An air cleaner assembly can contain an air filter element to filter contaminant material out of an air stream. In some examples, the air cleaner assembly includes a housing with an integrated noise suppression chamber for supplying air to a downstream compressor. The housing forms a cavity into which an air filter element is inserted. Contaminated air enters the housing and passes through the air filter. Filtered air can discharge from the housing through a first opening supplying air to a combustion engine and a second opening supplying air to a compressor. Air supplied to the compressor passes from the interior of the housing containing the filter element and through the integrated noise suppression chamber before being discharged. The acoustic energy released by the filtered air stream exiting the air cleaner assembly may be reduced by passing through the noise suppression chamber.

An air filter system for a utility vehicle includes a filter housing, a coarse filter located on an inlet side and accommodated in the filter housing, a fine filter arranged downstream in a filter operating direction of an airflow to be cleaned, and a cleaning arrangement accommodated in the filter housing for purging dirt particles separated at least in the fine filter counter to the filter operating direction.

Each time clogging of a filter (5) of an air cleaner is determined on the basis of intake negative pressure of an engine (2), and the air filter (5) is cleaned, an accumulated value of operating time of the engine (2) from previous cleaning until clogging is determined is taken as a cleaning interval (S), and sequentially measured. A plurality of stages are previously set by classifying a minimum value and a maximum value of the cleaning interval (S), and the measured cleaning interval (S) is added to the stage to which the measured cleaning interval (S) is to belong, among the stages. A histogram in which an axis of abscissas is taken as the stage, an axis of ordinates is taken as frequency of the cleaning interval (S) is constructed, and an approximate straight line (L2) illustrated by a solid line is obtained by approximating a characteristic line (L1) of the histogram illustrated by a dotted line to a straight line. A characteristic of the histogram is changed as the deterioration of the air filter (5) progresses, and when a slope of the approximate straight line (L2) based on the characteristic gradually decreases from right-upward slop illustrated by a thin line, exceeds (ΔY/ΔX=0) equivalent to the horizontal, deterioration of the air filter is determined.

A prime mover includes an engine, a fan to generate a cooling airflow around the engine, an air-intake tube to supply outside air to the engine, a connection tube to supply, to the air-intake tube, a blow-by gas generated in the engine, and a wind shielding member to shield the connection tube from the cooling airflow, the wind shielding member being arranged around the connection tube.

In one aspect, an aspiration system for a work vehicle includes an exhaust tube extending along a flow direction and an aspiration tube in flow communication with the exhaust tube at an aspiration zone of the exhaust tube such that the aspiration tube is configured to receive an aspirated airflow. The system also includes an airflow area modifier provided in operative association with the aspiration zone and actuatable to adjust a cross-sectional flow area of the exhaust tube within the aspiration zone. The system includes an actuator provided in operative association with the airflow area modifier such that the actuator is configured to alter an orientation of the airflow area modifier such that the cross-sectional flow area of the exhaust tube within the aspiration zone is adjusted.

This compressed air generation system (12) for an automotive vehicle (V) comprises: —a turbocompressor (4) feeding an internal combustion engine (2) of the automotive vehicle (V) with compressed air, —an air compressor (8), —at least one compressed air tank (10) connected to an outlet pipe (82) of the air compressor (8), the air compressor (8) comprising an inlet pipe (80) fed with compressed air from the turbocompressor (4). The compressed air generation system (12) comprises a pressure regulator (14) placed downstream the turbocompressor (4) and upstream the air compressor (8) and which limits the pressure (P8) of the compressed air fed from the turbocompressor (4) to the air compressor (8) to a first threshold (T1).

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.

An air filter system for a utility vehicle includes a filter housing, a coarse filter located on an inlet side and accommodated in the filter housing, a fine filter arranged downstream in a filter operating direction of an airflow to be cleaned, and a cleaning arrangement accommodated in the filter housing for purging dirt particles separated at least in the fine filter counter to the filter operating direction.

An air management assembly for a work machine, the air management assembly having a cooling orifice defined in a panel, a cooling fan generating a cooling airflow through the cooling orifice to a cooling package, at least one fixed screen positioned along an intake orifice, and a first baffle positioned at least partially between the cooling orifice and the intake orifice. Wherein, the first baffle directs the cooling airflow partially across the fixed screen to clear the fixed screen of debris.

A centrifugal air filter for an automotive system includes a plurality of single separators for setting an air flow passing therethrough in a turbulent motion and a separation area surrounding the plurality of single separators. The separation area receives particles from the air flow due to the centrifugal forces. A filter housing portion is located below a predefined or operation position for receiving particles from the air flow due to gravity, and an intake pipe is connected by an extraction line to a connecting pipe emerging on a filter housing and opening into the filter housing portion.