A fresh gas supply device for an internal combustion engine having an exhaust gas turbocharger includes a charge air inlet for taking in a compressed charge air flow from the exhaust gas turbocharger; an outlet which is connected to the charge air inlet via a valve section, said valve section being closed in a closed position by at least one flap valve which can be pivoted, preferably, about a flap rotational axis; an adjusting device which is coupled to the at least one flap valve for adjusting the same in the closing direction; and a compressed air inlet for taking in compressed air into the outlet. The compressed air inlet is arranged such that the compressed air is directed into a compressed air flow in the direction of the valve section to the at least one flap valve. A corresponding method for operating the fresh gas supply device is provided.

The present disclosure relates to an exhaust system for an internal combustion engine. The exhaust system comprises an exhaust conduit adapted to fluidly connect the internal combustion engine to a turbine of a turbo and a valve comprising a valve flap located in the exhaust conduit in a position between the internal combustion engine and the turbine. The valve flap is pivotally connected to at least a portion of the exhaust conduit. The exhaust system further comprises an actuator adapted to impart a load on at least a portion of the valve to thereby control a pivotal position of the valve flap in the exhaust conduit to thereby control a gas flow via the exhaust conduit and an actuator load sensor adapted to detect load information indicative of a magnitude of the load that the actuator currently imparts on at least the portion of the valve.

A fresh air system for supplying combustion chambers of an internal combustion engine with fresh air may include a housing, through which at least one fresh air path passes, and a flap mechanism, which includes at least one flap adjustably mounted on the housing. The flap may be rotatably adjustable between a closed position, in which the flap closes off the fresh air path in a fluid-tight manner and an opened position, in which the flap opens the fresh air path for fresh air to flow through. The flap mechanism may include a spring-elastic preload element, which supports itself on the housing and preloads the flap against at least one of the opened position and the closed position.

The present invention provides an intake control device that appropriately restricts the flow of intake air when a valve body is set to a restriction position while the valve body is smoothly operated. The valve body is configured such that it is supported so as to be capable of swinging with respect to a sleeve, and when the valve body is set to the restriction position, a main valve portion of the valve body is lifted upward from a bottom plate, and a secondary valve portion of the valve body is sunk into an accommodating space of the bottom plate. In the accommodating space, a stepped portion that allows outward displacement from an inner surface of the sleeve is formed, and a seal portion that is brought closer to the stepped portion when the valve body is set to the restriction position is formed in the secondary valve portion.

A gas supply nozzle assembly for port injection of gaseous fuel into a cylinder of an engine includes a main body with a funnel shape that has a large area inlet for attachment to a metering valve and a small end. A centerline of the main body curves through an angle greater than zero. An end nozzle that defines a gas passage extending between an inlet and a discharge end. A check valve is clamped between the small end of the main body and the inlet end of the end nozzle, and is biased closed to block flow from the end nozzle into the main body, the opening responsive to a pressure differential to permit flow from the main body into the end nozzle.

The present disclosure relates to an exhaust system for an internal combustion engine. The exhaust system comprises an exhaust conduit adapted to fluidly connect the internal combustion engine to a turbine of a turbo and a valve comprising a valve flap located in the exhaust conduit in a position between the internal combustion engine and the turbine. The valve flap is pivotally connected to at least a portion of the exhaust conduit. The exhaust system further comprises an actuator adapted to impart a load on at least a portion of the valve to thereby control a pivotal position of the valve flap in the exhaust conduit to thereby control a gas flow via the exhaust conduit and an actuator load sensor adapted to detect load information indicative of a magnitude of the load that the actuator currently imparts on at least the portion of the valve.