywheel, a crankshaft, and a screen support member coupled to the screen. The fan, the flywheel and the screen support member are coupled to the crankshaft with a single fastener, and the screen, the fan, the flywheel, the crankshaft and the screen support member all rotate together. In one aspect, the screen support member supports the screen a distance away from the fan such that the screen is completely spaced-apart from and does not engage the fan. In one aspect, a screen support member includes a base near one end of the screen support member and a plurality of coupling locations near a second end. The screen couples to the screen support member at the plurality of coupling locations.

An engine assembly includes an engine compartment containing an internal combustion engine and a cooler compartment adjacent the engine compartment containing a heat exchanger. The engine and cooler compartments have an opening defined therebetween. A forced air system is operable to drive an airflow. A method for cooling the engine and its compartment is disclosed.

A shield assembly that may be disposed within an engine compartment of an agricultural vehicle, the shield assembly includes a plurality of shields that may block buildup of debris within the engine compartment. At least one shield of the plurality of shields includes a sloped surface that may direct debris away from the engine compartment. The shield assembly also includes a plurality of ducts formed between the plurality of shields. The plurality of ducts may redirect cooling fluid from a cooling fan package to the engine compartment to remove debris from within the engine compartment.

An air-cooled internal combustion engine including a crankshaft rotating about a crankshaft axis, a first cylinder having a first cylinder head, a second cylinder having a second cylinder head, and a blower assembly. The blower assembly includes a blower housing, a first fan, and a second fan. The first fan is positioned proximate the first cylinder and the second fan is positioned proximate the second cylinder.

An air-cooled internal combustion engine including a crankshaft rotating about a crankshaft axis, a first cylinder having a first cylinder head, a second cylinder having a second cylinder head, and a blower assembly. The blower assembly includes a blower housing, a first fan, and a second fan. The first fan is positioned proximate the first cylinder and the second fan is positioned proximate the second cylinder.

Systems and methods for water management in a vehicle using a fluid management assembly are disclosed. The fluid management assembly includes a housing in fluid communication at one end with a vent in the hood of the vehicle and at a second end with a radiator of the vehicle. Air flow from the radiator is directed to the vent, and water and other liquids entering the vent are diverted away from the radiator via a drainage spout extending from a bottom side of the fluid duct assembly.

Systems and methods for water management in a vehicle using a fluid management assembly are disclosed. The fluid management assembly includes a housing in fluid communication at one end with a vent in the hood of the vehicle and at a second end with a radiator of the vehicle. Air flow from the radiator is directed to the vent, and water and other liquids entering the vent are diverted away from the radiator via a drainage spout extending from a bottom side of the fluid duct assembly.