The disclosure provides a work vehicle in which clogging of a filter of an air cleaner with snow can be suppressed. The work vehicle includes: a radiator that cools cooling water for an engine; an air cleaner that cleans air to be fed to the engine; and an inlet hose that has an aspiration port open on a rear side of the radiator and leads the air from the aspiration port to the air cleaner. The radiator includes a shroud having an opening in which a fan of the engine is disposed and the aspiration port is disposed not to overlap with the opening of the shroud in back view.

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 combustion air filtration apparatus for filtering combustion air for an engine is disclosed. The combustion air filtration apparatus comprises a combustion air source and a filter system fluidly coupled to the combustion air source and to the engine to receive combustion air from the combustion air source and to supply filtered combustion air for the engine. The filter system comprises a first combustion air filter, a second combustion air filter flow-parallel to the first combustion air filter, and a flow control system fluidly coupled to the first combustion air filter and the second combustion air filter to direct flow of combustion air selectively between the first combustion air filter and the second combustion air filter.

The invention relates to an air cleaner housing for a vehicle, comprising an outer and an inner circumferential wall, and a space therebetween adapted to house at least one filter element for filtering air, wherein the inner circumferential wall is provided with openings to allow filtered air to pass radially inwardly through the inner circumferential wall. The air cleaner housing comprises a first end and an open second end for fluidly connecting the air cleaner housing to a turbo, the open second end being located opposite the first end. The air cleaner housing comprises a resonator, wherein the entire resonator is encircled by the inner circumferential wall such that air entering through the inner circumferential wall passes on the outside of the resonator to and through the open second end.

The invention relates to a filter element for mounting in an air cleaner housing of a vehicle. The filter element comprises a circumferential filtering wall through which air is allowed to enter. The filter element also comprises a first end and an open second end for fluidly connecting the filter element to a turbo. The open second end is located opposite the first end. The circumferential filtering wall extends from the first end towards the open second end. The filter element further comprises a resonator. The entire resonator is encircled by the circumferential filtering wall such that air entering through the circumferential filtering wall passes on the outside of the resonator to and through the open second end.

To provide a construction machine capable of improving cooling efficiency of a heat exchanger and reducing noise in a configuration in which a prime mover, a heat exchanger, and an air cleaner for supplying clean air to the prime mover are arranged in an engine room. The excavation work machine comprises an engine room provided on a swivel frame and housing equipment including an engine and a heat exchange unit, a ventilation part provided on a right exterior cover forming a side wall of the engine room and having a plurality of ventilation holes for communicating inside and outside of the engine room, and an air cleaner arranged between the heat exchange unit and the ventilation part in the engine room, and supplying cleaned air to the engine.

An intake tower for a work vehicle has a grille with a front face and a duct defining an internal volume and an air intake. The air intake has a periphery at which the grille is mounted and first and second ends. The first end of the air intake is closer to a region of relative low pressure within the internal volume of the duct than the second end. A partition extending between the first and second ends of the air intake is recessed from the front face of the grille. The partition defines one or more intake openings leading to the internal volume of the duct. The opening(s) or portion thereof define a first flow area at the first end of the air intake and a second flow area at the second end of the air intake. The first flow area is lesser than the second flow area, and the opening(s) or portion thereof defining the first flow area is located nearer the front face of the grille than the opening(s) or portion thereof defining the second flow area.

A combustion air filtration apparatus for filtering combustion air for an engine is disclosed. The combustion air filtration apparatus comprises a combustion air source and a filter system fluidly coupled to the combustion air source and to the engine to receive combustion air from the combustion air source and to supply filtered combustion air for the engine. The filter system comprises a first combustion air filter, a second combustion air filter flow-parallel to the first combustion air filter, and a flow control system fluidly coupled to the first combustion air filter and the second combustion air filter to direct flow of combustion air selectively between the first combustion air filter and the second combustion air filter.

A precleaner for engine air filtration includes a housing, separator tubes for inducing cyclonic airflow, and channel arrangements in airflow communication with the separator tubes to channel airflow and particulates toward a dust outlet arrangement.

The invention relates to a an air supply arrangement (100) for supplying air from the atmosphere towards an internal combustion engine in a vehicle, the air supply arrangement comprising an air intake (101) for intake of air from the atmosphere, an air outlet (102) for outlet of air towards the internal combustion engine, and an air duct (103) for leading air from the air intake (101) in a downstream direction to the air outlet (102). A separator (200) is arranged in the air duct (103) so as to divide the air duct (103) into an upstream portion (104) and a downstream portion (105) for filtering of atmospheric air from debris by passage of said atmospheric air through the separator (200). The air supply arrangement (100) further comprises a compressed air delivery arrangement (300) being arranged to supply compressed air towards the separator (200) for cleaning the separator (200) from assembled debris.