An apparatus including a reciprocating internal combustion engine with at least one piston and cylinder set and an intake stream; at least one liquid atomizer in fluid communication with the intake stream operable to provide a plurality of liquid droplets with a diameter less than 5 m to the intake stream; and a controller where the controller is able to adjust an index of compression for the engine by: calculating a wet compression level in response to an engine operating limit and adjusting the at least one liquid atomizer in response to the wet compression level.

A method and system to restrict the flow of accumulated liquid water from the intake manifold into the cylinders of an internal combustion engine by reducing the velocity of contained liquid water as it moves through the containment feature during vehicle maneuvering are disclosed. The body of the intake manifold includes a water containment feature having a water containment reservoir having an open upper portion and water-restricting interior walls. A water passageway is provided in each interior wall. The water passageway may be of any of several shapes, including a V-shape notch extending from the top of the wall. The interior wall is a central interior wall and the containment reservoir further includes an intermediate interior wall between the side walls that intersects the central interior wall. The water passageway is formed in at least one of the interior walls and may be formed in all of the walls.

An inlet assembly for an auxiliary power unit for an aircraft, including a duct configured to provide fluid communication from an environment of the aircraft to an inlet of an engine of the auxiliary power unit, and a filter received in and extending across the duct. The filter includes a first filter portion permeable to air, positioned across only part of the duct and defining a transverse edge in the duct; a second filter portion permeable to air and extending from the transverse edge to an end downstream of the transverse edge, and a collection member impermeable to water. The collection member extends between the downstream end and a duct wall. The first and second filter portions are non-parallel and the second filter portion and the collection member are non-parallel. An auxiliary power unit assembly and a method of feeding air to an internal combustion engine are also discussed.

An air intake assembly configured to direct air into a throttle body of an engine of an automotive vehicle includes an air cleaner enclosure, primary and secondary air intake ducts and a downstream air intake duct. The primary and secondary air intake ducts route air into the air cleaner enclosure through a first inlet. A method of directing the intake air into the throttle body is also provided. The air cleaner enclosure includes a valve that is configured to move from a closed position to an open position to draw air into the air cleaner enclosure through a second inlet. The valve is moved to the open position upon a pressure increase experienced within the air cleaner enclosure due to water intake. A snorkel has a snorkel inlet that is positioned at an elevation above the first and second inlets.

A motor vehicle has an air intake system with an air duct. The air duct has an air inlet for taking in ambient air and an air outlet. The air duct has a curved bent section which, upstream, is closer to a vehicle running surface than downstream. In the event of a water level of water entering the air duct that is rising parallel to the vehicle running surface, the internal cross section of the bent section is closed by the water before the water can pass the bent section. A plurality of air openings downstream of the bent section is introduced through a wall of the duct in an outer surface of the duct that points away from the vehicle running surface.

An inlet manifold includes a plenum having a plenum floor and a plenum cover positioned next to the plenum floor, and at least one straw supported on and extending from the plenum floor toward the plenum cover to transport water.

A method and a system to restrict the flow of accumulated liquid water from the intake manifold into the cylinders of an internal combustion engine by reducing the velocity of contained liquid water as it moves through the containment feature during vehicle maneuvering are disclosed. The body of the intake manifold includes a water containment feature having a water containment reservoir having an open upper portion and water-restricting interior walls. A water passageway is provided in each interior wall. The water passageway may be of any of several shapes, including a V-shape notch extending from the top of the wall. The interior wall is a central interior wall and the containment reservoir further includes an intermediate interior wall between the side walls that intersects the central interior wall. The water passageway is formed in at least one of the interior walls and may be formed in all of the walls.

A method and a system to eliminate the flow of accumulated liquid water from the intake manifold into the cylinders of an internal combustion engine are disclosed. Particularly, the disclosed inventive concept provides a negative draft to the top of a water containment feature in the form of opposed baffles. The baffles increase the minimum angle the water has to reach to overflow out of the intake manifold and into the cylinders. The angle required to overflow is a composition of gravity and the acceleration of the vehicle. If the maximum acceleration (and thus maximum water angle) is less than the designed negative draft overflow protection, there will not be expected overflow. The water containment reservoir includes two opposed side walls, a front wall, a back wall, and a base. Each side wall has an upper end. The baffle extends from the upper end of at least one side wall.

The present disclosure relates to an exhaust-gas turbocharger for a supercharged internal combustion engine having a charge-air cooler. In order to prevent the formation in the charge-air-guiding parts of condensate which above a certain quantity, if it remains within the charge-air-guiding parts, leads to damage to the engine, such as, for example, ice formation, water shock or corrosion, it is proposed to provide a condensate outlet opening on the compressor of the exhaust-gas turbocharger, which opening is provided in a lowermost region of a charge-air flow path through the compressor.

There is provided an air cleaner configured to be disposed inside a vehicle body frame, the air cleaner including: an air cleaner case in which an intake chamber is formed; an air filter disposed in the intake chamber; an inlet tube configured to take in air to the intake chamber; and an outlet tube configured to send out the air from the intake chamber. The inlet tube extends in a front-rear direction. The inlet tube has a bottom wall curved downward in a side view to form a concave curved portion below a discharge port of the inlet tube. The concave curved portion is formed with a drain hole.