In one aspect, an air intake system for supplying air to an engine of a work vehicle may include a cooler box having a first wall and a second wall, with the first and second walls at least partially defining a chamber within the cooler box. The air intake system may also include a screen defining at least a portion of the first wall of the cooler box. Furthermore, the air intake system may include an air filter assembly defining at least a portion of the second wall of the cooler box. The air filter assembly may be configured to remove particles present in the air exiting the chamber of the cooler box through the air filter assembly. The air exiting the cooler box through the air filter assembly may be supplied to the engine for combustion.

In an intake device, an upper fuel injection device that injects a fuel and a suction port that suctions the air-fuel mixture supplied to a cylinder head are disposed in the air cleaner. The intake device includes the air cleaner including an air cleaner case and a sidewall filter that purifies an air suctioned into the air cleaner case. The sidewall filter partitions a space in the air cleaner case in a vehicle width direction, and has at least partially overlapping with the upper fuel injection device in the vehicle width direction.

A silencer of a compressor for aspirating air to be compressed, with a housing having a front plate and a rear plate, a circumferential surface extending between the front plate and rear plate and bordering a suction area, via which the air can be aspirated, and a recess in the rear plate, via which the aspirated air can be supplied to the compressor. A flow-carrying metal component, in particular a wire component, is arranged in or adjacent to the suction area as a flame absorber.

A control method for controlling an air intake system for an engine of a vehicle; the intake system has a main air intake coupled to an air filter provided with a heating device. The control method comprises the steps of: determining a pressure difference between upstream and downstream of the air filter; determining a variation speed of the pressure difference between upstream and downstream of the air filter by calculating the first derivative in time of the pressure difference between upstream and downstream of the air filter; and turning on and/or turning off the heating device based on the variation speed of the pressure difference between upstream and downstream of the air filter.

In one aspect, an air intake system for supplying air to an engine of a work vehicle may include a cooler box having a first wall and a second wall, with the first and second walls at least partially defining a chamber within the cooler box. The air intake system may also include a screen defining at least a portion of the first wall of the cooler box. Furthermore, the air intake system may include an air filter assembly defining at least a portion of the second wall of the cooler box. The air filter assembly may be configured to remove particles present in the air exiting the chamber of the cooler box through the air filter assembly. The air exiting the cooler box through the air filter assembly may be supplied to the engine for combustion.

An air intake system for directing intake air to an internal combustion engine of a machine is disclosed. The air intake system may comprise an air compressor configured to increase a pressure of the intake air, and a membrane unit downstream of the air compressor and having a membrane with selectivity for siloxanes. The membrane may have a first side and a second side, and the first side may be exposed to a higher pressure than the second side when the air compressor is operating. The membrane may be configured to separate the intake air into a permeate that traverses the membrane from the first side to the second side, and a retenate that remains on the first side. The permeate may have a higher siloxane content than the retenate. The retenate may be directed to the internal combustion engine for combustion.

An agricultural vehicle is disclosed having an engine compartment. A cooling package is mounted near a forward end of the engine compartment, the cooling packaging including heat exchangers that are movable relative to one another between an operating position and a cleaning position. The engine is mounted near a rearward end of the engine compartment. The engine is fitted with an intake air duct leading from the engine to the forward end of the engine compartment to allow intake air to be admitted into the engine while bypassing the cooling package and thereby avoiding the engine intake air being heated. The intake air duct is articulated so as not to interfere with the movement of the heat exchangers of the cooling package between the operating and cleaning positions.

An air cleaner device that is positioned forward of a radiator, has a bottom surface inclined backward and upward to face the radiator side, and purifies air sent to an engine, and a discharge pipe that is disposed to extend from the bottom surface of the air cleaner device to the lower portion of the radiator and discharges dust separated by the air cleaner device are included.

A straddle-type vehicle comprises a front wheel and a rear wheel, an engine disposed between the front wheel and the rear wheel, an air cleaner box disposed above the engine, and a vehicle body behavior sensor provided on a periphery of the air cleaner box and located above a bottom wall surface of the air cleaner box.

An air intake system for directing intake air to an internal combustion engine of a machine is disclosed. The air intake system may comprise an air compressor configured to increase a pressure of the intake air, and a membrane unit downstream of the air compressor and having a membrane with selectivity for siloxanes. The membrane may have a first side and a second side, and the first side may be exposed to a higher pressure than the second side when the air compressor is operating. The membrane may be configured to separate the intake air into a permeate that traverses the membrane from the first side to the second side, and a retenate that remains on the first side. The permeate may have a higher siloxane content than the retenate. The retenate may be directed to the internal combustion engine for combustion.