An intake system of engine comprises an intake pipe (8), an air intake manifold (6), and an auxiliary intake assembly (4) disposed on the intake pipe (8) and located before the air intake manifold (6) of an engine. The auxiliary intake assembly (4) comprises an auxiliary air inlet passage, an auxiliary air outlet passage (21), and a central passage (39). Air enters through the auxiliary air inlet passage, comes out from the auxiliary air outlet passage (21) and enters the central passage (39), so as to be mixed with air from the intake pipe (8). The present invention further relates to an engine intake system, comprising an electronic booster (4″) located upstream of the air intake manifold (6) of an engine. An air flow enters from an air inlet (4241″), flows out from an air outlet (4242″), is mixed with air that flows through the intake pipe (8), and then is inhaled into a cylinder of the engine. The present invention further relates to a engines comprising the above intake systems. These intake systems and engines can effectively reduce discharge, reduce fuel consumption, improve engine efficiency, improve a low-speed torque feature of the engines, and improve a low temperature cold start effect of the engines.

A separation chamber type anti-surge valve may include a valve body formed with a charge air passage inlet and a charge air passage outlet, and a valve cover coupled to the valve body by a fastening member to define an empty inner space between the valve body and the valve cover, in which the inner space is divided into a diaphragm chamber and a bypass chamber by a valve guide, one side tip of a valve rod being fixed in the diaphragm chamber, a valve disc fixed to another side tip of the valve rod, and the diaphragm chamber is divided into a control pressure chamber and a normal static pressure chamber.

An air cooling system for a vehicle engine includes an air intake configured to receive intake air for delivery to the engine, a first coolant loop thermally coupled to the air intake to provide cooling to the intake air, and a pump for circulating coolant through the first coolant loop. A second coolant loop is thermally coupled to the air intake to provide further cooling to the intake air, and undergoes a vapor compression cycle. A compressor circulates coolant through the second coolant loop. The first and second coolant loops are separate loops using a common condenser. A passive variable charge enabler assembly is configured to remove coolant circulating in the system when the compressor is on.

An engine assembly with an air intake system and a turbocharger device in fluid communication with the air intake system includes an electronic control unit in communication with the air intake system and turbocharger device. A CAC system is in downstream fluid communication with the turbocharger device and in upstream fluid communication with the air intake system and includes at least one flow adjustment mechanism in communication with the electronic control unit and selectively positionable between a first position and one or more second positions to adjust velocity of air from the turbocharger device flowing through the CAC system and to manage condensation buildup in the CAC system and/or to open a bypass duct in order for some or all of the turbo airflow to bypass the CAC system to reduce or eliminate condensation buildup in the CAC system at warm ambient conditions and ice buildup at cold ambient conditions.

A fresh air supply device for an internal combustion engine may include a filter element arranged in a filter compartment. A charge-air cooler may be arranged in a cooler compartment. A one-piece housing may integrally include the filter compartment and the cooler compartment. The charge-air cooler may have a coolant inlet, a coolant outlet and an internal coolant path which connects the coolant inlet to the coolant outlet. The internal coolant path may be coupled in a heat-transferring manner to a charge-air path extending inside the housing and through the cooler compartment.

A turbocompressor boost purge ejector tee includes a first passage formed into a housing along a common axis from a first direction, the first passage including an outlet in communication with an inlet area of the turbocompressor. A second passage is formed into the housing along the common axis from a second direction and includes a boost air inlet in communication with a turbocompressor high pressure internal outlet area and fluidly coupled to the first passage. The first and second passages of the housing defining a first flow path from the internal outlet area to the inlet area. An inlet port is associated with the housing and intersects the first passage, the housing defining a second flow path from the inlet port to the outlet, and the second flow path intersecting the first flow path upstream of the outlet. A nozzle is positioned in the second passage.

A turbocharger engine includes an engine body and a turbocharger. The turbocharger includes a large turbo unit having a large turbine chamber, a large compressor chamber, and a large turbine shaft extending between the two chambers; and a small turbo unit having a small turbine chamber, a small compressor chamber, and a small turbine shaft extending between the two chambers. The large compressor chamber is disposed upstream of the small compressor chamber in an intake passage. A large turbo axis and a small turbo axis are disposed to extend generally in the same direction as an engine output axis. The large turbo unit is disposed such that the large turbo axis is non parallel to the engine output axis, and a large-compressor-chamber-side portion of the large turbo axis is closer to the engine output axis than a large-turbine-chamber-side portion thereof in a plan view in an axis direction of the cylinder.

A housing of a compressor for an internal combustion engine is provided. The housing includes a first air inlet portion. Further, housing includes a tubular wall defining an annular chamber along a circumference of the first air inlet portion. Tubular wall comprising a second air inlet portion. Housing further includes an opening formed in a wall of first air inlet portion, contiguously extending along the circumference of the first air inlet portion, to fluidly couple the annular chamber with the first air inlet portion. The opening being formed at an offset from the second air inlet portion. The opening defines a first edge and a second edge in the wall of the first air inlet portion. The first edge and the second edge are radially offset from each other with respect to a central axis of the first air inlet portion.

A pneumatically actuated vacuum pump is disclosed. The pneumatically actuated vacuum pump includes a body. The body defines at least two converging motive sections each having an outlet end, at least two diverging discharge sections each having an inlet end, and at least one Venturi gap. The Venturi gap is located between the outlet ends of the at least two converging motive sections and the inlet ends of the at least two diverging discharge sections.

A turbocharger is provided including a turbine, a compressor and a bearing housing. A shaft is rotatably disposed within the bearing housing and extends into the turbine and the compressor. A bearing arrangement is disposed between the shaft and the bearing. The bearing arrangement includes a roller bearing formed between an outer bearing race element disposed in the bearing bore, and an inner bearing race element disposed in the outer bearing race element. A bearing retainer connected between the bearing housing and the compressor. An end portion of the bearing inner race element includes an integral oil slinger comprising a radially outward extending portion that slopes away from the shaft.