An air intake system for a commercial vehicle is disclosed. The air intake system includes a hood with at least one frontal intake opening through which air to be guided to an engine of the commercial vehicle can flow and with at least one plenum configured to receive air flowing through the intake opening. The air intake system further includes at least one air pipe having at least one air duct with at least one inlet opening through which the air flowing through the frontal intake opening can flow, the air duct arranged upstream of and fluidically connected with the plenum so as to guide the air to and into the plenum. The air intake system additionally includes at least one air filter and at least one silencer plate arranged upstream of the air filter, the silencer plate having a plurality of through openings through which the air can flow.

An engine intake structure comprises an intake passage member 18 which defines an intake passage 36 for supplying air to an internal combustion engine 12, and which also defines a resonator chamber 40 in communication with the intake passage 36; and an in-vehicle device 14 located in an engine room 10 of a vehicle and having a preset reference temperature for temperature control, the intake passage member 18 being located above and adjacent to the in-vehicle device 14. The intake passage 36 extends above the in-vehicle device 14 so as to at least partially overlap the resonator chamber 40 as viewed in a vertical direction, thereby forming a two-layer structure, which makes the in-vehicle device 14 less affected by ambient temperature in the upper part of the engine room 10.

Vehicle Engine Air Intake System and Method (to be accompanied by FIGS. 1 and 3) In a motor vehicle (12), an air filter housing (14) is at least partially defined by a cross-member (28) forming part of a structural front end module of the vehicle body. The cross-member (28) defines a recess (44) for receiving an air filter (90) and at least one air inlet aperture opening into the recess. An air filter enclosure assembly is mounted to the cross-member over an open face of the recess. The air filter enclosure assembly may include an air filter enclosure (42) and an air filter (90).

An air intake system for a vehicle has a conduit having an internal wall forming an air passage. A deflector is disposed within the air passage. A restricting structure is disposed within the air passage between the deflector and a conduit outlet. The restricting structure defines at least in part an opening substantially laterally aligned with the deflector. The restricting structure has a lateral wall disposed downstream of the deflector and extending within the air passage. The lateral wall has a front surface generally facing a conduit inlet, and a plurality of surface-increasing features provided on the front surface. Each of the surface-increasing features has a length of at least 1 mm measured from the front surface in a direction normal thereto. An air intake system having a collector connected to the deflector and positioned to collect at least some moisture from air flowing past the deflector is also described.

In one aspect, an apparatus may include a base member being defined by an aperture configured to receive and engage an automobile intake box, the base member being further defined by a perimeter surrounding the aperture and having at least one fastener or aperture configured to receive a fastener dimensioned to avoid disturbing the automobile intake box; a base member fixedly attached to the base member, the base member having a first end opening and a second end opening, the base member having an interior cavity configured to direct air into the automobile intake box from the second end opening to the first end opening through the interior cavity; and an interchangeable bell housing removably secured to the second end opening of the base member, the interchangeable flare housing having a plurality of types of shaped cross sections on at least one plane.

An intake sound amplifier amplifies intake sound that is transmitted from an engine mounted in an engine compartment of a vehicle to a cabin. The intake sound amplifier includes a first passage branched from an intake passage, through which intake air is introduced into an engine; a device body that includes a vibrating body vibrated by pulsation of the intake air and is connected to a downstream end of the first passage; and a second passage that is connected to a downstream end of the device body and extends to the cabin side. The device body is located outward in a vehicle width direction of a side frame that extends in a vehicle front-rear direction and separates inside of the engine compartment from outside in the vehicle width direction.

Air induction systems are for an internal combustion engine. The air induction systems comprise an air intake plenum that conducts intake airflow to an air cleaner for cleaning prior to combustion in the internal combustion engine. The air intake plenum is movable with respect to the air cleaner between an open position separated from the air cleaner and a closed position connected to the air cleaner. A bellows connects the air intake plenum to the air cleaner when the air intake plenum is in the closed position. The bellows has an upstream first end that seals with the air intake plenum and a downstream second end that seals with the air cleaner.

A cover covering an engine and an intake duct for introducing fresh air outside an engine room into a combustion chamber of the engine are provided in the engine room. The cover includes a top face cover portion covering the engine from above, and a side face cover portion covering the engine from the lateral side. The intake duct is disposed so as to be continuous to a side edge of the side face cover portion such that the intake duct covers the engine from the lateral side together with the side face cover portion.

A vehicle including an air intake system for an engine component includes a vehicle frame including one or more frame components, at least one of the one or more frame components includes an engine air passage and at least one intake port in communication with the engine air passage. At least one duct port of the frame component is in communication with the engine air passage. An engine component is coupled with the vehicle frame, and an intake duct extends from the at least one duct port to the engine component.

An air intake assembly arranged in an engine compartment of an automotive vehicle and configured for directing air into a throttle body of an engine of the vehicle is provided. The air intake assembly includes an air intake duct and an air jacket. The air intake duct is configured to direct air from an inlet duct to the throttle body. The air jacket is arranged around the air intake duct. The air jacket has a first air jacket opening and a second air jacket opening. The air jacket forms an air gap between the air jacket and the air intake duct. Air flowing through the air jacket from one of the first and second air jacket openings to the other of the first and second air jacket openings cools the air intake duct thereby reducing a temperature of air directed from the intake duct into the throttle body.