An air intake apparatus includes a plurality of funnel-shaped portions provided in a plurality of intake ports. The plurality of funnel-shaped portions respectively include open ends located at positions at which lengths of the plurality of intake ports are aligned with each other, the open ends being provided along a direction perpendicular to a direction in which respective centerlines of the plurality of intake ports extend.

An engine air intake duct includes a duct wall and an orifice cap. The duct wall extends between an air inlet and an air outlet and has at least one orifice disposed therethrough. The duct wall has an integrally-formed closure mechanism adjacent the orifice. The orifice cap is moveable relative to and securable to the closure mechanism to substantially cover the orifice.

An air pipe for motor vehicles, in particular for connecting a hot component to a cold component, is provided. A first connector at a first end of the pipe is provided for securing the pipe in an airtight manner to a hot component and a second connector at a second end of the pipe is provided for securing the pipe in an airtight manner to a cold component. At least one flexible pipe portion is provided between the first and the second connectors. Supporting rings made from a material which is dimensionally stable in relation to the flexible pipe material are provided. The supporting rings surround a free pipe cross section and stabilize the cross-sectional shape of the flexible pipe portion.

A functional component for influencing a tank ventilation of a fuel tank, functionally connected to an internal combustion engine, having a main body, wherein at least one flow channel for guiding fluid from an inlet side to an outlet side is formed in the main body, wherein at least one component for creating a clip connection of the functional component to an intake pipe is formed on the main body. The invention also relates to an arrangement of a functional component for influencing a tank ventilation of a fuel tank, functionally connected to an internal combustion engine, on an intake pipe.

A system for reducing noise associated with a compressor of an engine system comprises an intake manifold and a resonator comprising an outlet. The resonator is coupled to, and is positioned adjacent to, the intake manifold. An outlet pipe is in fluid communication with the outlet and the compressor, and a length of the outlet pipe extends from the outlet to the compressor. Positioning the resonator adjacent to the intake manifold reduces the length of the outlet pipe so as to reduce noise associated with air flowing through the outlet pipe.

An engine intake duct includes an upstream side linear portion, a bend portion, a downstream side linear portion, and a fin that rises from an inner surface of the bend portion on an inner side in a bend direction. A fin tip portion is located in the bend portion, and a fin rear end portion is located in the bend portion or the downstream side linear portion, and the fin includes a tip side inclined surface, a rear end side inclined surface, and a rear end surface that is a steep wall extending from a rear end of the rear end side inclined surface to the fin rear end portion. At least a part of a top of the tip side inclined surface of the fin is formed along an extension line of an inner surface of the upstream side linear portion toward the bend portion.

Embodiments of apparatus for controlling the movement of matter, including but not limited to one-way fluid valves, are disclosed. The apparatus may include a transition nozzle, a funnel nozzle, and a reverse flow blocker arranged in series in a case. A counter-flow area may be disposed about the funnel nozzle. The apparatus may permit matter to flow in a first direction, and discourage or prevent flow in a direction reverse to the first direction. Control over the flow of matter also may enable matter to be harvested, sorted, separated or combined with injected matter.

The invention relates to an internal combustion engine having a fuel tank (36), a tank ventilation line (38) and a Venturi nozzle (30) disposed in a fluid-carrying component (16), wherein the Venturi nozzle (30) has an inflow channel (28), an opening point (40) adjoining downstream of the inflow channel (28) with a fluid connection to the tank ventilation line (38), and an outflow channel (32) adjoining downstream of the opening point (40). In this case, an outflow section (48) of the Venturi nozzle downstream of the opening point (48) is surrounded by the component (16) in such a manner that a detection space (46) is formed around the outflow section (48), wherein the detection space (46) has at least one inlet opening (50) via which the detection space (46) can be pressurized and wherein at least one pressure sensor (34) for monitoring the pressure in the detection space (46) is provided.

A plurality of parts that constitute an intake passage connected with an intake port of an engine include a constriction part that has a protrusion formed to protrude on an inner circumferential surface side of the intake passage. The constriction part includes cylindrical connections disposed on both sides of a constriction path in which the protrusion is formed. The constriction path has an outer circumferential surface recessed inwardly in a radial direction so as to follow a shape of the protrusion. A portion recessed most of the recessed outer circumferential surface is disposed inside inner circumferential surfaces of the connections in the radial direction. The constriction path has a uniform wall thickness. The constriction part is connected upstream of the throttle body.

An air intake apparatus includes a plurality of funnel-shaped portions provided in a plurality of intake ports. The plurality of funnel-shaped portions respectively include open ends located at positions at which lengths of the plurality of intake ports are aligned with each other, the open ends being provided along a direction perpendicular to a direction in which respective centerlines of the plurality of intake ports extend.