An internal combustion engine includes a crankcase including a crankshaft and at least one cylinder coupled to the crankcase. The at least one cylinder has an intake port and defines an internal combustion chamber. The engine further includes a throttle body assembly with a throttle valve coupled to the intake port of the at least one cylinder and a throttle plate. Additionally, the engine includes a supplementary air inlet fluidly coupled to the intake port and spaced apart from the throttle valve. The supplementary air inlet is configured to receive a flow of air from a location downstream of the throttle plate when the throttle plate is in a fully closed position and the flow of air is directed into the combustion chamber through the intake port for combustion therein.

Substances in external EGR gas are smoothly guided to a combustion chamber. An intake passage includes: a main intake passage including intake ports and communicating with a combustion chamber and having a supercharger interposed in the main intake passage; and a bypass passage branching off from the main intake passage upstream of the supercharger, and connected downstream of the supercharger; a flow rage adjustment valve changing a cross-sectional flow area of the bypass passage. The bypass passage is provided above the main intake passage, and includes an upper passage to which an EGR passage is connected.

Molded articles are disclosed having a complex three-dimensional shape. In one embodiment, the molded articles comprise tubular members formed through blow molding that have multiple linear sections separated by curved sections. The curved sections can include multiple angular displacements in multiple planes. The tubular members are molded from a polymer composition containing a high temperature polymer, such as a polymer having a melting point of greater than about 280 C., such as greater than about 290 C. In one embodiment, the tubular member includes at least three angular displacements of from about 60 to about 120, such as from about 70 to about 110.

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.

An object is to provide a fluid machine whereby it is possible to improve performance, for example, expand a flow-rate operation rage with a simplified shape of an intake pipe. A fluid machine includes an impeller mounted to a rotation shaft, a housing which houses the impeller rotatably, and an intake pipe for supplying a fluid to the housing. The intake pipe includes at least a first bend portion disposed on a first plane, and a second bend portion disposed at a downstream side of the first bend portion and on a second plane which is different from the first plane. The second bend portion includes an upstream section having a center axis oriented along a center axis of a downstream section of the first bend portion and a downstream section having a center axis oriented along an axial direction of the impeller at a front of the impeller. The intake pipe has a constant cross-sectional shape from an upstream end of the first bend portion to a downstream end of the second bend portion.

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.

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. In a first operating condition, inlet air is directed into the air cleaner enclosure unit from the secondary air intake duct and routed (i) through the downstream air intake duct and into the throttle body and (ii) through the primary air intake duct and out of a primary air inlet. In a second operating condition, inlet air is directed into the air cleaner enclosure unit from the primary air intake duct and routed (iii) through the downstream air intake duct and into the throttle body and (iv) through the secondary air intake duct and out of the secondary air inlet. A method of directing the intake air into the throttle body is also provided.

Output performance of the engine may be maximized by a configuration in which air is supplied so as to maximize volumetric efficiency of the respective cylinders in a multi-cylinder engine including a plurality of cylinders.

An intercooler pipe that improves noise, vibration, and harshness (NVH) performance is provided. The intercooler pipe includes a plurality of bellowses, wherein an exterior of the bellows is made of a soft material and an inside thereof is made of a hard material to make a storage modulus of the inside of the bellows greater than that of the exterior thereof. In addition, the intercooler pipe improves the durability of an intercooler pipe.