An apparatus and a method are provided for an air intake assembly configured for use with Pro Stock vehicles comprising fuel injection equipped engines. The air intake assembly comprises an air inlet that includes a distal opening disposed in a forward direction at a front of the vehicle and configured to direct incident air into the air intake assembly. An air duct is joined with the air inlet by way of a first coupler configured to maintain an airtight seal between the air inlet and the air duct. A throttle body adapter is joined with the air duct by way of a second coupler configured to maintain an airtight seal therebetween. The throttle body adapter is configured to establish an airtight coupling between the air intake assembly and a throttle body of the engine, such that the incident air is directed into the throttle body.

An arrangement structure for devices in a power unit chamber of a vehicle includes an air cleaner disposed in the power unit chamber; a battery disposed adjacently to and behind the air cleaner in the vehicle; and a cover disposed above the battery and the air cleaner. The front end of the cover is located further forward of the vehicle than the rear end of the air cleaner, and the minimum dimension of a space between the cover and the air cleaner is greater than the height of the battery.

An air suction device for a vehicle equipped with an internal combustion engine. The air suction device includes a device guiding purified suction air for combustion in the direction of the internal combustion engine, and an air filter element and a housing receiving the air filter element, and at least one air guiding device. The air guiding device is formed in the shape of a channel and is provided for guiding suction air to the housing. The air guiding device extends in the region between a holding device and the housing. The holding device is formed to receive at least one light source and has an air leading channel adjacent to the light source, which is connected in an air guiding manner to the air guiding device.

A cold air intake system is provided for actively controlling airflow based upon user input and/or demand conditions. Two air inlets are provided into a sealed air box with the secondary air intake including an air control valve for modulating intrusion of intake air. The valve has a valve seat formed the housing sidewall and a flap door valve member actively actuated via a controller. The mass air flow sensor indicates total demand. A pressure sensor and a temperature sensor provide additional input from the airbox. The controller modifies the valve position based upon pressure, temperature and mass air flow. Control is biased to increase secondary air intake when airbox pressure decreases and biased to decrease secondary air intake when airbox temperature increases. Controller biasing occurs between 30 F. to 160 F. and over pressure ranges between 0.01 H.sub.2O to 5 H.sub.2O.

A system in a vehicle includes a primary intake manifold, a secondary intake manifold, a valve, and a computer. The primary and secondary intake manifolds are configured for an engine compartment of the vehicle. The secondary intake manifold is arrangeable to extend from outside the engine compartment to the valve. The valve is connected to each of the primary and secondary intake manifolds. The computer is in communication with the valve and programmed to identify a flood risk and then actuate the valve.

An air intake structure for a saddled vehicle including a downsized air cleaner box and a sufficient intake path is provided.

An air intake structure for a saddled vehicle applied to a saddled vehicle including an engine suspended from a vehicle body frame and an air cleaner box disposed behind the engine includes: a side cover mounted on a sidewall on an outer side in the vehicle width direction of the air cleaner box; and a side cover opening formed at the side cover toward the vehicle rear side. Outside air to be taken into the air cleaner box is taken from the side cover opening. The sidewall is provided with an intake opening, and the intake opening is covered with the side cover. The side cover includes a body that covers the sidewall, and a canopy member provided at the surface of the body. The side cover opening is formed of the outer edge of the canopy member.

A snorkel system comprising: (a) a vehicle adapter configured to connect to a vehicle; (b) one or more air tubes configured to extend along an interior of an engine compartment of the vehicle; and (c) one or more angle adapters adapted to be located within the engine compartment of the vehicle, the one or more angle adapters fluidly connecting the vehicle adapter and the one or more air tubes together; wherein the one or more angle adapters include: an inlet opening located within a first plane, the inlet opening being located proximate to and in fluid communication with the vehicle adapter, and an outlet opening being in communication with a first end of the one or more air tubes, the outlet opening being located within a second plane that is spaced apart from and extends substantially parallel to the first angle adapter.

An internal combustion engine capable of reducing an amount of dust taken from an outside air intake opening, with a simple configuration. The internal combustion engine includes a crankshaft, a cooling air intake device that houses a cooling fan coupled to the crankshaft and that includes a cooling air intake port, and an air cleaner device that feeds outside air to an air suction port to a cylinder, and the air cleaner device includes an outside air intake opening that opens toward the cooling air intake port.

An motorcycle air intake structure includes: a container divided by a main baffle into two distinct chambers: a first chamber communicating externally and a second chamber communicating with a throttled body via a feeding duct; the two chambers separated by an air filter, positioned at the main baffle, the first and second chambers extending longitudinally side-by-side defining opposite sides of the air intake structure. The air intake further includes a pre-chamber accessing the first chamber, separated therefrom by a cross wall and communicating therewith via an access duct crossing said wall, with an inlet end thereof arranged in the pre-chamber and an outlet end thereof arranged in the first chamber, the pre-chamber arranged on the front side with respect to a forward vehicle direction. The pre-chamber includes a front access mouth; and a diverting baffle interposed between the access mouth and the inlet end of the access duct.

The present invention relates to an autonomous agricultural machine comprising a frame having an inverted U-section, the autonomous agricultural machine having a roof and comprising a thermal engine system comprising an engine, the autonomous agricultural machine comprising a cooling system having an air circulation duct arranged in the upper part of the frame, directly under the roof, the duct having at least one opening to allow the intake of outside air into the air circulation duct and an upper air outlet to expel the hot air upwards, to the top of the roof, the cooling system also comprising a ventilation device to ensure air circulation in the air circulation duct, the air circulation duct being configured to allow the circulation of fresh air to cool the engine.