An intake noise reduction device that can mitigate deformation of a flow-regulating net portion made of an elastic body. The intake noise reduction device 100 is made of an elastic body that is disposed downstream of a throttle valve and includes an annular gasket portion 110 and a flow-regulating net portion 120 provided inside the gasket portion 110 integrally with the gasket portion 110, constituted by a linear portion having a mesh shape. The linear portion having the mesh shape constituting the flow-regulating net portion 120 includes first linear parts 121 that extend radially and second linear parts 122 that extend circumferentially. One of any given two parts of the first linear part 121 on a radially outer side has a width larger than or equal to that of the other part on a radially inner side, and a radially outermost part of the first linear part has a larger width than a radially innermost part.

An air intake system (100) for vehicle is provided. The air intake system (100) includes an air filter assembly (108), and an air conduit (101). The air filter assembly (108) includes a first part mounted to a frame of the vehicle, and a second part mounted to a chassis of the vehicle. The first part and second part are arranged in such a manner that the attachment of the frame and the chassis together causes assembly of the first part and second part of the air filter assembly (108). The air conduit (101) includes an inlet end (103) and an outlet end (105), and coupled to a turbocharger. The air conduit (101) extends horizontally between the inlet end (103) and the outlet end (105) and comprises a plurality of segments such that a first segment bends at predefined angles to couple to a second segment of the plurality of segments.

A system includes a generator and an enclosure surrounding the generator, the generator having an air intake and an inside surface. The system also includes an air intake housing affixed to the inside surface of the enclosure and fluidly connected to the air intake, the air intake housing terminating in an air intake housing inner plate positioned at inner edge of the air intake housing. The air intake housing inner plate has a plurality of air intake holes. In addition, the system includes a damper, the damper abutting the air intake housing inner plate, the damper having a plurality of damper holes. The damper is adapted to slide along the air intake housing inner plate.

Disclosed herein is an actuator for an intake manifold, wherein the actuator may include: a housing having a negative pressure space; an operating unit operated by the pressure of air introduced into and discharged from the negative pressure space, and rotating the variable valve; an exhaust flow path connected to an external negative pressure supply source; an intake flow path receiving external air which raises the pressure of the negative pressure space; a spool hole formed in the housing so as to communicate with the exhaust flow path and the intake flow path; an air entry and exit flow path formed in the housing so as to communicate with the negative pressure space and the spool hole; a valve body selectively opening/closing the exhaust flow path and the intake flow path; and a solenoid unit operating the valve body.

An air conduction system includes an air collecting chamber, a first air inlet, an additional air inlet, and a buoyancy body. Air is supplyable to the air collecting chamber by said air inlets. The first air inlet has an air control valve via which the air inlet is selectively closed. The additional air inlet has an additional air control valve via which the additional air inlet is selectively closed. A buoyancy body is provided which is movable via a geodetically rising water level and which is operatively connected to a closure element of the air control valve of the first air inlet. The closure element is convertible from an open state, in which the first air inlet is fluidically connected to the air collecting chamber, into a closed state, in which said fluidic connection is interrupted, when the water level rises. The closure element comprises the buoyancy body.

A gasoline compression ignition engine, a vehicle and a method of operating a gasoline compression ignition engine. An inlet air management system includes a membrane-based separator and an exhaust gas recirculation flowpath that cooperate to deliver a nitrogen enriched air stream to the engine to help reduce exhaust gas emissions. The separator segregates the incoming air into the nitrogen enriched air stream as well as an oxygen enriched air stream such that the latter can be used for various engine load conditions, as well as for supplemental air for a cabin or related passenger compartment within a vehicle that is powered by the engine. Significantly, during an increase in engine load not associated with the cold start and warm-up conditions, the nitrogen enriched air supply that is used for the exhaust gas emissions reduction is provided at least partially by the nitrogen enriched air stream from the separator, as well as increasingly by the nitrogen enriched combustion product stream from the exhaust gas recirculation flowpath.

Methods and systems are provided for forming an air-fuel mixture in a combustion chamber of an internal combustion engine. In one example, a system may include an adjustable intake line coupled to an inlet opening of the cylinder. The system may adjust turbulence formed in the cylinder in response to engine operating conditions by controlling a pivoting angle between a first section of the intake line and a second section of the intake line.

An outboard motor includes an engine, a cowl, and a tilt mechanism. The cowl accommodates the engine. The tilt mechanism pivots the cowl from a tilt-down position to a tilt-up position about a horizontal tilt axis. The cowl includes a movable portion that moves from a normal position to a contracted position to reduce a contour of the cowl when the cowl is pivoted from the tilt-down position to the tilt-up position by the tilt mechanism.

Methods and systems are provided for adjusting engine operating parameters to regulate condensate formation in a charge air cooler. Based on conditions conducive to condensate formation, one or more of throttle valve position, active grille shutter opening and compressor speed may be regulated in order to decrease dew point temperature and condensation at the charge air cooler.

A hose assembly 20 for engine intake air comprises a hose 22 having connection regions 22a, 22b at first and second ends of the hose and an axially compressible and extendable bellows region 22c disposed between the two connection regions. In the invention, an inextensible inner tube 24 is disposed within the hose 22 which has a gas-impermeable wall. The inner tube 24 has first and second ends 24a, 24b that seal, respectively, against the first and second connection regions 22a, 22b of the hose when the bellows region is compressed. At least one of the first and second ends of the inner tube 24a separates from the adjacent connection region 22a of the hose 22 when the bellows region 22c is extended.