A hood air intake and water separation system includes a first separation chamber having a first inlet fluidly coupled to a hood intake vent of the vehicle, a first outlet, and at least one first drain opening. The first separation chamber is configured to separate water and air ingested through the intake and direct the separated water through the at least one first drain opening and direct the separated air through the first outlet. A second separation chamber includes a second inlet fluidly coupled to the first separation chamber first outlet, a second outlet, and at least one second drain opening. A third chamber includes a third inlet fluidly coupled to the second separation chamber second outlet, and a third outlet. The first and second separation chambers are configured to direct ingested water away from an airpath to the engine.

An apparatus may comprise a base member being defined by a rectangular aperture configured to receive and engage an automobile intake box, the base member being further defined by a perimeter surrounding the rectangular aperture and having at least one fastener or aperture configured to receive a fastener dimensioned to avoid disturbing the automobile intake box; a gooseneck member fixedly attached to the base member, the gooseneck member having a first end opening and a second end opening, the gooseneck 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 gooseneck member, the interchangeable bell housing having a frustoconical shaped cross section on at least one plane.

An intake duct structure of a motorcycle includes front forks disposed on both of right and left sides of a head pipe of a body frame and a main frame extending obliquely backward and downward from the head pipe, wherein the intake duct structure extends from a front end of the motorcycle toward the head pipe and is formed in such a manner that an interfered area where a rotational orbit of the front forks at a time of steering overlaps the intake duct structure is elastically deformable.

A precleaner system for an air intake system. The precleaner system includes precleaners each having flow paths that induce a rotation to air flow and separate out particulate matter. The particulate matter is ejected from an outlet port in each of the flow paths and out of a dust ejector. The precleaned air is collected into a plenum from each of the precleaners. The precleaned air can flow from the plenum to a precleaner system outlet and the precleaned air can be received by an air intake system. A cover can be used to block air flow through one of the precleaners to tune the precleaner system to the desired airflow.

An apparatus and a method are provided for a multiple inlet air box to communicate an airstream through an air filter to an air intake duct of an internal combustion engine of a vehicle. The multiple inlet air box is comprised of a housing that supports the air filter within an interior of the housing. A mount portion within the housing fixedly receives a base of the air filter. Multiple air inlets couple with corresponding air inlet ports of the vehicle to direct the airstream into the multiple inlet air box. A duct directs the airstream from the multiple air inlets to the interior of the housing. A conduit communicates the airstream from an interior of the air filter to the air intake duct of the internal combustion engine.

A snorkel installation kit includes a fender pipe and a snorkel. The fender pipe has an air intake. The snorkel has a protrusion defining an outlet that is received by the air intake of the fender pipe. The fender pipe and the snorkel are separated by a space when installed to each other.

A snow bike intake, snow bike conversion kit, and/or air intake pod snow bike conversion kit, having: a throttle body coupling; an elbow-shaped intake duct coupled to the throttle body, a pre-filter body cage coupled at a rear thereof to the duct, and a textile cover fitting about the cage. The duct has an interior angle between 40 and 60 degrees. There are a plurality of flat (interior and exterior surface) sensor mounts disposed about and through the duct, including an octagonal ring of sensor mounts circumscribing the duct body. The cage has a flat front opposite the rear that has a larger diameter than a diameter of the rear. The duct has an aspect ratio of exterior angle length to diameter no greater than 3.5:1 and the duct and prefilter combined has an aspect ratio of exterior angle length to diameter no greater than 4.5:1.

A combustion air intake apparatus for a truck, tractor, or bus vehicle for highway use includes an air deflecting element that is selectively deployable to cause dynamic air pressure created by vehicle motion to increase static air, pressure within the intake apparatus under appropriate conditions. Deployment or retraction of the air deflecting element is responsive to at least one of forward speed of the vehicle, air pressure downstream of an air inlet opening, or throttle position, and may further be responsive to detection of precipitation and/or particulate material. An air deflecting element may include a moveable plate or flap, moveable louvers, or a moveable duct.

A vehicle has a driver module and a propulsion module selectively connected to the driver module. The modules are separable from each other as independent units. The driver module has a driver module frame, at least one front wheel operatively connected to the driver module frame, at least one front suspension assembly operatively connecting the at least one front wheel to the driver module frame, and a seat connected to the frame. The propulsion module has a propulsion module frame, at least one rear wheel operatively connected to the propulsion module frame, at least one rear suspension assembly operatively connecting the at least one rear wheel to the propulsion module frame, a motor operatively connected to the at least one rear wheel, and an energy storage device operatively connected to the motor.

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.